CN219522338U - Punching structure of forming punching die - Google Patents
Punching structure of forming punching die Download PDFInfo
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- CN219522338U CN219522338U CN202223446737.5U CN202223446737U CN219522338U CN 219522338 U CN219522338 U CN 219522338U CN 202223446737 U CN202223446737 U CN 202223446737U CN 219522338 U CN219522338 U CN 219522338U
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- die
- punching
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- forming
- mould
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Abstract
The utility model relates to a punching structure of a forming punching die, which comprises an upper die and a lower die, wherein a plurality of round hole tool holders are arranged in the upper die, a plurality of cylindrical punching tools matched with the round hole tool holders are arranged on the lower die, the cylindrical punching tools correspond to the round hole tool holders one by one, and the tool bit part of the cylindrical punching tools is in an inclined plane shape. Compared with the prior art, the utility model has the advantages of improving the roundness of punched holes and the like.
Description
Technical Field
The utility model relates to a punching structure, in particular to a punching structure of a forming punching die.
Background
The mould of the hard composite material product is generally divided into a forming mould and a punching mould, and the purpose is to put the raw material into a cold forming mould after the raw material is heated to a preset temperature, cool the raw material into a stable product shape, and punch the hole site and the outline of the product into place by using the punching mould, so that the product reaches the tolerance requirement range, and the qualified product is obtained.
The method for manufacturing the product by dividing the product into two works is the most common in reality, but has the problem of more working procedures, so that the manufacturing time period is long, manual participation is unavoidable in each procedure, the labor cost is increased, and the factors of large period, tedious manual participation and the like in batch production are caused.
Based on this, in order to solve the above problems, a person skilled in the art is dedicated to combining two processes, specifically, integrating a forming die and a punching die, and forming a product with a height drop, and punching the product to finally obtain an ideal product, but in the practical application process, for some products needing punching, the quality of the forming is not high, the roundness is not sufficient, the error is difficult to control within a tolerance range, and the reject ratio is high.
Disclosure of Invention
The utility model aims to provide a punching structure of a forming punching die, wherein a tool bit part of a cylindrical punching tool is arranged to be inclined, so that a height fall is formed, after the requirement of the die punching height is met, a knife edge for local inclination reduction treatment starts to play a role, firstly, a large arc edge far away from a material is punched, the punching requirement is met, the punching is positioned in advance, and after die assembly is finished, a large arc edge near the material is punched, so that an ideal hole site is obtained, and the roundness of punching is improved.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a punching structure of die-cut mould of shaping, includes mould and lower mould, be equipped with a plurality of round hole blade holders in the last mould, be equipped with a plurality of cylinder die-cut cutters with round hole blade holder complex on the lower mould, each cylinder die-cut cutter and round hole blade holder one-to-one, just the tool bit part of cylinder die-cut cutter is the inclined plane form.
The upper surface of the tool bit part of the cylindrical punching tool is an elliptic plane.
The included angle between the elliptic plane and the axis of the cylindrical punching cutter is 70-80 degrees.
The included angle between the elliptic plane and the axis of the cylindrical punching cutter is 75 degrees.
The lower die is also provided with a supporting surface for supporting the cylindrical punching tool, and the top surface of the circular hole tool apron is matched with the supporting surface.
The cylindrical punching cutter is arranged at the edge of the forming area on the lower die.
Compared with the prior art, the utility model has the following beneficial effects: the tool bit part of the cylindrical punching tool is set to be inclined, so that a height difference is formed, after the requirement of die punching height is met, the tool edge for local inclination reduction treatment starts to play a role, firstly, the large arc edge far away from the material is punched, the punching requirement is met, the positioning is advanced, after die assembly is finished, the arc edge close to the material is punched, so that an ideal hole site is obtained, and the roundness of punching is improved.
Drawings
FIG. 1 is a schematic diagram of the upper die of the present utility model;
FIG. 2 is a schematic diagram of the lower die of the present utility model;
FIG. 3 is a schematic view of a prior art knife edge portion;
FIG. 4 is a schematic view of the structure of the knife edge portion of the present utility model;
FIG. 5 is an enlarged schematic view of area A of FIG. 1;
FIG. 6 is an enlarged schematic view of area B of FIG. 2;
FIG. 7 is a schematic view of a cylindrical piercing tool;
wherein: 1. the upper die, 2, the lower die, 11, the shaping area, 21, the shaping area, 12, the round hole blade holder, 22, the cylinder die-cut cutter.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.
The utility model provides a punching structure of shaping die-cut mould, includes mould 1 and lower mould 2, as shown in fig. 1, fig. 4 and fig. 5, is equipped with a plurality of round hole blade holders in the mould 1, as shown in fig. 2, fig. 4 and fig. 6, is equipped with a plurality of cylinder die-cut cutters with it complex on the lower mould 2, and each cylinder die-cut cutter and round hole blade holder one-to-one, and the tool bit part of cylinder die-cut cutter is the inclined plane form.
In the prior art as shown in fig. 3, in the process of converting molding into punching, holes at positions with large molding surface fall and large stretching of the material can be easily pulled in a specified punching depth range, so that the punched holes are changed, and the holes are not in a tolerance range, so that defective products are produced.
According to the utility model, the inclined-plane-shaped cutter head is designed, namely, the cutter head part of the cylindrical punching cutter is inclined, so that a height drop is formed, after the requirement of die punching height is met, the cutter edge subjected to local inclination reduction treatment starts to play a role, firstly, the large arc edge far away from the material is punched, the punching requirement is met, the positioning is advanced, and after die assembly is finished, the large arc edge near the material is punched, so that an ideal hole site is obtained, and the roundness of punched holes is improved.
In this embodiment, a multi-station mold design is adopted, as shown in fig. 1 and 2, a cylindrical punching tool is arranged at the edge of the forming area 22 on the lower mold 2, and similarly, circular hole tool holders are distributed at the edge of the forming area 12 on the upper mold 1.
Specifically, as shown in fig. 7, the upper surface of the head portion of the cylindrical piercing tool is an elliptical plane.
In addition, the angle between the oval plane and the axis of the cylindrical punching tool is between 70 and 80 degrees. In this embodiment, the included angle between the oval plane and the axis of the cylindrical punching tool is greater than 70 degrees, and the profile draft angle is greater than 15 degrees. Thus, the molding quality of the punched holes can be further mentioned.
As shown in fig. 5 and 6, the lower die 2 is further provided with a supporting surface for supporting the cylindrical punching tool, the top surface of the circular hole tool apron is matched with the supporting surface, and the shape of the circular hole tool apron can be a plane or a plurality of wavy curved surfaces, and the circular hole tool apron can be designed according to the requirement.
The application range of the embodiment is wider, the technology aims at a hard material and one-die multi-cavity product die, and the die with long repeated use period is used for punching the product in a linkage state, so that the fitter has no worry after debugging the product. In addition, by combining the two working procedures into one working procedure, the human intervention is reduced, and the production period is greatly shortened.
Claims (6)
1. The utility model provides a punching structure of die-cut mould of shaping, includes mould and lower mould, its characterized in that, be equipped with a plurality of round hole blade holders in the mould, be equipped with a plurality of cylinder die-cut cutters with round hole blade holder complex on the lower mould, each cylinder die-cut cutter and round hole blade holder one-to-one, just the tool bit part of cylinder die-cut cutter is the inclined plane form.
2. The punching structure of a forming die set according to claim 1, wherein an upper surface of the bit portion of the cylindrical die-cutting tool is an elliptical plane.
3. A punch structure of a forming die set according to claim 2, wherein the elliptical plane is at an angle of between 70 degrees and 80 degrees to the axis of the cylindrical die set.
4. A punch structure of a forming die set according to claim 3, wherein the oval-shaped plane is at an angle of 75 degrees to the axis of the cylindrical die set.
5. The punching structure of a forming punching die according to claim 1, wherein a supporting surface for supporting a cylindrical punching tool is further provided on the lower die, and a top surface of the circular hole tool apron is matched with the supporting surface.
6. The punching structure of a forming die set according to claim 1, wherein the cylindrical punching tool is provided at an edge of a forming region on the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223446737.5U CN219522338U (en) | 2022-12-22 | 2022-12-22 | Punching structure of forming punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223446737.5U CN219522338U (en) | 2022-12-22 | 2022-12-22 | Punching structure of forming punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219522338U true CN219522338U (en) | 2023-08-15 |
Family
ID=87645013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223446737.5U Active CN219522338U (en) | 2022-12-22 | 2022-12-22 | Punching structure of forming punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219522338U (en) |
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2022
- 2022-12-22 CN CN202223446737.5U patent/CN219522338U/en active Active
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