CN203678991U - Tail punching die applicable to flange screws - Google Patents
Tail punching die applicable to flange screws Download PDFInfo
- Publication number
- CN203678991U CN203678991U CN201320847733.XU CN201320847733U CN203678991U CN 203678991 U CN203678991 U CN 203678991U CN 201320847733 U CN201320847733 U CN 201320847733U CN 203678991 U CN203678991 U CN 203678991U
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- CN
- China
- Prior art keywords
- punching die
- die
- flange
- hole
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A tail punching die applicable to flange screws comprises a die holder and a punching die housing and is characterized in that a die core is inset in the die holder; an end surface of the die core is higher than an end surface of the die holder; a groove which is corresponding to a flange is formed in the end surface of the die core; a punching die head is inset in the punching die housing; a through hole is formed in the middle of the punching die head; the front end of the through hole is in a cone shape; a punching die external surface which exposed out of the punching die housing is a conical surface. The tail punching die applicable to the flange screws has the advantages of trimming flange faces of the flange screws which are produced through previous cold extruding, overcoming non-round flange faces and improving the size accuracy;, meanwhile well solving removing of trimmed scraps due to the fact that the through hole is formed in the center of the punching die head, the front end of the through hole is in the cone shape, and the punching die head external surface which exposed out of the punching die housing is the conical surface; being good in using effect.
Description
Technical field
The utility model relates to screw cold-punching mold, specifically refers to a kind of extreme trace punch die that is applicable to flange screw.
Background technology
The flange screw of prior art produces the mode that adopts cold-extrusion shaping processing, because nose shape is more complicated, deflection is large, not rounding of head flanges face, and dimensional accuracy cannot meet instructions for use.
Summary of the invention
The purpose of this utility model is to propose a kind of extreme trace punch die that is applicable to flange screw.
The purpose of this utility model is achieved in that a kind of extreme trace punch die that is applicable to flange screw of the present utility model, it comprises die holder and punch die shell, it is characterized in that being inlaid with on die holder core rod, the end face of core rod is higher than the end face of die holder, on the end face of core rod, have the groove corresponding to flange, on punch die shell, be inlaid with the nose of punch, there is through hole the centre of the nose of punch, the front end of above-mentioned through hole is tapered, and the nose of punch outer surface that is exposed to punch die shell is the conical surface.
The extreme trace punch die that is applicable to flange screw of the present utility model, can Dui Qian road the flange face of the flange screw produced of cold extrusion repair and cut, overcome flange face not rounding, improved dimensional accuracy, simultaneously because there is through hole the centre of the nose of punch, the front end of above-mentioned through hole is tapered, the nose of punch outer surface that is exposed to punch die shell is the conical surface, can solve the removal of repairing the waste material cutting, and has the advantages that result of use is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the extreme trace punch die that is applicable to flange screw of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail:
As shown in Figure 1, a kind of extreme trace punch die that is applicable to flange screw of the present utility model, it comprises die holder 4 and punch die shell 1, it is characterized in that being inlaid with core rod 3 on die holder 4, the end face of core rod 3, higher than the end face of die holder 4, has the groove corresponding to flange on the end face of core rod 3, on punch die shell 1, be inlaid with the nose of punch 2, there is through hole the centre of the nose of punch 2, and the front end of above-mentioned through hole is tapered, and the nose of punch 2 outer surfaces that are exposed to punch die shell 1 are the conical surface.
Claims (1)
1. one kind is applicable to the extreme trace punch die of flange screw, it comprises die holder (4) and punch die shell (1), it is characterized in that being inlaid with on die holder (4) core rod (3), the end face of core rod (3) is higher than the end face of die holder (4), on the end face of core rod (3), have the groove corresponding to flange, be inlaid with the nose of punch (2) on punch die shell (1), there is through hole the centre of the nose of punch (2), the front end of above-mentioned through hole is tapered, and the nose of punch (2) outer surface that is exposed to punch die shell (1) is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847733.XU CN203678991U (en) | 2013-12-21 | 2013-12-21 | Tail punching die applicable to flange screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320847733.XU CN203678991U (en) | 2013-12-21 | 2013-12-21 | Tail punching die applicable to flange screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203678991U true CN203678991U (en) | 2014-07-02 |
Family
ID=51000951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320847733.XU Expired - Fee Related CN203678991U (en) | 2013-12-21 | 2013-12-21 | Tail punching die applicable to flange screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203678991U (en) |
-
2013
- 2013-12-21 CN CN201320847733.XU patent/CN203678991U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20201221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |