CN100584514C - Rear axle housing assembly semi-axle sleeve oil sealed shaft neck surface processing technique - Google Patents
Rear axle housing assembly semi-axle sleeve oil sealed shaft neck surface processing technique Download PDFInfo
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- CN100584514C CN100584514C CN200710168951A CN200710168951A CN100584514C CN 100584514 C CN100584514 C CN 100584514C CN 200710168951 A CN200710168951 A CN 200710168951A CN 200710168951 A CN200710168951 A CN 200710168951A CN 100584514 C CN100584514 C CN 100584514C
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Abstract
The invention belongs to the technical field of mechanical processing, which relates to a surface processing technology of a full floating typed rear axle assembly half shaft sleeve oil seal shaft neck. The tool holder of a numerical control lathe is respectively provided with a nipping and turning tool of a numerical control machine and an external round rolling tool; the surface of the external round of all sections of the half shaft sleeve 3 is precisely turned by the nipping and turning tool of the numerical control machine; wherein, a rolling processing allowance is preserved along the diameter direction of the external round of an internal oil seal shaft neck and an external oil seal shaft neck; after the surface roughness is less than Ra3.2, the tool holder is rotated; the rolling process is achieved for the external round surfaces 1, 2 which are matched with the internal oil seal and the external oil seal by the external round rolling tool, so as to lead the surface roughness to be less than Ra0.8; after that, a polisher abrasive belt which is arranged on the lathe is used for polishing, so as to eliminate fine spiral line patterns which are generated on the rolling surface. The invention has lower cost compared with the method that polishing is achieved after directly precise turning and the grinding is replaced by the turning, furthermore, the oil leakage ratio of the oil seal of the rear axle rear hub is reduced from 4-6 millesimal before the method is improved to 1.8 millesimal, the quality of the products is obviously improved, and the requirements of the users are satisfied.
Description
Technical field
The invention belongs to the mechanical processing technique field, relate to a kind of full floating rear axle housing assembly axle sleeve oil sealed shaft neck surface processing technique.
Background technology
At present, it generally is to adopt general-purpose grinder or numerically control grinder grinding technique that full floating rear axle housing assembly axle tube respectively saves outer round surface fine finishining, and shortcoming mainly is that investment is big and productivity effect is low.And since grinding as being regardless of corase grind, correct grinding, generally surface roughness also can only reach Ra1.6; And respectively save cylindrical for mill fine finishining rear axle housing assembly axle tube with car, earlier surface roughness is reached about Ra2.5 at finish turning on the numerically controlled lathe, and then with in the polishing machine polishing assembling, outer oil seal respectively saves cylindrical, make surface roughness value reach Ra1.6, when but finish turning will reach Ra2.5, the blade expense is big, and polishing reaches also difficulty relatively of Ra1.6, require still more less than Ra0.8, therefore this kind technology will improve surface quality again, and polishing time prolongs more, does not satisfy the batch process needs, and oil spill rate annual fault is generally 4～6 ‰, does not satisfy the batch machining requirement.
Summary of the invention
The purpose of this invention is to provide a kind of axle tube oil sealing journal surface processing technology at the full floating rear axle housing assembly.
The present invention is achieved in that and adorns numerical control mechanically-clamped turning tool and outer circle rolling tool respectively on the numerically controlled lathe knife rest, respectively save outer round surface with numerical control mechanically-clamped turning tool elder generation finish turning axle tube, wherein inside and outside oil sealing axle journal outside diameter direction is stayed the rolling and processing surplus, surface roughness value less than Ra3.2 after, rotating turret again, use the outer circle rolling tool pair outer round surface that cooperates with inside and outside oil sealing to carry out rolling and processing, making its surface roughness value is less than Ra0.8, with the polishing machine abrasive band polishing that is contained on the lathe, eliminate the thin helix lines that rolling surface produces again.
Further be optimized for: on the numerically controlled lathe knife rest, adorn 90 number of degrees control mechanically-clamped turning tool and outer circle rolling tools, respectively save outer round surface with numerical control mechanically-clamped turning tool elder generation finish turning axle tube, wherein inside and outside oil sealing axle journal outside diameter direction is stayed 0.015～0.03mm surplus, uses hardness HRC:74～81 outer circle rolling tools pair outer round surface that cooperates with inside and outside oil sealing to carry out rolling and processing.
The surface roughness value of the journal surface of the present invention's processing just can be less than Ra0.8 through a roll extrusion, behind direct finish turning, polish with car lower again for the method cost of mill, and, the oil sealing oil spill rate is reduced to 1.8 ‰ by 4～6 ‰ before not improving, product quality significantly improves, and has satisfied processing request.
Description of drawings
Fig. 1, NKR embodiment of the present invention 1 rear axle assy partial structurtes schematic diagram.
Among the figure: inner oil seal outer round surface 1, outer oil seal outer round surface 2, axle tube 3.
The specific embodiment
Embodiment 1: with processing NKR light truck back axle is example, axle journal Φ 77 ± 0.05, the Φ 46 ± 0.05 that cooperates with inside and outside oil seal lip for processing rear axle housing assembly axle tube and assemble inside and outside bearing journal surface; Inside and outside oil sealing journal surface roughness value requires less than Ra1.6.The best reaches between the Ra 0.2～0.8, and the running in bearings surface roughness value is less than Ra1.6.
Be on 1.9 meters the CAK6150Dj numerically controlled lathe in the processing length scope, the machining accuracy of numerically controlled lathe is wanted to reach IT6～IT7 precision, the NKR rear axle housing assembly clamping of half finish turning is good, spindle end adopts scroll chuck to clamp axle tube 3 one joint cylindricals, the other end adopts the top axle tube 3 aperture chamfering conical surfaces that hold out against of high accuracy, then by starting knob, respectively save cylindrical with numerical control mechanically-clamped turning tool point of a knife finish turning axle tube 3, wherein assemble oil sealing in, outer oil seal cylindrical 1, after 2 diametric(al)s are stayed 0.015～0.03mm surplus, after rotating turret puts the carbide alloy rolling tools in place again, roll extrusion with in, the axle journal cylindrical that the outer oil seal lip cooperates reaches dimensional requirement Φ 77 ± 0.05 respectively, Φ 46 ± 0.05, make this two joints outer round surface roughness value less than Ra0.8, use again abrasive band polishing rear axle housing assembly axle tube with in, the journal surface that the outer oil seal lip cooperates is eliminated the thin helix lines that rolling surface produces.The numerical control mechanically-clamped turning tool is the lathe tool of import, and the hardness of carbide alloy rolling tools is: HRC:74-81.
Adopt processing method of the present invention, the outer round surface roughness process capability index Cpk value that NKR class rear axle housing assembly axle tube 3 cooperates with inside and outside oil seal lip is greater than more than 1.67, and surface quality is significantly improved, and has stably guaranteed product quality.
Claims (2)
1, a kind of rear axle housing assembly axle sleeve oil sealed shaft neck surface processing technique, on the numerically controlled lathe knife rest, adorn numerical control mechanically-clamped turning tool and outer circle rolling tool respectively, respectively save outer round surface with numerical control mechanically-clamped turning tool elder generation finish turning axle tube, wherein, outer oil seal axle journal outside diameter direction is stayed the rolling and processing surplus, surface roughness value less than Ra3.2 after, rotating turret again, use outer circle rolling tool pair with in, the outer round surface that outer oil seal cooperates carries out rolling and processing, making its surface roughness value is less than Ra0.8, again with the polishing machine abrasive band polishing that is contained on the lathe, eliminate the thin helix lines that rolling surface produces, it is characterized in that: on the numerically controlled lathe knife rest, adorn 90 number of degrees control mechanically-clamped turning tool and outer circle rolling tools, in when respectively saving outer round surface with numerical control mechanically-clamped turning tool elder generation finish turning axle tube, outer oil seal axle journal outside diameter direction is stayed 0.015～0.03mm surplus, use hardness HRC:74～81 outer circle rolling tools pair with in, the outer round surface that outer oil seal cooperates carries out rolling and processing.
2, a kind of rear axle housing assembly axle sleeve oil sealed shaft neck surface processing technique according to claim 1, it is characterized in that: the requirement on machining accuracy of described numerically controlled lathe reaches IT6～IT7 precision, the rear axle housing assembly clamping of half finish turning is good, spindle end adopts scroll chuck to clamp axle tube one joint cylindrical, the other end adopts the top axle tube aperture chamfering conical surface that holds out against, then by starting knob, respectively save cylindrical with numerical control mechanically-clamped turning tool point of a knife finish turning axle tube, wherein assemble oil sealing in, after outer oil seal outside diameter direction is stayed 0.015～0.03mm surplus, after rotating turret puts rolling tools in place again, roll extrusion with in, the axle journal cylindrical that the outer oil seal lip cooperates reaches dimensional requirement, make this two joints outer round surface roughness value less than Ra0.8, use again abrasive band polishing rear axle housing assembly axle tube with in, the journal surface that the outer oil seal lip cooperates is eliminated the thin helix lines that rolling surface produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710168951A CN100584514C (en) | 2007-12-15 | 2007-12-15 | Rear axle housing assembly semi-axle sleeve oil sealed shaft neck surface processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710168951A CN100584514C (en) | 2007-12-15 | 2007-12-15 | Rear axle housing assembly semi-axle sleeve oil sealed shaft neck surface processing technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101224535A CN101224535A (en) | 2008-07-23 |
| CN100584514C true CN100584514C (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710168951A Expired - Fee Related CN100584514C (en) | 2007-12-15 | 2007-12-15 | Rear axle housing assembly semi-axle sleeve oil sealed shaft neck surface processing technique |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451984A (en) * | 2010-10-21 | 2012-05-16 | 天津迎新船舶机械有限公司 | Guide shaft and guide core processing technic for cable arrangement device |
| CN103223573B (en) * | 2013-04-24 | 2016-08-17 | 新绛县祥和机械有限公司 | The processing method of elevator traction machine rotor piece |
| CN103752856A (en) * | 2013-12-23 | 2014-04-30 | 青特集团有限公司 | Wheel hub shaft tube rolling processing method |
| CN109093322A (en) * | 2018-07-17 | 2018-12-28 | 沈阳鼓风机集团核电泵业有限公司 | Water-lubricating axle sleeve outer circle rolling tooling and rolling depression method in axle envelope main pump |
| CN109530725A (en) * | 2018-11-23 | 2019-03-29 | 中国第汽车股份有限公司 | A kind of turning process of automotive axle housing tube hardened face |
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2007
- 2007-12-15 CN CN200710168951A patent/CN100584514C/en not_active Expired - Fee Related
Non-Patent Citations (6)
| Title |
|---|
| 数控滚压成型实验的开设. 胡伟蓉.实验室研究与探索，第20卷第2期. 2001 |
| 数控滚压成型实验的开设. 胡伟蓉.实验室研究与探索，第20卷第2期. 2001 * |
| 曲轴加工新技术. 周德生.机械工人(冷加工)，第5期. 2004 |
| 曲轴加工新技术. 周德生.机械工人(冷加工)，第5期. 2004 * |
| 滚挤压抛光工艺在曲轴加工中的应用. 郭金城.汽车技术，第8期. 1994 |
| 滚挤压抛光工艺在曲轴加工中的应用. 郭金城.汽车技术，第8期. 1994 * |
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| CN101224535A (en) | 2008-07-23 |
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Granted publication date: 20100127 Termination date: 20121215 |