CN202570960U - Hexagonal socket punching die for screw - Google Patents
Hexagonal socket punching die for screw Download PDFInfo
- Publication number
- CN202570960U CN202570960U CN 201220083329 CN201220083329U CN202570960U CN 202570960 U CN202570960 U CN 202570960U CN 201220083329 CN201220083329 CN 201220083329 CN 201220083329 U CN201220083329 U CN 201220083329U CN 202570960 U CN202570960 U CN 202570960U
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- CN
- China
- Prior art keywords
- die
- punch
- screw
- punching
- pin
- 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
The utility model relates to a hexagonal socket punching die for a screw. The punching die comprises a punching die body in which a die cavity is formed. A punch capable of sliding up and down along the die cavity is arranged in the die cavity. A punching pin is coaxially arranged at the bottom of the punch. The external diameter of the punch is greater than that of the punching pin. Elastic devices are arranged below the punch in the die cavity. According to the hexagonal socket punching die for the screw, when a hexagonal socket is machined, an upper die and a lower die are closed, the punching pin is driven by the punch to downwards punch and extrude the head part of the screw, and when the head part of the screw is extruded to a certain depth by the punching pin, the elastic devices are pressed by the bottom of the punch, and has a function of relaxing impact force, so that the breaking phenomenon of the punching pin in a forcible extrusion process is avoided, and the service life of the punching pin is prolonged; and by the designs of six cutting edges on the head end part of the punching pin, the quality of a product is ensured.
Description
Technical field
The utility model relates to a kind of mould, relates in particular to a kind of punch die that is used for hexagonal punching in the screw head.
Background technology
At present, soket head cap screw mainly relies on cold-heading molding, and its head hexagonal configuration generally forms through the interior hexagonal punch die impact extrusion of integral body.In the process, as obtaining product smoothly, punch die must use bigger impact extrusion power, these punch dies in actual use, service life is low, fractures easily, also cause product quality be difficult to control; Simultaneously, because the surface roughness of mould own is poor, product appearance quality also is difficult to improve.
The utility model content
The utility model purpose is for the deficiency that overcomes prior art a kind of high life to be provided and to help hexagonal punch die in the screw of control of product quality.
For achieving the above object, the technical scheme that the utility model adopts is: hexagonal punch die in a kind of screw, comprise the punch die body, and be provided with die cavity in the said punch die body, be provided with the drift that can slide up and down along die cavity in the said die cavity; Said ram bottom is coaxial to be provided with towards pin; The external diameter of said drift is greater than towards the pin external diameter; In die cavity and below being in drift, be provided with elastic device.
Preferably, said elastic device is made up of connecting plate and the spring that is arranged on the connecting plate bottom; Said elastic device has two groups, is symmetricly set on the both sides towards pin.
Preferably, said cephalic par towards pin is provided with six cutting edges.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
Hexagonal punch die in the screw of the utility model scheme; Drift through can sliding up and down along die cavity, towards the structural design of pin and the elastic device that is provided with towards the pin both sides, make it in processing during hexagonal, patrix and counterdie matched moulds; Drift drives towards the downward impact extrusion of pin and presses screw head; When pin is expressed to certain depth, ram bottom is pressed onto elastic device, and an elastic device impulsive force that liquidates has played abirritation; Thereby avoided the phenomenon that in the powerful extrusion process of pin, fractures, improved service life towards pin; Design towards six cutting edges of cephalic par of pin has guaranteed product quality.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Accompanying drawing 1 is in not structural representation under the punching press state for hexagonal punch die in a kind of screw of the utility model;
Accompanying drawing 2 is in structural representation under the punching press state for hexagonal punch die in a kind of screw of the utility model;
Accompanying drawing 3 is towards the needle construction sketch map in the interior hexagonal punch die of a kind of screw of the utility model
Wherein: 1, punch die body; 2, die cavity; 3, drift; 4, towards pin; 5, elastic device; 6, connecting plate; 7, spring; 8, cutting edge.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Accompanying drawing 1,2,3 is a hexagonal punch die in the described a kind of screw of the utility model, comprises punch die body 1, is provided with die cavity 2 in the said punch die body 1, is provided with the drift 3 that can slide up and down along die cavity 2 in the said die cavity 2; The bottom of said drift 3 is coaxial to be provided with towards pin 4; The external diameter of said drift 3 is greater than the external diameter towards pin 4; In die cavity 2 and below being in drift 3, be provided with elastic device 5.Said elastic device 5 is made up of connecting plate and the spring 7 that is arranged on connecting plate 6 bottoms; Said elastic device 5 has two groups, is symmetricly set on towards the both sides of pin 4; Said cephalic par towards pin 4 is provided with six cutting edges 8.
Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (3)
1. hexagonal punch die in the screw comprises the punch die body, is provided with die cavity in the said punch die body, it is characterized in that: be provided with the drift that can slide up and down along die cavity in the said die cavity; Said ram bottom is coaxial to be provided with towards pin; The external diameter of said drift is greater than towards the pin external diameter; In die cavity and below being in drift, be provided with elastic device.
2. hexagonal punch die in a kind of screw according to claim 1 is characterized in that: said elastic device is made up of connecting plate and the spring that is arranged on the connecting plate bottom; Said elastic device has two groups, is symmetricly set on the both sides towards pin.
3. hexagonal punch die in a kind of screw according to claim 1, it is characterized in that: said cephalic par towards pin is provided with six cutting edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083329 CN202570960U (en) | 2012-03-08 | 2012-03-08 | Hexagonal socket punching die for screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083329 CN202570960U (en) | 2012-03-08 | 2012-03-08 | Hexagonal socket punching die for screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202570960U true CN202570960U (en) | 2012-12-05 |
Family
ID=47240412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220083329 Expired - Fee Related CN202570960U (en) | 2012-03-08 | 2012-03-08 | Hexagonal socket punching die for screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202570960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377744A (en) * | 2017-08-04 | 2017-11-24 | 格林精密部件(苏州)有限公司 | One kind is used for screw rod low side punching press hexagonal hole tool |
-
2012
- 2012-03-08 CN CN 201220083329 patent/CN202570960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377744A (en) * | 2017-08-04 | 2017-11-24 | 格林精密部件(苏州)有限公司 | One kind is used for screw rod low side punching press hexagonal hole tool |
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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: 20121205 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |