CN102601298A - Triangular self-tapping screw manufacturing process - Google Patents
Triangular self-tapping screw manufacturing process Download PDFInfo
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- CN102601298A CN102601298A CN2012100866132A CN201210086613A CN102601298A CN 102601298 A CN102601298 A CN 102601298A CN 2012100866132 A CN2012100866132 A CN 2012100866132A CN 201210086613 A CN201210086613 A CN 201210086613A CN 102601298 A CN102601298 A CN 102601298A
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- plum blossom
- tapping screw
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Abstract
The invention discloses a triangular self-tapping screw manufacturing process, which includes the steps: (1) cutting, (2) preliminary upsetting, (3) internal and external chamfering, (4) punching of plum blossom holes, (5) forming, (6) thread rolling and (7) heat treatment. By means of cold upsetting, a triangular self-tapping screw is integrally formed, replacement of various machines is omitted during manufacturing, manufacturing procedures are simple and clear, manufacturing speed is increased, production efficiency is improved, waste of materials during manufacturing is greatly decreased by means of integral manufacture, and cost is saved.
Description
Technical field
The present invention relates to a kind of manufacturing process, relate to a kind of trigonodont tapping screw manufacturing process specifically.
Background technology
The technology of existing production screw generally comprises blank, heat treatment, preliminary working, semifinishing, middle inspection, fine finishining, screw thread, picks up eventually; Need use different machines in the process and accomplish the moulding manufacturing of screw; Complex procedures bothers like this; Production efficiency reduces, and batch process speed is slow, can't well accomplish requirement of mass production; Simultaneously cause very big waste in process of production, material is reasonable use fully, has improved production cost.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: the trigonodont tapping screw manufacturing process of proposed that a kind of operation is simple, speed of production is fast, saving material.
Technical solution of the present invention is achieved in that a kind of trigonodont tapping screw manufacturing process, comprises following step:
(1) blank: put into cutting machine to workpiece, cut out the length that needs;
(2) upset in advance: put into the first counterdie die cavity to the workpiece that cuts,, upset into cylindrical head to workpiece one end through the first patrix punching press;
(3) inside and outside chamfering: put into the second counterdie die cavity to the workpiece that obtains in the step 2,, upset into oblate head to cylindrical head, simultaneously oblate head is carried out inside and outside chamfering through the second patrix punching press;
(4) towards plum blossom hole: put into the 3rd counterdie die cavity to the workpiece that obtains in the step 3, be provided with the plum blossom drift in the 3rd patrix,, on oblate head, go out plum blossom hole through the moving plum blossom drift of the 3rd upper punch pressure zone;
(5) moulding: put into the 4th counterdie die cavity to the workpiece that obtains in the step 4, the 4th counterdie die cavity cross section is triangular in shape shaft-like, through the 4th upper punch pressure handle workpiece in the part of the lower die moulding triangular in shape shaft-like;
(6) flat die thread rolling: be placed on flat die thread rolling on the gear rolling machine to the workpiece that obtains in the step 5;
(7) heat treatment: the workpiece that obtains in the step 6 is heat-treated.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
A kind of trigonodont tapping screw manufacturing process of the present invention, through the cold-heading technology, it is one-body molded that the trigonodont tapping screw is made; In process, need not change multiple machine; Manufacturing procedure is simple and clear, and process velocity improves, and production efficiency increases; Integrated manufacturing has reduced the waste of material in the process greatly, provides cost savings.
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 a kind of trigonodont tapping screw manufacturing process of the present invention;
Accompanying drawing 2 is the preparatory rammer die cut view of a kind of trigonodont tapping screw manufacturing process of the present invention;
Accompanying drawing 3 is the inside and outside chamfer mould cutaway view of a kind of trigonodont tapping screw manufacturing process of the present invention;
Accompanying drawing 4 dashes the plum blossom hole die cut view for a kind of trigonodont tapping screw manufacturing process of the present invention;
Accompanying drawing 5 is the mould cutaway view of a kind of trigonodont tapping screw manufacturing process of the present invention;
Wherein: 1, first patrix; 2, first counterdie; 3, second patrix; 4, second counterdie; 5, the 3rd patrix; 6, the 3rd counterdie; 7, plum blossom drift; 8, the 4th patrix; 9, the 4th counterdie.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described.
Be depicted as a kind of trigonodont tapping screw manufacturing process of the present invention like accompanying drawing 1～5, comprise following step:
(1) blank: put into cutting machine to workpiece, cut length 82.0mm, the bar of diameter 10.8mm;
(2) upset in advance: put into first counterdie, 2 die cavitys to the workpiece that cuts, through 1 punching press of first patrix, upset into cylindrical head to workpiece one end, wherein the diameter of cylindrical head is the head of ∮ 16.3mm, length 18mm, and bar minister degree is 57.5mm;
(3) inside and outside chamfering: put into second counterdie, 4 die cavitys to the workpiece that obtains in the step 2,, upset into oblate head to cylindrical head, simultaneously oblate head is carried out inside and outside chamfering through 3 punching presses of second patrix;
(4) towards plum blossom hole: put into the 3rd counterdie 6 die cavitys to the workpiece that obtains in the step 3, be provided with plum blossom drift 7 in the 3rd patrix 5, drive plum blossom drift 7, on oblate head, go out plum blossom hole through 5 punching presses of the 3rd patrix;
(5) moulding: put into the 4th counterdie 9 die cavitys to the workpiece that obtains in the step 4, the 4th counterdie 9 die cavity cross sections are triangular in shape shaft-like, through 8 punching presses of the 4th patrix workpiece in the part of the lower die moulding triangular in shape shaft-like;
(6) flat die thread rolling: be placed on flat die thread rolling on the gear rolling machine to the workpiece that obtains in the step 5;
(7) heat treatment: the workpiece that obtains in the step 6 is heat-treated.
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. trigonodont tapping screw manufacturing process is characterized in that comprising following step:
(1) blank: put into cutting machine to workpiece, cut out the length that needs;
(2) upset in advance: put into the first counterdie die cavity to the workpiece that cuts,, upset into cylindrical head to workpiece one end through the first patrix punching press;
(3) inside and outside chamfering: put into the second counterdie die cavity to the workpiece that obtains in the step 2,, upset into oblate head to cylindrical head, simultaneously oblate head is carried out inside and outside chamfering through the second patrix punching press;
(4) towards plum blossom hole: put into the 3rd counterdie die cavity to the workpiece that obtains in the step 3, be provided with the plum blossom drift in the 3rd patrix,, on oblate head, go out plum blossom hole through the moving plum blossom drift of the 3rd upper punch pressure zone;
(5) moulding: put into the 4th counterdie die cavity to the workpiece that obtains in the step 4, the 4th counterdie die cavity cross section is triangular in shape shaft-like, through the 4th upper punch pressure handle workpiece in the part of the lower die moulding triangular in shape shaft-like;
(6) flat die thread rolling: be placed on flat die thread rolling on the gear rolling machine to the workpiece that obtains in the step 5;
(7) heat treatment: the workpiece that obtains in the step 6 is heat-treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100866132A CN102601298A (en) | 2012-03-29 | 2012-03-29 | Triangular self-tapping screw manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100866132A CN102601298A (en) | 2012-03-29 | 2012-03-29 | Triangular self-tapping screw manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102601298A true CN102601298A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100866132A Pending CN102601298A (en) | 2012-03-29 | 2012-03-29 | Triangular self-tapping screw manufacturing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN102601298A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962809A (en) * | 2014-05-21 | 2014-08-06 | 贵州航锐航空精密零部件制造有限公司 | Manufacturing method for 17-4PH screw |
| CN106077418A (en) * | 2016-07-07 | 2016-11-09 | 深圳市欣天科技股份有限公司 | A kind of high accuracy self-locking tuning screw cold-heading processing method |
| CN112792513A (en) * | 2021-01-19 | 2021-05-14 | 上海奥达科股份有限公司 | Production process and device for double-chamfer straight-tooth press-fitting bolt |
-
2012
- 2012-03-29 CN CN2012100866132A patent/CN102601298A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962809A (en) * | 2014-05-21 | 2014-08-06 | 贵州航锐航空精密零部件制造有限公司 | Manufacturing method for 17-4PH screw |
| CN106077418A (en) * | 2016-07-07 | 2016-11-09 | 深圳市欣天科技股份有限公司 | A kind of high accuracy self-locking tuning screw cold-heading processing method |
| CN112792513A (en) * | 2021-01-19 | 2021-05-14 | 上海奥达科股份有限公司 | Production process and device for double-chamfer straight-tooth press-fitting bolt |
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| 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 |