CN1544204A - Bearing outside diameter grinding and processing method utilizing noncentral excircle through feed grinding - Google Patents
Bearing outside diameter grinding and processing method utilizing noncentral excircle through feed grinding Download PDFInfo
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- CN1544204A CN1544204A CNA2003101051642A CN200310105164A CN1544204A CN 1544204 A CN1544204 A CN 1544204A CN A2003101051642 A CNA2003101051642 A CN A2003101051642A CN 200310105164 A CN200310105164 A CN 200310105164A CN 1544204 A CN1544204 A CN 1544204A
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Abstract
The invention relates to an external diameter milling processing method of coreless through-external circule milling bearing, continuously adjusting the center height of the workpiece to heighten milling precision and productivity. Its technical project: (1) external diameter milling procedure: taking the center height of the mill bed as reference to adjust the center height of a workpiece to 80mm, roughly milling twice-thrice up to the roughly milling size and eliminating circular error; (2) reprocessing workpiece: taking the center height of the mill bed to adjust that of the workpiece to 3-7 mm, the elliptical VDP is controlled in 2 mum and waviness controlled in 1.5mum; (3) after processed by the above two procedures, adjusting the center height of the workpiece again to 80mm with that of the mill bed as reference for milling, the diameter of the workpiece is milled off by 10mum, the 'multi-angle ' are removed by 25mum, and circular error is controlled within 1.5mum; adjusting the center height of the workpiece with the external diameter less than 80mm to 40mm. It ensures processing precision, prolongs service life of finished bearings and heightens the whole quality of bearing products.
Description
Technical field
The invention belongs to the Machining Technology field, relate to a kind of centerless external cylindrical and run through mill bearing outside diameter mill method for processing.
Background technology
Making bearing ring will be through getting the raw materials ready → forges → turning processing → heat treatment → a series of manufacturing procedures such as grinding.Its last procedure is grinding.Each surface of grinding, national standard, the design technology regulation all has strict required precision, the size of the finished surface of last process, geometric accuracy all will directly influence the dimensional accuracy of next procedure, geometric accuracy and product quality, and will directly influence the service life of finished product bearing.Bearing ring in Grinding Process each surperficial morpheme error and influence each other, mutual restriction.In the grinding bearing rings process, at first be the face grinding operation, be exactly to grind the external diameter surface operation then.This is the axial location benchmark of each finished surface after being because of end face, and external diameter is the orientation location benchmark of each finished surface of mill processing, and simultaneously, external diameter also will play the role of positioning when installation is supporting as matching surface.Eliminate its superb technical ability and the rich experience of the general dependence of the error of rerunning a movie.
Because scroll chuck card workpiece is adopted in last process turner turning more, so workpiece can cause " triangle " this out-of-roundness.Though bearing industry has been created the three-jaw card for a long time and has been changed 6 cards of three-jaw into, can make workpiece " hexagonal " rather than " triangle " occur, it is improper also can to select because of two stuck point claws of 6 cards of three-jaw sometimes, also can cause the problem of " triangle "." triangle " problem has arrived grinder, and is the easiest to be out in the cold and not revise circle, still moves with the downward operation of " triangle " shape cylindrical, and causing down operation also is " triangle ", also is " triangle " to finished product.Have influence on down the quality of operation, up to influence assembling end product quality, and external diameter " triangle " is too tightly adorned not enter when the user installs.So must change circle in " triangle " (the three ripple out-of-roundness) and " ellipse " (the two ripple out-of-roundness) grinding that causes of quenching that mill external diameter operation must cause turner.External diameter grinds the back ellipse eventually, " triangle " is not overproof, could guarantee the next procedure product quality.
External diameter is not in the mood for running through the next procedure of mill---the grinding of outer fissure.The radially room of outer fissure electric magnetic no-core card is with two fulcrums, the outer path position of last point supporting wherein, and corresponding endoporus place is exactly the grinding points of emery wheel.Be known as " profile copy grinding ".Outer round to what degree, what degree outer fissure (interior circle) is also justified into.And outer fissure is the bearing element working surface, is the significant points of its quality, and in the bearing parts technical conditions, form and position tolerance is strict in external diameter.Because of " profile copy grinding ", just must use and improve the external diameter specification requirement, again to satisfy the processing technology requirement of outer fissure.Outer fissure 100% all be beyond the radial location benchmark; Inner ring also has the product that external diameter in the rib is much arranged, and a lot of units all carry out external diameter radial location processing in septal fossula, the internal diameter supporting rib, account for more than 50%.Centerless grinding easily realizes high-rate grinding, high-speed grinding, and wide emery wheel and many wheel grindings, workpiece can pass through grinding area in succession continuously.And the automation of realization grinding process, the production efficiency height.In grinding process, except that compensating owing to the feed of abrasion of grinding wheel need, the relative position between emery wheel and supporting plate, guide rail is variable, and the workpiece centre height is to influence grinding out-of-roundness main error.The centerless external cylindrical mill bearing outside diameter mill method for processing that adopts at present usually, though the workpiece centre height is adjusted,, determine never and grasp the preferred plan that the workpiece centre height is adjusted that therefore, machining accuracy generally can only reach regular grade.Bearing is as the product of producing in enormous quantities, more than 10000 of every centerless grinder processing work every day, so the efficient of centerless external cylindrical through feed grinding, quality are respectively ground the product quality and the production process of manufacturing procedure after will directly influencing.
Summary of the invention
For being difficult to guarantee bearing outside diameter processing, the method that solves present centerless grinding machining bearing external diameter reaches high-precision problem, the invention provides a kind of centerless external cylindrical and run through mill bearing outside diameter mill method for processing, this method is carried out centerless grinding by continuous adjustment workpiece centre optimum height to bearing outside diameter, improves grinding accuracy and production efficiency.
Every grinding machine center height is determined, is the height of bed surface to line between emery wheel and the guide wheel, simultaneously, and grinding machine center height=workpiece radius+grinding machine supporting plate height.Adjust the workpiece centre height,, just can reach the purpose of adjusting the workpiece centre height as long as adjusted the grinding machine centre-height, simple to operation.
The technical solution adopted for the present invention to solve the technical problems is that a kind of centerless external cylindrical runs through mill bearing outside diameter mill method for processing, the steps include:
(1) workpiece during to external diameter grinder preface, will be that benchmark is heightened to 80mm with grinding machine center height with the workpiece centre Height Adjustment from the heat treatment quenching process at first; Roughly grind 2-3 time,, be ground to the corase grind size, remove its circular deviation;
(2) returning the preface workpiece and add man-hour, with the workpiece centre Height Adjustment, is that benchmark is heightened to 3-7mm with the grinding machine centre-height, and oval VDP can be controlled in the 2 μ m, and waviness wav is controlled in the 1.5 μ m;
(3) at workpiece by above-mentioned corase grind with after returning preface processing, with the workpiece centre Height Adjustment, be that benchmark is heightened to 80mm with the grinding machine centre-height, carry out grinding, grind off 10 μ ms with diameter of work this moment, just " polygonal " can be given up 25 μ m, and circular deviation delta cir is controlled in the 1.5 μ m;
(4) when workpiece external diameter during less than 80mm, the adjustment of workpiece centre height is that benchmark heightens that to change into the grinding machine centre-height to 80mm be that benchmark is heightened to 40mm with the grinding machine centre-height in the above-mentioned steps.
In order to change round turner " triangle ", the workpiece centre height must be carried very high at mill external diameter corase grind, with grinding machine center height be benchmark heighten to 80mm be a preferred heights, mill 2-3 is all over getting final product.It is sharp and super round to give up " triangle " peak.But workpiece centre is too high, is unfavorable for improving the quenching ellipse that heat treatment step produces.So when external diameter returned the preface grinding, the height of conversion workpiece centre again, the actual best workpiece centre height that adopts aborning be for being that benchmark is heightened to 3-7mm with grinding machine center height, could the most effective improvements oval, and any even number ripple.Maximum height and minimum altitude are distributed two of processing pass, and maximum height when promptly grinding casting skin is used minimum altitude when grinding eventually.The elliptic problem and the triangulation problem of external diameter processing have so just been solved.The present invention is particularly useful for M10100, M10160, and M10200, M10400, M1080, centerless external cylindrical such as M1086 run through grinding machine.Be not in the mood for running through the grinder preface at roller and can use for reference use yet.
The invention has the beneficial effects as follows,, guaranteed the bearing outside diameter machining accuracy, improved the service life of finished product bearing, improved the total quality of bearing products owing to bearing outside diameter is carried out centerless grinding by continuous adjustment workpiece centre height.
Description of drawings
Below in conjunction with the accompanying drawing drawings and Examples this practicality invention is described further.
Fig. 1 is a schematic diagram of the present invention.
Among the figure, 1. guide wheel, 2. emery wheel, 3. workpiece, 4. grinding machine face, 5. grinding machine centre-height, 6.
Workpiece centre height, 7. grinding machine supporting plate.
The specific embodiment
Use the workpiece (regular grade) of centerless grinder processing external diameter Φ 80-120mm
Oval VDP≤5 μ m
Waviness wav≤2.5 μ m
Tapering VDMP≤5 μ m
Circular deviation delta cir≤6 μ m (K=2)
Every grinding machine centre-height 5 is determined, is the height of grinding machine face 4 to line between emery wheel 2 and the guide wheel 1, simultaneously, and the height of the high 5=workpiece radius in grinding machine center+grinding machine supporting plate 7.Adjust workpiece centre height 6,, just can reach the purpose of adjusting workpiece centre height 6 as long as adjusted grinding machine centre-height 5, simple to operation.
Method of operating is as follows:
(1) workpiece 3, at first will be adjusted workpiece 3 centre-heights 6 during to external diameter grinder preface from the heat treatment quenching process, be that benchmark is heightened to 80mm with grinding machine centre-height 5; Roughly grind 2-3 time, be ground to the corase grind size, remove its circular deviation; Its circular deviation i.e. " polygonal ", and " triangle " problem can be removed.
(2) returning preface workpiece 3 and add man-hour, workpiece 3 centre-heights 6 are adjusted, is that benchmark is heightened to 3-7mm with grinding machine centre-height 5, oval VDP can be controlled in the 2 μ m, waviness wav is controlled in the 1.5 μ m, and workpiece 3 machining accuracies increase substantially, and reaches micron order bearing requirement standard.
(3) at workpiece 3 by above-mentioned corase grind with after returning preface processing, workpiece 3 centre-heights 6 are adjusted again, be that benchmark is heightened to 80mm with grinding machine centre-height 5, carry out grinding, at this moment workpiece 3 diameters are ground off 10 μ m, " polygonal " given up 25 μ m.When workpiece 3 was milled to the final size of specification requirement, circular deviation delta cir can be controlled in the 1.5 μ m.Workpiece 3 results by step processing external diameter Φ 80-120mm of the present invention are as follows
Oval VDP≤4 μ m
Waviness wav≤1.5 μ m
Tapering VDMP≤4 μ m
Circular deviation delta cir≤2.2 μ m (K=2)
Claims (1)
1, a kind of centerless external cylindrical runs through mill bearing outside diameter mill method for processing, by continuous adjustment workpiece centre optimum height bearing outside diameter is carried out grinding, improves grinding accuracy and production efficiency, it is characterized in that, mill method for processing step is:
(1) workpiece is from the heat treatment quenching process during to external diameter grinder preface, will be that benchmark is heightened to 80mm with grinding machine center height promptly with the workpiece centre Height Adjustment at first, roughly grinds 2-3 time, is ground to the corase grind size, removes its circular deviation;
(2) returning the preface workpiece and add man-hour, with the workpiece centre Height Adjustment, is that benchmark is heightened to 3-7mm with grinding machine center height promptly, and oval VDP is controlled in the 2 μ m, and waviness is controlled in the 1.5 μ m;
(3) at workpiece by above-mentioned corase grind with after returning preface processing, the workpiece centre height is adjusted again, be that benchmark is heightened to 80mm promptly with grinding machine center height, carry out grinding, grind off 10 μ ms with diameter of work this moment, " polygonal " can be given up 25 μ m, and circular deviation delta cir is controlled in the 1.5 μ m;
(4) when the adjustment of the workpiece centre height of workpiece external diameter during less than 80mm, in the above-mentioned steps is that benchmark heightens that to change into to 80mm be that benchmark is heightened to 40mm with grinding machine center height promptly with grinding machine center height promptly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101051642A CN1544204A (en) | 2003-11-21 | 2003-11-21 | Bearing outside diameter grinding and processing method utilizing noncentral excircle through feed grinding |
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| CNA2003101051642A CN1544204A (en) | 2003-11-21 | 2003-11-21 | Bearing outside diameter grinding and processing method utilizing noncentral excircle through feed grinding |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528583A (en) * | 2012-02-10 | 2012-07-04 | 江苏迪邦三星轴承有限公司 | Grinding method of thin-wall outer ring with hole |
| CN102699781A (en) * | 2012-05-14 | 2012-10-03 | 宁波晨阳光电科技有限公司 | Piercing mill device for processing optical fiber ferrule |
| CN102848284A (en) * | 2011-06-27 | 2013-01-02 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
| CN102922237A (en) * | 2012-11-05 | 2013-02-13 | 大连东信大型轴承滚子有限公司 | Technology for processing spherical roller of extra large size bearing |
| CN103419100A (en) * | 2013-06-21 | 2013-12-04 | 杭州人本中型轴承有限公司 | Bearing outer ring grinding process |
| 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 |
| CN103753359A (en) * | 2013-12-16 | 2014-04-30 | 海宁奇晟轴承有限公司 | Outer peripheral face polishing machine for bearing outer ring |
| CN104476339A (en) * | 2014-12-10 | 2015-04-01 | 重庆耀勇减震器有限公司 | Centreless grinding guide plate debugging tool |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
| CN106041651A (en) * | 2015-04-02 | 2016-10-26 | 马勒国际有限公司 | Grinding machine |
| CN114227387A (en) * | 2021-09-06 | 2022-03-25 | 广东东方精工科技股份有限公司 | Method for polishing rubber pad of die cutting unit |
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2003
- 2003-11-21 CN CNA2003101051642A patent/CN1544204A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848284A (en) * | 2011-06-27 | 2013-01-02 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
| CN102848284B (en) * | 2011-06-27 | 2015-07-08 | 南通德鑫数控机床有限公司 | Machine tool for simultaneously removing chips of inner and outer circles of piston ring blanks |
| CN102528583A (en) * | 2012-02-10 | 2012-07-04 | 江苏迪邦三星轴承有限公司 | Grinding method of thin-wall outer ring with hole |
| CN102699781A (en) * | 2012-05-14 | 2012-10-03 | 宁波晨阳光电科技有限公司 | Piercing mill device for processing optical fiber ferrule |
| CN102699781B (en) * | 2012-05-14 | 2016-08-03 | 宁波晨阳光电科技有限公司 | A kind of punching mill equipment processing fiber stub |
| CN102922237A (en) * | 2012-11-05 | 2013-02-13 | 大连东信大型轴承滚子有限公司 | Technology for processing spherical roller of extra large size bearing |
| CN103419100A (en) * | 2013-06-21 | 2013-12-04 | 杭州人本中型轴承有限公司 | Bearing outer ring grinding process |
| CN103419100B (en) * | 2013-06-21 | 2015-09-16 | 杭州人本中型轴承有限公司 | A kind of bearing outer ring grinding process |
| CN103753359A (en) * | 2013-12-16 | 2014-04-30 | 海宁奇晟轴承有限公司 | Outer peripheral face polishing machine for bearing outer ring |
| CN103753359B (en) * | 2013-12-16 | 2016-07-06 | 海宁奇晟轴承有限公司 | A kind of outer peripheral face polisher of bearing outer ring |
| CN103692302B (en) * | 2013-12-23 | 2016-05-11 | 河南金鑫精密轴承制造有限公司 | Precision corner contact ball bearing peripheral milling processing technology |
| 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 |
| CN104476339A (en) * | 2014-12-10 | 2015-04-01 | 重庆耀勇减震器有限公司 | Centreless grinding guide plate debugging tool |
| CN104476339B (en) * | 2014-12-10 | 2016-08-24 | 重庆耀勇减震器有限公司 | Centreless grinding guide plate debugging tool |
| CN106041651A (en) * | 2015-04-02 | 2016-10-26 | 马勒国际有限公司 | Grinding machine |
| CN114102424A (en) * | 2015-04-02 | 2022-03-01 | 马勒国际有限公司 | Grinding machine |
| CN106002499A (en) * | 2016-08-08 | 2016-10-12 | 洛阳轴研科技股份有限公司 | Method for grinding outside diameters of flexible bearing rings |
| CN106002499B (en) * | 2016-08-08 | 2017-11-14 | 洛阳轴研科技股份有限公司 | A kind of Ginding process of flexible bearing lasso external diameter |
| CN114227387A (en) * | 2021-09-06 | 2022-03-25 | 广东东方精工科技股份有限公司 | Method for polishing rubber pad of die cutting unit |
| CN114227387B (en) * | 2021-09-06 | 2022-12-20 | 广东东方精工科技股份有限公司 | Method for polishing rubber pad of die cutting unit |
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