CN202621789U - Wear-resisting straight-pattern cylindrical die roll with guide angle - Google Patents
Wear-resisting straight-pattern cylindrical die roll with guide angle Download PDFInfo
- Publication number
- CN202621789U CN202621789U CN 201220265866 CN201220265866U CN202621789U CN 202621789 U CN202621789 U CN 202621789U CN 201220265866 CN201220265866 CN 201220265866 CN 201220265866 U CN201220265866 U CN 201220265866U CN 202621789 U CN202621789 U CN 202621789U
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- cylindrical die
- die roll
- tooth
- wear
- guide angle
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Abstract
The utility model relates to a wear-resisting straight-pattern cylindrical die roll with a guide angle. The wear-resisting straight-pattern cylindrical die roll comprises a cylindrical die roll body (1), wherein at least two tooth patterns (4) are arranged on the outer surface of the cylindrical die roll body (1); the tooth patterns (4) are arranged along a direction vertical to the axial direction of a center hole (2); each tooth pattern (4) is divided into a tooth top (5) and a tooth root (6); an guide angle alpha exits between the straight lines of the tooth tops (5) and the tooth roots (6); and coatings (7) which are made of titanium are arranged on the outer side of the tooth patterns (4). According to the wear-resisting straight-pattern cylindrical die roll with the guide angle, the tooth depth is increased gradually and a certain guide angle is provided, so that rolled screw rods are high in strength, good in quality and not easy to fracture; and the titanium coatings are coated on the outer side of the tooth patterns, so that the wear resistance is increased, the service life of the wear-resisting cylindrical die roll is prolonged and the production cost is reduced at the same time.
Description
(1) technical field
The utility model relates to a kind of cylindrical die roll, relates in particular to a kind of wear-resisting straight burr 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; The wearability of cylindrical die roll is bad in addition, and in the process of bolt, the long-term friction of bolt and wear-resisting cylindrical die roll damages easily, and service life is short, has increased production cost.
(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 big and the good wear-resisting straight burr cylindrical die roll that contains guide angle of wearability gradually.
The purpose of the utility model is achieved in that
A kind of wear-resisting straight burr cylindrical die roll that contains guide angle comprises cylindrical die roll body and centre bore, and said centre bore edge is provided with keyway; The cross section of said cylindrical die roll body is annular, and the outer surface of said cylindrical die roll body is provided with the tooth line, and said tooth line has two at least; Said each tooth line is straight burr; Said each tooth line arranges that 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 outside of said tooth line is provided with coating, and the material of said coating is a titanium.
The utility model contains the wear-resisting straight burr cylindrical die roll of guide angle, and the material of said cylindrical die roll body 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 wear-resisting straight burr 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; Scribble titanium layer in the tooth line outside, increased wearability, can prolong the service life of wear-resisting cylindrical die roll, also reduced production cost simultaneously.
(4) description of drawings
Fig. 1 contains the vertical section structure sketch map of the wear-resisting straight burr cylindrical die roll of guide angle for the utility model.
Fig. 2 contains the cross section cutaway view of the wear-resisting straight burr cylindrical die roll of guide angle for the utility model.
Fig. 3 is the structural representation of screw thread.
Wherein:
Cylindrical die roll body 1
Centre bore 2
Keyway 3
Tooth line 4
Crest 5
Root of the tooth 6
Coating 7.
(5) specific embodiment
Referring to Fig. 1～Fig. 3, the utility model contains the wear-resisting straight burr cylindrical die roll of guide angle, comprises cylindrical die roll body 1 and centre bore 2; Said centre bore 2 edges are provided with keyway 3, and the material of said cylindrical die roll body 1 adopts medium carbon steel, and the cross section of said cylindrical die roll body 1 is annular; The outer surface of said cylindrical die roll body 1 is provided with tooth line 4; Said tooth line 4 has two at least, and said 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; Have guide angle α between the straight line at said a plurality of crest 5 and a plurality of root of the tooth 6 places, the outside of said tooth line 4 is provided with coating 7, and the material of said coating 7 is a titanium.
The depth of threat that the utility model contains the wear-resisting straight burr 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; The outside at tooth line 4 scribbles titanium layer, has increased wearability, can prolong the service life of wear-resisting cylindrical die roll, has also reduced production cost simultaneously.
Claims (2)
1. wear-resisting straight burr cylindrical die roll that contains guide angle; Comprise cylindrical die roll body (1) and centre bore (2), said centre bore (2) edge is provided with keyway (3), and the cross section of said cylindrical die roll body (1) is annular; The outer surface of said cylindrical die roll body (1) 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, the outside of said tooth line (4) is provided with coating (7), and the material of said coating (7) is a titanium.
2. a kind of wear-resisting straight burr cylindrical die roll that contains guide angle according to claim 1 is characterized in that: the material of said cylindrical die roll body (1) adopts medium carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265866 CN202621789U (en) | 2012-05-28 | 2012-05-28 | Wear-resisting straight-pattern cylindrical die roll with guide angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265866 CN202621789U (en) | 2012-05-28 | 2012-05-28 | Wear-resisting straight-pattern cylindrical die roll with guide angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202621789U true CN202621789U (en) | 2012-12-26 |
Family
ID=47375032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265866 Expired - Fee Related CN202621789U (en) | 2012-05-28 | 2012-05-28 | Wear-resisting straight-pattern cylindrical die roll with guide angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202621789U (en) |
-
2012
- 2012-05-28 CN CN 201220265866 patent/CN202621789U/en not_active Expired - Fee Related
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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: 20121226 Termination date: 20130528 |