WO2013065781A1 - Plate material processing device, pressing mold, and pressing mold installation body - Google Patents

Plate material processing device, pressing mold, and pressing mold installation body Download PDF

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Publication number
WO2013065781A1
WO2013065781A1 PCT/JP2012/078319 JP2012078319W WO2013065781A1 WO 2013065781 A1 WO2013065781 A1 WO 2013065781A1 JP 2012078319 W JP2012078319 W JP 2012078319W WO 2013065781 A1 WO2013065781 A1 WO 2013065781A1
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WO
WIPO (PCT)
Prior art keywords
pressing
plate material
die
mold
end surface
Prior art date
Application number
PCT/JP2012/078319
Other languages
French (fr)
Japanese (ja)
Inventor
英俊 金
隆浩 柴田
小山　純一
Original Assignee
株式会社 アマダ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 アマダ filed Critical 株式会社 アマダ
Priority to CN201280054044.1A priority Critical patent/CN103906587A/en
Priority to US14/355,730 priority patent/US20140283576A1/en
Publication of WO2013065781A1 publication Critical patent/WO2013065781A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor

Definitions

  • the present invention relates to a processing apparatus, a pressing die, and a mold installation body for processing a plate material made of a metal plate, and in particular, has a function of pressing an end portion of the plate material instead of or in addition to bending the plate material.
  • the present invention relates to a plate material processing apparatus, a pressing mold, and a mold installation body.
  • warpage S such as boat warp is likely to occur in the plate material W as shown in FIG. It is known that the warp S occurs when a plate material W having a relatively small width dimension and a relatively long ridgeline is bent.
  • the cut plate material is bent through a leveler, or after being bent by a press machine, the plate material is placed upside down to suppress the warpage.
  • a leveler when a leveler is used, there is a problem that it is necessary to prepare a leveler that can handle various sizes of plate materials between the cutting and bending processes.
  • the warp is corrected after bending by a press machine, there is a problem that correction is difficult.
  • Patent Document 1 a mold is formed so as to give a bending in a direction opposite to the U-shaped bending to a plate material, and then bending back is performed. It is described that warping is reduced by performing bending using two steps in two stages. Patent Document 2 describes that warping is reduced by a two-stage process in which a Z-shaped material or a hat channel material is bent with a mold and then bent back.
  • Patent Document 1 not only a special mold is required, but also the size of the plate material cannot be dealt with flexibly, and the shape of the plate material after processing becomes complicated. is doing.
  • Patent Document 2 since bending is performed in two steps, a long time is required for the processing, and a problem that a special shape cannot be accommodated. Have.
  • An apparatus a pressing mold, and a mold installation body (a mold installation body that is installed in a processing apparatus and supports a mold) can be provided.
  • a plate material processing apparatus including a pressurizing unit that pressurizes a plate material and a receiving unit that receives the plate material pressed by the pressurizing unit includes the pressurizing unit.
  • An end face pressing upper mold that receives the pressure from the end face, and an end face pressing lower mold that is provided on the receiving portion side so as to face the end face pressing upper mold and in which the end face of the plate member is inserted between the end face pressing upper mold
  • an end surface pressing portion that presses one end surface along the folding line before processing of the plate material by moving the end surface pressing upper die relative to the end surface pressing lower die side by the pressing force of the pressing portion.
  • the abutting surface of one end surface of the plate material is higher in the end surface pressing than the pressing center of the pressing force of the pressing portion to the end surface pressing upper mold.
  • the plate member is positioned so as to be located on the near side in the insertion direction of the plate member between the die and the lower end surface pressing die. And having an end face pressing width adjustment unit that sets a pressing width of the surface.
  • a pressing mold used in a processing apparatus for bending a plate material using a punch, a die, and a pressurizing unit uses a front punch on the die side.
  • the end face pressing part that presses one end face along the folding line before processing of the plate material
  • the abutting surface of one end surface of the plate member is more than the end surface pressing upper die and the pressing center of the pressing portion of the pressing portion to the end surface pressing upper die.
  • the plate member is positioned so as to be positioned on the near side in the insertion direction of the plate member between the end surface pressing lower mold. And having an end face pressing width adjustment unit that sets a pressing width of the surface.
  • a mold installation body used by being installed in a processing apparatus for bending a plate material using a punch and a die is a mold installation in which the die is installed.
  • an end surface pressing portion that presses a portion on the end surface side along the bend line of the plate material before being bent by the punch and the die installed in the mold installation portion Is located on the opposite side to the apparatus base of the processing apparatus, with the pressing center between the punch and the die in between.
  • FIG. 16 is a view showing a cross section taken along line XVI-XVI in FIG. 15. It is the figure which simplified FIG. FIG.
  • FIG. 16 is a diagram showing a simplified XVIII-XVIII cross section in FIG. 15. It is a figure which shows the state which descend
  • FIG. 18 is a view showing a state in which the die holding body (upper pressing die) is lowered after the lower pressing die is moved to the rear side from the state of FIG. 17, and is not pressed by clamping the end face of the plate material.
  • FIG. It is a figure which shows the state which moved the butting (butting support body) from the state of FIG. 18 to the rear end.
  • FIG. 18 is a view showing a state where a plate material is installed on the die after the die (die holding body) is lowered from the state of FIG. 17, the punch is lowered, the plate material is sandwiched between the die and the punch, and the plate material is bent. . It is an enlarged view of the XXV part of FIG.
  • FIG. 28 It is a perspective view of the site
  • FIG. 1 is a side view of the whole, and FIGS. 2 and 3 are bending sections 2. It is the perspective view which shows these, and the perspective view from a back surface. 4 to 7 show the end surface pressing portion 3 and the height adjusting mechanism 41 in the end surface pressing portion 3, FIGS. 8 to 11 show the pressing width adjusting mechanism 51 in the end surface pressing portion 3, and FIG. 12 shows the end surface of the plate material. The press control of is shown.
  • a plate material bending apparatus (for example, a press brake) 1 has an end surface of a plate material W for adjusting a residual stress generated by cutting in addition to a function of bending a plate material (plate-shaped workpiece) W made of a metal plate.
  • the function to press is provided. Therefore, as shown in FIG. 1, the bending apparatus 1 includes a bending unit 2 that bends the plate material W by V-bending and the like, an end surface pressing unit 3 that presses one end surface side of the plate material W before the bending process, The apparatus base 5 which supports these integrally is provided.
  • the apparatus base 5 is formed in a vertically long U-shape (or C-shape) when viewed from the side by connecting the upper base 5a and the lower base 5b in a state of facing each other vertically.
  • the processing part 2 is arranged on the upper base 5a side, and the end face pressing part 3 is arranged on the lower base 5b side in a state facing the lower side of the bending processing part 2.
  • the end face pressing portion 3 presses one end face side of the plate material W cut by laser, shearing, or the like to increase or decrease the residual stress. After the pressing on the one end face side, the bending portion 2 bends the plate material W. Thereby, the bending process of the board
  • the bending unit 2 drives the punch side member 11 provided on the upper base 5 a side, the die side member 12 provided below the punch side member 11, and the punch side member 11.
  • a bending drive device (drive device) 13 comprising a hydraulic cylinder.
  • the hydraulic cylinder may be another actuator such as a servo motor.
  • the bending drive device 13 composed of a hydraulic cylinder is attached to the upper base 5a of the device base 5 so as to face the up-down direction, and moves the punch side member 11 in the direction of the die side member 12 by its expansion and contraction operation. Is moved up and down.
  • the die side member 12 may be moved in the vertical direction.
  • the punch side member 11 is provided on the lower side of the bending drive device 13, and includes a punch 14 that presses the plate material W, a punch holder 15 to which the punch 14 is attached, and an upper table 16 to which the punch holder 15 is attached.
  • the upper table 16 is connected to the bending drive device 13, and when the bending drive device 13 is driven, the punch 14 moves up and down together with the upper table 16 and the punch holder 15 to press the plate material W.
  • the die-side member 12 faces the punch 14 and receives a die 17 that receives the plate material W pressed by the punch 14, a die holder (first die holder) 18 that supports the lower portion of the die 17, and a lower table (second die). Die holding body) 21.
  • the lower table 21 sandwiches and holds the die 17 together with the die holder 18, and a sandwiching piece 21 a facing the die holder 18 protrudes from the upper table 21.
  • the leg portion 17a is sandwiched between the die holder 18 and the sandwiching piece 21a, and the die 17 is held by the die holder 18 and the lower table 21 by tightening the die holder 18 with a screw in this sandwiched state.
  • the above die side member 12 is supported by the base frame 25 as a whole by attaching the lower table 21 to the base frame 25 fixed on the lower base 5 b of the apparatus base 5.
  • the base frame 25 is formed in a side L shape having a side wall portion 25a that rises vertically, and the lower table 21 is attached to the side wall portion 25a of the base frame 25 so as to be vertically movable. That is, as shown in FIG. 3, a plurality of elongated holes 26 extending in the vertical direction are formed in the side wall portion 25 a of the lower table 21 at predetermined intervals, and each of the plurality of screws 27 attached to the back surface of the lower table 21.
  • the lower table 21 is attached to the base frame 25 so as to be vertically movable by passing through the long hole 26.
  • a downward moving force is exerted on the lower table 21 by the pressing of the punch 14.
  • the lower table 21 moves in the same direction.
  • a return spring 28 corresponding to the screw 27 is provided inside the side wall portion 25 a of the base frame 25, and the lower table 21 is compressed by the lower table 21 by the downward movement of the lower table 21. Return to the original height position.
  • the bending portion 2 is for bending the plate material W into V-bending or the like, and the bending of the plate material W is performed along the pressing center 7 (see FIG. 1) between the punch 14 and the die 17.
  • the end face pressing portion 3 includes a lower end face pressing mold 31 disposed to face the lower table 21.
  • the lower side end face pressing die 31 presses one end face side along the folding line of the bending process of the plate material W before the bending process.
  • One end face side of the plate material W is placed on the lower end face pressing die 31, and the punch 14 moves in the direction of the die 17 in this placement state, and the lower table 21 moves in the same direction.
  • the plate member W is sandwiched between the lower table 21 and the lower end surface pressing die 31 so that the vicinity of one end surface 19 is pressed.
  • the lower end of the lower table 21 corresponding to the lower end surface pressing die 31 is an upper end surface pressing die 32.
  • one apparatus base 5 is provided with a bending pressing portion 2 for bending the plate material W and an end surface pressing portion 3 for pressing the end surface of the plate material W in order to suppress warpage. Therefore, pressing and bending of the end surface of the plate material W can be performed with a single device. In addition, handling of the plate material W is easy and workability can be improved. Moreover, since the pressing to the one end surface 19 of the board
  • the lower end face pressing die 31 is formed by a plurality of fixed dies 33 and a plurality of movable dies 35.
  • the plurality of fixed dies 33 are provided on the base frame 25 with their height positions fixed.
  • the movable mold 35 is provided adjacent to the fixed mold 33, and the height position can be changed with respect to the fixed mold 33.
  • the height position of the movable mold 35 is changed by the height adjustment mechanism 41.
  • the height adjustment mechanism 41 includes a height adjustment drive source 42 disposed on the back side of the base frame 25 and a seam 43 disposed above the base frame 25.
  • a cylinder or a motor can be used as the height adjustment drive source 42, but a cylinder is used in this embodiment.
  • the seam 43 is formed in a flat plate shape and is disposed above the base frame 25 so as to face the lower surface of each movable die 35.
  • the lower surface of the movable die 35 facing the seam 43 is a stepped surface of a high surface portion 35a and a low surface portion 35b.
  • the flat seam 43 is movable on the base frame 25 in the direction of the die side member 12 or in the direction away from the die side member 12.
  • a connecting bracket 44 is attached to the tip of the piston 42 a of the height adjusting drive source 42, and a seam 43 is attached to the tip of the connecting bracket 44.
  • the connection bracket 44 slides when the height adjustment drive source 42 is driven, and the sliding movement causes the seam 43 to move in the above-described direction, that is, the direction of the die side member 12 and the direction away from the die side member 12.
  • FIG. 7 shows this state, in which the movable die 35 is lower than the fixed die 33.
  • the pressing width of one end face of the plate material W can be adjusted. This adjustment is performed by the pressing width adjusting mechanism 51.
  • the pressing width adjusting mechanism 51 includes an end surface contact bar 53 provided on the lower end surface pressing die 31 and a back gauge (not shown) for moving the lower end surface pressing die 31. Prepare.
  • the end surface abutment bar 53 is provided on the fixed die 33 in the lower end surface pressing die 31 and is inserted between the fixed die 33 and the lower table 21 of the die side member 12. By being inserted between the fixed mold 33 and the lower table 21, the end surface contact bar 53 faces the one end surface 19 of the plate material W placed on the lower end surface pressing mold 31 (see FIG. 1). The one end surface 19 of the plate material W comes into contact. Since the plate material W is stopped by the lower end surface pressing die 31 by this contact, the size of the pressing surface of the end surface 19 of the plate material W to be pressed can be adjusted.
  • the fixed mold 33 is formed with a bar collecting groove 56 into which the end surface contact bar 53 can enter.
  • a coil-shaped support spring 57 is provided inside the bar collecting groove 56, and the end surface contact bar 53 is supported by the support spring 57.
  • the end surface contact bar 53 enters the bar collecting groove 56 while bending the support spring 57.
  • the end surface contact bar 53 is pushed out of the bar collecting groove 56 by the torque of the bent support spring 57 and appears on the upper surface of the fixed mold 33.
  • the end surface abutting bar 53 is provided so as to be able to appear and retract with respect to the fixed mold 33.
  • the back gauge acts as a movable part that moves the fixed mold 33 in a direction orthogonal to the pressing direction of the punch 14 to the die 17.
  • a cylinder or the like is used for the back gauge, and connecting blocks 59 are connected, and a fixed mold 33 is attached to each connecting block 59.
  • the fixed die 33 advances in a direction orthogonal to the pressing direction of the punch 14 to the die 17 by the pressing operation of the back gauge.
  • a return spring 60 is in contact with the back surface of the fixed die 33, and the return spring 60 bends when the fixed die 33 advances. Therefore, when the drive of the back cage stops, the fixed mold 33 that has advanced returns to the original position by the reaction force of the bent return spring 60.
  • Such a pressing width adjusting mechanism 51 adjusts the contact position of the end surface contact bar 53 to the end surface of the plate material W by moving the fixed die 33 in a direction orthogonal to the pressing direction of the punch 14 to the die 17. be able to. For this reason, the pressing dimension (depth in the insertion direction) to the vicinity of the end surface 19 of the plate material W by the lower table 21 (upper end surface pressing die 32) and the lower end surface pressing die 31 is adjusted according to the residual stress of the plate material W. Can do. This makes it possible to easily control the residual stress of the plate material W.
  • the plate material W is inserted between the lower table 21 and the lower end surface pressing die 31 with one end surface 19 facing the die side member 12. Thereafter, the bending driving device 13 is driven to move (lower) the punch 14 in the direction of the die 17, and the lower table 21 below the die 17 is lowered by the moving force to press the upper end face of the lower table 21.
  • One end surface side (edge portion in the vicinity of the end surface 19) of the plate material W is pressed by the mold 32 and the lower end surface pressing mold 31.
  • the portion to be pressed by the plate material W (the portion to be pressed between the upper end surface pressing die 32 and the fixed die 33 or the movable die 35) is the pressing center 7 between the punch 14 and the die 17. It is located in the insertion direction side of board material W rather than. If the fixed die 33 is moved by the pressing width adjusting mechanism 51 and the end surface contact bar 53 is moved with respect to the pressing center 7, the width of the portion to be pressed of the plate material W can be appropriately changed. In addition, a part of the portion to be pressed of the plate material W may be located on the opposite side of the pressing center 7 in the insertion direction of the plate material W.
  • the position of one end surface 19 of the plate material W (position near the end surface to which the plate material W is pressed) can be accurately set by adjusting the pressing width adjusting mechanism 51. For this reason, the treatment with respect to the residual stress of the plate material can be performed with high accuracy.
  • the bending pressure portion 2 that bends the plate material W and the end surface pressure portion that presses the end surface of the plate material W in order to suppress warpage. 3 is provided on one device base 5, the end surface of the plate material W can be pressed and bent by a single device, and the plate material can be easily handled and the workability can be improved. .
  • the pressing width of one end surface 19 of the plate material W can be adjusted by providing the pressing width adjusting mechanism 51 having the end surface abutting bar 53 that contacts the end surface of the plate material W, the pressing dimension to the end surface of the plate material W is reduced. Can be adjusted in accordance with the residual stress of the plate material W, and the residual stress of the plate material W can be easily controlled.
  • a processing apparatus (bending apparatus for plate material W) 101 according to the second embodiment is configured in substantially the same manner as the bending apparatus 1 according to the first embodiment, and is a plate material (plate-like) made of a metal plate. In addition to the function of bending the workpiece W, it has a function of pressing the end face of the plate material W in order to adjust the residual stress generated by cutting. And it operate
  • a bending device for example, a press brake
  • a bending portion 103 that bends a plate material W by V-bending or the like, and a plate material W before the bending processing.
  • the end surface pressing part 105 which presses one end surface side of this, and the C-shaped apparatus base 107 which supports these integrally are provided.
  • the device base 107 is formed in a C shape when viewed from the side surface by connecting the upper base 107 a and the lower base 107 b in a state of being vertically opposed to each other. Further, the bending processing portion (bending pressing portion) 103 is arranged on the upper base 107 a side, and the pressing processing portion (end surface pressing portion) 105 faces the lower side of the bending processing portion 103 in the lower base. Arranged on the stage 107b side.
  • the end face pressing portion 105 presses one end face side of the plate material W cut by laser, shearing or the like to increase or decrease the residual stress. After pressing the one end face side or after pressing both end face sides, the bending portion 103 bends the plate material W. Accordingly, it is possible to perform bending processing of the plate material W in which warpage generation is suppressed and the warpage amount of the boat warpage is reduced.
  • the bending portion 103 drives the punch side member 109 provided on the upper base 107a side, the die side member 111 provided on the lower base 107b side below the punch side member 109, and the punch side member 109.
  • a bending driving device (driving device) 113 including another actuator such as a hydraulic cylinder 163 or a servo motor.
  • the hydraulic cylinder 163 of the bending drive device 113 is attached to the upper base 107a of the device base 107 so as to face in the vertical direction, and moves the punch side member 109 in the direction of the die side member 111 by its expansion / contraction operation. Is moved up and down.
  • the thrust of the punch-side member 109 can be adjusted by changing the pressure of the hydraulic oil supplied to the hydraulic cylinder 163. Further, instead of or in addition to moving the punch side member 109 in the vertical direction, the die side member 111 may be moved in the vertical direction.
  • the punch side member 109 is provided on the lower side of the bending drive device 113, and the punch 115 that presses the plate material W, the punch holder 117 to which the punch 115 is integrally attached, and the punch holder 117 are integrally attached. And an upper table 119.
  • the upper table 119 is connected to the bending drive device 113, and when the bending drive device 113 is driven, the punch 115 moves up and down together with the upper table 119 and the punch holder 117 to press the plate material W.
  • the die-side member 111 faces the punch 115, and as shown in FIGS. 16, 17, 24, etc., a die 121 that receives the plate material W pressed by the punch 115 and a die holder that supports the lower portion of the die 121 ( Die holding body) 125 and an upper pressing die (upper end face pressing die; die holder pressing member) 127.
  • the die holding body 125 is integrally provided with a die 121 and an upper pressing die 127.
  • the die side member 111 is attached to the base frame 123 fixed on the lower base 107b (lower table 159) of the apparatus base 107, so that the die side member 111 (die holding body 125, die 121, and upper pressing type) 127) is supported by the base frame 123 and is movable up and down with respect to the base frame 123.
  • the die side member 111 is biased upward by a biasing member such as a cylinder (for example, a pneumatic cylinder) 129. That is, when compressed air is supplied to the lower cylinder chamber of the pneumatic cylinder 129, the die side member 111 is raised as shown in FIG. If the pressure of the compressed air supplied to the pneumatic cylinder 129 is constant, the die side member 111 is always urged upward with a constant urging force regardless of this position.
  • a biasing member such as a cylinder (for example, a pneumatic cylinder) 129. That is, when compressed air is supplied to the lower cylinder chamber of the pneumatic cylinder 129, the die side member 111 is raised as shown in FIG. If the pressure of the compressed air supplied to the pneumatic cylinder 129 is constant, the die side member 111 is always urged upward with a constant urging force regardless of this position.
  • the die side member 111 may be forcibly lowered by supplying compressed air to the upper cylinder chamber of the pneumatic cylinder 129 and opening the lower cylinder chamber to the atmosphere.
  • an elastic body such as a compression coil spring may be used instead of the cylinder or the like, and the die side member 111 may be urged upward in the same manner as in the bending apparatus 1 according to the first embodiment.
  • the die side member 12 may be biased upward using a cylinder or the like.
  • an actuator such as a servo motor may be used to move the die holder 125 and the upper end face pressing die 127 in the vertical direction and position them at an arbitrary position.
  • the bending portion 103 is for bending the plate material W into a V-bend or the like, and the bending of the plate material W is performed along the pressing center 131 (see FIG. 24 and the like) between the punch 115 and the die 121.
  • the end face pressing portion 105 is configured to include a lower end face pressing mold (lower pressing mold) 135 disposed to face the upper pressing mold 127.
  • the lower pressing die 135 presses one end face side along the folding line of the bending process of the plate material W before the bending process.
  • One end face side of the plate material W is placed on the lower end face pressing die 135, and the punch 115 moves in the direction of the die 121 (downward) in this placement state so that the die holding body 125 and the upper pressing die 127 are in the same direction. This movement causes the plate material W to be sandwiched between the upper pressing die 127 and the lower pressing die 135, thereby pressing one end surface of the plate material W (see FIG. 19).
  • a plurality of lower pressing dies 135 are capable of pressing (pressing) the end surface of the plate member W with the die side member 111 (upper pressing die 127) (in cooperation with the upper end surface pressing die 127 of the die side member 111).
  • the pressing molds 137 (137A, 137B, 137C) and 139 (139A, 139B, 139C, 139D, 139E, 139F) are divided (see FIG. 15 and the like).
  • the pressing dies 137A, 137B, 137C can be selectively pressed (pressurized) when pressing the plate material W with the die side member 111. is there.
  • the above selection is made so that the pressing force of the plate material W by the end face pressing portion 105 is not insufficient even when the pressing force (pressing force) of the bending drive device 113 is insufficient.
  • the end surface pressing portion 105 presses the end surface of the plate member 5 (pressing the plate member W in the thickness direction) using the pressing force of the bending device 101 (the hydraulic cylinder 163 of the bending drive device 113). It has become.
  • the lower end face pressing die 135 is divided into three pressing dies (first pressing die 137A, second pressing die 137B, and third pressing die 137C) (FIGS. 13 and 15). reference).
  • the length of the first pressing mold (divided mold) 137A (the length including the pressing molds 139A and 139B), the length of the second pressing mold 137B (the length including the pressing molds 139C and 139D), The length of the third pressing mold 137C (the length including the pressing molds 139E and 139F) is about 500 mm.
  • the length (horizontal dimension) of the lower end face pressing die 135 is 1500 mm.
  • the lengths of the pressing dies (divided dies) 139A to 139F are about 50 mm, which is equal to each other, and are sufficiently smaller than the length of the pressing dies 137.
  • the length on the end face side along the folding line of the bending process of the plate material W is slightly less than 1500 mm, and the 500 mm portion on the one end side that is less than 1500 mm in length is the first pressing mold 137A and the pressing molds 139A and 139B ( The press dies 139C to 139F may be included). Similarly, it is assumed that the central 500 mm portion is pressed by the second pressing die 137B, and the 500 mm portion on the other end side is pressed by the third pressing die 137C.
  • the maximum pressing force in the bending apparatus 101 is 50 t (50000 kgf; about 500 kN), while the length on the end face side along the folding line of the bending process of the plate material (for example, spcc) W is long. Deformation of the hull form is surely within the allowable range when the pressing force necessary for simultaneously pressing a portion less than 1500 mm using the first to third pressing dies 137A to 137C and 139A to 139F, that is, bending. It is assumed that the pressing force necessary to achieve the maximum pressure is 60 t, the maximum pressing force being greater than 50 t.
  • the first pressing mold 137A is selected, and only the first pressing mold 137A (including the pressing molds 139A to 139F) is used to press the 500 mm portion on one end side of the plate W with a force of about 20 t.
  • the second pressing die 137B is selected, and the central 500 mm portion of the plate material W is pressed with a force of about 20 t with only the second pressing die 137B (including the pressing dies 139A to 139F).
  • the third pressing die 137C is selected, and only the third pressing die 137C (including the pressing dies 139A to 139F) is used to move the 500 mm portion on the other end side of the plate member W with a force of about 20 t. Press.
  • the pressing die 137 moves to the rear side, as shown in FIG. 20, the pressing die 137 is positioned obliquely below the punch side member 109 (punch 115), and in this state, the upper pressing die 127 is lowered. Also, the plate material W is not sandwiched by the upper pressing die 127 and the partial pressing die 137, and the plate material W is not pressed.
  • each pressing mold 137A shown in FIG. 15 is divided into a plurality (for example, three), each pressing mold 137A is integrally connected by a connecting member 141 (141A), such as a pneumatic cylinder (not shown). The actuator moves in the front-rear direction.
  • each pressing die 137B is also connected by a connecting member 141 (141B), and moves in the front-rear direction.
  • Each pressing die 137C is also connected by a connecting member 141 (141C) and moves in the front-rear direction.
  • a part of the pressing dies 137, 139 (butting support) 139 (139A to 139F; see FIG. 15) is driven by a back gauge 143 (see FIGS. 13 and 14) of the bending apparatus 101. It is configured to be moved and positioned in the front-rear direction.
  • the pressing die 139 is provided with an abutting (abutting bar) 145 against which the plate material W is abutted (abutted) (see FIG. 18 and the like). By pressing the end surface of the plate material W against the abutment 145 and positioning the plate material W, the pressing width of the plate material W by the end surface pressing portion 105 (dimension L1 in FIG. 19) is determined.
  • the bending apparatus 101 is provided with two back gauges 143, for example. Each of these back gauges 143 is moved and positioned separately.
  • At least two butting supports (pressing molds) 139 (for example, six as shown in FIG. 15) are provided.
  • Each of the two back gauges 143 engages and integrates with each of the two butting support bodies 139 of the plurality of butting support bodies 139.
  • the selection of the butting support 139 with which the back gauge 143 is engaged depends on the dimension of the plate material W, that is, the length of the end portion of the plate material W in the extending direction of the bending line bent by the punch 115 and the die 121. It is determined appropriately.
  • Each of the two butting supports 139 engaged with each of the two back gauges 143 is separately moved and positioned together with the back gauge 143 in the front-rear direction.
  • the support 139, the abutment 145, the back gauge 143, and the like constitute a pressing width adjusting mechanism in the bending apparatus 101.
  • the pressing die (abutting support; contact bar support) is similarly positioned with the back gauge.
  • the abutment 145 can freely move in and out of a surface (plate material pressing surface) 149 that presses the plate material W of the abutment support 139.
  • the abutment 145 is urged by an elastic body such as a compression coil spring 151 so as to protrude upward from the plate material pressing surface 149.
  • an elastic body such as a compression coil spring 151
  • the abutment 145 protrudes upward from the plate material pressing surface 149, and when the plate material W is pressed by the upper end surface pressing die 127 and the lower end surface pressing die 135, 145 moves in a direction (downward) that is pressed by the upper end surface pressing die 127 and buried in the abutting support (a pressing die constituting the lower end surface pressing die 135) 139.
  • the bending apparatus 101 (including the bending apparatus 1 according to the first embodiment) is provided with a hemming section 153 for hemming the plate material W (see FIGS. 22 and 23).
  • the hemming process part 153 is comprised by the end surface press part 105 (it serves as the end surface press part 105).
  • a die installation body (die installation body) 155 is configured by the die side member 111 having the die holding body 125 and the upper pressing mold 127, the base frame 123, the lower pressing mold 135, and the like.
  • the mold installation body 155 is a bending apparatus 101 (the bending apparatus 1 according to the first embodiment) that performs bending or the like on the plate material W using the punch 115 and the die 121. Included) and used.
  • the mold installation body 155 is provided with a mold installation unit 157, an end face pressing unit 105, and a hemming processing unit 153.
  • the die 121 is installed in the mold installation unit 157.
  • the end surface pressing portion 105 presses the end surface side portion along the bend line of the plate material W before being bent by the punch 115 and the die 121 installed in the mold installation portion 157. It has become so.
  • the end surface pressing portion 105 is divided into a plurality of pressing dies 137 and 139 in the extending direction of the bending line of the bending process of the plate material W, and is divided when the end surface side portion along the bending line of the plate material W is pressed.
  • Each pressing die 137 is configured to be selectively used.
  • the pressing die 139 provided with the abutment 145 is moved and positioned by the back gauge 143 of the bending apparatus 101 as described above.
  • FIG. 15 three mold installation bodies 155A, 155B, and 155C are connected in the longitudinal direction.
  • a mold installation body 155 as shown in FIG. 15 is installed in the bending apparatus 101.
  • one horizontal direction (left-right direction) is defined as the X-axis direction
  • one other horizontal direction (front-rear direction) orthogonal to the X-axis direction is defined as the Y-axis direction
  • a direction (vertical direction) perpendicular to the direction is defined as a Z-axis direction.
  • a lower table 159 is integrally provided below the front side of the apparatus base (frame) 107 of the bending apparatus 101.
  • a mold installation body 155 (155A, 155B, 155C) is connected in order in the longitudinal direction (see FIGS. 13 and 15) and is provided to extend in the X-axis direction.
  • the die 121 (121A, 121B, 121C) is integrally installed above each of the mold installation bodies 155 (155A, 155B, 155C).
  • the dies 121A, 121B, and 121C have the same specifications, and are connected in order in the longitudinal direction (see FIG. 13) and extend long in the X-axis direction.
  • An upper table 119 is provided on the upper front side of the device base 107.
  • the upper table 119 is movable in the Z-axis direction with respect to the apparatus base 107.
  • the punch 115 (115A, 115B, 115C) is integrally installed on the lower surface of the upper table 119 via the punch holder 117.
  • the punches 115A, 115B, and 115C have the same specifications, are connected in order in the longitudinal direction (see FIG. 13), and extend long in the X-axis direction.
  • Each die 121A, 121B, 121C installed on the lower table 159 is opposed to each punch 115A, 115B, 115C installed on the upper table 119.
  • the bending device 101 (the bending device 1) is provided with a control device 161. Then, under the control of the control device 161, the upper table 119 is moved and positioned in the Z-axis direction by the hydraulic cylinder 163 of the bending drive device 113.
  • the plate material W is bent by the bending portion 103, the end surface of the plate material W is pressed by the end surface pressing portion 105, and the hemming processing of the plate material W by the hemming portion 153 is performed.
  • the back gauge 143 is provided at the central portion of the device base 107 in the Z-axis direction and at the rear side of the lower table 159 in the X-axis direction, and is controlled by the control device 161 with respect to the device base 107. Thus, it is moved and positioned in the X-axis direction, the Y-axis direction, and the Z-axis direction.
  • the mold installation body 155A will be described in detail. Since the mold installation bodies 155B and 155C are configured similarly to the mold installation body 155A, description of the mold installation bodies 155B and 155C is omitted.
  • the mold installation body 155 ⁇ / b> A includes a base frame 123, a die holding body 125, an upper pressing mold 127, a cylinder 129, a lower pressing mold 135 (pressing molds 137 and 139), and a connecting member 141.
  • Abutting 145 is configured.
  • the base frame 123 is formed in an elongated rectangular parallelepiped shape. More specifically, a cross section of the base frame 123 (a cross section taken along a plane orthogonal to the X-axis direction, which is the longitudinal direction) includes a rectangular lower base 165 and a rectangular upper engaging portion 167.
  • the value of the width (dimension in the Y-axis direction) of the upper engaging portion 167 is smaller than the value of the width (dimension in the Y-axis direction) of the lower base portion 165.
  • the upper engaging portion 167 is located in the middle portion of the lower base portion 165 in the Y-axis direction, and protrudes upward from the upper end of the lower base portion 165 in the Z-axis direction.
  • the die holding body 125 is also formed in an elongated rectangular parallelepiped shape having the same length as the base frame 123, and is located at the same position as the base frame 123 in the X-axis direction (longitudinal direction). More specifically, a cross section of the die holding body 125 (a cross section by a plane orthogonal to the longitudinal direction) includes a rectangular upper main body 169 and a rectangular lower protrusion 171.
  • the value of the width (dimension in the Y-axis direction) of the lower protrusion 171 is set to be smaller than the value of the width (dimension in the Y-axis direction) of the upper main body 169.
  • the lower protrusion 171 is located at the rear end of the upper main body 169 in the Y-axis direction, and protrudes downward from the lower end of the upper main body 169 in the Z-axis direction.
  • the die holder 125 is formed with a die installation recess (die installation groove) 173.
  • the die installation recess 173 is formed over the entire length of the die holder 125 in the longitudinal direction (X-axis direction).
  • the die installation recess 173 has a width value smaller than the width value of the upper body portion 169 and a depth (dimension in the Z-axis direction) value of the upper body portion 169. It is smaller than the height (dimension in the Z-axis direction).
  • the die installation recess 173 is located in the middle of the upper body 169 in the Y-axis direction, and is recessed downward from the upper end of the upper body 169 in the Z-axis direction.
  • the lower part of the die 121 enters the concave part 173 for die installation, and is integrally installed on the die holding body 125.
  • the length (dimension in the X direction) of the die 121 is the same as that of the base frame 123 and is positioned at the same position as the base frame 123 in the X axis direction (longitudinal direction).
  • the upper pressing die 127 is also formed in an elongated rectangular parallelepiped shape with the same length as the base frame 123, and is located at the same position as the base frame 123 in the X-axis direction (longitudinal direction). More specifically, the upper pressing die 127 has a cross section (a cross section taken along a plane orthogonal to the longitudinal direction), which is provided with a rectangular upper concave portion 175 and a triangular lower side surface taking portion 177, and is generally L-shaped.
  • the upper concave portion 175 and the lower side surface taking portion 177 are formed over the entire length of the upper pressing die 127 in the longitudinal direction (X-axis direction).
  • the upper concave portion 175 has a width value smaller than that of the upper pressing die 127 and a depth (dimension in the Z-axis direction) having a height value of the upper pressing die 127. It is smaller than the value of (dimension in the Z-axis direction).
  • the upper side recessed part 175 is provided in the upper corner
  • the lower side surface taking part 177 is provided at a corner part on the front lower side of the upper pressing die 127.
  • the die holder 125 In the upper pressing die 127, two surfaces (sides) constituting the front lower corner portion of the upper body portion 169 of the die holding body 125 enter the upper recessed portion 175, and two surfaces of the upper recessed portion 175, that is, X Each of the plane extending in the axial direction and the Y-axis direction, and the plane extending in the X-axis direction and the Z-axis direction are in surface contact with the two front lower surfaces of the upper body 169. In this manner, the die holder 125 is integrally provided.
  • an elongated rectangular parallelepiped rectangular groove 179 is formed in the die holding body 125, the upper pressing die 127, and the lower central portion.
  • the upper engaging portion 167 of the base frame 123 enters the groove 179 and the base frame 123 engages with the die holding body 125 and the upper pressing die 127, so that the die holding body 125 is engaged with the base frame 123. And the upper pressing die 127 make a sliding pair, and the die holding body 125 and the upper pressing die 127 move in the Z-axis direction with respect to the base frame 123.
  • the width (dimension in the Y-axis direction) of the groove 179 is set to be slightly larger than the width (dimension in the Y-axis direction) of the upper engagement portion 167 of the base frame 123.
  • the cylinder 129 includes a cylindrical cylinder body 181, a piston 183, and a piston rod 185.
  • the cylinder 129 is provided at the center of the base frame 123 in the Y-axis direction, the cylinder main body 181 and the piston 183 are positioned below, and the piston rod 185 protrudes upward in the Z-axis direction.
  • the distal end portion of the piston rod 185 protrudes from the upper end of the base frame 123 (upper engagement portion 167) and is integrally engaged with the upper body portion 169 of the die holding body 125.
  • the cylinder body 181 is integrally provided on the base frame 123.
  • the pressing die 137 (137A) of the lower pressing die 135 is formed in an elongated rectangular parallelepiped shape. More specifically, as shown in FIG. 17 and the like, the cross section of the pressing die 137 (a cross section by a plane orthogonal to the longitudinal direction) is formed in a substantially rectangular shape with a notch 187 provided on the upper front side.
  • a recess 189 is provided at the upper front of the lower base 165 of the base frame 123.
  • the concave portion 189 is formed in a rectangular shape, and is provided at the corner of the upper front portion of the lower base portion 165 of the base frame 123.
  • the pressing die 137 enters the recess 189, and the lower surface of the pressing die 137 and the bottom surface of the recess 189 are in surface contact with each other.
  • the pressing die 137 moves in the Y-axis direction with respect to the base frame 123 by an actuator such as a pneumatic cylinder (not shown).
  • the pressing die 137 is located at the front moving end, and in FIG. 20, the pressing die 137 is located at the rear moving end. .
  • the pressing die 139 (139A, 139B) of the lower pressing die 135 has a cross section (a cross section by a plane orthogonal to the X-axis direction) of the lower horizontal portion 191 and the upper standing portion 193. It is formed in the L shape provided with.
  • the height dimension (dimension in the Z-axis direction) of the lower horizontal portion 191 matches the height dimension of the pressing die 137. Further, a notch 195 similar to the notch 187 is provided in the upper front portion of the lower horizontal portion 191.
  • a through hole 197 penetrating the base frame 123 in the front-rear direction is provided in the upper part of the lower base 165 of the base frame 123 and the lower part of the upper engaging part 167.
  • the height position of the bottom surface of the through hole 197 coincides with the height position of the bottom surface of the recess 189.
  • the pressing die 139 installed in the through hole 197 forms a sliding pair with its lower surface in surface contact with the bottom surface of the through hole 197.
  • the position of the upper surface 203 of the pressing mold 137 and the position of the upper surface 201 of the lower horizontal portion 191 of the pressing mold 139 are mutually in the Z-axis direction. It matches.
  • the upper standing part 193 of the pressing die 139 is integrally engaged with the back gauge 143, so that the pressing die 139 can be moved and positioned in the Y-axis direction.
  • Abutting 145 is provided on the lower horizontal portion 191 of the pressing mold 139.
  • the abutment 145 moves in the up-down direction with respect to the lower horizontal portion 191, and can protrude and retract with respect to the upper surface 201 of the lower horizontal portion 191.
  • the abutment 145 is biased upward by the compression coil spring 151.
  • the abutment 145 protrudes from the upper surface 201 of the lower horizontal portion 191 (see FIG. 18 and the like).
  • the punch 115 is pushed downward by the upper pressing die 127, the abutment 145 moves downward (see FIG. 19 and the like).
  • the pressing mold 139 (139A to 139F) is positioned in the Y-axis direction as shown in FIG. That is, the abutment 145 is positioned rearward by an appropriate dimension L1 from the front end of the lower surface 199 of the upper pressing die 127.
  • the dimension L1 is the pressing width of the plate material W.
  • the pressing die 139 When hemming is performed, as shown in FIG. 21, the pressing die 139 is located at the rear end. At this time, the abutment 145 enters the through hole 197 of the base frame 123.
  • a part of the upper surface 201 of the lower horizontal portion 191 of the pressing mold 139 is placed on the upper side in order to sandwich and press the plate material W. It faces the lower surface 199 of the pressing die 127.
  • the pressing mold 137A, the pressing mold 139A, the pressing mold 137A, the pressing mold 139B, and the pressing mold 137A are arranged in this order from left to right in the X-axis direction.
  • the mold installation body 155A, the mold installation body 155B, and the mold installation body 155C are arranged in this order from left to right in the X-axis direction, Toward the pressing mold 137A, pressing mold 139A, pressing mold 137A, pressing mold 139B, pressing mold 137A, pressing mold 137B, pressing mold 139C, pressing mold 137B, pressing mold 139D, pressing mold 137B, pressing mold 137C, pressing mold 139E, the pressing die 137C, the pressing die 139F, and the pressing die 137C are arranged in this order (see FIG. 15).
  • a guide plate for guiding the plate material W.
  • the guide plate 205 is provided integrally with the base frame 123, for example, via a connecting member 141.
  • an engaging pin 207 protrudes from the lower end of the base frame 123.
  • the base frame 123 (die mounting body 155) is integrally installed on the lower table 159 on the upper surface of the lower table 159 by the engaging pins 207 and fasteners such as bolts (not shown).
  • the bending portion 103 is formed by the punch 115 and the die 121 installed on the mold installation body 155, and the upper pressing mold 127 (lower surface 199) of the mold installation body 155 is formed. ) And the lower pressing die 135 (upper surfaces 201 and 203) of the mold installation body 155 form an end surface pressing portion 105 and a hemming processing portion 153.
  • the length of the mold installation body 155A, the mold installation body 155B, and the mold installation body 155C in the X-axis direction is 1500 mm (500 mm ⁇ 3). That is, it is assumed that the plate material W can be bent once by the die 121 and the punch 115 over a maximum length of 1500 mm. In addition, the length of the bending line of the plate material W is slightly shorter than 1500 mm.
  • the punch 115 is raised, the die holding body 125 and the upper pressing die 127 are positioned at the rising end, and the pressing die 139 of the mold installation body 155 ⁇ / b> A.
  • the pressing mold 139 of the mold installation body 155B and the pressing mold 139 of the mold installation body 155C are positioned as shown in FIG. 18, and the pressing mold 137A of the mold installation body 155A is shown in FIG.
  • the pressing mold 137B of the mold installation body 155B and the pressing mold 137C of the mold installation body 155C are positioned on the rear side as shown in FIG.
  • the plate material W is installed on the mold installation body 155 (155A to 155C).
  • the mold installation body 155 (155A to 155C) and the position of the plate material W coincide with each other in the X-axis direction, and the plate material W is placed on the abutment 145 as shown in FIGS. Comes into contact with each other and the plate material W is positioned in the Y-axis direction.
  • the punch 115 is lowered, and the upper pressing mold 127 of the mold installation body 155A and the lower pressing mold 135 (pressing molds 137A, 139A, 139C) of the mold installation body 155A are arranged in the length direction of the plate material W. One end is pressed with a width L1 (see FIG. 19).
  • the same pressing is performed by the pressing dies 139E and 139F.
  • the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the pressing mold 137A of the mold installation body 155A is positioned on the rear side as shown in FIG. 20, and the mold installation body 155B.
  • the pressing die 137B is positioned on the front side as shown in FIG.
  • the punch 115 is lowered and an upper pressing mold 127 of the mold installation body 155B and a lower pressing mold 135 (pressing molds 137B, 139C, 139D) of the mold installation body 155B in the length direction of the plate material W.
  • the center portion is pressed with a width L1 (see FIG. 19).
  • the same pressing is performed by the pressing dies 139E and 139F.
  • the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the pressing mold 137 of the mold installation body 155B is positioned on the rear side as shown in FIG.
  • the pressing die 137 is positioned on the front side as shown in FIG.
  • the punch 115 is lowered, and the upper pressing mold 127 of the mold installation body 155C and the lower pressing mold 135 (pressing molds 137C, 139E, 139F) of the mold installation body 155C are used in the other longitudinal direction of the plate material W.
  • the end is pressed with a width L1 (see FIG. 19).
  • the same pressing is performed by the pressing dies 139C and 139D.
  • the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the plate material W is carried out from the mold installation body 155, and as shown in FIG. 24, the die holding body 125 and the upper pressing mold 127 is positioned at the rising end.
  • the space between the lower surface 199 of the upper pressing die 127 and the upper surfaces 201 and 203 of the lower pressing die 135 is extremely small. There is a slight gap (a gap of about 0.2 mm).
  • the die holder 125 and the upper pressing die 127 are positioned at the lower end, the upper surface of the upper engaging portion 167 of the base frame 123 and the lower surface of the upper main body portion 169 of the die holder 125 are mutually connected. Is in surface contact.
  • the plate material W is placed on the die 121, the punch 115 is lowered, and the plate material W is bent by a single operation over a length of approximately 1500 mm.
  • the punch 115 is raised, the die holding body 125 and the upper pressing die 127 are positioned at the rising end, the pressing die 139 of the die installation body 155A, The pressing mold 139 of the mold installation body 155B and the pressing mold 139 of the mold installation body 155C are located at the rear end, and the pressing mold 137A of the mold installation body 155A and the pressing mold 137B of the mold installation body 155B. And the pressing die 137C of the mold installation body 155C are located on the front side.
  • the punch 115 is lowered and the plate material W is bent. This bending is performed at once over a length of approximately 1500 mm.
  • the bending angle is about 30 °.
  • the punch 115 is raised, the die holder 125 and the upper pressing die 127 are positioned at the rising end, and the portion of the plate material W that has been bent by about 30 ° is replaced with the upper pressing die 127 and the lower pressing die 135. (See FIG. 22).
  • the punch 115 is lowered, and a hemming process is performed by sandwiching a portion of the plate material W that has been bent at about 30 ° by the upper pressing mold 127 and the lower pressing mold 135 (see FIG. 23).
  • the position of the left end of the plate material W is constant in the state shown in FIG. 22 and the state shown in FIG. 23, but the moment generated in the mold installation body 155 is reduced.
  • the position of the abutment 145 may be changed as appropriate, and the position of the left end of the plate material W may be changed by abutting the plate material W against this (for example, see Japanese Patent Application Laid-Open No. 2003-181546).
  • the three punches 115 have the same specification, and the three dies 121 have the same specification, but the punch 115 and the die 121 may have different specifications. However, it is assumed that the mold heights (pass lines of the plate material W) are equal to each other.
  • the plate material W may be hemmed at the mold installation body 155A, and the plate material W may be pressed and bent at the mold installation body 155B and the mold installation body 155C.
  • each pressing die 137, 139 can be selectively pressed when pressing the plate material W, so that the maximum pressing force in the bending driving apparatus 113 is increased. Therefore, a sufficient pressing force can be applied to the plate material W, and the amount of boat warp or boat warp that occurs in the plate material W during bending can be easily kept within an allowable value. Accordingly, a sufficient pressing force can be applied to the plate material W without using a large-sized bending apparatus having a large maximum thrust value.
  • each of the pressing dies 137 and 139 is configured to make the above selection by moving in the front-rear direction, the plate material is pressed with a simple configuration. A pressing type can be selected.
  • plate material W pressed by simple structure using the back gauge 143, without using a mechanism and an actuator separately. Can be set.
  • hemming process part 153 is comprised by the end surface press part 105, hemming process can be given to the board
  • a pressing mold 303 that does not bend the plate material W is used to press the end portion of the sheet material W ( Pressing to adjust the residual stress generated by cutting; pressing to reduce warpage when bending the plate material W) and hemming (hemming is performed only when necessary).
  • the points are different from the bending apparatus 1 according to the first embodiment and the bending apparatus 101 according to the second embodiment, and the other points are configured in the same manner as the bending apparatuses 1 and 101. It operates in the same way and produces the same effect.
  • a plate material processing apparatus (processing apparatus) 301 includes, for example, an apparatus base 302 (see FIG. 30B) similar to the apparatus base 107 shown in FIG. And a receiving portion (receiving means) 307 for receiving the plate material W pressed by the pressing portion 305 (FIGS. 26, 27, and 27). 29 etc.).
  • the processing apparatus 301 includes an end face pressing upper mold 309, an end face pressing lower mold 311, an end face pressing part 313, and an end face pressing width adjusting part (end face pressing width adjusting mechanism) 315.
  • the end face pressing upper die 309 is configured to receive a pressing force from the pressurizing unit 305.
  • the pressurizing unit 305 includes an actuator such as a hydraulic cylinder (a hydraulic cylinder similar to the hydraulic cylinder 163 of the processing apparatus 101 according to the second embodiment shown in FIG. 13 and the like) provided on the upper side of the apparatus base 302.
  • the receiving part 307 is configured by a lower part of the device base 302.
  • the end face pressing lower mold 311 is provided on the receiving portion 307 side (lower side) facing the end face pressing upper mold 309, and the end face of the plate material W is inserted between the end face pressing upper mold 309.
  • the end surface pressing upper die 309 is moved relatively to the end surface pressing lower die 311 side by the pressing force of the pressing portion 309 and the end surface pressing upper die 309 is lowered, so that the plate material W is processed ( One end surface 319 along the folding curve (before bending) is pressed (pressurized) (see FIG. 27, FIG. 30, etc.).
  • the end surface pressing upper die 309 and the end surface pressing lower die 311 are arranged between the end surface pressing upper die 309 and the end surface pressing lower die 311, that is, between the pressurizing portion 305 and the receiving portion 307.
  • the plate material W is sandwiched and the end of the plate material W is pressed in the thickness direction.
  • the end surface pressing width adjusting unit 315 sets a pressing width (dimension in the Y-axis direction) at the end surface 310 of the plate material W when the end surface pressing unit 313 presses the plate material W.
  • the abutting surface (abutted surface) 319 of one end surface of the plate material W is more end surface than the pressing center (pressing center) 317 of the pressing force of the pressurizing unit 305 to the end surface pressing upper mold 309.
  • the front side (C-shaped device) in the insertion direction of the plate material W between the pressing upper mold 309 and the end surface pressing lower mold 311 (the direction from left to right in FIG.
  • the abutted surface 319 is positioned slightly in front of the pressing center 317 in the Y-axis direction, and the entire plate W is positioned in front of the abutting surface 319 in the Y-axis direction.
  • the end face pressing lower mold 311 has a plurality of pieces capable of pressing the end portion of the plate material W with the end face pressing upper mold 309 in the X-axis direction in the same manner as the processing apparatus 101 according to the second embodiment.
  • the pressing mold 321 (321A to 321I) is divided (see FIG. 26 and the like).
  • Each of these divided pressing dies 321 is configured to be selectively used (so that it can be selectively pressed) when pressing the end surface 319 of the plate W.
  • each of the pressing dies 321 moves in the direction (Y-axis direction) intersecting the driving direction (Z-axis direction) of the end surface pressing upper mold 309 toward the end surface pressing lower mold 311 side. It is configured to be made.
  • the end face pressing width adjustment unit 315 is a part of the pressing dies 321 and is in the direction intersecting with the back gauge (not shown in FIGS. 26 to 30) of the processing device 301 (Y-axis direction). And a pressing die (321B, 321D, 321F, 321H) that is moved and positioned, and an abutting (contact bar) 323 provided on the pressing die against which the plate material W is abutted.
  • the pressing molds 321A, 321C, 321E, 321G, and 321I are moved in the Y-axis direction by an actuator such as a pneumatic cylinder (not shown).
  • abutment 323 is biased upward by the compression coil 325 spring in the same manner as in the processing apparatus 101 according to the second embodiment (see FIG. 29).
  • the processing device 301 is provided with a hemming processing portion 327 for hemming the end face of the plate material W (see FIG. 28).
  • the hemming part 327 is configured by an end face pressing part 313.
  • the end surface pressing upper die 309, the end surface pressing lower die 311, the end surface pressing portion 313, and the end surface pressing width adjusting portion 315 are installed in the processing apparatus (for example, press brake) 301.
  • a pressing mold 303 to be used is formed.
  • the processing apparatus 301 performs a bending process on the plate material W using a punch, a die, and a pressure unit 305.
  • the pressing material 303 is used to press the plate material W without bending the plate material W
  • the punch and the die are not used.
  • an end face pressing upper die 309 having a flat lower surface as shown in FIG. 26 or the like is used, and an end face pressing lower die 311 having a flat upper surface is used instead of the die.
  • the end surface pressing lower mold 311 is divided into a plurality of pressing molds 321 (321A to 321I) in the X-axis direction, and the end surface 319 side along the bending line of the plate material W is provided.
  • each of the divided pressing molds 321 can be selectively used.
  • Each of the pressing molds 321 is configured to make the above selection by moving in the Y-axis direction.
  • a part of the pressing dies, that is, the pressing dies provided with the butting 323 are configured to be moved and positioned in the Y-axis direction by the back gauge of the processing device 301.
  • the pressing mold 303 is provided with a hemming processing portion 327, and the hemming processing portion 327 is constituted by an end surface pressing portion 313.
  • the processing device 301 when the plate material W is pressed by the end surface pressing portion 313, the end surface 319 of the plate material W and the entire plate material W are located on the opposite side of the C-shaped device base 302. (Refer FIG. 30)
  • plate material W can be performed reliably.
  • the plate material W is positioned on the opposite side of the C-shaped device base 302 with respect to the center 317 of the press.
  • the device base 302 or the like is not a perfect rigid body, a moment (see an arrow MT in FIG. 30) is generated in the end surface pressing upper die 309 (end surface pressing lower die 311), and the device base 302 or the like has very little elasticity. Deformation (deflection) occurs, and the end surface pressing upper mold 309 (end surface pressing lower mold 311) is slightly inclined (see FIG. 30B). In FIG. 30B, the inclination of the end face pressing upper mold 309 is exaggerated.
  • the maximum pressing force is applied to the end 319 of the plate material W larger than other portions. Accordingly, the plate material W can be pressed accurately and reliably, and the amount of boat warpage that occurs when the plate material W is bent can be reliably reduced.
  • the abutment 323 provided in each of the pressing dies 321B, 321D, 321F, 321H does not move in the Z-axis direction, and is provided integrally with each of the pressing dies 321B, 321D, 321F, 321H.
  • the height of the abutment 323 may be constant.
  • the end pressing upper mold 309 is provided with a recess (not shown) into which the abutting 323 enters.
  • the value of the thickness of the plate material W is larger than the value of the protrusion height of the abutment 323, it is not necessary to provide the end face pressing upper die 309 with a recess into which the abutment 323 enters.
  • each of the pressing dies 321B, 321D, 321F, 321H may be fixed in the Y-axis direction.
  • At least one of the mold installation bodies 121A, 121B, 121C shown in FIG. 13 may be replaced with the pressing mold 303. In this case, it is assumed that the pass lines (die height) are equal.
  • a bending press portion for bending a plate material and an end surface press portion for pressing the end surface of the plate material to suppress warpage are provided on one apparatus base. Therefore, it is possible to press and bend the end face of the plate material with a single device, and it is easy to handle the plate material, and workability can be improved.
  • US designation This international patent application relates to the designation of the United States of America with respect to Japanese Patent Application No. 2011-242501 filed on November 4, 2011 and Japanese Patent Application No. 2012-226724 filed on October 12, 2012. The benefit of the priority right based on Patent Act Section 119 (a) is incorporated and the disclosure content is cited.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

A plate material processing device (301) is provided with a pressurizing unit (305) for pressurizing a plate material (W), and a receiving unit (307) for receiving the plate material pressurized by the pressurizing unit, and comprises: an end face pressing upper mold (309) that receives pressurization force from the pressurizing unit; an end face pressing lower mold (311) that is provided on the receiving unit side to face the end face pressing upper mold, an end face (319) of the plate material being inserted between the end face pressing upper mold and the end face pressing lower mold; an end face pressing unit (313) that presses the end face of the plate material by relatively moving the end face pressing upper mold to the end face pressing lower mold side; and an end face pressing width adjustment unit (315) that sets the pressing width of the end face of the plate material.

Description

板材の加工装置、押圧金型および金型設置体Plate material processing apparatus, pressing mold and mold installation body
　本発明は、金属板からなる板材を加工する加工装置、押圧金型および金型設置体に関し、特に板材を折り曲げ加工することに代えてもしくは加えて、板材の端部を押圧等する機能を備えた板材の加工装置、押圧金型および金型設置体に関する。 The present invention relates to a processing apparatus, a pressing die, and a mold installation body for processing a plate material made of a metal plate, and in particular, has a function of pressing an end portion of the plate material instead of or in addition to bending the plate material. The present invention relates to a plate material processing apparatus, a pressing mold, and a mold installation body.
　金属板からなる板材をレーザ切断、シャーリング切断等によって切断した後、折り曲げ加工すると、図１２に示すように板材Ｗに舟反り等の反りＳが発生し易い。この反りＳは、幅寸法が比較的小さく、折り曲げた稜線の長さが比較的長い板材Ｗを折り曲げ加工したときに発生することが知られている。 When a plate material made of a metal plate is cut by laser cutting, shearing cutting or the like and then bent, warpage S such as boat warp is likely to occur in the plate material W as shown in FIG. It is known that the warp S occurs when a plate material W having a relatively small width dimension and a relatively long ridgeline is bent.
　このような板材の反りを抑制するため、切断した板材をレベラに通して曲げ加工を行ったり、プレス機で曲げ加工した後に、板材を逆さに置いて抑えて反りを修正することがなされる。しかしながら、レベラを用いる場合には、切断と曲げ加工の工程の間に種々の大きさの板材に対応できるレベラを準備する必要がある問題を有している。プレス機による曲げ加工の後に反りを修正する場合は、修正が難しい問題を有している。 In order to suppress such warpage of the plate material, the cut plate material is bent through a leveler, or after being bent by a press machine, the plate material is placed upside down to suppress the warpage. However, when a leveler is used, there is a problem that it is necessary to prepare a leveler that can handle various sizes of plate materials between the cutting and bending processes. When the warp is corrected after bending by a press machine, there is a problem that correction is difficult.
　たとえば、日本国特許公開公報特開２００５－１７７７９０号（特許文献１）には、板材へのＵ字曲げとは反対方向への曲げを付与する形状となるように金型を形成し、曲げ戻しを利用した曲げ加工を２段階に分けて行うことにより反りを低減させることが記載される。特許文献２には、Ｚ形材やハットチャンネル材に対して金型によって曲げを行った後、曲げ戻しする２段階の加工によって反りを低減させることが記載される。 For example, in Japanese Patent Application Laid-Open No. 2005-177790 (Patent Document 1), a mold is formed so as to give a bending in a direction opposite to the U-shaped bending to a plate material, and then bending back is performed. It is described that warping is reduced by performing bending using two steps in two stages. Patent Document 2 describes that warping is reduced by a two-stage process in which a Z-shaped material or a hat channel material is bent with a mold and then bent back.
　しかしながら、特許文献１によれば、特殊な金型が必要となるばかりでなく、板材の寸法に対してフレキシブルに対応することができず、しかも加工後の板材の形状が複雑となる問題を有している。 However, according to Patent Document 1, not only a special mold is required, but also the size of the plate material cannot be dealt with flexibly, and the shape of the plate material after processing becomes complicated. is doing.
　また、日本国特許公開公報特開２００６－１５４０４号（特許文献２）によれば、曲げ加工を２回に分けて行うため、加工に長時間を必要とし、しかも特殊な形状に対応できない問題を有している。 Further, according to Japanese Patent Publication No. 2006-15404 (Patent Document 2), since bending is performed in two steps, a long time is required for the processing, and a problem that a special shape cannot be accommodated. Have.
　これに対し発明者らは、Ｖ曲げ等の折り曲げ加工における長手反りのメカニズムについて研究を行って折り曲げ加工における反りの発生とその抑制について明らかにし、特願２０１１－５６４９号および特願２０１１－５６４９号を基礎とした国内優先権主張出願である特願２０１１－２４２３７２号にて既に提案している。これによれば、切断によって板材に生じた残留応力を板材の切断縁に圧力を加えることによって増減させて反りを抑制することが可能となる。 On the other hand, the inventors have studied the mechanism of longitudinal warping in bending work such as V-bending to clarify the occurrence of warpage in the bending work and its suppression, and Japanese Patent Application Nos. 2011-5649 and 2011-5649. Has already been proposed in Japanese Patent Application No. 2011-242372, which is a domestic priority claim application based on the above. According to this, it is possible to suppress warpage by increasing or decreasing the residual stress generated in the plate material by cutting by applying pressure to the cutting edge of the plate material.
　ところで、発明者らの提案に基づいて板材を折り曲げ加工する場合には、板材の折曲加工機に加えて板材の切断縁を押圧する押圧加工機を別個に用意し、押圧加工機によって板材の端面を押圧した後、板材を折曲加工機まで移動させる必要がある。このため板材の取り回しが面倒となり、作業に手間がかかる問題がある。 By the way, in the case of bending a plate material based on the proposal of the inventors, in addition to the plate material bending machine, a pressing machine that presses the cutting edge of the plate material is prepared separately. After pressing the end face, it is necessary to move the plate material to the bending machine. For this reason, the handling of the plate material becomes troublesome, and there is a problem that work is troublesome.
　これに対し、一台の折曲加工機によって板材の端面の押圧と、板材の曲げ加工を行おうとすると、板材の端面を押圧する金型と、板材を折り曲げる金型とを板材の加工の際に逐一交換する必要が生じる、このため作業工程が増加すると共に板材の取り回しが面倒となる問題が発生する。 On the other hand, when pressing the end face of the plate material and bending the plate material with a single bending machine, the mold for pressing the end face of the plate material and the mold for bending the plate material are processed at the time of processing the plate material. Therefore, there is a problem in that the number of work steps increases and the handling of the plate material becomes troublesome.
　また、折曲加工機を用いて、板材の端面をこの厚さ方向で所定の幅にわたって押圧（板材を曲げ加工するときの反りを少なくするための押圧）するとき、押圧の態様によっては、板材の押圧される部位が正確に押圧されないおそれが生じるという問題がある。 Further, when a bending machine is used to press the end face of the plate over a predetermined width in this thickness direction (press for reducing warpage when bending the plate), depending on the pressing mode, the plate There is a problem that a portion to be pressed may not be pressed accurately.
　本発明によれば、一台の装置で板材の端面の押圧と曲げ加工を行うことを可能とするばかりでなく、板材の取り回しが容易であり、作業性を向上させることが可能な板材の加工装置、押圧金型および金型設置体（加工装置に設置され金型を支持する金型設置体）を提供することができる。 According to the present invention, it is possible not only to press and bend the end face of a plate material with a single device, but also to easily handle the plate material and to improve workability. An apparatus, a pressing mold, and a mold installation body (a mold installation body that is installed in a processing apparatus and supports a mold) can be provided.
　さらに、本発明によれば、板材を曲げ加工するときの反りを少なくするためになされる板材の押圧を正確に行うことができる加工装置、押圧金型および金型設置体を提供することができる。 Furthermore, according to the present invention, it is possible to provide a processing apparatus, a pressing die, and a mold installation body that can accurately press a plate material to reduce warpage when bending the plate material. .
　本発明の第１の技術的側面によれば、板材を加圧する加圧部と、この加圧部で加圧される板材を受ける受け部とを備えた板材の加工装置は、前記加圧部からの加圧力を受ける端面押圧上型と、前記端面押圧上型に対向して前記受け部側に設けられ、前記端面押圧上型との間に前記板材の端面が挿入される端面押圧下型と、前記加圧部の加圧力により前記端面押圧上型を前記端面押圧下型側に相対的に移動することで、前記板材の加工前の折曲線に沿う一方の端面を押圧する端面押圧部と、前記端面押圧部で前記押圧をするときに、前記板材の一方の端面の突き当て面が、前記端面押圧上型への前記加圧部の加圧力の加圧中心よりも前記端面押圧上型と前記端面押圧下型との間への前記板材の挿入方向の手前側に位置するように、前記板材の端面の押圧幅を設定する端面押圧幅調節部とを有することを特徴とする。 According to the first technical aspect of the present invention, a plate material processing apparatus including a pressurizing unit that pressurizes a plate material and a receiving unit that receives the plate material pressed by the pressurizing unit includes the pressurizing unit. An end face pressing upper mold that receives the pressure from the end face, and an end face pressing lower mold that is provided on the receiving portion side so as to face the end face pressing upper mold and in which the end face of the plate member is inserted between the end face pressing upper mold And an end surface pressing portion that presses one end surface along the folding line before processing of the plate material by moving the end surface pressing upper die relative to the end surface pressing lower die side by the pressing force of the pressing portion. When the pressing is performed by the end surface pressing portion, the abutting surface of one end surface of the plate material is higher in the end surface pressing than the pressing center of the pressing force of the pressing portion to the end surface pressing upper mold. The plate member is positioned so as to be located on the near side in the insertion direction of the plate member between the die and the lower end surface pressing die. And having an end face pressing width adjustment unit that sets a pressing width of the surface.
　本発明の第２の技術的側面によれば、パンチとダイと加圧部とを用いて板材に曲げ加工を施す加工装置に設置されて使用される押圧金型は、前パンチを前記ダイ側に駆動する加圧部からの加圧力を受ける端面押圧上型と、前記端面押圧上型に対向して設けられ、前記端面押圧上型との間に前記板材の端面が挿入される端面押圧下型と、前記加圧部の加圧力により前記端面押圧上型を端面押圧下型側に移動することで、前記板材の加工前の折曲線に沿う一方の端面を押圧する端面押圧部と、前記端面押圧部で前記押圧をするときに、前記板材の一方の端面の突き当て面が、前記端面押圧上型への前記加圧部の加圧力の加圧中心よりも前記端面押圧上型と前記端面押圧下型との間への前記板材の挿入方向の手前側に位置するように、前記板材の端面の押圧幅を設定する端面押圧幅調節部とを有することを特徴とする。 According to the second technical aspect of the present invention, a pressing mold used in a processing apparatus for bending a plate material using a punch, a die, and a pressurizing unit uses a front punch on the die side. An end face pressing upper mold that receives pressure from a pressing unit that is driven to the end face pressing upper mold, and an end face pressing upper mold that is inserted between the end face pressing upper mold and the end face pressing upper mold. By moving the end face pressing upper mold to the end face pressing lower mold side by the pressing force of the mold and the pressing part, the end face pressing part that presses one end face along the folding line before processing of the plate material, When the pressing is performed by the end surface pressing portion, the abutting surface of one end surface of the plate member is more than the end surface pressing upper die and the pressing center of the pressing portion of the pressing portion to the end surface pressing upper die. The plate member is positioned so as to be positioned on the near side in the insertion direction of the plate member between the end surface pressing lower mold. And having an end face pressing width adjustment unit that sets a pressing width of the surface.
　本発明の第３の技術的側面によれば、パンチとダイとを用いて板材に曲げ加工を施す加工装置に設置されて使用される金型設置体は、前記ダイが設置される金型設置部と、前記パンチと前記金型設置部に設置されたダイとで曲げ加工がされる前の板材の曲げ線に沿う端面側の部位を押圧する端面押圧部とを有し、前記端面押圧部は、前記パンチと前記ダイとの加圧中心を間にして、前記加工装置の装置基台とは反対側に位置していることを特徴とする。 According to the third technical aspect of the present invention, a mold installation body used by being installed in a processing apparatus for bending a plate material using a punch and a die is a mold installation in which the die is installed. And an end surface pressing portion that presses a portion on the end surface side along the bend line of the plate material before being bent by the punch and the die installed in the mold installation portion. Is located on the opposite side to the apparatus base of the processing apparatus, with the pressing center between the punch and the die in between.
本発明の第１の実施形態の折曲加工装置の全体を示す側面図である。It is a side view showing the whole bending processing device of a 1st embodiment of the present invention. 折曲加工装置の折曲加工部を示す斜視図である。It is a perspective view which shows the bending process part of a bending processing apparatus. 折曲加工装置の折曲加工部を背面から示す斜視図である。It is a perspective view which shows the bending process part of a bending apparatus from a back surface. 端面押圧部の高さ調節機構を示す斜視図である。It is a perspective view which shows the height adjustment mechanism of an end surface press part. 高さ調節機構を示す側面図である。It is a side view which shows a height adjustment mechanism. 下側端面押圧型を省略した状態で高さ調節機構を示す斜視図である。It is a perspective view which shows a height adjustment mechanism in the state which abbreviate | omitted the lower end surface press type | mold. 高さ調節機構の作用を示す正面図である。It is a front view which shows the effect | action of a height adjustment mechanism. 押圧幅調節機構を示す側面図である。It is a side view which shows a press width adjustment mechanism. 押圧幅調節機構を示す平面図である。It is a top view which shows a press width adjustment mechanism. 押圧幅調節機構を示す斜視図である。It is a perspective view which shows a press width adjustment mechanism. 押圧幅調節機構を示す斜視図である。It is a perspective view which shows a press width adjustment mechanism. 反りが発生した折曲加工後の板材を示す斜視図である。It is a perspective view which shows the board | plate material after the bending process which the curvature generate | occur | produced. 本発明の第２の実施形態に係る折曲加工装置の全体を示す正面図である。It is a front view which shows the whole bending processing apparatus which concerns on the 2nd Embodiment of this invention. 図１３におけるＸＩＶ矢視図であって、折曲加工装置の全体を示す側面図であり、図２に対応した図である。It is a XIV arrow line view in FIG. 13, Comprising: It is a side view which shows the whole bending processing apparatus, and is a figure corresponding to FIG. カバープレートを取り去った、折曲加工装置に設置されるダイ設置体の斜視図である。It is a perspective view of the die installation body installed in the bending processing apparatus which removed the cover plate. 図１５におけるＸＶＩ－ＸＶＩ断面を示した図である。FIG. 16 is a view showing a cross section taken along line XVI-XVI in FIG. 15. 図１６を簡略化した図である。It is the figure which simplified FIG. 図１５におけるＸＶＩＩＩ－ＸＶＩＩＩ断面を簡略化して示した図である。FIG. 16 is a diagram showing a simplified XVIII-XVIII cross section in FIG. 15. 図１７の状態からダイ保持体（上部押圧型）を下降し、下部押圧型と上部押圧型とで板材の端面を挟み込み押圧している状態を示す図である。It is a figure which shows the state which descend | falls the die holding body (upper press type) from the state of FIG. 17, pinches | interposes and presses the end surface of a board | plate material with a lower press type and an upper press type. 図１７の状態から下部押圧型を後側に移動して逃がした後、ダイ保持体（上部押圧型）を下降した状態を示す図であって、板材の端面の挟み込みによる押圧がなされていない状態を示す図である。FIG. 18 is a view showing a state in which the die holding body (upper pressing die) is lowered after the lower pressing die is moved to the rear side from the state of FIG. 17, and is not pressed by clamping the end face of the plate material. FIG. 図１８の状態から突き当て（突き当て支持体）を後端まで移動した状態を示す図である。It is a figure which shows the state which moved the butting (butting support body) from the state of FIG. 18 to the rear end. 図２１の状態において、ヘミングをするための板材を下部押圧型に設置した状態を示す図である。It is a figure which shows the state which installed the board | plate material for hemming in a lower press type | mold in the state of FIG. 図２２の状態からダイ保持体（上部押圧型）を下降し、下部押圧型と上部押圧型とで板材の端面を挟み込み押圧しヘミングをしている状態を示す図である。It is a figure which shows the state which descend | falls a die holding body (upper press type) from the state of FIG. 22, pinches | interposes and presses the end surface of a board | plate material with a lower press type and an upper press type, and is hemming. 図１７の状態からダイ（ダイ保持体）を下降した後、ダイに板材を設置し、パンチを下降し、ダイとパンチとで板材を挟み込み板材の曲げ加工をしている状態を示す図である。FIG. 18 is a view showing a state where a plate material is installed on the die after the die (die holding body) is lowered from the state of FIG. 17, the punch is lowered, the plate material is sandwiched between the die and the punch, and the plate material is bent. . 図２４のＸＸＶ部の拡大図である。It is an enlarged view of the XXV part of FIG. 本発明の第３の実施形態に係る折曲加工装置における、板材を押圧等する部位の斜視図であって、端面押圧上型が上昇している状態を示す図である。It is a perspective view of the site | part which presses a board | plate material in the bending processing apparatus which concerns on the 3rd Embodiment of this invention, Comprising: It is a figure which shows the state which the end surface press upper mold | type is rising. 図２６に示す状態から端面押圧上型を下降し板材の端部を押圧（板材を曲げ加工するときの反りを少なくするための押圧）している状態を示す図である。It is a figure which shows the state which descend | falls the end surface press upper mold | type from the state shown in FIG. 26, and is pressing the edge part of a board | plate material (Pressing for reducing the curvature when bending a board | plate material). 図２６に示す状態から端面押圧上型を下降し板材にヘミング加工をしている状態を示す図である。It is a figure which shows the state which descend | falls the end surface press upper die from the state shown in FIG. 26, and is hemming-processed to a board | plate material. 図２６におけるＸＸＩＸ矢視図である。It is a XXIX arrow directional view in FIG. 図２７に示す押圧をしているときの、端面押圧上型と端面押圧下型との挙動を示す側面図である。FIG. 28 is a side view showing the behavior of the end face pressing upper mold and the end face pressing lower mold when the pressing shown in FIG. 27 is performed.
（第１の実施形態）
　以下、本発明を図示する実施形態により具体的に説明する。図１～図１２は本発明の第１の実施形態の板材の折曲加工装置（板材の加工装置）１を示し、図１は全体の側面図、図２及び図３は折曲加工部２を示す斜視図及び背面からの斜視図である。図４～図７は端面押圧部３及び端面押圧部３における高さ調節機構４１を示し、図８～図１１は端面押圧部３における押圧幅調節機構５１を示し、図１２は板材の端面への押圧制御を示す。 (First embodiment)
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. 1 to 12 show a plate bending apparatus (plate processing apparatus) 1 according to a first embodiment of the present invention, FIG. 1 is a side view of the whole, and FIGS. 2 and 3 are bending sections 2. It is the perspective view which shows these, and the perspective view from a back surface. 4 to 7 show the end surface pressing portion 3 and the height adjusting mechanism 41 in the end surface pressing portion 3, FIGS. 8 to 11 show the pressing width adjusting mechanism 51 in the end surface pressing portion 3, and FIG. 12 shows the end surface of the plate material. The press control of is shown.
　板材の折曲加工装置（たとえばプレスブレーキ）１は、金属板からなる板材（板状のワーク）Ｗの折曲を行う機能に加えて切断によって生じた残留応力を調整するために板材Ｗの端面を押圧する機能を備える。このため、図１に示すように折曲加工装置１はＶ曲げ等によって板材Ｗを折り曲げる折曲加工部２と、折り曲げ加工前における板材Ｗの一方の端面側を押圧する端面押圧部３と、これらを一体に支持する装置基台５とを備える。 A plate material bending apparatus (for example, a press brake) 1 has an end surface of a plate material W for adjusting a residual stress generated by cutting in addition to a function of bending a plate material (plate-shaped workpiece) W made of a metal plate. The function to press is provided. Therefore, as shown in FIG. 1, the bending apparatus 1 includes a bending unit 2 that bends the plate material W by V-bending and the like, an end surface pressing unit 3 that presses one end surface side of the plate material W before the bending process, The apparatus base 5 which supports these integrally is provided.
　装置基台５は上部基台５ａ及び下部基台５ｂが上下で対向した状態で連設されることにより側面から見て縦長のＵ字形状（またはＣ字形状）に形成されており、折曲加工部２が上部基台５ａ側に配置され、端面押圧部３が折曲加工部２の下側に対向した状態で下部基台５ｂ側に配置される。折曲加工装置１においては、端面押圧部３がレーザやシャーリング等によって切断された板材Ｗの一方の端面側を押圧して残留応力を増減する。この一方の端面側の押圧の後、折曲加工部２が板材Ｗを折曲加工する。これにより反り発生を抑制した板材Ｗの折曲加工を行うことができる。 The apparatus base 5 is formed in a vertically long U-shape (or C-shape) when viewed from the side by connecting the upper base 5a and the lower base 5b in a state of facing each other vertically. The processing part 2 is arranged on the upper base 5a side, and the end face pressing part 3 is arranged on the lower base 5b side in a state facing the lower side of the bending processing part 2. In the bending apparatus 1, the end face pressing portion 3 presses one end face side of the plate material W cut by laser, shearing, or the like to increase or decrease the residual stress. After the pressing on the one end face side, the bending portion 2 bends the plate material W. Thereby, the bending process of the board | plate material W which suppressed curvature generation | occurrence | production can be performed.
　図１に示すように、折曲加工部２は上部基台５ａ側に設けられたパンチ側部材１１と、パンチ側部材１１の下方に設けられたダイ側部材１２と、パンチ側部材１１を駆動する油圧シリンダからなる折曲駆動装置（駆動装置）１３とを備えている。なお、油圧シリンダはサーボモータ等の他のアクチュエータであってもよい。油圧シリンダからなる折曲駆動装置１３は装置基台５の上部基台５ａに上下方向を向くように取り付けられており、その伸縮動作によってパンチ側部材１１をダイ側部材１２の方向に移動させるための上下動が行われる。なお、パンチ側部材１１を上下方向に移動させることに代えてもしくは加えて、ダイ側部材１２を上下方向に移動させる構成であってもよい。 As shown in FIG. 1, the bending unit 2 drives the punch side member 11 provided on the upper base 5 a side, the die side member 12 provided below the punch side member 11, and the punch side member 11. And a bending drive device (drive device) 13 comprising a hydraulic cylinder. The hydraulic cylinder may be another actuator such as a servo motor. The bending drive device 13 composed of a hydraulic cylinder is attached to the upper base 5a of the device base 5 so as to face the up-down direction, and moves the punch side member 11 in the direction of the die side member 12 by its expansion and contraction operation. Is moved up and down. Instead of or in addition to moving the punch side member 11 in the vertical direction, the die side member 12 may be moved in the vertical direction.
　パンチ側部材１１は折曲駆動装置１３の下側に設けられており、板材Ｗを押圧するパンチ１４と、パンチ１４が取り付けられるパンチホルダ１５と、パンチホルダ１５が取り付けられる上部テーブル１６とを有する。上部テーブル１６は折曲駆動装置１３に連結されており、折曲駆動装置１３が駆動することによりパンチ１４は上部テーブル１６，パンチホルダ１５と共に上下動して板材Ｗを押圧する。 The punch side member 11 is provided on the lower side of the bending drive device 13, and includes a punch 14 that presses the plate material W, a punch holder 15 to which the punch 14 is attached, and an upper table 16 to which the punch holder 15 is attached. . The upper table 16 is connected to the bending drive device 13, and when the bending drive device 13 is driven, the punch 14 moves up and down together with the upper table 16 and the punch holder 15 to press the plate material W.
　ダイ側部材１２はパンチ１４に対向しておりパンチ１４によって押圧された板材Ｗを受けるダイ１７と、ダイ１７の下部を支持するダイホルダ（第１のダイ保持体）１８及び下部テーブル（第２のダイ保持体）２１とを有する。下部テーブル２１はダイホルダ１８と共にダイ１７を挟み込んで保持するものであり、その上部にはダイホルダ１８に対向した挟持片２１ａが突出している。ダイ１７は脚部１７ａがダイホルダ１８及び挟持片２１ａに挟持され、この挟持状態でダイホルダ１８をねじによって締め付けることによりダイ１７がダイホルダ１８及び下部テーブル２１に保持される。 The die-side member 12 faces the punch 14 and receives a die 17 that receives the plate material W pressed by the punch 14, a die holder (first die holder) 18 that supports the lower portion of the die 17, and a lower table (second die). Die holding body) 21. The lower table 21 sandwiches and holds the die 17 together with the die holder 18, and a sandwiching piece 21 a facing the die holder 18 protrudes from the upper table 21. In the die 17, the leg portion 17a is sandwiched between the die holder 18 and the sandwiching piece 21a, and the die 17 is held by the die holder 18 and the lower table 21 by tightening the die holder 18 with a screw in this sandwiched state.
　以上のダイ側部材１２は下部テーブル２１が装置基台５の下部基台５ｂ上に固定されたベースフレーム２５に取り付けられることにより、全体がベースフレーム２５に支持される。ベースフレーム２５は垂直状に立ち上がる側壁部２５ａを有した側面Ｌ字形に形成されており、下部テーブル２１はベースフレーム２５の側壁部２５ａに対して上下移動可能に取り付けられる。すなわち図３に示すように、下部テーブル２１の側壁部２５ａには、上下方向に伸びる長孔２６が所定間隔で複数形成されており、下部テーブル２１の背面に取り付けられた複数のねじ２７のそれぞれがこの長孔２６を貫通することにより、下部テーブル２１がベースフレーム２５に上下動可能に取り付けられるものである。このような構造では、パンチ１４がダイ１７方向へ移動して、すなわちパンチ１４が下降してダイ１７上の板材Ｗを押圧すると、パンチ１４の押圧によって下部テーブル２１に下方向への移動力が作用するため、下部テーブル２１が同方向へ移動するようになっている。この場合、ベースフレーム２５の側壁部２５ａの内部には、ねじ２７に対応したリターンスプリング２８が設けられており、下部テーブル２１の下動によって圧縮されることにより、この反力で下部テーブル２１が元の高さ位置に復帰する。 The above die side member 12 is supported by the base frame 25 as a whole by attaching the lower table 21 to the base frame 25 fixed on the lower base 5 b of the apparatus base 5. The base frame 25 is formed in a side L shape having a side wall portion 25a that rises vertically, and the lower table 21 is attached to the side wall portion 25a of the base frame 25 so as to be vertically movable. That is, as shown in FIG. 3, a plurality of elongated holes 26 extending in the vertical direction are formed in the side wall portion 25 a of the lower table 21 at predetermined intervals, and each of the plurality of screws 27 attached to the back surface of the lower table 21. However, the lower table 21 is attached to the base frame 25 so as to be vertically movable by passing through the long hole 26. In such a structure, when the punch 14 moves in the direction of the die 17, that is, when the punch 14 descends and presses the plate material W on the die 17, a downward moving force is exerted on the lower table 21 by the pressing of the punch 14. In order to act, the lower table 21 moves in the same direction. In this case, a return spring 28 corresponding to the screw 27 is provided inside the side wall portion 25 a of the base frame 25, and the lower table 21 is compressed by the lower table 21 by the downward movement of the lower table 21. Return to the original height position.
　折曲加工部２は板材ＷをＶ曲げ等に折曲させるものであり、板材Ｗの折曲はパンチ１４とダイ１７との押圧中心７（図１参照）に沿って行われる。 The bending portion 2 is for bending the plate material W into V-bending or the like, and the bending of the plate material W is performed along the pressing center 7 (see FIG. 1) between the punch 14 and the die 17.
　端面押圧部３は下部テーブル２１に対向して配置された下側端面押圧型３１を備えている。下側端面押圧型３１は折り曲げ加工前の板材Ｗの折曲加工の折曲線に沿う一方の端面側を押圧するものである。板材Ｗは下側端面押圧型３１上に一方の端面側が載置され、この載置状態でパンチ１４がダイ１７方向に移動して下部テーブル２１が同方向に移動し、この下部テーブル２１の移動によって下部テーブル２１と下側端面押圧型３１との間で板材Ｗが挟み込まれることにより一方の端面１９の近傍が押圧される。この押圧を行うため、下側端面押圧型３１と対応している下部テーブル２１の下端は上側端面押圧型３２である。 The end face pressing portion 3 includes a lower end face pressing mold 31 disposed to face the lower table 21. The lower side end face pressing die 31 presses one end face side along the folding line of the bending process of the plate material W before the bending process. One end face side of the plate material W is placed on the lower end face pressing die 31, and the punch 14 moves in the direction of the die 17 in this placement state, and the lower table 21 moves in the same direction. As a result, the plate member W is sandwiched between the lower table 21 and the lower end surface pressing die 31 so that the vicinity of one end surface 19 is pressed. In order to perform this pressing, the lower end of the lower table 21 corresponding to the lower end surface pressing die 31 is an upper end surface pressing die 32.
　このような構造では、板材Ｗの折り曲げを行う折曲押圧部２と、反りを抑制するために板材Ｗの端面を押圧する端面押圧部３とを一つの装置基台５に設けた構造であるため、一台の装置で板材Ｗの端面の押圧と曲げ加工を行うことができる。また、板材Ｗの取り回しが容易で、作業性を向上させることができる。また、板材Ｗの残留応力を制御するための板材Ｗの一方の端面１９への押圧が板材Ｗを折曲加工する折曲加工部２の折曲駆動装置１３の駆動力によって行うことができるため、板材Ｗの端面１９の押圧のための駆動源が別途必要なく、構造が簡単となると共にエネルギー節約が可能となる。 In such a structure, one apparatus base 5 is provided with a bending pressing portion 2 for bending the plate material W and an end surface pressing portion 3 for pressing the end surface of the plate material W in order to suppress warpage. Therefore, pressing and bending of the end surface of the plate material W can be performed with a single device. In addition, handling of the plate material W is easy and workability can be improved. Moreover, since the pressing to the one end surface 19 of the board | plate material W for controlling the residual stress of the board | plate material W can be performed with the drive force of the bending drive apparatus 13 of the bending process part 2 which bends the board | plate material W. Further, there is no need for a separate drive source for pressing the end face 19 of the plate member W, the structure is simplified and energy can be saved.
　図２に示すように下側端面押圧型３１は、複数の固定型３３及び複数の可動型３５によって形成される。複数の固定型３３は高さ位置が固定された状態でベースフレーム２５上に設けられている。可動型３５は固定型３３に隣接して設けられており、固定型３３に対し高さ位置が変更可能となっている。可動型３５の高さ位置の変更は高さ調節機構４１によって行われる。 As shown in FIG. 2, the lower end face pressing die 31 is formed by a plurality of fixed dies 33 and a plurality of movable dies 35. The plurality of fixed dies 33 are provided on the base frame 25 with their height positions fixed. The movable mold 35 is provided adjacent to the fixed mold 33, and the height position can be changed with respect to the fixed mold 33. The height position of the movable mold 35 is changed by the height adjustment mechanism 41.
　高さ調節機構４１は図４～図６に示すように、ベースフレーム２５の背面側に配置された高さ調節駆動源４２と、ベースフレーム２５の上方に配置されたシーム４３とを有する。高さ調節駆動源４２はシリンダ或いはモータを用いることができるが、この実施形態ではシリンダが用いられている。シーム４３は平板状に形成されており、可動型３５のそれぞれの下面に臨むようにベースフレーム２５の上方に配置される。可動型３５はシーム４３に臨む下面が高面部３５ａと低面部３５ｂの段付き面である。 4 to 6, the height adjustment mechanism 41 includes a height adjustment drive source 42 disposed on the back side of the base frame 25 and a seam 43 disposed above the base frame 25. A cylinder or a motor can be used as the height adjustment drive source 42, but a cylinder is used in this embodiment. The seam 43 is formed in a flat plate shape and is disposed above the base frame 25 so as to face the lower surface of each movable die 35. The lower surface of the movable die 35 facing the seam 43 is a stepped surface of a high surface portion 35a and a low surface portion 35b.
　平板状のシーム４３はベースフレーム２５上をダイ側部材１２の方向又はダイ側部材１２から離隔する方向に移動可能となっている。この移動を行うため、高さ調節駆動源４２のピストン４２ａの先端部に連結ブラケット４４が取り付けられ、この連結ブラケット４４の先端部分にシーム４３が取り付けられる。連結ブラケット４４は高さ調節駆動源４２が駆動することによりスライド移動し、このスライド移動によりシーム４３が上述した方向すなわちダイ側部材１２の方向及びダイ側部材１２から離隔する方向へ移動する。 The flat seam 43 is movable on the base frame 25 in the direction of the die side member 12 or in the direction away from the die side member 12. In order to perform this movement, a connecting bracket 44 is attached to the tip of the piston 42 a of the height adjusting drive source 42, and a seam 43 is attached to the tip of the connecting bracket 44. The connection bracket 44 slides when the height adjustment drive source 42 is driven, and the sliding movement causes the seam 43 to move in the above-described direction, that is, the direction of the die side member 12 and the direction away from the die side member 12.
　この移動により、シーム４３が高面部３５ａに臨むと、シーム４３と可動型３５の高面部３５ａとの間に大きな隙間が生じるため、この大きな隙間の分、可動型３５が低くなることができる。このように可動型３５が低くなった状態では、可動型３５は板材Ｗの押圧に関与することがない。図７はこの状態を示し、固定型３３に対して可動型３５が低くなっている。この状態でパンチ１４が下降して下部テーブル２１が下方に移動すると、下部テーブル２１の上側端面押圧型３２と固定型３３とによって板材Ｗの端面の押圧が行われるが、可動型３５による押圧は行われない。これに対し、シーム４３が低面部３５ｂに臨むと、シーム４３と低面部３５ｂとが接近するため、可動型３５はその上面が固定型３３と同じ高さとなるように高い位置で停止した状態となる。このように可動型３５が高くなった状態では、可動型３５は固定型３３と共に板材Ｗの押圧に関与する。 When this movement causes the seam 43 to face the high surface portion 35a, a large gap is generated between the seam 43 and the high surface portion 35a of the movable die 35. Therefore, the movable die 35 can be lowered by this large gap. When the movable die 35 is lowered as described above, the movable die 35 does not participate in the pressing of the plate material W. FIG. 7 shows this state, in which the movable die 35 is lower than the fixed die 33. When the punch 14 descends in this state and the lower table 21 moves downward, the upper end surface pressing die 32 and the fixed die 33 of the lower table 21 press the end surface of the plate material W. Not done. On the other hand, when the seam 43 faces the low surface portion 35b, the seam 43 and the low surface portion 35b approach each other, so that the movable die 35 is stopped at a high position so that the upper surface thereof is at the same height as the fixed die 33. Become. When the movable mold 35 is thus raised, the movable mold 35 is involved in pressing the plate material W together with the fixed mold 33.
　このような下側端面押圧型３１においては、可動型３５の高さ位置を変更することにより、板材Ｗの端面を部分的に押圧することができる。このため、押圧が必要な板材Ｗの必要部位を部分的に押圧することが可能である。 In such a lower end face pressing die 31, the end face of the plate material W can be partially pressed by changing the height position of the movable die 35. For this reason, it is possible to partially press the necessary portion of the plate material W that needs to be pressed.
　この実施形態の折曲加工装置１においては、板材Ｗの一方の端面の押圧幅を調節することが可能となっている。この調節は押圧幅調節機構５１によって行われる。 In the bending apparatus 1 of this embodiment, the pressing width of one end face of the plate material W can be adjusted. This adjustment is performed by the pressing width adjusting mechanism 51.
　押圧幅調節機構５１は図８～図１１に示すように、下側端面押圧型３１に設けられた端面当接バー５３と、下側端面押圧型３１を移動させるバックゲージ（不図示）とを備える。 As shown in FIGS. 8 to 11, the pressing width adjusting mechanism 51 includes an end surface contact bar 53 provided on the lower end surface pressing die 31 and a back gauge (not shown) for moving the lower end surface pressing die 31. Prepare.
　端面当接バー５３は下側端面押圧型３１における固定型３３に設けられるものであり、固定型３３とダイ側部材１２の下部テーブル２１との間に挿入される。固定型３３と下部テーブル２１との間に挿入されることにより端面当接バー５３は下側端面押圧型３１に載置される板材Ｗの一方の端面１９に臨んだ状態となり（図１参照）、板材Ｗの一方の端面１９が当接する。この当接により板材Ｗが下側端面押圧型３１で停止するため、押圧すべき板材Ｗの端面１９の押圧面の寸法を調節することができる。 The end surface abutment bar 53 is provided on the fixed die 33 in the lower end surface pressing die 31 and is inserted between the fixed die 33 and the lower table 21 of the die side member 12. By being inserted between the fixed mold 33 and the lower table 21, the end surface contact bar 53 faces the one end surface 19 of the plate material W placed on the lower end surface pressing mold 31 (see FIG. 1). The one end surface 19 of the plate material W comes into contact. Since the plate material W is stopped by the lower end surface pressing die 31 by this contact, the size of the pressing surface of the end surface 19 of the plate material W to be pressed can be adjusted.
　この実施形態において、図１１に示すように固定型３３には端面当接バー５３が入り込むことが可能なバー収用溝５６が形成される。バー収用溝５６の内部にはコイル状の支持スプリング５７が設けられており、端面当接バー５３は支持スプリング５７に支持される。このような支持構造では下部テーブル２１が下降して端面当接バー５３に当接すると、端面当接バー５３は支持スプリング５７を撓ませながらバー収用溝５６内に入り込む。一方、下部テーブル２１が上昇すると、端面当接バー５３は撓んだ支持スプリング５７のトルクによってバー収用溝５６から押し出され、固定型３３の上面に出現する。これにより端面当接バー５３は固定型３３に対して出没自在に設けられる。 In this embodiment, as shown in FIG. 11, the fixed mold 33 is formed with a bar collecting groove 56 into which the end surface contact bar 53 can enter. A coil-shaped support spring 57 is provided inside the bar collecting groove 56, and the end surface contact bar 53 is supported by the support spring 57. In such a support structure, when the lower table 21 is lowered and contacts the end surface contact bar 53, the end surface contact bar 53 enters the bar collecting groove 56 while bending the support spring 57. On the other hand, when the lower table 21 is raised, the end surface contact bar 53 is pushed out of the bar collecting groove 56 by the torque of the bent support spring 57 and appears on the upper surface of the fixed mold 33. Thereby, the end surface abutting bar 53 is provided so as to be able to appear and retract with respect to the fixed mold 33.
　バックゲージは、固定型３３をパンチ１４のダイ１７への押圧方向に対して交差した直交方向に移動させる可動部として作用する。バックゲージには、シリンダ等が用いられており、連結ブロック５９が連結され、それぞれの連結ブロック５９に固定型３３が取り付けられている。このような構造では、バックゲージの押圧動作により固定型３３はパンチ１４のダイ１７への押圧方向と直交した方向に進出する。図９～１１に示すように固定型３３の背面にはリターンスプリング６０が当接しており、固定型３３が進出するとリターンスプリング６０が撓むようになっている。従って、バックケージの駆動が停止すると、進出した固定型３３は撓んだリターンスプリング６０の反力によって元の位置に復帰する。 The back gauge acts as a movable part that moves the fixed mold 33 in a direction orthogonal to the pressing direction of the punch 14 to the die 17. A cylinder or the like is used for the back gauge, and connecting blocks 59 are connected, and a fixed mold 33 is attached to each connecting block 59. In such a structure, the fixed die 33 advances in a direction orthogonal to the pressing direction of the punch 14 to the die 17 by the pressing operation of the back gauge. As shown in FIGS. 9 to 11, a return spring 60 is in contact with the back surface of the fixed die 33, and the return spring 60 bends when the fixed die 33 advances. Therefore, when the drive of the back cage stops, the fixed mold 33 that has advanced returns to the original position by the reaction force of the bent return spring 60.
　このような押圧幅調節機構５１はパンチ１４のダイ１７への押圧方向と直交した方向に固定型３３を移動させることにより、端面当接バー５３の板材Ｗの端面への当接位置を調整することができる。このため、下部テーブル２１（上側端面押圧型３２）及び下側端面押圧型３１による板材Ｗの端面１９の近傍への押圧寸法（挿入方向の奥行）を板材Ｗの残留応力に合わせて調節することができる。これにより板材Ｗの残留応力を簡単に制御することが可能となる。 Such a pressing width adjusting mechanism 51 adjusts the contact position of the end surface contact bar 53 to the end surface of the plate material W by moving the fixed die 33 in a direction orthogonal to the pressing direction of the punch 14 to the die 17. be able to. For this reason, the pressing dimension (depth in the insertion direction) to the vicinity of the end surface 19 of the plate material W by the lower table 21 (upper end surface pressing die 32) and the lower end surface pressing die 31 is adjusted according to the residual stress of the plate material W. Can do. This makes it possible to easily control the residual stress of the plate material W.
　押圧幅調節機構５１による板材Ｗの端面への押圧幅の調整において、板材Ｗは一方の端面１９をダイ側部材１２に向けて下部テーブル２１と下側端面押圧型３１との間に差し込まれる。その後、折曲駆動装置１３を駆動してパンチ１４をダイ１７の方向に移動させ（下降させ）、その移動力によりダイ１７の下側の下部テーブル２１を下降させて下部テーブル２１の上側端面押圧型３２と下側端面押圧型３１とによって板材Ｗの一方の端面側（端面１９の近傍の縁部）を押圧する。 In the adjustment of the pressing width to the end surface of the plate material W by the pressing width adjusting mechanism 51, the plate material W is inserted between the lower table 21 and the lower end surface pressing die 31 with one end surface 19 facing the die side member 12. Thereafter, the bending driving device 13 is driven to move (lower) the punch 14 in the direction of the die 17, and the lower table 21 below the die 17 is lowered by the moving force to press the upper end face of the lower table 21. One end surface side (edge portion in the vicinity of the end surface 19) of the plate material W is pressed by the mold 32 and the lower end surface pressing mold 31.
　図１に示すように、板材Ｗの押圧される部位（上側端面押圧型３２と固定型３３や可動型３５とで挟まれて押圧される部位）は、パンチ１４とダイ１７との押圧中心７よりも板材Ｗの挿入方向側に位置している。なお、押圧幅調節機構５１によって固定型３３を移動させて端面当接バー５３を押圧中心７に対して移動すれば、板材Ｗの押圧される部位の幅を適宜変更することができる。また、板材Ｗの押圧される部位の一部が、押圧中心７よりも板材Ｗの挿入方向の反対側に位置しているようにすることもできる。 As shown in FIG. 1, the portion to be pressed by the plate material W (the portion to be pressed between the upper end surface pressing die 32 and the fixed die 33 or the movable die 35) is the pressing center 7 between the punch 14 and the die 17. It is located in the insertion direction side of board material W rather than. If the fixed die 33 is moved by the pressing width adjusting mechanism 51 and the end surface contact bar 53 is moved with respect to the pressing center 7, the width of the portion to be pressed of the plate material W can be appropriately changed. In addition, a part of the portion to be pressed of the plate material W may be located on the opposite side of the pressing center 7 in the insertion direction of the plate material W.
　以上のような実施形態では、押圧幅調節機構５１を調整することにより板材Ｗの一方の端面１９の位置（板材Ｗの押圧される端面近傍の位置）を精度良く設定することができる。このため板材の残留応力に対する処置を精度良く行うことができる。 In the embodiment as described above, the position of one end surface 19 of the plate material W (position near the end surface to which the plate material W is pressed) can be accurately set by adjusting the pressing width adjusting mechanism 51. For this reason, the treatment with respect to the residual stress of the plate material can be performed with high accuracy.
　以上説明したように、この実施形態の板材の折曲加工装置１によれば、板材Ｗの折り曲げを行う折曲押圧部２と、反りを抑制するために板材Ｗの端面を押圧する端面押圧部３とを一つの装置基台５に設けているため、一台の装置で板材Ｗの端面の押圧と曲げ加工を行うことができ、板材の取り回しが容易で、作業性を向上させることができる。 As described above, according to the plate material bending apparatus 1 of this embodiment, the bending pressure portion 2 that bends the plate material W and the end surface pressure portion that presses the end surface of the plate material W in order to suppress warpage. 3 is provided on one device base 5, the end surface of the plate material W can be pressed and bent by a single device, and the plate material can be easily handled and the workability can be improved. .
　また、板材Ｗの端面に当接する端面当接バー５３を有した押圧幅調節機構５１を設けることにより、板材Ｗの一方の端面１９の押圧幅を調節できるため、板材Ｗの端面への押圧寸法を板材Ｗの残留応力に合わせて調節することができ、板材Ｗの残留応力を簡単に制御することが可能となる。 Moreover, since the pressing width of one end surface 19 of the plate material W can be adjusted by providing the pressing width adjusting mechanism 51 having the end surface abutting bar 53 that contacts the end surface of the plate material W, the pressing dimension to the end surface of the plate material W is reduced. Can be adjusted in accordance with the residual stress of the plate material W, and the residual stress of the plate material W can be easily controlled.
　また、板材Ｗの残留応力を制御するための端面押圧部３による板材Ｗの端面の押圧が板材Ｗを折曲加工する折曲加工部２の折曲駆動装置１３の駆動力によって行うため、板材Ｗの端面の押圧のための駆動源が必要なく、構造が簡単となると共にエネルギー節約が可能となる。
（第２の実施形態）
　第２の実施形態に係る加工装置（板材Ｗの折曲加工装置）１０１は、第１の実施形態に係る折曲加工装置１とほぼ同様に構成されており、金属板からなる板材（板状のワーク）Ｗの折り曲げを行う機能に加え、切断によって生じた残留応力を調整するために板材Ｗの端面を押圧する機能を備える。そして、第１の実施形態に係る折曲加工装置１と同様に動作し同様の効果を奏する。 In addition, since the pressing of the end surface of the plate material W by the end surface pressing unit 3 for controlling the residual stress of the plate material W is performed by the driving force of the bending driving device 13 of the bending processing unit 2 for bending the plate material W, the plate material A drive source for pressing the end face of W is not required, and the structure is simplified and energy can be saved.
(Second Embodiment)
A processing apparatus (bending apparatus for plate material W) 101 according to the second embodiment is configured in substantially the same manner as the bending apparatus 1 according to the first embodiment, and is a plate material (plate-like) made of a metal plate. In addition to the function of bending the workpiece W, it has a function of pressing the end face of the plate material W in order to adjust the residual stress generated by cutting. And it operate | moves similarly to the bending processing apparatus 1 which concerns on 1st Embodiment, and there exists the same effect.
　図１３、図１４、図１９、図２４等に示すように、折曲加工装置（たとえばプレスブレーキ）１０１は、Ｖ曲げ等によって板材Ｗを折り曲げる折曲加工部１０３と、折り曲げ加工前における板材Ｗの一方の端面側を押圧する端面押圧部１０５と、これらを一体に支持するＣ字形状の装置基台１０７とを備える。 As shown in FIGS. 13, 14, 19, 24, and the like, a bending device (for example, a press brake) 101 includes a bending portion 103 that bends a plate material W by V-bending or the like, and a plate material W before the bending processing. The end surface pressing part 105 which presses one end surface side of this, and the C-shaped apparatus base 107 which supports these integrally are provided.
　装置基台１０７は、図１４で示すように、上部基台１０７ａ及び下部基台１０７ｂが上下で対向した状態で連設されることにより側面から見てＣ字形状に形成される。また、折曲加工部（折曲押圧部）１０３が上部基台１０７ａ側に配置されており、押圧加工部（端面押圧部）１０５が折曲加工部１０３の下側に対向した状態で下部基台１０７ｂ側に配置される。 As shown in FIG. 14, the device base 107 is formed in a C shape when viewed from the side surface by connecting the upper base 107 a and the lower base 107 b in a state of being vertically opposed to each other. Further, the bending processing portion (bending pressing portion) 103 is arranged on the upper base 107 a side, and the pressing processing portion (end surface pressing portion) 105 faces the lower side of the bending processing portion 103 in the lower base. Arranged on the stage 107b side.
　折曲加工装置１０１においては、端面押圧部１０５がレーザやシャーリング等によって切断された板材Ｗの一方の端面側を押圧して残留応力を増減する。この一方の端面側の押圧の後または両方の端面側を押圧した後、折曲加工部１０３が板材Ｗを折曲加工する。これにより反り発生を抑制して舟反りの反り量が低減された板材Ｗの折曲加工を行うことができる。 In the bending apparatus 101, the end face pressing portion 105 presses one end face side of the plate material W cut by laser, shearing or the like to increase or decrease the residual stress. After pressing the one end face side or after pressing both end face sides, the bending portion 103 bends the plate material W. Accordingly, it is possible to perform bending processing of the plate material W in which warpage generation is suppressed and the warpage amount of the boat warpage is reduced.
　折曲加工部１０３は上部基台１０７ａ側に設けられたパンチ側部材１０９と、パンチ側部材１０９の下方で下部基台１０７ｂ側に設けられたダイ側部材１１１と、パンチ側部材１０９を駆動する油圧シリンダ１６３またはサーボモータ等の他のアクチュエータからなる折曲駆動装置（駆動装置）１１３とを備えている。折曲駆動装置１１３の油圧シリンダ１６３は装置基台１０７の上部基台１０７ａに上下方向を向くように取り付けられており、その伸縮動作によってパンチ側部材１０９をダイ側部材１１１の方向に移動させるための上下動が行われる。 The bending portion 103 drives the punch side member 109 provided on the upper base 107a side, the die side member 111 provided on the lower base 107b side below the punch side member 109, and the punch side member 109. And a bending driving device (driving device) 113 including another actuator such as a hydraulic cylinder 163 or a servo motor. The hydraulic cylinder 163 of the bending drive device 113 is attached to the upper base 107a of the device base 107 so as to face in the vertical direction, and moves the punch side member 109 in the direction of the die side member 111 by its expansion / contraction operation. Is moved up and down.
　なお、油圧シリンダ１６３に供給される作動油の圧力を変えることで、パンチ側部材１０９の推力を調整することができる。また、パンチ側部材１０９を上下方向に移動させることに代えてもしくは加えて、ダイ側部材１１１を上下方向に移動させる構成であってもよい。 Note that the thrust of the punch-side member 109 can be adjusted by changing the pressure of the hydraulic oil supplied to the hydraulic cylinder 163. Further, instead of or in addition to moving the punch side member 109 in the vertical direction, the die side member 111 may be moved in the vertical direction.
　パンチ側部材１０９は折曲駆動装置１１３の下側に設けられており、板材Ｗを押圧するパンチ１１５と、パンチ１１５が一体的に取り付けられるパンチホルダ１１７と、パンチホルダ１１７が一体的に取り付けられる上部テーブル１１９とを有する。上部テーブル１１９は折曲駆動装置１１３に連結されており、折曲駆動装置１１３が駆動することにより、パンチ１１５が上部テーブル１１９、パンチホルダ１１７とともに上下動して板材Ｗを押圧する。 The punch side member 109 is provided on the lower side of the bending drive device 113, and the punch 115 that presses the plate material W, the punch holder 117 to which the punch 115 is integrally attached, and the punch holder 117 are integrally attached. And an upper table 119. The upper table 119 is connected to the bending drive device 113, and when the bending drive device 113 is driven, the punch 115 moves up and down together with the upper table 119 and the punch holder 117 to press the plate material W.
　ダイ側部材１１１はパンチ１１５に対向しており、図１６や図１７や図２４等で示すように、パンチ１１５によって押圧された板材Ｗを受けるダイ１２１と、ダイ１２１の下部を支持するダイホルダ（ダイ保持体）１２５及び上部押圧型（上側端面押圧型；ダイホルダ押え部材）１２７とを有する。 The die-side member 111 faces the punch 115, and as shown in FIGS. 16, 17, 24, etc., a die 121 that receives the plate material W pressed by the punch 115 and a die holder that supports the lower portion of the die 121 ( Die holding body) 125 and an upper pressing die (upper end face pressing die; die holder pressing member) 127.
　ダイ保持体１２５には、ダイ１２１と上部押圧型１２７とが一体的に設けられる。ダイ側部材１１１が装置基台１０７の下部基台１０７ｂ（下部テーブル１５９）上に固定されたベースフレーム１２３に取り付けられることにより、ダイ側部材１１１が（ダイ保持体１２５とダイ１２１と上部押圧型１２７とが）ベースフレーム１２３に支持され、ベースフレーム１２３に対して上下方向で移動自在である。 The die holding body 125 is integrally provided with a die 121 and an upper pressing die 127. The die side member 111 is attached to the base frame 123 fixed on the lower base 107b (lower table 159) of the apparatus base 107, so that the die side member 111 (die holding body 125, die 121, and upper pressing type) 127) is supported by the base frame 123 and is movable up and down with respect to the base frame 123.
　また、ダイ側部材１１１は、シリンダ（たとえば空気圧シリンダ）１２９等の付勢部材によって、上方に付勢される。すなわち、空気圧シリンダ１２９の下側のシリンダ室に圧縮空気を供給したときには、図１７で示すように、ダイ側部材１１１が上昇する。なお、空気圧シリンダ１２９に供給される圧縮空気の圧力が一定であれば、ダイ側部材１１１はこの位置にかかわらず、常に一定の付勢力で上方に付勢される。 Further, the die side member 111 is biased upward by a biasing member such as a cylinder (for example, a pneumatic cylinder) 129. That is, when compressed air is supplied to the lower cylinder chamber of the pneumatic cylinder 129, the die side member 111 is raised as shown in FIG. If the pressure of the compressed air supplied to the pneumatic cylinder 129 is constant, the die side member 111 is always urged upward with a constant urging force regardless of this position.
　空気圧シリンダ１２９の下側のシリンダ室への圧縮空気の供給を止めた場合（空気圧シリンダ１２９の下側のシリンダ室と上側シリンダ室とが大気開放された場合）には、ダイ側部材１１１の自重でダイ側部材１１１が下降する。 When the supply of compressed air to the lower cylinder chamber of the pneumatic cylinder 129 is stopped (when the lower cylinder chamber and the upper cylinder chamber of the pneumatic cylinder 129 are opened to the atmosphere), the weight of the die side member 111 is reduced. Then, the die side member 111 is lowered.
　なお、空気圧シリンダ１２９の上側のシリンダ室へ圧縮空気を供給し下側のシリンダ室を大気開放することで、ダイ側部材１１１を強制的に下降するようにしてもよい。 It should be noted that the die side member 111 may be forcibly lowered by supplying compressed air to the upper cylinder chamber of the pneumatic cylinder 129 and opening the lower cylinder chamber to the atmosphere.
　また、シリンダ等に代わりに圧縮コイルばね等の弾性体を用い、第１の実施形態に係る折曲加工装置１と同様にして、ダイ側部材１１１を上方に付勢してもよいし、第１の実施形態に係る折曲加工装置１において、シリンダ等を用いて、ダイ側部材１２を上方に付勢してもよい。 Further, an elastic body such as a compression coil spring may be used instead of the cylinder or the like, and the die side member 111 may be urged upward in the same manner as in the bending apparatus 1 according to the first embodiment. In the bending apparatus 1 according to one embodiment, the die side member 12 may be biased upward using a cylinder or the like.
　さらに、シリンダや圧縮コイルばね等の弾性体の代わりに、サーボモータ等のアクチュエータを用いて、ダイホルダ１２５と上側端面押圧型１２７とを上下方向で移動し任意の位置に位置決めするようにしてもよい。 Furthermore, instead of an elastic body such as a cylinder or a compression coil spring, an actuator such as a servo motor may be used to move the die holder 125 and the upper end face pressing die 127 in the vertical direction and position them at an arbitrary position. .
　折曲加工部１０３は板材ＷをＶ曲げ等に折り曲げするものであり、板材Ｗの折り曲げはパンチ１１５とダイ１２１との押圧中心１３１（図２４等参照）に沿って行われる。 The bending portion 103 is for bending the plate material W into a V-bend or the like, and the bending of the plate material W is performed along the pressing center 131 (see FIG. 24 and the like) between the punch 115 and the die 121.
　端面押圧部１０５は、上部押圧型１２７に対向して配置された下側端面押圧型（下部押圧型）１３５を備えて構成される。下部押圧型１３５は折り曲げ加工前の板材Ｗの折曲加工の折曲線に沿う一方の端面側を押圧するものである。 The end face pressing portion 105 is configured to include a lower end face pressing mold (lower pressing mold) 135 disposed to face the upper pressing mold 127. The lower pressing die 135 presses one end face side along the folding line of the bending process of the plate material W before the bending process.
　板材Ｗは下側端面押圧型１３５上に一方の端面側が載置され、この載置状態でパンチ１１５がダイ１２１方向（下方向）に移動してダイ保持体１２５と上部押圧型１２７が同方向に移動し、この移動により上部押圧型１２７と下部押圧型１３５との間で板材Ｗが挟み込まれることにより板材Ｗの一方の端面が押圧される（図１９参照）。 One end face side of the plate material W is placed on the lower end face pressing die 135, and the punch 115 moves in the direction of the die 121 (downward) in this placement state so that the die holding body 125 and the upper pressing die 127 are in the same direction. This movement causes the plate material W to be sandwiched between the upper pressing die 127 and the lower pressing die 135, thereby pressing one end surface of the plate material W (see FIG. 19).
　下部押圧型１３５は、ダイ側部材１１１（上部押圧型１２７）との間で（ダイ側部材１１１の上側端面押圧型１２７と協働して）板材Ｗの端面を押圧可能な（押圧する）複数個の押圧型１３７（１３７Ａ，１３７Ｂ，１３７Ｃ），１３９（１３９Ａ，１３９Ｂ，１３９Ｃ，１３９Ｄ，１３９Ｅ，１３９Ｆ）に分割される（図１５等参照）。 A plurality of lower pressing dies 135 are capable of pressing (pressing) the end surface of the plate member W with the die side member 111 (upper pressing die 127) (in cooperation with the upper end surface pressing die 127 of the die side member 111). The pressing molds 137 (137A, 137B, 137C) and 139 (139A, 139B, 139C, 139D, 139E, 139F) are divided (see FIG. 15 and the like).
　これらの分割された各押圧型１３７，１３９のうちのたとえば各押圧型１３７Ａ，１３７Ｂ，１３７Ｃは、ダイ側部材１１１との間で板材Ｗを押圧するときに選択的に押圧（加圧）可能である。 Of these divided pressing dies 137, 139, for example, the pressing dies 137A, 137B, 137C can be selectively pressed (pressurized) when pressing the plate material W with the die side member 111. is there.
　上記選択は、折曲駆動装置１１３の押圧力（加圧力）が不足している場合であっても、端面押圧部１０５による板材Ｗの押圧力が不足しないようにするためになされる。 The above selection is made so that the pressing force of the plate material W by the end face pressing portion 105 is not insufficient even when the pressing force (pressing force) of the bending drive device 113 is insufficient.
　例を掲げて詳しく説明する。端面押圧部１０５による板材５の端面の押圧（板材Ｗの厚さ方向での押圧）は、折曲加工装置１０１（折曲駆動装置１１３の油圧シリンダ１６３）の押圧力を用いてなされるようになっている。ここで、下側端面押圧型１３５が３つの押圧型（第１の押圧型１３７Ａ、第２の押圧型１３７Ｂ、第３の押圧型１３７Ｃ）に分割されているものとする（図１３、図１５参照）。 Explain in detail with examples. The end surface pressing portion 105 presses the end surface of the plate member 5 (pressing the plate member W in the thickness direction) using the pressing force of the bending device 101 (the hydraulic cylinder 163 of the bending drive device 113). It has become. Here, the lower end face pressing die 135 is divided into three pressing dies (first pressing die 137A, second pressing die 137B, and third pressing die 137C) (FIGS. 13 and 15). reference).
　第１の押圧型（分割型）１３７Ａの長さ（押圧型１３９Ａ，１３９Ｂを含めた長さ）と、第２の押圧型１３７Ｂの長さ（押圧型１３９Ｃ，１３９Ｄを含めた長さ）と、第３の押圧型１３７Ｃの長さ（押圧型１３９Ｅ，１３９Ｆを含めた長さ）とはお互いが等しく５００ｍｍ程度になっている。第１～第３の押圧型１３７Ａ，１３７Ｂ，１３７Ｃをこれらの長さ方向につなげることで、下側端面押圧型１３５の長さ（左右方向の寸法）は１５００ｍｍになっている。なお、各押圧型（分割型）１３９Ａ～１３９Ｆそれぞれの長さは、お互いが等しい５０ｍｍ程度になっており、押圧型１３７の長さに比べて十分に小さい。 The length of the first pressing mold (divided mold) 137A (the length including the pressing molds 139A and 139B), the length of the second pressing mold 137B (the length including the pressing molds 139C and 139D), The length of the third pressing mold 137C (the length including the pressing molds 139E and 139F) is about 500 mm. By connecting the first to third pressing dies 137A, 137B, and 137C in the length direction, the length (horizontal dimension) of the lower end face pressing die 135 is 1500 mm. The lengths of the pressing dies (divided dies) 139A to 139F are about 50 mm, which is equal to each other, and are sufficiently smaller than the length of the pressing dies 137.
　板材Ｗの折曲加工の折曲線に沿う端面側の長さは１５００ｍｍ弱になっており、この長さ１５００ｍｍ弱の一端側の５００ｍｍの部位が第１の押圧型１３７Ａと押圧型１３９Ａ，１３９Ｂ（押圧型１３９Ｃ～１３９Ｆを含む場合もある）とによって押圧されるものとする。同様にして、中央の５００ｍｍの部位が第２の押圧型１３７Ｂによって押圧され、他端側の５００ｍｍの部位が第３の押圧型１３７Ｃによって押圧されるようになっているものとする。 The length on the end face side along the folding line of the bending process of the plate material W is slightly less than 1500 mm, and the 500 mm portion on the one end side that is less than 1500 mm in length is the first pressing mold 137A and the pressing molds 139A and 139B ( The press dies 139C to 139F may be included). Similarly, it is assumed that the central 500 mm portion is pressed by the second pressing die 137B, and the 500 mm portion on the other end side is pressed by the third pressing die 137C.
　折曲加工装置１０１（折曲駆動装置１１３）における最大の押圧力が５０ｔ（５００００ｋｇｆ；約５００ｋＮ）であり、一方、板材（たとえば、ｓｐｃｃ）Ｗの折曲加工の折曲線に沿う端面側の長さ１５００ｍｍ弱の箇所を、第１～第３の押圧型１３７Ａ～１３７Ｃ，１３９Ａ～１３９Ｆを用いて同時に押圧するのに必要な押圧力すなわち曲げ加工をしたときに船形の変形を確実に許容範囲内にするために必要な押圧力が、最大の押圧力が５０ｔよりも大きい６０ｔであるものとする。 The maximum pressing force in the bending apparatus 101 (folding drive apparatus 113) is 50 t (50000 kgf; about 500 kN), while the length on the end face side along the folding line of the bending process of the plate material (for example, spcc) W is long. Deformation of the hull form is surely within the allowable range when the pressing force necessary for simultaneously pressing a portion less than 1500 mm using the first to third pressing dies 137A to 137C and 139A to 139F, that is, bending. It is assumed that the pressing force necessary to achieve the maximum pressure is 60 t, the maximum pressing force being greater than 50 t.
　そこで、まず、第１の押圧型１３７Ａを選択して、第１の押圧型１３７Ａ（押圧型１３９Ａ～１３９Ｆを含む）のみで、板材Ｗの一端側の５００ｍｍの部位を２０ｔ程度の力で押圧をし、この後、第２の押圧型１３７Ｂを選択して、第２の押圧型１３７Ｂ（押圧型１３９Ａ～１３９Ｆを含む）のみで、板材Ｗの中央の５００ｍｍの部位を２０ｔ程度の力で押圧をし、この後、第３の押圧型１３７Ｃを選択して、第３の押圧型１３７Ｃ（押圧型１３９Ａ～１３９Ｆを含む）のみで、板材Ｗの他端側の５００ｍｍの部位を２０ｔ程度の力で押圧をする。 Therefore, first, the first pressing mold 137A is selected, and only the first pressing mold 137A (including the pressing molds 139A to 139F) is used to press the 500 mm portion on one end side of the plate W with a force of about 20 t. Thereafter, the second pressing die 137B is selected, and the central 500 mm portion of the plate material W is pressed with a force of about 20 t with only the second pressing die 137B (including the pressing dies 139A to 139F). Thereafter, the third pressing die 137C is selected, and only the third pressing die 137C (including the pressing dies 139A to 139F) is used to move the 500 mm portion on the other end side of the plate member W with a force of about 20 t. Press.
　また、パンチ側部材１０９（パンチ１１５）のダイ側部材１１１（ダイ１２１）側への駆動（移動）方向（板材Ｗの押圧方向；上下方向）に対して交差する方向（直交する方向；前後方向）に、各押圧型１３７，１３９のそれぞれを別個に移動することで、上記選択がなされるように構成される。 Also, the direction (orthogonal direction; front-rear direction) intersecting the driving (moving) direction of the punch-side member 109 (punch 115) toward the die-side member 111 (die 121) (pressing direction of the plate material W; vertical direction) ), Each of the pressing dies 137 and 139 is moved separately, so that the above selection is made.
　たとえば、押圧型１３７が後側に移動したときには、図２０で示すように、パンチ側部材１０９（パンチ１１５）の斜め下に押圧型１３７が位置し、この状態で上部押圧型１２７が下降しても、上部押圧型１２７と部押圧型１３７とによる板材Ｗの挟み込みがなされず、板材Ｗの押圧がなされないように構成される。 For example, when the pressing die 137 moves to the rear side, as shown in FIG. 20, the pressing die 137 is positioned obliquely below the punch side member 109 (punch 115), and in this state, the upper pressing die 127 is lowered. Also, the plate material W is not sandwiched by the upper pressing die 127 and the partial pressing die 137, and the plate material W is not pressed.
　一方、押圧型１３７が前側に移動したときには、図１９で示すように、パンチ側部材１０９（パンチ１１５）の真下に押圧型１３７が位置し、この状態で上部押圧型１２７が下降すると、上部押圧型１２７と押圧型１３７とによる板材Ｗの挟み込みがなされ、板材Ｗの押圧がなされるように構成される。 On the other hand, when the pressing die 137 moves to the front side, as shown in FIG. 19, when the pressing die 137 is positioned directly below the punch side member 109 (punch 115) and the upper pressing die 127 is lowered in this state, the upper pressing The plate material W is sandwiched between the die 127 and the pressing die 137 so that the plate material W is pressed.
　なお、図１５に示す押圧型１３７Ａは、複数（たとえば３つ）に分かれているが、各押圧型１３７Ａは、連結部材１４１（１４１Ａ）によって一体的に連結されており、図示しない空気圧シリンダ等のアクチュエータにより前後方向で移動するようになっている。同様にして、各押圧型１３７Ｂも連結部材１４１（１４１Ｂ）によって連結されており、前後方向で移動するようになっている。各押圧型１３７Ｃも連結部材１４１（１４１Ｃ）によって連結されており、前後方向で移動する。 Although the pressing mold 137A shown in FIG. 15 is divided into a plurality (for example, three), each pressing mold 137A is integrally connected by a connecting member 141 (141A), such as a pneumatic cylinder (not shown). The actuator moves in the front-rear direction. Similarly, each pressing die 137B is also connected by a connecting member 141 (141B), and moves in the front-rear direction. Each pressing die 137C is also connected by a connecting member 141 (141C) and moves in the front-rear direction.
　各押圧型１３７，１３９のうちの一部の押圧型（突き当て支持体）１３９（１３９Ａ～１３９Ｆ；図１５参照）は、折曲加工装置１０１のバックゲージ１４３（図１３、図１４参照）によって前後方向で移動位置決めされるように構成される。 A part of the pressing dies 137, 139 (butting support) 139 (139A to 139F; see FIG. 15) is driven by a back gauge 143 (see FIGS. 13 and 14) of the bending apparatus 101. It is configured to be moved and positioned in the front-rear direction.
　押圧型１３９には、板材Ｗが突き当てられる（当接される）突き当て（当接バー）１４５が設けられている（図１８等参照）。突き当て１４５に板材Ｗの端面が突き当てられて板材Ｗの位置決めがなされることで、端面押圧部１０５による板材Ｗの押圧幅（図１９の寸法Ｌ１）が決められる。 The pressing die 139 is provided with an abutting (abutting bar) 145 against which the plate material W is abutted (abutted) (see FIG. 18 and the like). By pressing the end surface of the plate material W against the abutment 145 and positioning the plate material W, the pressing width of the plate material W by the end surface pressing portion 105 (dimension L1 in FIG. 19) is determined.
　折曲加工装置１０１には、たとえば２つのバックゲージ１４３が設けられている。これらのバックゲージ１４３のそれぞれは、別個に移動位置決めされる。 The bending apparatus 101 is provided with two back gauges 143, for example. Each of these back gauges 143 is moved and positioned separately.
　突き当て支持体（押圧型）１３９は、少なくとも２つ（たとえば図１５で示すように６つ）設けられている。複数の突き当て支持体１３９のうちの２つの突き当て支持体１３９のそれぞれに、２つのバックゲージ１４３のそれぞれが係合して一体化する。 At least two butting supports (pressing molds) 139 (for example, six as shown in FIG. 15) are provided. Each of the two back gauges 143 engages and integrates with each of the two butting support bodies 139 of the plurality of butting support bodies 139.
　バックゲージ１４３が係合する突き当て支持体１３９の選択は、板材Ｗの寸法すなわちパンチ１１５とダイ１２１とで曲げ加工がなされる曲げ線の延伸方向における板材Ｗの端部の長さに応じて適宜決定される。 The selection of the butting support 139 with which the back gauge 143 is engaged depends on the dimension of the plate material W, that is, the length of the end portion of the plate material W in the extending direction of the bending line bent by the punch 115 and the die 121. It is determined appropriately.
　２つのバックゲージ１４３のそれぞれが係合した２つの突き当て支持体１３９のそれぞれは、バックゲージ１４３とともに前後方向で別個に移動位置決めされる。 Each of the two butting supports 139 engaged with each of the two back gauges 143 is separately moved and positioned together with the back gauge 143 in the front-rear direction.
　なお、すでに理解されるように、支持体１３９、突き当て１４５、バックゲージ１４３等によって、折曲加工装置１０１における押圧幅調節機構が構成される。 As already understood, the support 139, the abutment 145, the back gauge 143, and the like constitute a pressing width adjusting mechanism in the bending apparatus 101.
　また、第１の実施形態の係る折曲加工装置１でも、同様にしてバックゲージで押圧型（突き当て支持体；当接バー支持体）の位置決めがなされる。 Also in the bending apparatus 1 according to the first embodiment, the pressing die (abutting support; contact bar support) is similarly positioned with the back gauge.
　突き当て１４５は、突き当て支持体１３９の板材Ｗを押圧する面（板材押圧面）１４９に対して出没自在になっている。また、突き当て１４５は、板材押圧面１４９から上方に突出するように、圧縮コイルバネ１５１等の弾性体で付勢される。そして、板材Ｗの位置決めをするときには、突き当て１４５は、板材押圧面１４９から上方に突出しており、板材Ｗが上側端面押圧型１２７と下側端面押圧型１３５とで押圧されるときには、突き当て１４５は、上側端面押圧型１２７に押されて突き当て支持体（下側端面押圧型１３５を構成している押圧型）１３９に埋没する方向（下方向）に移動する。 The abutment 145 can freely move in and out of a surface (plate material pressing surface) 149 that presses the plate material W of the abutment support 139. The abutment 145 is urged by an elastic body such as a compression coil spring 151 so as to protrude upward from the plate material pressing surface 149. When positioning the plate material W, the abutment 145 protrudes upward from the plate material pressing surface 149, and when the plate material W is pressed by the upper end surface pressing die 127 and the lower end surface pressing die 135, 145 moves in a direction (downward) that is pressed by the upper end surface pressing die 127 and buried in the abutting support (a pressing die constituting the lower end surface pressing die 135) 139.
　また、折曲加工装置１０１（第１の実施形態にかかる折曲加工装置１を含む）には、板材Ｗをヘミング加工（図２２、図２３参照）するヘミング加工部１５３が設けられる。 Further, the bending apparatus 101 (including the bending apparatus 1 according to the first embodiment) is provided with a hemming section 153 for hemming the plate material W (see FIGS. 22 and 23).
　なお、ヘミング加工部１５３は、端面押圧部１０５によって構成される（端面押圧部１０５と兼用される）。 In addition, the hemming process part 153 is comprised by the end surface press part 105 (it serves as the end surface press part 105).
　ところで、ダイ保持体１２５および上部押圧型１２７とを有しているダイ側部材１１１、ベースフレーム１２３、下部押圧型１３５等によって、金型設置体（ダイ設置体）１５５が構成される。 Incidentally, a die installation body (die installation body) 155 is configured by the die side member 111 having the die holding body 125 and the upper pressing mold 127, the base frame 123, the lower pressing mold 135, and the like.
　金型設置体１５５は、すでに理解されるように、パンチ１１５とダイ１２１とを用いて板材Ｗに曲げ加工等を施す折曲加工装置１０１（第１の実施形態にかかる折曲加工装置１を含む）に設置されて使用されるものである。 As already understood, the mold installation body 155 is a bending apparatus 101 (the bending apparatus 1 according to the first embodiment) that performs bending or the like on the plate material W using the punch 115 and the die 121. Included) and used.
　金型設置体１５５には、金型設置部１５７と端面押圧部１０５とヘミング加工部１５３とが設けられている。金型設置部１５７には、ダイ１２１が設置される。なおダイ１２１の代わりにパンチ１１５が設置されるように構成してもよい。 The mold installation body 155 is provided with a mold installation unit 157, an end face pressing unit 105, and a hemming processing unit 153. The die 121 is installed in the mold installation unit 157. In addition, you may comprise so that the punch 115 may be installed instead of the die | dye 121. FIG.
　また、上述したように、端面押圧部１０５によって、パンチ１１５と金型設置部１５７に設置されたダイ１２１とで曲げ加工がされる前の板材Ｗの曲げ線に沿う端面側の部位が押圧されるようになっている。 Further, as described above, the end surface pressing portion 105 presses the end surface side portion along the bend line of the plate material W before being bent by the punch 115 and the die 121 installed in the mold installation portion 157. It has become so.
　端面押圧部１０５は、板材Ｗの曲げ加工の曲げ線の延伸方向で複数の押圧型１３７，１３９に分割されており、板材Ｗの曲げ線に沿う端面側の部位を押圧するときには、分割がされている各押圧型１３７を選択的に使用できるように構成される。 The end surface pressing portion 105 is divided into a plurality of pressing dies 137 and 139 in the extending direction of the bending line of the bending process of the plate material W, and is divided when the end surface side portion along the bending line of the plate material W is pressed. Each pressing die 137 is configured to be selectively used.
　突き当て１４５が設けられている押圧型１３９は、前述したように、折曲加工装置１０１のバックゲージ１４３によって移動位置決めされる。 The pressing die 139 provided with the abutment 145 is moved and positioned by the back gauge 143 of the bending apparatus 101 as described above.
　なお、図１５では、３つの金型設置体１５５Ａ，１５５Ｂ，１５５Ｃがこれらの長手方向につながっている。図１５に示すような金型設置体１５５が、折曲加工装置１０１に設置される。 In FIG. 15, three mold installation bodies 155A, 155B, and 155C are connected in the longitudinal direction. A mold installation body 155 as shown in FIG. 15 is installed in the bending apparatus 101.
　ここで、折曲加工装置１０１や金型設置体（ダイ設置体）１５５についてさらに詳しく説明する。 Here, the bending apparatus 101 and the mold installation body (die installation body) 155 will be described in more detail.
　説明の便宜のために水平な一方向（左右方向）をＸ軸方向とし、Ｘ軸方向に対して直交する水平な他の一方向（前後方向）をＹ軸方向とし、Ｘ軸方向とＹ軸方向とに直交する方向（上下方向）をＺ軸方向とする。 For convenience of explanation, one horizontal direction (left-right direction) is defined as the X-axis direction, and one other horizontal direction (front-rear direction) orthogonal to the X-axis direction is defined as the Y-axis direction. A direction (vertical direction) perpendicular to the direction is defined as a Z-axis direction.
　図１３や図１４で示すように、折曲加工装置１０１の装置基台（フレーム）１０７の前側下方には、下部テーブル１５９が一体的に設けられている。下部テーブル１５９の上面には、金型設置体１５５（１５５Ａ，１５５Ｂ，１５５Ｃ）がこれらの長手方向で順につながって（図１３、図１５参照）Ｘ軸方向に長く延びて設けられている。 As shown in FIGS. 13 and 14, a lower table 159 is integrally provided below the front side of the apparatus base (frame) 107 of the bending apparatus 101. On the upper surface of the lower table 159, a mold installation body 155 (155A, 155B, 155C) is connected in order in the longitudinal direction (see FIGS. 13 and 15) and is provided to extend in the X-axis direction.
　金型設置体１５５（１５５Ａ，１５５Ｂ，１５５Ｃ）それぞれの上方には、ダイ１２１（１２１Ａ，１２１Ｂ，１２１Ｃ）が一体的に設置される。各ダイ１２１Ａ，１２１Ｂ，１２１Ｃは同一の仕様であり、これらの長手方向で順につながって（図１３参照）Ｘ軸方向に長く延びている。 The die 121 (121A, 121B, 121C) is integrally installed above each of the mold installation bodies 155 (155A, 155B, 155C). The dies 121A, 121B, and 121C have the same specifications, and are connected in order in the longitudinal direction (see FIG. 13) and extend long in the X-axis direction.
　装置基台１０７の前側上方には、上部テーブル１１９が設けられている。上部テーブル１１９は、装置基台１０７に対してＺ軸方向で移動自在である。 An upper table 119 is provided on the upper front side of the device base 107. The upper table 119 is movable in the Z-axis direction with respect to the apparatus base 107.
　上部テーブル１１９の下面には、パンチホルダ１１７を介して、パンチ１１５（１１５Ａ，１１５Ｂ，１１５Ｃ）が一体的に設置される。各パンチ１１５Ａ，１１５Ｂ，１１５Ｃは同一の仕様であり、これらの長手方向で順につながって（図１３参照）Ｘ軸方向に長く延びている。 The punch 115 (115A, 115B, 115C) is integrally installed on the lower surface of the upper table 119 via the punch holder 117. The punches 115A, 115B, and 115C have the same specifications, are connected in order in the longitudinal direction (see FIG. 13), and extend long in the X-axis direction.
　上部テーブル１１９に設置された各パンチ１１５Ａ，１１５Ｂ，１１５Ｃのそれぞれに、下部テーブル１５９に設置された各ダイ１２１Ａ，１２１Ｂ，１２１Ｃのそれぞれが対向している。 Each die 121A, 121B, 121C installed on the lower table 159 is opposed to each punch 115A, 115B, 115C installed on the upper table 119.
　折曲加工装置１０１（折曲加工装置１）には、制御装置１６１が設けられている。そして、制御装置１６１の制御の下、上部テーブル１１９が、折曲駆動装置１１３の油圧シリンダ１６３によって、Ｚ軸方向で移動位置決めされる。 The bending device 101 (the bending device 1) is provided with a control device 161. Then, under the control of the control device 161, the upper table 119 is moved and positioned in the Z-axis direction by the hydraulic cylinder 163 of the bending drive device 113.
　これにより、折曲加工部１０３による板材Ｗの折り曲げ加工がなされ、端面押圧部１０５による板材Ｗの端面の押圧がなされ、ヘミング加工部１５３による板材Ｗのヘミング加工がなされる。 Thereby, the plate material W is bent by the bending portion 103, the end surface of the plate material W is pressed by the end surface pressing portion 105, and the hemming processing of the plate material W by the hemming portion 153 is performed.
　バックゲージ１４３は、Ｚ軸方向では装置基台１０７の中央部に、Ｘ軸方向では、下部テーブル１５９よりも後側に設けられており、制御装置１６１の制御の下、装置基台１０７に対して、Ｘ軸方向、Ｙ軸方向およびＺ軸方向で移動位置決めされるようになっている。 The back gauge 143 is provided at the central portion of the device base 107 in the Z-axis direction and at the rear side of the lower table 159 in the X-axis direction, and is controlled by the control device 161 with respect to the device base 107. Thus, it is moved and positioned in the X-axis direction, the Y-axis direction, and the Z-axis direction.
　次に、金型設置体１５５Ａについて詳しく説明する。金型設置体１５５Ｂ、１５５Ｃは、金型設置体１５５Ａと同様に構成されているので、金型設置体１５５Ｂ、１５５Ｃの説明は省略する。 Next, the mold installation body 155A will be described in detail. Since the mold installation bodies 155B and 155C are configured similarly to the mold installation body 155A, description of the mold installation bodies 155B and 155C is omitted.
　金型設置体１５５Ａは、図１７、図２１等で示すように、ベースフレーム１２３、ダイ保持体１２５、上部押圧型１２７、シリンダ１２９、下部押圧型１３５（押圧型１３７、１３９）、連結部材１４１、突き当て１４５を備えて構成される。 As shown in FIGS. 17 and 21, the mold installation body 155 </ b> A includes a base frame 123, a die holding body 125, an upper pressing mold 127, a cylinder 129, a lower pressing mold 135 (pressing molds 137 and 139), and a connecting member 141. , Abutting 145 is configured.
　ベースフレーム１２３は、細長い直方体状に形成される。さらに説明すると、ベースフレーム１２３の断面（長手方向であるＸ軸方向に対して直交する平面による断面）は、矩形状の下側基部１６５と矩形状の上側係合部１６７とを備えている。 The base frame 123 is formed in an elongated rectangular parallelepiped shape. More specifically, a cross section of the base frame 123 (a cross section taken along a plane orthogonal to the X-axis direction, which is the longitudinal direction) includes a rectangular lower base 165 and a rectangular upper engaging portion 167.
　上側係合部１６７の幅（Ｙ軸方向の寸法）の値は、下側基部１６５の幅（Ｙ軸方向の寸法）の値よりも小さくなっている。上側係合部１６７は、Ｙ軸方向では下側基部１６５の中間部に位置し、Ｚ軸方向では下側基部１６５の上端から上方に突出している。 The value of the width (dimension in the Y-axis direction) of the upper engaging portion 167 is smaller than the value of the width (dimension in the Y-axis direction) of the lower base portion 165. The upper engaging portion 167 is located in the middle portion of the lower base portion 165 in the Y-axis direction, and protrudes upward from the upper end of the lower base portion 165 in the Z-axis direction.
　ダイ保持体１２５も、ベースフレーム１２３と同じ長さで細長い直方体状に形成されており、Ｘ軸方向（長手方向）で、ベースフレーム１２３と同じところに位置している。さらに説明すると、ダイ保持体１２５の断面（長手方向に対して直交する平面による断面）は、矩形状の上側本体部１６９と矩形状の下側突出部１７１とを備えている。 The die holding body 125 is also formed in an elongated rectangular parallelepiped shape having the same length as the base frame 123, and is located at the same position as the base frame 123 in the X-axis direction (longitudinal direction). More specifically, a cross section of the die holding body 125 (a cross section by a plane orthogonal to the longitudinal direction) includes a rectangular upper main body 169 and a rectangular lower protrusion 171.
　下側突出部１７１の幅（Ｙ軸方向の寸法）の値は、上側本体部１６９の幅（Ｙ軸方向の寸法）の値よりも小さく設定される。下側突出部１７１は、Ｙ軸方向では上側本体部１６９に後端部に位置し、Ｚ軸方向では上側本体部１６９の下端から下方に突出している。 The value of the width (dimension in the Y-axis direction) of the lower protrusion 171 is set to be smaller than the value of the width (dimension in the Y-axis direction) of the upper main body 169. The lower protrusion 171 is located at the rear end of the upper main body 169 in the Y-axis direction, and protrudes downward from the lower end of the upper main body 169 in the Z-axis direction.
　また、ダイ保持体１２５には、ダイ設置用凹部（ダイ設置用溝）１７３が形成される。ダイ設置用凹部１７３は、ダイ保持体１２５の長手方向（Ｘ軸方向）の全長にわたって形成される。ダイ保持体１２５の断面をとると、ダイ設置用凹部１７３は、幅の値が上側本体部１６９の幅の値よりも小さく、深さ（Ｚ軸方向の寸法）の値が上側本体部１６９の高さ（Ｚ軸方向の寸法）の値よりも小さくなっている。そして、ダイ設置用凹部１７３は、Ｙ軸方向では上側本体部１６９の中間部に位置し、Ｚ軸方向では上側本体部１６９の上端から下方に凹んでいる。 Also, the die holder 125 is formed with a die installation recess (die installation groove) 173. The die installation recess 173 is formed over the entire length of the die holder 125 in the longitudinal direction (X-axis direction). When the cross section of the die holding body 125 is taken, the die installation recess 173 has a width value smaller than the width value of the upper body portion 169 and a depth (dimension in the Z-axis direction) value of the upper body portion 169. It is smaller than the height (dimension in the Z-axis direction). The die installation recess 173 is located in the middle of the upper body 169 in the Y-axis direction, and is recessed downward from the upper end of the upper body 169 in the Z-axis direction.
　ダイ１２１は、この下部がダイ設置用凹部１７３に入り込んで、ダイ保持体１２５に一体的に設置される。ダイ１２１の長さ（Ｘ方向の寸法）は、ベースフレーム１２３と同じ長さになっており、Ｘ軸方向（長手方向）で、ベースフレーム１２３と同じところに位置づけられる。 The lower part of the die 121 enters the concave part 173 for die installation, and is integrally installed on the die holding body 125. The length (dimension in the X direction) of the die 121 is the same as that of the base frame 123 and is positioned at the same position as the base frame 123 in the X axis direction (longitudinal direction).
　上部押圧型１２７も、ベースフレーム１２３と同じ長さで細長い直方体状に形成されており、Ｘ軸方向（長手方向）で、ベースフレーム１２３と同じところに位置している。さらに説明すると、上部押圧型１２７の断面（長手方向に対して直交する平面による断面）は、矩形状の上側凹部１７５と三角形状の下側面取部１７７とを備えて概ねＬ字形状に形成される。 The upper pressing die 127 is also formed in an elongated rectangular parallelepiped shape with the same length as the base frame 123, and is located at the same position as the base frame 123 in the X-axis direction (longitudinal direction). More specifically, the upper pressing die 127 has a cross section (a cross section taken along a plane orthogonal to the longitudinal direction), which is provided with a rectangular upper concave portion 175 and a triangular lower side surface taking portion 177, and is generally L-shaped. The
　上側凹部１７５と下側面取部１７７は、上部押圧型１２７の長手方向（Ｘ軸方向）の全長にわたって形成される。上部押圧型１２７の断面をとると、上側凹部１７５は、幅の値が上部押圧型１２７の幅の値よりも小さく、深さ（Ｚ軸方向の寸法）の値が上部押圧型１２７の高さ（Ｚ軸方向の寸法）の値よりも小さくなっている。そして、上側凹部１７５は、上部押圧型１２７後上側の角部に設けられている。また、下側面取部１７７は、上部押圧型１２７前下側の角部に設けられる。 The upper concave portion 175 and the lower side surface taking portion 177 are formed over the entire length of the upper pressing die 127 in the longitudinal direction (X-axis direction). When the cross section of the upper pressing die 127 is taken, the upper concave portion 175 has a width value smaller than that of the upper pressing die 127 and a depth (dimension in the Z-axis direction) having a height value of the upper pressing die 127. It is smaller than the value of (dimension in the Z-axis direction). And the upper side recessed part 175 is provided in the upper corner | angular part after the upper press type | mold 127. As shown in FIG. Further, the lower side surface taking part 177 is provided at a corner part on the front lower side of the upper pressing die 127.
　上部押圧型１２７は、ダイ保持体１２５の上側本体部１６９の前方下側の角部を構成している２つ面（辺）が、上側凹部１７５に入り込み、上側凹部１７５の２つの面すなわちＸ軸方向とＹ軸方向とに展開している平面とＸ軸方向とＺ軸方向とに展開している平面のそれぞれが、上側本体部１６９の前方下側の２つの面のそれぞれに面接触するようにして、ダイ保持体１２５に一体的に設けられる。 In the upper pressing die 127, two surfaces (sides) constituting the front lower corner portion of the upper body portion 169 of the die holding body 125 enter the upper recessed portion 175, and two surfaces of the upper recessed portion 175, that is, X Each of the plane extending in the axial direction and the Y-axis direction, and the plane extending in the X-axis direction and the Z-axis direction are in surface contact with the two front lower surfaces of the upper body 169. In this manner, the die holder 125 is integrally provided.
　ダイ保持体１２５に上部押圧型１２７が設置されていることで、ダイ保持体１２５と上部押圧型１２７と下方の中央部には、細長い直方体矩形状の溝１７９が形成される。 Since the upper pressing die 127 is installed on the die holding body 125, an elongated rectangular parallelepiped rectangular groove 179 is formed in the die holding body 125, the upper pressing die 127, and the lower central portion.
　この溝１７９に、ベースフレーム１２３の上側係合部１６７が入り込んで、ダイ保持体１２５と上部押圧型１２７とに、ベースフレーム１２３が係合することで、ベースフレーム１２３に対してダイ保持体１２５と上部押圧型１２７とが滑り対偶をなし、ベースフレーム１２３に対してダイ保持体１２５と上部押圧型１２７とが、Ｚ軸方向で移動する。 The upper engaging portion 167 of the base frame 123 enters the groove 179 and the base frame 123 engages with the die holding body 125 and the upper pressing die 127, so that the die holding body 125 is engaged with the base frame 123. And the upper pressing die 127 make a sliding pair, and the die holding body 125 and the upper pressing die 127 move in the Z-axis direction with respect to the base frame 123.
　なお、溝１７９の幅（Ｙ軸方向の寸法）は、ベースフレーム１２３の上側係合部１６７の幅（Ｙ軸方向の寸法）よりもごく僅かに大きくなるように設定される。 Note that the width (dimension in the Y-axis direction) of the groove 179 is set to be slightly larger than the width (dimension in the Y-axis direction) of the upper engagement portion 167 of the base frame 123.
　ベースフレーム１２３内には、シリンダ１２９が設けられている。シリンダ１２９は、筒状のシリンダ本体部１８１とピストン１８３とピストンロッド１８５とを備えて構成される。 In the base frame 123, a cylinder 129 is provided. The cylinder 129 includes a cylindrical cylinder body 181, a piston 183, and a piston rod 185.
　シリンダ１２９は、Ｙ軸方向では、ベースフレーム１２３に中央部に設けられており、Ｚ軸方向では、シリンダ本体部１８１とピストン１８３とが下方に位置し、ピストンロッド１８５が上方に突出している。ピストンロッド１８５の先端部は、ベースフレーム１２３（上側係合部１６７）の上端から突出して、ダイ保持体１２５の上側本体部１６９に一体的に係合している。シリンダ本体部１８１は、ベースフレーム１２３に一体的に設けられる。 The cylinder 129 is provided at the center of the base frame 123 in the Y-axis direction, the cylinder main body 181 and the piston 183 are positioned below, and the piston rod 185 protrudes upward in the Z-axis direction. The distal end portion of the piston rod 185 protrudes from the upper end of the base frame 123 (upper engagement portion 167) and is integrally engaged with the upper body portion 169 of the die holding body 125. The cylinder body 181 is integrally provided on the base frame 123.
　そして、ピストン１８３の上側のシリンダ室を大気開放しておいて、ピストン１８３の下側のシリンダ室に圧縮空気を供給すると、図１７、図１８、図２１、図２２で示すように、ダイ保持体１２５と上部押圧型１２７とダイ１２１とが上昇端に位置する。 When the cylinder chamber on the upper side of the piston 183 is opened to the atmosphere, and compressed air is supplied to the cylinder chamber on the lower side of the piston 183, the die is held as shown in FIGS. The body 125, the upper pressing die 127, and the die 121 are located at the rising end.
　一方、ピストン１８３の上側のシリンダ室と下側のシリンダ室とを大気開放すると、たとえば自重によってダイ保持体１２５と上部押圧型１２７とダイ１２１とが下降する（図１９、図２０、図２４等参照）。 On the other hand, when the cylinder chamber on the upper side and the cylinder chamber on the lower side of the piston 183 are opened to the atmosphere, the die holding body 125, the upper pressing die 127, and the die 121 are lowered by, for example, its own weight (FIGS. 19, 20, 24, etc.). reference).
　下部押圧型１３５の押圧型１３７（１３７Ａ）は、細長い直方体状に形成される。さらに説明すると、図１７等で示すように、押圧型１３７の断面（長手方向に対して直交する平面による断面）は、上方前側に切り欠き１８７が設けられた概ね矩形な形状に形成される。 The pressing die 137 (137A) of the lower pressing die 135 is formed in an elongated rectangular parallelepiped shape. More specifically, as shown in FIG. 17 and the like, the cross section of the pressing die 137 (a cross section by a plane orthogonal to the longitudinal direction) is formed in a substantially rectangular shape with a notch 187 provided on the upper front side.
　また、ベースフレーム１２３の下側基部１６５の前方上部には、凹部１８９が設けられている。ベースフレーム１２３の断面をとると、図１７等で示すように、凹部１８９は矩形状に形成されており、ベースフレーム１２３の下側基部１６５の前方上部の角部のところに設けられる。 Also, a recess 189 is provided at the upper front of the lower base 165 of the base frame 123. When the cross section of the base frame 123 is taken, as shown in FIG. 17 and the like, the concave portion 189 is formed in a rectangular shape, and is provided at the corner of the upper front portion of the lower base portion 165 of the base frame 123.
　押圧型１３７は、凹部１８９に入り込んでおり、押圧型１３７の下面と凹部１８９の底面とはお互いが面接触している。また、押圧型１３７は、図示しない空気圧シリンダ等のアクチュエータにより、ベースフレーム１２３に対してＹ軸方向で移動する。 The pressing die 137 enters the recess 189, and the lower surface of the pressing die 137 and the bottom surface of the recess 189 are in surface contact with each other. The pressing die 137 moves in the Y-axis direction with respect to the base frame 123 by an actuator such as a pneumatic cylinder (not shown).
　なお、図１７、図１９、図２２、図２３、図２４では、押圧型１３７は前側の移動端に位置しており、図２０では、押圧型１３７は後側の移動端に位置している。 In FIGS. 17, 19, 22, 23, and 24, the pressing die 137 is located at the front moving end, and in FIG. 20, the pressing die 137 is located at the rear moving end. .
　下部押圧型１３５の押圧型１３９（１３９Ａ，１３９Ｂ）は、図１８で示すように、この断面（Ｘ軸方向に対して直交する平面による断面）が、下側水平部位１９１と上側起立部位１９３とを備えたＬ字形状に形成される。 As shown in FIG. 18, the pressing die 139 (139A, 139B) of the lower pressing die 135 has a cross section (a cross section by a plane orthogonal to the X-axis direction) of the lower horizontal portion 191 and the upper standing portion 193. It is formed in the L shape provided with.
　下側水平部位１９１の高さ寸法（Ｚ軸方向の寸法）は、押圧型１３７の高さ寸法と一致している。また、下側水平部位１９１の前方上部には、切り欠き１８７と同様な切り欠き１９５が設けられる。 The height dimension (dimension in the Z-axis direction) of the lower horizontal portion 191 matches the height dimension of the pressing die 137. Further, a notch 195 similar to the notch 187 is provided in the upper front portion of the lower horizontal portion 191.
　ベースフレーム１２３の下側基部１６５の上部と上側係合部１６７の下部には、ベースフレーム１２３を前後方向に貫通している貫通孔１９７が設けられている。貫通孔１９７の底面の高さ位置は、凹部１８９の底面の高さ位置と一致している。 A through hole 197 penetrating the base frame 123 in the front-rear direction is provided in the upper part of the lower base 165 of the base frame 123 and the lower part of the upper engaging part 167. The height position of the bottom surface of the through hole 197 coincides with the height position of the bottom surface of the recess 189.
　また、貫通孔１９７に設置された押圧型１３９は、この下面が貫通孔１９７の底面に面接触して滑り対偶をなしている。 In addition, the pressing die 139 installed in the through hole 197 forms a sliding pair with its lower surface in surface contact with the bottom surface of the through hole 197.
　したがって、押圧型１３７、１３９がベースフレーム１２３に設置された状態では、Ｚ軸方向で、押圧型１３７の上面２０３の位置と、押圧型１３９の下側水平部位１９１の上面２０１の位置とがお互いに一致している。 Therefore, in a state where the pressing dies 137 and 139 are installed on the base frame 123, the position of the upper surface 203 of the pressing mold 137 and the position of the upper surface 201 of the lower horizontal portion 191 of the pressing mold 139 are mutually in the Z-axis direction. It matches.
　また、押圧型１３９の上側起立部位１９３が、バックゲージ１４３に一体的に係合することで、押圧型１３９は、Ｙ軸方向で移動位置決め自在になっている。 Further, the upper standing part 193 of the pressing die 139 is integrally engaged with the back gauge 143, so that the pressing die 139 can be moved and positioned in the Y-axis direction.
　押圧型１３９の下側水平部位１９１には突き当て１４５が設けられている。突き当て１４５は、下側水平部位１９１に対して上下方向で移動するようになっており、下側水平部位１９１の上面２０１に対して出没自在になっている。 Abutting 145 is provided on the lower horizontal portion 191 of the pressing mold 139. The abutment 145 moves in the up-down direction with respect to the lower horizontal portion 191, and can protrude and retract with respect to the upper surface 201 of the lower horizontal portion 191.
　また、突き当て１４５は、圧縮コイルバネ１５１で上方に付勢される。そして、なんら外力が加わっていない場合には、突き当て１４５は、下側水平部位１９１の上面２０１から突出している（図１８等参照）。一方、パンチ１１５の下降により上部押圧型１２７で下方に押されると、突き当て１４５は、下方に移動する（図１９等参照）。 Further, the abutment 145 is biased upward by the compression coil spring 151. When no external force is applied, the abutment 145 protrudes from the upper surface 201 of the lower horizontal portion 191 (see FIG. 18 and the like). On the other hand, when the punch 115 is pushed downward by the upper pressing die 127, the abutment 145 moves downward (see FIG. 19 and the like).
　板材Ｗに舟反り等緩和のための押圧や曲げ加工をするときには、押圧型１３９（１３９Ａ～１３９Ｆ）は、Ｙ軸方向で図１８で示すところに位置している。すなわち、上部押圧型１２７の下面１９９の前端よりも適宜の寸法Ｌ１だけ、突き当て１４５が後方に位置している。なお、寸法Ｌ１が板材Ｗの押圧幅になる。 When the plate material W is pressed or bent for mitigating boat warp or the like, the pressing mold 139 (139A to 139F) is positioned in the Y-axis direction as shown in FIG. That is, the abutment 145 is positioned rearward by an appropriate dimension L1 from the front end of the lower surface 199 of the upper pressing die 127. The dimension L1 is the pressing width of the plate material W.
　ヘミング加工をするときには、図２１で示すように、押圧型１３９は後方端に位置している。このとき、突き当て１４５は、ベースフレーム１２３の貫通孔１９７内に入り込んでいる。 When hemming is performed, as shown in FIG. 21, the pressing die 139 is located at the rear end. At this time, the abutment 145 enters the through hole 197 of the base frame 123.
　なお、図１８で示す場合であっても、図２１で示す場合であっても、押圧型１３９の下側水平部位１９１の上面２０１の一部は、板材Ｗを挟み込んで押圧するために、上部押圧型１２７の下面１９９と対向している。 18 and FIG. 21, a part of the upper surface 201 of the lower horizontal portion 191 of the pressing mold 139 is placed on the upper side in order to sandwich and press the plate material W. It faces the lower surface 199 of the pressing die 127.
　また、金型設置体１５５Ａでは、Ｘ軸方向で左から右に向かって、押圧型１３７Ａ、押圧型１３９Ａ、押圧型１３７Ａ、押圧型１３９Ｂ、押圧型１３７Ａがこの順にならんでいる。 In the mold installation body 155A, the pressing mold 137A, the pressing mold 139A, the pressing mold 137A, the pressing mold 139B, and the pressing mold 137A are arranged in this order from left to right in the X-axis direction.
　さらには、図１３で示すように、Ｘ軸方向で左から右に向かって、金型設置体１５５Ａ、金型設置体１５５Ｂ、金型設置体１５５Ｃがこの順にならんでいるとすると、左から右に向かって、押圧型１３７Ａ、押圧型１３９Ａ、押圧型１３７Ａ、押圧型１３９Ｂ、押圧型１３７Ａ、押圧型１３７Ｂ、押圧型１３９Ｃ、押圧型１３７Ｂ、押圧型１３９Ｄ、押圧型１３７Ｂ、押圧型１３７Ｃ、押圧型１３９Ｅ、押圧型１３７Ｃ、押圧型１３９Ｆ、押圧型１３７Ｃがこの順にならんでいる（図１５参照）。 Furthermore, as shown in FIG. 13, assuming that the mold installation body 155A, the mold installation body 155B, and the mold installation body 155C are arranged in this order from left to right in the X-axis direction, Toward the pressing mold 137A, pressing mold 139A, pressing mold 137A, pressing mold 139B, pressing mold 137A, pressing mold 137B, pressing mold 139C, pressing mold 137B, pressing mold 139D, pressing mold 137B, pressing mold 137C, pressing mold 139E, the pressing die 137C, the pressing die 139F, and the pressing die 137C are arranged in this order (see FIG. 15).
　なお、図１７に参照符号２０５で示すものは、板材Ｗをガイドするためのガイドプレートである。ガイドプレート２０５は、たとえば連結部材１４１を介して、ベースフレーム１２３に一体的に設けられる。 In addition, what is indicated by reference numeral 205 in FIG. 17 is a guide plate for guiding the plate material W. The guide plate 205 is provided integrally with the base frame 123, for example, via a connecting member 141.
　また、ベースフレーム１２３の下端からは、係合ピン２０７が突出している。ベースフレーム１２３（金型設置体１５５）は、係合ピン２０７と図示しないボルト等の締結具によって、下部テーブル１５９の上面で下部テーブル１５９に一体的に設置される。 Also, an engaging pin 207 protrudes from the lower end of the base frame 123. The base frame 123 (die mounting body 155) is integrally installed on the lower table 159 on the upper surface of the lower table 159 by the engaging pins 207 and fasteners such as bolts (not shown).
　なお、すでに理解されるように、パンチ１１５と金型設置体１５５に設置されたダイ１２１とによって、折曲加工部１０３が形成されており、金型設置体１５５の上部押圧型１２７（下面１９９）と金型設置体１５５の下部押圧型１３５（上面２０１，２０３）とで、端面押圧部１０５とヘミング加工部１５３とが形成される。 As already understood, the bending portion 103 is formed by the punch 115 and the die 121 installed on the mold installation body 155, and the upper pressing mold 127 (lower surface 199) of the mold installation body 155 is formed. ) And the lower pressing die 135 (upper surfaces 201 and 203) of the mold installation body 155 form an end surface pressing portion 105 and a hemming processing portion 153.
　次に、折曲加工装置１０１の動作について説明する。 Next, the operation of the bending apparatus 101 will be described.
　金型設置体１５５Ａと金型設置体１５５Ｂと金型設置体１５５ＣとのＸ軸方向の長さは、１５００ｍｍ（５００ｍｍ×３）とする。すなわち、ダイ１２１とパンチ１１５とによって、最大１５００ｍｍに長さにわたり、板材Ｗに１回で曲げ加工を施すことができるものとする。また、板材Ｗの曲げ線の長さは、１５００ｍｍよりも若干短いものとする。 The length of the mold installation body 155A, the mold installation body 155B, and the mold installation body 155C in the X-axis direction is 1500 mm (500 mm × 3). That is, it is assumed that the plate material W can be bent once by the die 121 and the punch 115 over a maximum length of 1500 mm. In addition, the length of the bending line of the plate material W is slightly shorter than 1500 mm.
　まず、板材Ｗに舟反り等緩和のための押圧や曲げ加工をするときの動作を説明する。 First, the operation when pressing or bending the plate material W for relaxation such as boat warping will be described.
　初期状態として、図１７や図１８で示すように、パンチ１１５が上昇しており、ダイ保持体１２５と上部押圧型１２７とが上昇端に位置しており、金型設置体１５５Ａの押圧型１３９と、金型設置体１５５Ｂの押圧型１３９と、金型設置体１５５Ｃの押圧型１３９とは、図１８で示すところに位置しており、金型設置体１５５Ａの押圧型１３７Ａが、図１７で示すように前側に位置しており、金型設置体１５５Ｂの押圧型１３７Ｂと金型設置体１５５Ｃの押圧型１３７Ｃとが、図２０で示すように後側に位置しているものとする。 As an initial state, as shown in FIGS. 17 and 18, the punch 115 is raised, the die holding body 125 and the upper pressing die 127 are positioned at the rising end, and the pressing die 139 of the mold installation body 155 </ b> A. The pressing mold 139 of the mold installation body 155B and the pressing mold 139 of the mold installation body 155C are positioned as shown in FIG. 18, and the pressing mold 137A of the mold installation body 155A is shown in FIG. As shown in FIG. 20, the pressing mold 137B of the mold installation body 155B and the pressing mold 137C of the mold installation body 155C are positioned on the rear side as shown in FIG.
　上記初期状態において、板材Ｗを金型設置体１５５（１５５Ａ～１５５Ｃ）に設置する。この状態では、Ｘ軸方向で金型設置体１５５（１５５Ａ～１５５Ｃ）と板材Ｗの位置とがお互いに一致しており、また、図１７や図１８で示すように、突き当て１４５に板材Ｗが当接してＹ軸方向で板材Ｗの位置決めがされる。 In the initial state, the plate material W is installed on the mold installation body 155 (155A to 155C). In this state, the mold installation body 155 (155A to 155C) and the position of the plate material W coincide with each other in the X-axis direction, and the plate material W is placed on the abutment 145 as shown in FIGS. Comes into contact with each other and the plate material W is positioned in the Y-axis direction.
　続いて、パンチ１１５を下降して金型設置体１５５Ａの上部押圧型１２７と、金型設置体１５５Ａの下部押圧型１３５（押圧型１３７Ａ、１３９Ａ、１３９Ｃ）とで、板材Ｗの長さ方向の一端部を幅Ｌ１（図１９参照）で押圧する。 Subsequently, the punch 115 is lowered, and the upper pressing mold 127 of the mold installation body 155A and the lower pressing mold 135 (pressing molds 137A, 139A, 139C) of the mold installation body 155A are arranged in the length direction of the plate material W. One end is pressed with a width L1 (see FIG. 19).
　この押圧のとき、金型設置体１５５Ｂの上部押圧型１２７と、金型設置体１５５Ｂの押圧型１３９Ｃ，１３９Ｄとにより、また、金型設置体１５５Ｃの上部押圧型１２７と、金型設置体１５５Ｃの押圧型１３９Ｅ，１３９Ｆとにより、同様の押圧がなされる。 At the time of this pressing, the upper pressing mold 127 of the mold installation body 155B and the pressing molds 139C and 139D of the mold installation body 155B, and the upper pressing mold 127 of the mold installation body 155C and the mold installation body 155C. The same pressing is performed by the pressing dies 139E and 139F.
　続いて、パンチ１１５とダイ保持体１２５と上部押圧型１２７とを上昇端に位置させ、金型設置体１５５Ａの押圧型１３７Ａを図２０で示すように後側に位置させ、金型設置体１５５Ｂの押圧型１３７Ｂを図２０で示すように前側に位置させる。 Subsequently, the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the pressing mold 137A of the mold installation body 155A is positioned on the rear side as shown in FIG. 20, and the mold installation body 155B. The pressing die 137B is positioned on the front side as shown in FIG.
　続いて、パンチ１１５を下降して金型設置体１５５Ｂの上部押圧型１２７と、金型設置体１５５Ｂの下部押圧型１３５（押圧型１３７Ｂ、１３９Ｃ、１３９Ｄ）とで、板材Ｗの長さ方向の中央部を幅Ｌ１（図１９参照）で押圧する。 Subsequently, the punch 115 is lowered and an upper pressing mold 127 of the mold installation body 155B and a lower pressing mold 135 (pressing molds 137B, 139C, 139D) of the mold installation body 155B in the length direction of the plate material W. The center portion is pressed with a width L1 (see FIG. 19).
　この押圧のとき、金型設置体１５５Ａの上部押圧型１２７と、金型設置体１５５Ａの押圧型１３９Ａ，１３９Ｂとにより、また、金型設置体１５５Ｃの上部押圧型１２７と、金型設置体１５５Ｃの押圧型１３９Ｅ，１３９Ｆとにより、同様の押圧がなされる。 At the time of this pressing, the upper pressing mold 127 of the mold installation body 155A and the pressing molds 139A and 139B of the mold installation body 155A, the upper pressing mold 127 of the mold installation body 155C, and the mold installation body 155C. The same pressing is performed by the pressing dies 139E and 139F.
　続いて、パンチ１１５とダイ保持体１２５と上部押圧型１２７とを上昇端に位置させ、金型設置体１５５Ｂの押圧型１３７を図２０で示すように後側に位置させ、金型設置体１５５Ｃの押圧型１３７を図２０で示すように前側に位置させる。 Subsequently, the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the pressing mold 137 of the mold installation body 155B is positioned on the rear side as shown in FIG. The pressing die 137 is positioned on the front side as shown in FIG.
　続いて、パンチ１１５を下降して金型設置体１５５Ｃの上部押圧型１２７と、金型設置体１５５Ｃの下部押圧型１３５（押圧型１３７Ｃ、１３９Ｅ、１３９Ｆ）とで、板材Ｗの長手方向の他端部を幅Ｌ１（図１９参照）で押圧する。 Subsequently, the punch 115 is lowered, and the upper pressing mold 127 of the mold installation body 155C and the lower pressing mold 135 (pressing molds 137C, 139E, 139F) of the mold installation body 155C are used in the other longitudinal direction of the plate material W. The end is pressed with a width L1 (see FIG. 19).
　この押圧のとき、金型設置体１５５Ａの上部押圧型１２７と、金型設置体１５５Ａの押圧型１３９Ａ，１３９Ｂとにより、また、金型設置体１５５Ｂの上部押圧型１２７と、金型設置体１５５Ｂの押圧型１３９Ｃ，１３９Ｄとにより、同様の押圧がなされる。 At the time of this pressing, the upper pressing mold 127 of the mold installation body 155A and the pressing molds 139A and 139B of the mold installation body 155A, and the upper pressing mold 127 of the mold installation body 155B and the mold installation body 155B. The same pressing is performed by the pressing dies 139C and 139D.
　以上により、１５００ｍｍに全長にわたる板材Ｗの押圧（板材Ｗに舟反り等緩和のための押圧）が終了する。 Thus, pressing of the plate material W over the entire length of 1500 mm (pressing the plate material W for relaxation such as boat warping) is completed.
　続いて、パンチ１１５とダイ保持体１２５と上部押圧型１２７とを上昇端に位置させ、板材Ｗを金型設置体１５５から搬出し、図２４で示すように、ダイ保持体１２５と上部押圧型１２７とを上昇端に位置させる。ダイ保持体１２５と上部押圧型１２７とを下降端に位置させた状態では、図２５で示すように、上部押圧型１２７の下面１９９と下部押圧型１３５の上面２０１，２０３との間は、ごく僅かの間隙（０．２ｍｍ程度の間隙）になっている。 Subsequently, the punch 115, the die holding body 125, and the upper pressing mold 127 are positioned at the rising end, and the plate material W is carried out from the mold installation body 155, and as shown in FIG. 24, the die holding body 125 and the upper pressing mold 127 is positioned at the rising end. In a state where the die holding body 125 and the upper pressing die 127 are positioned at the descending end, as shown in FIG. 25, the space between the lower surface 199 of the upper pressing die 127 and the upper surfaces 201 and 203 of the lower pressing die 135 is extremely small. There is a slight gap (a gap of about 0.2 mm).
　これにより、上部押圧型１２７の下面１９９と下部押圧型１３５の上面２０１，２０３との間にゴミ等の異物が入り難くなっており、板材Ｗの曲げ加工を精度良く行うことができる。 This makes it difficult for foreign matter such as dust to enter between the lower surface 199 of the upper pressing die 127 and the upper surfaces 201 and 203 of the lower pressing die 135, and the plate material W can be bent accurately.
　なお、ダイ保持体１２５と上部押圧型１２７とを下降端に位置させた状態では、ベースフレーム１２３の上側係合部１６７の上面と、ダイ保持体１２５の上側本体部１６９の下面とは、お互いに面接触している。 When the die holder 125 and the upper pressing die 127 are positioned at the lower end, the upper surface of the upper engaging portion 167 of the base frame 123 and the lower surface of the upper main body portion 169 of the die holder 125 are mutually connected. Is in surface contact.
　続いて、板材Ｗをダイ１２１に載置し、パンチ１１５を下降して、ほぼ１５００ｍｍの長さにわたり板材Ｗに一度の動作で曲げ加工をする。 Subsequently, the plate material W is placed on the die 121, the punch 115 is lowered, and the plate material W is bent by a single operation over a length of approximately 1500 mm.
　次に、板材Ｗにヘミング加工をするときの動作を説明する。 Next, the operation when hemming the plate material W will be described.
　初期状態として、図２１で示すように、パンチ１１５が上昇しており、ダイ保持体１２５と上部押圧型１２７とが上昇端に位置しており、金型設置体１５５Ａの押圧型１３９と、金型設置体１５５Ｂの押圧型１３９と、金型設置体１５５Ｃの押圧型１３９とは、後端に位置しており、金型設置体１５５Ａの押圧型１３７Ａと、金型設置体１５５Ｂの押圧型１３７Ｂと、金型設置体１５５Ｃの押圧型１３７Ｃとが、前側に位置しているものとする。 In the initial state, as shown in FIG. 21, the punch 115 is raised, the die holding body 125 and the upper pressing die 127 are positioned at the rising end, the pressing die 139 of the die installation body 155A, The pressing mold 139 of the mold installation body 155B and the pressing mold 139 of the mold installation body 155C are located at the rear end, and the pressing mold 137A of the mold installation body 155A and the pressing mold 137B of the mold installation body 155B. And the pressing die 137C of the mold installation body 155C are located on the front side.
　上記初期状態において、図２４で示すように、パンチ１１５を下降して板材Ｗに曲げ加工を施す。この曲げ加工は、ほぼ１５００ｍｍの長さにわたって一度になされる。曲げ角度は、３０°程度になっている。 In the initial state, as shown in FIG. 24, the punch 115 is lowered and the plate material W is bent. This bending is performed at once over a length of approximately 1500 mm. The bending angle is about 30 °.
　続いて、パンチ１１５を上昇して、ダイ保持体１２５と上部押圧型１２７とを上昇端に位置させ、３０°程度の曲げ加工をした板材Ｗの部位を、上部押圧型１２７と下部押圧型１３５との間に設置する（図２２参照）。 Subsequently, the punch 115 is raised, the die holder 125 and the upper pressing die 127 are positioned at the rising end, and the portion of the plate material W that has been bent by about 30 ° is replaced with the upper pressing die 127 and the lower pressing die 135. (See FIG. 22).
　続いて、パンチ１１５を下降して、上部押圧型１２７と下部押圧型１３５とで、板材Ｗの３０°程度の曲げ加工をした部位を挟み込むことで、ヘミング加工をする（図２３参照）。 Subsequently, the punch 115 is lowered, and a hemming process is performed by sandwiching a portion of the plate material W that has been bent at about 30 ° by the upper pressing mold 127 and the lower pressing mold 135 (see FIG. 23).
　なお、板材Ｗにヘミング加工をするとき、図２２で示す状態と図２３で示す状態とでは、板材Ｗの左端の位置が一定になっているが、金型設置体１５５に発生するモーメントを少なくするために、たとえば突き当て１４５の位置を適宜変更し、これに板材Ｗを突き当てることで、板材Ｗの左端の位置を変えてもよい（たとえば、特開２００３－１８１５４６号公報参照）。 When hemming is performed on the plate material W, the position of the left end of the plate material W is constant in the state shown in FIG. 22 and the state shown in FIG. 23, but the moment generated in the mold installation body 155 is reduced. In order to do this, for example, the position of the abutment 145 may be changed as appropriate, and the position of the left end of the plate material W may be changed by abutting the plate material W against this (for example, see Japanese Patent Application Laid-Open No. 2003-181546).
　ところで、上記説明では、３つのパンチ１１５が同一の仕様になっており、３つのダイ１２１も同一の仕様になっているが、パンチ１１５やダイ１２１を異なる仕様のものとしてもよい。ただし、金型ハイト（板材Ｗのパスライン）はお互いに等しくなっているものとする。 Incidentally, in the above description, the three punches 115 have the same specification, and the three dies 121 have the same specification, but the punch 115 and the die 121 may have different specifications. However, it is assumed that the mold heights (pass lines of the plate material W) are equal to each other.
　そして、各金型設置体１５５において、異なった加工を板材Ｗに施してもよい。 Further, different processing may be performed on the plate material W in each mold installation body 155.
　たとえば、金型設置体１５５Ａのところで、板材Ｗにヘミング加工を施し、金型設置体１５５Ｂと金型設置体１５５Ｃのところで、板材Ｗに押圧と曲げ加工を施してもよい。 For example, the plate material W may be hemmed at the mold installation body 155A, and the plate material W may be pressed and bent at the mold installation body 155B and the mold installation body 155C.
　これにより段取り変えをするすることなく、板材Ｗに曲げ加工やヘミング加工等の異なる加工を施すことができる。 This makes it possible to perform different processes such as bending and hemming on the plate material W without changing the setup.
　折曲加工装置１０１によれば、各押圧型１３７，１３９が板材Ｗを押圧するときに選択的に押圧可能なようになっているので、折曲駆動装置１１３における最大の押圧力を大きくすることなく、板材Ｗに十分な押圧力を加えることができ、曲げ加工のときに板材Ｗに発生する舟反りや舟反りの量を許容値内に容易におさめることができる。したがって最大推力の値が大きい大型の折曲加工装置を用いることなく板材Ｗに十分な押圧力を加えることができる。 According to the bending processing apparatus 101, each pressing die 137, 139 can be selectively pressed when pressing the plate material W, so that the maximum pressing force in the bending driving apparatus 113 is increased. Therefore, a sufficient pressing force can be applied to the plate material W, and the amount of boat warp or boat warp that occurs in the plate material W during bending can be easily kept within an allowable value. Accordingly, a sufficient pressing force can be applied to the plate material W without using a large-sized bending apparatus having a large maximum thrust value.
　また、折曲加工装置１０１によれば、各押圧型１３７，１３９のそれぞれが、前後方向に移動することで、上記選択がなされるように構成されているので、簡素な構成で板材を押圧する押圧型の選択をすることができる。 Moreover, according to the bending processing apparatus 101, since each of the pressing dies 137 and 139 is configured to make the above selection by moving in the front-rear direction, the plate material is pressed with a simple configuration. A pressing type can be selected.
　また、折曲加工装置１０１によれば、別途機構やアクチュエータを用いることなく、バックゲージ１４３を用いた簡素な構成で、押圧される板材Ｗの面積（幅；図１８や図１９の寸法Ｌ１）を設定することができる。 Moreover, according to the bending apparatus 101, the area (width; dimension L1 of FIG. 18 and FIG. 19) of the board | plate material W pressed by simple structure using the back gauge 143, without using a mechanism and an actuator separately. Can be set.
　また、折曲加工装置１０１によれば、ヘミング加工部１５３が端面押圧部１０５によって構成されているので、別途ヘミング加工部を設けることなく簡素な構成で、板材Ｗにヘミング加工を施すことができる。
（第３の実施形態）
　第３の実施形態に係る折曲加工装置（プレスブレーキ；板材Ｗの加工装置）３０１では、板材Ｗの曲げ加工をすることが無い押圧金型３０３を用いて、板材Ｗの端部の押圧（切断によって生じた残留応力を調整するため押圧；板材Ｗを曲げ加工するときの反りを少なくするための押圧）とヘミング加工（ヘミング加工は必要な場合のみなされる）とをするようになっている点が、第１の実施形態に係る折曲加工装置１や第２の実施形態に係る折曲加工装置１０１と異なり、その他の点は、折曲加工装置１，１０１と同様に構成されており、同様に動作し同様の効果を奏するようになっている。 Moreover, according to the bending apparatus 101, since the hemming process part 153 is comprised by the end surface press part 105, hemming process can be given to the board | plate material W with a simple structure, without providing a separate hemming process part. .
(Third embodiment)
In the bending apparatus (press brake; processing apparatus for plate material W) 301 according to the third embodiment, a pressing mold 303 that does not bend the plate material W is used to press the end portion of the sheet material W ( Pressing to adjust the residual stress generated by cutting; pressing to reduce warpage when bending the plate material W) and hemming (hemming is performed only when necessary). The points are different from the bending apparatus 1 according to the first embodiment and the bending apparatus 101 according to the second embodiment, and the other points are configured in the same manner as the bending apparatuses 1 and 101. It operates in the same way and produces the same effect.
　第３の実施形態に係る板材の加工装置（加工装置）３０１は、たとえば、図１４で示す装置基台１０７と同様な装置基台３０２（図３０（ｂ）参照）を備えており、板材Ｗを加圧する加圧部（加圧手段）３０５と、この加圧部３０５で加圧される板材Ｗを受ける受け部（受け手段）３０７とを備えて構成される（図２６、図２７、図２９等参照）。 A plate material processing apparatus (processing apparatus) 301 according to the third embodiment includes, for example, an apparatus base 302 (see FIG. 30B) similar to the apparatus base 107 shown in FIG. And a receiving portion (receiving means) 307 for receiving the plate material W pressed by the pressing portion 305 (FIGS. 26, 27, and 27). 29 etc.).
　また、加工装置３０１は、端面押圧上型３０９と端面押圧下型３１１と端面押圧部３１３と端面押圧幅調節部（端面押圧幅調節機構）３１５とを備えて構成される。 Further, the processing apparatus 301 includes an end face pressing upper mold 309, an end face pressing lower mold 311, an end face pressing part 313, and an end face pressing width adjusting part (end face pressing width adjusting mechanism) 315.
　端面押圧上型３０９は、加圧部３０５からの加圧力を受けるように構成される。加圧部３０５は、装置基台３０２の上側に設けられた油圧シリンダ（図１３等で示す第２の実施形態に係る加工装置１０１の油圧シリンダ１６３と同様な油圧シリンダ）等のアクチュエータによって構成される。受け部３０７は、装置基台３０２の下側の部位によって構成される。 The end face pressing upper die 309 is configured to receive a pressing force from the pressurizing unit 305. The pressurizing unit 305 includes an actuator such as a hydraulic cylinder (a hydraulic cylinder similar to the hydraulic cylinder 163 of the processing apparatus 101 according to the second embodiment shown in FIG. 13 and the like) provided on the upper side of the apparatus base 302. The The receiving part 307 is configured by a lower part of the device base 302.
　端面押圧下型３１１は、端面押圧上型３０９に対向して受け部３０７側（下側）に設けられており、端面押圧上型３０９との間に板材Ｗの端面が挿入される。 The end face pressing lower mold 311 is provided on the receiving portion 307 side (lower side) facing the end face pressing upper mold 309, and the end face of the plate material W is inserted between the end face pressing upper mold 309.
　端面押圧部３１３では、加圧部３０９の加圧力により端面押圧上型３０９を端面押圧下型３１１側に相対的に移動して端面押圧上型３０９が下降することで、板材Ｗの加工前（折り曲げ加工前）の折曲線に沿う一方の端面３１９を押圧（加圧）する（図２７、図３０等参照）。換言すれば、端面押圧部３１３では、端面押圧上型３０９と端面押圧下型３１１との間すなわち加圧部３０５と受け部３０７との間で、端面押圧上型３０９と端面押圧下型３１１とによって板材Ｗを挟み込み、板材Ｗの端部をこの厚さ方向で押圧する。 In the end surface pressing portion 313, the end surface pressing upper die 309 is moved relatively to the end surface pressing lower die 311 side by the pressing force of the pressing portion 309 and the end surface pressing upper die 309 is lowered, so that the plate material W is processed ( One end surface 319 along the folding curve (before bending) is pressed (pressurized) (see FIG. 27, FIG. 30, etc.). In other words, in the end surface pressing portion 313, the end surface pressing upper die 309 and the end surface pressing lower die 311 are arranged between the end surface pressing upper die 309 and the end surface pressing lower die 311, that is, between the pressurizing portion 305 and the receiving portion 307. Thus, the plate material W is sandwiched and the end of the plate material W is pressed in the thickness direction.
　端面押圧幅調節部３１５は、端面押圧部３１３で板材Ｗの押圧をするときに、板材Ｗの端面３１０のところの押圧幅（Ｙ軸方向の寸法）を設定するものである。この設定により、板材Ｗの一方の端面の突き当て面（被突き当て面）３１９が、端面押圧上型３０９への加圧部３０５の加圧力の加圧中心（押圧中心）３１７よりも、端面押圧上型３０９と端面押圧下型３１１との間への板材Ｗの挿入方向（図３０では左から右に向かう方向；Ｙ軸方向で前から後に向かう方向）の手前側（Ｃ字形状の装置基台３０２とは反対側）に位置づけられる（図３０（ｂ）参照）。すなわち、被突き当て面３１９が、Ｙ軸方向で、加圧中心３１７よりも僅かに前側に位置し、さらに、板材Ｗの全体が、Ｙ軸方向で、突き当て面３１９よりも前側に位置づけられる。 The end surface pressing width adjusting unit 315 sets a pressing width (dimension in the Y-axis direction) at the end surface 310 of the plate material W when the end surface pressing unit 313 presses the plate material W. With this setting, the abutting surface (abutted surface) 319 of one end surface of the plate material W is more end surface than the pressing center (pressing center) 317 of the pressing force of the pressurizing unit 305 to the end surface pressing upper mold 309. The front side (C-shaped device) in the insertion direction of the plate material W between the pressing upper mold 309 and the end surface pressing lower mold 311 (the direction from left to right in FIG. 30; the direction from the front to the rear in the Y-axis direction) It is positioned on the side opposite to the base 302 (see FIG. 30B). That is, the abutted surface 319 is positioned slightly in front of the pressing center 317 in the Y-axis direction, and the entire plate W is positioned in front of the abutting surface 319 in the Y-axis direction. .
　また、端面押圧下型３１１は、第２の実施形態に係る加工装置１０１の場合と同様にして、Ｘ軸方向で端面押圧上型３０９との間で板材Ｗの端部を押圧可能な複数個の押圧型３２１（３２１Ａ～３２１Ｉ）に分割されている（図２６等参照）。 Further, the end face pressing lower mold 311 has a plurality of pieces capable of pressing the end portion of the plate material W with the end face pressing upper mold 309 in the X-axis direction in the same manner as the processing apparatus 101 according to the second embodiment. The pressing mold 321 (321A to 321I) is divided (see FIG. 26 and the like).
　これらの分割された各押圧型３２１は、板材Ｗの端面３１９のところを押圧するときに選択的に使用されるように（選択的に押圧可能なように）構成される。 Each of these divided pressing dies 321 is configured to be selectively used (so that it can be selectively pressed) when pressing the end surface 319 of the plate W.
　また、各押圧型３２１のそれぞれが、端面押圧上型３０９の端面押圧下型３１１側への駆動方向（Ｚ軸方向）に対して交差する方向（Ｙ軸方向）に移動することで、上記選択がなされるように構成される。 Further, each of the pressing dies 321 moves in the direction (Y-axis direction) intersecting the driving direction (Z-axis direction) of the end surface pressing upper mold 309 toward the end surface pressing lower mold 311 side. It is configured to be made.
　端面押圧幅調節部３１５は、各押圧型３２１のうちの一部の押圧型であって加工装置３０１のバックゲージ（図２６～図３０では図示せず）によって上記交差する方向（Ｙ軸方向）で移動位置決めされる押圧型（３２１Ｂ，３２１Ｄ，３２１Ｆ，３２１Ｈ）と、この押圧型に設けられ板材Ｗが突き当てられる突き当て（当接バー）３２３とを備えて構成される。 The end face pressing width adjustment unit 315 is a part of the pressing dies 321 and is in the direction intersecting with the back gauge (not shown in FIGS. 26 to 30) of the processing device 301 (Y-axis direction). And a pressing die (321B, 321D, 321F, 321H) that is moved and positioned, and an abutting (contact bar) 323 provided on the pressing die against which the plate material W is abutted.
　押圧型３２１Ａ，３２１Ｃ，３２１Ｅ，３２１Ｇ，３２１Ｉは、図示しない空気圧シリンダ等のアクチュエータで、Ｙ軸方向に移動する。 The pressing molds 321A, 321C, 321E, 321G, and 321I are moved in the Y-axis direction by an actuator such as a pneumatic cylinder (not shown).
　なお、突き当て３２３は、第２の実施形態に係る加工装置１０１の場合と同様にして、圧縮コイル３２５ばねにより上方に付勢される（図２９参照）。 Note that the abutment 323 is biased upward by the compression coil 325 spring in the same manner as in the processing apparatus 101 according to the second embodiment (see FIG. 29).
　また、加工装置３０１には、板材Ｗの端面をヘミング加工するヘミング加工部３２７が設けられている（図２８参照）。ヘミング加工部３２７は、端面押圧部３１３によって構成される。 Further, the processing device 301 is provided with a hemming processing portion 327 for hemming the end face of the plate material W (see FIG. 28). The hemming part 327 is configured by an end face pressing part 313.
　ところで、すでに理解されるように、端面押圧上型３０９と、端面押圧下型３１１と、端面押圧部３１３と、端面押圧幅調節部３１５とによって、加工装置（たとえばプレスブレーキ）３０１に設置されて使用される押圧金型３０３が形成される。 By the way, as already understood, the end surface pressing upper die 309, the end surface pressing lower die 311, the end surface pressing portion 313, and the end surface pressing width adjusting portion 315 are installed in the processing apparatus (for example, press brake) 301. A pressing mold 303 to be used is formed.
　加工装置３０１は、パンチとダイと加圧部３０５とを用いて板材Ｗに曲げ加工を施すものである。ただし、押圧金型３０３を使用して、板材Ｗを曲げ加工することなく板材Ｗを押圧する場合には、パンチとダイとは使用されない。パンチの代わりに、図２６等で示すような、下面が平面になっている端面押圧上型３０９が使用され、ダイの代わりに上面が平面になっている端面押圧下型３１１が使用される。 The processing apparatus 301 performs a bending process on the plate material W using a punch, a die, and a pressure unit 305. However, when the pressing material 303 is used to press the plate material W without bending the plate material W, the punch and the die are not used. Instead of the punch, an end face pressing upper die 309 having a flat lower surface as shown in FIG. 26 or the like is used, and an end face pressing lower die 311 having a flat upper surface is used instead of the die.
　また、上述したように、押圧金型３０３では、端面押圧下型３１１が、Ｘ軸方向で複数の押圧型３２１（３２１Ａ～３２１Ｉ）に分割されており、板材Ｗの曲げ線に沿う端面３１９側の部位を押圧するときには、分割がされている各押圧型３２１を選択的に使用できるように構成される。各押圧型３２１のそれぞれがＹ軸方向に移動することで、上記選択がなされるように構成される。各押圧型３２１のうちの一部の押圧型すなわち突き当て３２３が設けられている押圧型は、加工装置３０１のバックゲージによってＹ軸方向で移動位置決めされるように構成される。 Further, as described above, in the pressing mold 303, the end surface pressing lower mold 311 is divided into a plurality of pressing molds 321 (321A to 321I) in the X-axis direction, and the end surface 319 side along the bending line of the plate material W is provided. When pressing the part, each of the divided pressing molds 321 can be selectively used. Each of the pressing molds 321 is configured to make the above selection by moving in the Y-axis direction. Among the pressing dies 321, a part of the pressing dies, that is, the pressing dies provided with the butting 323 are configured to be moved and positioned in the Y-axis direction by the back gauge of the processing device 301.
　さらに、押圧金型３０３には、ヘミング加工部３２７が設けられており、ヘミング加工部３２７は、端面押圧部３１３によって構成される。 Furthermore, the pressing mold 303 is provided with a hemming processing portion 327, and the hemming processing portion 327 is constituted by an end surface pressing portion 313.
　加工装置３０１によれば、端面押圧部３１３で板材Ｗを押圧するときに、板材Ｗの端面３１９および板材Ｗの全体とがＣ字形状の装置基台３０２とは反対側に位置しているので（図３０参照）、板材Ｗを曲げ加工するときの反りを少なくするためになされる板材Ｗの押圧を確実に行うことができる。 According to the processing device 301, when the plate material W is pressed by the end surface pressing portion 313, the end surface 319 of the plate material W and the entire plate material W are located on the opposite side of the C-shaped device base 302. (Refer FIG. 30) The press of the board | plate material W made in order to reduce the curvature when bending the board | plate material W can be performed reliably.
　すなわち、図３０（ａ）で示すようにして板材の端面３１９のところを押圧する場合、押圧の中心３１７に対して板材ＷがＣ字形状の装置基台３０２とは反対側に位置しておりしかも装置基台３０２等が完全な剛体ではないので、端面押圧上型３０９（端面押圧下型３１１）にモーメント（図３０の矢印ＭＴ参照）が発生し、装置基台３０２等にごくわずかな弾性変形（撓み）が発生し、端面押圧上型３０９（端面押圧下型３１１）がごく僅かに傾く（図３０（ｂ）参照）。なお、図３０（ｂ）では、端面押圧上型３０９の傾きを誇張して描いてある。 That is, when pressing the end surface 319 of the plate material as shown in FIG. 30A, the plate material W is positioned on the opposite side of the C-shaped device base 302 with respect to the center 317 of the press. Moreover, since the device base 302 or the like is not a perfect rigid body, a moment (see an arrow MT in FIG. 30) is generated in the end surface pressing upper die 309 (end surface pressing lower die 311), and the device base 302 or the like has very little elasticity. Deformation (deflection) occurs, and the end surface pressing upper mold 309 (end surface pressing lower mold 311) is slightly inclined (see FIG. 30B). In FIG. 30B, the inclination of the end face pressing upper mold 309 is exaggerated.
　上述したモーメントＭＴによるごく僅かな傾きにより、板材Ｗの端３１９に他の部位よりも大きい最大の押圧力がかかる。これによって、板材Ｗの押圧を正確にしかも確実に行うことができ、板材Ｗを曲げ加工したときに発生する舟反りの量を確実に小さくすることができる。 に よ り Due to the slight inclination caused by the moment MT described above, the maximum pressing force is applied to the end 319 of the plate material W larger than other portions. Accordingly, the plate material W can be pressed accurately and reliably, and the amount of boat warpage that occurs when the plate material W is bent can be reliably reduced.
　ところで、各押圧型３２１Ｂ，３２１Ｄ，３２１Ｆ，３２１Ｈのそれぞれに設けられている突き当て３２３が、Ｚ軸方向に移動せず、各押圧型３２１Ｂ，３２１Ｄ，３２１Ｆ，３２１Ｈのそれぞれに一体的に設けられており、突き当て３２３の高さが一定になっていてもよい。 By the way, the abutment 323 provided in each of the pressing dies 321B, 321D, 321F, 321H does not move in the Z-axis direction, and is provided integrally with each of the pressing dies 321B, 321D, 321F, 321H. The height of the abutment 323 may be constant.
　この場合、突き当て３２３と下降した端面押圧上型３０９との干渉を避けるために、端面押圧上型３０９に、突き当て３２３が入り込む凹部（図示せず）が設けられているものとする。 In this case, in order to avoid interference between the abutting 323 and the lowered end face pressing upper mold 309, the end pressing upper mold 309 is provided with a recess (not shown) into which the abutting 323 enters.
　なお、板材Ｗの厚さの値が、突き当て３２３の突出高さの値よりも大きければ、突き当て３２３が入り込む凹部を端面押圧上型３０９に設ける必要は無い。 In addition, if the value of the thickness of the plate material W is larger than the value of the protrusion height of the abutment 323, it is not necessary to provide the end face pressing upper die 309 with a recess into which the abutment 323 enters.
　さらに、各押圧型３２１Ｂ，３２１Ｄ，３２１Ｆ，３２１ＨのそれぞれをＹ軸方向で固定してもよい。 Further, each of the pressing dies 321B, 321D, 321F, 321H may be fixed in the Y-axis direction.
　また、図１３で示す各金型設置体１２１Ａ，１２１Ｂ，１２１Ｃのうちの少なくとも１つの金型設置体を、押圧金型３０３に置き換えてもよい。この場合、パスライン（金型ハイト）が等しくなっているものとする。 Further, at least one of the mold installation bodies 121A, 121B, 121C shown in FIG. 13 may be replaced with the pressing mold 303. In this case, it is assumed that the pass lines (die height) are equal.
　本発明の技術的側面によれば、板材を曲げ加工するときの反りを少なくするためになされる板材の押圧を正確に行うことができる。 According to the technical aspect of the present invention, it is possible to accurately press the plate material to reduce warpage when bending the plate material.
　さらに、本発明の他の技術的側面によれば、板材の折り曲げを行う折曲押圧部と、反りを抑制するために板材の端面を押圧する端面押圧部とを一つの装置基台に設けているため、一台の装置で板材の端面の押圧と曲げ加工を行うことができ、しかも板材の取り回しが容易で、作業性を向上させることができる。
（米国指定）
　本国際特許出願は米国指定に関し、２０１１年１１月４日に出願された日本国特許出願第２０１１－２４２５０１号および２０１２年１０月１２日に出願された日本国特許出願第２０１２－２２６７２４号について米国特許法第１１９条（ａ）に基づく優先権の利益を援用し、当該開示内容を引用する。 Furthermore, according to another technical aspect of the present invention, a bending press portion for bending a plate material and an end surface press portion for pressing the end surface of the plate material to suppress warpage are provided on one apparatus base. Therefore, it is possible to press and bend the end face of the plate material with a single device, and it is easy to handle the plate material, and workability can be improved.
(US designation)
This international patent application relates to the designation of the United States of America with respect to Japanese Patent Application No. 2011-242501 filed on November 4, 2011 and Japanese Patent Application No. 2012-226724 filed on October 12, 2012. The benefit of the priority right based on Patent Act Section 119 (a) is incorporated and the disclosure content is cited.

Claims (26)

  1. 　板材を加圧する加圧部と、この加圧部で加圧される板材を受ける受け部とを備えた板材の加工装置であって、
    　前記加圧部からの加圧力を受ける端面押圧上型と、
    　前記端面押圧上型に対向して前記受け部側に設けられ、前記端面押圧上型との間に前記板材の端面が挿入される端面押圧下型と、
    　前記加圧部の加圧力により前記端面押圧上型を前記端面押圧下型側に相対的に移動することで、前記板材の加工前の折曲線に沿う一方の端面を押圧する端面押圧部と、
    　前記端面押圧部で前記押圧をするときに、前記板材の一方の端面の突き当て面が、前記端面押圧上型への前記加圧部の加圧力の加圧中心よりも前記端面押圧上型と前記端面押圧下型との間への前記板材の挿入方向の手前側に位置するように、前記板材の端面の押圧幅を設定する端面押圧幅調節部と、
    　を有することを特徴とする板材の加工装置。     A plate material processing apparatus comprising a pressure unit that pressurizes a plate material, and a receiving unit that receives the plate material pressed by the pressure unit,
    An end face pressing upper die that receives pressure from the pressurizing part;
    An end face pressing lower mold, which is provided on the receiving portion side facing the end face pressing upper mold, and into which the end face of the plate member is inserted between the end face pressing upper mold,
    An end surface pressing portion that presses one end surface along the folding line before processing of the plate material by relatively moving the end surface pressing upper die to the end surface pressing lower die side by the pressing force of the pressing portion;
    When the pressing is performed by the end surface pressing portion, the abutting surface of one end surface of the plate member is more than the end surface pressing upper die than the pressing center of the pressing force of the pressing portion to the end surface pressing upper die. An end surface pressing width adjusting unit that sets a pressing width of the end surface of the plate material so as to be positioned on the near side in the insertion direction of the plate material between the end surface pressing lower mold;
    An apparatus for processing a plate material, comprising:
  2. 　請求項１に記載の板材の加工装置において、
    　前記端面押圧下型は、前記端面押圧上型との間で前記板材の端部を押圧可能な複数個の押圧型に分割されており、
    　これらの分割された各押圧型は、前記板材の端面を押圧するときに選択的に使用されるように構成されていることを特徴とする板材の加工装置。     In the processing apparatus of the board | plate material of Claim 1,
    The lower end surface pressing mold is divided into a plurality of pressing molds capable of pressing the end of the plate member with the upper end surface pressing mold.
    Each of the divided pressing dies is configured to be selectively used when pressing the end face of the plate material.
  3. 　請求項２に記載の板材の加工装置において、
    　前記各押圧型のそれぞれが、前記端面押圧上型の前記端面押圧下型側への駆動方向に対して交差する方向に移動することで、前記選択がなされるように構成されていることを特徴とする板材の加工装置。     In the processing apparatus of the board | plate material of Claim 2,
    Each of the pressing dies is configured to make the selection by moving in a direction intersecting the driving direction of the end face pressing upper mold toward the end face pressing lower mold side. Plate material processing equipment.
  4. 　請求項３記載の板材の加工装置であって、
    　前記端面押圧幅調節部は、前記各押圧型のうちの一部の押圧型であって前記加工装置のバックゲージによって前記交差する方向で移動位置決めされる押圧型と、この押圧型に設けられ前記板材が突き当てられる突き当てとを備えて構成されていることを特徴とする板材の加工装置。     It is a processing apparatus of the board | plate material of Claim 3, Comprising:
    The end face pressing width adjusting portion is a pressing die that is a part of the pressing dies and is moved and positioned in the intersecting direction by a back gauge of the processing device, and the pressing die is provided on the pressing die. An apparatus for processing a plate material, comprising: an abutment against which the plate material is abutted.
  5. 　請求項１～請求項４のいずれか１項に記載の板材の加工装置において、
    　前記板材をヘミング加工するヘミング加工部を有することを特徴とする板材の加工装置。     In the plate material processing apparatus according to any one of claims 1 to 4,
    An apparatus for processing a plate material, comprising: a hemming section for hemming the plate material.
  6. 　請求項５に記載の板材の加工装置において、
    　前記ヘミング加工部は、前記端面押圧部によって構成されていることを特徴とする板材の加工装置。     In the processing apparatus of the board | plate material of Claim 5,
    The said hemming process part is comprised by the said end surface press part, The processing apparatus of the board | plate material characterized by the above-mentioned.
  7. 　請求項１に記載の板材の加工装置において、
    　前記加圧部の加圧力を発生させる駆動装置を備え、
    　前記加圧部からの加圧力を受けて前記板材を押圧する押圧パンチ側部材と、この押圧された板材を受ける受け部側に設けられたダイを備えたダイ側部材とからなり、前記パンチと前記ダイとの間で前記板材を折り曲げ加工する折曲加工部が、前記端面押圧部とともに一体に支持されていることを特徴とする板材の加工装置。     In the processing apparatus of the board | plate material of Claim 1,
    A driving device for generating a pressing force of the pressurizing unit;
    The punch comprises a pressing punch side member that receives pressure from the pressing portion and presses the plate material, and a die side member that includes a die provided on the receiving portion side that receives the pressed plate material. An apparatus for processing a plate material, wherein a bending portion for bending the plate material with the die is supported integrally with the end surface pressing portion.
  8. 　請求項７に記載の板材の加工装置であって、
    　前記下側端面押圧型は、複数個に分割された分割型が、高さ位置が固定された固定型と、この固定型に隣接して設けられ前記固定型に対して高さ位置が変更可能な可動型とからなり、前記可動型の高さ位置を変更する高さ調節機構を有することを特徴とする板材の加工装置。     It is a processing apparatus of the board | plate material of Claim 7, Comprising:
    The lower end face pressing mold is divided into a plurality of divided molds, a fixed mold having a fixed height position, and a height position that can be changed relative to the fixed mold provided adjacent to the fixed mold. A plate material processing apparatus comprising a height adjustment mechanism that changes a height position of the movable mold.
  9. 　請求項７または請求項８に記載の板材の加工装置であって、
    　前記下側端面押圧型に出没自在に設けられ前記ダイ側部材と前記下側端面押圧型との間に挿入され前記下側端面押圧型上に載置された板材の一方の端面が当接する端面当接バーと、この端面当接バーと共に前記下側端面押圧型を前記パンチの前記ダイへの押圧方向に対して交差する方向に可動させる可動部とからなり、
    　前記板材の一方の端面から押圧面の押圧幅を調節する押圧幅調節機構を有することを特徴とする板材の加工装置。     It is a processing apparatus of the board | plate material of Claim 7 or Claim 8, Comprising:
    An end face that is provided in the lower end face pressing mold so as to be able to move in and out, is inserted between the die side member and the lower end face pressing mold, and contacts one end face of the plate material placed on the lower end face pressing mold. A contact bar, and a movable portion that moves the lower end face pressing die together with the end face contact bar in a direction intersecting the pressing direction of the punch to the die,
    An apparatus for processing a plate material, comprising: a pressing width adjusting mechanism for adjusting a pressing width of a pressing surface from one end surface of the plate material.
  10. 　請求項７～請求項９のいずれか１項に記載の板材の加工装置であって、
    　前記ダイ側部材が前記駆動装置の折り曲げ駆動力によって前記下側端面押圧型の方向へ移動して前記板材の一方の端面を下側端面押圧型との間で押圧することを特徴とする板材の加工装置。     A plate material processing apparatus according to any one of claims 7 to 9,
    The die-side member is moved in the direction of the lower end face pressing die by a bending driving force of the driving device and presses one end face of the plate member with the lower end face pressing die. Processing equipment.
  11. 　請求項７～請求項１０のいずれか１項に記載の板材の加工装置であって、
    　前記ダイ側部材が下部テーブルと、前記ダイを前記下部テーブルに支持するダイホルダとによって形成され、前記下部テーブルには上側端面押圧型が設けられ、前記下部テーブルは前記駆動装置による前記ダイ側への前記パンチの押圧により前記下側端面押圧型の方向へ移動可能で前記下側端面押圧型との間で前記板材の一方の端面を押圧することを特徴とする板材の加工装置。     A plate material processing apparatus according to any one of claims 7 to 10,
    The die side member is formed by a lower table and a die holder that supports the die on the lower table, the lower table is provided with an upper end face pressing die, and the lower table is moved to the die side by the driving device. An apparatus for processing a plate material, which is movable in the direction of the lower end surface pressing die by pressing the punch and presses one end surface of the plate material with the lower end surface pressing die.
  12. 　請求項８に記載の板材の加工装置であって、
    　前記高さ調節機構は、前記可動型を前記ダイ側部材の方向又は前記ダイ側部材から離隔する方向へ移動して前記可動型の高さ位置を調整することを特徴とする板材の加工装置。     It is a processing apparatus of the board | plate material of Claim 8, Comprising:
    The height adjusting mechanism adjusts the height position of the movable mold by moving the movable mold in a direction of the die side member or in a direction away from the die side member.
  13. 　請求項７～請求項１２のいずれか１項に記載の板材の加工装置であって、
    　前記板材をヘミング加工するヘミング加工部を有することを特徴とする板材の加工装置。     A plate material processing apparatus according to any one of claims 7 to 12,
    An apparatus for processing a plate material, comprising: a hemming section for hemming the plate material.
  14. 　請求項１３に記載の板材の加工装置であって、
    　前記ヘミング加工部は、前記端面押圧部によって構成されていることを特徴とする板材の加工装置。     It is a processing apparatus of the board | plate material of Claim 13, Comprising:
    The said hemming process part is comprised by the said end surface press part, The processing apparatus of the board | plate material characterized by the above-mentioned.
  15. 　パンチとダイと加圧部とを用いて板材に曲げ加工を施す加工装置に設置されて使用される押圧金型において、
    　前パンチを前記ダイ側に駆動する加圧部からの加圧力を受ける端面押圧上型と、
    　前記端面押圧上型に対向して設けられ、前記端面押圧上型との間に前記板材の端面が挿入される端面押圧下型と、
    　前記加圧部の加圧力により前記端面押圧上型を端面押圧下型側に移動することで、前記板材の加工前の折曲線に沿う一方の端面を押圧する端面押圧部と、
    　前記端面押圧部で前記押圧をするときに、前記板材の一方の端面の突き当て面が、前記端面押圧上型への前記加圧部の加圧力の加圧中心よりも前記端面押圧上型と前記端面押圧下型との間への前記板材の挿入方向の手前側に位置するように、前記板材の端面の押圧幅を設定する端面押圧幅調節部と、
    　を有することを特徴とする押圧金型。     In a pressing die used by being installed in a processing apparatus that performs bending on a plate material using a punch, a die and a pressure part,
    An end face pressing upper die that receives a pressing force from a pressure unit that drives the front punch to the die side;
    An end face pressing lower mold provided opposite to the end face pressing upper mold, and an end face of the plate member inserted between the end face pressing upper mold,
    By moving the end face pressing upper mold to the end face pressing lower mold side by the pressing force of the pressurizing section, an end face pressing section that presses one end face along the folding line before processing the plate material; and
    When the pressing is performed by the end surface pressing portion, the abutting surface of one end surface of the plate member is more than the end surface pressing upper die than the pressing center of the pressing force of the pressing portion to the end surface pressing upper die. An end surface pressing width adjusting unit that sets a pressing width of the end surface of the plate material so as to be positioned on the near side in the insertion direction of the plate material between the end surface pressing lower mold;
    A pressing mold characterized by comprising:
  16. 　請求項１５に記載の押圧金型において、
    　前記端面押圧下型は、前記板材の曲げ加工の曲げ線の方向で複数の押圧型に分割されており、前記板材の曲げ線に沿う端面側の部位を押圧するときには、前記分割がされている各押圧型を選択的に使用できるように構成されていることを特徴とする押圧金型。     The pressing die according to claim 15,
    The lower end face pressing die is divided into a plurality of pressing dies in the direction of the bending line of the plate material bending, and is divided when the end surface side portion along the bending line of the plate material is pressed. A pressing die characterized in that each pressing die can be selectively used.
  17. 　請求項１６に記載の押圧金型において、
    　前記加圧部による前記パンチの前記ダイ側への駆動方向に対して交差する方向に、前記各押圧型のそれぞれが移動することで、前記選択がなされるように構成されていることを特徴とする押圧金型。     The pressing die according to claim 16,
    The selection is made by moving each of the pressing dies in a direction crossing the driving direction of the punch toward the die by the pressurizing unit. Pressing mold.
  18. 　請求項１７に記載の押圧金型において、
    　前記各押圧型のうちの一部の押圧型は、前記加工装置のバックゲージによって前記交差する方向で移動位置決めされるように構成されており、
    　前記バックゲージによって前記交差する方向に移動位置決めされる押圧型には、前記板材が突き当てられる突き当てが設けられていることを特徴とする押圧金型。     The pressing mold according to claim 17,
    Some of the pressing dies are configured to be moved and positioned in the intersecting direction by a back gauge of the processing device,
    The pressing die that is moved and positioned in the intersecting direction by the back gauge is provided with an abutting against which the plate material is abutted.
  19. 　請求項１５～請求項１８のいずれか１項に記載の押圧金型において、
    　前記板材をヘミング加工するヘミング加工部を有することを特徴とする押圧金型。     The pressing die according to any one of claims 15 to 18,
    A pressing die having a hemming portion for hemming the plate material.
  20. 　請求項１９に記載の押圧金型において、
    　前記ヘミング加工部は、前記端面押圧部によって構成されていることを特徴とする押圧金型。     The pressing die according to claim 19,
    The press die, wherein the hemming portion is constituted by the end face pressing portion.
  21. 　パンチとダイとを用いて板材に曲げ加工を施す加工装置に設置されて使用される金型設置体において、
    　前記ダイが設置される金型設置部と、
    　前記パンチと前記金型設置部に設置されたダイとで曲げ加工がされる前の板材の曲げ線に沿う端面側の部位を押圧する端面押圧部とを有し、
    　前記端面押圧部は、前記パンチと前記ダイとの加圧中心を間にして、前記加工装置の装置基台とは反対側に位置していることを特徴とする金型設置体。     In the mold installation body that is installed and used in a processing device that bends the plate using a punch and die,
    A mold installation part on which the die is installed;
    An end surface pressing portion that presses a portion on the end surface side along the bending line of the plate material before being bent by the punch and the die installed in the mold installation portion;
    The mold installation body, wherein the end surface pressing portion is located on the opposite side of the apparatus base of the processing apparatus with the pressing center between the punch and the die in between.
  22. 　請求項２１に記載の金型設置体において、
    　前記端面押圧部は、前記板材の曲げ加工の曲げ線の方向で複数の押圧型に分割されており、前記板材の曲げ線に沿う端面側の部位を押圧するときには、前記分割がされている各押圧型を選択的に使用できるように構成されていることを特徴とする金型設置体。     The mold installation body according to claim 21, wherein
    The end surface pressing portion is divided into a plurality of pressing dies in the direction of the bending line of the plate material bending process, and when the end surface side portion along the bending line of the plate material is pressed, the end surface pressing portion is divided. A mold installation body configured to selectively use a pressing mold.
  23. 　請求項２２に記載の金型設置体において、
    　前記パンチと前記金型設置部に設置されたダイとで前記板材に曲げ加工をするときの、前記パンチの前記ダイ側への駆動方向に対して交差する方向に、前記各押圧型のそれぞれが移動することで、前記選択がなされるように構成されていることを特徴とする金型設置体。     The mold installation body according to claim 22,
    Each of the pressing dies is in a direction intersecting with the driving direction of the punch toward the die when the plate is bent with the punch and the die installed in the mold installation portion. A mold installation body configured to make the selection by moving.
  24. 　請求項２３に記載の金型設置体において、
    　前記各押圧型のうちの一部の押圧型は、前記折曲加工装置のバックゲージによって前記交差する方向で移動位置決めされるように構成されており、
    　前記バックゲージによって前記交差する方向に移動位置決めされる押圧型には、前記板材が突き当てられる突き当てが設けられていることを特徴とする金型設置体。     The mold installation body according to claim 23,
    Some of the pressing dies are configured to be moved and positioned in the intersecting direction by a back gauge of the bending apparatus,
    A mold installation body, wherein the pressing mold that is moved and positioned in the intersecting direction by the back gauge is provided with an abutting against which the plate material is abutted.
  25. 　請求項２１～請求項２４のいずれか１項に記載の金型設置体において、
    　前記板材をヘミング加工するヘミング加工部を有することを特徴とする金型設置体。     The mold installation body according to any one of claims 21 to 24,
    A mold installation body comprising a hemming portion for hemming the plate material.
  26. 　請求項２５に記載の金型設置体において、
    　前記ヘミング加工部は、前記端面押圧部によって構成されていることを特徴とする金型設置体。     The mold installation body according to claim 25,
    The said hemming process part is comprised by the said end surface press part, The metal mold installation body characterized by the above-mentioned.
PCT/JP2012/078319 2011-11-04 2012-11-01 Plate material processing device, pressing mold, and pressing mold installation body WO2013065781A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN113877997A (en) * 2021-09-26 2022-01-04 珠海富士智能股份有限公司 Bending method

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015199122A (en) * 2014-04-01 2015-11-12 株式会社アマダホールディングス Press brake mold and hemming processing method
JP2020093304A (en) * 2014-04-01 2020-06-18 株式会社アマダ Press brake mold and hemming processing method
JP6318036B2 (en) * 2014-07-23 2018-04-25 株式会社アマダホールディングス Punch mold
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636115U (en) * 1986-06-26 1988-01-16
JPS6457922A (en) * 1987-08-28 1989-03-06 Maru Kikai Kogyo Center window working device for door panel
JPH10137852A (en) * 1996-11-11 1998-05-26 Murai Kogyo Kk Bending and flash mold
JP2000107817A (en) * 1998-10-05 2000-04-18 Amada Co Ltd Plate stock bending method and its device
JP2005177790A (en) * 2003-12-17 2005-07-07 Nisshin Steel Co Ltd Method for bending metallic sheet
JP2006015404A (en) * 2004-06-01 2006-01-19 Kobe Steel Ltd Bending method and forming die used for the method
JP2012157902A (en) * 2011-01-14 2012-08-23 Amada Co Ltd Method of bending plate material and device for increasing or decreasing residual stress

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07100539A (en) * 1993-09-30 1995-04-18 Nec Corp Die for press brake and crush bending method by using such die
JP3995351B2 (en) * 1998-11-11 2007-10-24 株式会社入野製作所 Plate processing machine
JP2005059058A (en) * 2003-08-12 2005-03-10 Shinya Mitsuyoshi Bending die for press
CN200991730Y (en) * 2006-12-22 2007-12-19 江苏国力锻压机床有限公司 Two edge folding mould of bending machine
CN201088992Y (en) * 2007-06-28 2008-07-23 杭宜银 Double-bending combination die
CN101554638A (en) * 2008-04-09 2009-10-14 鸿富锦精密工业（深圳）有限公司 Bending die
CN201223901Y (en) * 2008-07-11 2009-04-22 安徽联盟模具工业股份有限公司 Pneumatic double-blank pressing sheet metal bending mould

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636115U (en) * 1986-06-26 1988-01-16
JPS6457922A (en) * 1987-08-28 1989-03-06 Maru Kikai Kogyo Center window working device for door panel
JPH10137852A (en) * 1996-11-11 1998-05-26 Murai Kogyo Kk Bending and flash mold
JP2000107817A (en) * 1998-10-05 2000-04-18 Amada Co Ltd Plate stock bending method and its device
JP2005177790A (en) * 2003-12-17 2005-07-07 Nisshin Steel Co Ltd Method for bending metallic sheet
JP2006015404A (en) * 2004-06-01 2006-01-19 Kobe Steel Ltd Bending method and forming die used for the method
JP2012157902A (en) * 2011-01-14 2012-08-23 Amada Co Ltd Method of bending plate material and device for increasing or decreasing residual stress

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103521617A (en) * 2013-10-18 2014-01-22 无锡微研有限公司 Mold structure for adjusting air-conditioner fin radians
CN113877997A (en) * 2021-09-26 2022-01-04 珠海富士智能股份有限公司 Bending method
CN113877997B (en) * 2021-09-26 2024-04-19 珠海富士智能股份有限公司 Bending method

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CN103906587A (en) 2014-07-02

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