CN207494256U - a bending machine - Google Patents

Abstract

The utility model discloses a bending machine, which comprises a frame (1), frame (1) on be equipped with feeding mechanism (2), feeding mechanism (2) one side be equipped with hold-down mechanism (3) that can compress tightly work piece (100), hold-down mechanism (3) one side be equipped with can be with the mechanism (4) of bending of work piece (100) in it. The utility model discloses simple structure, production efficiency is high, reduces the human cost.

Description

a bending machine

【Technical field】

The utility model relates to a bending machine.

【Background technique】

At present, the sheet metal process of sheet metal bending is ubiquitous in product production. For example, the production of chassis, electrical boxes and other products requires the use of bending machines to bend metal sheets. However, the traditional bending machine has the following shortcomings:

1. The structure is relatively complicated, and the feeding is done manually. Workers need to hold the plate and load it into the bending mechanism. The labor intensity of the workers is high and the work efficiency is low;

2. The hemming and pressing action of the traditional bending machine is driven by a hydraulic mechanism or a high-power motor is used to drive the pressure plate through a reduction mechanism for pressing. Therefore, the structure of the traditional bending machine is relatively complicated, inconvenient for maintenance, and takes up a lot of space. The hydraulic mechanism or driving motor has high power, high energy consumption and high production cost.

3. When bending the metal sheet, the bending parts can only bend the metal sheet into a fixed angle. If you need to fold multiple different bending angles on the same sheet metal, you need to replace different bending molds , low production efficiency and high production cost;

4. The width of the press die of the traditional bending machine is fixed. Folding and pressing each side of the metal sheet will press the edge again on the part that was originally folded, thus causing damage to the original edge. The traditional processing technology is to change the workpiece to another bending machine with a smaller die width for subsequent processing after one side is folded and pressed. Therefore, the traditional processing procedures are complicated and the production efficiency is low;

Therefore, the utility model just produces based on above deficiency.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a bending machine with simple structure, high production efficiency and reduced labor cost.

The utility model is achieved through the following technical solutions:

A bending machine, characterized in that it includes a frame 1, a feeding mechanism 2 is provided on the frame 1, and a pressing mechanism 3 capable of pressing a workpiece 100 is provided on one side of the feeding mechanism 2, so that One side of the pressing mechanism 3 is provided with a bending mechanism 4 capable of bending the workpiece 100 therein.

The above-mentioned bending machine is characterized in that: the pressing mechanism 3 includes a lower mold table 31 arranged on the frame 1, and an upper die 32 is arranged above the lower mold table 31. The frame 1 is provided with an upper die drive mechanism 33 that drives the upper die 32 to lift relative to the frame 1, and the upper die drive mechanism 33 includes a slide block 331 that can slide up and down relative to the frame 1. A pressure plate 332 is provided below the slider 331, the upper die 32 is connected to the pressure plate 332, and a pressure plate 332 is driven up and down between the slider 331 and the pressure plate 332 when the slider 331 moves up and down. The moving first link mechanism 333, the first link mechanism 333 includes a left upper link 3331 and a right upper link 3332 hinged on the slider 331, and the left upper link 3331 and the pressure plate 332 are arranged There is a left lower link 3333 hinged with the two, a right lower link 3334 hinged with the two is provided between the right upper link 3332 and the pressure plate 332, and the frame 1 is located outside the slider 331 The position is also hinged with a left outer link 3335 and a right outer link 3336, and the left outer link 3335 is hinged with the left lower link 3333, and the right outer link 3336 is hinged with the right lower link 3334.

The above-mentioned bending machine is characterized in that: the left outer link 3335, left upper link 3331 and left lower link 3333 are coaxially hinged; the right outer link 3336, right upper link 3332 and The three lower right connecting rods 3334 are coaxially hinged.

The above-mentioned bending machine is characterized in that: when the slider 331 moves downward, the angle between the left outer link 3335 and the left upper link 3331 gradually increases, and the right outer link The angle between 3336 and upper right link 3332 increases gradually.

The above-mentioned bending machine is characterized in that: the bending mechanism 4 includes a bending part 41 arranged on the frame 1 and located on the side of the pressing mechanism 3, and the frame 1 is provided with a drive The bending part 41 is a driving part 42 for moving up and down and left and right relative to the clamping mechanism 3 .

The above-mentioned bending machine is characterized in that: the bending part 41 includes a bending knife 411 that can push the workpiece 100 to bend the workpiece 100 when it moves up and down, and the driving part 42 includes a A crank link mechanism on the frame 1 that can drive the bending parts 41 to move up and down, the crank link mechanism includes a crank 421 that can rotate relative to the frame 1, and a crank 421 is provided between the crank 421 and the bending knife 411. There is a connecting rod 422 hinged with the two, and the frame 1 is also connected with a block 423 that can move up and down relative to it, and the block 423 is provided with an inclined slide rail 424, and the bending The knife 411 is provided with a chute that slides with the slide rail 424. When the crank 421 rotates and the block 423 moves up and down, the bending knife 411 slides against the inclined slide rail 424 to realize the relative compression of the bending parts 41. Mechanism 3 moves up and down and left and right.

The above-mentioned bending machine is characterized in that: the bending knife 411 includes a first bending edge 411a that pushes the workpiece 100 to bend upward when the bending part 41 moves upward, and the bending knife 411 also It includes a second bending edge 411b that can push the workpiece 100 to bend downward when the bending member 41 moves downward.

The above-mentioned bending machine is characterized in that: the pressure plate 332 is provided with a die adjustment mechanism 34 capable of adjusting the width of the upper die 32, and the upper die 32 includes a plurality of The module 321 that the pressure plate 332 slides laterally, the die adjustment mechanism 34 includes a sliding frame 341 that can slide laterally relative to the pressure plate 332, and the sliding frame 341 is provided with a module that can be engaged with the module 321 or can be inserted into the For the shift fork 342 between two adjacent modules 321 , the sliding frame 341 is provided with a driving assembly 343 capable of driving the shift fork 342 to engage with the module 321 or to engage between two adjacent modules 321 .

The above-mentioned bending machine is characterized in that: the shift fork 342 and the sliding frame 341 are hinged through the hinge shaft 344, and the driving assembly 343 includes a vertical strip hole 3431 arranged on the sliding frame 341, so The shift fork 342 is provided with an inclined strip hole 3432, and the vertical strip hole 3431 and the inclined strip hole 3432 are pierced with holes that can slide along the vertical strip hole 3431 and contact with the inclined strip during the sliding process. The hole wall of the shaped hole 3432 cooperates to push the horizontal push shaft 3433 that the shift fork 342 rotates relative to the sliding frame 341. The sliding frame 341 is provided with a pusher 3434 for pushing the pushing shaft 3433 to slide along the vertical strip hole 3431.

The above-mentioned bending machine is characterized in that: the feeding mechanism 2 includes a clamping part 21 capable of clamping the workpiece, and the feeding mechanism 2 further includes the clamping part 21 capable of driving and clamping the workpiece 100 to The pushing part 22 that moves forward, the pushing part 22 includes the moving frame 221 that can move back and forth relative to the frame 1, and the clamping part 21 includes an upper clamp that is arranged on the moving frame 221 and can lift and rotate platform 211 , the shifting frame 221 is also provided with a lower clamping platform 212 that can rotate relative to it and cooperate with the upper clamping platform 211 to clamp the workpiece 100 .

Compared with the prior art, the utility model has the following advantages:

1. The utility model bending machine includes a feeding mechanism. When the bending machine is working, the feeding mechanism sends the plate to be bent to the position of the pressing mechanism, and the bending mechanism performs bending processing. The entire loading and unloading It can be completed automatically, and the production efficiency is high. It is no longer necessary to manually feed the metal sheet to the position of the bending mechanism, which reduces the labor intensity of workers and saves labor costs. And the structure of the whole bending machine is also very simple and compact.

2. When the utility model is working, when the slider is moving downward, both sides of the slider push the upper left link and the upper right link hinged with it, and the upper left link pushes the lower left link and the outer left link outwards The hinged position of the right upper link pushes the hinged position of the right lower link and the right outer link outward. Since the left outer link and the right outer link are connected to a rigidly fixed frame, the left outer link During the outward movement of the connecting rod and the lower left connecting rod, the vertical force on the left lower connecting rod gradually increases, and at the same time, the vertical force on the right lower connecting rod also gradually increases. When the left lower link and the left outer link are close to collinear, and the right lower link and the right outer link are close to collinear, the vertical pressure on the pressure plate is close to infinity. Therefore, a large output force can be output when a small force is input, and the effect of increasing force can be achieved. Therefore, the required large output force can be achieved by using a small power motor or hydraulic motor and other driving components, which can reduce the volume of the machine and equipment, achieve the purpose of energy saving, and is suitable for various occasions that need to provide pressing force.

3. The bending part of the utility model includes a bending knife, which is driven by the crank-link mechanism to move the bending knife up and down to bend the metal plate. When the crank-link mechanism drives the bending knife to move up and down, the block is also relatively to the frame Move up and down, and the block body is provided with an inclined slide rail that slides and cooperates with the chute on the bending knife. Therefore, when the crank rotates and the block moves up and down, the bending knife not only moves up and down relative to the pressing mechanism but also moves left and right relative to the pressing mechanism, and the bending of the metal sheet can be controlled by controlling the rotation speed of the crank and the speed of the block moving up and down. Bending angle, the plate can be bent into different angles on the same bending machine, the design is very ingenious, and the structure is simple.

4. When the utility model is working, the sliding frame is driven to slide laterally on the pressure plate. When the sliding frame slides to the required position, the driving assembly drives the shift fork to move relative to the sliding frame so that the shift fork is engaged with the module or It is clamped between two adjacent modules, and then the sliding frame is driven again to slide laterally relative to the pressure plate. When the sliding frame slides again, the shift fork can exert a lateral thrust on the module on one side, thereby pushing The modules slide relative to the pressure plate, so that multiple modules can be separated to change the width of the required upper die, so that the width of the upper die can be adjusted freely. Therefore, when the number of modules pushed outward by the shift fork is large, the width of the upper die composed of the remaining modules is smaller; when the number of modules pushed outward by the shift fork is small, the upper die formed by the remaining modules The width is larger. Therefore, when the width of the workpiece changes during processing, the required width of the upper die can be adjusted through the action of the sliding frame and the fork, so that the width of the upper die can adapt to the width of the workpiece in actual processing. Therefore, the multilateral folding and crimping of the metal sheet can be completed on the same machine equipment, and the production efficiency is greatly improved.

5. The utility model has simple structure and high production efficiency. The multi-edge folding and pressing of the metal plate and the bending of the metal plate into different angles are completed on the same bending machine. The function is stronger, the production efficiency is greatly improved, and the enterprise is reduced Cost, suitable for popularization and application.

【Description of drawings】

Fig. 1 is a side view of the utility model;

Fig. 2 is one of the side views of the parts of the utility model;

Fig. 3 is one of schematic diagrams of the bending mechanism of the present utility model;

Fig. 4 is the second schematic diagram of the bending mechanism of the present invention;

Fig. 5 is the second side view of the parts of the utility model;

Fig. 6 is a three-dimensional schematic diagram of the die adjusting mechanism of the present invention;

Fig. 7 is one of the cross-sectional views of the die adjusting mechanism of the present invention;

Fig. 8 is the second sectional view of the die adjusting mechanism of the present invention;

Fig. 9 is a side view of the die adjusting mechanism of the present invention;

Fig. 10 is a side view of the feeding mechanism of the present utility model;

Fig. 11 is a schematic diagram of another embodiment of the bending mechanism of the present invention;

Fig. 12 is a schematic diagram of another embodiment of the die adjusting mechanism of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the utility model will be further described:

As shown in Figures 1 and 2, a bending machine includes a frame 1, the frame 1 is provided with a feeding mechanism 2, and one side of the feeding mechanism 2 is provided with a press that can compress the workpiece 100. Clamping mechanism 3, a bending mechanism 4 capable of bending the workpiece 100 inside is provided on one side of the pressing mechanism 3. The utility model bending machine includes a feeding mechanism 2. When the bending machine is working, the feeding mechanism 2 sends the plate to be bent to the position of the pressing mechanism 3, and the bending process is performed by the bending mechanism 4. The whole loading and unloading The materials can be completed automatically, and the production efficiency is high. It is no longer necessary to manually feed the metal sheet to the position of the bending mechanism, which reduces the labor intensity of workers and saves labor costs. And the structure of the whole bending machine is also very simple and compact.

As shown in Fig. 1, Fig. 2 and Fig. 5, described pressing mechanism 3 comprises the lower die table 31 that is located on the frame 1, and the top of described lower die table 31 is provided with upper die 32, described The frame 1 is provided with an upper die drive mechanism 33 that drives the upper die 32 to lift relative to the frame 1, and the upper die drive mechanism 33 includes a slide block 331 that can slide up and down relative to the frame 1. A pressure plate 332 is provided below the slider 331, the upper die 32 is connected to the pressure plate 332, and a pressure plate 332 is driven up and down between the slider 331 and the pressure plate 332 when the slider 331 moves up and down. The moving first link mechanism 333, the first link mechanism 333 includes a left upper link 3331 and a right upper link 3332 hinged on the slider 331, and the left upper link 3331 and the pressure plate 332 are arranged There is a left lower link 3333 hinged with the two, a right lower link 3334 hinged with the two is provided between the right upper link 3332 and the pressure plate 332, and the frame 1 is located outside the slider 331 The position is also hinged with a left outer link 3335 and a right outer link 3336, and the left outer link 3335 is hinged with the left lower link 3333, and the right outer link 3336 is hinged with the right lower link 3334.

As shown in Figures 2 and 5, the left outer link 3335, left upper link 3331 and left lower link 3333 are coaxially hinged; the right outer link 3336, right upper link 3332 and right lower link The three rods 3334 are coaxially hinged.

As shown in Figures 2 and 5, when the slider 331 moves downward, the angle between the left outer link 3335 and the left upper link 3331 gradually increases, and the right outer link 3336 and the right upper link gradually increase. The included angle of the connecting rod 3332 gradually increases.

As shown in Figures 2 and 5, during the downward movement of the slider 331, both sides of the slider 331 push the upper left link 3331 and the upper right link 3332 hinged thereto, and the upper left link 3331 pushes the lower left link outward. 3333 and the hinged position of the left outer link 3335, the upper right link 3332 then pushes the hinged position of the lower right link 3334 and the right outer link 3336 to the outside, because the left outer link 3335 and the right outer link 3335 are connected On the rigidly fixed frame 1, during the outward movement of the connecting position between the left outer link 3335 and the left lower link 3333, the vertical force on the left lower link 3333 gradually increases, and at the same time, The vertical force acting on the lower right link 3334 also increases gradually. When the lower left link 3333 and the left outer link 3335 are close to collinear, and the right lower link 3334 and the right outer link 3336 are close to collinear, the pressure plate 332 is subjected to vertical pressure close to infinity. Therefore, a large output force can be output when a small force is input, and the effect of increasing force can be achieved. Therefore, the required large output force can be achieved by using a small power motor or hydraulic motor and other driving components, which can reduce the volume of the machine and equipment, achieve the purpose of energy saving, and is suitable for various occasions that need to provide pressing force.

As shown in Fig. 1, Fig. 3 and Fig. 4, the described bending mechanism 4 includes a bending part 41 arranged on the frame 1 and located on one side of the pressing mechanism 3, and the described frame 1 is provided with a drive The bending part 41 is a driving part 42 for moving up and down and left and right relative to the clamping mechanism 3 .

As shown in Figures 1, 3 and 4, the bending part 41 includes a bending knife 411 that can push the workpiece 100 to bend the workpiece 100 when it moves up and down, and the driving part 42 includes a A crank link mechanism on the frame 1 that can drive the bending parts 41 to move up and down, the crank link mechanism includes a crank 421 that can rotate relative to the frame 1, and a crank 421 is provided between the crank 421 and the bending knife 411. There is a connecting rod 422 hinged with the two, and the frame 1 is also connected with a block 423 that can move up and down relative to it, and the block 423 is provided with an inclined slide rail 424, and the bending The knife 411 is provided with a chute that slides with the slide rail 424. When the crank 421 rotates and the block 423 moves up and down, the bending knife 411 slides against the inclined slide rail 424 to realize the relative compression of the bending parts 41. Mechanism 3 moves up and down and left and right.

As shown in Fig. 3 and Fig. 4, the crank-link mechanism drives the bending knife 411 to move up and down to bend the sheet metal, while the crank-link mechanism drives the bending knife 411 to move up and down, the block 423 also moves up and down relative to the frame 1 movement, and the block 423 is provided with an inclined slide rail 424 that is slidingly matched with the chute on the bending knife 411 . Therefore, when the crank 421 rotates and the block body 423 moves up and down, the bending knife 411 not only moves up and down relative to the pressing mechanism 3 but also moves left and right relative to the pressing mechanism 3, and by controlling the rotational speed of the crank 421 and the speed of the block body 423 moving up and down It can control the bending angle of the metal sheet, and can bend the sheet into different angles on the same bending machine. The design is very ingenious and the structure is simple. Of course, as shown in Figure 11, the block 423 can also move obliquely relative to the frame 1. In this embodiment, the slide rail 424 is vertically arranged, so when the crank 421 rotates and the block 423 moves obliquely, the The machete 411 not only moves up and down relative to the pressing mechanism 3 but also moves left and right relative to the pressing mechanism 3, and the bending angle of the sheet metal can be controlled by controlling the rotation speed of the crank 421 and the oblique movement speed of the block 423.

As shown in Figures 3 and 4, the bending knife 411 includes a first bending edge 411a that pushes the workpiece 100 to bend upward when the bending part 41 moves upward, and the bending knife 411 also includes a When the bending part 41 moves downward, it can push the second bending edge 411b that bends the workpiece 100 downward.

As shown in Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the pressure plate 332 is provided with a die adjustment mechanism 34 capable of adjusting the width of the upper die 32. 32 includes a plurality of modules 321 that are arranged in sequence and can slide laterally relative to the pressure plate 332. The die adjustment mechanism 34 includes a sliding frame 341 that can slide laterally relative to the pressure plate 332. The sliding frame 341 is provided with a The module 321 is clamped or can be clamped into the shift fork 342 between two adjacent modules 321, and the sliding frame 341 is provided with a drive that can drive the shift fork 342 and the module 321 is clamped or clamped into two adjacent modules. Drive assembly 343 between 321.

As shown in Figures 6 to 9, when the die adjustment mechanism 34 is working, the sliding frame 341 is driven to slide laterally on the relative pressure plate 332, and when the sliding frame 341 slides to the required position, the driving assembly 343 drives the shift fork 342 The relative sliding frame 341 moves so that the shift fork 342 and the module 321 are clamped or snapped between two adjacent modules 321, and then the sliding frame 341 is driven again to slide laterally relative to the pressure plate 332, and the sliding frame 341 is sliding again. During the process, the shift fork 342 can apply a lateral thrust to the module 321 on one side, thereby pushing the module 321 to slide relative to the pressure plate 332, so that multiple modules 321 can be separated, thereby changing the required width of the upper die 32 , so that the width of the upper die 32 can be adjusted freely. Therefore, when the number of modules 321 pushed outward by the shift fork 342 was large, the width of the mold formed by the remaining modules 321 was small; The width of the formed stamper is larger. Therefore, when the width of the workpiece 100 changes during processing, the required width of the die can be adjusted through the actions of the sliding frame 341 and the shift fork 342, so that the width of the die can adapt to the width of the workpiece in actual processing. Therefore, the multilateral folding and crimping of the metal sheet can be completed on the same machine equipment, and the production efficiency is greatly improved.

As shown in Figures 6 to 9, the shift fork 342 and the sliding frame 341 are hinged through a hinge shaft 344, and the driving assembly 343 includes a vertical strip hole 3431 arranged on the sliding frame 341, and the shifting The fork 342 is provided with an inclined strip hole 3432, and the vertical strip hole 3431 and the inclined strip hole 3432 are pierced with a strip that can slide along the vertical strip hole 3431 and align with the inclined strip hole 3432 during the sliding process. The hole wall cooperates to push the horizontal pushing shaft 3433 of the shift fork 342 to rotate relative to the sliding frame 341 , and the sliding frame 341 is provided with a pushing member 3434 for pushing the pushing shaft 3433 to slide along the vertical strip hole 3431 . When the pusher 3434 pushes the push shaft 3433, the push shaft 3433 slides along the vertical strip hole 3431. At the same time, the push shaft 3433 cooperates with the wall of the inclined strip hole 3432, thereby exerting force on the shift fork 342. Therefore, the shift fork 342 rotates relative to the sliding frame 341 through the hinge shaft 344 . Therefore, when the shift fork 342 is required to move the module 321 to one side, the shift fork 342 is rotated to a position between the modules 321 or between two adjacent modules 321; When pressing without needing the shift fork 342 to adjust the width of the upper die 32, the shift fork 342 is rotated to a position where it is disengaged from the module 321. The whole structure is ingeniously designed and the structure is also very simple. Certainly, as shown in FIG. 12 , the movement of the shift fork 342 and the module 321 snapping or snapping between two adjacent modules 321 can also be realized by the following structure: the shift fork 342 is slidably connected with the sliding frame 341 and The drive assembly 343 includes a driving cylinder that is arranged on the sliding frame 341 and can drive the shift fork 342 to slide obliquely relative to the sliding frame 341 and engage with the module 321 or between two adjacent modules 321 3435. When it is necessary to adjust the width of the upper die 32, the driving cylinder 3435 drives the shift fork 342 to slide obliquely and engage with the module 321 or between two adjacent modules 321, and then the sliding frame 341 slides laterally. The structure is simple and reliable, and the operation is stable.

As shown in Figures 1 and 10, the feeding mechanism 2 includes a clamping part 21 capable of clamping the workpiece, and the feeding mechanism 2 also includes a clamping part 21 capable of driving the clamping workpiece 100 to move forward. The pushing part 22, the pushing part 22 includes a moving frame 221 that can move back and forth relative to the frame 1, and the clamping part 21 includes an upper clamping platform 211 that is arranged on the moving frame 221 and can lift and rotate, The moving frame 221 is also provided with a lower clamping platform 212 that can rotate relative to it and cooperate with the upper clamping platform 211 to clamp the workpiece 100 . When loading is required, the workpiece 100 is placed on the feeding mechanism 2, the upper clamping table 211 moves downward and cooperates with the lower clamping table 212 to clamp the workpiece 100, and the moving rack 221 moves forward to send the workpiece 100 into the Pressing mechanism 3 position, when the workpiece 100 is bent on one side, the moving frame 221 moves backward, and the upper clamping table 211 and the lower clamping table 212 rotate, thereby rotating the workpiece 100, and then the material moving frame 221 feeds forward again, thus completing The sides of the workpiece 100 are bent or crimped.

Claims (9)

1. a kind of bender, it is characterised in that：Including rack (1), the rack (1) is equipped with feed mechanism (2), described Feed mechanism (2) side is equipped with the hold-down mechanism (3) for being capable of workpiece pressing (100), and the hold-down mechanism (3) side is equipped with energy By the bending mechanism (4) of workpiece (100) bending in it, clamping part of the feed mechanism (2) including being capable of clamping workpiece Part (21), the feed mechanism (2), which further includes, can drive what the hold assembly (21) for being clamped with workpiece (100) travelled forward Pushing mechanism (22), the hold-down mechanism (3) include the lower die station (31) being located in rack (1), the lower die station (31) Top be equipped with upper die (32), the rack (1) be equipped with driving upper die (32) with respect to rack (1) lifting upper die Driving mechanism (33), the bending mechanism (4) is including being located in rack (1) and positioned at the bending part of hold-down mechanism (3) side Part (41), the rack (1) are equipped with driving bending component (41) and move up and down and side-to-side movement with respect to clamp system (3) Driving part (42).

2. bender according to claim 1, it is characterised in that：The upper die driving mechanism (33) is opposite including energy The sliding block (331) that rack (1) slides up and down, the sliding block (331) lower section are equipped with pressure plare (332), the upper die (32) it is connected on pressure plare (332), is equipped between the sliding block (331) and pressure plare (332) and is transported up and down in sliding block (331) The first connecting rod mechanism (333) that pressure plare (332) is driven to move up and down when dynamic, the first connecting rod mechanism (333) include hinge The upper left connecting rod (3331) and upper right connecting rod (3332) being connected on sliding block (331), the upper left connecting rod (3331) and pressure plare (332) left lower link (3333) hinged with the two is equipped between, between the upper right connecting rod (3332) and pressure plare (332) Equipped with the bottom right connecting rod (3334) hinged with the two, the position in the rack (1) and on the outside of sliding block (331) is also hinged There are left outside connecting rod (3335) and right outside connecting rod (3336), also, the left outside connecting rod (3335) is cut with scissors with left lower link (3333) It connects, the right outside connecting rod (3336) is hinged with bottom right connecting rod (3334).

3. bender according to claim 2, it is characterised in that：The left outside connecting rod (3335), upper left connecting rod (3331) and left lower link (3333) three is coaxially hinged；Right outside connecting rod (3336), upper right connecting rod (3332) and the bottom right Connecting rod (3334) three is coaxially hinged.

4. bender according to claim 3, it is characterised in that：When sliding block (331) moves downward, the left outside company Bar (3335) and the angle of upper left connecting rod (3331) gradually increase, also, the right outside connecting rod (3336) and upper right connecting rod (3332) angle gradually increases.

5. bender according to claim 1, it is characterised in that：The bending component (41) is moved including lower on it When can push workpiece (100) and by the bending tool (411) of workpiece (100) bending, the driving part (42) is including being located at machine On frame (1) and toggle that bending component (41) can be driven to move up and down, the toggle includes can phase To the crank (421) of rack (1) rotation, the connecting rod hinged with the two is equipped between the crank (421) and bending tool (411) (422), it is also associated with its block (423) to move up and down, the block setting on (423) relatively in the rack (1) There is inclined sliding rail (424), the bending tool (411) is equipped with the sliding slot being slidably matched with sliding rail (424), in crank (421) when rotation and block (423) move up and down, the sliding rail (424) of the bending tool (411) relative tilt is slided and is realized Bending component (41) is pressed against mechanism (3) up and down and moves left and right.

6. bender according to claim 5, it is characterised in that：The bending tool (411) is included in bending component (41) the first bending sword (411a) of workpiece (100) upward bending is pushed when moving upwards, the bending tool (411) further includes The second bending sword (411b) of workpiece (100) downward bending can be pushed when bending component (41) moves downward.

7. bender according to claim 2, it is characterised in that：The pressure plare (332) is equipped with and can adjust The pressing mold adjustment mechanism (34) of pressing mold (32) width, the upper die (32) simultaneously can relative pressure plates including multiple be arranged in order (332) module (321) slid laterally, the pressing mold adjustment mechanism (34) slide laterally including energy relative pressure plate (332) Sliding rack (341), the sliding rack (341), which is equipped with, can be clamped with module (321) or can snap onto two neighboring module (321) shift fork (342) between, the sliding rack (341) be equipped with can shift fork (342) with module (321) be clamped or Snap onto the drive component (343) between two neighboring module (321).

8. bender according to claim 7, it is characterised in that：The shift fork (342) passes through hinge with sliding rack (341) Spindle (344) is hinged, and the drive component (343) includes the vertical bar hole (3431) that is located on sliding rack (341), described Shift fork (342) be equipped with and tilt bar hole (3432), the vertical bar hole (3431) and to tilt bar hole (3432) interior Being equipped with vertically bar hole (3431) to slide and be pushed in sliding process with tilting the cooperation of bar hole (3432) hole wall Shift fork (342) laterally urges axis (3433) relative to what sliding rack (341) rotated, and the sliding rack (341) is equipped with to push away Dynamic impeller-hub (3433) impeller (3434) that vertically bar hole (3431) slides.

9. bender according to claim 1, it is characterised in that：The pushing mechanism (22) includes the opposite rack of energy (1) the shifting rack (221) moved forward and backward, the hold assembly (21) is including being located on shifting rack (221) and can lift and turning Dynamic upper folder platform (211), is additionally provided on the shifting rack (221) to rotate to it and with upper folder platform (211) coordinate and clamps The lower folder platform (212) of workpiece (100).