CN202951760U - Fin punching mould of starting pawl - Google Patents
Fin punching mould of starting pawl Download PDFInfo
- Publication number
- CN202951760U CN202951760U CN 201220514595 CN201220514595U CN202951760U CN 202951760 U CN202951760 U CN 202951760U CN 201220514595 CN201220514595 CN 201220514595 CN 201220514595 U CN201220514595 U CN 201220514595U CN 202951760 U CN202951760 U CN 202951760U
- Authority
- CN
- China
- Prior art keywords
- upper punch
- mould
- taper hole
- cutting edge
- starting pawl
- 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
Links
- 238000004080 punching Methods 0.000 title abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 239000007858 starting material Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Disclosed is a fin punching mould of a starting pawl. The mould comprises an upper punch, a cutting edge is arranged at the bottom of the upper punch, an inner taper hole connected with the cutting edge is mounted at the bottom of the upper punch, and the inner taper hole and the bottom surface of the upper punch form a 20-degree included angle. The width of the cutting edge is increased and the gradient of the inner taper hole is reduced, so that the problems that the upper punch is prone to be notched and large burrs of products and metal tearing are prone to occur in the punching process are solved. The fin punching mould of the starting pawl has the advantages that the product quality and production efficiency in the fin punching process of the starting pawl are improved, and simultaneously, the service life of the mould is prolonged.
Description
Technical field
This utility model relates to a kind of overlap mould that rushes, and particularly a kind of mould be used to rushing motorcycle starting ratchet overlap belongs to the metal stamping technical field.
Background technology
When at present the motorcycle starting ratchet rushed overlap, it is serious that the easy breach of mold, and burr is large after the punching press, metal are torn phenomenon, has a strong impact on product quality and production efficiency.
Summary of the invention
Goal of the invention: the purpose of this utility model provides in a kind of punching course can not produce breach, and product can not produce the motorcycle starting ratchet of tearing with burr and rush the overlap mould.
Technical scheme: a kind of starter dog rushes the overlap mould, comprises upper punch, and described upper punch bottom is provided with cutting edge, and described upper punch bottom is provided with cutting edge and is connected internal taper hole, and described internal taper hole and upper punch bottom surface are 20 ° of angles.By increasing edge width and the method that reduces the internal taper hole gradient, solved the easy breach of upper punch, product produces the problem that larger burr and metal are torn easily in the punching course.
Beneficial effect: the utility model has improved quality and production efficiency that starter dog rushes product in the overlap operation process, has prolonged simultaneously the mold use life-span.
Description of drawings
Fig. 1 is the structural representation of the utility model upper punch.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in the figure, a kind of starter dog rushes the overlap mould, comprises upper punch 1, and described upper punch 1 bottom is provided with cutting edge 2, and described upper punch 1 bottom is provided with cutting edge 2 and is connected internal taper hole 3, and described internal taper hole 3 is 20 ° of angles with upper punch 1 bottom surface.By increasing cutting edge 2 width and the method that reduces internal taper hole 3 gradients, solved upper punch 1 easy breach, product produces the problem that larger burr and metal are torn easily in the punching course.
Facts have proved the upper punch long service life that the starter dog after improving rushes the overlap mould, punching course is stable; Product is without burr, reliable in quality.
In sum: the starter dog stable and reliable product quality that the Mould Machining after improving goes out, production efficiency improves, and cost obviously descends, and can satisfy client's demand.
Claims (1)
1. a starter dog rushes the overlap mould, comprise upper punch (1), it is characterized in that: described upper punch (1) bottom is provided with cutting edge (2), described upper punch (1) bottom is provided with cutting edge (2) and is connected internal taper hole (3), and described internal taper hole (3) is 20 ° of angles with upper punch (1) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514595 CN202951760U (en) | 2012-10-09 | 2012-10-09 | Fin punching mould of starting pawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514595 CN202951760U (en) | 2012-10-09 | 2012-10-09 | Fin punching mould of starting pawl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202951760U true CN202951760U (en) | 2013-05-29 |
Family
ID=48457354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220514595 Expired - Fee Related CN202951760U (en) | 2012-10-09 | 2012-10-09 | Fin punching mould of starting pawl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202951760U (en) |
-
2012
- 2012-10-09 CN CN 201220514595 patent/CN202951760U/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: 20130529 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |