CN102962307B - Hexagonal processing method and mould in socket cap screw - Google Patents

Hexagonal processing method and mould in socket cap screw Download PDF

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Publication number
CN102962307B
CN102962307B CN201210300200.XA CN201210300200A CN102962307B CN 102962307 B CN102962307 B CN 102962307B CN 201210300200 A CN201210300200 A CN 201210300200A CN 102962307 B CN102962307 B CN 102962307B
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Prior art keywords
die
hexagonal
cap screw
screw
punch
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CN201210300200.XA
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CN102962307A (en
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杨玖锡
张彦德
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Guizhou Aerospace Precision Products Co Ltd
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Guizhou Aerospace Precision Products Co Ltd
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Abstract

The invention discloses hexagonal processing method and mould in a kind of socket cap screw, this processing method adopts the technique of punching press to form the interior hexagonal of soket head cap screw, the mould used comprises die body and die shoe, die body is provided with die shank, there is circular hole inner chamber die body inside, the die shank end of described die body is provided with a dozen bars, and die body inner chamber is provided with interior hexagonal punch, and interior hexagonal punch is connected with die body by the screw be arranged in the screw hole of die body side; Die shoe top is provided with a boss.Owing to have employed technical scheme of the present invention, when processing hexagonal in this special socket cap screw, by extrusion die of the present invention, can change conventional upsetting processing method is process for stamping, make processing technology more simple and convenient, substantially increase production efficiency, product size and the required precision of the soket head cap screw simultaneously processed are obtained for guarantee, and the intensity of screw have also been obtained raising.

Description

Hexagonal processing method and mould in socket cap screw
Technical field
The present invention relates to a kind of screw processing method and mould, particularly relate to hexagonal processing method and mould in a kind of socket cap screw.
Background technology
A kind of soket head cap screw fastener products can be used in aerospace field, this product head is round, centre is the hexagon groove fallen in, because material is special and specification framework requires too high, the difficulty of processing of this soket head cap screw is very high, as adopted conventional upsetting processing technology, the dimensional accuracy of the product processed is difficult to reach requirement, and working (machining) efficiency is low, product is difficult to be delivered for use on time, too increases the production cost of enterprise.Therefore, in existing this socket cap screw, the processing method of hexagonal is undesirable.
Summary of the invention
The object of the invention is for overcoming the deficiencies in the prior art, hexagonal extrusion die in a kind of special socket cap screw being provided, processing hexagonal in soket head cap screw by this particular manufacturing craft, improve machining accuracy and production efficiency, reduce entreprise cost.
For realizing object of the present invention, hexagonal processing method in a kind of socket cap screw of the present invention, wherein, in processing column head soket head cap screw during hexagonal, use hexagonal extrusion die in a kind of special socket cap screw, its processing method comprises the following steps:
1) conventionally cut according to formed product size and expect and restraint out thread rod part;
2) workpiece obtained previous step carries out head upsetting process, and processes circular counter bore at head, obtains the woollen of soket head cap screw;
3) woollen of the soket head cap screw that previous step obtains by hexagonal extrusion die in special socket cap screw is utilized to stamp out interior hexagonal by stamping machine and shaping;
4) conventionally post-processed is carried out.
For realizing said method, present invention also offers hexagonal extrusion die in a kind of special socket cap screw, comprise die body and die shoe, die body is provided with die shank, there is circular hole inner chamber die body inside, and wherein, the die shank end of described die body is provided with a dozen bars, die body inner chamber is provided with interior hexagonal punch, and interior hexagonal punch is connected with die body by the screw be arranged in the screw hole of die body side; Described die shoe top is provided with a boss.
Further, hexagonal extrusion die in above-mentioned special socket cap screw, wherein, the material that described interior hexagonal punch uses is Cr12MoV.
Further, hexagonal extrusion die in above-mentioned special socket cap screw, wherein, described hexagonal punch is the structure of the hexagonal prism composition of the cylinder on top and bottom, hexagonal consistent size in the outline sectional dimension of hexagonal prism and the hex screw of processing.
Further, hexagonal extrusion die in above-mentioned special socket cap screw, wherein, described die body bottom is provided with a discharger, and described interior hexagonal punch passes from the center of discharger.
Further, hexagonal extrusion die in above-mentioned special socket cap screw, wherein, described discharger is the structure be bolted on die body.
Owing to have employed technical scheme of the present invention, when processing hexagonal in this special socket cap screw, by extrusion die of the present invention, can change conventional upsetting processing method is process for stamping, make processing technology more simple and convenient, substantially increase production efficiency, product size and the required precision of the soket head cap screw simultaneously processed are obtained for guarantee, and the intensity of screw have also been obtained raising.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the drawing in side sectional elevation of die body;
Fig. 3 is the front view of die body;
Fig. 4 is discharger schematic diagram;
Fig. 5 is interior hexagonal punch structure schematic diagram;
Fig. 6 is die shoe and boss structure schematic diagram;
Fig. 7 is die shoe and boss top view.
Description of reference numerals: 1-makes bar, 2-die body, 3-discharger, hexagonal punch in 4-, 5-die shoe, 6-die shank, 7-boss, 8-screw hole, 9-bolt.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
See Fig. 1, as can be seen from the figure, hexagonal extrusion die in the special socket cap screw of one of the present invention, comprise die body 2 and die shoe 5, die body 2 is provided with die shank 6, and die shank 6 end of described die body 2 is provided with a dozen bars 1, and die body 2 inner chamber is provided with interior hexagonal punch 4.See Fig. 2 and Fig. 3, interior hexagonal punch 4 is connected with die body 2 by the screw be arranged in the screw hole 8 of die body 2 side.See Fig. 6, Fig. 7, described die shoe 5 top is provided with a boss 7, and this boss 7 makes the woollen needing to stamp out interior hexagonal fix.
The material of the soket head cap screw extruded due to this mould is all generally high temperature alloy, stainless steel, titanium alloy etc materials, and be pre-processed circular counter bore before extrusion, this just require die-filling after to align up and down, to extruding in hexagonal punch material requirements impact and wearability good, therefore in hexagonal punch 4 use material be Cr12MoV.All the other mold materials only need 45 Steel materials by obtaining instructions for use after suitable heat treatment.
See Fig. 5, as we can see from the figure, hexagonal punch 4 be the structure that the hexagonal prism of the cylinder on top and bottom forms, and hexagonal consistent size in the size of hexagonal prism and the hex screw of processing, can ensure punching press interior hexagonal configuration precision out like this.
See Fig. 4, described die body 2 bottom is provided with a discharger 3, and interior hexagonal punch 4 can pass from the middle part of discharger 3.Discharger 3 is the structures be fixed on by bolt 9 on die body 2.
Embodiments of the invention: this mould is main body assembling by die body 2, interior hexagonal punch 4 is loaded die body 2 and utilizes the screw-driving in the screw hole 8 of die body 2 side, again the bolt 9 of discharger 3 one end is installed on die body 2, at die body 2 die shank 6 end dress upper rod-knocking 1, then forcing press is loaded onto, align upper and lower mould, mix up stroke and can complete die-filling program.During work, the idle running of starting pressure electromechanical source is after about 3 ~ 5 minutes, in forcing press up stroke, operator puts on the boss 7 on die shoe 5 by hand with the soket head cap screw woollen that tweezers will be processed, put after putting in place, along with stroke of a press down stroke, interior hexagonal punch 4 pairs of soket head cap screw woollens are squeezed into interior hexagonal along circular bottom outlet, simultaneously discharger 3 by die shoe stop mutually internally hexagonal punch 4 be moved upward, also will make bar 1 and up promote.Down stroke completes and by after extruded for hexagonal in soket head cap screw woollen head again, die body 2 starts toward up stroke work, because the screw machined is squeezed after power effect, also can wrap in the boss 7 interior hexagonal punch 4 up pulled out on die shoe 5 simultaneously, when after forcing press up stroke to terminal, due to die body 2 making bar 1 by the cross bar effect of forcing press, the down active force making bar 1 pair of discharger 3 makes the screw machined be pushed out interior hexagonal punch 4, and under the effect of the side air pressure that the screw machined installs while being pushed out on forcing press, the screw machined is blown in ready device, wholely machine one-period.Latter acts and working procedure thereof circulate conveniently processing method to entire block processes.
Certainly, more than just embody rule example of the present invention, the technical scheme that the present invention also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within protection domain of the presently claimed invention.

Claims (2)

1. a hexagonal processing method in socket cap screw, is characterized in that: in processing column head soket head cap screw during hexagonal, and use hexagonal extrusion die in a kind of special socket cap screw, its processing method comprises the following steps:
1) conventionally cut according to formed product size and expect and restraint out thread rod part;
2) workpiece obtained previous step carries out head upsetting process, and processes circular counter bore at head, obtains the woollen of soket head cap screw;
3) woollen of the soket head cap screw that previous step obtains by hexagonal extrusion die in special socket cap screw is utilized to stamp out interior hexagonal by stamping machine and shaping, during work, the idle running of starting pressure electromechanical source is after about 3 ~ 5 minutes, in forcing press up stroke, operator puts on the boss (7) on die shoe (5) by hand with the soket head cap screw woollen that tweezers will be processed, put after putting in place, along with stroke of a press down stroke, interior hexagonal punch (4) is squeezed into interior hexagonal to soket head cap screw woollen along circular bottom outlet, simultaneously discharger (3) by die shoe (5) stop mutually internally hexagonal punch (4) be moved upward, also will make bar (1) and up promote, down stroke completes and by after extruded for hexagonal in soket head cap screw woollen head, die body (2) starts toward up stroke work, because the screw machined is squeezed after power effect, also can wrap in the boss (7) interior hexagonal punch (4) up pulled out on die shoe (5) simultaneously, when after forcing press up stroke to terminal, beating the down active force of bar (1) to discharger (3) makes the screw machined be pushed out interior hexagonal punch (4), and under the effect of the side air pressure that the screw machined installs while being pushed out on forcing press, the screw machined is blown in ready device, wholely machine one-period,
4) conventionally post-processed is carried out.
2. hexagonal extrusion die in a special socket cap screw, comprise die body (2) and die shoe (5), die body (2) is provided with die shank (6), there is circular hole inner chamber die body (2) inside, die shank (6) end of described die body (2) is provided with a dozen bars (1), die body (2) inner chamber is provided with interior hexagonal punch (4), and interior hexagonal punch (4) is connected with die body (2) by the screw be arranged in the screw hole (8) of die body (2) side; Described die shoe (5) top is provided with a boss (7); It is characterized in that: described die body (2) bottom is provided with a discharger (3), described interior hexagonal punch (4) is passed from the center of discharger (3).
CN201210300200.XA 2012-08-22 2012-08-22 Hexagonal processing method and mould in socket cap screw Active CN102962307B (en)

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Publication number Priority date Publication date Assignee Title
CN103418713B (en) * 2013-08-01 2015-11-18 宁波市鄞州风名工业产品设计有限公司 Continuous composite punching die
CN103464587B (en) * 2013-08-30 2015-11-18 宁波江东唐通机电设备有限公司 Diel
CN103600011B (en) * 2013-08-30 2015-11-18 宁波江东唐通机电设备有限公司 Continuous composite punching die
CN103464586B (en) * 2013-08-30 2015-11-18 宁波江东唐通机电设备有限公司 A kind of diel
CN111571145B (en) * 2020-05-28 2021-06-22 珠海经济特区华凯工贸有限公司 Production and processing method of self-tapping screw

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CN102248117A (en) * 2011-05-31 2011-11-23 鹏驰五金制品有限公司 Tuning-free forming die for stop bolt
CN202270857U (en) * 2011-10-28 2012-06-13 贵州航天精工制造有限公司 Inner hexagon processing die of slotted bolt
CN102397935A (en) * 2011-12-05 2012-04-04 西安航天动力机械厂 Die for punching inner hexagonal hole of bolt

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