Bending die for automobile parts

By designing a bending die that includes components such as a mold, outer shell, connecting column, rotating block, limiting column, and spring, the problem of cumbersome mold replacement was solved, enabling rapid mold replacement and accurate positioning of parts, thereby improving production efficiency and reducing bending error rate.

CN224208951UActive Publication Date: 2026-05-08WUDI KEFENG STAINLESS STEEL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUDI KEFENG STAINLESS STEEL PROD CO LTD
Filing Date
2025-02-20
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing automotive parts bending dies are cumbersome to operate when changing to different sizes, resulting in long downtime and affecting production efficiency.

Method used

A bending die was designed, comprising components such as a mold, outer shell, connecting column, rotating block, limiting column, and spring. The die is quickly changed and the parts are positioned and clamped by hydraulic drive and cam mechanism, simplifying the operation process.

Benefits of technology

It enables quick mold changes and accurate positioning of parts, reduces downtime, improves production efficiency, and lowers the bending error rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile part production, and discloses a bending die for automobile parts, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a bearing frame, the upper surface of the bottom plate is in sliding connection with a first die, the inside of the first die is in sliding connection with a shell, the inside of the shell is in sliding connection with a stop dog, and the stop dog is in sliding connection with the bearing frame. A connecting column is fixedly connected to the interior of the check block, the outer wall of the lower side of the connecting column is slidably connected to the interior of the shell, a rotating block is fixedly connected to the upper surface of the connecting column, a limiting column is fixedly connected to the interior of the lower side of the connecting column, and the outer walls of the connecting column and the limiting column are slidably connected to the inner wall of the bottom plate. According to the bending die, the first die, the shell, the connecting column, the rotating block, the limiting column, the first spring, the check block, the connecting plate and the second die are matched with one another, the bending die is rapidly replaced, the equipment can better adapt to different production requirements, the downtime is shortened, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a bending die for automotive parts. Background Technology

[0002] Automotive parts refer to the various components and parts required in the production and use of automobiles. They are usually an indispensable part of automobile manufacturing, repair and maintenance. The shape and internal structure of automobiles are very complex, and many parts need to be bent to achieve specific shapes. Bending makes the automotive parts reach the final required shape and size, which facilitates subsequent processes. Therefore, a bending die for automotive parts is needed in the production process.

[0003] A bending die for automotive parts is used to process metal sheets into parts of various shapes through bending processes. In the past, bending dies for automotive parts were usually fixed and replaced with bolts. When it was necessary to change dies of different sizes, the operation was cumbersome and the downtime was long. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a bending die for automotive parts, which aims to improve the problem of cumbersome operation and long downtime when bolts need to be changed to different sized dies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending die for automotive parts, comprising a base plate, a load-bearing frame fixedly connected to the upper surface of the base plate, a die first slidably connected to the upper surface of the base plate, a shell slidably connected inside the die first, a stop block slidably connected inside the shell, a connecting column fixedly connected inside the stop block, the lower outer wall of the connecting column slidably connected to the inside of the shell, a rotating block fixedly connected to the upper surface of the connecting column, a limiting column fixedly connected to the lower inner side of the connecting column, the outer walls of the connecting column and the limiting column slidably connected to the inner wall of the base plate, a spring first sleeved on the outer wall of the connecting column, the top end of the spring first fixedly connected to the lower surface of the stop block, the bottom end of the spring first fixedly connected to the inner bottom wall of the shell, and a driving assembly provided inside the load-bearing frame for driving the bending operation.

[0006] Preferably, the driving assembly includes a hydraulic cylinder, the outer wall of which is fixedly connected to the inside of the load-bearing frame, a connecting plate fixedly connected to the output end of the hydraulic cylinder, a mold second slidably connected to the lower surface of the connecting plate, the inside of the connecting plate slidably connected to the outer wall of the outer shell, the outer walls of the connecting column and the limiting column being slidably connected to the inner wall of the mold second, a limiting rod fixedly connected to the upper surface of the connecting plate, a support plate slidably connected to the outer wall of the limiting rod, both ends of the support plate being fixedly connected to the inside of the load-bearing frame, and the outer wall of the limiting rod being slidably connected to the inside of the load-bearing frame.

[0007] Preferably, the base plate is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a cam, and the upper outer wall of the rotating shaft is fixedly connected to a handle.

[0008] Preferably, the outer wall of the cam is slidably connected to a baffle, and the inner top wall of the baffle is slidably connected to the upper surface of the base plate.

[0009] Preferably, a clamping block is slidably connected to the outer wall of the cam, a limit block is slidably connected to the lower surface of the clamping block, and the lower surface of the limit block is fixedly connected to the upper surface of the base plate.

[0010] Preferably, a connecting rod is fixedly connected to the lower inner side of the baffle, and the lower outer wall of the baffle is slidably connected to the inner wall of the base plate.

[0011] Preferably, the right outer wall of the connecting rod is fixedly connected to the lower inner side of the clamping block, the outer wall of the connecting rod is slidably connected to the lower inner side of the clamping block, and the lower outer wall of the clamping block is slidably connected to the inner wall of the base plate.

[0012] Preferably, a second spring is sleeved on the outer wall of the connecting rod, and both ends of the second spring are fixedly connected to the lower outer wall of the clamping block.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the bending die can be quickly changed through the cooperation between the first mold, the outer shell, the connecting column, the rotating block, the limiting column, the first spring, the stop block, the connecting plate, and the second mold, so that the equipment can better adapt to different production needs, reduce downtime, and improve work efficiency.

[0015] 2. In this utility model, by rotating the handle, the clamping block is positioned on the accessory material through the cooperation of the cam, baffle, clamping block, limiting block, connecting rod and spring, preventing material displacement and reducing bending error rate. Attached Figure Description

[0016] Figure 1 This is a perspective view of a bending die for automotive parts proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the outer shell of a bending die for automotive parts proposed in this utility model.

[0018] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the base plate of a bending die for automotive parts proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of the connecting rod of a bending die for automotive parts proposed in this utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Support frame; 3. Mold 1; 4. Outer shell; 5. Connecting column; 6. Rotating block; 7. Limiting column; 8. Spring 1; 9. Stop block; 10. Hydraulic cylinder; 11. Connecting plate; 12. Mold 2; 13. Limiting rod; 14. Support plate; 15. Rotating shaft; 16. Cam; 17. Handle; 18. Baffle; 19. Clamping block; 20. Limiting block; 21. Connecting rod; 22. Spring 2. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a bending die for automotive parts, comprising a base plate 1, a load-bearing frame 2 fixedly connected to the upper surface of the base plate 1, a die 3 slidably connected to the upper surface of the base plate 1, a shell 4 slidably connected inside the die 3, a stop block 9 slidably connected inside the shell 4, a connecting post 5 fixedly connected inside the stop block 9, the lower outer wall of the connecting post 5 slidably connected to the inside of the shell 4, a rotating block 6 fixedly connected to the upper surface of the connecting post 5, a limiting post 7 fixedly connected to the lower inner side of the connecting post 5, the outer walls of both the connecting post 5 and the limiting post 7 slidably connected to the inner wall of the base plate 1, a spring 8 sleeved on the outer wall of the connecting post 5, the top end of the spring 8 fixedly connected to the lower surface of the stop block 9, and the bottom end of the spring 8 fixedly connected to the stop block 9. The inner bottom wall of the outer shell 4 is fixedly connected to the load-bearing frame 2. The drive assembly is provided inside the load-bearing frame 2. The drive assembly includes a hydraulic cylinder 10. The outer wall of the hydraulic cylinder 10 is fixedly connected to the inside of the load-bearing frame 2. The output end of the hydraulic cylinder 10 is fixedly connected to a connecting plate 11. The lower surface of the connecting plate 11 is slidably connected to a mold 12. The inside of the connecting plate 11 is slidably connected to the outer wall of the outer shell 4. The outer walls of the connecting column 5 and the limiting column 7 are both slidably connected to the inner wall of the mold 12. The upper surface of the connecting plate 11 is fixedly connected to a limiting rod 13. The outer wall of the limiting rod 13 is slidably connected to a support plate 14. Both ends of the support plate 14 are fixedly connected to the inside of the load-bearing frame 2. The outer wall of the limiting rod 13 is slidably connected to the inside of the load-bearing frame 2.

[0024] Specifically, the base plate 1 provides fixed support for the load-bearing frame 2, supports the mold 3, the mold 3 supports the outer shell 4, and the outer shell 4 supports and prevents the stop block 9 and connecting column 5 from shifting, allowing the stop block 9 and connecting column 5 to move up and down only inside the outer shell 4. The stop block 9 fixes the connecting column 5, and the connecting column 5 fixes the rotating block 6. When the rotating block 6 is pressed down and rotated, the connecting column 5 will rotate simultaneously, and the rotating block 6 will compress the spring 8. The connecting column 5 fixes the limiting column 7. The rotation of the connecting column 5 will cause the limiting column 7 to rotate simultaneously inside the base plate 1. The base plate 1 has a limiting groove inside, allowing the connecting column 5 and limiting column 7 to slide up and down only in the vertical section. When the limiting column 7 rotates 90 degrees in the horizontal section below the limiting groove inside the base plate 1... The spring 8, when compressed, generates an upward rebound force, causing the limiting post 7 to engage in the limiting groove, thus clamping the base plate 1 and the mold 3 for quick replacement. Simultaneously, the connecting plate 11 has a limiting groove of the same shape as the one inside the base plate 1. The mold 12 and connecting plate 11 also operate in the same way, causing the limiting post 7 to engage in the limiting groove inside the connecting plate 11, achieving clamping and fixing. The load-bearing frame 2 fixes the hydraulic cylinder 10, and the load-bearing frame 2 has a fixing axis for the support plate 14. The load-bearing frame 2 and the support plate 14 prevent the limiting rod 13 from shifting, and the limiting rod 13 fixes the connecting plate 11. When the hydraulic cylinder 10 is activated, it moves the connecting plate 11 downwards, causing the mold 12 to bend.

[0025] Reference Figure 1 and Figure 4 The base plate 1 is rotatably connected to a rotating shaft 15, the outer wall of the rotating shaft 15 is fixedly connected to a cam 16, and the upper outer wall of the rotating shaft 15 is fixedly connected to a handle 17.

[0026] Specifically, the base plate 1 supports the rotating shaft 15, and the rotating shaft 15 fixes the cam 16 and the handle 17. When the handle 17 is turned, the rotating shaft 15 will rotate inside the base plate 1. When the rotating shaft 15 rotates, it will drive the cam 16 to rotate.

[0027] Reference Figure 4 A baffle 18 is slidably connected to the outer wall of the cam 16. The inner top wall of the baffle 18 is slidably connected to the upper surface of the base plate 1. A clamping block 19 is slidably connected to the outer wall of the cam 16. A limit block 20 is slidably connected to the lower surface of the clamping block 19. The lower surface of the limit block 20 is fixedly connected to the upper surface of the base plate 1.

[0028] Specifically, the base plate 1 fixes the limiting block 20, and the limiting block 20 supports and prevents the clamping block 19 from shifting, so that the clamping block 19 can only slide back and forth on the inner wall of the limiting block 20. When the cam 16 rotates, it will squeeze the baffle 18 and the right clamping block 19. The baffle 18 is inverted "concave" shaped. When the baffle 18 is squeezed, the inner top wall of the baffle 18 will move on the upper surface of the base plate 1. When the clamping block 19 is squeezed, it will move on the inner wall of the limiting block 20.

[0029] Reference Figure 1 and Figure 4 A connecting rod 21 is fixedly connected to the lower inner side of the baffle 18. The lower outer wall of the baffle 18 is slidably connected to the inner wall of the base plate 1. The right outer wall of the connecting rod 21 is fixedly connected to the lower inner side of the clamping block 19. The outer wall of the connecting rod 21 is slidably connected to the lower inner side of the clamping block 19. The lower outer wall of the clamping block 19 is slidably connected to the inner wall of the base plate 1. A second spring 22 is sleeved on the outer wall of the connecting rod 21. Both ends of the second spring 22 are fixedly connected to the lower outer wall of the clamping block 19.

[0030] Specifically, the baffle 18 fixes the connecting rod 21, the base plate 1 supports the baffle 18 and prevents it from shifting, and the base plate 1 has a groove inside. When the baffle 18 is compressed, it will move within the groove inside the base plate 1. The left clamping block 19 fixes the connecting rod 21, and the right clamping block 19 supports the connecting rod 21. The lower outer wall of the clamping block 19 fixes the second spring 22, and the connecting rod 21 supports the second spring 22. When the baffle 18 moves... The connecting rod 21 will move, and the connecting rod 21 will move the left clamping block 19 inward on the inner wall of the limiting block 20, and will squeeze the second spring 22. When the right clamping block 19 moves inward on the inner wall of the limiting block 20, it will also squeeze the second spring 22. When the clamping block 19 moves inward, it will clamp and position the accessory to prevent the accessory from shifting. When the handle 17 is released, the rebound force of the second spring 22 will cause the baffle 18 and the clamping block 19 to return to their original positions.

[0031] Working principle: When using this device, select the desired mold, then place mold 3 on the upper surface of base plate 1, and then place the outer shell 4 inside mold 3. Simultaneously, the connecting post 5 and the limiting post 7 are also placed inside base plate 1. Then, rotate the rotating block 6 ninety degrees. The rotating block 6 will drive the connecting post 5 to rotate and cause the limiting post 7 to rotate inside base plate 1, thus locking the limiting post 7 into the internal slot of base plate 1, clamping mold 3 to base plate 1. Next, attach mold 2 12 to connecting plate 11, and similarly place the outer shell 4 inside mold 2 12. By rotating the limiting post 7 and locking it inside connecting plate 11, the effect of clamping mold 2 12 to connecting plate 11 is achieved. After the mold replacement is complete... Place the part to be bent on mold 3, then turn handle 17. Handle 17 will drive shaft 15 to rotate cam 16. The rotation of cam 16 will squeeze baffle 18 and right clamping block 19. The right clamping block 19 will move inward under the pressure, and baffle 18 will move outward under the pressure. Through connecting rod 21, it will drive left clamping block 19 to move inward. In this way, the inward movement of clamping block 19 will clamp the part and put it in the correct position. This device can not only adapt to various bending requirements by quickly changing the mold, but also is simple to operate and improves work efficiency. At the same time, it can also clamp and position the part to keep it in the correct position, prevent the part from shifting, and reduce bending errors.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bending die for automotive parts, comprising a base plate (1), characterized in that: A load-bearing frame (2) is fixedly connected to the upper surface of the base plate (1). A mold (3) is slidably connected to the upper surface of the base plate (1). A shell (4) is slidably connected inside the mold (3). A stop (9) is slidably connected inside the shell (4). A connecting column (5) is fixedly connected inside the stop (9). The lower outer wall of the connecting column (5) is slidably connected to the inside of the shell (4). A rotating block (6) is fixedly connected to the upper surface of the connecting column (5). A limiting post (7) is fixedly connected to the lower side of the connecting post (5). The outer walls of the connecting post (5) and the limiting post (7) are slidably connected to the inner wall of the base plate (1). A spring (8) is sleeved on the outer wall of the connecting post (5). The top end of the spring (8) is fixedly connected to the lower surface of the stop block (9). The bottom end of the spring (8) is fixedly connected to the inner bottom wall of the outer shell (4). A driving assembly is provided inside the load-bearing frame (2). The driving assembly is used to drive the bending operation.

2. The bending die for automotive parts according to claim 1, characterized in that: The drive assembly includes a hydraulic cylinder (10), the outer wall of which is fixedly connected to the inside of the load-bearing frame (2), the output end of which is fixedly connected to a connecting plate (11), the lower surface of which is slidably connected to a mold (12), the inside of which is slidably connected to the outer wall of the outer shell (4), the outer walls of the connecting column (5) and the limiting column (7) are both slidably connected to the inner wall of the mold (12), the upper surface of which is fixedly connected to a limiting rod (13), the outer wall of which is slidably connected to a support plate (14), both ends of which are fixedly connected to the inside of the load-bearing frame (2), and the outer wall of which is slidably connected to the inside of the load-bearing frame (2).

3. A bending die for automotive parts according to claim 1, characterized in that: The base plate (1) is rotatably connected to a rotating shaft (15), the outer wall of the rotating shaft (15) is fixedly connected to a cam (16), and the upper outer wall of the rotating shaft (15) is fixedly connected to a handle (17).

4. A bending die for automotive parts according to claim 3, characterized in that: The outer wall of the cam (16) is slidably connected to a baffle (18), and the inner top wall of the baffle (18) is slidably connected to the upper surface of the base plate (1).

5. A bending die for automotive parts according to claim 4, characterized in that: The outer wall of the cam (16) is slidably connected to a clamping block (19), and the lower surface of the clamping block (19) is slidably connected to a limiting block (20). The lower surface of the limiting block (20) is fixedly connected to the upper surface of the base plate (1).

6. A bending die for automotive parts according to claim 4, characterized in that: A connecting rod (21) is fixedly connected to the lower inner side of the baffle (18), and the lower outer wall of the baffle (18) is slidably connected to the inner wall of the base plate (1).

7. A bending die for automotive parts according to claim 6, characterized in that: The right outer wall of the connecting rod (21) is fixedly connected to the lower inner side of the clamping block (19), the outer wall of the connecting rod (21) is slidably connected to the lower inner side of the clamping block (19), and the lower outer wall of the clamping block (19) is slidably connected to the inner wall of the base plate (1).

8. A bending die for automotive parts according to claim 6, characterized in that: The outer wall of the connecting rod (21) is fitted with a spring (22), and both ends of the spring (22) are fixedly connected to the lower outer wall of the clamping block (19).