CN102518677A - Technology for processing outer ring of automobile gearbox bearing - Google Patents
Technology for processing outer ring of automobile gearbox bearing Download PDFInfo
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- CN102518677A CN102518677A CN2011104361062A CN201110436106A CN102518677A CN 102518677 A CN102518677 A CN 102518677A CN 2011104361062 A CN2011104361062 A CN 2011104361062A CN 201110436106 A CN201110436106 A CN 201110436106A CN 102518677 A CN102518677 A CN 102518677A
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Abstract
The invention discloses a technology for processing an outer ring of an automobile gearbox bearing. The technology provided by the invention comprises the following steps of 1, preparing a blank, 2, carrying out heat treatment quenching of the blank, 3, carrying out coarse grinding of double end surfaces of the blank, 4, grinding the double end surfaces, 5, carrying out coarse grinding of the periphery of the blank, 6, carrying out snap groove lathing processing, wherein a cubic boron nitride lathe tool is adopted; a lathing rate is in a range of 180 to 260m/min; a feed rate is in a range of 0.05 to 0.15mm/r; the milling depth is in a range of 1.3 to 3mm; and a wet lathing way is adopted, 7, carrying out accurate grinding of the periphery, and 8, processing a rollaway nest. The technology provided by the invention greatly improves the precision of a size, a shape and a position of a bearing outer ring. The technology provided by the invention also greatly improves the precision of a snap groove of a bearing outer ring. Therefore, the technology provided by the invention improves assembling precision of a bearing of a gearbox, reduces deformation of a stop ring under stress, improves stop ring reliability and prolongs a stop ring service life.
Description
Technical field
The present invention relates to a kind of processing technology of bearing outer ring, particularly relate to a kind of technology of automobile gearbox bearing outer ring.
Background technique
In the existing technology, the automobile bearing outer ring processes according to following steps: 1, prepare blank; 2, Vehicle Processing locking groove; 3, heat-treatment quenching; 4, Double End grinding; 5, cylindrical centerless type grinding; 6, processing raceway.
Because locking groove is Vehicle Processing before blank quenches, heat-treatment quenching, so heat treatment deformation then and back operation cause final size, shape, the position of locking groove all bad to the destruction of benchmark.Along with high-grade automobile gearbox improves constantly what bearing parts required, the requirement of bearing locking groove position and shape is also improved constantly.If the precision of locking groove is lower, then possibly took place to cause stop ring to damage, and then damage gearbox because of the perpendicularity of locking groove side bus and lasso shaft axis is overproof.
Therefore those skilled in the art are devoted to develop a kind of high automobile gearbox bearing outer ring processing technology of size, shape, positional accuracy of locking groove.
Summary of the invention
Because the above-mentioned defective of existing technology, technical problem to be solved by this invention provides a kind of high automobile gearbox bearing outer ring processing technology of size, shape, positional accuracy of locking groove.
For realizing above-mentioned purpose, the invention provides a kind of automobile gearbox bearing outer ring processing technology, may further comprise the steps: blank is prepared in (1); (2) heat-treatment quenching; (3) corase grind Double End; (4) face machined flat; (5) corase grind cylindrical; (6) Vehicle Processing locking groove: adopt the cubic boron nitride lathe tool, cutting speed is 180m/min～260 m/min, and the amount of feed is 0.05mm/r～0.15mm/r, and back engagement of the cutting edge is 1.3mm～3mm; Cutting state is the wet type cutting; (7) correct grinding cylindrical; (8) processing raceway.
Preferable, in the step (1), the blank external diameter is Φ 60～Φ 80mm, and width is 16～22mm, and hardness is HRB89-91; In the step (2), quenching temperature is 830 ℃～850 ℃, and the quenching oil temperature is 100 ℃～120 ℃, and tempering temperature is 165 ℃～180 ℃, and after the quenching, part hardness is HRC60～65; In the step (5), adopt the centerless grinding machine grinding, the work centre height is 19mm～24mm, and the guide wheel rotating speed is 50 r/min～100r/min, the guide wheel tilt angle: 1.5 °～2.5 °.
Preferable, in the step (2), quenching temperature is 840 ℃, and the quenching oil temperature is 110 ℃, and tempering temperature is 170 ℃; In the step (5), adopt the centerless grinding machine grinding, the work centre height is 22mm, and the guide wheel rotating speed is 80 r/min, the guide wheel tilt angle: 2 °; In the step (6), cutting speed is 220m/min, and the amount of feed is 0.1mm/r, and back engagement of the cutting edge is 1.8mm.
The invention has the beneficial effects as follows:
(1) bearing outer ring that the present invention processed, locking groove outward appearance light, the shape rule, the perpendicularity of locking groove side bus and lasso shaft axis can error can control to 1/3 of tratitional technology, promptly less than in 1 degree;
(2) the position degree variable quantity of locking groove side and bearing face can control to 1/4 of tratitional technology, promptly guarantees in 0.04mm;
(3) locking groove vary in diameter amount can control to 1/3 of tratitional technology, promptly guarantees in 0.2mm.
(4) the present invention can effectively improve the assembly precision of gearbox bearing, reduces the distortion of stop ring when stressed, improves its reliability, increases the service life;
(5) any surface finish of the present invention, roughness are better than 3～5 times of tratitional technologys, guarantee locking groove surface non-oxidation layer, and the impurity of having avoided simultaneously not cleaning up after the heat treatment adheres to, and avoids impurity to bring the gearbox part of damage into.
Description of drawings
Fig. 1 is the structural representation of automobile gearbox bearing outer ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As shown in Figure 1, a kind of automobile gearbox bearing outer ring processing technology may further comprise the steps:
(1) prepares blank 1;
(2) heat-treatment quenching;
(3) adopt double-ended grinding machine to roughly grind two end faces of bearing blank, the workpiece flow is not more than 20m/min;
(4) face machined flat;
(5) corase grind cylindrical;
(6) the Vehicle Processing locking groove 3;
(7) utilize centerless grinding machine correct grinding cylindrical;
(8) grinding, ultra smart raceway 2.
In the present embodiment, the blank external diameter is Φ 70mm, and width is 18mm, and hardness is HRB90.In other embodiments; The blank external diameter also is other values between Φ 60～Φ 80mm, and like Φ 60, Φ 65, Φ 68, Φ 72, Φ 76, Φ 80 etc., width also can be other values between 16～22mm; As 16,20,22mm etc.; Hardness also can be other values between the HRB89-91, like HRB89 or HRB91, to reach essentially identical technique effect.
In the present embodiment, step (2) adopts the continuous mesh belt type hardening furnace, and quenching temperature is 840 ℃, and the quenching oil temperature is 110 ℃, and tempering temperature is 170 ℃, and after the quenching, part hardness is HRC60～65.In other embodiments; Quenching temperature also can be other values between 830 ℃～850 ℃, and as 830 ℃ or 850 ℃, the quenching oil temperature also is other values between 100 ℃～120 ℃; As 100 ℃, 105 ℃, 120 ℃ etc.; Tempering temperature also can be other values between 165 ℃～180 ℃, as 165 ℃, 175 ℃, 180 ℃ etc., to reach essentially identical technique effect.
In the step (4), adopt semi-automatic two-lap lapping machine to grind the end face of blank, lapping machine upper cylinder pressure is 1.0MPa～1.2MPa, and following oil cylinder working-pressure is not more than 0.3Mpa.
In the step (5), adopt the centerless grinding machine grinding, the work centre height is 22mm, and the guide wheel rotating speed is 80 r/min, and the guide wheel tilt angle is 2 °.In other embodiments; The work centre height also can be other values between 19mm～24mm, and as 19,20,21,23,24mm etc., the guide wheel rotating speed also can be other values between 50 r/min～100r/min; As 50,60,65,73,85,94,100r/min etc.; The guide wheel tilt angle also can be other values between 1.5 °～2.5 °, as 1.5 °, 1.8 °, 2.1 °, 2.3 °, 2.5 ° etc., to reach essentially identical technique effect.
In the step (6), adopt the cubic boron nitride lathe tool, cutting speed is 220m/min, and the amount of feed is 0.1mm/r, and back engagement of the cutting edge is 1.8mm, and cutting state is the wet type cutting.In other embodiments; Cutting speed also can be other values between 180m/min～260 m/min; As 180,190,205,218,230,245,250,260m/min etc.; The amount of feed also can be other values between 0.05mm/r～0.15mm/r, and as 0.05,0.08,0.12,0.14,0.15mm/r etc., back engagement of the cutting edge also can be other values between 1.3mm～3mm; As 1.3,1.4,1.7,1.9,2.0,2.3,2.5,2.8,3.0mm etc., to reach essentially identical technique effect.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. automobile gearbox bearing outer ring processing technology is characterized in that: may further comprise the steps:
(1) prepares blank;
(2) heat-treatment quenching;
(3) corase grind Double End;
(4) face machined flat;
(5) corase grind cylindrical;
(6) Vehicle Processing locking groove: adopt the cubic boron nitride lathe tool, cutting speed is 180m/min～260 m/min, and the amount of feed is 0.05mm/r～0.15mm/r, and back engagement of the cutting edge is 1.3mm～3mm; Cutting state is the wet type cutting;
(7) correct grinding cylindrical;
(8) processing raceway.
2. automobile gearbox bearing outer ring processing technology as claimed in claim 1 is characterized in that: in the step (1), the blank external diameter is Φ 60～Φ 80mm, and width is 16～22mm, and hardness is HRB89-91;
In the step (2), quenching temperature is 830 ℃～850 ℃, and the quenching oil temperature is 100 ℃～120 ℃, and tempering temperature is 165 ℃～180 ℃, and after the quenching, part hardness is HRC60～65;
In the step (5), adopt the centerless grinding machine grinding, the work centre height is 19mm～24mm, and the guide wheel rotating speed is 50 r/min～100r/min, the guide wheel tilt angle: 1.5 °～2.5 °.
3. according to claim 1 or claim 2 automobile gearbox bearing outer ring processing technology is characterized in that:
In the step (2), quenching temperature is 840 ℃, and the quenching oil temperature is 110 ℃, and tempering temperature is 170 ℃;
In the step (5), adopt the centerless grinding machine grinding, the work centre height is 22mm, and the guide wheel rotating speed is 80 r/min, and the guide wheel tilt angle is 2 °;
In the step (6), cutting speed is 220m/min, and the amount of feed is 0.1mm/r, and back engagement of the cutting edge is 1.8mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104361062A CN102518677A (en) | 2011-12-23 | 2011-12-23 | Technology for processing outer ring of automobile gearbox bearing |
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| CN2011104361062A CN102518677A (en) | 2011-12-23 | 2011-12-23 | Technology for processing outer ring of automobile gearbox bearing |
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| CN102518677A true CN102518677A (en) | 2012-06-27 |
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| CN2011104361062A Pending CN102518677A (en) | 2011-12-23 | 2011-12-23 | Technology for processing outer ring of automobile gearbox bearing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231290A (en) * | 2013-04-26 | 2013-08-07 | 宁波市镇海银球轴承有限公司 | Technology for machining roller bearing outer ring for drafting system of textile machine |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN103939477A (en) * | 2014-05-14 | 2014-07-23 | 浙江优特轴承有限公司 | Machining method of assembly line of angular contact ball bearing sleeve ring |
| CN104295612A (en) * | 2014-10-22 | 2015-01-21 | 德清恒丰机械有限公司 | Automobile bearing outer ring forge piece |
| CN105937552A (en) * | 2016-06-30 | 2016-09-14 | 常州光洋轴承股份有限公司 | Flanged cylindrical roller bearing used for gearbox and preparation process for outer ring thereof |
| CN105950838A (en) * | 2016-06-02 | 2016-09-21 | 江苏丰东热处理及表面改性工程技术研究有限公司 | Composite heat treatment technology for cylindrical roller bearing ferrule of automobile transmission |
| CN106239268A (en) * | 2016-08-22 | 2016-12-21 | 怀宁吉利来精密机械科技有限公司 | A kind of grinding process of oscillating bearing inner ring |
| CN115026497A (en) * | 2022-06-20 | 2022-09-09 | 奇瑞万达贵州客车股份有限公司 | Flexible assembling and welding tool for frameworks on two sides of vehicle body |
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| WO1999034023A1 (en) * | 1997-12-26 | 1999-07-08 | Nsk Ltd. | Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| CN101576123A (en) * | 2008-05-09 | 2009-11-11 | 嵊州市美亚特种轴承厂 | Process for manufacturing bearing ring |
| CN101812658A (en) * | 2009-09-28 | 2010-08-25 | 洛阳Lyc轴承有限公司 | Double carburization protecting process in manufacture of bearing outer ring of squirrel-cage elasticity support |
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Patent Citations (3)
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| WO1999034023A1 (en) * | 1997-12-26 | 1999-07-08 | Nsk Ltd. | Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| CN101576123A (en) * | 2008-05-09 | 2009-11-11 | 嵊州市美亚特种轴承厂 | Process for manufacturing bearing ring |
| CN101812658A (en) * | 2009-09-28 | 2010-08-25 | 洛阳Lyc轴承有限公司 | Double carburization protecting process in manufacture of bearing outer ring of squirrel-cage elasticity support |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231290A (en) * | 2013-04-26 | 2013-08-07 | 宁波市镇海银球轴承有限公司 | Technology for machining roller bearing outer ring for drafting system of textile machine |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN103692303B (en) * | 2013-12-23 | 2016-02-10 | 河南金鑫精密轴承制造有限公司 | Accurate angular contact ball bearing inner ring grinding process |
| CN103939477A (en) * | 2014-05-14 | 2014-07-23 | 浙江优特轴承有限公司 | Machining method of assembly line of angular contact ball bearing sleeve ring |
| CN104295612A (en) * | 2014-10-22 | 2015-01-21 | 德清恒丰机械有限公司 | Automobile bearing outer ring forge piece |
| CN105950838A (en) * | 2016-06-02 | 2016-09-21 | 江苏丰东热处理及表面改性工程技术研究有限公司 | Composite heat treatment technology for cylindrical roller bearing ferrule of automobile transmission |
| CN105950838B (en) * | 2016-06-02 | 2018-01-09 | 江苏丰东热处理及表面改性工程技术研究有限公司 | A kind of composite heat treating process of automobile gearbox cylinder roller bearing ring |
| CN105937552A (en) * | 2016-06-30 | 2016-09-14 | 常州光洋轴承股份有限公司 | Flanged cylindrical roller bearing used for gearbox and preparation process for outer ring thereof |
| CN106239268A (en) * | 2016-08-22 | 2016-12-21 | 怀宁吉利来精密机械科技有限公司 | A kind of grinding process of oscillating bearing inner ring |
| CN115026497A (en) * | 2022-06-20 | 2022-09-09 | 奇瑞万达贵州客车股份有限公司 | Flexible assembling and welding tool for frameworks on two sides of vehicle body |
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Application publication date: 20120627 |