CN102962307A - Method for machining inner hexagon of hexagonal socket head cap screw and die - Google Patents

Method for machining inner hexagon of hexagonal socket head cap screw and die Download PDF

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Publication number
CN102962307A
CN102962307A CN201210300200XA CN201210300200A CN102962307A CN 102962307 A CN102962307 A CN 102962307A CN 201210300200X A CN201210300200X A CN 201210300200XA CN 201210300200 A CN201210300200 A CN 201210300200A CN 102962307 A CN102962307 A CN 102962307A
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China
Prior art keywords
die
hexagonal
cap screw
screw
special
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CN201210300200XA
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CN102962307B (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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Priority to CN201210300200.XA priority Critical patent/CN102962307B/en
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Abstract

The invention discloses a method for machining an inner hexagon of a hexagonal socket head cap screw and a die. The method is used for machining the inner hexagon of an inner hexagonal screw by utilizing a stamping process. The die utilized by the method comprises a die body and a lower die seat, wherein the die body is provided with a die handle, a circular hole inner cavity is arranged in the die body, a striking rod is arranged at a die-handle end of the die body, and an inner hexagonal male die is arranged in a die body inner cavity and is connected with the die body through a screw in a screw hole in the side surface of the die body; and a boss is arranged at the top of the lower die seat. Through the technical scheme of the invention, when the inner hexagon special for the hexagonal socket head cap screw is machined, the conventional rammer machining method can be changed to be a stamping method through an extrusion die disclosed by the invention so that a machining process is simpler and more convenient, and the production efficiency is largely improved; and meanwhile, according to the method for machining the inner hexagon of the hexagonal socket head cap screw, disclosed by the invention, the sizes and precision of the machined inner hexagonal screws are ensured and the strength of the machined inner hexagonal screws is also improved.

Description

Hexagonal processing method and mould in the 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
Can use a kind of soket head cap screw fastener products in the aerospace field, this product head is round, the centre is the hexagon groove that falls in, because material is special and the specification framework requirement is too high, the difficulty of processing of this soket head cap screw is very high, as adopts conventional upsetting processing technology processed, the dimensional accuracy of the product that processes is difficult to reach requirement, and working (machining) efficiency is low, and product is difficult to be delivered for use on time, has also increased the production cost of enterprise.Therefore, the processing method of hexagonal is undesirable in the existing this socket cap screw.
Summary of the invention
The objective of the invention is for overcoming the deficiencies in the prior art, hexagonal extrusion die in a kind of special-purpose socket cap screw is provided, the interior hexagonal by this particular manufacturing craft is processed soket head cap screw improves machining accuracy and production efficiency, reduces entreprise cost.
For realizing purpose 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-purpose socket cap screw, its processing method may further comprise the steps:
1) cuts material and restraint out thread rod part according to the formed product size according to conventional method;
2) workpiece that previous step is obtained carries out head upsetting system to be processed, and processes circular counter bore at head, obtains the woolen cloth of soket head cap screw;
3) utilize the woolen cloth of the soket head cap screw that hexagonal extrusion die in the special-purpose socket cap screw obtains previous step to stamp out interior hexagonal and moulding by stamping machine;
4) carry out post-processed according to conventional method.
For realizing said method, the present invention also provides hexagonal extrusion die in a kind of special-purpose socket cap screw, comprise die body and die shoe, die body is provided with die shank, there is the circular hole inner chamber die body inside, and wherein, the die shank end of described die body is provided with a dozen bars, the die body inner chamber is provided with interior hexagonal punch, and interior hexagonal punch is connected with die body by the screw in the screw hole that is arranged on the die body side; Described die shoe top is provided with a boss.
Further, hexagonal extrusion die in the above-mentioned special-purpose socket cap screw, wherein, the material that described interior hexagonal punch uses is Cr12MoV.
Further, hexagonal extrusion die in the above-mentioned special-purpose socket cap screw, wherein, the structure that the cylinder that described hexagonal punch is top and the hexagonal prism of bottom form, hexagonal consistent size in the outline sectional dimension of hexagonal prism and the hex screw of processing.
Further, hexagonal extrusion die in the above-mentioned special-purpose 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 the above-mentioned special-purpose socket cap screw, wherein, described discharger is the structure that is bolted on the die body.
Owing to adopted technical scheme of the present invention, when processing the interior hexagonal of this special-purpose 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, greatly improved production efficiency, product size and the required precision of the soket head cap screw that processes simultaneously all are guaranteed, and the intensity of screw also is improved.
Description of drawings
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 the 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, hexagonal punch in the 3-discharger, 4-, 5-die shoe, 6-die shank, 7-boss, 8-screw hole, 9-bolt.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
See Fig. 1, as can be seen from the figure, hexagonal extrusion die in a kind of special-purpose socket cap screw of the present invention comprises die body 2 and die shoe 5, and die body 2 is provided with die shank 6, and die shank 6 ends of described die body 2 are provided with a dozen bars 1, and die body 2 inner chambers are 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 in the screw hole 8 that is arranged on die body 2 sides.See Fig. 6, Fig. 7, described die shoe 5 tops are provided with a boss 7, and this boss 7 can be fixed the woolen cloth that need to stamp out interior hexagonal.
Because the material of the soket head cap screw that this mould pushes generally all is high temperature alloy, stainless steel, titanium alloy etc materials, and be pre-processed circular counter bore before extruding, this will align up and down after just requiring to fill mould, interior hexagonal punch material requirements impact and wearability to extruding are good, and the material that therefore interior hexagonal punch 4 uses is Cr12MoV.All the other mold materials can obtain instructions for use after only needing 45 Steel materials by suitable heat treatment.
See Fig. 5, as we can see from the figure in hexagonal punch 4 be the structure that the hexagonal prism of the cylinder on top and bottom forms, the interior hexagonal consistent size of the size of hexagonal prism and the hex screw of processing can guarantee punching press interior hexagonal configuration precision out like this.
See Fig. 4, described die body 2 bottoms are provided with a discharger 3, and interior hexagonal punch 4 can pass from the middle part of discharger 3.Discharger 3 is to be fixed on structure on the die body 2 by bolt 9.
Embodiments of the invention: this mould is the main body assembling by die body 2, with pack into die body 2 and utilize screw-driving in the screw hole 8 of die body 2 sides of interior hexagonal punch 4, bolt 9 with discharger 3 one ends installs at die body 2 again, at die body 2 die shanks 6 ends dress upper rod-knocking 1, then load onto forcing press, align upper and lower mould, mix up stroke and can finish dress mold process order.The idle running of starting pressure electromechanical source is after about 3 ~ 5 minutes during work, in the forcing press up stroke, the soket head cap screw woolen cloth that the operator will process with tweezers is by hand put on the boss 7 on the die shoe 5, put put in place after, along with stroke of a press down stroke, beat bar 1 transmission of pressure to interior hexagonal punch 4,4 pairs of soket head cap screw woolen cloths of interior hexagonal punch are squeezed into interior hexagonal along circular bottom outlet, what simultaneously discharger 3 was subjected to die shoe stops that mutually internally hexagonal punch 4 is moved upward, and also will make bar 1 and up promote.Down stroke is finished and with after the hexagonal extrusion modling in the woollen head of soket head cap screw again, die body 2 beginnings are toward up stroke work, because the screw that machines is squeezed after the power effect, also can wrap in simultaneously the boss 7 of up pulling out on the interior hexagonal punch 4 on the die shoe 5, when the forcing press up stroke behind terminal point, owing to make bar 1 by the cross bar effect of forcing press on the die body 2, beat the down active force of 1 pair of discharger 3 of bar so that the screw that machines is pushed out interior hexagonal punch 4, and the screw that machines blows to the screw that machines in the ready device the whole one-period that machines when being pushed out under the effect of the side air pressure that forcing press installs.Till back operation and working procedure circulation thereof process according to conventional machining method to entire block.
Certainly, more than be concrete exemplary applications of the present invention, the present invention also has other embodiment, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the protection domain of the presently claimed invention.

Claims (6)

1. hexagonal processing method in the socket cap screw is characterized in that: during hexagonal, use hexagonal extrusion die in a kind of special-purpose socket cap screw in processing column head soket head cap screw, its processing method may further comprise the steps:
1) cuts material and restraint out thread rod part according to the formed product size according to conventional method;
2) workpiece that previous step is obtained carries out head upsetting system to be processed, and processes circular counter bore at head, obtains the woolen cloth of soket head cap screw;
3) utilize the woolen cloth of the soket head cap screw that hexagonal extrusion die in the special-purpose socket cap screw obtains previous step to stamp out interior hexagonal and moulding by stamping machine;
4) carry out post-processed according to conventional method.
2. hexagonal extrusion die in the special-purpose socket cap screw, comprise die body (2) and die shoe (5), die body (2) is provided with die shank (6), there is the circular hole inner chamber die body (2) inside, it is characterized in that: 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 in the screw hole (8) that is arranged on die body (2) side; Described die shoe (5) top is provided with a boss (7).
3. hexagonal extrusion die in the special-purpose socket cap screw according to claim 2, it is characterized in that: the material that described interior hexagonal punch (4) uses is Cr12MoV.
4. hexagonal extrusion die in the special-purpose socket cap screw according to claim 3, it is characterized in that: described hexagonal punch (4) 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.
5. hexagonal extrusion die in the special-purpose socket cap screw according to claim 3, it is characterized in that: described die body (2) bottom is provided with a discharger (3), and described interior hexagonal punch (4) passes from the center of discharger (3).
6. hexagonal extrusion die in the special-purpose socket cap screw according to claim 5 is characterized in that: described discharger (3) is to be fixed on structure on the die body (2) by bolt (9).
CN201210300200.XA 2012-08-22 2012-08-22 Hexagonal processing method and mould in socket cap screw Active CN102962307B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210300200.XA CN102962307B (en) 2012-08-22 2012-08-22 Hexagonal processing method and mould in socket cap screw

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Application Number Priority Date Filing Date Title
CN201210300200.XA CN102962307B (en) 2012-08-22 2012-08-22 Hexagonal processing method and mould in socket cap screw

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CN102962307A true CN102962307A (en) 2013-03-13
CN102962307B CN102962307B (en) 2016-01-13

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103418713A (en) * 2013-08-01 2013-12-04 宁波市鄞州风名工业产品设计有限公司 Continuous composite stamping die
CN103464587A (en) * 2013-08-30 2013-12-25 宁波市鄞州风名工业产品设计有限公司 Stamping die
CN103464586A (en) * 2013-08-30 2013-12-25 宁波市鄞州风名工业产品设计有限公司 Punching die
CN103600011A (en) * 2013-08-30 2014-02-26 宁波市鄞州风名工业产品设计有限公司 Continuous composite stamping die
CN111571145A (en) * 2020-05-28 2020-08-25 绍兴集知汇信息科技有限公司 Production and processing method of self-tapping screw

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Publication number Priority date Publication date Assignee Title
CN103418713A (en) * 2013-08-01 2013-12-04 宁波市鄞州风名工业产品设计有限公司 Continuous composite stamping die
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
CN103464586A (en) * 2013-08-30 2013-12-25 宁波市鄞州风名工业产品设计有限公司 Punching die
CN103600011A (en) * 2013-08-30 2014-02-26 宁波市鄞州风名工业产品设计有限公司 Continuous composite stamping die
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
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CN103464587B (en) * 2013-08-30 2015-11-18 宁波江东唐通机电设备有限公司 Diel
CN103464587A (en) * 2013-08-30 2013-12-25 宁波市鄞州风名工业产品设计有限公司 Stamping die
CN111571145A (en) * 2020-05-28 2020-08-25 绍兴集知汇信息科技有限公司 Production and processing method of self-tapping screw
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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