Stamping die with flanging structure

By introducing a bidirectional lead screw and worm gear reducer motor driven limit plate and folding plate structure into the stamping die, the problem that the existing die cannot quickly adapt to the processing of parts of different sizes is solved, and the limit plate and folding plate can be quickly replaced and the folding can be stably folded, thereby improving processing efficiency and adaptability.

CN223932356UActive Publication Date: 2026-02-24KUNSHAN JUP PRECISION PARTS CO LTD
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Patent Information

Application Number
CN202520499000.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-24
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing stamping dies cannot quickly adapt to workpieces of different sizes, resulting in poor limiting effect and inconvenient replacement of pressure blocks, which reduces the adaptability and processing efficiency of the equipment.

Method used

The limiting plate and folding plate structure is driven by a two-way lead screw and worm gear reducer motor, combined with magnetic attraction and spring fixation, to achieve quick replacement and adjustment of the limiting plate and folding plate, and the upper mold is driven by a hydraulic rod to stably fold the edge.

Benefits of technology

It improves the adaptability and reliability of stamping dies, enables stable bending and quick replacement of workpieces of different sizes, and improves processing efficiency.

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Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with an edge folding structure. The stamping die with the edge folding structure comprises an upper die, a first sliding groove is formed in the top of the upper die in a penetrating mode, a supporting sleeve is arranged in the first sliding groove, a second two-way lead screw is arranged in the supporting sleeve, the second two-way lead screw is rotationally arranged in the first sliding groove, and the second two-way lead screw is rotationally arranged in the second sliding groove. The outer side wall of the second bidirectional screw rod is uniformly screwed with two groups of second internal thread sliding blocks, and pointers are arranged at the tops of the second internal thread sliding blocks. According to the utility model, the positions of the limiting plate and the edge folding plate can be respectively changed through the first worm and gear speed reducing motor and the second worm and gear speed reducing motor, the limiting plate can be directly pulled down and replaced when facing lower dies with different sizes, and meanwhile, the limiting plate can be directly pulled down and replaced when facing work with different edge folding requirements. And the flanged plate can be taken down and replaced only by screwing down the bolt, so that the adaptability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a stamping die with a folded edge structure. Background Technology

[0002] In the prior art, stamping devices rely on presses and dies to apply external force to sheet metal, strip, tube and profile, etc., to cause plastic deformation or separation, thereby obtaining stamped parts of the required shape and size. Folding structure usually refers to the side bending and corner treatment of the processed parts. During processing, the processed parts need to be fixed on the processing platform, and the pressure plate driven by the cylinder is pressed and folded at the point.

[0003] Chinese Patent No. CN219233648U discloses a folding structure for a stamping die for stamping parts, including a processing table, a gantry frame, a hydraulic cylinder, a pressure plate, pressure blocks, and a fixing block. The gantry frame is fixedly installed on the top of the processing table. Pressure blocks are respectively arranged on both sides of the inner wall of the pressure plate. A drive motor is fixedly installed at the inner corner of one side of the pressure plate. A lead screw is fixedly connected to the telescopic end of the drive motor. Adjustment blocks are integrally formed on both sides of the top of the two sets of pressure blocks. This utility model can drive the lead screw to rotate through the drive motor, so that the two sets of adjustment blocks on the same side slide to adjust the distance under the cooperation of opposite internal thread holes, while the pressure block on the other side slides outside the slide rod in the adjustment groove. This realizes that the distance between the two sets of pressure blocks can be flexibly adjusted, which is convenient for pressing and folding parts of different sizes. It avoids the low processing efficiency and inconvenience of the existing folding structure, which requires manually adjusting the position of the bolts to adjust the distance between the two sets of pressure blocks.

[0004] The existing technical solutions mentioned above have the following drawbacks: since the limiting plate is directly fixed to the processing table, it cannot limit the processing parts of different sizes. Furthermore, since the adjusting block is fixed to the pressure block, the device cannot quickly replace the pressure block that matches the size of the processing part, thus reducing the adaptability of the device. In view of the above, technical innovation is carried out on the basis of the existing stamping die with the folding structure. Utility Model Content

[0005] The purpose of this invention is to provide a stamping die with a folded edge structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stamping die with a folded edge structure, comprising:

[0007] The upper mold has a first sliding groove extending through its top. A support sleeve is installed within the first sliding groove, and a second bidirectional lead screw is installed within the support sleeve. The second bidirectional lead screw is rotatably mounted within the first sliding groove. Two sets of second internal threaded sliders are evenly screwed onto the outer wall of the second bidirectional lead screw. A pointer is installed on the top of each of the second internal threaded sliders. The top of the upper mold has evenly distributed scale lines, and the pointer corresponds to the scale lines. A second connecting block is installed at the bottom of each of the second internal threaded sliders. A folded edge plate is placed on the outer side of the second connecting block. A first slot is opened on the top of the folded edge plate, and the second connecting block is inserted into the first slot. A first through hole is opened through the outer side of the folded edge plate, and a threaded hole is opened on the outer side of the second connecting block. A bolt is installed in the first through hole. The bolts are screwed into the threaded holes. A first bidirectional lead screw is placed below the upper mold. Two sets of first internal threaded sliders are evenly screwed onto the outer wall of the first bidirectional lead screw. A first connecting block is provided on the top of the first internal threaded slider. A limiting plate is placed on the outer side of the first connecting block. A second slot is opened at the bottom of the limiting plate. The first connecting block is inserted into the second slot. A set of mounting holes is opened on both the front and rear sides of the first connecting block. A spring is installed in the mounting hole. A round-headed pin is provided on the outer side of the spring. A set of positioning holes is opened on both the front and rear sides of the inner side wall of the first slot. The round head of the round-headed pin is inserted into the positioning hole. A magnetic block is embedded in the top of the first connecting block. An iron block is embedded in the top of the inner side wall of the second slot. The magnetic block and the iron block are magnetically attracted to each other.

[0008] Preferably, a worktable is placed on the outside of the first bidirectional lead screw, and a second slide groove is provided on the top of the worktable. The first bidirectional lead screw is rotatably disposed in the second slide groove, and two sets of limiting plates are evenly disposed on the top of the worktable.

[0009] Preferably, a second worm gear reducer motor is provided on the front side of the upper mold, and the output end of the second worm gear reducer motor passes through the front side of the upper mold and is connected to the front side of the second bidirectional lead screw. A first worm gear reducer motor is provided on the right side of the worktable, and the output end of the first worm gear reducer motor passes through the right side of the worktable and is connected to the right side of the first bidirectional lead screw.

[0010] Preferably, a gantry frame is provided on the top of the workbench, and a set of guide grooves are provided on both the left and right sides of the inner sidewall of the gantry frame. A set of guide blocks are provided on both the left and right sides of the upper mold, and the guide blocks are disposed in the guide grooves.

[0011] Preferably, the top of the gantry frame is provided with a hydraulic rod, the telescopic end of the hydraulic rod passes through the top of the gantry frame and connects to the top of the support sleeve, the top of the gantry frame is evenly provided with two sets of second through holes, and a spring telescopic rod is slidably arranged in the second through holes, the top of the upper mold is evenly provided with two sets of third through holes, the two sets of spring telescopic rods are evenly arranged on the top of the upper mold, and the telescopic end of the spring telescopic rod passes through the third through hole and is connected to an anti-slip pad.

[0012] Preferably, a lower mold is placed on the top of the workbench, the lower mold is located between two sets of limiting plates, a workpiece plate is placed on the top of the lower mold, the front and rear sides of the top of the workpiece plate correspond to the two sets of folding plates, and the anti-slip pad is located above the workpiece plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, when the upper mold is driven by the hydraulic rod to fold the workpiece plate, the upper mold will drive the guide block and the spring telescopic rod to move synchronously. At this time, the cooperation between the spring telescopic rod and the guide block can assist the upper mold to move downward stably. When the spring telescopic rod moves downward, the workpiece plate can be pressed and stabilized by the anti-slip pad, so that the workpiece plate can be folded stably, thereby improving the reliability of the device.

[0015] The positions of the limiting plate and the folding plate can be changed by the first worm gear reducer motor and the second worm gear reducer motor respectively. When facing lower molds of different sizes, the limiting plate can be directly removed and replaced. At the same time, when facing different folding requirements, the folding plate can be removed and replaced simply by unscrewing the bolts, thereby improving the adaptability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a stamping die with a folded edge according to the present invention;

[0017] Figure 2 This is a front sectional view of a stamping die with a folded edge structure according to the present invention.

[0018] Figure 3 This is a right-side sectional view of a stamping die with a folded edge structure according to the present invention.

[0019] Figure 4 This is a partial sectional view of the right side of a stamping die with a folded edge structure according to the present invention.

[0020] In the diagram: 1. Workbench; 11. Gantry frame; 12. Lower mold; 13. Workpiece plate; 14. First worm gear reducer motor; 141. First double-acting lead screw; 142. First internal thread slider; 143. First connecting block; 15. Limiting plate; 151. Iron block; 152. Magnetic block; 153. Round head pin; 154. Spring; 16. Upper mold; 161. Guide block; 162. Support sleeve; 17. Hydraulic rod; 18. Spring telescopic rod; 181. Anti-slip pad; 19. Folding plate; 2. Second worm gear reducer motor; 21. Second double-acting lead screw; 22. Second internal thread slider; 23. Pointer; 24. Scale line; 25. Bolt; 26. Second connecting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4A stamping die with a folded edge structure includes an upper die 16. A first groove is formed through the top of the upper die 16. A support sleeve 162 is fixedly installed within the first groove. A second bidirectional lead screw 21 is rotatably installed within the support sleeve 162. The second bidirectional lead screw 21 is rotatably installed within the first groove. Two sets of second internal threaded sliders 22 are evenly screwed onto the outer wall of the second bidirectional lead screw 21. A pointer 23 is fixedly installed on the top of each second internal threaded slider 22. Scale lines 24 are evenly distributed on the top of the upper die 16, and the pointer 23 corresponds to the scale lines 24. A second connecting block 26 is fixedly installed at the bottom of each second internal threaded slider 22. A folded edge plate 19 is placed on the outer side of the second connecting block 26. A first slot is formed on the top of the folded edge plate 19, into which the second connecting block 26 is inserted. Within the first slot, a first through hole is formed on the outer side of the folded edge plate 19, and a threaded hole is formed on the outer side of the second connecting block 26. A bolt 25 is rotatably installed in the first through hole, and the bolt 25 is screwed into the threaded hole. By screwing the bolt 25 through the first through hole and into the threaded hole, the second connecting block 26 is fixed in the first slot of the folded edge plate 19, thereby fixing the folded edge plate 19 to the bottom of the second internal threaded slider 22. When the second bidirectional lead screw 21 rotates, it can drive the two sets of second internal threaded sliders 22 to move inward synchronously. The second internal threaded sliders 22 drive the pointer 23 and the folded edge plate 19 to move. The interaction between the pointer 23 and the scale line 24 helps the user to clearly observe the movement position of the folded edge plate 19. After unscrewing the bolt 25, the folded edge plate 19 can be... The folding plate 19 is removed from the bottom of the second internal thread slider 22 and replaced. A first bidirectional lead screw 141 is placed below the upper mold 16. Two sets of first internal thread sliders 142 are evenly screwed onto the outer wall of the first bidirectional lead screw 141. A first connecting block 143 is fixedly installed on the top of the first internal thread slider 142. A limiting plate 15 is placed on the outer side of the first connecting block 143. A second slot is opened at the bottom of the limiting plate 15. The first connecting block 143 is inserted into the second slot. A set of mounting holes is opened on both the front and rear sides of the first connecting block 143. A spring 154 is fixedly installed in the mounting holes. A round-headed pin 153 is fixedly installed on the outer side of the spring 154. A set of positioning holes is opened on both the front and rear sides of the inner side wall of the first slot. The round head of the round-headed pin 153 is inserted into the slot. Inside the positioning hole, a magnetic block 152 is embedded in the top of the first connecting block 143, and an iron block 151 is embedded in the top of the inner side wall of the second slot. The magnetic block 152 and the iron block 151 are magnetically attracted to each other. After the first connecting block 143 is inserted into the second slot of the limiting plate 15, the spring 154 drives the round-headed pin 153 to be inserted into the positioning hole through its elastic force. At the same time, the magnetic attraction of the iron block 151 and the magnetic block 152 is used to fix the limiting plate 15 stably on the outside of the first connecting block 143, thereby fixing the limiting plate 15 on the top of the first internal thread slider 142. When the first bidirectional screw 141 rotates, it can drive the two sets of first internal thread sliders 142 to move inward synchronously. The first internal thread slider 142 drives the limiting plate 15 to move synchronously through the first connecting block 143.

[0023] A worktable 1 is placed on the outer side of the first bidirectional lead screw 141. A second slide groove is opened on the top of the worktable 1. The first bidirectional lead screw 141 is rotatably disposed in the second slide groove. Two sets of limiting plates 15 are evenly slidably disposed on the top of the worktable 1. A second worm gear reducer motor 2 is fixedly disposed on the front side of the upper mold 16. The output end of the second worm gear reducer motor 2 passes through the front side of the upper mold 16 and is connected to the front side of the second bidirectional lead screw 21. A first worm gear reducer motor 14 is fixedly disposed on the right side of the worktable 1. The output end of the device passes through the right side of the workbench 1 and connects to the right side of the first bidirectional lead screw 141. The first bidirectional lead screw 141 is rotated via the first worm gear reducer motor 14, and the second bidirectional lead screw 21 is rotated via the second worm gear reducer motor 2. A gantry frame 11 is fixedly installed on the top of the workbench 1. A set of guide grooves is opened on both the left and right sides of the inner sidewall of the gantry frame 11. A set of guide blocks 161 is fixedly installed on both the left and right sides of the upper mold 16. The guide blocks 161 are slidably disposed within the guide grooves. A hydraulic system is fixedly installed on the top of the gantry frame 11. The hydraulic rod 17 has its telescopic end penetrating through the top of the gantry frame 11 and connecting to the top of the support sleeve 162. Two sets of second through holes are evenly distributed through the top of the gantry frame 11, with spring telescopic rods 18 slidably installed within each through hole. Two sets of third through holes are evenly distributed through the top of the upper mold 16, with the two sets of spring telescopic rods 18 evenly fixed to the top of the upper mold 16. The telescopic ends of the spring telescopic rods 18 penetrate the third through holes and are connected to anti-slip pads 181. When the hydraulic rod 17 moves the upper mold 16 downwards, the upper mold 16 will... The guide block 161 and the spring telescopic rod 18 slide. At this time, the guide block 161 slides in the guide groove, while the spring telescopic rod 18 slides in the second through hole. The cooperation between the spring telescopic rod 18 and the guide block 161 can help the upper mold 16 move downward stably. The lower mold 12 is placed on the top of the worktable 1. The lower mold 12 is located between two sets of limiting plates 15. The workpiece plate 13 is placed on the top of the lower mold 12. The front and rear sides of the top of the workpiece plate 13 correspond to the two sets of folding plates 19. The anti-slip pad 181 is located above the workpiece plate 13.

[0024] Working principle: The lower mold 12 is placed centered on the top of the worktable 1. After the first connecting block 143 is inserted into the second slot of the limiting plate 15, the spring 154 drives the round-headed pin 153 to insert into the positioning hole through its elastic force. At the same time, the magnetic attraction of the iron block 151 and the magnetic block 152 is used to stably fix the limiting plate 15 on the outside of the first connecting block 143, thereby fixing the limiting plate 15 on the top of the first internal thread slider 142. The first worm gear reducer motor 14 drives the first bidirectional lead screw 141 to rotate. When the first bidirectional lead screw 141 rotates, it can drive the two sets of first internal thread sliders 142 to move inward synchronously. The first internal thread sliders 142 drive the limiting plates 15 to move synchronously through the first connecting block 143. The lower mold 12 is clamped and fixed by the inward movement of the two sets of limiting plates 15. Since the limiting plates 15 are fixed to the top of the first internal thread sliders 142 by magnetic force and elastic force, the limiting plates 15 can be directly removed and replaced when facing lower molds 12 of different sizes, thereby improving the adaptability of the device.

[0025] The workpiece plate 13 is placed centered on the top of the lower mold 12. Bolts 25 are threaded through the first through hole and into the threaded hole, thus fixing the second connecting block 26 into the first slot of the folding plate 19. This fixes the folding plate 19 to the bottom of the second internal thread slider 22. Based on the dimensions of the workpiece plate 13, the second worm gear reducer motor 2 drives the second bidirectional lead screw 21 to rotate. When the second bidirectional lead screw 21 rotates, it drives the two sets of second internal thread sliders 22 to move inward synchronously. The second internal thread sliders 22 drive the pointer 23 and the folding plate 19 to move. The interaction between the pointer 23 and the scale line 24 helps the user clearly observe the movement position of the folding plate 19. When the two sets of folding plates 19 move to the position where the workpiece plate 13 needs to be folded, the hydraulic rod 17 drives the upper mold 16 to move downward. At this time, the upper mold 16 drives the spring telescopic rod 18 and the folding plate 19 to move downward, while the spring telescopic rod 18 extends and retracts. The anti-slip pad 181 at the bottom of the end will first contact the workpiece plate 13, thereby pressing the workpiece plate 13 firmly against the top of the lower mold 12, thus ensuring that the workpiece plate 13 can be stably folded. When the upper mold 16 continues to move downward, the spring telescopic rod 18 will retract, thereby allowing the two sets of folding plates 19 to move downward and contact the workpiece plate 13, and fold the workpiece plate 13. When the hydraulic rod 17 drives the upper mold 16 to move downward, the upper mold 16 will drive the guide block 161 and the spring telescopic rod 18 to slide. At this time, the guide block 161 slides in the guide groove, while the spring telescopic rod 18 slides in the second through hole. The cooperation between the spring telescopic rod 18 and the guide block 161 can assist the upper mold 16 to move downward stably. Since the folding plate 19 is fixed to the outside of the second connecting block 26 by bolts 25, when facing different folding requirements, the folding plate 19 can be removed and replaced simply by unscrewing the bolts 25.

Claims

1. A stamping die with a folded edge structure, characterized in that, include: The upper mold (16) has a first sliding groove through its top. A support sleeve (162) is provided in the first sliding groove. A second bidirectional lead screw (21) is provided in the support sleeve (162). The second bidirectional lead screw (21) is rotatably disposed in the first sliding groove. Two sets of second internal thread sliders (22) are evenly screwed onto the outer wall of the second bidirectional lead screw (21). A pointer (23) is provided on the top of the second internal thread slider (22). Scale lines (24) are evenly provided on the top of the upper mold (16). The pointer (23) corresponds to the scale line (24). A second connecting block (26) is provided at the bottom of the second internal thread slider (22). A folded edge plate (19) is placed on the outside of the second connecting block (26). A first slot is provided at the top of the folded edge plate (19). The second connecting block (26) is inserted into the first slot. A first through hole is provided on the outside of the folded edge plate (19). A threaded hole is provided on the outside of the second connecting block (26). A bolt (25) is provided in the first through hole. 25) Screwed to the threaded hole, a first bidirectional lead screw (141) is placed below the upper mold (16), two sets of first internal thread sliders (142) are evenly screwed to the outer wall of the first bidirectional lead screw (141), a first connecting block (143) is provided on the top of the first internal thread slider (142), a limiting plate (15) is placed on the outer side of the first connecting block (143), a second slot is opened at the bottom of the limiting plate (15), the first connecting block (143) is inserted into the second slot, the first connecting block (143) has a set of mounting holes on both the front and rear sides. A spring (154) is installed in the mounting holes. A round-headed pin (153) is installed on the outside of the spring (154). A set of positioning holes is installed on both the front and rear sides of the inner wall of the first slot. The round head of the round-headed pin (153) is inserted into the positioning hole. A magnet (152) is embedded in the top of the first connecting block (143). An iron block (151) is embedded in the top of the inner wall of the second slot. The magnet (152) and the iron block (151) are magnetically attracted to each other.

2. A stamping die with a folded edge structure according to claim 1, characterized in that: A worktable (1) is placed on the outside of the first bidirectional lead screw (141). A second slide groove is provided on the top of the worktable (1). The first bidirectional lead screw (141) is rotatably disposed in the second slide groove. Two sets of limiting plates (15) are evenly disposed on the top of the worktable (1).

3. A stamping die with a folded edge structure according to claim 2, characterized in that: A second worm gear reducer motor (2) is provided on the front side of the upper mold (16). The output end of the second worm gear reducer motor (2) passes through the front side of the upper mold (16) and is connected to the front side of the second bidirectional lead screw (21). A first worm gear reducer motor (14) is provided on the right side of the worktable (1). The output end of the first worm gear reducer motor (14) passes through the right side of the worktable (1) and is connected to the right side of the first bidirectional lead screw (141).

4. A stamping die with a folded edge structure according to claim 2, characterized in that: The top of the workbench (1) is provided with a gantry frame (11), and a set of guide grooves are provided on both the left and right sides of the inner sidewall of the gantry frame (11). A set of guide blocks (161) are provided on both the left and right sides of the upper mold (16), and the guide blocks (161) are located in the guide grooves.

5. A stamping die with a folded edge structure according to claim 4, characterized in that: The top of the gantry frame (11) is provided with a hydraulic rod (17). The telescopic end of the hydraulic rod (17) passes through the top of the gantry frame (11) and is connected to the top of the support sleeve (162). The top of the gantry frame (11) is evenly provided with two sets of second through holes. A spring telescopic rod (18) is slidably provided in the second through hole. The top of the upper mold (16) is evenly provided with two sets of third through holes. The two sets of spring telescopic rods (18) are evenly provided on the top of the upper mold (16). The telescopic end of the spring telescopic rod (18) passes through the third through hole and is connected to an anti-slip pad (181).

6. A stamping die with a folded edge structure according to claim 5, characterized in that: The workbench (1) has a lower mold (12) placed on top. The lower mold (12) is located between two sets of limiting plates (15). The workpiece plate (13) is placed on top of the lower mold (12). The front and rear sides of the top of the workpiece plate (13) correspond to two sets of folding plates (19). The anti-slip pad (181) is located above the workpiece plate (13).

Citation Information

Patent Citations

  • Edge folding structure of stamping die for stamping part

    CN219233648U