A bending device for producing an electric control box shell
The quick-release chuck structure design solves the problem of time-consuming and labor-intensive tool change in bending machines, enabling rapid installation and sliding adjustment of the upper tool, thus improving replacement efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN ZHENGJIA PRECISION MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
The existing bending machine cutter head replacement process is time-consuming and labor-intensive. The traditional bolt fixing method cannot be installed from any position on the cutter holder, and batch replacement is time-consuming and labor-intensive.
It adopts a quick-clamp structure, which consists of a rear plate, a front plate, a cover plate, an adjusting wheel, and an operating handle. The operating handle drives the adjusting wheel to rotate, adjusting the movement distance of the clamping block in the straight groove, thereby realizing the quick fixing and sliding adjustment of the upper cutter head.
It improves the efficiency of tool head replacement, enabling quick installation of the upper tool head in any position and sliding adjustment between multiple tool holders, thus enhancing replacement efficiency.
Smart Images
Figure CN224406121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending equipment technology, and in particular to a bending device for producing the outer shell of an electrical control box. Background Technology
[0002] A bending machine is a specialized piece of equipment for processing metal sheets. It can bend steel plates, aluminum plates, etc. into shape using a mold. It mainly relies on hydraulic or mechanical transmission to drive the slider, which drives the upper mold to press down, so that the sheet metal is bent along the V-groove of the lower mold to form workpieces at different angles.
[0003] When replacing existing bending machine cutter heads, it is necessary to loosen the cutter head fixing bolts and slide the cutter head to the outermost edge of the cutter holder using the groove on its front side. The same process is required when installing the cutter head. Furthermore, some bending machines still use the traditional bolt fixing method to fix the cutter heads. Therefore, when replacing existing cutter heads using the quick-clamp mechanism, it is not possible to install them from any position on the cutter holder. When replacing in batches, repeatedly sliding and aligning the grooves is time-consuming. The traditional bolt fixing method makes the replacement of cutter heads even more time-consuming and laborious. Utility Model Content
[0004] The purpose of this utility model is to provide a bending device for the production of electrical control box shells, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A bending device for producing an electrical control box housing includes a bending machine body. A main control box is fixedly connected to one side of the bending machine body. A foot control pedal is provided on the front side of the bending machine body. Multiple lower die holders are fixedly connected to the front side of the bending machine body. Multiple upper tool holders are fixedly connected to the output end of the hydraulic mechanism inside the bending machine body. A quick-release chuck is fixedly connected to the bottom of the upper tool holder. An upper cutter head is fixedly connected to the bottom of the quick-release chuck. A slot is provided on the front side of the upper cutter head. The quick-release chuck also includes a rear plate. A front plate is fixedly connected to the front side of the rear plate. The front plate located above the rear plate is fixedly connected to the upper tool holder. A cover plate is fixedly connected to the front side of the rear plate located below the front plate. A straight groove is provided on the rear side of the cover plate. A circular groove is provided at the center of the front side of the cover plate. A locking block is movably connected in the straight groove. An adjusting wheel is rotatably connected in the circular groove. An operating handle is movably connected to the front side of the adjusting wheel.
[0007] As a further preferred embodiment of this utility model, a reinforcing block is fixedly connected to the cover plate located above the straight groove. The rear side of the reinforcing block abuts against the front side of the front plate. The reinforcing block allows the installation space for the upper cutter head to be retained after the fixed beam between the rear plate and the cover plate is connected.
[0008] As a further preferred embodiment of this utility model, a limiting groove is provided on the front side of the front plate, and multiple limiting grooves are also provided on the front side of the cover plate. The limiting grooves can limit the rotation of the operating handle, thereby controlling the rotation angle of the adjusting wheel through the operating handle.
[0009] As a further preferred embodiment of this utility model, an abutment groove is provided at the middle position of the front side of the locking block, and a first countersunk hole is provided in the locking block located on both sides of the abutment groove. A first connecting bolt is inserted into the first countersunk hole. A first compression spring is also fitted on the first connecting bolt located between one side of the first countersunk hole and one end of the first connecting bolt. The front side of the locking block is inserted into the straight groove, and the other end of the first connecting bolt is threaded into the inside of the straight groove. After the locking block is limited by the two first connecting bolts and inserted into the straight groove, the locking block can move horizontally in the straight groove, thereby enabling the upper cutter head to be quickly fixed in the quick clamp by cooperating with the front locking groove.
[0010] As a further preferred embodiment of this utility model, the rear side of the adjusting wheel has a sloping structure, and a fixed shaft is fixedly connected to the center position of the adjusting wheel. A limit cover is inserted through the fixed shaft located at the front side of the adjusting wheel, and the limit cover is also fixedly connected to the front side of the cover plate by bolts. The adjusting wheel has a sloping surface on one side relative to the locking block, so that the contact angle between the sloping surface and the front contact groove of the locking block can be changed by rotating the adjusting wheel, thereby controlling the movement distance of the locking block in the straight groove, realizing the sliding adjustment and final fixation of the upper cutter head between the rear plate and the cover plate.
[0011] As a further preferred embodiment of this utility model, a connecting shaft is fixedly connected to the rear side of the operating handle. The longitudinal cross-section of the connecting shaft is polygonal. A second countersunk hole is opened in the operating handle and the connecting shaft. A second connecting bolt is inserted into the second countersunk hole. A second compression spring is also fitted onto the second connecting bolt located in the second countersunk hole. The connecting shaft is inserted into a polygonal groove on the front side of the fixed shaft, and one end of the second connecting bolt is threaded into the polygonal groove on the front side of the fixed shaft. The operating handle is inserted into the front side of the fixed shaft through the connecting shaft and the second connecting bolt. This allows the operating handle to drive the adjusting wheel to rotate and adjust the movement distance of the locking block. At the same time, the operating handle, with the help of the force of the second compression spring, can cause the end away from the connecting shaft to be locked into the corresponding limiting groove, thereby limiting the angle of the operating handle and thus limiting the rotation angle of the adjusting wheel through the operating handle.
[0012] Compared with the prior art, the present invention has the following advantages: In the present invention, a quick-release chuck is provided at the bottom of the upper tool holder. The quick-release chuck is composed of a rear plate, a front plate, a cover plate, a circular groove, an adjusting wheel, an operating handle, and other structures. The adjusting wheel can be driven to rotate at different angles by the operating handle, and the adjusting wheel is provided with a slope on the side of the clamping block. By rotating the adjusting wheel, the contact angle between the slope and the clamping block is adjusted, thereby controlling the movement distance of the clamping block in the straight groove. This allows the upper tool head to be inserted and fixed from any bottom of the upper tool holder. At the same time, the sliding displacement adjustment of the upper tool head between multiple upper tool holders can also be realized, improving the replacement efficiency of the upper tool head. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is a cross-sectional view of the quick-release chuck of this utility model;
[0015] Figure 3 This is a schematic diagram of the quick-release chuck disassembly structure of this utility model;
[0016] Figure 4 This is a rear view of the cover plate of this utility model;
[0017] Figure 5 This is a partial cross-sectional view of the card block of this utility model.
[0018] In the diagram: 1. Bending machine body; 2. Main control box; 3. Foot pedal; 4. Lower die holder; 5. Upper cutter holder; 6. Quick-release chuck; 7. Upper cutter head; 8. Slot; 9. Rear plate; 10. Front plate; 11. Cover plate; 12. Straight groove; 13. Circular groove; 14. Locking block; 15. Adjusting wheel; 16. Operating handle; 17. Reinforcing block; 18. First countersunk hole; 19. First connecting bolt; 20. First compression spring; 21. Abutment groove; 22. Fixed shaft; 23. Limiting cover; 24. Connecting shaft; 25. Second countersunk hole; 26. Second connecting bolt; 27. Second compression spring; 28. Limiting groove. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] like Figures 1-5As shown, this utility model provides a bending device for producing an electrical control box shell, including a bending machine body 1. A main control box 2 is fixedly connected to one side of the bending machine body 1. A foot control pedal 3 is provided on the front side of the bending machine body 1. Multiple lower die holders 4 are fixedly connected to the front position inside the bending machine body 1. Multiple upper tool holders 5 are fixedly connected to the output end of the hydraulic mechanism inside the bending machine body 1. A quick-release chuck 6 is fixedly connected to the bottom of the upper tool holder 5. An upper cutter head 7 is fixedly connected to the bottom of the quick-release chuck 6. A slot 8 is provided on the front side of the upper cutter head 7. The quick-release chuck 6 also includes a rear plate 9. A front plate 10 is fixedly connected to the front side of the rear plate 9. The front plate 10, located above the rear plate 9, is fixedly connected to the upper tool holder 5. A cover plate 11 is also fixedly connected to the front side of the rear plate 9, located below the front plate 10. A straight groove 12 is provided on the rear side of the cover plate 11, and a circular groove 13 is provided at the center of the front side of the cover plate 11. A locking block 14 is movably connected in the straight groove 12, and an adjusting wheel 15 is rotatably connected in the circular groove 13. An operating handle 16 is movably connected to the front side of the adjusting wheel 15.
[0021] like Figure 2 , Figure 4 As shown, a reinforcing block 17 is fixedly connected to the cover plate 11 located above the straight groove 12. The rear side of the reinforcing block 17 abuts against the front side of the front plate 10. The reinforcing block 17 allows the installation space of the upper cutter head 7 to be retained after the fixed beam connection between the rear plate 9 and the cover plate 11.
[0022] like Figures 2-3 As shown, a limiting groove 28 is provided on the front side of the front plate 10, and multiple limiting grooves 28 are also provided on the front side of the cover plate 11. The limiting grooves 28 can limit the rotation of the operating handle 16, thereby controlling the rotation angle of the adjusting wheel 15 through the operating handle 16.
[0023] like Figures 2-5As shown, a contact groove 21 is provided at the center of the front side of the locking block 14. First countersunk holes 18 are provided on both sides of the locking block 14 located at the contact groove 21. First connecting bolts 19 are inserted into the first countersunk holes 18. A first compression spring 20 is also fitted onto one end of the first connecting bolt 19 located within one side of the first countersunk hole 18. The front side of the locking block 14 is inserted into a straight groove 12, and the other end of the first connecting bolt 19 is threaded into the inside of the straight groove 12. The locking block 14 is limited and inserted into the straight groove 12 by the two first connecting bolts 19. After entering the groove 12, the locking block 14 can move horizontally within the straight groove 12, thereby enabling the upper cutter head 7 to be quickly fixed in the quick-release chuck 6 in conjunction with the front locking groove 8. The rear side of the adjusting wheel 15 has a sloping structure, and a fixed shaft 22 is fixedly connected to the center of the adjusting wheel 15. The fixed shaft 22 located at the front of the adjusting wheel 15 passes through a limit cover 23, and the limit cover 23 is also fixedly connected to the front of the cover plate 11 by bolts. The adjusting wheel 15 has a slope on one side relative to the locking block 14, so that by rotating the adjusting wheel 15, the position of the slope and the front abutment groove 21 of the locking block 14 can be changed. The angle of contact is adjusted to control the movement distance of the locking block 14 within the straight groove 12, thereby achieving the sliding adjustment and final fixation of the upper cutter head 7 between the rear plate 9 and the cover plate 11. A connecting shaft 24 is fixedly connected to the rear side of the operating handle 16. The longitudinal cross-section of the connecting shaft 24 is polygonal. A second countersunk hole 25 is opened in the operating handle 16 and the connecting shaft 24. A second connecting bolt 26 is inserted into the second countersunk hole 25. A second compression spring 27 is also fitted onto the second connecting bolt 26 located in the second countersunk hole 25. The connecting shaft 24 is inserted into the polygonal cross-section on the front side of the fixed shaft 22. The second connecting bolt 26 is threaded into the polygonal groove on the front side of the fixed shaft 22. The operating handle 16 is connected to the front side of the fixed shaft 22 via the connecting shaft 24 and the second connecting bolt 26. The operating handle 16 can drive the adjusting wheel 15 to rotate and adjust the movement distance of the locking block 14. At the same time, the operating handle 16 can be engaged in the corresponding limiting groove 28 by means of the force of the second compression spring 27, thereby limiting the angle of the operating handle 16 and thus limiting the rotation angle of the adjusting wheel 15.
[0024] It should be noted that this utility model is a bending device for the production of an electrical control box shell. When installing the upper cutter head 7, first align it with the gap between the rear plate 9 and the cover plate 11 of the quick-clamp 6, and insert the top of the upper cutter head 7 between the rear plate 9 and the cover plate 11. Then, hold the operating handle 16 with one hand and pull the operating handle 16 towards the operator. As a result, the connecting shaft 24 at one end of the operating handle 16 moves forward in the polygonal groove on the front side of the fixed shaft 22. Simultaneously, the other end of the operating handle 16 disengages from the corresponding limiting groove 28. At this time, the operating handle 16 can be rotated, and the connecting shaft 24 connected to it will rotate with the fixed shaft 22. The adjusting wheel 15 on the fixed shaft 22 moves accordingly. The rear side of the adjusting wheel 15 is a slope. When rotating, the slope will hit the abutment groove 21 of the locking block 14, pushing the locking block 14 forward and compressing the first compression spring 20. When the operating handle 16 rotates 180 degrees, the greater the slope angle on the rear side of the adjusting wheel 15, the more... The more prominent the structure, the more the slope angle of the rear side of the adjusting wheel 15 is maximized, pushing the rear side of the locking block 14 completely into the locking groove 8 and pressing it into the locking groove 8, thus completing the limiting and fixing of the upper cutter head 7. Then, the operating handle 16 is released, and the operating handle 16 is pushed back to its original position by the extension and rebound force of the second compression spring 27, so that one end of the operating handle 16 is re-locked into the corresponding limiting groove 28. Thus, the axial movement of the adjusting wheel 15 is limited by limiting the operating handle 16. When it is necessary to slide and adjust the installation position of the upper cutter head 7 between multiple sets of rear plates 9 and cover plates 11, the operating handle 16 can be pulled out and rotated 90 degrees in the same way as above, so that the locking block 14 retracts half its length into the straight groove 12, limiting the upper cutter head 7 only between the rear plate 9 and cover plates 11 without applying pressure to it. Thus, the upper cutter head 7 can slide and adjust its installation position between the rear plate 9 and cover plates 11 through the locking groove 8 and the locking block 14.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bending device for producing the outer shell of an electrical control box, characterized in that: The machine includes a bending machine body (1), a main control box (2) fixedly connected to one side of the bending machine body (1), a foot control pedal (3) provided on the front side of the bending machine body (1), multiple lower die holders (4) fixedly connected to the front position inside the bending machine body (1), multiple upper tool holders (5) fixedly connected to the output end of the hydraulic mechanism inside the bending machine body (1), a quick-release chuck (6) fixedly connected to the bottom of the upper tool holder (5), an upper cutter head (7) fixedly connected to the bottom of the quick-release chuck (6), a slot (8) opened on the front position of the upper cutter head (7), and a rear plate (9) also included in the quick-release chuck (6). A front plate (10) is fixedly connected to the front side of the rear plate (9). The front plate (10) located above the rear plate (9) is fixedly connected to the upper tool holder (5). A cover plate (11) is also fixedly connected to the front side of the rear plate (9) located below the front plate (10). A straight groove (12) is provided on the rear side of the cover plate (11). A circular groove (13) is provided at the center of the front side of the cover plate (11). A locking block (14) is movably connected in the straight groove (12). An adjusting wheel (15) is rotatably connected in the circular groove (13). An operating handle (16) is movably connected to the front side of the adjusting wheel (15).
2. The bending device for producing electric control box shell according to claim 1, characterized in that: A reinforcing block (17) is fixedly connected to the cover plate (11) located above the straight groove (12), and the rear side of the reinforcing block (17) abuts against the front side of the front plate (10).
3. The bending device for producing electric control box shell according to claim 1, characterized in that: The front plate (10) has a limiting groove (28) on its front side, and the cover plate (11) also has multiple limiting grooves (28) on its front side.
4. The bending device for producing an electrical control box shell according to claim 3, characterized in that: The card block (14) has an abutment groove (21) at the middle position on the front side. The card blocks (14) located on both sides of the abutment groove (21) have first countersunk holes (18). A first connecting bolt (19) is inserted into the first countersunk hole (18).
5. A bending device for producing an electrical control box housing according to claim 4, characterized in that: The first connecting bolt (19), located between one side of the first countersunk hole (18) and one end of the first connecting bolt (19), is also fitted with a first compression spring (20). The front side of the locking block (14) is inserted into the straight groove (12), and the other end of the first connecting bolt (19) is threaded into the inside of the straight groove (12).
6. A bending device for producing an electrical control box housing according to claim 4, characterized in that: The rear side of the adjusting wheel (15) has a sloping structure. A fixed shaft (22) is fixedly connected to the center of the adjusting wheel (15). The fixed shaft (22) located at the front side of the adjusting wheel (15) is inserted through a limit cover (23), and the limit cover (23) is also fixedly connected to the front side of the cover plate (11) by bolts.
7. A bending device for producing an electrical control box housing according to claim 6, characterized in that: The operating handle (16) is fixedly connected to a connecting shaft (24) on the rear side. The longitudinal section of the connecting shaft (24) is polygonal. A second countersunk hole (25) is opened in the operating handle (16) and the connecting shaft (24). A second connecting bolt (26) is inserted into the second countersunk hole (25).
8. A bending device for producing an electrical control box housing according to claim 7, characterized in that: The second connecting bolt (26) located in the second countersunk hole (25) is also fitted with a second compression spring (27). The connecting shaft (24) is inserted into the polygonal groove on the front side of the fixed shaft (22), and one end of the second connecting bolt (26) is threaded into the polygonal groove on the front side of the fixed shaft (22).