CN102601212A - Internal and external chamfering die for pan head torx self-tapping locking screw - Google Patents
Internal and external chamfering die for pan head torx self-tapping locking screw Download PDFInfo
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- CN102601212A CN102601212A CN2012100823071A CN201210082307A CN102601212A CN 102601212 A CN102601212 A CN 102601212A CN 2012100823071 A CN2012100823071 A CN 2012100823071A CN 201210082307 A CN201210082307 A CN 201210082307A CN 102601212 A CN102601212 A CN 102601212A
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- die
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- punching
- kernel
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Abstract
The invention discloses an internal and external chamfering die for a pan head torx self-tapping locking screw. The internal and external chamfering die comprises a moveable die, and a fixed die which is used by combining with the moveable die. A punching kernel is arranged at the bottom of the moveable die. The punching kernel is made of hard alloy materials. An outer cylindrical chamfering cavity is arranged at the bottom of the punching kernel. A cone-shaped bump is arranged in the middle of the outer cylindrical chamfering cavity. A rod part cavity is arranged inside the fixed die. In the scheme of the invention, the moveable die drives the punching kernel to punch the head of a screw by arranging the punching kernel with the outer cylindrical chamfering cavity in the moveable die and the cone-shaped bump in the middle of the outer cylindrical chamfering cavity as well as a screw rod part arranged in the rod part cavity of the fixed die, so that the internal and external chamfers at the head of the screw are formed integrally, thereby improving the quality of the product and enhancing the production efficiency without generating any waste.
Description
Technical field
The present invention relates to a kind of mould, relate 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.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind of simple in structurely, can simultaneously inside and outside chamfering once have been poured out and economical with materials, the inside and outside chamfer mould of lower-cost coiled hair plum blossom groove self-tapping lock screw.
Technical solution of the present invention is achieved in that 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 present invention compared with prior art has advantage:
The inside and outside chamfer mould of coiled hair plum blossom groove self-tapping lock screw of the present invention; 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 technical scheme of the present invention 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 present invention;
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 the present invention is described.
Accompanying drawing 1 is the inside and outside chamfer mould of a kind of coiled hair plum blossom groove self-tapping lock screw of the present invention, 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.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
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 |
|---|---|---|---|
| CN2012100823071A CN102601212A (en) | 2012-03-27 | 2012-03-27 | Internal and external chamfering die for pan head torx self-tapping locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100823071A CN102601212A (en) | 2012-03-27 | 2012-03-27 | Internal and external chamfering die for pan head torx self-tapping locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102601212A true CN102601212A (en) | 2012-07-25 |
Family
ID=46519195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100823071A Pending CN102601212A (en) | 2012-03-27 | 2012-03-27 | Internal and external chamfering die for pan head torx self-tapping locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102601212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599985A (en) * | 2013-11-14 | 2014-02-26 | 桂林福达全州高强度螺栓有限公司 | Bar chamfering and punching device during bolt processing |
-
2012
- 2012-03-27 CN CN2012100823071A patent/CN102601212A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599985A (en) * | 2013-11-14 | 2014-02-26 | 桂林福达全州高强度螺栓有限公司 | Bar chamfering and punching device during bolt processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |