CN102601589A - Process for manufacturing quincuncial dowel screws - Google Patents
Process for manufacturing quincuncial dowel screws Download PDFInfo
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- CN102601589A CN102601589A CN2012100866147A CN201210086614A CN102601589A CN 102601589 A CN102601589 A CN 102601589A CN 2012100866147 A CN2012100866147 A CN 2012100866147A CN 201210086614 A CN201210086614 A CN 201210086614A CN 102601589 A CN102601589 A CN 102601589A
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Abstract
The invention discloses process for manufacturing quincuncial dowel screws. The process mainly includes steps: (1) cutting; (2), double chamfering; (3) preliminary heading and tail binding; (4) quincunx binding and forming; (5) thread rolling; (6) heat treatment; and (7) surface treatment. The process for manufacturing quincuncial dowel screws has the advantages that an integral processing procedure is divided into a plurality of working procedures, a blank is in cold heading processing to form a product, generated waste materials are avoided in the processing procedure, processing speed and efficiency are high, cost is effectively controlled, labor intensity of personnel is reduced, and the quality of the product can be reliably guaranteed.
Description
Technical field
The present invention relates to a kind of screw manufacturing process, relate in particular to a kind of blossom type dowel screw manufacturing process.
Background technology
Quincunx dowel screw is a kind of securing member that two different parts are linked together of being used for, and comprises double-screw bolt 1, tapping screw bar 2, is positioning boss 3 between double-screw bolt 1 and the tapping screw bar 2; Positioning boss 3 radial dimensions are greater than the diameter of double-screw bolt 1 with tapping screw bar 2; Double-screw bolt 1 other end is provided with quincunx tail 4, and the other end of tapping screw 2 is provided with rounded corner 5, at first tapping screw 2 is shot in the part; The double-screw bolt 1 that its other end exposes supplies the usefulness of other connectors; Positioning boss 3 is as the usefulness of location, measured length, and operation is very easy, quick, is widely used at present.Need adopt board manufacturing procedures such as lathe, milling machine, grinding, polishing and process this dowel screw at present; The machining period extra-high-speed, the processing loss material accounts for more than 105% of product ratio, causes processing cost very high; And the size of product, concentricity, brightness and chamfering are unstable; Differ bigger, scrappage accounts for more than 7%, has influenced the quality and the output of product.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: it is simple to have proposed a kind of manufacturing process, economical with materials and have the quincunx dowel screw manufacturing process that reliable quality guarantees.
Technical solution of the present invention is achieved in that a kind of quincunx dowel screw manufacturing process, and it mainly may further comprise the steps:
(1) blank: with the metal wire rod is raw material, according to volume after the formed product, and the workpiece that cutting ingot to length is met;
(2) two chamferings: the workpiece that obtains in the step (1) is put into the first station cold headers mould rounded corner processing is carried out at the two ends of workpiece;
(3) upset in advance and Beam End: the workpiece that obtains in the step (2) is put into the second station cold headers mould, the positioning boss of upsetting out in advance, and workpiece one end contracted extrude afterbody;
(4) Shu Meihua and moulding: the workpiece that obtains in the step (3) is put into the 3rd station cold headers mould, the workpiece afterbody is carried out Shu Meihua handle, the bar moulding of contracting of moulding positioning boss and whole workpiece;
(5) flat die thread rolling:, adopt thread rolling machine that positioning boss two side lever portions are carried out flat die thread rolling and handle to the workpiece that obtains in the step (4);
(6) heat treatment:, after quenching under 800～900 ℃ of temperature, be tempered to 250～200 ℃ with the workpiece that obtains in the step (5);
(7) surface treatment: the workpiece that obtains in the step (6) is carried out zinc-plated processing.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
Quincunx dowel screw manufacturing process of the present invention; The whole machining process process is divided into several operations, blank is adopted cold-heading machine-shaping product, do not produce any waste material in the process; Process velocity, efficient height; Control cost effectively, reduce personnel's labour intensity, and product quality can access reliable assurance.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Accompanying drawing 1 is the process chart of quincunx dowel screw manufacturing process of the present invention;
Wherein: 1, double-screw bolt; 2, tapping screw bar; 3, positioning boss; 4, quincunx tail; 5, rounded corner.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described.
Be depicted as a kind of quincunx dowel screw manufacturing process of the present invention like accompanying drawing 1, it mainly may further comprise the steps:
(1) blank: the solid cylinder that with the material is low-carbon martensitic steels is a raw material, and according to volume after the formed product, selecting diameter for use is 7mm, and length is cut to the workpiece A of 61mm;
(2) two chamferings: the workpiece A that obtains in the step (1) is put into the first station cold headers mould rounded corner processing is carried out at the two ends of workpiece, obtain workpiece B;
(3) upset in advance and Beam End: the workpiece B that obtains in the step (2) is put into the second station cold headers mould, the positioning boss of upsetting out in advance, and workpiece B one end contracted extrude afterbody, obtain workpiece C;
(4) Shu Meihua and moulding: the workpiece C that obtains in the step (3) is put into the 3rd station cold headers mould, the workpiece afterbody is carried out Shu Meihua handle, obtain quincunx tail, and moulding positioning boss 5 and to the bar moulding of contracting of workpiece C integral body;
(5) flat die thread rolling: to the workpiece C that obtains in the step (4), adopt thread rolling machine that the bar portion of moulding positioning boss 3 both sides is carried out the flat die thread rolling processing, obtain workpiece D;
(6) heat treatment:, be placed on and be tempered to 200 ℃ after quenching under 880 ℃ of temperature with the workpiece D that obtains in the step (5);
(7) surface treatment: the workpiece that obtains in the step (6) is carried out zinc-plated processing.
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. quincunx dowel screw manufacturing process, it is characterized in that: it mainly may further comprise the steps:
(1) blank: with the metal wire rod is raw material, according to volume after the formed product, and the workpiece that cutting ingot to length is met;
(2) two chamferings: the workpiece that obtains in the step (1) is put into the first station cold headers mould rounded corner processing is carried out at the two ends of workpiece;
(3) upset in advance and Beam End: the workpiece that obtains in the step (2) is put into the second station cold headers mould, the positioning boss of upsetting out in advance, and workpiece one end contracted extrude afterbody;
(4) Shu Meihua and moulding: the workpiece that obtains in the step (3) is put into the 3rd station cold headers mould, the workpiece afterbody is carried out Shu Meihua handle, the bar moulding of contracting of moulding positioning boss and whole workpiece;
(5) flat die thread rolling:, adopt thread rolling machine that positioning boss two side lever portions are carried out flat die thread rolling and handle to the workpiece that obtains in the step (4);
(6) heat treatment:, after quenching under 800～900 ℃ of temperature, be tempered to 250～200 ℃ with the workpiece that obtains in the step (5);
(7) surface treatment: the workpiece that obtains in the step (6) is carried out zinc-plated processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100866147A CN102601589A (en) | 2012-03-29 | 2012-03-29 | Process for manufacturing quincuncial dowel screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100866147A CN102601589A (en) | 2012-03-29 | 2012-03-29 | Process for manufacturing quincuncial dowel screws |
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| Publication Number | Publication Date |
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| CN102601589A true CN102601589A (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100866147A Pending CN102601589A (en) | 2012-03-29 | 2012-03-29 | Process for manufacturing quincuncial dowel screws |
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| CN (1) | CN102601589A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223572A (en) * | 2013-04-11 | 2013-07-31 | 漳州鑫一达五金电子有限公司 | Anchoring nail processing method |
| CN103909204A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Special-shaped stud cold heading device and cold heading process thereof |
| CN104476130A (en) * | 2014-11-24 | 2015-04-01 | 苏州市福迈精密机械有限公司 | Shaft pin machining technology |
| CN104923700A (en) * | 2015-05-06 | 2015-09-23 | 柳州金茂机械有限公司 | Pin machining technology |
| CN105291274A (en) * | 2015-11-20 | 2016-02-03 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology of ceramic screw and mold structure for stretching inner plum screw |
| CN105345475A (en) * | 2015-11-09 | 2016-02-24 | 瑞安市华诺五金制造有限公司 | Technology for machining bolts |
| CN105478650A (en) * | 2015-12-11 | 2016-04-13 | 中国航空工业标准件制造有限责任公司 | Method for thermally upsetting and forming flange plate bolt head |
| CN108374129A (en) * | 2018-03-19 | 2018-08-07 | 明光市瑞丰五金制品有限公司 | High intensity flooring nail material and its production technology |
| CN108598820A (en) * | 2018-05-14 | 2018-09-28 | 上海顺翼紧固件有限公司 | The production technology of plum blossom tooth adapter and its application inside and outside 12 jiaos a kind of |
| CN109108208A (en) * | 2018-06-30 | 2019-01-01 | 中国航空工业标准件制造有限责任公司 | A kind of plastic molding method of the interior hexagonal hole of slender rod piece |
| CN109386529A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of stud |
| CN109386530A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of special-shaped stud |
| CN109404399A (en) * | 2018-11-09 | 2019-03-01 | 宾科汽车紧固件（昆山）有限公司 | The molding machine and processing technology of special-shaped assembling bolt |
| CN110102684A (en) * | 2019-04-30 | 2019-08-09 | 温州科腾紧固件有限公司 | Square head bolt is without cutting pin moulding process |
-
2012
- 2012-03-29 CN CN2012100866147A patent/CN102601589A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909204A (en) * | 2012-12-29 | 2014-07-09 | 宾科汽车紧固件（昆山）有限公司 | Special-shaped stud cold heading device and cold heading process thereof |
| CN103223572A (en) * | 2013-04-11 | 2013-07-31 | 漳州鑫一达五金电子有限公司 | Anchoring nail processing method |
| CN104476130A (en) * | 2014-11-24 | 2015-04-01 | 苏州市福迈精密机械有限公司 | Shaft pin machining technology |
| CN104923700A (en) * | 2015-05-06 | 2015-09-23 | 柳州金茂机械有限公司 | Pin machining technology |
| CN105345475A (en) * | 2015-11-09 | 2016-02-24 | 瑞安市华诺五金制造有限公司 | Technology for machining bolts |
| CN105291274A (en) * | 2015-11-20 | 2016-02-03 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology of ceramic screw and mold structure for stretching inner plum screw |
| CN105478650A (en) * | 2015-12-11 | 2016-04-13 | 中国航空工业标准件制造有限责任公司 | Method for thermally upsetting and forming flange plate bolt head |
| CN108374129A (en) * | 2018-03-19 | 2018-08-07 | 明光市瑞丰五金制品有限公司 | High intensity flooring nail material and its production technology |
| CN108598820A (en) * | 2018-05-14 | 2018-09-28 | 上海顺翼紧固件有限公司 | The production technology of plum blossom tooth adapter and its application inside and outside 12 jiaos a kind of |
| CN108598820B (en) * | 2018-05-14 | 2024-01-02 | 上海顺翼紧固件有限公司 | Production process and application of 12-angle inner and outer quincuncial tooth adapter |
| CN109108208A (en) * | 2018-06-30 | 2019-01-01 | 中国航空工业标准件制造有限责任公司 | A kind of plastic molding method of the interior hexagonal hole of slender rod piece |
| CN109386529A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of stud |
| CN109386530A (en) * | 2018-11-09 | 2019-02-26 | 宾科汽车紧固件（昆山）有限公司 | The molding structure and forming method of special-shaped stud |
| CN109404399A (en) * | 2018-11-09 | 2019-03-01 | 宾科汽车紧固件（昆山）有限公司 | The molding machine and processing technology of special-shaped assembling bolt |
| CN109404399B (en) * | 2018-11-09 | 2023-09-22 | 宾科汽车紧固件（昆山）有限公司 | Forming device for special-shaped combined bolt |
| CN109386530B (en) * | 2018-11-09 | 2024-02-13 | 宾科汽车紧固件（昆山）有限公司 | Forming structure and forming method of special-shaped stud bolt |
| CN110102684A (en) * | 2019-04-30 | 2019-08-09 | 温州科腾紧固件有限公司 | Square head bolt is without cutting pin moulding process |
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Application publication date: 20120725 |