CN102744262A - Method for restraining axial floating of transverse wedge rolling unsymmetrical shaft part - Google Patents
Method for restraining axial floating of transverse wedge rolling unsymmetrical shaft part Download PDFInfo
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- CN102744262A CN102744262A CN2012102298764A CN201210229876A CN102744262A CN 102744262 A CN102744262 A CN 102744262A CN 2012102298764 A CN2012102298764 A CN 2012102298764A CN 201210229876 A CN201210229876 A CN 201210229876A CN 102744262 A CN102744262 A CN 102744262A
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Abstract
The invention discloses a method for restraining axial floating of a transverse wedge rolling unsymmetrical shaft part, which is characterized by comprising the following steps: arranging a rack-shaped flat wedge on at least one rolled shaft section part of a rolling mould, wherein an inclined direction of the flat wedge is consistent with a flowing direction of the end face of a to-be-rolled part; heating the to-be-rolled part; conveying the heated to-be-rolled part into the rolling mould by an axial feeding device on a transverse wedge rolling machine, so as to roll; and during a rolling process, nipping the flat wedge into an unformed shaft section of the to-be-rolled part, thereby lastly obtaining a qualified unsymmetrical shaft part. The method has the advantages that the unformed shaft section of the to-be-rolled part is in contact with the transverse wedge all the time during the process of rolling the unsymmetrical shaft part; an unbalanced axial force generated in a deformed area of the to-be-rolled part is resisted by the transverse wedge; the phenomena of axial floating and stair misrun caused by unsuitable selection of mould parameters are overcome; and the reasonable rolling of the unsymmetrical shaft part is effectively ensured, so that the overall dimension and the mechanical property of the rolled products are also ensured.
Description
Technical field
The present invention relates to a kind of axial workpiece plastic forming technology, relate in particular to the method that the asymmetric axle type part of a kind of cross wedge rolling suppresses axial float.
Background technology
Cross wedge rolling is a kind of axial workpiece New Forming Process, has advantages such as efficient material-saving, has at home and abroad obtained using more widely.Along with the fast development of transportation and mechanized equipment industry, the demand of various axial workpieces grows with each passing day, and the overwhelming majority is asymmetric axial workpiece in the axle type part.When the rolling asymmetric axial workpiece of cross wedge rolling single-piece; Because the left and right contraction percentage of area of axial workpiece or broadening length is inconsistent; The technological parameter of the left and right deformed area of rolling mould is chosen can not be just the same, if rule of thumb choose die parameters, the axial force that left and right deformed area produced when rolling is difficult to balance; Cause an asymmetric axle type part defectives such as rolled piece axial float, step misrun in the operation of rolling, to occur, influence the appearance and size and the mechanical performance of product.
Summary of the invention
Technical problem to be solved by this invention provides the method that a kind of asymmetric axle type part of cross wedge rolling that prevents that the rolled piece axial float from appearring in asymmetric axle type part in the operation of rolling suppresses axial float.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the asymmetric axle type part of a kind of cross wedge rolling suppresses the method for axial float, and it comprises following concrete steps:
(1), rolled the flat wedge that the shaft part position is provided with at least one spline-simulating, the incline direction of flat wedge is with consistent by rolled piece end face flow direction, and the tiltangle of putting down wedge is set at least one of rolling mould
iIt is 3～9 °;
(2), will be heated to 900～1200 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould after will heating through the axial admission device on the cross wedge rolling machine is rolled; When rolling, flat wedge is nipped by the unshaped shaft part of rolled piece, and along with rolling carrying out; The deformation section that is positioned at flat wedge place on the rolled piece is rolled shaping wedge on the mould and pushes away flatly, finally obtains qualified asymmetric axle type part.
The tooth depth of each tooth is that 0.5～2.5mm, the facewidth are that the length of 10～30mm, tooth top is that the length of 5～20mm, tooth root is 5～50mm on the described flat wedge.
The quilt of described rolling mould rolls the flat wedge that the shaft part position is provided with a spline-simulating.
Compared with prior art; Advantage of the present invention is owing to rolled the flat wedge that the shaft part position is provided with spline-simulating at least one of rolling mould; When rolling asymmetric axle type part; By the unshaped shaft part of rolled piece all the time with flat wedge contact, flat wedge has been resisted by the unbalanced axial force that the deformed area produced of rolled piece, overcome since die parameters choose phenomenons such as the improper axial motion that causes, step misrun; Guaranteed the rationally rolling of asymmetric axle type part effectively, thus the appearance and size and the mechanical performance of the product that has also guaranteed to roll out; The flat wedge of what is more important can be arranged on by unfashioned any shaft part of rolled piece, need not be arranged on the end face of stub bar, and flexibility is stronger; And should also help to promote to be enlarged the selection of process parameters scope by flat wedge, help to reduce the friction that rolling mould receives simultaneously, reduce the wearing and tearing of rolling mould, improved the service life of rolling mould by the rotation of rolled piece.
Description of drawings
Fig. 1 is of the present invention by one of structural representation of rolled piece;
Fig. 2 is the schematic perspective view of the embodiment of the invention one, two employed rolling moulds;
Fig. 3 is the enlarged diagram at A place among Fig. 2;
Fig. 4 is the expansion sketch map of Fig. 2;
Fig. 5 is the longitudinal section sketch map of flat wedge on the rolling mould of the embodiment of the invention one;
Fig. 6 is the schematic perspective view of the embodiment of the invention three, four employed rolling moulds;
Fig. 7 is the expansion sketch map of Fig. 6;
Fig. 8 rolling mould shown in Figure 6 for the present invention uses obtain by the effect of rolling figure of rolled piece.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one: as shown in the figure, utilize the rolling asymmetric detailed process as shown in Figure 1 of this milling method following:
(1), roll the flat wedge 3 that shaft part position 2 is provided with spline-simulating, the tooth depth h of each tooth is that 1.5mm, facewidth w are the length L of 20mm, tooth top on the flat wedge 3 at a quilt of rolling mould 1
1Length L for 10mm, tooth root
2Be 30mm, the incline direction of flat wedge 3 is with consistent by rolled piece end face flow direction, and the tiltangle of putting down wedge 3 is set is 4 °;
(2), will be heated to 1050 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould 1 after will heating through the axial admission device on the cross wedge rolling machine is rolled; When rolling, flat wedge 3 is nipped by the unshaped shaft part of rolled piece, and along with rolling carrying out; The deformation section that is positioned at flat wedge 3 places on the rolled piece is rolled shaping wedge 4 on the mould and pushes away flatly, finally obtains qualified asymmetric axle as shown in Figure 1.
Embodiment two: as shown in the figure, utilize the rolling asymmetric detailed process as shown in Figure 1 of this milling method following:
(1), roll the flat wedge 3 that shaft part position 2 is provided with spline-simulating, the tooth depth h of each tooth is that 2.5mm, facewidth w are the length L of 30mm, tooth top on the flat wedge 3 at a quilt of rolling mould 1
1Length L for 20mm, tooth root
2Be 50mm, the incline direction of flat wedge 3 is with consistent by rolled piece end face flow direction, and the tiltangle of putting down wedge 3 is set is 8 °;
(2), will be heated to 1200 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould 1 after will heating through the axial admission device on the cross wedge rolling machine is rolled; When rolling, flat wedge 3 is nipped by the unshaped shaft part of rolled piece, and along with rolling carrying out; The deformation section that is positioned at flat wedge 3 places on the rolled piece is rolled shaping wedge 4 on the mould and pushes away flatly, finally obtains qualified asymmetric axle as shown in Figure 1.
Embodiment three: as shown in the figure, utilize the rolling asymmetric detailed process as shown in Figure 1 of this milling method following:
(1), roll the flat wedge 3 that shaft part position 2 is provided with spline-simulating respectively, the tooth depth h of each tooth is that 0.8mm, facewidth w are the length L of 10mm, tooth top on the flat wedge 3 at left and right two quilts of rolling mould 1
1Length L for 5mm, tooth root
2Be 10mm, the incline direction of flat wedge 3 is with consistent by rolled piece end face flow direction, and setting is positioned at the tiltangle of the flat wedge 3 in left side
1Be 3.2 °, be positioned at the tiltangle of the flat wedge 3 on right side
2It is 5 °;
(2), will be heated to 950 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould 1 after will heating through the axial admission device on the cross wedge rolling machine be rolled, and when rolling, flat wedge 3 is nipped by the unshaped shaft part of rolled piece; And along with rolling carrying out; The deformation section that is positioned at flat wedge 3 places on the rolled piece is rolled shaping wedge 4 on the mould and pushes away flatly, finally obtains qualified asymmetric axle as shown in Figure 1, and effect of rolling is as shown in Figure 8.
Embodiment four: as shown in the figure, utilize the rolling asymmetric detailed process as shown in Figure 1 of this milling method following:
(1), roll the flat wedge 3 that shaft part position 2 is provided with spline-simulating respectively, the tooth depth h of each tooth is that 2mm, facewidth w are the length L of 25mm, tooth top on the flat wedge 3 at left and right two quilts of rolling mould 1
1Length L for 15mm, tooth root
2Be 40mm, the incline direction of flat wedge 3 is with consistent by rolled piece end face flow direction, and setting is positioned at the tiltangle of the flat wedge 3 in left side
1Be 4.8 °, be positioned at the tiltangle of the flat wedge 3 on right side
2It is 7 °;
(2), will be heated to 1100 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould 1 after will heating through the axial admission device on the cross wedge rolling machine be rolled, and when rolling, flat wedge 3 is nipped by the unshaped shaft part of rolled piece; And along with rolling carrying out; The deformation section that is positioned at flat wedge 3 places on the rolled piece is rolled shaping wedge 4 on the mould and pushes away flatly, finally obtains qualified asymmetric axle as shown in Figure 1, and effect of rolling is as shown in Figure 8.
Claims (3)
1. asymmetric type part of a cross wedge rolling suppresses the method for axial float, it is characterized in that it comprises following concrete steps:
(1), rolled the flat wedge that the shaft part position is provided with at least one spline-simulating, the incline direction of flat wedge is with consistent by rolled piece end face flow direction, and the tiltangle of putting down wedge is set at least one of rolling mould
iIt is 3～9 °;
(2), will be heated to 900～1200 ℃ by rolled piece; And being sent to by rolled piece in this rolling mould after will heating through the axial admission device on the cross wedge rolling machine is rolled; When rolling, flat wedge is nipped by the unshaped shaft part of rolled piece, and along with rolling carrying out; The deformation section that is positioned at flat wedge place on the rolled piece is rolled shaping wedge on the mould and pushes away flatly, finally obtains qualified asymmetric axle type part.
2. the asymmetric axle of a kind of cross wedge rolling as claimed in claim 1 type part suppresses the method for axial float, and the tooth depth that it is characterized in that each tooth on the described flat wedge is that 0.5～2.5mm, the facewidth are that the length of 10～30mm, tooth top is that the length of 5～20mm, tooth root is 5～50mm.
3. the asymmetric axle type part of a kind of cross wedge rolling as claimed in claim 1 suppresses the method for axial float, it is characterized in that the quilt of described rolling mould rolls the flat wedge that the shaft part position is provided with a spline-simulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229876.4A CN102744262B (en) | 2012-07-02 | 2012-07-02 | Method for restraining axial floating of transverse wedge rolling unsymmetrical shaft part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229876.4A CN102744262B (en) | 2012-07-02 | 2012-07-02 | Method for restraining axial floating of transverse wedge rolling unsymmetrical shaft part |
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| CN102744262A true CN102744262A (en) | 2012-10-24 |
| CN102744262B CN102744262B (en) | 2014-12-24 |
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| CN201210229876.4A Active CN102744262B (en) | 2012-07-02 | 2012-07-02 | Method for restraining axial floating of transverse wedge rolling unsymmetrical shaft part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722578A (en) * | 2015-04-14 | 2015-06-24 | 宣城市泰维特精工科技有限公司 | Rolling device for rod piece forging blank and rod piece forming method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1334263A (en) * | 1970-06-19 | 1973-10-17 | Vyzk Ustav Tvarecich Stroju | Tool for cross wedge rolling of non-symmetrical rolled owrkpieces |
| US4121443A (en) * | 1976-10-20 | 1978-10-24 | Vyzkumny Ustav Tvarecich Stroju A Technologie Tvareni | Method of and apparatus for rolling long work pieces |
| CN101658858A (en) * | 2009-09-16 | 2010-03-03 | 北京科技大学 | Cross wedge rolling forming method of hollow shaft head of automobile rear bridge |
| CN101722185A (en) * | 2009-11-26 | 2010-06-09 | 宁波大学 | Method for rolling feed head-free cross wedge rolling of axial parts |
| CN101758149A (en) * | 2010-01-29 | 2010-06-30 | 山东中兴汽车零部件有限公司 | Rotator shaft residual material-free obliquely and transversely rolling method and special mold |
| CN102166609A (en) * | 2010-12-27 | 2011-08-31 | 宁波大学 | Asymmetric shaft parts cross wedge rolling and stable rolling method |
-
2012
- 2012-07-02 CN CN201210229876.4A patent/CN102744262B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1334263A (en) * | 1970-06-19 | 1973-10-17 | Vyzk Ustav Tvarecich Stroju | Tool for cross wedge rolling of non-symmetrical rolled owrkpieces |
| US4121443A (en) * | 1976-10-20 | 1978-10-24 | Vyzkumny Ustav Tvarecich Stroju A Technologie Tvareni | Method of and apparatus for rolling long work pieces |
| CN101658858A (en) * | 2009-09-16 | 2010-03-03 | 北京科技大学 | Cross wedge rolling forming method of hollow shaft head of automobile rear bridge |
| CN101722185A (en) * | 2009-11-26 | 2010-06-09 | 宁波大学 | Method for rolling feed head-free cross wedge rolling of axial parts |
| CN101758149A (en) * | 2010-01-29 | 2010-06-30 | 山东中兴汽车零部件有限公司 | Rotator shaft residual material-free obliquely and transversely rolling method and special mold |
| CN102166609A (en) * | 2010-12-27 | 2011-08-31 | 宁波大学 | Asymmetric shaft parts cross wedge rolling and stable rolling method |
Non-Patent Citations (1)
| Title |
|---|
| 黄德政等: "不对称轴类件楔横轧工艺与孔型设计", 《二汽科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722578A (en) * | 2015-04-14 | 2015-06-24 | 宣城市泰维特精工科技有限公司 | Rolling device for rod piece forging blank and rod piece forming method |
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| CN102744262B (en) | 2014-12-24 |
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Effective date of registration: 20170210 Address after: 246003 Anhui Province, Anqing City Yingjiang District Lingang Industrial Park, North Ring Road No. 2 Patentee after: Anqing Zhenfa Auto Parts Technology Co. Ltd. Address before: 315211 Zhejiang Province, Ningbo Jiangbei District Fenghua Road No. 818 Patentee before: Ningbo University |
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Effective date of registration: 20200812 Address after: No.2, industrial park, economic development zone, Anqing City, Anhui Province Patentee after: Anqing Zhenfa Machinery Technology Co., Ltd Address before: 246003 Anhui Province, Anqing City Yingjiang District Lingang Industrial Park, North Ring Road No. 2 Patentee before: ANQING ZHENFA AUTO PARTS TECHNOLOGY Co.,Ltd. |