CN202555742U - Thread rolling wheel with guide angle - Google Patents
Thread rolling wheel with guide angle Download PDFInfo
- Publication number
- CN202555742U CN202555742U CN2012201852912U CN201220185291U CN202555742U CN 202555742 U CN202555742 U CN 202555742U CN 2012201852912 U CN2012201852912 U CN 2012201852912U CN 201220185291 U CN201220185291 U CN 201220185291U CN 202555742 U CN202555742 U CN 202555742U
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- CN
- China
- Prior art keywords
- guide angle
- tooth
- rolling wheel
- cylindrical die
- die roll
- Prior art date
- 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.)
- Expired - Fee Related
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to a thread rolling wheel with a guide angle, which comprises a thread rolling wheel body (1) with the guide angle and a center hole (2). The edge of the center hole (2) is provided with a key slot (3); the section of the thread rolling wheel body (1) with the guide angle is of a circular ring shape; the outer surface of the thread rolling wheel body (1) with the guide angle is provided with tooth grains (4); at least two tooth grains (4) are provided; each tooth grain (4) is a straight grain; each tooth grain (4) is arranged along the direction vertical to the axial direction of the center hole (2); each tooth gain (4) comprises a tooth top (5) and a tooth root (6); and the guide angle alpha is formed between the straight lines on which a plurality of tooth tops (5) and a plurality of tooth roots (6) are positioned. The thread rolling wheel with the guide angle, which is provided by the utility model, has gradually increased tooth depths and has a certain guide angle, so that a rolled screw has high strength and high quality and is difficult to break.
Description
(1) technical field
The utility model relates to a kind of cylindrical die roll, relates in particular to a kind of 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 the processing high-strength bolt.At present the depth of threat of cylindrical die roll is consistent, and promptly crest is identical to the degree of depth of root of the tooth, and so the intensity of the screw rod that comes out of nip drum is not high, ruptures easily.
(3) summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, and providing a kind of has guide angle, depth of threat to become the big cylindrical die roll that contains guide angle gradually.
The purpose of the utility model is achieved in that
A kind of cylindrical die roll that contains guide angle; Comprise the cylindrical die roll body and the centre bore that contain guide angle, said centre bore edge is provided with keyway, and the said cross section of containing the cylindrical die roll body of guide angle is annular; The said outer surface that contains the cylindrical die roll body of guide angle is provided with the tooth line; Said tooth line has two at least, and said each tooth line is straight burr, and said each tooth line is arranged along the axial direction perpendicular to centre bore; Said each tooth line is divided into crest and root of the tooth, has guide angle α between the straight line at said a plurality of crests and a plurality of root of the tooth place.
The utility model contains the cylindrical die roll of guide angle, and the said material that contains the cylindrical die roll body of guide angle adopts medium carbon steel.
Compared with prior art, the beneficial effect of the utility model is:
The depth of threat that the utility model contains the cylindrical die roll of guide angle becomes greatly gradually, and certain guide angle is arranged, and makes the intensity of the screw rod that nip drum comes out high, quality is good, is not easy fracture.
(4) description of drawings
Fig. 1 contains the vertical section structure sketch map of the cylindrical die roll of guide angle for the utility model.
Fig. 2 contains the cross section cutaway view of the cylindrical die roll of guide angle for the utility model.
Fig. 3 is the structural representation of screw thread.
Wherein:
The cylindrical die roll body 1 that contains guide angle
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 utility model contains the cylindrical die roll of guide angle, comprises the cylindrical die roll body 1 and centre bore 2 that contain guide angle, and said centre bore 2 edges are provided with keyway 3; The said material that contains the cylindrical die roll body 1 of guide angle adopts medium carbon steel; The said cross section of containing the cylindrical die roll body 1 of guide angle is annular, and the said outer surface that contains the cylindrical die roll body 1 of guide angle is provided with tooth line 4, and said tooth line 4 has two at least; Said tooth line 4 is straight burr; Said each tooth line 4 arranges that along the axial direction perpendicular to centre bore 2 said each tooth line 4 is divided into crest 5 and root of the tooth 6, has guide angle α between the straight line at said a plurality of crests 5 and a plurality of root of the tooth 6 places.
The depth of threat that the utility model contains the cylindrical die roll of guide angle becomes greatly gradually, and certain guide angle is arranged, and makes the intensity of the screw rod that nip drum comes out high, quality is good, is not easy fracture.
Claims (2)
1. cylindrical die roll that contains guide angle; Comprise the cylindrical die roll body (1) and the centre bore (2) that contain guide angle, said centre bore (2) edge is provided with keyway (3), and the said cross section of containing the cylindrical die roll body (1) of guide angle is annular; The said outer surface that contains the cylindrical die roll body (1) of guide angle is provided with tooth line (4); Said tooth line (4) has two at least, and said each tooth line (4) is straight burr, and said each tooth line (4) is arranged along the axial direction perpendicular to centre bore (2); Said each tooth line (4) is divided into crest (5) and root of the tooth (6), it is characterized in that: have guide angle α between the straight line at said a plurality of crests (5) and a plurality of root of the tooth (6) place.
2. a kind of cylindrical die roll that contains guide angle according to claim 1 is characterized in that: the said material that contains the cylindrical die roll body (1) of guide angle adopts medium carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201852912U CN202555742U (en) | 2012-04-18 | 2012-04-18 | Thread rolling wheel with guide angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201852912U CN202555742U (en) | 2012-04-18 | 2012-04-18 | Thread rolling wheel with guide angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202555742U true CN202555742U (en) | 2012-11-28 |
Family
ID=47205446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201852912U Expired - Fee Related CN202555742U (en) | 2012-04-18 | 2012-04-18 | Thread rolling wheel with guide angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202555742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486519A (en) * | 2016-06-12 | 2017-12-19 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of short ending cylindrical die roll |
-
2012
- 2012-04-18 CN CN2012201852912U patent/CN202555742U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486519A (en) * | 2016-06-12 | 2017-12-19 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of short ending cylindrical die roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130418 |