Stamping die capable of quickly replacing punch and ensuring material stability
By introducing a quick-change structure and a material stabilization structure into the stamping die, the problems of cumbersome punch replacement and material slippage and warping have been solved, achieving quick replacement and stable stamping, and improving the quality of finished products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AOLIN AUTO PARTS (CHANGSHU) CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-31
AI Technical Summary
The existing stamping dies are cumbersome to change punches, and the material is prone to slippage and warping during the stamping process, which affects the quality of the finished product.
A stamping die including a quick-change structure and a material stabilization structure was designed. The quick-change structure enables rapid punch replacement through a combination of quick-release blocks and punches. The material stabilization structure prevents material slippage and warping through positioning beams and pressure rollers.
It enables quick punch replacement and stable material stamping, avoiding slippage and warping, and improving the quality of finished products.
Smart Images

Figure CN224574483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing, and in particular to a stamping die that can quickly change punches and ensure material stability. Background Technology
[0002] Stamping dies are specialized process equipment installed on a press to apply pressure to metal or non-metal materials such as sheet metal, strip metal, and tubing placed inside, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts.
[0003] The stamping die mainly consists of an upper die and a lower die. The press drives the upper die to move downwards, and the punch contacts the sheet metal and presses it into the lower die. Under strong pressure, the material undergoes elastic deformation, plastic deformation, and eventually shear separation or permanent plastic deformation. Then the upper die returns, and the workpiece or scrap is removed from the lower die by the unloading device, completing one work cycle.
[0004] To facilitate quick punch replacement, punches are typically connected by assembly on the bottom surface of the upper die. However, for dies with very small gaps between the upper and lower dies, the upper die must be lifted for replacement, which is very troublesome. In addition, the material is prone to slippage and warping during stamping, affecting the quality of the finished product. Utility Model Content
[0005] The main technical problem solved by this utility model is to provide a stamping die that can quickly change punches and ensure material stability. It can not only quickly change the punches of the upper and lower die groups with small gaps, but also make the material stable during stamping and avoid slippage and warping.
[0006] To solve the above technical problems, the present invention adopts the following technical solution: providing a stamping die that can quickly change punches and ensure material stability, including an upper die assembly and a lower die assembly. The upper die assembly is installed on the slide of the press, and the lower die assembly is fixed on the worktable of the press. The upper die assembly and the lower die assembly are also equipped with a quick-change structure and a material stabilization structure. The quick-change structure is installed in the upper module, and the material stabilizing structure is installed in the lower module.
[0007] In a preferred embodiment of the present invention, the upper module includes an upper mold base, an upper pad, an upper fixing plate, a stop plate, and a stripper plate, which are sequentially fixedly connected from top to bottom by bolts.
[0008] In a preferred embodiment of the present invention, the quick-change structure is inserted downward from the top of the upper mold base into the upper mold assembly. The quick-change structure includes a quick-release block and a punch, with the punch installed at the bottom of the quick-release block.
[0009] In a preferred embodiment of this utility model, the quick-release block is provided with an upper mold base insert block, an upper pad plate insert block, and an upper fixing plate insert block with gradually decreasing cross-sections from top to bottom. The upper mold base insert block, the upper pad plate insert block, and the upper fixing plate insert block respectively cooperate with the openings on the upper mold base, the upper pad plate, and the upper fixing plate. The punch penetrates the stop plate and the stripper plate and then contacts the lower template.
[0010] In a preferred embodiment of the present invention, the lower module includes a lower template, a lower fixing plate, a lower pad, a lower mold base, and a lower support plate. The lower template, the lower fixing plate, the lower pad, and the lower mold base are sequentially fixedly connected from top to bottom by bolts. The lower support plate is connected to the lower mold base by a lower pad foot.
[0011] In a preferred embodiment of this utility model, the material stabilizing structure includes two side positioning beams and two pressure rollers. The two side positioning beams are symmetrically arranged on the lower template, and the two pressure rollers are mounted on the lower mold base by a bracket.
[0012] The beneficial effects of this utility model are: This utility model provides a stamping die that can quickly change punches and ensure material stability. The stamping die has a quick-change structure and a material stabilization structure, which can not only complete the quick change of punches between the upper and lower dies with small gaps, but also ensure the stability of the material during stamping, avoid slippage and warping, thereby ensuring the quality of the finished product. Attached Figure Description
[0013] Figure 1 This is a three-dimensional view of a stamping die that allows for quick punch changes and ensures material stability.
[0014] Figure 2 This is a front view of a quick-change structure in a stamping die that allows for rapid punch replacement and ensures material stability.
[0015] Figure 3 This is a partial three-dimensional view of a material stabilizing structure installed on the lower die base in a stamping die that allows for quick punch replacement and ensures material stability.
[0016] The components in the attached diagram are labeled as follows: 1. Upper mold base; 2. Upper pad plate; 3. Upper fixing plate; 4. Stop plate; 5. Stripper plate; 6. Lower mold plate; 7. Lower fixing plate; 8. Lower pad plate; 9. Lower mold base; 10. Lower support foot; 11. Lower support plate; 12. Quick release block; 13. Punch; 14. Bracket; 15. Pressure roller; 16. Positioning beam. Detailed Implementation
[0017] The preferred embodiments of the present invention will be described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0018] according to Figures 1 to 3 A stamping die that allows for quick punch replacement and ensures material stability includes an upper die assembly and a lower die assembly. The upper die assembly is mounted on the slide of a press, and the lower die assembly is fixed to the worktable of the press. The upper and lower die assemblies are also equipped with quick-change structures and material stabilization structures. This not only enables quick replacement of the punches 13 between the upper and lower dies with small gaps, but also ensures material stability during stamping, preventing slippage and warping, thereby guaranteeing the quality of the finished product.
[0019] The quick-change structure is installed in the upper module, and the material stabilizing structure is installed in the lower module.
[0020] The upper module includes an upper mold base 1, an upper pad 2, an upper fixing plate 3, a stop plate 4, and a stripper plate 5. The upper mold base 1, the upper pad 2, the upper fixing plate 3, the stop plate 4, and the stripper plate 5 are sequentially fixedly connected from top to bottom by bolts. The quick-change structure is inserted into the upper module from the top of the upper mold base 1 downwards.
[0021] Compared to the traditional bottom-up installation method, the top-down replacement method can handle all replacement scenarios and is also applicable to stamping dies where the gap between the upper and lower modules is insufficient for the quick-change structure to pass through.
[0022] The quick-change structure includes a quick-release block 12 and a punch 13, with the punch 13 mounted on the bottom of the quick-release block 12.
[0023] The quick-release block 12 is provided with an upper mold base 1 insert block, an upper pad plate 2 insert block, and an upper fixing plate 3 insert block with gradually decreasing cross-sections from top to bottom. The upper mold base 1 insert block, the upper pad plate 2 insert block, and the upper fixing plate 3 insert block respectively cooperate with the openings on the upper mold base 1, the upper pad plate 2, and the upper fixing plate 3. The punch 13 passes through the stop plate 4 and the stripper plate 5 and then contacts the lower template 6.
[0024] The quick-release block 12 has a structure that is larger at the top and smaller at the bottom, which allows it to be directly placed on top of the upper module during installation, increasing its replacement speed.
[0025] The lower module includes a lower template 6, a lower fixing plate 7, a lower pad plate 8, a lower mold base 9, and a lower support plate 11. The lower template 6, the lower fixing plate 7, the lower pad plate 8, and the lower mold base 9 are connected in sequence from top to bottom by bolts. The lower support plate 11 is connected to the lower mold base 9 by a lower pad foot 10.
[0026] The material stabilization structure includes two side positioning beams 16 and two pressure rollers 15. The two side positioning beams 16 are symmetrically arranged on the lower template 6. The two side positioning beams 16 are used to prevent the material from swaying left and right during stamping, so as to make the material conveying more stable.
[0027] The pressure roller 15 is mounted on the lower die base 9 via the bracket 14. The pressure roller 15 is used to press the material during stamping to prevent warping and thus ensure the quality of the finished product.
[0028] Compared with the prior art, the present invention provides a stamping die that can quickly change punches and ensure material stability. The stamping die has a quick-change structure and a material stabilization structure, which can not only complete the quick change of punches between the upper and lower dies with small gaps, but also ensure the stability of the material during stamping, avoid slippage and warping, and thus ensure the quality of the finished product.
[0029] In the description of this utility model, it should be noted that all components are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional test methods. The terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A stamping die capable of rapidly replacing a punch and ensuring material stability, comprising an upper die set and a lower die set, the upper die set being mounted on a slide of a press machine, the lower die set being fixed on a table surface of the press machine, characterized in that, The upper module and the lower module are also equipped with quick-change structures and material stabilization structures. The quick-change structure is installed in the upper module, and the material stabilizing structure is installed in the lower module; The upper module includes an upper mold base, an upper pad, an upper fixing plate, a stop plate, and a stripper plate. The upper mold base, the upper pad, the upper fixing plate, the stop plate, and the stripper plate are connected in sequence from top to bottom by bolts. The quick-change structure is inserted downward from the top of the upper mold base into the upper mold assembly. The quick-change structure includes a quick-release block and a punch, with the punch installed at the bottom of the quick-release block. The quick-release block is provided with an upper mold base insert block, an upper pad plate insert block, and an upper fixing plate insert block with gradually decreasing cross-sections from top to bottom. The upper mold base insert block, the upper pad plate insert block, and the upper fixing plate insert block respectively cooperate with the openings on the upper mold base, the upper pad plate, and the upper fixing plate. The punch penetrates the stop plate and the stripper plate and then contacts the lower template. The lower module includes a lower template, a lower fixing plate, a lower pad, a lower mold base, and a lower support plate. The lower template, the lower fixing plate, the lower pad, and the lower mold base are sequentially fixed together from top to bottom by bolts. The lower support plate is connected to the lower mold base by a lower pad foot. The material stabilizing structure includes two side positioning beams and two pressure rollers. The two side positioning beams are symmetrically arranged on the lower template, and the two pressure rollers are mounted on the lower mold base by a bracket.