CN103372619A - Cylindrical die roll with guide angles - Google Patents
Cylindrical die roll with guide angles Download PDFInfo
- Publication number
- CN103372619A CN103372619A CN 201210133280 CN201210133280A CN103372619A CN 103372619 A CN103372619 A CN 103372619A CN 201210133280 CN201210133280 CN 201210133280 CN 201210133280 A CN201210133280 A CN 201210133280A CN 103372619 A CN103372619 A CN 103372619A
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- CN
- China
- Prior art keywords
- cylindrical die
- die roll
- guide angle
- roll body
- tooth
- 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.)
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a cylindrical die roll with guide angles. The cylindrical die roll comprises a cylindrical die roll body (1) with the guide angles and a center hole (2), a key groove (3) is formed in the edge of the center hole (2), the section of the cylindrical die roll body (1) with the guide angles is annular, at least two straight screw threads (4) are arranged on the outer surface of the cylindrical die roll body (1) with the guide angles along an axial direction perpendicular to the center hole (2), each screw thread (4) includes a crest (5) and a root (6), and the guide angle alpha is formed between a straight line where a plurality of crests (5) lie and a straight line where a plurality of roots (6) lie. The thread depth of the cylindrical die roll with the certain guide angles is gradually increased, so that a rolled screw rod is high in strength, fine 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 cylindrical die roll that contains guide angle.
(2) background technology
Cylindrical die roll is to utilize the method for metal plastic deformation to roll out a kind of instrument of screw thread at screw-rolling machine, is applicable to process high-strength bolt.The depth of threat of cylindrical die roll is consistent at present, and namely 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 cylindrical die roll that contains guide angle.
The object of the present invention is achieved like this:
A kind of cylindrical die roll that contains guide angle, comprise the cylindrical die roll body and the centre bore that contain guide angle, described centre bore edge is provided with keyway, the described cross section of containing the cylindrical die roll body of guide angle is annular, the described outer surface that contains the cylindrical die roll body of guide angle is provided with the tooth line, described tooth line has two at least, described each tooth line is straight burr, described each tooth line is arranged along the axial direction perpendicular to centre bore, described each tooth line is divided into crest and root of the tooth, has guide angle α between the straight line at described a plurality of crests and a plurality of roots of the tooth place.
The present invention contains the cylindrical die roll of guide angle, and the described material that contains the cylindrical die roll body of guide angle adopts medium carbon steel.
Compared with prior art, the invention has the beneficial effects as follows:
The depth of threat that the present invention contains the cylindrical die roll of guide angle becomes greatly gradually, and certain guide angle is arranged, and makes intensity height, the quality of nip drum screw rod out good, is not easy fracture.
(4) description of drawings
Fig. 1 is the vertical section structure schematic diagram of the present invention's cylindrical die roll of containing guide angle.
Fig. 2 is the cross section cutaway view of the present invention's cylindrical die roll of containing guide angle.
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 present invention contains the cylindrical die roll of guide angle, comprise the cylindrical die roll body 1 and the centre bore 2 that contain guide angle, described centre bore 2 edges are provided with keyway 3, the described material that contains the cylindrical die roll body 1 of guide angle adopts medium carbon steel, the described cross section of containing the cylindrical die roll body 1 of guide angle is annular, the described outer surface that contains the cylindrical die roll body 1 of guide angle is provided with tooth line 4, described tooth line 4 has two at least, described tooth line 4 is straight burr, described each tooth line 4 arranges that 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, has guide angle α between the straight line at described a plurality of crests 5 and a plurality of root of the tooth 6 places.
The depth of threat that the present invention contains the cylindrical die roll of guide angle becomes greatly gradually, and certain guide angle is arranged, and makes intensity height, the quality of nip drum screw rod out 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, described centre bore (2) edge is provided with keyway (3), the described cross section of containing the cylindrical die roll body (1) of guide angle is annular, the described outer surface that contains the cylindrical die roll body (1) of guide angle is provided with tooth line (4), described tooth line (4) has two at least, described each tooth line (4) is straight burr, 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: have guide angle α between the straight line at described 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 described material employing medium carbon steel that contains the cylindrical die roll body (1) of guide angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210133280 CN103372619A (en) | 2012-04-18 | 2012-04-18 | Cylindrical die roll with guide angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210133280 CN103372619A (en) | 2012-04-18 | 2012-04-18 | Cylindrical die roll with guide angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103372619A true CN103372619A (en) | 2013-10-30 |
Family
ID=49458809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210133280 Pending CN103372619A (en) | 2012-04-18 | 2012-04-18 | Cylindrical die roll with guide angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103372619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716670A (en) * | 2017-11-01 | 2018-02-23 | 山东理工大学 | A kind of multi-pass increment rolling forming process |
-
2012
- 2012-04-18 CN CN 201210133280 patent/CN103372619A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716670A (en) * | 2017-11-01 | 2018-02-23 | 山东理工大学 | A kind of multi-pass increment rolling forming process |
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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: 20131030 |