Multipurpose sheet metal part bending die

Abstract

The utility model relates to the technical field of bending dies, in particular to a multipurpose sheet metal part bending die which comprises a base, two sets of supporting legs, a workbench and a switching device, the supporting legs are fixedly connected with the surface of the base, the supporting legs are symmetrically arranged, the workbench is fixedly connected with the surfaces of the supporting legs, and the switching device is arranged on the workbench. The switching device is arranged on the surface of the workbench and comprises a U-shaped plate, the U-shaped plate is fixedly connected with the surface of the workbench, the inner wall of the U-shaped plate is rotationally connected with a center column, the surface of the center column is fixedly connected with a fixing disc, the surface of the fixing disc is fixedly connected with two sets of air cylinders, and the driving ends of the air cylinders are fixedly connected with a first mold disc. The surface of the fixing disc is fixedly connected with a telescopic sleeve. According to the bending machine, by arranging the switching device, four sets of bending dies in different shapes can be installed and can be rotated and switched at any time, the situation that different bending dies are frequently disassembled and replaced according to different requirements is avoided, and the applicability of the bending machine is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to a multi-purpose sheet metal bending die. Background Art

[0002] Sheet metal parts are a metal processing technology, mainly for comprehensive cold processing of metal sheets. During the production of sheet metal parts, a bending machine is usually required for bending processing. The bending die of the bending machine is a tool used by the bending machine to form and process sheet materials. Different dies are composed of different parts. The existing bending dies are generally installed on the threaded holes of the fixing plate through bolts. When the bending die needs to be replaced, the disassembly and assembly are inconvenient, which reduces the work efficiency. Moreover, after repeated die replacement, the thread connection between the bolt and the threaded hole is likely to slip, resulting in unstable installation of the bending die and affecting the bending quality.

[0003] The prior art such as the Chinese patent with the publication number CN221231347U discloses a sheet metal bending die convenient for replacement, including a base. Four corners of the top of the base are fixedly provided with first support rods, and the tops of the four first support rods are fixedly provided with the same placement plate. A square through groove is formed through the top of the placement plate. Two fixing ears are fixedly provided on both sides of the square through groove on the top of the base. A square module is rotatably installed between the outer walls of the two fixing ears through a pin shaft. Grooves are provided on the peripheral surfaces of the square module. A first limiting component for fixing the square module is provided at the top of the base. An L-shaped mounting plate is fixedly provided on one side of the top of the placement plate, and a hydraulic cylinder is provided on the outer wall of the L-shaped mounting plate. The utility model can bend sheet metal parts into various shapes, and it is more convenient and fast to replace the convex blocks and grooves, saving the trouble and inconvenience of traditional bolt fixation, thereby improving the work efficiency and reducing the labor intensity. However, the operation of this utility model is too cumbersome. When replacing the bending die, it is necessary to first loosen the first limiting component, then loosen the second limiting component, then rotate the square module, and finally rotate the cross die rod, so that the replacement operation is not simplified too much, and the improvement of work efficiency is not obvious. In order to solve the problem of insufficient applicability of the sheet metal bending die, avoid the situation of frequently replacing different bending dies when facing sheet metal parts with different bending requirements, and reduce unnecessary time and labor costs, so it is necessary to improve this. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a multi-purpose sheet metal bending die to solve the shortcoming of insufficient applicability in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solution: a multi-purpose sheet metal bending die, including a base, support legs, a workbench and a switching device. The support legs are fixedly connected to the surface of the base. The number of the support legs is two groups and they are symmetrically arranged. The workbench is fixedly connected to the surface of the support legs. The switching device is arranged on the surface of the workbench. The switching device includes a U-shaped plate which is fixedly connected to the surface of the workbench. A central column is rotatably connected to the inner wall of the U-shaped plate. A fixed disk is fixedly connected to the surface of the central column. Two cylinders are fixedly connected to the surface of the fixed disk. The driving end of each cylinder is fixedly connected to a first die disk. A telescopic sleeve is fixedly connected to the surface of the fixed disk. The telescopic sleeve is sleeved on the surface of the central column. The other end of the telescopic sleeve is fixedly connected to the surface of the first die disk.

[0006] Further, a first mounting plate is fixedly installed on the surface of the first die disk. The number of the first mounting plates is four groups and they are circumferentially distributed. A connecting block is fixedly connected to the surface of the first mounting plate. A convex block is fixedly connected to the surface of the connecting block.

[0007] Further, a second die disk is fixedly connected to the surface of the central column. A second mounting plate is fixedly installed on the surface of the second die disk. The number of the second mounting plates is four groups and they are circumferentially distributed. A square block is fixedly connected to the surface of the second mounting plate. A groove is formed on the surface of the square block.

[0008] Further, the shapes of the four convex blocks and the grooves are different from each other. The four convex blocks and the grooves are pairwise matched with each other. A through groove is formed on the surface of the workbench. The number of the through grooves is four groups and they are circumferentially distributed. The through grooves are matched with the square blocks.

[0009] Further, a fixed cylinder is fixedly connected to the surface of the base. A first spring is fixedly connected to the inside of the fixed cylinder. The other end of the first spring is fixedly connected to a movable disk which is slidably connected to the inner surface of the fixed cylinder. A limiting disk is fixedly connected to the end of the fixed cylinder away from the base.

[0010] Further, one end of the central column penetrates through the workbench and is fixedly connected to an anti-disengagement disk. The central column is slidably connected to the surface of the limiting disk. The anti-disengagement disk is slidably connected to the inner surface of the fixed cylinder. A rotary valve is fixedly connected to the other end of the central column.

[0011] Furthermore, a square box is fixedly connected to the surface of the U-shaped plate. A second spring is fixedly connected inside the square box. The other end of the second spring is fixedly connected to a slider. A chute is formed on the surface of the square box. The slider is slidably connected to the surface of the chute. A clamping post is fixedly connected to the surface of the slider. The clamping post is slidably connected to the inner wall of the square box. A first clamping groove and a second clamping groove are formed on the surface of the central column. The number of the first clamping groove and the second clamping groove is four groups each and they are distributed in a circular pattern. The clamping post matches the first clamping groove and the second clamping groove.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by setting a switching device, in the initial state, the clamping post is stuck inside the first clamping groove. First, it is necessary to push the slider in the direction away from the central column. While the slider compresses the second spring, the clamping post slides out of the first clamping groove. Subsequently, push the central column downward. The anti-slip disk on the central column presses the movable disk and the first spring, and the square block slides downward out of the through groove. At the same time, the second clamping groove comes down to a position horizontal with the clamping post. Release the slider, and the clamping post is snapped into the second clamping groove under the rebound of the second spring. At this time, the square block slides out of the through groove and the device is fixed. The convex blocks on the first die plate and the square blocks on the second die plate can be replaced as needed. After the replacement is completed, push the slider again to make the clamping post slide out of the second clamping groove. Rotate the rotary valve to make the central column rotate, driving the fixed disk and the second die plate to rotate accordingly. The first die plate is driven by the fixed disk to rotate synchronously. Rotate the convex blocks and corresponding grooves that need to be used next to the outside of the U-shaped plate. After reaching the position, pull the central column upward. With the assistance of the rebound of the first spring, the first clamping groove comes to a position horizontal with the clamping post, and the square block slides into the through groove. Subsequently, release the slider to make the clamping post snap into the first clamping groove again. At this time, the device can perform operations. Push the first die plate through the cylinder. While the telescopic sleeve extends, the first die plate moves downward. The sheet metal part is bent by the convex blocks and grooves of different shapes. Moreover, the workbench is separated into left and right two working areas by the U-shaped plate, and two different dies can be used for bending operations simultaneously. By setting the switching device, four groups of bending dies with different shapes can be installed and rotated and switched at any time, avoiding the situation of frequently disassembling and replacing different bending dies in the face of different requirements. Therefore, the applicability of the device is effectively improved. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of a multi-purpose sheet metal part bending die proposed by the present utility model;

[0015] Figure 2 is a partial structural schematic diagram of the switching device in a multi-purpose sheet metal part bending die proposed by the present utility model;

[0016] Figure 3This is a partial structural schematic diagram of a switching device in a multi-purpose sheet metal bending die proposed by the present utility model;

[0017] Figure 4 This is a partial structural schematic diagram of a switching device in a multi-purpose sheet metal bending die proposed by the present utility model;

[0018] Figure 5 This is a proposal of the present utility model for a multi-purpose sheet metal bending die Figure 4 Schematic diagram of location A.

[0019] Legend:

[0020] 1. Base; 2. Support leg; 3. Workbench; 4. Switching device; 401. U-shaped plate; 402. Central column; 403. Fixed disk; 404. Cylinder; 405. Die disk one; 406. Telescopic sleeve; 407. Mounting plate one; 408. Connecting block; 409. Convex block; 410. Die disk two; 411. Mounting plate two; 412. Square block; 413. Groove; 414. Through groove; 415. Fixed cylinder; 416. Spring one; 417. Movable disk; 418. Limiting disk; 419. Anti-disengagement disk; 420. Rotary valve; 421. Square box; 422. Spring two; 423. Slide block; 424. Slide groove; 425. Clamping post; 426. First card slot; 427. Second card slot. Specific implementation mode

[0021] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a multi-purpose sheet metal bending die, including a base 1, support legs 2, a workbench 3 and a switching device 4. The support legs 2 are fixedly connected to the surface of the base 1. The number of support legs 2 is two groups and they are symmetrically arranged. The workbench 3 is fixedly connected to the surface of the support legs 2. The switching device 4 is arranged on the surface of the workbench 3.

[0022] Next, specifically describe the specific settings and functions of its switching device 4.

[0023] In this implementation: The switching device 4 includes a U-shaped plate 401. The U-shaped plate 401 is fixedly connected to the surface of the workbench 3. The inner wall of the U-shaped plate 401 is rotatably connected to a central column 402. The surface of the central column 402 is fixedly connected to a fixed disk 403. The surface of the fixed disk 403 is fixedly connected to cylinders 404. The number of cylinders 404 is two groups. The driving ends of the cylinders 404 are fixedly connected to a die disk one 405. The surface of the fixed disk 403 is fixedly connected to a telescopic sleeve 406. The telescopic sleeve 406 is sleeved on the surface of the central column 402. The other end of the telescopic sleeve 406 is fixedly connected to the surface of the die disk one 405.

[0024] The effects achieved by the above components are as follows: When the device is operating, the mold plate 405 is pushed by the cylinder 404. While the telescopic sleeve 406 extends, the mold plate 405 moves downward.

[0025] Specifically, a first mounting plate 407 is fixedly installed on the surface of the mold plate 405. The number of the first mounting plates 407 is four and they are distributed in a circular pattern. A connecting block 408 is fixedly connected to the surface of the first mounting plate 407, and a convex block 409 is fixedly connected to the surface of the connecting block 408.

[0026] The effects achieved by the above components are as follows: The mold plate 405 moves downward, causing the convex block 409 to bend the sheet metal part downward. The mounting plate is provided to facilitate the disassembly and replacement of different convex blocks 409.

[0027] Specifically, a second mold plate 410 is fixedly connected to the surface of the central column 402. A second mounting plate 411 is fixedly installed on the surface of the second mold plate 410. The number of the second mounting plates 411 is four and they are distributed in a circular pattern. A square block 412 is fixedly connected to the surface of the second mounting plate 411, and a groove 413 is formed on the surface of the square block 412.

[0028] The effects achieved by the above components are as follows: The second mounting plate 411 is provided to facilitate the disassembly and replacement of different square blocks 412. When the central column 402 rotates, it drives the fixed disk 403 and the second mold plate 410 to rotate accordingly. The first mold plate 405 will also be driven by the fixed disk 403 to rotate synchronously, enabling synchronous switching between different convex blocks 409 and the corresponding grooves 413.

[0029] Specifically, the shapes of the four convex blocks 409 and the grooves 413 are different. The four convex blocks 409 and the grooves 413 are pairwise matched. Through grooves 414 are formed on the surface of the workbench 3. The number of the through grooves 414 is four and they are distributed in a circular pattern. The through grooves 414 are matched with the square blocks 412.

[0030] The effects achieved by the above components are as follows: The groove 413 on the square block 412 cooperates with the corresponding convex block 409 to bend the sheet metal part. The four pairwise-matched convex blocks 409 and grooves 413 are provided to facilitate switching and avoid frequent disassembly of the bending mold. In the working state, the square block 412 is located inside the through groove 414 and cooperates with the convex block 409 for operation. At the same time, it can also play a role in restricting the displacement of the second mold plate 410. When rotation is required, the central column 402 needs to be pushed downward first to make the square block 412 disengage from the through groove 414 before rotation can be carried out.

[0031] Specifically, a fixed cylinder 415 is fixedly connected to the surface of the base 1. A first spring 416 is fixedly connected inside the fixed cylinder 415. The other end of the first spring 416 is fixedly connected to a movable disk 417. The movable disk 417 is slidably connected to the inner surface of the fixed cylinder 415. A limit disk 418 is fixedly connected to the end of the fixed cylinder 415 away from the base 1.

[0032] The effects achieved by the above components are as follows: The first spring 416 is provided to assist the up and down movement of the central column 402, and the limit disk 418 is provided to limit the distance of the up and down movement of the central column 402.

[0033] Specifically, one end of the central column 402 penetrates through the workbench 3 and is fixedly connected to an anti - detachment disk 419. The central column 402 is slidably connected to the surface of the limit disk 418. The anti - detachment disk 419 is slidably connected to the inner surface of the fixed cylinder 415. The other end of the central column 402 is fixedly connected to a rotary valve 420.

[0034] The effects achieved by the above components are as follows: The anti - detachment disk 419 is provided to prevent the central column 402 from detaching from the fixed cylinder 415, and the rotary valve 420 is provided to facilitate the rotation of the central column 402.

[0035] Specifically, a square box 421 is fixedly connected to the surface of the U - shaped plate 401. A second spring 422 is fixedly connected inside the square box 421. The other end of the second spring 422 is fixedly connected to a slider 423. A chute 424 is provided on the surface of the square box 421. The slider 423 is slidably connected to the surface of the chute 424. A clamping post 425 is fixedly connected to the surface of the slider 423. The clamping post 425 is slidably connected to the inner wall of the square box 421. A first card slot 426 and a second card slot 427 are provided on the surface of the central column 402. The number of the first card slot 426 and the second card slot 427 is four groups each and they are distributed in a circular pattern. The clamping post 425 is matched with the first card slot 426 and the second card slot 427.

[0036] The effects achieved by the above components are as follows: In the initial state, the clamping post 425 is stuck inside the first card slot 426. When it is necessary to switch different bending dies, first push the slider 423 in the direction away from the central column 402. While the slider 423 compresses the second spring 422, the clamping post 425 slides out of the first card slot 426. Then first push the central column 402 downward and then rotate it. After the switching is completed, pull the central column 402 upward. With the assistance of the rebound of the first spring 416, the first card slot 426 comes to the horizontal position with the clamping post 425 again. Then release the slider 423 so that the clamping post 425 is stuck into the first card slot 426 again. When it is necessary to disassemble and replace the bending die, repeat the above operation. Push the central column 402 downward so that the second card slot 427 comes to the horizontal position with the clamping post 425. Release the slider 423 so that the clamping post 425 is stuck into the second card slot 427. At this time, the square block 412 slides out of the through - slot 414 and the device is fixed, and disassembly and replacement can be carried out.

[0037] Working principle: By setting the switching device 4, in the initial state, the clamping post 425 is stuck inside the first clamping groove 426. First, it is necessary to push the slider 423 in the direction away from the central column 402. While the slider 423 compresses the second spring 422, the clamping post 425 slides out of the first clamping groove 426. Subsequently, the central column 402 is pushed downward. The anti-detachment disc 419 on the central column 402 squeezes the movable disc 417 and the first spring 416, and the square block 412 slides downward out of the through groove 414. At the same time, the second clamping groove 427 comes downward to a position horizontal with the clamping post 425. The slider 423 is released, and the second spring 422 rebounds to make the clamping post 425 snap into the second clamping groove 427. At this time, the square block 412 slides out of the through groove 414 and the device is fixed. The convex block 409 on the first mold plate 405 and the square block 412 on the second mold plate 410 can be replaced as needed. After the replacement is completed, the slider 423 is pushed again to make the clamping post 425 slide out of the second clamping groove 427. The rotary valve 420 is rotated to make the central column 402 rotate, driving the fixed disc 403 and the second mold plate 410 to rotate accordingly. The first mold plate 405 is driven by the fixed disc 403 to rotate synchronously, and the convex block 409 and the corresponding groove 413 to be used next are rotated outside the U-shaped plate 401. After reaching the position, the central column 402 is pulled upward. With the assistance of the rebound of the first spring 416, the first clamping groove 426 comes to a position horizontal with the clamping post 425, and the square block 412 slides into the through groove 414. Subsequently, the slider 423 is released to make the clamping post 425 snap into the first clamping groove 426 again. At this time, the device can perform operations. The first mold plate 405 is pushed by the cylinder 404. While the telescopic sleeve 406 extends, the first mold plate 405 moves downward. The sheet metal part is bent by the convex blocks 409 and grooves 413 of different shapes. Moreover, the workbench 3 is divided into left and right two working areas by the U-shaped plate 401, and two different molds can be used for bending operations simultaneously. By setting the switching device 4, four groups of bending molds with different shapes can be installed and rotated and switched at any time, avoiding the situation of frequently disassembling and replacing different bending molds in the face of different requirements, and effectively improving the applicability of the device.

Claims

1. A multi-purpose sheet metal bending die, comprising a base (1), support legs (2), a workbench (3) and a switching device (4), characterized in that: The supporting legs (2) are fixedly connected to the surface of the base (1). The number of the supporting legs (2) is two groups and they are symmetrically arranged. The workbench (3) is fixedly connected to the surface of the supporting legs (2). The switching device (4) is arranged on the surface of the workbench (3). The switching device (4) includes a U-shaped plate (401). The U-shaped plate (401) is fixedly connected to the surface of the workbench (3). A central column (402) is rotatably connected to the inner wall of the U-shaped plate (401). A fixed disk (403) is fixedly connected to the surface of the central column (402). Two cylinders (404) are fixedly connected to the surface of the fixed disk (403). The driving end of each cylinder (404) is fixedly connected to a first mold disk (405). A telescopic sleeve (406) is fixedly connected to the surface of the fixed disk (403). The telescopic sleeve (406) is sleeved on the surface of the central column (402). The other end of the telescopic sleeve (406) is fixedly connected to the surface of the first mold disk (405).

2. The multi-purpose sheet metal bending die according to claim 1, wherein: A first mounting plate (407) is fixedly installed on the surface of the first mold disk (405). The number of the first mounting plates (407) is four groups and they are circumferentially distributed. A connecting block (408) is fixedly connected to the surface of the first mounting plate (407). A convex block (409) is fixedly connected to the surface of the connecting block (408).

3. The multi-purpose sheet metal bending die according to claim 1, characterized in that: A second mold disk (410) is fixedly connected to the surface of the central column (402). A second mounting plate (411) is fixedly installed on the surface of the second mold disk (410). The number of the second mounting plates (411) is four groups and they are circumferentially distributed. A square block (412) is fixedly connected to the surface of the second mounting plate (411). A groove (413) is formed on the surface of the square block (412).

4. A multi-purpose sheet metal bending die according to claim 2, characterized in that: The shapes of the four convex blocks (409) and the grooves (413) are different from each other. The four convex blocks (409) and the grooves (413) are pairwise matched with each other. Four through grooves (414) are formed on the surface of the workbench (3) and they are circumferentially distributed. The through grooves (414) are matched with the square blocks (412).

5. A multi-purpose sheet metal bending die according to claim 1, characterized in that: A fixed cylinder (415) is fixedly connected to the surface of the base (1). A first spring (416) is fixedly connected to the inside of the fixed cylinder (415). The other end of the first spring (416) is fixedly connected to a movable disk (417). The movable disk (417) is slidably connected to the inner surface of the fixed cylinder (415). A limiting disk (418) is fixedly connected to the end of the fixed cylinder (415) away from the base (1).

6. The multi-purpose sheet metal bending die according to claim 1, wherein: One end of the central column (402) penetrates through the workbench (3) and is fixedly connected to an anti-disengagement disk (419). The central column (402) is slidably connected to the surface of the limiting disk (418). The anti-disengagement disk (419) is slidably connected to the inner surface of the fixed cylinder (415). The other end of the central column (402) is fixedly connected to a rotary valve (420).

7. The multifunctional sheet metal bending die according to claim 1, characterized in that: The surface of the U-shaped plate (401) is fixedly connected with a square box (421). A second spring (422) is fixedly connected inside the square box (421). The other end of the second spring (422) is fixedly connected with a slider (423). A sliding groove (424) is formed on the surface of the square box (421). The slider (423) is slidably connected to the surface of the sliding groove (424). A clamping column (425) is fixedly connected to the surface of the slider (423). The clamping column (425) is slidably connected to the inner wall of the square box (421). A first clamping groove (426) and a second clamping groove (427) are formed on the surface of the central column (402). The number of the first clamping grooves (426) and the second clamping grooves (427) is four groups each and they are distributed in a circumferential manner. The clamping column (425) is matched with the first clamping groove (426) and the second clamping groove (427).

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