CN102091912A - Processing method of precise taper sleeve bearing bush - Google Patents

Processing method of precise taper sleeve bearing bush Download PDF

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Publication number
CN102091912A
CN102091912A CN 201010593549 CN201010593549A CN102091912A CN 102091912 A CN102091912 A CN 102091912A CN 201010593549 CN201010593549 CN 201010593549 CN 201010593549 A CN201010593549 A CN 201010593549A CN 102091912 A CN102091912 A CN 102091912A
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China
Prior art keywords
grinding
processing method
male cone
strobilus masculinus
tapered surface
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CN 201010593549
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Chinese (zh)
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CN102091912B (en
Inventor
舒洪兴
章群渝
吕昌权
何甦
魏筑军
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GUIYANG XIANFENG MACHINE TOOL WORKS CO Ltd
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GUIYANG XIANFENG MACHINE TOOL WORKS CO Ltd
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Priority to CN2010105935498A priority Critical patent/CN102091912B/en
Publication of CN102091912A publication Critical patent/CN102091912A/en
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Publication of CN102091912B publication Critical patent/CN102091912B/en
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  • Rolling Contact Bearings (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The invention discloses a processing method of a precise taper sleeve bearing bush. The processing method comprises the following steps of: roughly turning an outer tapered surface (4), two end surfaces and an inner hole; carrying out recrystallization and annealing treatment; finish turning the outer tapered surface and the inner hole; grinding the two end surfaces; roughly grinding the inner hole with a grinding allowance of 0.50mm; turning the outer tapered surface (4) and an annular groove (5) with a grinding allowance of 0.5mm; roughly grinding the outer tapered surface (4) in a ratio of 1:7.5 with a grinding allowance of 0.20mm; carrying out digital control wire-cutting on an appearance and an oil-breaking groove (2); processing an oil inlet (3); stabilizing annealing; precisely grinding the two end surfaces; grinding the two end surfaces; finely grinding the inner hole; precisely grinding the outer tapered surface (4), wherein the smear test contact rate of the outer tapered surface is larger than 80 percent; shoveling and grinding the annular groove (5); and truing the appearance by a sample tongman and removing an oxide skin generated by wire-cutting. The processing method provided by the invention has the advantages of good stability, high reliability, guarantee on precision of the bearing bush, certain elasticity, adjustable clearance between the bearing bush and the spindle, convenience for assembly and maintenance and strong operability.

Description

Accurate tapered sleeve bearing shell processing method
Technical field: the present invention relates to the processing of high-precision roller grinder and cylindrical grinder bearing shell, particularly a kind of accurate tapered sleeve bearing shell processing method.
Background technology: bistrique bearing shell in the prior art, in manufacturing process poor operability, poor reliability.Bearing shell and gap of main reinforcement can not be adjusted, because the restriction of manufacturing technology, bearing shell and main shaft need singly be joined, and machine tool accuracy, processing location, cutter and human factor influence cause the bearing shell low precision greatly in process, and be yielding, is not easy to assembling and maintenance.
Summary of the invention: the object of the present invention is to provide a kind of accurate tapered sleeve bearing shell processing method, its stable manufacturing process performance is good, the reliability height, be convenient to guarantee the bearing shell precision, certain elasticity is arranged, bearing shell and gap of main reinforcement can be adjusted, be convenient to assembling and maintenance, workable.
Formation of the present invention: its processing method is: rough turn male cone (strobilus masculinus), both ends of the surface, endoporus, recrystallization annealing is handled, the finish turning male cone (strobilus masculinus), endoporus, the mill both ends of the surface, the corase grind endoporus, stay mill surplus 0.50mm car male cone (strobilus masculinus) and annular groove, stay mill surplus 0.5mm, roughly grind 1: 7.5 male cone (strobilus masculinus), stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove, processing fuel feed hole, stabilizing annealing, accurate mill both ends of the surface, grind both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus), male cone (strobilus masculinus) smear test contact rate 〉=80%, the relief grinding annular groove, model pincers worker refine profile is removed the oxide skin that the line cutting produces.
Recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.
Compared with prior art, the present invention is through the characteristic of conscientiously studying part and the particularity of instructions for use and tin bronze alloys material, when designing and manufacturing technique, according to this design of part and operating characteristic, for reducing machining stress and obtaining certain elastic properties of materials and stability, specially after roughing, arranged the heat treatment step stress relief annealing one, eliminate part casting and roughing stress with this, make part obtain stability preferably. after part is embarked on journey, arranged stabilizing annealing before the Precision Machining one, make part further eliminate residual stress, and make part obtain certain elasticity. arranged three roads corase grind manufacturing procedure for obtaining good machining accuracy simultaneously, three roads correct grinding manufacturing procedure realizes the technological principle that thick fine finishining is separately carried out preferably.
In order to obtain the uniformity at bearing shell minimum wall thickness (MINI W.) place, reduce the machining stress that machining is brought, reduce distortion, the formation of bearing shell dynamic pressure oil pocket when helping assembling.Adopt the axial circular arc oil-break of 4-R5.5 groove in twice threading processing bearing shell profile of advanced digital control wire-electrode cutting technology and the hole, and designed special-purpose bearing shell positioning process equipment, make the position steady quality of being processed, form and position tolerance precision height, good stability.Overcome traditional processing the process of axial circular arc oil-break groove and cause that part quality instability, human factor influence greatly, processing back residual stress is bigger with universal milling machine metal cutting processing profile, slotting machine, bearing shell is prone to the defective of irregular distortion.For obtaining good location datum level, the line cutting processing of refining surface, arranged datum level is ground and the polishes refine of twice instrument pincers worker operation, adopt structure can rise to grind when finish grinding male cone (strobilus masculinus) again and use axle than advanced and the high plastics of positioning accuracy, overcome common mill and fit clearance has been arranged with axle bearing shell and axle, the shortcoming of positioning accuracy difference, part location clamping force is uncontrollable, thereby has improved the repetitive positioning accuracy of processing parts.
Stable manufacturing process performance of the present invention is good, and the reliability height is convenient to guarantee the bearing shell precision, and certain elasticity is arranged, and bearing shell and gap of main reinforcement can be adjusted, and is convenient to assembling and maintenance, and is workable.
Description of drawings:
Fig. 1 is accurate tapered sleeve bearing shell structural representation;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is a process chart.
Among the figure 1, fabrication hole, 2, the oil-break groove, 3, fuel feed hole, 4, male cone (strobilus masculinus), 5, annular groove.
The specific embodiment:
Referring to Fig. 1-3, formation of the present invention: its processing method is: rough turn male cone (strobilus masculinus) 4, both ends of the surface, endoporus, recrystallization annealing is handled, the finish turning male cone (strobilus masculinus), endoporus, mill both ends of the surface, corase grind endoporus, stay mill surplus 0.50mm, car male cone (strobilus masculinus) 4 and annular groove 5 stay mill surplus 0.5mm, roughly grind 1: 7.5 male cone (strobilus masculinus) 4, stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove 2, processing fuel feed hole 3, stabilizing annealing, accurate mill both ends of the surface, grind both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus) 4, male cone (strobilus masculinus) smear test contact rate 〉=80%, relief grinding annular groove 5, model pincers worker refine profile is removed the oxide skin that the line cutting produces.
Recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.

Claims (2)

1. accurate tapered sleeve bearing shell processing method, it is characterized in that: its processing method is: rough turn male cone (strobilus masculinus) (4), both ends of the surface, endoporus, recrystallization annealing is handled, the finish turning male cone (strobilus masculinus), endoporus, mill both ends of the surface, corase grind endoporus, stay mill surplus 0.50mm, car male cone (strobilus masculinus) (4) and annular groove (5) stay mill surplus 0.5mm, roughly grind 1: 7.5 male cone (strobilus masculinus) (4), stay mill amount 0.20mm, digital control wire-electrode cutting profile and oil-break groove (2), processing fuel feed hole (3), stabilizing annealing, accurate mill both ends of the surface, grind both ends of the surface, correct grinding endoporus, accurate mill male cone (strobilus masculinus) (4), male cone (strobilus masculinus) smear test contact rate 〉=80%, relief grinding annular groove (5), model pincers worker refine profile is removed the oxide skin that the line cutting produces.
2. accurate tapered sleeve bearing shell processing method according to claim 1 is characterized in that: recrystallization annealing is handled, and temperature is controlled at 540-550 ℃; Stabilizing annealing, temperature are controlled at 220-240 ℃.
CN2010105935498A 2010-12-17 2010-12-17 Processing method of precise taper sleeve bearing bush Active CN102091912B (en)

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CN102091912B CN102091912B (en) 2012-08-08

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273277A (en) * 2013-06-14 2013-09-04 沈阳飞机工业(集团)有限公司 Method for machining regulating ring part
CN103464981A (en) * 2013-09-16 2013-12-25 南车戚墅堰机车有限公司 Novel thin-walled taper sleeve machining method
CN103495844A (en) * 2013-10-14 2014-01-08 南车戚墅堰机车有限公司 Machining technology for high-precision outer conical surface thin wall sleeve
CN103586644A (en) * 2013-11-25 2014-02-19 江苏星河阀门有限公司 Method for machining outer conical precision thin-wall part
CN106670750A (en) * 2017-02-13 2017-05-17 江苏亿鑫齿轮制造有限公司 Manufacturing process of 3.5 cun grinding wheel installation receiving disc of gear grinding machine
CN107838638A (en) * 2017-11-03 2018-03-27 重庆跃进机械厂有限公司 A kind of large thin-wall bearing shell Anti-deformation forming method
CN108581566A (en) * 2018-05-30 2018-09-28 昆山名威精密工业有限公司 A kind of processing unit (plant) and its processing technology of automobile engine eccentric wheel
CN110842487A (en) * 2019-11-28 2020-02-28 中国航发沈阳黎明航空发动机有限责任公司 Machining method of precise valve shaft
CN111230407A (en) * 2019-09-24 2020-06-05 浙江五洲新春集团股份有限公司 Large-diameter conical sleeve machining process
CN111876777A (en) * 2020-07-24 2020-11-03 沈阳富创精密设备有限公司 Manufacturing process of etching equipment restraint ring
CN112935938A (en) * 2021-02-05 2021-06-11 一重集团(黑龙江)重工有限公司 Method for improving arc contact rate
CN113245794A (en) * 2021-05-30 2021-08-13 东风汽车车轮随州有限公司 Gapless elastic bearing bush of rolling die and machining method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110270800B (en) * 2019-07-04 2021-02-12 哈尔滨汽轮机厂有限责任公司 Machining method of vortex-enhanced bearing

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WO1999024631A1 (en) * 1997-11-10 1999-05-20 Toto Ltd. Forged brass product and cut brass product having high corrosion resistance and method of manufacturing the same
US20040123461A1 (en) * 2002-12-31 2004-07-01 Chih-Ching Hsien Method for making a gear with 90-180 teeth
KR100685048B1 (en) * 2005-12-26 2007-02-20 주식회사 포스코 Method of manufacturing grooved roll for rough rolling
CN101579804A (en) * 2009-06-04 2009-11-18 航天材料及工艺研究所 Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line
CN101817141A (en) * 2010-04-22 2010-09-01 江苏迪邦三星轴承有限公司 Processing technique for bearing of megawatt wind power speed increasing gear box

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024631A1 (en) * 1997-11-10 1999-05-20 Toto Ltd. Forged brass product and cut brass product having high corrosion resistance and method of manufacturing the same
US20040123461A1 (en) * 2002-12-31 2004-07-01 Chih-Ching Hsien Method for making a gear with 90-180 teeth
KR100685048B1 (en) * 2005-12-26 2007-02-20 주식회사 포스코 Method of manufacturing grooved roll for rough rolling
CN101579804A (en) * 2009-06-04 2009-11-18 航天材料及工艺研究所 Integral forming method of large size thin-walled titanium alloy cylindrical part without welding line
CN101817141A (en) * 2010-04-22 2010-09-01 江苏迪邦三星轴承有限公司 Processing technique for bearing of megawatt wind power speed increasing gear box

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273277B (en) * 2013-06-14 2015-10-14 沈阳飞机工业(集团)有限公司 A kind of processing method of adjustable ring part
CN103273277A (en) * 2013-06-14 2013-09-04 沈阳飞机工业(集团)有限公司 Method for machining regulating ring part
CN103464981A (en) * 2013-09-16 2013-12-25 南车戚墅堰机车有限公司 Novel thin-walled taper sleeve machining method
CN103495844A (en) * 2013-10-14 2014-01-08 南车戚墅堰机车有限公司 Machining technology for high-precision outer conical surface thin wall sleeve
CN103586644A (en) * 2013-11-25 2014-02-19 江苏星河阀门有限公司 Method for machining outer conical precision thin-wall part
CN103586644B (en) * 2013-11-25 2016-08-17 江苏星河阀门有限公司 The processing method of outer conical precision thin-wall part
CN106670750A (en) * 2017-02-13 2017-05-17 江苏亿鑫齿轮制造有限公司 Manufacturing process of 3.5 cun grinding wheel installation receiving disc of gear grinding machine
CN107838638B (en) * 2017-11-03 2019-08-16 重庆跃进机械厂有限公司 A kind of large thin-wall bearing shell Anti-deformation forming method
CN107838638A (en) * 2017-11-03 2018-03-27 重庆跃进机械厂有限公司 A kind of large thin-wall bearing shell Anti-deformation forming method
CN108581566A (en) * 2018-05-30 2018-09-28 昆山名威精密工业有限公司 A kind of processing unit (plant) and its processing technology of automobile engine eccentric wheel
CN108581566B (en) * 2018-05-30 2023-10-27 昆山名威精密工业有限公司 Machining device and machining process for eccentric wheel of automobile engine
CN111230407A (en) * 2019-09-24 2020-06-05 浙江五洲新春集团股份有限公司 Large-diameter conical sleeve machining process
CN111230407B (en) * 2019-09-24 2021-07-16 浙江五洲新春集团股份有限公司 Large-diameter conical sleeve machining process
CN110842487A (en) * 2019-11-28 2020-02-28 中国航发沈阳黎明航空发动机有限责任公司 Machining method of precise valve shaft
CN110842487B (en) * 2019-11-28 2021-07-09 中国航发沈阳黎明航空发动机有限责任公司 Machining method of precise valve shaft
CN111876777A (en) * 2020-07-24 2020-11-03 沈阳富创精密设备有限公司 Manufacturing process of etching equipment restraint ring
CN112935938A (en) * 2021-02-05 2021-06-11 一重集团(黑龙江)重工有限公司 Method for improving arc contact rate
CN113245794A (en) * 2021-05-30 2021-08-13 东风汽车车轮随州有限公司 Gapless elastic bearing bush of rolling die and machining method thereof

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