CN114770380B - Control method for bearing machining and method for determining grinding wheel feeding amount - Google Patents

Control method for bearing machining and method for determining grinding wheel feeding amount Download PDF

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Publication number
CN114770380B
CN114770380B CN202210425353.0A CN202210425353A CN114770380B CN 114770380 B CN114770380 B CN 114770380B CN 202210425353 A CN202210425353 A CN 202210425353A CN 114770380 B CN114770380 B CN 114770380B
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groove
distance
longitudinal
grinding wheel
curvature
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CN114770380A (en
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尹延经
徐润润
韩涛
李文超
张振强
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Luoyang Bearing Research Institute Co Ltd
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Luoyang Bearing Research Institute Co Ltd
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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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • 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
    • 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
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

The invention relates to a control method for bearing processing and a method for determining grinding wheel feed, belonging to the technical field of bearing processing; according to the triangle equivalent to the groove curvature center, the groove curvature radius and the locking notch height in the primary processing process of bearing processing, calculating the transverse distance from the groove curvature center to the locking notch in the primary processing; according to the height of the locking notch, the curvature center of the groove and the curvature radius of the groove of the preset bearing secondary machining are equivalent to form a triangle, and the longitudinal distance from the curvature center of the groove of the secondary machining to the locking notch is calculated; and calculating according to the longitudinal distance from the curvature center of the secondary processing groove to the locking notch and the curvature radius of the primary processing groove to obtain the longitudinal feeding amount of the grinding wheel. The invention can directly determine the longitudinal feeding of the grinding wheel according to the curvature radius of the groove, the locking height of the primary processing, the preset curvature radius of the secondary processing groove and the transverse feeding quantity of the grinding wheel to process, and ensure that the cross section of the processed groove is a complete arc curve so as to reduce the workload of the grinding process.

Description

Control method for bearing machining and method for determining grinding wheel feeding amount
Technical Field
The invention relates to a control method for bearing machining and a method for determining grinding wheel feeding amount, and belongs to the technical field of bearing machining.
Background
In the bearing machining process, channel grinding is an important link in the bearing machining process. The channel grinding is not performed in one step, and often secondary grinding is required, so that the deformation amount in the bearing machining process can be reduced by multiple grinding processes. However, during secondary grinding, the channel position and the channel curvature radius cannot be completely consistent with the previous parameters, so that the phenomenon that the channel position and the channel curvature radius change is unavoidable, and as a result, the cross-sectional shape of the channel is not a complete arc curve, but two or more arc curves can be caused. Further grinding is required to ensure that the cross-sectional shape of the channel is a complete arc curve, resulting in increased grinding effort.
Disclosure of Invention
The invention aims to provide a control method for bearing machining and a method for determining the feeding amount of a grinding wheel, which are used for solving the problem that workload is increased due to the fact that a plurality of sections of circular arcs exist in the secondary channel grinding process.
In order to achieve the above object, the present invention has the following technical and beneficial effects:
the invention relates to a method for determining the feeding amount of a grinding wheel in bearing processing, which comprises the following steps:
1) Acquiring a first groove curvature radius, a locking notch high point position and a first groove curvature center of a bearing during one-time processing;
2) Taking the transverse distance from the curvature center of the first groove to the high point of the locking notch as a first transverse distance, and taking the longitudinal distance from the curvature center of the first groove to the high point of the locking notch as a first longitudinal distance; determining a first longitudinal distance through the first groove curvature radius and the locking notch high point position, and determining a first transverse distance according to the first longitudinal distance and the first groove curvature radius;
3) Acquiring a second groove curvature radius of a bearing to be processed, which is processed secondarily after primary processing, and acquiring transverse feed quantity of a grinding wheel when the bearing to be processed is processed secondarily; presetting a second groove curvature center of a bearing to be machined, wherein the transverse distance from the second groove curvature center to a locking notch high point is a second transverse distance, and the longitudinal distance from the second groove curvature center to the locking notch high point is a second longitudinal distance; determining a second transverse distance through the first transverse distance and the transverse feeding amount of the grinding wheel, and determining a second longitudinal distance according to the second transverse distance and the second groove curvature radius;
4) And enabling the position of the locking notch high point in secondary processing to coincide with the position of the locking notch high point in primary processing, and calculating the difference value between the first longitudinal distance and the second longitudinal distance, wherein the difference value is the longitudinal feeding amount of the grinding wheel.
The beneficial effects of the technical scheme are as follows: the method for determining the feeding amount of the grinding wheel during bearing processing provided by the invention directly determines the longitudinal feeding amount of the grinding wheel according to the curvature radius of the groove, the locking notch high point of primary processing, the preset curvature radius of the groove of secondary processing and the transverse feeding amount of the grinding wheel. The longitudinal feeding amount of the grinding wheel is calculated under the condition that the locking notch high points of the primary processing and the secondary processing are the same, the bearing is subjected to the secondary processing by the longitudinal feeding amount, and the channel section of the primary processing can be completely ground, so that the channel section of the secondary processing is in a complete arc curve, and the workload of the grinding process is reduced.
Further, in the step 2), the first lateral distance is calculated by the following formula:
Figure BDA0003608273930000021
wherein l 1 For a first lateral distance, R 1 Is the curvature radius of the first groove, t 1 Is the height of the locking notch.
The beneficial effects of the technical scheme are as follows: the number relation among the first transverse distance, the first groove curvature radius and the locking notch height is established through the triangle Pythagorean theorem during one-time processing, and the calculation is simpler and faster.
Further, in the step 3), the second longitudinal distance is calculated by the following formula:
Figure BDA0003608273930000022
wherein l 2 For a second longitudinal distance, R 2 For the second groove radius of curvature, R 1 Is the curvature radius of the first groove, t 1 And a is the transverse feed amount of the grinding wheel for the locking height.
The beneficial effects of the technical scheme are as follows: the number relation among the second longitudinal distance, the second groove curvature and the locking notch height during secondary processing is established through the triangle Pythagorean theorem, and the longitudinal distance from the groove curvature center to the locking notch height during secondary processing can be rapidly calculated.
Further, the longitudinal feed rate of the grinding wheel is calculated by the following formula:
Figure BDA0003608273930000023
wherein b is the longitudinal feeding amount of the grinding wheel.
The beneficial effects of the technical scheme are as follows: the obtained workpiece parameters of primary machining and the preset workpiece parameters of secondary machining are input into the mathematical expression for calculating the longitudinal feeding amount, and the longitudinal feeding amount of the grinding wheel during secondary machining can be accurately obtained only by simple mathematical calculation, so that the calculation is simple, and the workload of bearing machining is greatly reduced.
Further, determining a first groove bottom diameter according to the first groove curvature radius, and determining a second groove bottom diameter according to the second groove curvature radius; calculating the difference between the first groove bottom diameter and the second groove bottom diameter according to the longitudinal feeding amount of the grinding wheel by the following formula:
Δ＝2(b+R 2 -R 1 )
wherein Δ is the difference between the first trench bottom diameter and the second trench bottom diameter.
The invention also provides a control method for bearing processing, which comprises the following steps:
a, acquiring a first groove curvature radius, a locking notch high point position and a first groove curvature center of a bearing during one-time processing;
b, taking the transverse distance from the curvature center of the first groove to the high point of the locking notch as a first transverse distance, and taking the longitudinal distance from the curvature center of the first groove to the high point of the locking notch as a first longitudinal distance; determining a first longitudinal distance through the first groove curvature radius and the locking notch high point position, and determining a first transverse distance according to the first longitudinal distance and the first groove curvature radius;
c, obtaining a second groove curvature radius of the bearing to be machined, which is machined again after primary machining, and obtaining transverse feed quantity of the grinding wheel when the bearing to be machined is machined again; presetting a second groove curvature center of a bearing to be machined, wherein the transverse distance from the second groove curvature center to a locking notch high point is a second transverse distance, and the longitudinal distance from the second groove curvature center to the locking notch high point is a second longitudinal distance; determining a second transverse distance through the first transverse distance and the transverse feeding amount of the grinding wheel, and determining a second longitudinal distance according to the second transverse distance and the second groove curvature radius;
d, enabling the position of the locking notch high point during secondary processing to coincide with the position of the locking notch high point during primary processing, and calculating a difference value between the first longitudinal distance and the second longitudinal distance, wherein the difference value is the longitudinal feeding amount of the grinding wheel;
e, controlling the grinding wheel to process the bearing according to the longitudinal feeding amount and the transverse feeding amount of the grinding wheel, judging whether the re-processed bearing channel reaches a set processing standard, and if not, repeating the steps A-D for re-processing.
The beneficial effects of the technical scheme are as follows: the control method for bearing machining provided by the invention directly determines the longitudinal feeding amount of the grinding wheel according to the curvature radius of the groove, the high point of the locking notch, the preset curvature radius of the groove for secondary machining and the transverse feeding amount of the grinding wheel. The longitudinal feeding amount of the grinding wheel is calculated under the condition that the locking notch high points of the primary processing and the secondary processing are the same, the bearing is subjected to the secondary processing by the longitudinal feeding amount, and the channel section of the primary processing can be completely ground, so that the channel section of the secondary processing is in a complete arc curve, and the workload of the grinding process is reduced.
Further, in the step B, the first lateral distance is calculated by the following formula:
Figure BDA0003608273930000041
wherein l 1 For a first lateral distance, R 1 Is the curvature radius of the first groove, t 1 Is the height of the locking notch.
Further, in the step C, the second longitudinal distance is calculated by the following formula:
Figure BDA0003608273930000042
wherein l 2 For a second longitudinal distance, R 2 For the second groove radius of curvature, R 1 Is the curvature radius of the first groove, t 1 And a is the transverse feed amount of the grinding wheel for the locking height.
Further, the longitudinal feed rate of the grinding wheel is calculated by the following formula:
Figure BDA0003608273930000043
wherein b is the longitudinal feeding amount of the grinding wheel.
Further, determining a first groove bottom diameter according to the first groove curvature radius, and determining a second groove bottom diameter according to the second groove curvature radius; calculating the difference between the first groove bottom diameter and the second groove bottom diameter according to the longitudinal feeding amount of the grinding wheel by the following formula:
Δ＝2(b+R 2 -R 1 )
wherein Δ is the difference between the first trench bottom diameter and the second trench bottom diameter.
Drawings
FIG. 1 is a schematic diagram of bearing channel variation during secondary grinding in an embodiment of the method;
FIG. 2 is a schematic diagram of the change in displacement of the grinding wheel during secondary grinding in an embodiment of the method;
FIG. 3 is a schematic diagram of the final channel state after the second grinding in the method embodiment.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
Method embodiment for determining grinding wheel feed:
the invention provides a method for determining the feeding amount of a grinding wheel in bearing processing, which is characterized in that when channel grinding is carried out, the channel position and the channel curvature radius of a first grinding and a second grinding are correspondingly different, and in order to avoid the condition that the interface shape of a channel is not a complete arc curve caused by two times of grinding, the longitudinal feeding amount of the grinding wheel is calculated when the channel position or the channel curvature radius is changed, so that the integrity of the bearing during channel grinding is ensured, and the production can be guided in the process of bearing channel grinding.
Specifically, the method for controlling the grinding amount during bearing processing provided by the invention comprises the following steps:
1) The processing parameters during grinding are determined.
As shown in fig. 1, the channel curve of the bearing during the first grinding is an arc line AB; after the second grinding, the channel section shape is the arc CDB in the corresponding graph of the two arc curves; after the second grinding, the channel section shape is a complete arc curve, which corresponds to arc EB in the figure. Determining the radius of curvature R of the groove of the bearing channel during the first grinding from the process file or the actual machining parameters 1 Groove radius of curvature R at the time of second grinding 2 。
2) The infeed a of the grinding wheel is determined.
As shown in fig. 2, the infeed a of the grinding wheel is determined from the process file or the actual machining parameters during the second grinding.
3) And calculating the longitudinal feeding quantity b of the grinding wheel.
To ensure the integrity of the groove, the grinding wheel needs to continue to move longitudinally by the longitudinal feed amount b on the basis of the last movement. As shown in FIG. 3, the high point of the notch for the first grinding is point B in the figure, the notch height is the distance from point B to the lowest point of the arc line AB, i.e. the notch height is t 1 . The high point of the locking notch of the second grinding is also point B in the figure, the height of the locking notch is the distance from the point B to the lowest point of the arc EB, namely the height of the locking notch is t 2 . At the first grinding, the center O is the center of curvature of the groove is known, and the radius of curvature of the groove is known; in the second grinding, the radius of curvature of the groove of the second grinding channel is known according to engineering practice, although on the theoretical basis, the center of curvature of the groove of the second grinding channel, namely O', can be correspondingly calculated under the condition that the radius is known, and then the longitudinal feeding quantity b of the grinding wheel can be calculated. However, calculating the center of curvature of the groove once every grinding with a moving grinding wheel is required, and this results in a large amount of calculation, which is not suitable for engineering practice.
When the longitudinal feed b of the grinding wheel is calculated, the processing parameters during the first grinding are respectively corresponding to the geometric figures, namely Rt delta OFB. The radius R of curvature of the groove of the first grinding can be directly determined according to the processing parameters of the first grinding 1 And a locking notch height t 1 Therefore, in Rt Δofb, the length OF is the difference between the radius at the time OF the first grinding and the lock notch height, and the length OB is the groove radius OF curvature value at the time OF the first grinding, and thus in Rt Δofb, the length OF BF can be calculated by the following formula according to the pythagorean theorem.
l OF ＝R 1 -t 1
l OB ＝R 1
Figure BDA0003608273930000061
So that the number of the components in the product,
Figure BDA0003608273930000062
in the second grinding, the transverse feeding quantity a of the grinding wheel is known, so that the position of the straight line where O' G is located can be determined; in the second grinding, the locking notch high point B is the same as the locking notch high point B in the first grinding, and the position and the length of BG can be determined according to the length of BF determined in the first grinding; then according to the curvature radius R of the groove during the second grinding 2 To be known, rt DeltaO 'GB can be determined, and the length of O' G can be calculated to determine the longitudinal feed b of the grinding wheel. The longitudinal feed b calculated according to Rt delta O' GB can enable the bearing channel to be a complete arc curve after the second grinding, namely an arc EB. In Rt ΔO 'GB, the length of O' G can then be calculated according to Pythagorean theorem by the following formula.
l BG ＝l BF +a
l O′B ＝R 2
Figure BDA0003608273930000063
So that the number of the components in the product,
Figure BDA0003608273930000064
grinding wheel longitudinal feed b=r 1 -t 1 -l O′G I.e.
Figure BDA0003608273930000065
According to the longitudinal feed amount of the grinding wheel, the reduction of the diameter of the new groove bottom of the second grinding compared with the diameter of the original groove bottom of the first grinding can be directly obtained as delta=2 (b+r) 2 -R 1 )。
In this embodiment, the longitudinal direction indicates the direction in which the diameter of the bearing ring moves, i.e., the direction along which the diameter of the grinding wheel moves; transverse refers to the direction of movement along the axis of the grinding wheel. For bearings, the motion of the grinding wheel is in two dimensions, i.e. there is only in-plane motion, and there is no motion (in the direction outwards or inwards) with respect to the z-axis direction outside the xy-axis in fig. 3.
The calculation formula of the longitudinal feed quantity b of the grinding wheel determined by the invention can be utilized to obtain the groove curvature radius, the locking notch height, the groove curvature radius of the second groove grinding and the transverse feed quantity of the grinding wheel during the groove grinding, and the longitudinal feed quantity of the grinding wheel which is ensured to be a complete groove shape during the secondary grinding can be directly calculated.
When the method is used for grinding the inner ring of the angular contact ball bearing, the curvature radius of the groove of the bearing channel in the first grinding is 2.86mm, and the locking notch height is 0.2mm. The radius of curvature of the groove during the second grinding is 2.88mm, and the transverse feeding amount of the grinding wheel is 0.1mm.
In order to ensure the integrity of the channel after the secondary processing, the grinding wheel needs a longitudinal feeding amount b.
Figure BDA0003608273930000071
At this time, the notch high point of the second grinding coincides with the notch high point of the first grinding, and the reduction in the diameter of the new groove bottom of the second grinding compared with the diameter of the original groove bottom of the first grinding is Δ=2× (0.019+2.88-2.86) =0.078 mm. Accordingly, it is possible to determine the relevant grinding parameters that ensure the integrity of the groove, i.e., the grinding wheel should continue to move down by 0.019mm on the basis of the radial displacement of the first groove grinding or the newly formed groove bottom diameter should be reduced by at least 0.078mm on the basis of the groove bottom diameter formed by the first groove grinding.
Control method embodiment:
the invention also provides a control method for bearing processing, according to the grinding wheel longitudinal feed determined by the method for determining the grinding wheel feed for bearing processing, the grinding wheel is controlled to longitudinally move for bearing processing and grinding, after processing, whether a bearing channel reaches a set processing standard is judged, namely whether the radius of curvature of the channel of the bearing reaches a required set value is judged, whether the cross section of the channel is a complete arc line is judged, if not, the longitudinal feed of the grinding wheel is recalculated, and processing is carried out again. The method for determining the feeding amount of the grinding wheel in the bearing processing is already described in the method embodiment, and is not repeated here.

Claims (6)

1. A method for determining the feed rate of a grinding wheel in bearing processing, comprising the steps of:
1) Acquiring a first groove curvature radius, a locking notch high point position and a first groove curvature center of a bearing during one-time processing;
2) Taking the transverse distance from the curvature center of the first groove to the high point of the locking notch as a first transverse distance, and taking the longitudinal distance from the curvature center of the first groove to the high point of the locking notch as a first longitudinal distance; determining a first longitudinal distance through the first groove curvature radius and the locking notch high point position, and determining a first transverse distance according to the first longitudinal distance and the first groove curvature radius; the first lateral distance is calculated by the following formula:
Figure FDA0004164938830000011
wherein l 1 For a first lateral distance, R 1 Is the curvature radius of the first groove, t 1 Is the height of the locking notch;
3) Acquiring a second groove curvature radius of the bearing subjected to secondary processing after primary processing, and acquiring transverse feed quantity of a grinding wheel during secondary processing of the bearing; presetting a second groove curvature center of a bearing to be machined, wherein the transverse distance from the second groove curvature center to a locking notch high point is a second transverse distance, and the longitudinal distance from the second groove curvature center to the locking notch high point is a second longitudinal distance; determining a second transverse distance through the first transverse distance and the transverse feeding amount of the grinding wheel, and determining a second longitudinal distance according to the second transverse distance and the second groove curvature radius; the second longitudinal distance is calculated by the following formula:
Figure FDA0004164938830000012
wherein l 2 For a second longitudinal distance, R 2 For the second groove radius of curvature, R 1 Is the curvature radius of the first groove, t 1 A is the locking height, a is the transverse feeding amount of the grinding wheel;
4) And enabling the position of the locking notch high point in secondary processing to coincide with the position of the locking notch high point in primary processing, and calculating the difference value between the first longitudinal distance and the second longitudinal distance, wherein the difference value is the longitudinal feeding amount of the grinding wheel.
2. The method of determining wheel feed for bearing machining according to claim 1, wherein the wheel feed in the longitudinal direction is calculated by the following formula:
Figure FDA0004164938830000013
wherein b is the longitudinal feeding amount of the grinding wheel.
3. The method of determining wheel feed for bearing machining according to claim 2, wherein the first groove bottom diameter is determined based on a first groove radius of curvature and the second groove bottom diameter is determined based on a second groove radius of curvature; calculating the difference between the first groove bottom diameter and the second groove bottom diameter according to the longitudinal feeding amount of the grinding wheel by the following formula:
Δ＝2(b+R 2 -R 1 )
wherein Δ is the difference between the first trench bottom diameter and the second trench bottom diameter.
4. The control method for bearing machining is characterized by comprising the following steps:
a, acquiring a first groove curvature radius, a locking notch high point position and a first groove curvature center of a bearing during one-time processing;
the transverse distance from the curvature center of the first groove to the high point of the locking notch is a first transverse distance, and the longitudinal distance from the curvature center of the first groove to the high point of the locking notch is a first longitudinal distance; determining a first longitudinal distance through the first groove curvature radius and the locking notch high point position, and determining a first transverse distance according to the first longitudinal distance and the first groove curvature radius; the first lateral distance is calculated by the following formula:
Figure FDA0004164938830000021
wherein l 1 For a first lateral distance, R 1 Is the curvature radius of the first groove, t 1 Is the height of the locking notch;
c, presetting a second groove curvature radius of a bearing to be machined, which is machined again after primary machining, and obtaining transverse feed quantity of a grinding wheel when the bearing to be machined is machined again; presetting a second groove curvature center of a bearing to be machined, wherein the transverse distance from the second groove curvature center to a locking notch high point is a second transverse distance, and the longitudinal distance from the second groove curvature center to the locking notch high point is a second longitudinal distance; determining a second transverse distance through the first transverse distance and the transverse feeding amount of the grinding wheel, and determining a second longitudinal distance according to the second transverse distance and the second groove curvature radius; the second longitudinal distance is calculated by the following formula:
Figure FDA0004164938830000022
wherein l 2 For a second longitudinal distance, R 2 For the second groove radius of curvature, R 1 Is the curvature radius of the first groove, t 1 A is the locking height, a is the transverse feeding amount of the grinding wheel;
d, enabling the position of the locking notch high point during secondary processing to coincide with the position of the locking notch high point during primary processing, and calculating a difference value between the first longitudinal distance and the second longitudinal distance, wherein the difference value is the longitudinal feeding amount of the grinding wheel;
e, controlling the grinding wheel to process the bearing according to the longitudinal feeding amount and the transverse feeding amount of the grinding wheel, judging whether the re-processed bearing channel reaches a set processing standard, and if not, repeating the steps A-D for re-processing.
5. The control method for bearing machining according to claim 4, wherein the longitudinal feed amount of the grinding wheel is calculated by the following formula:
Figure FDA0004164938830000023
wherein b is the longitudinal feeding amount of the grinding wheel.
6. The method of controlling bearing machining according to claim 5, wherein the first groove bottom diameter is determined based on a first groove radius of curvature and the second groove bottom diameter is determined based on a second groove radius of curvature; calculating the difference between the first groove bottom diameter and the second groove bottom diameter according to the longitudinal feeding amount of the grinding wheel by the following formula:
Δ＝2(b+R 2 -R 1 )
wherein Δ is the difference between the first trench bottom diameter and the second trench bottom diameter.
CN202210425353.0A 2022-04-21 2022-04-21 Control method for bearing machining and method for determining grinding wheel feeding amount Active CN114770380B (en)

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JP3861659B2 (en) * 2001-11-08 2006-12-20 日本精工株式会社 Super finishing method of gothic arc groove
SE0302706L (en) * 2003-10-14 2005-01-25 Skf Ab A method for achieving improved roller contact surfaces
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
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CN105364639B (en) * 2015-11-13 2017-08-25 中航工业哈尔滨轴承有限公司 Bearing ring entirety peach type raceway groove grinding and lapping technique
JP6911547B2 (en) * 2017-06-08 2021-07-28 日本精工株式会社 Super finishing method for grooves and manufacturing method for bearings
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