CN209379702U - Pinpoint bending machine can be achieved - Google Patents

Abstract

The utility model discloses one kind, and pinpoint bending machine can be achieved, and is related to bending mechanical equipment technical field；It includes pedestal, lower die and upper mold, and V-shaped groove is provided in lower die, and bending cutter corresponding with V-shaped groove is provided in upper mold；The modules A and module B that lower die includes the balance plate being horizontally set in pedestal and is oppositely arranged along balance plate, modules A and module B are respectively arranged with lozenges A and lozenges B in opposite side, the upper plane of lozenges A, lozenges B and balance plate constitutes V-shaped groove, the regulating mechanism for drive module A and module B relative movement, and the positioning mechanism A for locking modules A and module B after adjustment are provided in pedestal.By implementing the technical program, can the width effectively to lower die V-shaped groove be adjusted, enable the notch of upper mold cutter rapid alignment lower die V-shaped groove, improve the processing efficiency of plate, meet the machining accuracy of different-thickness plate.

Description

Pinpoint bending machine can be achieved

Technical field

The utility model relates to bending mechanical equipment technical fields, can be achieved more particularly to one kind pinpoint Bending machine.

Background technique

Bending machine is a kind of machine that bending can be carried out to plate, is divided into manual bending machine, hydraulic bending press and numerical control Bending machine.Numerical control bender includes steel upper mold and steel lower die, and steel upper mold, steel lower die are separately fixed at bending machine lathe On.Wherein upper mold is the tip-angled shape cutter with radius R, and lower die is the cuboid that top has V-shaped groove.In bending operation, people Plate is placed in steel lower die and is aligned by work, and steel upper mold is moved down by driving mechanism driving and pressed to plate, continue to Make plate continue to push with upper mold when lower mobile, be pressed into the V-shaped groove of lower die, while making under the collective effect of upper and lower mould Plate occurs bending and deformation.There is different requirements to the design of lower die V-shaped groove according to different plates thickness, light sheet is rolled over Curved processing, the wide plate pushed position that will lead to of lower die V-shaped groove are easy to produce offset, and the plate after bending is difficult to meet specified Bending angle, and then it is difficult to ensure the machining accuracy of plate；And for heavy-gauge sheeting Bending Processing, lower die V-shaped groove is narrow or and knife The corresponding inaccurate plate of tool, which will be unable to import properly, carries out bending in lower die V-shaped groove, and is easy to generate lower die V-shaped groove upper surface It is seriously worn.

The existing bending for different-thickness plate is often to require manual replacement the lower die of corresponding V-shaped groove width, replacement Upper mold cutter and the notch for capableing of corresponding lower die V-shaped groove are required afterwards, and by naked eyes constantly adjustment alignment position, influence plate folding Curved processing efficiency and alignment precision is not can guarantee.

Utility model content

Different V-shaped groove lower dies and then influence are needed replacing in order to solve existing bar folder when processing the steel plate of different-thickness Processing efficiency problem, the purpose of this utility model is to provide one kind, and pinpoint bending machine can be achieved, can be effectively to lower die V The width of shape slot is adjusted, and enables the notch of upper mold cutter rapid alignment lower die V-shaped groove, improves the processing effect of plate Rate meets the machining accuracy of different-thickness plate.

The utility model specifically uses following technical scheme to achieve the goals above:

Pinpoint bending machine can be achieved, including pedestal, lower die on the base is set and is arranged above lower die Upper mold, be provided with V-shaped groove in the lower die, bending cutter corresponding with V-shaped groove be provided in the upper mold；It further include driving The driving mechanism that the bending cutter is moved along V-shaped groove, the lower die include the balance plate being horizontally set in pedestal and edge The modules A and module B, the modules A and module B that balance plate is oppositely arranged are respectively arranged with lozenges A and wedge in opposite side The upper plane of shape face B, the lozenges A, lozenges B and balance plate constitutes the V-shaped groove, is provided in the pedestal for driving The regulating mechanism of dynamic modules A and module B relative movement, and the positioning mechanism for locking modules A and module B after adjustment A。

Optionally, the regulating mechanism is set to the lower section of balance plate, and limit sliding rail is offered in the middle part of balance plate, institute The bottom for stating modules A and module B passes through link block and passes through limit sliding rail to be connect with regulating mechanism.Mould is adjusted by regulating mechanism The relative position of block A and module B, and then adjust the width of the V-shaped groove of the upper plane composition of lozenges A, lozenges B and balance plate Size, for adapting to the plate progress bending to different-thickness, the design of balance plate is on the one hand for providing the support of V-shaped groove Face, the limit sliding rail designed on balance plate are used to limit the moving direction of modules A and module B, are convenient for accurate adjustment module A and mould The relative position of block B.

Optionally, the cross section of the limit sliding rail is in cross shape, is provided on the link block and the limit The cross interconnecting piece that sliding rail matches.It may make link block and the modules A on link block and module B and limit sliding rail Connection is reliable.

Optionally, the regulating mechanism includes the rotate gear for being fixed on balance plate bottom, is oppositely arranged along rotate gear And the first rack gear and the second rack gear being meshed with rotate gear, first rack gear are connect with the link block of modules A bottom, institute It states the second rack gear to connect with the link block of the bottom module B, the positioning mechanism A is for fixing the rotate gear.To avoid The depressed position that upper mold cutter is relocated after the width of adjusting V-shaped groove, designs the first rack gear of engagement opposite with rotate gear With the second rack gear, the first rack gear and the second rack gear tooth-shape structure are identical, to can be adjusted in synchronism by driving rotate gear rotation Modules A and module B are relatively moved along the center depressed position of V-shaped groove, can effectively adjust the spacing of lozenges A Yu lozenges B, And then it adjusts the width of V-shaped groove and not will cause the center depressed position of V-shaped groove and shift, and then avoid adjusting lower die V-arrangement The problem of redefining the depressed position of upper mold cutter is needed after the width of slot, enables upper mold cutter rapid alignment lower die V-arrangement The notch of slot improves the processing efficiency of plate.

Optionally, the regulating mechanism further include the vertical shaft being fixedly connected with rotate gear and by bevel gear with The horizontal rotating shaft of vertical rotating shaft transmission connection, the horizontal rotating shaft is extended on the outside of pedestal and is connect with rotational handle, described fixed Position mechanism A is rotated by limit levels shaft fixes rotate gear.Specifically, the upper end of vertical shaft by bearing block and is put down Weigh plate rotation connection, the lower end rotated vertically is rotatablely connected by bearing block and base bottom, rotate gear is fixed be set in it is perpendicular In straight shaft, and the rotational handle setting of rotate gear rotation will be driven in pedestal outside side wall by bevel gear, convenient for artificial It is accurate to adjust fixed rotate gear rotation, and then the displacement of adjustment module A and module B relative movement.

Optionally, the positioning mechanism A includes the locating piece being fixed on the outside of pedestal and the limit passed through for horizontal rotating shaft Position axis hole and the limiting slot that is arranged on locating piece, it is detachable that the horizontal rotating shaft by limit axis hole extends locating piece one end It is connected with locating cover, and is provided with the retention bead matched with the limiting slot on locating cover.Locating cover and horizontal rotating shaft The fixed form that end can be used clamping or be connected by screw to is detachably connected, and passes through the retention bead on locating cover Reliability positioning can be carried out to horizontal rotating shaft by matching with the limiting slot on locating piece.

Optionally, the locating piece is in the limit spiral shell being arranged radially for holding out against horizontal rotating shaft along the limit axis hole Bolt.Correspondingly, the threaded hole passed through for caging bolt is arranged radially along limit axis hole in locating piece, can further improve pair The locating effect of horizontal rotating shaft improves the stability locked to horizontal rotating shaft.

Optionally, it is provided with dial on the outside of the pedestal, is fixedly installed on the horizontal rotating shaft and dial phase Corresponding pointer.Accurately to adjust the rotational angle horizontally rotated, and then control module A and module B relative movement convenient for artificial Displacement, design dial in the outside of pedestal and design corresponding with dial pointer on horizontal rotating shaft, can be effective Adjust the rotational angle of horizontal rotating shaft, and can effective monitoring bending cutter horizontal rotating shaft during the depression process position stability, Improve the pushing accuracy of different-thickness plate.

Optionally, the bending cutter includes tool apron, blade and cutter head, and the upper end of the blade is equipped with to be connected with the tool apron The tool apron connection structure connect, the lower end of the blade are equipped with the tool bit connecting structure for being detachably connected with cutter head.Specifically, The cross section at the top of blade is T-shaped structure, and the top of T-shaped structure has two horizontal projections, is provided on tool apron convex with level The block matched is acted, and block is by forming stop configurations to blade on screw fixed frame；And on the side wall of blade lower end It is provided with limited block, limited block is formed with the mounting groove for installing cutter head in the width direction of blade, and limited block passes through spiral shell Bolt is fixed on blade lower end；So as to replace convenient for the cutter head having to bending tool, meet the need of different-thickness plate bending It wants, avoids the problem that replacing entire bending cutter in process causes increased costs, and can guarantee that the Fast Installation of cutter is fixed Sheet metal bending processing efficiency is improved in position.

Optionally, the positioning mechanism B for determining sheet metal bending position is additionally provided in the lower die.Existing sheet metal bending The preceding main bending position using the artificial determining plate that draws lines, it is difficult to guarantee the accuracy of sheet metal bending position；To improve plate The accuracy of bending position determines the bending position of plate using positioning mechanism B, avoids manually drawing lines inaccuracy and influencing processing The problem of efficiency, further increases the machining accuracy of plate, reduces the labor intensity being positioned manually.

As described above, the utility model at least has the following beneficial effects:

1. lower die is designed to modules A and module B by the utility model, the phase of regulating mechanism adjustment module A and module B are utilized To position, and then the width dimensions of the V-shaped groove of the upper plane composition of lozenges A, lozenges B and balance plate are adjusted, for adapting to Bending is carried out to the plate of different-thickness；The V-shaped groove lower die of the technical program no replacement is required different in width, and then avoid the need for weight The problem of new determination corresponding with V-shaped groove upper mold cutter depressed position, reduces labour and reduce the cost of replacement lower die, raising The processing efficiency of plate.

2. the regulating mechanism of the utility model adjustment module A and module B relative movement is gear & rack structure, with turning gear It takes turns the first rack gear being meshed and the second rack gear tooth-shape structure is identical, modules A and module B can be adjusted in synchronism along the center of V-shaped groove Depressed position relative movement, and then adjust the width of V-shaped groove and not will cause the center depressed position of V-shaped groove and shift, make Upper mold cutter is capable of the notch of rapid alignment lower die V-shaped groove and carries out bending work, improve the processing efficiency of plate and guarantee not The machining accuracy of stack pile plate.

3. the utility model is equipped with the positioning mechanism A for locking modules A and module B after adjustment, localization machine Structure A is set to pedestal outside side wall, convenient for artificial accurate adjusting and fixed rotate gear rotation, and then carries out to modules A and module B It locks, the limiting slot design in the retention bead and locating piece in the technical program on locating cover, and the diameter along limit axis hole Design to the caging bolt held out against to horizontal rotating shaft can carry out reliability locking to horizontal rotating shaft, meet to the machine of adjusting The position stability of structure and the modules A being connect with regulating mechanism and module B.

4. the utility model dial is provided on the side wall of pedestal and fixed with horizontal rotating shaft and with dial phase Corresponding pointer, convenient for manually accurately adjusting the rotational angle horizontally rotated, and can effective monitoring bending cutter in pushing process The position stability of middle horizontal rotating shaft improves the pushing accuracy of different-thickness plate.

5. the utility model is equipped with the blade and cutter head that are detachably connected, can convenient for the blade that has to bending tool and cutter head into Row replacement, meets the needs of different-thickness plate bending, avoids replacing entire bending cutter in process and causes increased costs The problem of, and can guarantee the Fast Installation positioning of cutter, improve sheet metal bending processing efficiency.

6. the utility model is equipped with the positioning mechanism B for determining sheet metal bending position, sheet metal bending position can be improved Accuracy determines the bending position of plate using positioning mechanism B, avoids traditional artificial setting-out inaccuracy and influences processing efficiency Problem further increases the machining accuracy of plate, reduces the labor intensity being positioned manually.

Detailed description of the invention

Fig. 1 is according to a kind of schematic diagram that pinpoint bending machine can be achieved of the utility model；

Fig. 2 is the schematic diagram of regulating mechanism in Fig. 1；

Fig. 3 is the connection schematic diagram of link block and balance plate in Fig. 1；

Fig. 4 is the schematic diagram of blade and cutter head in Fig. 1；

Fig. 5 is the schematic cross-sectional view of positioning mechanism B in Fig. 1.

Specific embodiment

It is further described below by specific embodiment:

Appended drawing reference in Figure of description include: 1- pedestal, 2- lower die, 21-V shape slot, 22- modules A, 23- module B, 24- lozenges A, 25- lozenges B, 26- balance plate, 3- upper mold, 31- bending cutter, 311- tool apron, 312- blade, 313- knife Head, 32- mounting plate, 4- hydraulic cylinder, 5- guide rail, 6- lead screw, 7- stepper motor, 8- regulating mechanism, 81- rotate gear, 82- first Rack gear, the second rack gear of 83-, the vertical shaft of 84-, 85- horizontal rotating shaft, 86- rotational handle, 87- link block, 88- limit sliding rail, 9- Positioning mechanism A, 91- locating piece, 92- limiting slot, 93- limit axis hole, 94- retention bead, 95- caging bolt, 10- dial, 11- pointer, 12- positioning mechanism B, 121- force piece, 122- guide post, 123- horizontal cavity, 124- limited block, 125- translation Block, 126- thrust screw rod, 127- horizontal through hole, 128- vertical marker post, 129- calibrating jig.

Implementation column 1

Embodiment is substantially as depicted in figs. 1 and 2: the present embodiment provides one kind, and pinpoint bending machine can be achieved, including Pedestal 1, the lower die 2 being arranged on pedestal 1 and the upper mold 3 that the top of lower die 2 is arranged in are provided with V-shaped groove 21 in lower die 2；On Bending cutter 31 corresponding with V-shaped groove 21 is provided on mould 3；The left end of pedestal 1 is fixedly installed with guide rail 5, and the left side of guide rail 5 is set It is equipped with the lead screw 6 being parallel to each other with guide rail 5, the lower end of lead screw 6 is rotatablely connected by bearing block and pedestal 1, and the upper end of lead screw 6 is logical It crosses rack to connect with guide rail 5, the stepper motor 7 for driving lead screw 6 to rotate is provided in rack, is arranged on guide rail 5 along water Square to extension mounting plate 32, mounting plate 32 and the upper plane of pedestal 1 be parallel to each other, and mounting plate 32 is set on lead screw 6 simultaneously It is threadedly coupled with it；It further include the driving mechanism for driving bending cutter 31 to move along V-shaped groove 21, driving machine provided in this embodiment Structure is hydraulic cylinder 4, and 4 ontology of hydraulic cylinder is bolted on mounting plate 32, and the output end of bending cutter 31 and hydraulic cylinder 4 connects Connect, and have 31 falling heads and punching press dynamics to bending tool by hydraulic cylinder 4 and control, with realize to the plate in lower die 2 into Row bending.

As shown in figure 4, bending cutter 31 includes tool apron 311, blade 312 and cutter head 313, the upper end of blade 312 be equipped with 311 connection structure of tool apron that tool apron 311 connects, tool apron 311 are fixedly connected with the output shaft of hydraulic cylinder 4, and the lower end of blade 312 is set There is 313 connection structure of cutter head for being detachably connected with cutter head 313；Specifically, the cross section at the top of blade 312 is T shape Structure, the top of T-shaped structure have two horizontal projections, are provided with the block matched with horizontal projection, and block on tool apron 311 By forming stop configurations to blade 312 on screw fixed frame；And limited block is provided on the side wall of 312 lower end of blade 124, limited block 124 is formed with the mounting groove for installing cutter head 313 in the width direction of blade 312, and limited block 124 passes through Bolt is fixed on 312 lower end of blade；So as to replace convenient for the cutter head 313 to bending tool tool 31, meet different-thickness plate The needs of material bending avoid the problem that replacing entire bending cutter 31 in process causes increased costs, and can guarantee cutter Fast Installation positioning, improve sheet metal bending processing efficiency.

Lower die 2 includes the balance plate 26 being horizontally set in pedestal 1 and 22 He of modules A being oppositely arranged along balance plate 26 Module B23, balance plate 26 are fixedly connected with pedestal 1, and modules A 22 and module B23 are set respectively along 26 middle part opposite side of balance plate It is equipped with lozenges A24 and lozenges B25, the upper plane composition V-shaped groove 21 of lozenges A24, lozenges B25 and balance plate 26, base The regulating mechanism 8 for drive module A22 and module B23 relative movement is provided in seat 1；Specifically, regulating mechanism 8 is set to flat It weighs the lower section of plate 26, and offers limit sliding rail 88 in the horizontal direction at the middle part of balance plate 26, modules A 22 and module B23's Bottom passes through link block 87 and connect across limit sliding rail 88 with regulating mechanism 8；As shown in figure 3, the cross section of limit sliding rail 88 In cross shape, link block 87 is provided with the cross interconnecting piece to match with limit sliding rail 88.Regulating mechanism 8 and link block 87 Connection adjusts link block 87 by regulating mechanism 8 and moves the opposite position come adjustment module A22 and module B23 along limit sliding rail 88 The width dimensions for the V-shaped groove 21 that the upper plane set, and then adjust lozenges A24, lozenges B25 and balance plate 26 is constituted, are used for It adapts to carry out the plate of different-thickness bending, on the one hand the design of balance plate 26 for providing the supporting surface of V-shaped groove 21, balances The limit sliding rail 88 designed on plate 26 is used to limit the moving direction of modules A 22 and module B23, is convenient for accurate adjustment module A22 With the relative position of module B23.

To avoid relocating the depressed position of 3 cutter of upper mold after the width for adjusting V-shaped groove 21, regulating mechanism 8 includes First for being fixed on the rotate gear 81 of 26 bottom of balance plate, being oppositely arranged along rotate gear 81 and being meshed with rotate gear 81 Rack gear 82 and the second rack gear 83, the first rack gear 82 are connect with the link block 87 of 22 bottom of modules A, the second rack gear 83 and module B23 The link block 87 of bottom connects, and positioning mechanism A9 is for fixing rotate gear 81；Specifically, the first rack gear 82 and the second rack gear 83 Tooth-shape structure is identical, to can be adjusted in synchronism modules A 22 and module B23 along V-shaped groove 21 by the driving rotation of rotate gear 81 Depressed position relative movement in center can effectively adjust the spacing of lozenges A24 Yu lozenges B25, and then adjust V-shaped groove 21 The width and center depressed position that not will cause V-shaped groove 21 shifts, and then after avoiding adjusting the width of lower die 2V shape slot 21 The problem of depressed position of 3 cutter of upper mold need to be redefined, enable the slot of 3 cutter rapid alignment lower die 2V shape slot 21 of upper mold Mouthful, improve the processing efficiency of plate.

Regulating mechanism 8 further includes the vertical shaft 84 being fixedly connected with rotate gear 81 and by bevel gear (not shown) With the horizontal rotating shaft 85 of vertical shaft 84 transmission connection, horizontal rotating shaft 85 extends to 1 outside of pedestal and connect with rotational handle 86, Positioning mechanism A9 fixes rotate gear 81 by the rotation of limit levels shaft 85.Specifically, the upper end of vertical shaft 84 passes through Bearing block and balance plate 26 are rotatablely connected, and the lower end rotated vertically is connect by bearing block with 1 lower rotation of pedestal, rotate gear 81 fixations are set in vertical shaft 84, and the rotational handle 86 for driving rotate gear 81 to rotate is arranged in base by bevel gear 1 outside side wall of seat rotates convenient for the artificial fixed rotate gear 81 of accurately adjusting, and then the opposite shifting of adjustment module A22 and module B23 Dynamic displacement.

It further include the positioning mechanism A9 for locking modules A 22 and module B23 after adjustment, positioning mechanism A9 includes solid It is scheduled on the locating piece 91 in the outside of pedestal 1 and the limit axis hole 93 passed through for horizontal rotating shaft 85 and the limit being arranged on locating piece 91 Position slot 92, horizontal rotating shaft 85 extend 91 one end of locating piece by limit axis hole 93 and are removably connected with locating cover, and locating cover On be provided with the retention bead 94 matched with the limiting slot 92.The end of locating cover and horizontal rotating shaft 85 can be used clamping or The fixed form being connected by screw to is detachably connected, and the present embodiment is equipped at the middle part of locating cover along 85 end of horizontal rotating shaft The screw that portion's axis hole extends, and being matched by the retention bead 94 on locating cover with the limiting slot 92 on locating piece 91 can be to water Flat turn axis 85 carries out reliability positioning.

And locating piece 91 is in the caging bolt being arranged radially for holding out against horizontal rotating shaft 85 along the limit axis hole 93 95；Correspondingly, it is arranged radially the threaded hole passed through for caging bolt 95 along limit axis hole 93 in locating piece 91, it can be further The locating effect to horizontal rotating shaft 85 is improved, the stability locked to horizontal rotating shaft 85 is improved.

Dial 10, this implementation to be provided on the outside of pedestal 1 convenient for manually accurately adjusting the rotational angle horizontally rotated Example dial 10 specifically in insertion 91 front side wall of locating piece, is fixedly installed finger corresponding with dial 10 on horizontal rotating shaft 85 Needle 11, pointer 11 can identify its rotational angle, and then adjustment module A22 and mould with the rotation of horizontal rotating shaft 85 by dial 10 The displacement of block B23 relative movement, can effectively adjust the rotational angle of horizontal rotating shaft 85, and can effective monitoring bending cutter 31 under The position stability of horizontal rotating shaft 85 during pressure improves the pushing accuracy of different-thickness plate.

The specific embodiment of the present embodiment: before bending to plate, lead screw 6 is driven by stepper motor 7 first The bending cutter 31 for rotating and then driving mounting plate 32 and hydraulic cylinder 4 on mounting plate 32 and connect with hydraulic cylinder 4 It moves along the vertical direction, adjusts the depression distance of upper mold 3；At the same time, water is adjusted by the rotational handle 86 in regulating mechanism 8 Flat turn turn it is dynamic so that by bevel gear, rack-and-pinion transmission effect adjustment module A22 and module B23 along V-shaped groove 21 The relative movement of heart depressed position, makes the width adequate of V-shaped groove 21 in the thickness of plate；Adjust 85 rotation process of horizontal rotating shaft In, it can accurately be adjusted by mark of the pointer 11 on dial 10, guarantee the accuracy to 21 width adjusting of V-shaped groove； And then pass through locating cover and caging bolt 95 in positioning mechanism A9 and horizontal rotating shaft 85 is fixed, exist for limiting plate Modules A 22 and module B23 are relatively moved in bending process, and then guarantee the pushing accuracy of different-thickness plate.

21 lower die 2 of V-shaped groove of the beneficial effect of the present embodiment further includes that no replacement is required different in width, and then avoid the need for weight The problem of new determination corresponding with V-shaped groove 21 3 cutter depressed position of upper mold, reduces labour and reduces the cost for replacing lower die 2, Improve the processing efficiency of plate.

Embodiment 2

Embodiment 2 is substantially the same manner as Example 1, the difference is that: as shown in Figure 1 and Figure 5, the present embodiment provides one Pinpoint bending machine can be achieved in kind, determines that the bending position of plate is difficult to ensure bending to solve conventionally employed artificial setting-out The problem of positional accuracy, the bending machine in the present embodiment further include the positioning mechanism B12 for determining sheet metal bending position, tool Body, positioning mechanism B12 include force piece 121, the guide post being fixed on module B23 122 and for limiting plate position Limited block 124, guide post 122 is interior to be equipped with horizontal cavity 123, is equipped in horizontal cavity 123 and is adapted with its cross sectional dimensions Translational block 125, the output axis connection of the right end of translational block 125 and force piece 121, level is extended in the left end of translational block 125 123 outside of cavity is clamped with limited block 124, translational block 125 can be driven to move horizontally by force piece 121 and be driven limited block 124 move along module B23, and limited block 124 is carried out for the distance between determining and V-shaped groove 21 and to plate right end charging length It limits；And then the bending position of plate is limited, avoiding the problem that manually drawing lines determines the bending position of plate.

To be positioned after pushing limited block 124 to designated position convenient for force piece 121, the force piece in the present embodiment 121 be motor, and the output shaft of motor is connected with thrust screw rod 126 by shaft coupling, and the right end of translational block 125 is equipped with and thrust The screw thread deep hole that screw rod 126 matches rotates using motor driven thrust screw rod 126 and then pushes translational block 125 and limit Position block 124 moves horizontally, and is defined to the charging length of plate, the design that thrust screw rod 126 is threadedly coupled with translational block 125 Structure can guarantee the position stability of limited block 124, and the design of horizontal cavity 123 can play guiding to the movement of limited block 124 Effect；Accurately to control the precision that plate feeds length, offers in the upper end of guide post 122 and be connected to horizontal cavity 123 Horizontal through hole 127, the vertical marker post 128 of perpendicular connection is provided in translational block 125, and in the upper of guide post 122 Side is provided with calibrating jig 129, and scale marker in the horizontal direction is provided on calibrating jig 129, and the upper end of vertical marker post 128 extends Horizontal through hole 127 and cooperate the moving displacement of scale marker instruction translational block 125 and limited block 124 out, and then can accurately adjust The distance between limited block 124 and V-shaped groove 21 are saved, plate is limited and feeds length, practicability is good.

The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model Structure change similarly should be included in the protection scope of the utility model.

Claims (10)

1. pinpoint bending machine can be realized, including pedestal, lower die on the base is set and is arranged in above lower die Upper mold is provided with V-shaped groove in the lower die, bending cutter corresponding with V-shaped groove is provided in the upper mold；It further include driving institute State the driving mechanism that bending cutter is moved along V-shaped groove, it is characterised in that: the lower die includes the balance being horizontally set in pedestal Plate and the modules A being oppositely arranged along balance plate and module B, the modules A and module B are respectively arranged with wedge shape in opposite side The upper plane of face A and lozenges B, the lozenges A, lozenges B and balance plate constitute the V-shaped groove, setting in the pedestal There is the regulating mechanism for drive module A and module B relative movement, and locks modules A and module B after adjustment Positioning mechanism A.

2. according to claim 1 can be achieved pinpoint bending machine, it is characterised in that: the regulating mechanism is set to flat The lower section of weighing apparatus plate, and limit sliding rail is offered in the middle part of balance plate, the bottom of the modules A and module B pass through link block It is connect across limit sliding rail with regulating mechanism.

3. according to claim 2 can be achieved pinpoint bending machine, it is characterised in that: described to limit the transversal of sliding rail Face is in cross shape, and the cross interconnecting piece to match with the limit sliding rail is provided on the link block.

4. according to claim 1-3 can be achieved pinpoint bending machine, it is characterised in that: the adjusting machine The first tooth that structure includes the rotate gear for being fixed on balance plate bottom, is oppositely arranged along rotate gear and is meshed with rotate gear Item and the second rack gear, first rack gear are connect with the link block of modules A bottom, the company of second rack gear and the bottom module B Block connection is connect, the positioning mechanism A is for fixing the rotate gear.

5. according to claim 4 can be achieved pinpoint bending machine, it is characterised in that: the regulating mechanism further includes The vertical shaft being fixedly connected with rotate gear and the horizontal rotating shaft being connect by bevel gear with vertical rotating shaft transmission, the water Flat turn axis is extended on the outside of pedestal and is connect with rotational handle, and the positioning mechanism A is rotated by limit levels shaft to be fixed Rotate gear.

6. according to claim 5 can be achieved pinpoint bending machine, it is characterised in that: the positioning mechanism A includes The locating piece that is fixed on the outside of pedestal and the limit axis hole passed through for horizontal rotating shaft and the limiting slot being arranged on locating piece, institute It states horizontal rotating shaft and extends locating piece one end by limiting axis hole and be removably connected with locating cover, and be provided on locating cover and institute State the retention bead that limiting slot matches.

7. according to claim 6 can be achieved pinpoint bending machine, it is characterised in that: the locating piece is along described Limit the caging bolt of axis hole being arranged radially for holding out against horizontal rotating shaft.

8. according to claim 6 can be achieved pinpoint bending machine, it is characterised in that: the outside of the pedestal is arranged There is dial, pointer corresponding with dial is fixedly installed on the horizontal rotating shaft.

9. according to claim 1 can be achieved pinpoint bending machine, it is characterised in that: the bending cutter includes knife Seat, blade and cutter head, the upper end of the blade are equipped with the tool apron connection structure connecting with the tool apron, and the lower end of the blade is set There is the tool bit connecting structure for being detachably connected with cutter head.

10. according to claim 1 can be achieved pinpoint bending machine, it is characterised in that: also set up in the lower die There is the positioning mechanism B for determining sheet metal bending position.