CN202606625U - Die for inner and outer chamfers for pan head torx self-tapping locking screw - Google Patents
Die for inner and outer chamfers for pan head torx self-tapping locking screw Download PDFInfo
- Publication number
- CN202606625U CN202606625U CN 201220116254 CN201220116254U CN202606625U CN 202606625 U CN202606625 U CN 202606625U CN 201220116254 CN201220116254 CN 201220116254 CN 201220116254 U CN201220116254 U CN 201220116254U CN 202606625 U CN202606625 U CN 202606625U
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- die
- screw
- shaped cavity
- self
- punching
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- 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 die for inner and outer chamfers for a pan head torx self-tapping locking screw. The die comprises a movable die and a fixed die matched with the movable die to be used. A punching kernel is arranged at the bottom of the movable die and made of a hard alloy material, an excircle chamfer-shaped cavity is arranged at the bottom of the punching kernel, a cone-shaped boss is arranged in the middle of the excircle chamfer-shaped cavity, and a rod-part-shaped cavity is arranged in the fixed die. According to the technical scheme, the punching kernel with the excircle chamfer-shaped cavity is arranged in the movable die, the cone-shaped boss is arranged in the middle of the excircle chamfer-shaped cavity, a screw rod part is placed in the rod-part-shaped cavity of the fixed die, the movable die drives the punching kernel to punch the head of the screw, the inner and outer chamfers positioned on the head of the screw are formed in one time, product quality and production efficiency are improved, and any waste materials are not generated.
Description
Technical field
The utility model relates to a kind of mould, relates in particular to the inside and outside chamfer mould of a kind of coiled hair plum blossom groove self-tapping lock screw.
Background technology
Coiled hair plum blossom groove self-tapping lock screw comprises screw head, bar portion, is provided with the plum blossom groove in the said screw head.In the prior art, needing before the plum blossom groove punching technology carrying out that in advance the plum blossom groove in next step operation is fallen an interior angle, in order to avoid the plum blossom troughed belt spinosity limit of going out influences product quality; Concentrate for reducing screw stress; Make part damage easily and prevention screw head wedge angle damages the user of service, also need screw head is fallen a bull nose that processing the inside and outside chamfering of screw head at present is respectively through the turning processing; At first screw is fixed through special fixture; Then with the first outer chamfered part of processing screw head of lathe, the interior chamfered part of tool changing processing screw head again after outer chamfer machining is good, process so not only time-consuming, take material; Also increase processing cost, prolonged the production cycle of product simultaneously.
The utility model content
The utility model purpose is to provide a kind of simple in structure for the deficiency that overcomes prior art, can simultaneously inside and outside chamfering once be poured out and economical with materials the inside and outside chamfer mould of lower-cost coiled hair plum blossom groove self-tapping lock screw.
For achieving the above object, the technical scheme that the utility model adopts is: the inside and outside chamfer mould of a kind of coiled hair plum blossom groove self-tapping lock screw, comprise mobile mould, with the fixed die that mobile mould is used, said mobile mould bottom is provided with towards benevolence; Saidly adopt Hardmetal materials to process towards benevolence; Said outside benevolence bottom is provided with rounded corner shape chamber; Middle part, said outer rounded corner shape chamber is provided with and is conical boss; Be provided with bar portion shape chamber in the said fixed die.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The inside and outside chamfer mould of the coiled hair plum blossom groove self-tapping lock screw of the utility model scheme; Through in moving mould, be provided with have outer rounded corner shape chamber towards benevolence and outside middle part, chamfering shape chamber be provided with one and be conical boss, shank of screw is deployed in fixing tringle portion shape chamber, mobile mould drive is towards benevolence punching press screw head; Make the inside and outside chamfering one-shot forming on the screw head; Improve the quality of product, improved production efficiency, and can not produce any waste material.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Accompanying drawing 1 is the inside and outside chamfer mould structural representation of a kind of coiled hair self-tapping lock screw of the utility model;
Wherein: 1, move mould; 2, fixed die; 3, towards benevolence; 4, outer rounded corner shape chamber; 5, conical boss; 6, bar portion shape chamber; 7, product knock pin; 8, screw.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Accompanying drawing 1 is the inside and outside chamfer mould of the described a kind of coiled hair plum blossom groove self-tapping lock screw of the utility model, comprise move mould 1, with the fixed die 2 that mobile mould 1 is used, said mobile mould 1 bottom is provided with towards benevolence 3; Saidly adopt Hardmetal materials to process towards benevolence 3; Said outside benevolence 3 bottoms are provided with rounded corner shape chamber 4; 4 middle parts, said outer rounded corner shape chamber are provided with and are conical boss 5; Be provided with bar portion shape chamber 6 in the said fixed die 2.The bar portion of screw 8 puts into bar portion shape chamber 6, moves the head that mould 1 drives towards benevolence 3 punching press screws 8, pours out outer chamfering through outer rounded corner shape chamber 4; Conical boss 5 stamps out interior chamfering, thereby makes the inside and outside chamfering one-shot forming on screw 8 heads, has improved the quality of product; Improved production efficiency, and can not produce any waste material, after the completion of processing; Move on the mould 1 and move, use product knock pin 7 then screw.
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 (1)
1. the inside and outside chamfer mould of a coiled hair plum blossom groove self-tapping lock screw, comprise mobile mould, with the fixed die that mobile mould is used, it is characterized in that: said mobile mould bottom is provided with towards benevolence; Saidly adopt Hardmetal materials to process towards benevolence; Said outside benevolence bottom is provided with rounded corner shape chamber; Middle part, said outer rounded corner shape chamber is provided with and is conical boss; Be provided with bar portion shape chamber in the said fixed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116254 CN202606625U (en) | 2012-03-27 | 2012-03-27 | Die for inner and outer chamfers for pan head torx self-tapping locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116254 CN202606625U (en) | 2012-03-27 | 2012-03-27 | Die for inner and outer chamfers for pan head torx self-tapping locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202606625U true CN202606625U (en) | 2012-12-19 |
Family
ID=47340357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220116254 Expired - Fee Related CN202606625U (en) | 2012-03-27 | 2012-03-27 | Die for inner and outer chamfers for pan head torx self-tapping locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202606625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546981A (en) * | 2021-08-13 | 2021-10-26 | 常州市胜彪标准件模具有限公司 | Pipe joint machining process method |
-
2012
- 2012-03-27 CN CN 201220116254 patent/CN202606625U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546981A (en) * | 2021-08-13 | 2021-10-26 | 常州市胜彪标准件模具有限公司 | Pipe joint machining process method |
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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: 20121219 Termination date: 20150327 |
|
| EXPY | Termination of patent right or utility model |