CN105965351B - A kind of heat resisting steel ring raceways grinding process - Google Patents
A kind of heat resisting steel ring raceways grinding process Download PDFInfo
- Publication number
- CN105965351B CN105965351B CN201610339797.7A CN201610339797A CN105965351B CN 105965351 B CN105965351 B CN 105965351B CN 201610339797 A CN201610339797 A CN 201610339797A CN 105965351 B CN105965351 B CN 105965351B
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- China
- Prior art keywords
- grinding
- raceway groove
- steel ring
- resisting steel
- ring raceways
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A kind of heat resisting steel ring raceways grinding process.The present invention relates to a kind of grinding process.In order to solve the direct pickling after corase grinding raceway groove and fine grinding ditch procedure of heat-resisting steel ring, carbide falls off the present invention, in the tiny pit that ring raceways surface is formed, the problem of " white point " can be formed after bite.The heat resisting steel ring raceways grinding process is as follows：Step 1: corase grinding raceway groove；Step 2: fine grinding raceway groove；Step 3: once slightly grinding raceway groove；Step 4: pickling；Step 5: dehydrogenation；Step 6: decorations with nothing left；Step 7: flaw detection；Step 8: secondary slightly grind raceway groove；Step 9: lappingout raceway groove.The present invention is for being ground lasso.
Description
Technical field
The present invention relates to a kind of grinding process, and in particular to a kind of heat resisting steel ring raceways grinding process.
Background technology
Existing heat-resisting steel ring technological process is：Roughly grind raceway groove → fine grinding raceway groove → pickling → dehydrogenation → decorations → flaw detection with nothing left
→ slightly grind raceway groove → lappingout raceway groove.However, carbide particle is dispersed with inside heat-resisting steel material, (the especially needle in grinding process
The lasso larger to Contact stress R), because grinding force is excessive, some carbide fall off, and are formed on ring raceways surface tiny recessed
Hole.When pickling, pickle can form bite layer (white point) after permeating this tiny pit, see Fig. 1, pickling after lappingout raceway groove
Corrosion layer still exists, and channel surface is caused " white point " occur.Therefore, the generation of ring raceways " white point " was ground with raceway groove
Journey, acid cleaning process have direct relationship.The generation of " white point " makes yield rate only up to 50%, seriously affect bearing deliver into
Degree, constrains the Production of bearing period.
Invention content
For the present invention in order to solve the direct pickling after corase grinding raceway groove and fine grinding ditch procedure of heat-resisting steel ring, carbide is de-
It falls, in the tiny pit that ring raceways surface is formed, the problem of " white point " can be formed after bite, and then proposes a kind of resistance to
Hot steel ring raceway groove grinding process.
The present invention adopts the technical scheme that solve above-mentioned technical problem：
A kind of heat resisting steel ring raceways grinding process, processing step are as follows：
Step 1: corase grinding raceway groove；Step 2: fine grinding raceway groove；Step 3: once slightly grinding raceway groove；Step 4: pickling；Step
Five, dehydrogenation；Step 6: decorations with nothing left；Step 7: flaw detection；Step 8: secondary slightly grind raceway groove；Step 9: lappingout raceway groove.
Further, raceway groove is roughly ground in step 1, when grinding allowance Ju Final mill ditch diameter sizes there remains 0.12-0.15mm
When, grinding and feeding speed is adjusted to 1 μm/s, the amount of feeding≤50 μm by originally roughly grinding 2-3 μm cut/s.
Further, the grinding and feeding speed that raceway groove is refined in step 2 is 1 μm/s, the amount of feeding≤50 μm.
Further, for once slightly grinding raceway groove stays grinding amount 0.007mm~0.008mm when refining raceway groove in step 2.
Further, check that channel surface reaches zero defect, spent without grinding wheel after the completion of step 3.
Further, check that channel surface reaches zero defect, spent without grinding wheel after the completion of step 9.
The advantageous effect that the present invention includes compared with prior art is：
One, it is increased before pickling due to the present invention after once slightly grinding ditch procedure, once slightly grinds raceway groove by grinding process
The tiny pit generated afterwards is greasy flat so that steel ring channel surface does not have tiny pit, would not be generated after postorder pickling
" white point ", product qualification rate reaching 100%.
Two, using the technique of the present invention in 14 years 7~September parts, processing about 150 sets of XX profile shaft bearing rings of 3 batches are completed altogether,
After ring raceways lappingout, surface does not occur " white point " phenomenon.It is directed to the existing heat-resisting steel product of company at present, it will similar lasso ditch
The process of the road grinding overall application present invention, channel surface white-spot defects are effectively solved, extremely from September, 2014
There is not white point after once slightly grinding raceway groove in the present, while improving channel surface quality.
Description of the drawings
Fig. 1 is the ring raceways surface effect figure processed using prior art step, (" white point " occurs in workpiece surface)；
Fig. 2 is using the ring raceways surface effect figure of present invention process step processing, and (workpiece surface does not occur " white
Point ").
Specific implementation mode
Specific implementation mode one：Embodiment is described with reference to Fig. 2, and the processing step of present embodiment is as follows：
Step 1: corase grinding raceway groove；Step 2: fine grinding raceway groove；Step 3: once slightly grinding raceway groove；Step 4: pickling；Step
Five, dehydrogenation；Step 6: decorations with nothing left；Step 7: flaw detection；Step 8: secondary slightly grind raceway groove；Step 9: lappingout raceway groove.
In present embodiment, raceway groove is roughly ground in step 1, when grinding allowance there remains 0.12- away from mill ditch diameter size eventually
When 0.15mm, grinding and feeding speed is adjusted to 1 μm/s, the amount of feeding≤50 μm by originally roughly grinding 2-3 μm cut/s.Other steps with
Specific implementation mode one is identical.
In present embodiment, the grinding and feeding speed that raceway groove is refined in step 2 is 1 μm/s, the amount of feeding≤50 μm.It is other
Step is same as the specific embodiment one.
When refining raceway groove in present embodiment, in step 2 for it is primary slightly grind raceway groove stay grinding amount 0.007mm~
0.008mm.Other steps are same as the specific embodiment one.
Check that channel surface reaches zero defect, spent without grinding wheel in present embodiment, after the completion of step 3, so that channel surface
Rounding is uniform.Other steps are same as the specific embodiment one.
Check that channel surface reaches zero defect, spent without grinding wheel in present embodiment, after the completion of step 9, so that channel surface
Rounding is uniform.Other steps are same as the specific embodiment one.
Claims (5)
1. a kind of heat resisting steel ring raceways grinding process, it is characterised in that：The heat resisting steel ring raceways grinding process is as follows：Step
Rapid one, raceway groove is roughly ground；When grinding allowance there remains 0.12-0.15mm away from whole mill ditch diameter size, grinding and feeding speed is by originally
It roughly grinds the 2-3 μm/s cut and is adjusted to 1 μm/s, the amount of feeding≤50 μm；Step 2: fine grinding raceway groove；Step 3: once slightly grinding raceway groove；
Step 4: pickling；Step 5: dehydrogenation；Step 6: decorations with nothing left；Step 7: flaw detection；Step 8: secondary slightly grind raceway groove；Step 9:
Lappingout raceway groove.
2. a kind of heat resisting steel ring raceways grinding process according to claim 1, it is characterised in that：It is refined in the step 2
The grinding and feeding speed of raceway groove is 1 μm/s, the amount of feeding≤50 μm.
3. a kind of heat resisting steel ring raceways grinding process according to claim 1, it is characterised in that：It is refined in the step 2
For once slightly grinding raceway groove stays grinding amount 0.007mm~0.008mm when raceway groove.
4. a kind of heat resisting steel ring raceways grinding process according to claim 1, it is characterised in that：After the completion of the step 3
Check that channel surface reaches zero defect, spent without grinding wheel.
5. a kind of heat resisting steel ring raceways grinding process according to claim 1, it is characterised in that：After the completion of the step 9
Check that channel surface reaches zero defect, spent without grinding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339797.7A CN105965351B (en) | 2016-05-20 | 2016-05-20 | A kind of heat resisting steel ring raceways grinding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339797.7A CN105965351B (en) | 2016-05-20 | 2016-05-20 | A kind of heat resisting steel ring raceways grinding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105965351A CN105965351A (en) | 2016-09-28 |
| CN105965351B true CN105965351B (en) | 2018-07-31 |
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| CN201610339797.7A Active CN105965351B (en) | 2016-05-20 | 2016-05-20 | A kind of heat resisting steel ring raceways grinding process |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927716A (en) * | 2017-05-23 | 2018-12-04 | 鼎奇(天津)主轴科技有限公司 | A kind of grinding process method of main shaft bearing spacer ring |
| CN109605177A (en) * | 2018-12-11 | 2019-04-12 | 贵州天马虹山轴承有限公司 | A kind of processing technology controlling bearing inside/outside lasso ball race grinding stress |
| CN114029822A (en) * | 2021-11-23 | 2022-02-11 | 中国航发哈尔滨轴承有限公司 | Method for machining finish grinding channel of outer ring of high-precision long-cylinder double-row angular contact ball bearing |
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| CN101130229A (en) * | 2006-08-22 | 2008-02-27 | 北京有色金属研究总院 | Double-side polishing method for gallium phosphide wafer |
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| 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 |
| CN104191170A (en) * | 2014-08-15 | 2014-12-10 | 浙江环宇轴承有限公司 | Production process for conical roller bearing |
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| JP6018728B2 (en) * | 2012-09-19 | 2016-11-02 | 株式会社ノリタケカンパニーリミテド | Super finishing method |
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| CN101130229A (en) * | 2006-08-22 | 2008-02-27 | 北京有色金属研究总院 | Double-side polishing method for gallium phosphide wafer |
| 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 |
| CN103692302A (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 excircle grinding process |
| 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 |
| CN104191170A (en) * | 2014-08-15 | 2014-12-10 | 浙江环宇轴承有限公司 | Production process for conical roller bearing |
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| CN105965351A (en) | 2016-09-28 |
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