CN211161333U

CN211161333U - Bending machine

Info

Publication number: CN211161333U
Application number: CN201921986728.0U
Authority: CN
Inventors: 程磊
Original assignee: Xi'an Zhongshen Electric Co ltd
Current assignee: Xi'an Zhongshen Electric Co ltd
Priority date: 2019-11-16
Filing date: 2019-11-16
Publication date: 2020-08-04
Anticipated expiration: 2029-11-16

Abstract

The utility model discloses a bending machine relates to work piece processing technology field. The hydraulic press is characterized by comprising a base, wherein a supporting plate frame is arranged above the base, a hydraulic press is arranged at the bottom of the supporting plate frame, an upper bending die is arranged at one end, away from a hydraulic cylinder, of a piston rod of the hydraulic press, the upper bending die is opposite to the base, a lower bending die is arranged on the base opposite to the upper bending die, two opposite fixed blocks are arranged on the base, a chute is formed in the vertical direction of the opposite side walls of the fixed blocks, a limiting block is connected in the chute in a sliding manner, a compression roller is rotatably connected between the limiting blocks, a cam is abutted to the bottom of the limiting block and is connected with a driving piece, a through hole which vertically; the driving piece drives the cam to rotate, the height of the pressing roller is adjusted, the bolt is limited by the pressing roller, and therefore the bending machine can perform fastening and positioning on workpieces with different thicknesses.

Description

Bending machine

Technical Field

The utility model relates to a technical field of work piece processing, more specifically say, it relates to a bender.

Background

Bending is the most important link in sheet metal manufacturing, and the quality of bending directly influences the manufacturing of the subsequent process and the quality of the whole product. The bending machine mainly comprises a base, an upper die, a lower die, a hydraulic mechanism and the like, wherein the inner side surface of a workpiece bending part is subjected to compression deformation in the bending process, the outer side surface of the workpiece bending part is subjected to tensile deformation, the compression deformation and the tensile deformation are maximum on the surface of a material, and the deformation is gradually reduced along with the gradual penetration to the thick inner part; in order to improve the bending quality, the workpiece needs to be positioned in the bending process, so that the workpiece is prevented from being displaced due to stretching or compression.

The Chinese patent with the bulletin number of CN209424346U discloses a bending machine which is characterized by comprising a base, wherein a supporting plate is arranged above the base, a hydraulic telescopic component is fixed on the supporting plate and comprises a hydraulic column, a hydraulic push rod is arranged in the hydraulic column, a bending upper die is fixed at one end of the hydraulic push rod, a left guide rail and a right guide rail which are parallel to each other are arranged on two sides of the base, a flat plate is arranged on the base, sliding grooves matched with the left sliding rail and the right sliding rail are formed in two sides of the flat plate, a pressing roller is arranged between the flat plate and the base, a strip-shaped opening is formed in the flat plate, a L-shaped plate is arranged in the strip-shaped opening, one end of a L-shaped plate abuts against the upper end face of the flat plate, and the other end of a L-shaped plate penetrates out of the strip-shaped opening to be opposite to the base.

Although this scheme can carry out fastening position to the work piece at the in-process of bending, because the work piece that need bend often has different thickness, when work piece thickness is thinner, the compressing roller often can not be fine compresses tightly the work piece, when the thickness of work piece is thicker, the work piece can't pass through the compressing roller again, the bender that this kind of scheme provided can not satisfy the location that compresses tightly of the work piece of different thickness, does not have the universality.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a bender for the bender has the fastening locate function to different thickness work pieces.

The above technical purpose of the present invention can be achieved by the following technical solutions: a bending machine comprises a base, a supporting plate frame is arranged above the base, a hydraulic machine is arranged at the bottom of the supporting plate frame, a bending upper die is arranged at one end, away from the hydraulic cylinder, of a piston rod of the hydraulic machine, the bending upper die is opposite to the base, a bending lower die is arranged on the base, the bending lower die is opposite to the bending upper die, two fixed blocks which are opposite to each other are arranged on the base and close to the feeding direction of the bending upper die, sliding grooves are respectively arranged on the vertical directions of the opposite side walls of the two fixed blocks, the sliding groove is internally and slidably connected with a limiting block, a horizontally arranged compression roller is rotatably connected between the two limiting blocks, the bottoms of the two limiting blocks are abutted with a cam, the cam is connected with a driving piece, the top wall of the fixed block is provided with a through hole which vertically faces the chute, the through hole is internally threaded with a bolt, and a screw rod of the bolt abuts against the limiting block.

Through adopting above-mentioned technical scheme, driving piece drive cam rotates, adjusts the height of pinch roller, moves the bolt through the twisting, carries out spacingly to the position of pinch roller, has realized carrying out the purpose of fastening the position to the work piece of different thickness.

Further, the driving piece includes the installation pole of fixed connection in the cam axle center, the vertical lateral wall setting of spout is worn out to the installation pole, in one side that the cam was kept away from to the installation pole is provided with the handle, and the level is passed the handle is provided with spacing bolt, in be provided with the spacing hole of the round that corresponds with spacing bolt on the lateral wall that the fixed block is close to the handle, spacing bolt inserts spacing hole setting.

Through adopting above-mentioned technical scheme, through stretching out the fixed block setting with the installation pole to set up the handle on the installation pole, the operating personnel of being convenient for rotates the cam, and through setting up spacing hole and spacing bolt, take out spacing bolt from spacing hole and can rotate the handle and then drive the cam and rotate, after rotating to suitable position, through inserting spacing hole with spacing bolt, can accomplish the location to the compressing roller.

Furthermore, a groove corresponding to the screw of the bolt is formed in the side wall, close to the through hole, of the limiting block.

Through adopting above-mentioned technical scheme, the screw rod of bolt can be spacing to the setting of recess for the screw rod is perpendicular with the lateral wall that the stopper is close to the through-hole, has improved the spacing stability to the stopper, and then has improved the spacing stability to the compression roller.

Furthermore, the bottom of the limiting block is connected with a support, and the support is rotatably connected with a roller.

Through adopting above-mentioned technical scheme, through setting up the gyro wheel between stopper and cam for sliding friction between cam and the stopper becomes rotational friction, the rotation of the cam of being convenient for.

Further, the installation pole sets up to the telescopic link, including dead lever and slide bar, dead lever and cam fixed connection, slide bar and handle fixed connection are provided with the spline on the slide bar periphery wall, and dead lever cavity sets up and dead lever internal perisporium is provided with the keyway with spline matched with.

Through adopting above-mentioned technical scheme, will set up to the telescopic link through installing the pole, the operating personnel of being convenient for rotates the handle, the spacing of also being convenient for is tied and is cooperated with the installation in spacing hole.

Further, be connected with the mark pole that the level set up between the lateral wall of compression roller place fixed block, the mark pole is located between compression roller and the support grillage, and the mark pole is higher than the compression roller sets up, in set up the logical groove that sets up along mark pole axial direction on the mark pole, the cover is equipped with two chucking blocks on the mark pole, passes logical groove is provided with two double-screw bolts, the double-screw bolt is near the lateral wall that two chucking blocks carried on the back mutually respectively, double-screw bolt both ends threaded connection has the nut.

Through adopting above-mentioned technical scheme, along mark pole axial slip chucking piece for the chucking piece is unanimous with the width of work piece, then screws up the nut on the double-screw bolt, and one side that the nut is close to the mark pole and mark pole butt, realizes the spacing of chucking piece, can accomplish the chucking to the work piece.

Furthermore, one side of the nut close to the through groove is provided with a rubber gasket.

Through adopting above-mentioned technical scheme, the rubber gasket has increased the frictional force between dead lever outer wall and the nut, has further prevented that spacing bolt from following logical groove slip, better realization to the chucking of work piece.

Furthermore, the fixed rod is provided with scale marks.

By adopting the technical scheme, the scale marks are arranged on the fixing rod, so that an operator can conveniently clamp the workpiece at the middle position of the fixing block, and the workpiece can be conveniently bent between the upper die and the lower die.

To sum up, the beneficial effects of the utility model are that:

(1) the driving piece drives the cam to rotate, the height of the pressing roller is adjusted, the bolt is screwed, the position of the pressing roller is limited, and the purpose of tightly fixing workpieces with different thicknesses is achieved.

(2) Through setting up mark pole and chucking piece, along mark pole axial slip chucking piece for the chucking piece is unanimous with the width of work piece, then screws up the nut on the double-screw bolt, and one side that the nut is close to the mark pole and mark pole butt, realizes the spacing of chucking piece, can accomplish the chucking to the work piece.

Drawings

Fig. 1 is a schematic structural view of the bending machine of the present invention;

FIG. 2 is a schematic view of a mounting structure of a pressing roller and a clamping block, aiming at showing the working principle of the pressing roller and the clamping block;

FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 2;

fig. 4 is a schematic sectional view along the direction a-a in fig. 2.

Reference numerals: 1. a base; 2. a support plate frame; 3. a hydraulic press; 4. bending the upper die; 5. bending the lower die; 6. a fixed block; 7. a chute; 8. a limiting block; 9. a pressure roller; 10. a cam; 11. a drive member; 111. mounting a rod; 1110. fixing the rod; 1111. a slide bar; 1112. a spline; 112. a handle; 113. a limit bolt; 114. a limiting hole; 12. a through hole; 13. a bolt; 14. a groove; 15. a support; 16. a roller; 17. a marker post; 18. a through groove; 19. a clamping block; 20. a stud; 21. a nut; 22. a rubber gasket; 23. scale lines are marked.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a wire cutting machine, including base 1, base 1 top is provided with support grillage 2, support grillage 2 bottom is provided with hydraulic press 3, in this embodiment, hydraulic press 3 specifically sets up in the crossbeam bottom of support grillage 2, the one end that the pneumatic cylinder was kept away from to hydraulic press 3's piston rod is provided with mould 4 of bending, mould 4 is just right with base 1 on bending, be provided with the lower mould 5 of bending on base 1, in this embodiment, be provided with the draw-in groove on base 1, the 5 joints of lower mould of bending are in the draw-in groove of base 1, and bend lower mould 5 and bend and go up mould 4 just right mutually.

Referring to fig. 1 and 2, for realizing compressing tightly the work piece in vertical direction, the feeding direction that is close to mould 4 of bending on base 1 is provided with two just right fixed blocks 6, is provided with spout 7 respectively in the vertical direction of two fixed blocks 6 lateral walls in opposite directions, and sliding connection has stopper 8 in spout 7, rotates the compression roller 9 that is connected with the level and sets up between two stoppers 8.

Referring to fig. 2 and 3, in order to enable the bending machine to be suitable for workpieces with different thicknesses, two bottoms of the limiting blocks 8 are fixedly connected with a support 15, a roller 16 is rotatably connected to the support 15, the roller 16 abuts against the cam 10, the cam 10 is connected with a driving member 11, the driving member 11 comprises a mounting rod 111 fixedly connected to the axis of the cam 10, the mounting rod 111 penetrates through the vertical side wall of the chute 7, the mounting rod 111 is provided as a telescopic rod and comprises a fixing rod 1110 and a sliding rod 1111, a spline 1112 is arranged on the outer peripheral wall of the sliding rod 1111, the fixing rod 1110 is hollow, a key groove matched with the spline 1112 is arranged on the inner peripheral wall of the fixing rod 1110, the fixing rod 1110 is fixedly connected with the cam 10, a handle 112 is fixedly connected to one side of the sliding rod 1111, a limiting bolt 113 is horizontally penetrates through the handle 112, a circle of limiting hole 114 corresponding to the, the limiting bolts 113 are inserted into the limiting holes 114, in this embodiment, the number of the limiting holes 114 on any fixing block 6 is specifically set to 7, and the sides of the limiting holes 114 are marked with arabic numerals.

Referring to fig. 2 and 3, in order to limit the compressing roller 9 in the vertical direction, a through hole 12 facing the chute 7 is vertically formed in the top wall of the fixing block 6, a bolt 13 is connected to the inner thread of the through hole 12, a groove 14 corresponding to the screw of the bolt 13 is formed in the side wall, close to the through hole 12, of the limiting block 8, and the screw of the bolt 13 abuts against the bottom wall of the groove 14.

Further, referring to fig. 2 and 4, in order to achieve the purpose of horizontally clamping the workpiece, a marking rod 17 horizontally arranged is connected between the side walls of the fixing block 6 where the pressing roller 9 is located, the marking rod 17 is located between the pressing roller 9 and the supporting plate frame 2, the marking rod 17 is higher than the pressing roller 9, a through groove 18 arranged along the axial direction of the marking rod 17 is formed in the marking rod 17, two clamping blocks 19 are sleeved on the marking rod 17, two studs 20 are arranged by penetrating through the through groove 18, the studs 20 are respectively close to the side walls of the two clamping blocks 19 which are opposite to each other, and nuts 21 are connected to two ends of the studs 20 through threads.

Referring to fig. 4, for better clamping effect, a rubber gasket 22 is provided on the side of the nut 21 adjacent to the through slot 18.

Referring to fig. 1, in order to facilitate an operator to adjust the position of a workpiece in the horizontal direction, scale marks 23 are provided on the fixing lever 1110, and in this embodiment, the length of the scale mark 23 located at the midpoint is greater than the lengths of the remaining scale marks 23.

The specific working process is as follows: before a workpiece is bent, the workpiece is fixed, the workpiece is inserted into a space between a pressing roller 9 and a base 1, a part to be bent is moved to a space between an upper bending die 4 and a lower bending die 5, the position of the workpiece in the horizontal direction is adjusted, clamping blocks 19 are moved to two sides of the workpiece, screw rods are respectively moved to the side walls of the clamping blocks 19 departing from the workpiece, nuts 21 are rotated to enable the nuts 21 to be attached to mark rods 17, clamping of bolts 13 is achieved, clamping of the clamping blocks 19 is achieved, and therefore the purpose of clamping the workpiece in the horizontal direction is achieved; then, the mounting rod 111 is pulled in the direction away from the side wall of the fixing block 6, the sliding rod 1111 is pulled out from the fixing rod 1110, the limiting rod is pulled out from the limiting hole 114, the handle 112 is rotated to drive the cam 10 to rotate, the pressing roller 9 is adjusted to a proper position, the mounting rod 111 is pushed in the direction close to the side wall of the fixing block 6, the sliding rod 1111 enters the fixing rod 1110, the limiting rod is pushed into a new limiting hole 114, the height of the pressing roller 9 is adjusted, the screw of the bolt 13 is aligned with the groove 14, the bolt 13 is rotated, the screw of the bolt 13 abuts against the bottom wall of the groove 14, and the pressing roller 9 is limited from moving upwards.

When a workpiece is bent, the hydraulic cylinder is opened, and a piston rod of the hydraulic cylinder pushes the upper bending die 4 to move downwards to be matched with the lower bending die 5 so as to bend the workpiece.

After bending is finished, the nut 21 is rotated to enable the nut 21 to return to the two ends of the screw, the clamping block 19 is moved to enable the clamping block to be away from the two sides of the workpiece, the bolt 13 is rotated, the screw of the bolt 13 is away from the groove 14, then the mounting rod 111 is pulled in the direction away from the side wall of the fixing block 6, the sliding rod 1111 is pulled out of the fixing rod 1110, the limiting rod is pulled out of the limiting hole 114, the handle 112 is rotated to drive the cam 10 to rotate, the pressing roller 9 is adjusted to the highest position, then the mounting rod 111 is pushed in the direction close to the side wall of the fixing block 6, the sliding rod 1111 enters the fixing rod 1110, then the limiting rod is pushed into a new limiting hole 114, and the.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a bending machine, includes base (1), and base (1) top is provided with support grillage (2), support grillage (2) bottom is provided with hydraulic press (3), and the one end that the pneumatic cylinder was kept away from to the piston rod of hydraulic press (3) is provided with mould (4) of bending, it is just right mutually with base (1) to bend last mould (4), in be provided with on base (1) and bend lower mould (5), bend lower mould (5) and bend last mould (4) just mutually, its characterized in that: the feeding direction that is close to mould (4) of bending on base (1) is provided with two just right fixed blocks (6), is provided with spout (7) respectively in the vertical direction of two fixed block (6) lateral wall in opposite directions, sliding connection has stopper (8) in spout (7), rotates compressing roller (9) that are connected with the level and set up between two stopper (8), two stopper (8) bottom butt has cam (10), cam (10) are connected with driving piece (11), vertical through-hole (12) towards spout (7) are seted up to fixed block (6) roof, through-hole (12) female connection has bolt (13), the screw rod butt of bolt (13) is in on stopper (8).

2. Machine according to claim 1, characterized in that: driving piece (11) are including installation pole (111) of fixed connection in cam (10) axle center, the vertical lateral wall setting of spout (7) is worn out in installation pole (111), in one side that cam (10) were kept away from in installation pole (111) is provided with handle (112), and the level is passed handle (112) are provided with spacing bolt (113), in be provided with on the lateral wall that fixed block (6) are close to handle (112) the spacing hole (114) of round that correspond with spacing bolt (113), spacing bolt (113) insert spacing hole (114) set up.

3. Machine according to claim 1, characterized in that: and a groove (14) corresponding to a screw rod of the bolt (13) is formed in the side wall, close to the through hole (12), of the limiting block (8).

4. Machine according to claim 1, characterized in that: the bottom of the limiting block (8) is connected with a support (15), and the support (15) is rotatably connected with a roller (16).

5. Machine according to claim 2, characterized in that: installation pole (111) sets up to the telescopic link, including dead lever (1110) and slide bar (1111), dead lever (1110) and cam (10) fixed connection, slide bar (1111) and handle (112) fixed connection are provided with spline (1112) on slide bar (1111) periphery wall, and dead lever (1110) cavity setting and dead lever (1110) internal perisporium are provided with the keyway with spline (1112) matched with.

6. Machine according to claim 1, characterized in that: be connected with mark pole (17) that the level set up between the lateral wall of compressing roller (9) place fixed block (6), mark pole (17) are located compressing roller (9) and support grillage (2) between, and mark pole (17) are higher than compressing roller (9) set up, in set up on mark pole (17) and follow logical groove (18) that mark pole (17) axial direction set up, the cover is equipped with two chucking pieces (19) on mark pole (17), passes logical groove (18) are provided with two double-screw bolts (20), double-screw bolt (20) are respectively near the lateral wall that two chucking pieces (19) carried on the back mutually, double-screw bolt (20) both ends threaded connection has nut (21).

7. A bending machine according to claim 6, wherein: and a rubber gasket (22) is arranged on one side of the nut (21) close to the through groove (18).

8. A bending machine according to claim 6, wherein: the fixing rod (1110) is provided with scale marks (23).