Copper bar punch forming die
By using a combination of positioning blocks and elastic elements in the copper rod stamping die, the problems of deviation and jamming during copper rod/tube stamping were solved, achieving a high-precision and high-efficiency processing procedure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN ELECTRICAL ALLOY
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional copper rod/tube stamping processes are prone to deviation and jamming, resulting in poor precision and low efficiency, and making it difficult to stably connect other electrical components.
The upper and lower positioning blocks, along with elastic elements and guide limiting structures, are used to clamp the middle of the workpiece to prevent it from deviating. After stamping, the elastic elements allow the workpiece to detach from the mold, avoiding jamming.
It improves the stamping accuracy and production efficiency of copper rods/tubes, ensures stable connection of workpieces, avoids jamming, and enhances processing stability.
Smart Images
Figure CN224238072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a copper rod stamping die. Background Technology
[0002] Copper rods / tubes are core components used for electrical connections in ring main units or other circuit control equipment. Compared to rectangular copper busbars, copper rods / tubes offer greater current carrying capacity while creating a uniform electric field. Depending on the connection path, copper rods / tubes require bending, and their ends need to be flattened and punched to facilitate connection to other electrical components.
[0003] In traditional production processes, the ends of the bent copper rods / tubes need to be stamped separately. After stamping one end, manual handling is required before stamping the other end. This process is inefficient and may result in poor parallelism stability of the stamped ends, which is not conducive to the stable connection of the copper rods / tubes with other components.
[0004] Existing technologies include bending and punching dies for copper busbars. For example, Chinese patent application CN117718398A discloses a conductive copper busbar stamping die. This stamping die includes an upper die and a lower die that cooperate with each other. A guide post is provided between the upper die and the lower die. Multiple sets of cutting structures, punching structures, and bending structures are symmetrically provided on both sides of the upper die. Correspondingly, a clearance hole is provided on the lower die. A feeding channel is provided between the upper die and the lower die for the sheet material to pass through. The bending structure is located in the discharge direction of the cutting structure and the punching structure. The bending structure consists of bending blocks of different shapes, which are fixed to the upper die and the lower die respectively. After the sheet material is punched, the workpiece can be bent in the longitudinal direction. It can meet the stamping processing requirements of workpieces that need to be bent horizontally, and multiple workpieces can be stamped simultaneously.
[0005] The aforementioned stamping dies are suitable for stamping copper busbars. The one-piece stamping method can solve the problem of poor flatness stability. However, when processing copper rods / tubes, since copper rods / tubes are usually cylindrical and different workpieces may have poor bending accuracy, the stamping surface may contact one end of the copper rod / tube first during stamping. This can cause workpiece misalignment, affecting stamping accuracy and even leading to workpiece scrap, thus reducing stamping efficiency. Furthermore, after stamping, the workpiece may become stuck in the die due to stamping deformation, making it difficult to remove, which also affects copper rod production efficiency.
[0006] Therefore, a copper rod stamping die is needed that can prevent the copper rod / tube from deviating during the stamping operation and avoid workpiece jamming. Utility Model Content
[0007] This utility model provides a copper rod stamping die, which can prevent the copper rod / tube from deviating during the stamping operation and avoid the phenomenon of workpiece jamming.
[0008] To solve the above problems, the present invention provides a copper rod stamping die with the following technical solution:
[0009] A copper rod stamping die includes an upper body, a lower body, a guide assembly, a positioning assembly, and a stamping assembly. The positioning assembly includes an upper positioning block, a lower positioning block, and an elastic support structure. The upper and lower positioning blocks are used to clamp the workpiece. The stamping surfaces of the upper and lower positioning blocks each have a positioning structure for limiting the position of the workpiece.
[0010] The elastic support structure includes an elastic element and a guide limiting structure. The elastic element is located between the upper positioning block / lower positioning block and the upper seat / lower seat, and is used to push the upper positioning block and the lower positioning block closer to each other. The guide limiting structure is used to restrict the upper positioning block / lower positioning block from moving up and down and to limit the travel of the upper positioning block / lower limiting block.
[0011] This utility model discloses a copper rod stamping die. By setting positioning structures, elastic elements, and guide limiting structures on the upper and lower positioning blocks, the middle part of the workpiece can be clamped between the upper and lower positioning blocks before stamping, which prevents the workpiece from deviating during stamping and improves the stamping accuracy. In addition, after stamping, the lower positioning block will move upward under the push of the elastic element, and the upper positioning block will move downward under the push of the elastic element. At this time, the workpiece can be separated from the lower and upper forming blocks, thereby preventing the workpiece from getting stuck on the die and improving the production efficiency of copper rods.
[0012] Furthermore, the guide limiting structure includes a limiting screw and a limiting hole. The limiting hole is a stepped hole located in the upper and lower seats. The limiting screw extends in the vertical direction. The threaded end of the limiting screw is screwed to the upper / lower positioning block. One end of its head slides through the limiting hole, and the maximum stroke of the limiting screw is limited by the stepped structure.
[0013] Furthermore, the elastic element is a spring, which is fixedly installed on the upper / lower seat.
[0014] Furthermore, the positioning structure is a positioning groove, the shape of which matches the shape of the workpiece. The two positioning grooves are used to clamp the workpiece to prevent it from shifting during the stamping process.
[0015] Furthermore, the upper body includes an upper mold base and an upper clamping plate adjacent to the lower side of the upper mold base, and the lower body includes a lower mold base and a lower clamping plate adjacent to the upper side of the lower mold base. The upper mold base and the upper clamping plate are fixedly connected, and the lower mold base and the lower clamping plate are fixedly connected. Both the upper mold base and the lower mold base have bottom holes, and both the upper clamping plate and the lower clamping plate have guide holes. The diameter of the bottom hole is smaller than the diameter of the guide hole. The bottom hole and the guide hole together form the limiting hole.
[0016] Furthermore, the stamping assembly includes an upper forming block fixed on the upper clamping plate and a lower forming block fixed on the lower clamping plate. The upper forming block includes an upper left forming block and an upper right forming block that are respectively adjacent to the left and right sides of the upper positioning block. The lower forming block includes a lower left forming block and a lower right forming block that are respectively adjacent to the left and right sides of the lower positioning block. The upper left forming block and the upper right forming block have mutually cooperating stamping surfaces corresponding to the lower left forming block and the lower right forming block, respectively, so as to stamp the two ends of the workpiece into a defined shape.
[0017] Furthermore, the guide assembly includes an outer guide post and an inner guide post, both of which extend in the vertical direction. The outer guide post is fixed to the upper end of the lower mold base, with its upper end passing through the upper mold base. The inner guide post is fixed to the lower clamping plate / upper clamping plate, with its other end passing through the lower positioning block / upper positioning block.
[0018] The beneficial effects of the copper rod stamping die provided by this utility model are:
[0019] 1. The copper rod stamping die of this utility model, by setting positioning structures, elastic elements and guide limiting structures on the upper and lower positioning blocks, allows the middle part of the workpiece to be clamped between the upper and lower positioning blocks before stamping, avoiding the workpiece from deviating during stamping and improving the stamping accuracy of the workpiece; in addition, after stamping, the lower positioning block will move upward under the pushing of the elastic element, and the upper positioning block will move downward under the pushing of the elastic element. At this time, the workpiece can be separated from the lower and upper forming blocks, thereby avoiding the workpiece from getting stuck on the die and improving the production efficiency of copper rods.
[0020] 2. By setting inner guide pillars and outer guide pillars on the lower die base and the lower positioning block respectively, the positioning component and the stamping component can cooperate vertically under the guidance of the inner guide pillars and the outer guide pillars, thereby improving the stamping accuracy of the forming die. Attached Figure Description
[0021] Figure 1 A schematic diagram of the structure of a copper rod stamping die provided by this utility model;
[0022] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0023] Figure 3 for Figure 1 The top view of the lower seat shown.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Upper base; 11. Upper bearing plate; 12. Upper pad plate; 13. Upper mold base; 14. Upper clamping plate; 15. Limiting hole; 16. Bottom hole; 17. Guide hole;
[0026] 2. Lower base; 21. Lower support plate; 22. Lower backing plate; 23. Lower mold base; 24. Lower clamping plate;
[0027] 3. Guide assembly; 31. Outer guide post; 32. Inner guide post;
[0028] 4. Positioning component; 41. Upper positioning block; 42. Lower positioning block; 43. Positioning groove; 44. Elastic support structure; 45. Spring; 46. Limiting screw; 47. Limiting hole; 48. Bottom hole; 49. Guide hole;
[0029] 5. Stamping assembly; 51. Upper left forming block; 52. Upper right forming block; 53. Lower left forming block; 54. Lower right forming block; 6. Workpiece. Detailed Implementation
[0030] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0031] Example 1 of a copper rod stamping die provided by this utility model:
[0032] like Figures 1 to 3 As shown, the copper rod stamping die includes an upper body 1, a lower body 2, a guide assembly 3, a positioning assembly 4, and a stamping assembly 5. The upper body 1 and lower body 2 are the supporting structures for the stamping assembly 5 and the positioning assembly 4, used to move the stamping assembly 5 and the positioning assembly 4 closer or further apart under the action of an external driving device. The positioning assembly 4 is located between the upper body 1 and the lower body 2, used to position the workpiece 6 before stamping. The stamping assembly 5 is located between the upper body 1 and the lower body 2 and at the left and right ends of the positioning assembly 4, used to complete the stamping forming of the two ends of the workpiece 6. The guide assembly 3 is used to improve the stamping accuracy of the die.
[0033] The following section will first introduce the upper seat 1 and the lower seat 2, as follows: Figure 1As shown, the upper body 1, from top to bottom, includes an upper support plate 11, an upper pad plate 12, an upper mold base 13, and an upper clamping plate 14. The upper support plate 11, the upper pad plate 12, and the upper mold base 13 are all fixedly connected by locating pins and bolts. The upper clamping plate 14 is fixedly connected to the upper mold base 13 by bolts. The lower body 2, from top to bottom, includes a lower clamping plate 24, a lower mold base 23, a lower pad plate 22, and a lower support plate 21. The lower support plate 21, the lower pad plate 22, and the lower mold base 23 are all fixedly connected by locating pins and bolts. The lower clamping plate 24 is fixedly connected to the lower mold base 23 by bolts.
[0034] The following describes positioning component 4, such as... Figure 1 As shown, the positioning component 4 includes an upper positioning block 41, a lower positioning block 42, and an elastic support structure 44. The upper positioning block 41 and the lower positioning block 42 are movably mounted on the lower end of the upper clamping plate 14 and the upper end of the lower clamping plate 24, respectively, through the elastic support structure 44. Both the upper positioning block 41 and the lower positioning block 42 are rectangular blocks. The lower end face of the upper positioning block 41 and the upper end face of the lower positioning block 42 both have positioning structures, which are positioning grooves 43. Their shapes match the outer shape of the middle part of the workpiece 6. The two positioning grooves 43 are used to cooperate with each other and clamp the middle part of the workpiece 6 to prevent the two ends of the workpiece 6 from shifting during the stamping process.
[0035] The elastic support structure 44 includes an elastic element and a limiting structure. The elastic element is a spring 45, and the limiting structure includes a limiting screw 46 and a limiting hole 4715. Figure 2 As shown, the limiting hole 4715 includes a bottom hole 4816 and a guide hole 4917. Both the bottom hole 4816 and the guide hole 4917 extend in the vertical direction and are coaxially arranged. The bottom hole 4816 is located on the upper mold base 13 / lower mold base 23, and the guide hole 4917 is located on the upper clamping plate 14 / lower clamping plate 24. The diameter of the guide hole 4917 is smaller than the diameter of the bottom hole 4816 to form a stepped hole. The limiting screw 46 is a half-thread screw. One threaded end of the limiting screw 46 is screwed to the upper positioning block 41 / lower positioning block 42. One head end of the limiting screw 46 passes through the bottom hole 4816, and its waist passes through the guide hole 4917, so that the limiting screw 46 can move up and down along the axial direction of the guide hole 4917, and the movement stroke of the limiting screw 46 is limited by the stepped hole. The spring 45 passes through the upper clamping plate 14 / lower clamping plate 24 and is fixedly installed on the upper mold base 13 / lower mold base 23. It extends in the vertical direction and is used to push the upper positioning block 41 and the lower positioning block 42 closer to each other. In other embodiments, the elastic element is elastic rubber.
[0036] The stamping component 5 is described below, such as... Figure 1As shown, the stamping assembly 5 includes an upper forming block and a lower forming block. The upper forming block is fixed to the lower side of the upper clamping plate 14 by bolts, and the lower forming block is fixed to the upper side of the lower clamping plate 24 by bolts. The upper forming block includes an upper left forming block 51 and an upper right forming block 52, which are respectively adjacent to the left and right sides of the upper positioning block 41. The lower forming block includes a lower left forming block 53 and a lower right forming block 54, which are respectively adjacent to the left and right sides of the lower positioning block 42. The upper left forming block 51 and the upper right forming block 52 have mutually cooperating stamping surfaces corresponding to the lower left forming block 53 and the lower right forming block 54, so as to stamp the two ends of the workpiece 6 into a defined shape.
[0037] The following describes guide component 3, such as... Figure 3 As shown, the guide assembly 3 includes inner guide posts 32 and outer guide posts 31, both extending vertically. There are four inner guide posts 32, one end of which is fixed to the lower clamping plate 24 / upper clamping plate 14, and the other end passes through the lower positioning block 42 / upper positioning block 41 to improve the positioning accuracy of the workpiece 6. There are also four outer guide posts 31, with their lower ends fixed to the lower die base 23 and their upper ends passing through the upper die base 13 to ensure the overall stamping accuracy of the forming die.
[0038] The working principle of a copper rod stamping die is summarized as follows:
[0039] First, the workpiece 6 to be stamped is placed in the positioning groove 43 of the lower positioning block 42. At this time, the lower positioning block 42 moves away from the lower clamping plate 24 under the action of the spring 45. Then, the upper seat 1 is driven to move downward. During the downward movement of the upper seat 1, the lower side of the upper positioning block 41 and the upper side of the lower positioning block 42 first make contact, and at the same time, the workpiece 6 is fixed between the upper positioning block 41 and the lower positioning block 42 through the positioning groove 43. Then, the springs 45 on both sides are gradually compressed, and the two ends of the workpiece 6 are stamped into a defined shape under the cooperation of the upper forming block and the lower forming block.
[0040] Then the upper seat 1 is driven to move upward. Under the action of the spring 45, the workpiece 6 is separated from the upper forming block and the lower forming block. When the upper positioning block 41 and the lower positioning block 42 disengage and move to the upper limit position, the stamping operation of the workpiece 6 is completed.
[0041] Embodiment 2 of the copper rod stamping die provided by this utility model:
[0042] Its main difference from Example 1 is:
[0043] In Example 1, the guide limiting structure includes a limiting hole and a limiting screw.
[0044] In this embodiment, the guide limiting structure includes a limiting block fixed on the upper molding block / lower molding block and a stop block fixed on the upper positioning block / lower positioning block that cooperates with the corresponding limiting block, thereby realizing the travel limit of the upper positioning block and the lower positioning block.
[0045] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0046] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.
Claims
1. A copper rod stamping die, comprising an upper body, a lower body, a guide assembly, a positioning assembly, and a stamping assembly, characterized in that: The positioning component includes an upper positioning block, a lower positioning block, and an elastic support structure. The upper and lower positioning blocks are used to clamp the workpiece. The stamping surfaces of the upper and lower positioning blocks each have a positioning structure for limiting the position of the workpiece. The elastic support structure includes an elastic element and a guide limiting structure. The elastic element is located between the upper positioning block / lower positioning block and the upper seat / lower seat, and is used to push the upper positioning block and the lower positioning block closer to each other. The guide limiting structure is used to restrict the upper positioning block / lower positioning block from moving up and down and to limit the travel of the upper positioning block / lower limiting block.
2. The copper rod stamping die according to claim 1, characterized in that, The guide limiting structure includes a limiting screw and a limiting hole. The limiting hole is a stepped hole located in the upper and lower seats. The limiting screw extends in the vertical direction. The threaded end of the limiting screw is screwed to the upper / lower positioning block. One end of its head slides through the limiting hole, and the maximum stroke of the limiting screw is limited by the stepped structure.
3. The copper rod stamping die according to claim 1, characterized in that, The elastic element is a spring, which is fixedly installed on the upper / lower seat.
4. The copper rod stamping die according to claim 1, characterized in that, The positioning structure is a positioning groove, the shape of which matches the shape of the workpiece. Two positioning grooves are used to clamp the workpiece to prevent it from shifting during the stamping process.
5. A copper rod stamping die according to claim 2, characterized in that, The upper body includes an upper mold base and an upper clamping plate adjacent to the lower side of the upper mold base. The lower body includes a lower mold base and a lower clamping plate adjacent to the upper side of the lower mold base. The upper mold base and the upper clamping plate are fixedly connected, and the lower mold base and the lower clamping plate are fixedly connected. Both the upper mold base and the lower mold base have bottom holes, and both the upper clamping plate and the lower clamping plate have guide holes. The diameter of the bottom hole is smaller than the diameter of the guide hole. The bottom hole and the guide hole together form the limiting hole.
6. A copper rod stamping die according to claim 5, characterized in that, The stamping assembly includes an upper forming block fixed on the upper clamping plate and a lower forming block fixed on the lower clamping plate. The upper forming block includes an upper left forming block and an upper right forming block that are respectively adjacent to the left and right sides of the upper positioning block. The lower forming block includes a lower left forming block and a lower right forming block that are respectively adjacent to the left and right sides of the lower positioning block. The upper left forming block and the upper right forming block have mutually cooperating stamping surfaces corresponding to the lower left forming block and the lower right forming block, respectively, so as to stamp the two ends of the workpiece into a defined shape.
7. A copper rod stamping die according to claim 5, characterized in that, The guiding assembly includes an outer guide post and an inner guide post, both of which extend in the vertical direction. The outer guide post is fixed to the upper end of the lower mold base, with its upper end passing through the upper mold base. The inner guide post is fixed to the lower clamping plate / upper clamping plate, with its other end passing through the lower positioning block / upper positioning block.