CN106217231A - A kind of deep groove ball bearing ring raceways superfinishing oilstone and super precision method thereof - Google Patents
A kind of deep groove ball bearing ring raceways superfinishing oilstone and super precision method thereof Download PDFInfo
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- CN106217231A CN106217231A CN201610607569.3A CN201610607569A CN106217231A CN 106217231 A CN106217231 A CN 106217231A CN 201610607569 A CN201610607569 A CN 201610607569A CN 106217231 A CN106217231 A CN 106217231A
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- oilstone
- sides
- ring raceways
- superfinishing
- ball bearing
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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
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A kind of deep groove ball bearing ring raceways superfinishing oilstone, described oilstone is column, it at least has around symmetrical eight sides of cylinder centrage, four sides the most non-conterminous in these eight sides are divided into two groups, often organize interior two sides to be plane and be parallel to each other, it is mutually perpendicular between two groups of sides, one of which when oilstone works all the time with set coil axis keeping parallelism, for axial sides, another group side vertical with axial sides is vertical side, and the side between axial sides and vertical side is transition side；When carrying out superfinishing, by the end of oilstone just to ring raceways and make the axial sides of oilstone all the time with set coil axis keeping parallelism.The method have the benefit that the present invention can improve the microstoning quality of ring raceways, the microstoning efficiency of ring raceways can be improved, oilstone material can be saved.
Description
Technical field
The present invention relates to bearing machining field, specifically a kind of deep groove ball bearing ring raceways superfinishing oilstone and
Super precision method.
Background technology
Deep groove ball bearing is the class rolling bearing being most widely used.Raceway groove is topmost when being deep groove ball bearing operating
Working surface, its form accuracy and surface quality, bearing operation precision and the performance such as life-span and vibration noise there are is important shadow
Ring.Raceway groove is positioned at deep ditch ball bearing ring surface, and its shape is anchor ring, and its axial truncatus is one section of circular arc (hereinafter referred to as ditch
Shape circular arc).
Superfinishing is a kind of traditional grinding process technique, is called for short microstoning.Superlinishing working method is
Oilstone is pressed in surface of the work with certain pressure floating ground and makees the small size higher-order of oscillation, meanwhile, surface of the work relative to oilstone make into
Give motion.Microstoning can significantly reduce roughness and percent ripple, thus improves workpiece surface quality.
In general microstoning, oilstone shape of working surface and surface of the work shape are identical, and both are in face contact
State, this makes oilstone preferentially can be ground the microcosmic high point of surface of the work in the range of the contact area of face, thus has
It is beneficial to reduce roughness and the percent ripple of surface of the work.It is to be worn and torn by oilstone self with the shape of the oilstone work surface of absorption surface
Formed, depend primarily on the geometrical relationship between oilstone and workpiece and relative motion relation, be not required to repair specially.
For the microstoning on general surface, such as plane, the face of cylinder, sphere etc., oilstone shape of working surface is exactly corresponding plane, circle
Cylinder or sphere.
Microstoning is the most universal in the application of bearing industry.Deep groove ball bearing ring raceways superlinishing main purpose
It is to reduce channel surface roughness, percent ripple and improve circularity to a certain extent, thus improves bearing performance.Microstoning is
Last procedure in deep groove ball bearing ring raceways processing, has crucial effect to bearing finished products performance.
The deep groove ball bearing ring raceways super precision method that bearing industry is commonly used at present is the side the most always used
Method, referred to as traditional method, oilstone and processing mode used by it have the feature that (1) oilstone is shaped as quadrangular, its cross section
For rectangle.(2) during superfinishing, initial positional relationship between oilstone and lasso is that oilstone end faces ring raceways, oilstone
In four sides, two vertical with set coil axis, and two other is parallel with set coil axis.(3) during superfinishing between oilstone and lasso
Movement relation be that lasso rotates in fixed axis around own axes, oilstone is pressed in ring raceways surface also with certain pressure floating ground
Making dead axle to swing, its axis of oscillation is perpendicular to overlap coil axis the Gou Xing center of arc through raceway groove.
Based on oilstone used and the features described above of processing mode, traditional method has some limitations.Due to oilstone work
Make face shape can not fit like a glove with ring raceways shape so that oilstone work surface is unable to reach typically with contacting of channel surface
Surface contact state in superfinishing, this not only affects the surface quality index such as the roughness of raceway groove, percent ripple after microstoning, even
The form accuracy of raceway groove circular arc ditch shape can be affected.Now there are some researches show, if oilstone initialization face shape and ring raceways circle
Torus shape is completely the same, then the swing of oilstone can produce movement interference with the rotation of lasso, and interfering the most serious place is oil
4 folding corner regions of stone work surface.
In view of the above-mentioned limitation of tradition raceway groove super precision method, there has been proposed multiple different super precision method, such as, one
Kind of method is to be made in the orientation of oilstone axis of oscillation consistent with set coil axis, and another kind method is to change the attitude of oilstone into side
Face tilts relative to set coil axis, and makes a diagonal of oilstone cross section rectangle with to overlap coil axis vertical, hereafter by this
Method is referred to as oilstone tilting superfinishing method.But, although these methods overcome the limitation of traditional method in some aspects,
Other aspects create new limitation, and such as, when the orientation of oilstone axis of oscillation is consistent with set coil axis, oilstone abrasive particle is relative
Movement locus in channel surface no longer intersects, and this can affect microstoning quality and efficiency, and channel surface also without
Method forms the netted lines that can produce beneficial effect.
Summary of the invention
The technical problem to be solved is to provide a kind of deep groove ball bearing ring raceways superfinishing oilstone and surpasses
Precision method, for overcoming the limitation of existing raceway groove super precision method.
The present invention solves that above-mentioned technical problem be the technical scheme is that a kind of deep groove ball bearing ring raceways superfinishing
With oilstone, described oilstone is column, and it at least has around symmetrical eight sides of cylinder centrage, by these eight sides
The most non-conterminous four sides are divided into two groups, often organize interior two sides and are plane and are parallel to each other, the most vertical between two groups of sides
Directly, one of which when oilstone works all the time with set coil axis keeping parallelism, for axial sides, another vertical with axial sides
Group side is vertical side, and vertical side swings to just to vertical with set coil axis during ring raceways in oilstone work process,
Side between axial sides and vertical side is transition side, transition side make oilstone can alleviate in the course of the work with
Interference between ring raceways；
Distance between two vertical sides is the main width of oilstone, and the width of axial sides is oilstone time width, two axial side
Spacing between face is the main thickness of oilstone, and the sideways width that hangs down is oilstone time thickness, oilstone time width and the main width of oilstone
Ratio, and the ratio of oilstone time thickness and the main thickness of oilstone is 0.4 ~ 0.7.
The transition side of column oilstone of the present invention is plane or circular arc camber or other curved surfaces or combinatorial surface.
All sides that is shaped as of oilstone of the present invention are eight prisms of plane.
Oilstone of the present invention time width is the half of the main width of oilstone；Oilstone time thickness is the half of the main thickness of oilstone.
Utilize the method that oilstone described in claim 1 carries out superfinishing to deep groove ball bearing ring raceways, by the end of oilstone
Just to ring raceways and make the axial sides of oilstone all the time with set coil axis keeping parallelism, be pressed in lasso with certain pressure floating ground
Channel surface also makees dead axle swing, and its axis of oscillation is perpendicular to overlap coil axis the Gou Xing center of arc through raceway groove, overlaps simultaneously
Circle rotates in fixed axis around own axes.
The unilateral pendulum angle of oilstone of the present invention is less than 18 °.
The invention has the beneficial effects as follows: (1) can improve the microstoning efficiency of ring raceways.Oilstone mistake of the present invention
Cross place, side four angular zone and there is no oilstone material, greatly reduce the movement interference degree between oilstone and lasso, make oilstone
The degree of agreement of shape of working surface and ring raceways surface configuration improves, and oilstone surface has more and distribution widely to grind
Grain participates in superfinishing, thus improves microstoning efficiency.
(2) the microstoning quality of ring raceways can be improved.Compared with traditional method, this method is owing to alleviating corner
The interference in region, can make the microstoning Quality advance of ring raceways bottom section；On the other hand, although participate in raceway groove two lateral areas
The oilstone material of territory superfinishing has reduced, and still can ensure the microstoning quality in this region；Compared with superfinishing method tilting with oilstone, this
Invention carries out the oilstone material of superfinishing and dramatically increases raceway groove two side areas, can make this region microstoning Quality advance, and
The limitation that region, oilstone tilting superfinishing method raceway groove both sides of the edge superfinishing is insufficient can be overcome, thus improve the super of ring raceways
Polish quality.
(3) compared with the oilstone of traditional method, place four, oilstone transition side of the present invention angular zone does not has oilstone material
Material, therefore can save oilstone material.
Accompanying drawing explanation
Fig. 1 is the microstoning mode schematic diagram of the present invention；
Fig. 2 is oilstone structural representation of the present invention；
Fig. 3 is that oilstone contacts area schematic with raceway groove.
Labelling in figure: 01, deep groove ball bearing inside race, 02, be shaped as the oilstone of eight Pedicellus et Pericarpium Trapae posts, nn, oilstone axis of oscillation,
Oo, lasso pivot center.
Detailed description of the invention
A kind of deep groove ball bearing ring raceways superfinishing oilstone, described oilstone is column, and it at least has around cylinder center
Four sides the most non-conterminous in these eight sides are divided into two groups, often organize interior two sides by eight sides that line is symmetrical
For plane and be parallel to each other, being mutually perpendicular between two groups of sides, one of which keeps with set coil axis all the time when oilstone works
Parallel, for axial sides, another group side vertical with axial sides is vertical side, and vertical side is in oilstone work process
Swinging to just to vertical with set coil axis during ring raceways, the side between axial sides and vertical side is transition side, mistake
Crossing side makes oilstone can alleviate the interference between ring raceways in the course of the work；
Distance between two vertical sides is the main width of oilstone, and the width of axial sides is oilstone time width, two axial side
Spacing between face is the main thickness of oilstone, and the sideways width that hangs down is oilstone time thickness, oilstone time width and the main width of oilstone
Ratio, and the ratio of oilstone time thickness and the main thickness of oilstone is 0.4 ~ 0.7.
Further, the transition side of column oilstone is plane or circular arc camber or other curved surfaces or combinatorial surface.
Further, all sides that is shaped as of oilstone are eight prisms of plane.
Further, oilstone time width is the half of the main width of oilstone；Oilstone time thickness is the half of the main thickness of oilstone.
Utilize the method that oilstone described in claim 1 carries out superfinishing to deep groove ball bearing ring raceways, by the end of oilstone
Just to ring raceways and make the axial sides of oilstone all the time with set coil axis keeping parallelism, it is the most right that vertical side swings at oilstone
During ring raceways with set coil axis vertical, with certain pressure floating ground be pressed in ring raceways surface and make dead axle swing, its swing
Axis is perpendicular to overlap coil axis the Gou Xing center of arc through raceway groove, and lasso rotates in fixed axis around own axes simultaneously.
Further, the unilateral pendulum angle of oilstone is less than 18 °.
As in figure 2 it is shown, wherein side, AH and DE place is mutually perpendicular to side, BC and FG place, in conjunction with Fig. 1, AH and DE institute
Being axial sides in side, correspondingly, side, BC and FG place is vertical side, and side, AB, CD, EF and HG place is transition side
Face；Distance between line segment BC and FG is the main width of oilstone, and the length of line segment AH and DE is oilstone time width；Line segment AH and DE it
Between distance be the main thickness of oilstone, the length of line segment BC and FG is oilstone time thickness.
Position relationship between oilstone and lasso is: during superfinishing, and two axial sides of column oilstone remain
Parallel with set coil axis, and its vertical side is vertical, such as Fig. 1 institute with set coil axis when oilstone swings to just to ring raceways
Show.
The present invention obtains the know-why of beneficial effect, can be according to the spy of macroscopically oilstone Yu ring raceways contact area
Levy, grind principle according to superfinishing and illustrate.Restricted by superfinishing working method, initial with the oilstone that channel shape fits like a glove
Work surface, can move interference with channel surface in oilstone swing process, and this combines with oilstone wearing character so that oil
Stone is sufficiently complex with the actual contact situation of raceway groove.For tradition super precision method and oilstone used thereof, this interference is at oilstone
Four angular zones are the most serious.Although oilstone shape of working surface and channel shape in theory and are misfitted, but oilstone and raceway groove is true
In the range of real contact is positioned at their macroscopical contact area, is restricted by macroscopic view contact area, thus oilstone is connect with raceway groove macroscopic view
The analysis in tactile district superfinishing can be ground efficiency and quality problems illustrate.
Macroscopically the contact area of oilstone and raceway groove is as shown in Figure 3.Fig. 3 is oilstone when swinging to just to ring raceways, with
The view in plane that oilstone short transverse is vertical.Typical eight prism oilstone and ring raceways in Special-shaped oilstone of the present invention
Contact area be the ABCDEFGH region shown in Fig. 3, it is shaped as octagon；Tradition super precision method oilstone contacts with lasso
Region is the JKLI region shown in Fig. 3, and it is shaped as tetragon；The contact area of superfinishing method tilting for oilstone, oilstone and lasso
Territory is the MNOP region shown in Fig. 3, and its shape is also tetragon but attitude is different from tradition super precision method.
In conjunction with Fig. 3, the know-why of the present invention and the effect of acquirement are described as follows in terms of four:
(1) compared with traditional method, the present invention is at four angular zones of traditional method contact area, i.e. ABI, CDJ, EFK, GHL in Fig. 3
Represented region, does not has oilstone material, thus greatly reduces the movement interference degree between oilstone and lasso, make oilstone work
The degree of agreement of face shape and ring raceways surface configuration improves, and oilstone surface has more and is distributed widely abrasive particle ginseng
With superfinishing, thus improve microstoning efficiency；
(2) in the contact area of oilstone of the present invention and lasso, just region represented by BCFG in the rectangular area to bottom of trench, i.e. Fig. 3
Oilstone material trench bottom region can be carried out superfinishing more fully.Trench bottom region is the groundwork district of ring raceways
Territory, during bearing runs, raceway groove occurs mainly in this region with contacting of steel ball, and the superfinishing quality in this region is to bearing performance
Impact maximum.Compared with traditional method, the method for the present invention, owing to alleviating the interference of traditional method oilstone four angular zone, makes ditch
The microstoning quality of road bottom section is improved；Compared with superfinishing method tilting with oilstone, owing in Fig. 3, BCGF region area is big
In NadPcb region area, the oilstone material that this method carries out superfinishing to trench bottom region is more, and distribution is bigger, has number
Measure more and be distributed widely abrasive particle participation superfinishing (beneficially improving superfinishing efficiency and quality), and can be wider
The ripple high point on Automatic-searching trench bottom surface is ground (beneficially improving percent ripple), so that the superfinishing of trench bottom
Crudy is more preferable.
(3) in the contact area of oilstone of the present invention and lasso, ABGH and CDEF in the region of raceway groove both sides, i.e. Fig. 3
Two represented trapezoid areas, its oilstone material can carry out superfinishing to the surface of raceway groove two side areas.Compared with traditional method,
This method is owing to alleviating the interference of four angular zones, although the oilstone material participating in raceway groove two side areas superfinishing has reduced, still
The microstoning quality of raceway groove two side areas can be ensured.Compared with superfinishing method tilting with oilstone, owing in Fig. 3, ABGH region area shows
Writing more than Mad region area, the oilstone material that this method carries out superfinishing to raceway groove two side areas is more, makes raceway groove two side areas
Superfinishing is in hgher efficiency, microstoning better quality, and region, oilstone tilting superfinishing method raceway groove both sides of the edge can be overcome (i.e. to scheme
3 section line regions) the insufficient limitation of superfinishing.Oilstone tilting superfinishing method participates in the oil of region, raceway groove both sides of the edge superfinishing
Stone material, is the material in Meh and Ofg region in Fig. 3, and the two region area is the least, participates in the oilstone abrasive particle quantity of superfinishing
Less and distribution is little, inadequate to the material removal ability in region, raceway groove both sides of the edge, easily cause this region superfinishing insufficient.
(4) the inventive method saves oilstone material than traditional method, because ABCDEFGH region area is less than IJKL in Fig. 3
Region area.
Based on angular contact ball bearing and the similarity with deep groove ball bearing raceway groove character of thrust ball bearing ring raceways,
Method slightly modified to the present invention, the superfinishing being i.e. applicable to angular contact ball bearing and thrust ball bearing ring raceways adds
Work.Such amendment still falls within the protection domain of this patent.
Choose the main thickness of oilstone to need to consider that the pros and cons of superfinishing effect is affected and balanced by it.The main thickness of oilstone
When degree is chosen bigger, favourable aspect is: the abrasive particle quantity that oilstone surface puts into grinding simultaneously is many, and oilstone automatically selects raceway groove table
Face microcosmic ripple high point carries out the wide ranges of differential grinding, is conducive to improving grinding efficiency and improving percent ripple；Disadvantageously
It is: when oilstone swings, oilstone work surface increases with the interference degrees in channel shape face, diverse location oilstone working ability in contact area
Difference also increase, cause raceway groove crudy uniformity decline even working (machining) efficiency reduce.Compared with traditional method, this method
The movement interference the most serious owing to there is not traditional method contact area four angular zone, choosing the main thickness of oilstone under similarity condition can
With larger than the oilstone thickness of traditional method, thus improve superfinishing efficiency to a greater degree and improve percent ripple.Choose oilstone
Main thickness also needs to consider the size of raceway diameter.
The Main Basis choosing the main width of oilstone is channel width and oilstone pendulum angle, and the main width of oilstone to be weighed is relatively
The pros and cons impact produced time big.After given oilstone pendulum angle, the maximum of the main width of oilstone should ensure that oilstone is put
When moving extreme position, its vertical side can be completely into raceway groove outside raceway groove, and the minima of the main width of oilstone should ensure that oil
When stone swings to inverse limit position, its vertical side can measure in raceway groove and reach trench edges, and the main width of actual oilstone should be
Choose between this minima and maximum.When oilstone main width value is bigger, the Beneficial Effect of superfinishing effect is by it: raceway groove
The superfinishing in region, both sides of the edge (hatched region as shown in Figure 3) is the most abundant, should because there being more oilstone abrasive particle to put into
The grinding in region；Adverse effect is: it is less that the oilstone material of oilstone vertical lateral edge near zone puts into the chance ground, from
Body is not easy abrasion so that on oilstone surface, the central region of easily abrasion cannot better contact with raceway groove, thus affects ditch
The superfinishing effect of road central region.The oilstone material of oilstone vertical lateral edge near zone puts into grinder can less reason
It is that these materials have more chance to be swung to outside raceway groove, such as, when oilstone swings to just to raceway groove, as shown in Figure 3
It is in the oilstone material outside two shadow regions and is at outside raceway groove not putting into grinding.
Compared with traditional method, the method for the present invention due to oilstone vertical lateral edge near zone oilstone material relatively
Few, self it is not easy to wear away produced adverse effect less, chooses the main width of oilstone under similarity condition and can compare traditional method
Oilstone width larger, thus to a greater degree improve superfinishing effect.
Embodiment
Below as a example by the deep groove ball bearing bear inner ring grooved railway superfinishing that model is 61818, Special-shaped oilstone of the present invention is described
In the choosing of typical eight prism oilstone relative dimensions.According to design drawing, it is known that 61818 deep groove ball bearing bear inner ring grooved railway are correlated with
Geometric parameter is: raceway diameter 96.356mm, rib diameter 98.855mm, Contact stress 3.679mm.
Based on bear inner ring grooved railway diameter, considering the main thickness of oilstone affects the pros and cons of superfinishing effect, takes oilstone
Main thickness is 30mm, and oilstone time thickness takes the half i.e. 15mm of the main thickness of oilstone.
Calculating channel width according to above-mentioned known 61818 deep groove ball bearing bear inner ring grooved railway geometric parameters is 7.002mm.Choosing
Taking oilstone one side pendulum angle is 18 °.Consider oilstone main width the pros and cons of superfinishing effect is affected, take oilstone master
Width is 7.5mm, and oilstone time width takes the half of the main width of oilstone, for 3.5mm.
Claims (5)
1. a deep groove ball bearing ring raceways superfinishing oilstone, it is characterised in that: described oilstone is column, its at least have around
Four sides the most non-conterminous in these eight sides are divided into two groups by eight sides that cylinder centrage is symmetrical, often in group
Two sides are plane and are parallel to each other, and are mutually perpendicular between two groups of sides, one of which when oilstone works all the time with lasso
Axis keeping parallelism, for axial sides, another group side vertical with axial sides is vertical side, and vertical side is in oilstone work
Swinging to during work just to vertical with set coil axis during ring raceways, the side between axial sides and vertical side is transition
Side, transition side makes oilstone can alleviate the interference between ring raceways in the course of the work；
Distance between two vertical sides is the main width of oilstone, and the width of axial sides is oilstone time width, two axial side
Spacing between face is the main thickness of oilstone, and the sideways width that hangs down is oilstone time thickness, oilstone time width and the main width of oilstone
Ratio, and the ratio of oilstone time thickness and the main thickness of oilstone is 0.4 ~ 0.7.
A kind of deep groove ball bearing ring raceways superfinishing oilstone the most according to claim 1, it is characterised in that: described column
The transition side of oilstone is plane or circular arc camber or other curved surfaces or combinatorial surface.
A kind of deep groove ball bearing ring raceways superfinishing oilstone the most according to claim 1, it is characterised in that: described oilstone
All sides that is shaped as be eight prisms of plane.
A kind of deep groove ball bearing ring raceways superfinishing oilstone the most according to claim 1, it is characterised in that: oilstone time is wide
Degree is the half of the main width of oilstone；Oilstone time thickness is the half of the main thickness of oilstone.
5. utilize the method that oilstone described in claim 1 carries out superfinishing to deep groove ball bearing ring raceways, it is characterised in that: by oil
The end of stone just to ring raceways and make the axial sides of oilstone all the time with set coil axis keeping parallelism, with certain pressure floating ground
Being pressed in ring raceways surface and make dead axle swing, its axis of oscillation is perpendicular to overlap coil axis and in the ditch shape circular arc of raceway groove
The heart, lasso rotates in fixed axis around own axes simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610607569.3A CN106217231B (en) | 2016-07-29 | 2016-07-29 | A kind of deep groove ball bearing ring raceways superfinishing oilstone and its super precision method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607569.3A CN106217231B (en) | 2016-07-29 | 2016-07-29 | A kind of deep groove ball bearing ring raceways superfinishing oilstone and its super precision method |
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| CN106217231B CN106217231B (en) | 2018-04-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4136488A (en) * | 1977-08-29 | 1979-01-30 | Ex-Cell-O Corporation | Honing machine |
| CN2657860Y (en) * | 2003-10-30 | 2004-11-24 | 庄乾国 | Oilstone |
| EP1900478A1 (en) * | 2006-09-14 | 2008-03-19 | JTEKT Corporation | Super finishing stone and super finishing method |
| CN201102196Y (en) * | 2007-10-31 | 2008-08-20 | 浙江四通轴承集团有限公司 | Special-shaped oilstone |
| CN101549471A (en) * | 2009-05-18 | 2009-10-07 | 浙江大学 | Super grinding whetstone for cylindrical roller with logarithmic camber |
| CN101733700A (en) * | 2009-11-17 | 2010-06-16 | 浙江五洲新春集团有限公司 | Superfine grinding method for rolling bearing |
-
2016
- 2016-07-29 CN CN201610607569.3A patent/CN106217231B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4136488A (en) * | 1977-08-29 | 1979-01-30 | Ex-Cell-O Corporation | Honing machine |
| CN2657860Y (en) * | 2003-10-30 | 2004-11-24 | 庄乾国 | Oilstone |
| EP1900478A1 (en) * | 2006-09-14 | 2008-03-19 | JTEKT Corporation | Super finishing stone and super finishing method |
| CN201102196Y (en) * | 2007-10-31 | 2008-08-20 | 浙江四通轴承集团有限公司 | Special-shaped oilstone |
| CN101549471A (en) * | 2009-05-18 | 2009-10-07 | 浙江大学 | Super grinding whetstone for cylindrical roller with logarithmic camber |
| CN101733700A (en) * | 2009-11-17 | 2010-06-16 | 浙江五洲新春集团有限公司 | Superfine grinding method for rolling bearing |
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| Publication number | Publication date |
|---|---|
| CN106217231B (en) | 2018-04-10 |
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Application publication date: 20161214 Assignee: Luoyang Rencheng Bearing Accessories Co., Ltd. Assignor: Henan University of Science and Technology Contract record no.: X2019980000437 Denomination of invention: Oilstone and method for superfinishing of ring groove of deep groove ball bearing Granted publication date: 20180410 License type: Common License Record date: 20191104 |