CN103447423A - Abrasion-resistant straight-grain cylindrical die roll with guide angles and scrap accommodating function - Google Patents
Abrasion-resistant straight-grain cylindrical die roll with guide angles and scrap accommodating function Download PDFInfo
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- CN103447423A CN103447423A CN 201210186357 CN201210186357A CN103447423A CN 103447423 A CN103447423 A CN 103447423A CN 201210186357 CN201210186357 CN 201210186357 CN 201210186357 A CN201210186357 A CN 201210186357A CN 103447423 A CN103447423 A CN 103447423A
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- cylindrical die
- die roll
- abrasion
- straight
- tooth
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Abstract
The invention relates to an abrasion-resistant straight-grain cylindrical die roll with guide angles and a scrap accommodating function. The abrasion-resistant straight-grain cylindrical die roll comprises a cylindrical die roll body (1). At least two threads (4) are arranged on the outer surface of the cylindrical die roll body (1), each thread (4) is perpendicular to the axial direction of a center hole (2) and is divided into a crest (5) and a root (6), a scrap accommodating groove (8) is formed in the bottom of each root (6), the guide angles alpha are formed among straight lines where the multiple crests (5) are located and straight lines where the multiple roots (6) are located, and coatings (7) are arranged on the outer sides of the threads (4) and are made of titanium. The abrasion-resistant straight-grain cylindrical die roll with the guide angles and the scrap accommodating function has the advantages that the abrasion-resistant straight-grain cylindrical die roll has the certain guide angles, so that a screw rolled by the abrasion-resistant straight-grain cylindrical die roll is high in strength and good in quality and is not easy to break; the abrasion-resistant straight-grain cylindrical die roll is good in abrasion resistance, the service life of the abrasion-resistant straight-grain cylindrical die roll is prolonged, and the production cost is lowered; redundant scraps generated in a machining procedure can be collected by the scrap accommodating grooves, so that the quality of a bolt can be guaranteed.
Description
(1) technical field
The present invention relates to a kind of cylindrical die roll, relate in particular to a kind of wear-resisting appearance bits straight burr cylindrical die roll with 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; 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, easily damage, and service life is short, has increased production cost; In the process of bolt, can produce unnecessary scrap on cylindrical die roll, affected to a certain extent the processing effect of bolt, the bolt poor quality who produces.
(3) summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of wear-resisting appearance bits straight burr cylindrical die roll with guide angle that guide angle, depth of threat become greatly gradually, wearability is good and can collect unnecessary scrap that has is provided.
The object of the present invention is achieved like this:
A kind of wear-resisting appearance bits straight burr cylindrical die roll with 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, the outer surface of described cylindrical die roll body 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, the bottom of described root of the tooth is provided with chip pocket, there is guide angle α between the straight line at described a plurality of crest and a plurality of roots of the tooth place, the outside of described tooth line is provided with coating, the material of described coating is titanium.
The present invention has the wear-resisting appearance bits straight burr cylindrical die roll of guide angle, and 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 that the present invention has the wear-resisting appearance bits straight burr cylindrical die roll of 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 to rupture; Scribble titanium layer in the tooth line outside, increased wearability, can extend the service life of wear-resisting cylindrical die roll, also reduced production cost simultaneously; The bottom of root of the tooth is provided with the scrap groove, can be collected in the unnecessary scrap produced in the process of processing, has guaranteed the quality of bolt.
(4) accompanying drawing explanation
Fig. 1 is the vertical section structure schematic diagram that the present invention has the wear-resisting appearance bits straight burr cylindrical die roll of guide angle.
Fig. 2 is the cross section cutaway view that the present invention has the wear-resisting appearance bits straight burr cylindrical die roll of 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
Coating 7
(5) specific embodiment
Referring to Fig. 1～Fig. 3, the present invention has the wear-resisting appearance bits straight burr cylindrical die roll of 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 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, the bottom of described root of the tooth 6 is provided with chip pocket 8, 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 outside of described tooth line 4 is provided with coating 7, the material of described coating 7 is titanium.
The depth of threat that the present invention has the wear-resisting appearance bits straight burr cylindrical die roll of 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 to rupture; The outside at tooth line 4 scribbles titanium layer, has increased wearability, can extend the service life of wear-resisting cylindrical die roll, has also reduced production cost simultaneously; Be provided with chip pocket 8 in the bottom of root of the tooth 6, can be collected in the bolt process the unnecessary scrap produced, guaranteed the quality of bolt.
Claims (2)
1. the wear-resisting appearance with guide angle is considered the straight burr cylindrical die roll to be worth doing, 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 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: the bottom of described root of the tooth (6) is provided with chip pocket (8), 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) place, the outside of described tooth line (4) is provided with coating (7), the material of described coating (7) is titanium.
2. a kind of wear-resisting appearance bits straight burr cylindrical die roll with 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 |
|---|---|---|---|
| CN 201210186357 CN103447423A (en) | 2012-05-28 | 2012-05-28 | Abrasion-resistant straight-grain cylindrical die roll with guide angles and scrap accommodating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210186357 CN103447423A (en) | 2012-05-28 | 2012-05-28 | Abrasion-resistant straight-grain cylindrical die roll with guide angles and scrap accommodating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103447423A true CN103447423A (en) | 2013-12-18 |
Family
ID=49730484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210186357 Pending CN103447423A (en) | 2012-05-28 | 2012-05-28 | Abrasion-resistant straight-grain cylindrical die roll with guide angles and scrap accommodating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103447423A (en) |
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2012
- 2012-05-28 CN CN 201210186357 patent/CN103447423A/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: 20131218 |