CN103418716A - Inclined-grain thread rolling wheel with guide angle - Google Patents
Inclined-grain thread rolling wheel with guide angle Download PDFInfo
- Publication number
- CN103418716A CN103418716A CN2012101667314A CN201210166731A CN103418716A CN 103418716 A CN103418716 A CN 103418716A CN 2012101667314 A CN2012101667314 A CN 2012101667314A CN 201210166731 A CN201210166731 A CN 201210166731A CN 103418716 A CN103418716 A CN 103418716A
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- China
- Prior art keywords
- tooth
- guide angle
- cylindrical die
- die roll
- rolling wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to an inclined-grain thread rolling wheel with a guide angle. The wheel comprises a thread rolling wheel body (1) and a central hole (2). A key groove (3) is formed in the edge of the central hole (2). The section of the thread rolling wheel body (1) is annular, at least two tooth grains (4) are arranged on the outer surface of the thread rolling wheel body (1), each tooth grain (4) is an inclined grain and arranged in the axial direction perpendicular to the central hole (2), each tooth grain (4) is divided into a tooth top (5) and a tooth root (6), and the guide angle alpha is formed between straight lines of the plurality of tooth tops (5) and the plurality of tooth roots (6). The tooth depth of the inclined-grain thread rolling wheel becomes larger gradually, and the certain guide angle is formed, so that a rolled screw is high in strength, good in quality and not easy to break.
Description
(1) technical field
The present invention relates to a kind of cylindrical die roll, relate in particular to a kind of twill cylindrical die roll that contains guide angle.
(2) background technology
Cylindrical die roll is on screw-rolling machine, to utilize the method for metal plastic deformation to roll out a kind of instrument of screw thread, is applicable to process high-strength bolt.The depth of threat of cylindrical die roll is consistent at present, and crest is identical to the degree of depth of root of the tooth, and so the intensity of nip drum screw rod out is not high, easily fracture.
(3) summary of the invention
The object of the invention is to overcome above-mentioned deficiency, providing a kind of has guide angle, depth of threat to become gradually the large twill cylindrical die roll that contains guide angle.
The object of the present invention is achieved like this:
A kind of twill cylindrical die roll that contains guide angle, comprise cylindrical die roll body and centre bore, described centre bore edge is provided with keyway, the cross section of described cylindrical die roll body is annular, and the outer surface of described cylindrical die roll body is provided with the tooth line, and described tooth line has two at least, described each tooth line is twill, described each tooth line is along the layout of the axial direction perpendicular to centre bore, and described each tooth line is divided into crest and root of the tooth, between the straight line at described a plurality of crests and a plurality of roots of the tooth place, has guide angle α.
The twill cylindrical die roll that the present invention contains guide angle, the material of described cylindrical die roll body adopts medium carbon steel.
Compared with prior art, the invention has the beneficial effects as follows:
The depth of threat of the twill cylindrical die roll that the present invention contains guide angle becomes greatly gradually, and certain guide angle is arranged, and makes the intensity of nip drum screw rod out high, quality good, is not easy fracture.
(4) accompanying drawing explanation
The vertical section structure schematic diagram that Fig. 1 is the present invention's twill cylindrical die roll of containing guide angle.
The cross section cutaway view that Fig. 2 is the present invention's twill cylindrical die roll of containing guide angle.
The structural representation that Fig. 3 is screw thread.
Wherein:
Cylindrical die roll body 1
Centre bore 2
Keyway 3
Tooth line 4
Crest 5
Root of the tooth 6.
(5) specific embodiment
Referring to Fig. 1～Fig. 3, the twill cylindrical die roll that the present invention contains guide angle, comprise cylindrical die roll body 1 and centre bore 2, described centre bore 2 edges are provided with keyway 3, the material of described cylindrical die roll body 1 adopts medium carbon steel, the cross section of described cylindrical die roll body 1 is annular, the outer surface of described cylindrical die roll body 1 is provided with tooth line 4, described tooth line 4 has two at least, described tooth line 4 is twill, described each tooth line 4 is arranged along the axial direction perpendicular to centre bore 2, described each tooth line 4 is divided into crest 5 and root of the tooth 6, there is guide angle α between the straight line at described a plurality of crest 5 and a plurality of root of the tooth 6 places.
The depth of threat of the twill cylindrical die roll that the present invention contains guide angle becomes greatly gradually, and certain guide angle is arranged, and makes the intensity of nip drum screw rod out high, quality good, is not easy fracture.
Claims (2)
1. a twill cylindrical die roll that contains guide angle, comprise cylindrical die roll body (1) and centre bore (2), described centre bore (2) edge is provided with keyway (3), the cross section of described cylindrical die roll body (1) is annular, the outer surface of described cylindrical die roll body (1) is provided with tooth line (4), described tooth line (4) has two at least, described each tooth line (4) is twill, described each tooth line (4) is arranged along the axial direction perpendicular to centre bore (2), described each tooth line (4) is divided into crest (5) and root of the tooth (6), it is characterized in that: between the straight line at described a plurality of crests (5) and a plurality of root of the tooth (6) place, have guide angle α.
2. a kind of twill cylindrical die roll that contains guide angle according to claim 1, is characterized in that: the material employing medium carbon steel of described cylindrical die roll body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101667314A CN103418716A (en) | 2012-05-16 | 2012-05-16 | Inclined-grain thread rolling wheel with guide angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101667314A CN103418716A (en) | 2012-05-16 | 2012-05-16 | Inclined-grain thread rolling wheel with guide angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103418716A true CN103418716A (en) | 2013-12-04 |
Family
ID=49644384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101667314A Pending CN103418716A (en) | 2012-05-16 | 2012-05-16 | Inclined-grain thread rolling wheel with guide angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103418716A (en) |
-
2012
- 2012-05-16 CN CN2012101667314A patent/CN103418716A/en active Pending
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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: 20131204 |