CN1535793A - One-step fixture-mounted grinding process of double rolling groove of bearing outer ring for railway wagon - Google Patents
One-step fixture-mounted grinding process of double rolling groove of bearing outer ring for railway wagon Download PDFInfo
- Publication number
- CN1535793A CN1535793A CNA031162703A CN03116270A CN1535793A CN 1535793 A CN1535793 A CN 1535793A CN A031162703 A CNA031162703 A CN A031162703A CN 03116270 A CN03116270 A CN 03116270A CN 1535793 A CN1535793 A CN 1535793A
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- Prior art keywords
- raceway
- grinding
- outer ring
- ball track
- bearing outer
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention relates to an one-step clamping-grinding process of double track of bearing outer ring for railway waggon. It adopts NC full-automatic system, and also includes selection of technological parameter; curve correction of ball track A and ball track B of two sides of the outer ring; grinding ball track A and grinding ball track B and reciprocating oscillation movement of forming sandstone wheel when which is votated for grinding ball track, and its reciprocating oscillation direction is that when the ball track A is ground it is identical to the taper direction of ball track A and when the ball track B is ground, it is identical to the taper direction of ball track B. Said invention can greatly raise production efficiency and greatly raise machining accuracy.
Description
One, technical field:
The present invention relates to a kind of transportation and communication bearing manufacturing process, particularly relate to the grinding process of the two raceways in railway truck bearing outer ring.
Two, background technology:
At present, the factory of domestic railway bearing to railway bearing outer ring two raceway grindings all adopt the secondary clamping, the old technology of secondary grinding.It is the A raceway of first grinding outer ring, again processing work is changed the B raceway of face (standing up) grinding outer ring, because magnetic clamp is adopted in the bearing outer ring grinding, it is to utilize plane of outer ring and outer ring external diameter a certain section as datum level, therefore, the parallel error of two end faces of outer ring and vertical difference to foreign round directly have influence on the concentricity of two raceways and run-out error to foreign round, simultaneously because the secondary clamping, the out-of-roundness of outer round surface and clean-up performance also will inevitably produce the clamping error, and therefore traditional processing technology is difficult to guarantee to reach high-precision requirement.
Three, summary of the invention:
Technical problem to be solved by this invention: a kind of two clamping grinding process of raceway in railway truck bearing outer ring that overcome above-mentioned defective, raising machining accuracy are provided.
The technical scheme that overcomes the above problems: adopt the numerical control fully automatic system, it is characterized in that: also comprise selection of process parameters; The curve correction of both sides, outer ring A raceway, B raceway; Grinding A raceway, grinding B raceway; Formed grinding wheel is done the reciprocating vibration motion when the raceway grinding is rotated, its reciprocating vibration direction is consistent with A raceway taper direction when grinding A raceway, and is consistent with B raceway taper direction during grinding B raceway.
The beneficial effect of patent of the present invention: owing to reduced the clamping time No. one time, thereby improved production efficiency greatly, production efficiency is brought up to 30 seconds/part from 50 seconds/part of traditional handicraft, improved machining accuracy greatly, two raceways in outer ring nonconcentricity error is to foreign round reduced, two times of offsets measuring are brought up to 5 μ m from 10 μ m of traditional handicraft, have greatly improved the social benefit and the economic benefit of enterprises of producing bearing enterprise.
Four, description of drawings:
Accompanying drawing 1 a clamping grinding A raceway processing step schematic diagram of the present invention,
Wherein: 2-location cylindrical, 3-workpiece, 4-formed grinding wheel, 12-A raceway, 14-B raceway, 15-B end face
Accompanying drawing 2 clamping grinding B raceway processing step schematic diagrames of the present invention
Five, the specific embodiment:
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, the present invention is further described with the full-automatic railway bearing outer ring raceway grinding machine of NC2 Shaft and NC Machining Test:
1) enter magnetic clamp with manipulator holding workpiece 3 location cylindricals 2 and clamp,
2) the every technological parameter in the processing of selected grinding outer ring A raceway 12, B raceway 14 is as follows:
| Project | Processing A raceway (mm) | Processing B raceway (mm) | Project | Grinding amplitude (mm) | Speed (mm/s) |
| F.F. | 15.460 | ?15.520 | Vibration | 3.00 | ??3.00 |
| Become soon | 0.300 | ?0.300 | |||
| Slightly advance | 0.050 | ?0.020 | |||
| Progress greatly | 0.050 | ?0.009 | |||
| Light advances | 0.020 | ?0.005 |
3) formed grinding wheel 4 by the curve shape of outer ring two limit raceways is modified to identical shaped curve with A raceway 12, B raceway 14;
4) center with the width of formed grinding wheel 4 is moved to the left 2mm, and grinding A raceway 12 is because the center of the width of formed grinding wheel 4 is moved to the left 2mm, so B raceway 14 does not participate in grinding;
5) behind the intact A raceway 12 of grinding, make the center of the width of formed grinding wheel 4 4mm that moves right again, grinding B raceway 14, the 2mm+2MM because the center of the width of formed grinding wheel 4 moves right is not so A raceway 12 participates in grinding;
When difference grinding A raceway 12 and B raceway 14, the formed grinding wheel 4 of rotation is done the reciprocating vibration motion, its reciprocating vibration direction: consistent with the taper direction of A raceway 12 when grinding A raceway 12, and when grinding B raceway 14, consistent with the taper direction of B raceway 14.
Claims (3)
1, the two clamping grinding process of raceway in railway truck bearing outer ring adopt the numerical control fully automatic system, it is characterized in that: also comprise selection of process parameters; The curve correction of both sides, outer ring A raceways (12), B raceway (14); Grinding A raceway (12), grinding B raceway (14); Formed grinding wheel (4) is done the reciprocating vibration motion when the raceway grinding is rotated, its reciprocating vibration direction is consistent with A raceway (12) taper direction when grinding A raceway (12), and is consistent with B raceway (14) taper direction during grinding B raceway (14).
2, two clamping grinding process of raceway in railway truck bearing according to claim 1 outer ring is characterized in that: with the middle mind-set one side shifting 2mm of the width of formed grinding wheel (4), grinding A raceway (12); Behind the intact A raceway (12) of grinding, make the middle mind-set opposite side of the width of formed grinding wheel (4) move 4mm, grinding B raceway (14) again.
3, two clamping grinding process of raceway in railway truck bearing outer ring according to claim 1, it is characterized in that: the grinding amplitude is between 2.0-4.5mm during oscillating movement, and speed is between 1.5-5mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116270 CN1270872C (en) | 2003-04-09 | 2003-04-09 | One-step fixture-mounted grinding process of double rolling groove of bearing outer ring for railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116270 CN1270872C (en) | 2003-04-09 | 2003-04-09 | One-step fixture-mounted grinding process of double rolling groove of bearing outer ring for railway wagon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1535793A true CN1535793A (en) | 2004-10-13 |
| CN1270872C CN1270872C (en) | 2006-08-23 |
Family
ID=34320298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116270 Expired - Fee Related CN1270872C (en) | 2003-04-09 | 2003-04-09 | One-step fixture-mounted grinding process of double rolling groove of bearing outer ring for railway wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1270872C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578456B (en) * | 2007-01-16 | 2011-08-31 | 日本精工株式会社 | Manufacturing method for bearing outer ring |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN103182664A (en) * | 2011-12-29 | 2013-07-03 | 上海联合滚动轴承有限公司 | Transverse reciprocating grinding method for cone angle raceway of bearing race |
| CN104493670A (en) * | 2014-12-22 | 2015-04-08 | 溧阳市超强链条制造有限公司 | Grinding method for roller groove profiles of chain riveting machine |
| CN113043124A (en) * | 2021-03-30 | 2021-06-29 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Grinding method for improving ovality of outer raceway of cylindrical roller bearing ring |
| CN114473645A (en) * | 2022-02-18 | 2022-05-13 | 西北轴承有限公司 | High-speed high-precision machining method and device for double-row cylindrical roller bearing raceway and application |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722457B (en) * | 2008-10-23 | 2014-06-04 | 杭州雷迪克汽车部件制造有限公司 | Double-channel grinding method of double-row ball bearing |
-
2003
- 2003-04-09 CN CN 03116270 patent/CN1270872C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578456B (en) * | 2007-01-16 | 2011-08-31 | 日本精工株式会社 | Manufacturing method for bearing outer ring |
| CN103182664A (en) * | 2011-12-29 | 2013-07-03 | 上海联合滚动轴承有限公司 | Transverse reciprocating grinding method for cone angle raceway of bearing race |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN102990492B (en) * | 2012-12-10 | 2014-12-10 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN104493670A (en) * | 2014-12-22 | 2015-04-08 | 溧阳市超强链条制造有限公司 | Grinding method for roller groove profiles of chain riveting machine |
| CN113043124A (en) * | 2021-03-30 | 2021-06-29 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Grinding method for improving ovality of outer raceway of cylindrical roller bearing ring |
| CN114473645A (en) * | 2022-02-18 | 2022-05-13 | 西北轴承有限公司 | High-speed high-precision machining method and device for double-row cylindrical roller bearing raceway and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1270872C (en) | 2006-08-23 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI LAIBITAI DIGITAL CONTROL MACHINE TOOL CO. Free format text: FORMER NAME OR ADDRESS: SHANGHAI LABITAI MACHINERY DEVELOPMENT CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 518 Kang Shan Road, Cambridge Industrial Area, Shanghai, Pudong Patentee after: Shanghai RABBIT CNC Machine Tools Co., Ltd. Address before: No. 518 Kang Shan Road, Cambridge Industrial Area, Shanghai, Pudong Patentee before: Laibitai Machinery Development Co., Ltd., Shanghai |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20180409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |