CN1721135A - Method of grinding, finish grinding precision bearing steel ball by using grinding oil and major cycle resin grinding wheel - Google Patents
Method of grinding, finish grinding precision bearing steel ball by using grinding oil and major cycle resin grinding wheel Download PDFInfo
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- CN1721135A CN1721135A CN 200410052932 CN200410052932A CN1721135A CN 1721135 A CN1721135 A CN 1721135A CN 200410052932 CN200410052932 CN 200410052932 CN 200410052932 A CN200410052932 A CN 200410052932A CN 1721135 A CN1721135 A CN 1721135A
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Abstract
The present invention relates to method for grinding and fine grinding precision bearing steel ball with oil major cycle resin grinding wheel and comprises five processes of cooling frusta, smooth grinding, hard grinding, initial grinding and fine grinding, which is characterized in that: (1) use 1000# ceramic grinding wheel or resin grinding wheel for initial grinding and oil-base grinding fluid instead of traditional water-base fluid; (2) use secondary fine grinding method, wherein, use separately resin grinding wheel of 2000# and 6000#, and modified oil-base grinding fluid. It can stabilize the quality of steel ball more than G10 class, diameter change value of batch processing, spherical error, and surface roughness is separately less than 0.2um, 0.1um, and 0.015um; the up-to-standard rate increase from 60&% to more than 90%.
Description
Technical field
The present invention relates to the method that a kind of finish systemic circulation resin wheel ground, finish grinded precision bearing steel ball, relate to a kind of technology of the steel ball grinding that adopts abrasive disc and oil base annex solution or rather, belong to the steel ball manufacture field.
Background technology
Be the epoch of IT and the contour high-speed development of science and technology of space flight and aviation today, and mechanical industry just with the development of modern science and technology, is permeated to the every field that comprises household electrical appliance.As the basis of mechanical industry, bearing industry develops towards the direction of low dry sound, precise treatment.
Early stage bearing steel ball production is to offer helicla flute on steel spring plate, and the blank steel ball after forging and pressing rotates and the mutual friction balling-up mutually of rolling along helicla flute, obviously is a kind of poor efficiency, low quality, expensive processing method.
From the seventies in 20th century, the centerless grinder special equipment of steel ball has appearred producing, it is to adopt two not to be in the mood for cast iron and to add lapping liquid, cast iron plate be not in the mood for grind steel ball in the groove at random, this becomes the mode of production of " tradition ".
The development trend of steel ball processing is high efficiency, high accuracy, high-quality, low dry sound.Reduce to cold-heading, tarry matter, hard grind, early grind and lappingout five processes from the steel ball nineties in 20th century (especially bearing steel ball) manufacturing procedure by multiple working procedures such as cold-heading in the past, file ball, buffing, hard grind, grinding, polishings.
Meanwhile, report new technology, new lapping liquid are all arranged in each procedure.Zhu Chunshan, Liu Min " resin wheel grinds the development of the special-purpose mill of steel ball Xiao liquid " (diamond and grinding materials and grinding tool engineering for example, 2003, (3): 72-74) in the literary composition, the cruel ratio of having studied the special-purpose mill of resin wheel grinding steel ball Xiao liquid is a polyethylene glycol: phthalic anhydride=10: 1, reaction temperature 110-130 ℃, mixing speed 500-650r/min; People such as horse Wan Jin (bearing, 2001 (12): 20) designed a kind of new level Four filtration system, can solve the filtration cleanliness factor problem of lapping liquid substantially, an impetus is played in the popularization that resin wheel grinds technology with mill generation and for example with it.
In sum, still still there are many problems in the attention of using resin wheel grinding precision bearing to be subjected to the industry, how to make the bearing ball qualification rate of processing have one to increase substantially, and is still industry personage's focus.
Summary of the invention
The method that provides a kind of oil base systemic circulation resin wheel to grind, finish grind precision bearing steel ball is provided the object of the invention, and the present invention's innovation is mainly reflected in three aspects: the one, adopt the technology of secondary lappingout; The 2nd, to the improvement of lapping liquid; The 3rd, use vitrified abrasive or resin wheel during early grind instead.
As mentioned above, the bearing steel ball manufacturing procedure has changed cold-heading, tarry matter, hard grind, early grind and lappingout five processes into now.The present invention improves correct grinding and lappingout two procedures.
(1) traditional early grind technology is two and is not in the mood for cast iron plate and adds water base lapping liquid, cast iron plate be not in the mood for grind steel ball in the groove, the quality instability of steel ball, especially the surface quality of steel ball is poor, be because in the cast iron plate intermetallic compound and slaine field trash tiny, extreme hardness are arranged, cause grinding not as good as evenly, easily scratch steel ball surface.The present invention adopts 1000# vitrified abrasive or resin wheel, not only can above-mentioned shortcoming, and also more wear-resisting, use the oil base lapping liquid more reasonable, pollution-free again.The surface roughness of steel ball, batch variation in diameter amount obviously improve a grade.The actual size allowance of steel ball reduces 50%, for later process is got ready.
Described 1000
#Vitrified abrasive is that Qingdao sun-stone grinding materials and grinding tool Co., Ltd produces,
Described oil base abrasive solution is the steel ball special-purpose grinding fluid that Cao County, Shandong nova Fine Chemical Works is produced.
(2) traditional lapping technique is two and is not in the mood for cast iron (hardness is lower, quality is soft and even) the water base lapping liquid of dish interpolation, cast iron plate be not in the mood in the groove grind, the polishing steel ball, the quality instability of steel ball, especially the surface quality of steel ball will maintain the G10 level and just be difficult to assurance, let alone the further raising of surface quality, mainly is because still have intermetallic compound and slaine field trash tiny, extreme hardness in the cast iron plate, cause grinding not as good as evenly, scratch steel ball surface.
The present invention adopts the method for secondary lappingout, and lappingout adopts the 2000# resin wheel for the first time, and with modification oil base lapping liquid, recirculation system is ground in design, reduces and pollutes.The surface roughness of steel ball, batch variation in diameter amount can reach precision bearing steel ball G16 level, near the level of G10 level steel ball.The actual size allowance of steel ball is 0.01 μ m～0.02 μ m only.
Lappingout adopts the 6000# resin wheel for the second time, and with modification oil base lapping liquid, steel ball surface is polished, and design lapping liquid recirculation system reduces and pollutes.The actual size of steel ball, the surface roughness of steel ball, batch variation in diameter amount has reached the level of the firm ball G10 of precision bearing, G5 level steel ball.
The resin sand wheel disc is responsive especially to grinding pressure and abrasive disc rotating speed, and the self-sharpening difference of emery wheel, ground effect are just different, in a process, must adopt repeatedly (kind), different rotating speeds, pressure combination, and good effect just can be arranged.
The lapping liquid recirculation system is that the magnet used always is inhaled the iron dust filtration mode, and the metallics under grinding from steel ball is constantly removed.
Modification oil base lapping liquid: select for use aviation kerosine to make carrier, add proper amount of lubricating agent, brightener, organic fiber material, it is provided by Cao County, Shandong nova Fine Chemical Works specialty.
Improve by top three aspects, steel ball quality is stabilized in more than the G10 level, and lots processed variation in diameter amount is less than 0.2 μ m, and deviation from spherical form is less than 0.1 μ m, surface roughness is less than 0.015 μ m, and the passing rate of processing of precision bearing is brought up to more than 90% from original 60%.
The specific embodiment
Below by specific embodiment, further specify substantive distinguishing features of the present invention and obvious improvement.
Embodiment 1
The processing technology of the bearing ball of Φ 7.9375mm
With the cold pier of traditional handicraft, tarry matter, hard grind, steel ball is through 1000 after the hard grind earlier
#Resin wheel carries out early grind, rotating speed 20-30 rev/min of pressure 3-4KN, and stock removal is about 0.015mm; Carry out the lappingout first time with the 2000# resin wheel then, rotating speed 15-20 rev/min, pressure is at 2-3KN, and stock removal is about 0.002mm; At last 6000
#Carry out the lappingout second time on the resin wheel, rotating speed is at 10-15 rev/min, and pressure is in the 0.8-1.0KN scope.Generally speaking, pressure when just getting on the bus, rotating speed height a bit reduce rotating speed and pressure then gradually, make it reach the requirement of regulation.Qualification rate is 93%.
Embodiment 2
The bearing ball technology of Φ 7.9375mm, basic craft course and embodiment 1, passing rate of processing can reach 95%.
Claims (8)
1. finish systemic circulation resin wheel grinds, finish grindes the method for precision bearing steel ball, comprises cold pier, tarry matter, hard grind, early grind and lappingout five processes, it is characterized in that:
(1) early grind adopts 1000
#Vitrified abrasive or resin wheel; Adopt the oil base lapping liquid to substitute traditional water base lapping liquid;
(2) lapping technique adopts the method for secondary lappingout, and lappingout adopts 2000 for the first time
#Resin wheel is with modification oil base lapping liquid; Lappingout adopts 6000 for the second time
#Resin wheel and grind with modification oil base lapping liquid.
2. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel, when it is characterized in that described early grind rotating speed 20-30 rev/min of emery wheel, pressure 3-4KN.
3. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel, stock removal is 0.015mm when it is characterized in that early grind.
4. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel is characterized in that rotating speed 15-20 rev/min of described first time of lappingout, pressure 2-3KN.
5. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel is characterized in that the stock removal 0.002mm of lappingout for the first time.
6. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel is characterized in that rotating speed 10-15 rev/min of lappingout for the second time, pressure 0.8-10KN.
7. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel is characterized in that described oil base lapping liquid selects for use aviation kerosine to make carrier, adds lubricant, brightener.
8. the method for grinding, finish grinding precision bearing steel ball by the described finish systemic circulation of claim 1 resin wheel is characterized in that for the first time allowance is 0.01 μ m～0.02 μ m behind the lappingout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052932 CN1721135A (en) | 2004-07-16 | 2004-07-16 | Method of grinding, finish grinding precision bearing steel ball by using grinding oil and major cycle resin grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052932 CN1721135A (en) | 2004-07-16 | 2004-07-16 | Method of grinding, finish grinding precision bearing steel ball by using grinding oil and major cycle resin grinding wheel |
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| CN1721135A true CN1721135A (en) | 2006-01-18 |
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| CN 200410052932 Pending CN1721135A (en) | 2004-07-16 | 2004-07-16 | Method of grinding, finish grinding precision bearing steel ball by using grinding oil and major cycle resin grinding wheel |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464940C (en) * | 2007-05-15 | 2009-03-04 | 山东东阿钢球集团有限公司 | Method for producing accurate steel balls |
| CN101486145B (en) * | 2009-01-16 | 2011-08-17 | 北京中材人工晶体有限公司 | Method for processing ceramic bearing ball |
| CN102363283A (en) * | 2011-06-28 | 2012-02-29 | 吴江市精工铝字制造厂 | Dust-suction device for grinder |
| CN102615587A (en) * | 2012-04-08 | 2012-08-01 | 无锡市飞云球业有限公司 | Grinding process for high-precision steel bearing ball for automobile |
| CN102729139A (en) * | 2012-07-10 | 2012-10-17 | 江苏力星通用钢球股份有限公司 | Steel ball grinding method of vertical grinding machine by double-face rein wheel |
| CN103934632A (en) * | 2014-02-26 | 2014-07-23 | 椿中岛机械(太仓)有限公司 | Production process of steel ball of racing car generator bearing |
| CN106002542A (en) * | 2016-06-05 | 2016-10-12 | 无锡市飞云球业有限公司 | Hard grinding production process for bearing steel balls without burn marks |
| CN106736291A (en) * | 2016-12-28 | 2017-05-31 | 大连昊明钢珠制造有限公司 | A kind of steel ball production technology |
| CN107116459A (en) * | 2017-06-22 | 2017-09-01 | 合肥力和机械有限公司 | A kind of primary grinding technics of bearing steel ball |
| CN111745469A (en) * | 2020-06-11 | 2020-10-09 | 北京航天控制仪器研究所 | Precise grinding method for GT35 motor shaft |
-
2004
- 2004-07-16 CN CN 200410052932 patent/CN1721135A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464940C (en) * | 2007-05-15 | 2009-03-04 | 山东东阿钢球集团有限公司 | Method for producing accurate steel balls |
| CN101486145B (en) * | 2009-01-16 | 2011-08-17 | 北京中材人工晶体有限公司 | Method for processing ceramic bearing ball |
| CN102363283A (en) * | 2011-06-28 | 2012-02-29 | 吴江市精工铝字制造厂 | Dust-suction device for grinder |
| CN102615587A (en) * | 2012-04-08 | 2012-08-01 | 无锡市飞云球业有限公司 | Grinding process for high-precision steel bearing ball for automobile |
| CN102729139A (en) * | 2012-07-10 | 2012-10-17 | 江苏力星通用钢球股份有限公司 | Steel ball grinding method of vertical grinding machine by double-face rein wheel |
| CN102729139B (en) * | 2012-07-10 | 2015-08-12 | 江苏力星通用钢球股份有限公司 | Vertical lapping machine adopts two-sided resin wheel to carry out the method for steel ball grinding |
| CN103934632A (en) * | 2014-02-26 | 2014-07-23 | 椿中岛机械(太仓)有限公司 | Production process of steel ball of racing car generator bearing |
| CN106002542A (en) * | 2016-06-05 | 2016-10-12 | 无锡市飞云球业有限公司 | Hard grinding production process for bearing steel balls without burn marks |
| CN106736291A (en) * | 2016-12-28 | 2017-05-31 | 大连昊明钢珠制造有限公司 | A kind of steel ball production technology |
| CN107116459A (en) * | 2017-06-22 | 2017-09-01 | 合肥力和机械有限公司 | A kind of primary grinding technics of bearing steel ball |
| CN111745469A (en) * | 2020-06-11 | 2020-10-09 | 北京航天控制仪器研究所 | Precise grinding method for GT35 motor shaft |
| CN111745469B (en) * | 2020-06-11 | 2021-12-07 | 北京航天控制仪器研究所 | Precise grinding method for GT35 motor shaft |
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