CN114454010B - Unequal-area uniform grinding method for two end surfaces of bearing ring - Google Patents

Unequal-area uniform grinding method for two end surfaces of bearing ring Download PDF

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Publication number
CN114454010B
CN114454010B CN202210223288.3A CN202210223288A CN114454010B CN 114454010 B CN114454010 B CN 114454010B CN 202210223288 A CN202210223288 A CN 202210223288A CN 114454010 B CN114454010 B CN 114454010B
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China
Prior art keywords
grinding
bearing ring
workpiece
end surfaces
ring
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CN202210223288.3A
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Chinese (zh)
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CN114454010A (en
Inventor
唐双晶
杨树新
于安乐
邱贺群
李岩
周蒙豪
李波
王岩
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AVIC Harbin Bearing Co Ltd
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AVIC Harbin Bearing Co Ltd
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Priority to CN202210223288.3A priority Critical patent/CN114454010B/en
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Classifications

    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
    • B24B49/165—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load for grinding tyres

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

A method for uniformly grinding unequal areas of two end surfaces of a bearing ring relates to the technical field of machining. In order to solve the problems that when the existing bearing ring is simultaneously ground, the areas of the two end faces differ too much, the grinding quantity of the small end faces after grinding is large, the grinding areas of the two end faces are unequal, eccentric wear is formed, and the size of the machined bearing ring is greatly deviated, so that the machining quality of a product is poor and the machining efficiency is low. The algorithm is utilized to calculate the rotating speeds of the upper grinding wheel disc, the lower grinding wheel disc and the inner pin ring, and parameters are input into the AC1200F of the high-precision double-end-face grinder, so that the unequal-area grinding processing of the double end faces of the bearing ring can be realized, the workpiece is further ground by adopting proper grinding parameters, the phenomenon that the size of the processed bearing ring is greatly deviated is avoided, the processing quality of the workpiece is improved, and the processing efficiency is improved. The invention is suitable for grinding the two end surfaces of the bearing ring in different areas.

Description

Unequal-area uniform grinding method for two end surfaces of bearing ring
Technical Field
The invention relates to the technical field of machining, in particular to a method for uniformly grinding unequal areas of two end surfaces of a bearing ring.
Background
The end face of the bearing ring is a reference for bearing processing and working, and the quality of the processing quality directly influences the position and shape and position precision of a channel of the bearing ring. When the end faces of the three-half inner ring and the tapered roller ferrule of the ball bearing are ground by a double-end-face grinding machine, the areas of the two end faces differ too much, the grinding quantity of the small end faces after grinding is large, the grinding areas of the two end faces are unequal, eccentric grinding is formed, the position of a post-process channel or a raceway flange is directly caused to be out of tolerance, waste products are generated, and in order to reduce the rejection rate, the grinding quantity can only be increased, and the quality and the efficiency of the post-process channel and raceway processing are affected;
in summary, when the existing bearing ring is simultaneously ground, because the area difference of the two end faces is too large, the grinding quantity of the small end faces after grinding is large, the grinding areas of the two end faces are not equal, so that eccentric grinding is formed, and the size of the machined bearing ring is greatly deviated, so that the problems of poor machining quality and low machining efficiency of the product are caused.
Disclosure of Invention
The invention provides a method for uniformly grinding the two end surfaces of a bearing ring in different areas, which aims at solving the problems that when the two end surfaces of the bearing ring are simultaneously ground, the areas of the two end surfaces are too large, the grinding quantity of the small end surfaces is large after grinding, the grinding areas of the two end surfaces are unequal, so that eccentric grinding is formed, and the size of the machined bearing ring is greatly deviated, so that the machining quality of a product is poor and the machining efficiency is low.
The invention discloses a method for uniformly grinding unequal areas of two end surfaces of a bearing ring, which comprises the following specific steps:
step one, selecting a high-precision double-end-face grinder AC1200F;
step two, calculating the area ratio S/S of two grinding end surfaces according to the structural size of the annular part of the bearing ring;
wherein S: large end surface grinding area of the workpiece; s: the small end surface grinding area of the workpiece;
step three, setting the rotating speed n of the inner pin ring 3 ；
Fourthly, utilizing the radius R of the inner pin ring and the radius R of the outer pin ring to revolve the workpiece at the revolution speed N Worker's work Calculated, the calculation is shown as follows:
N worker's work : revolution speed of workpiece
Inner pin ring radius: r is (r)
Outer pin ring radius: r is R;
step five, according to the area ratio of the two grinding end surfaces calculated in the step two and the revolution speed N of the workpiece calculated in the step four Worker's work Substituted into the following formula II:
s: large end surface grinding area of the workpiece;
s: the small end surface grinding area of the workpiece;
n: the relative rotation speed of the large end surface of the part and the surface of the grinding wheel;
n: the relative rotation speed of the small end surface of the part and the surface of the grinding wheel;
calculating the numerical values of N and N;
step six, when the large end face of the bearing ring is placed upwards, the N calculated in the step five is the rotating speed N of the upper grinding wheel disc 1 The method comprises the steps of carrying out a first treatment on the surface of the n is the rotation speed n of the lower grinding wheel disc 2 ；
Setting the grinding pressure of an AC1200F high-precision double-end-face grinder, and performing grinding processing of unequal areas of the two ends of the bearing ring after inputting the parameters into the machine;
further, the rotation speed n of the upper grinding wheel disc in the step six 1 Equal to 50 r/min-70 r/min;
further, the rotation speed n of the inner pin ring in the third step 3 Equal to 25 r/min-35 r/min;
further, in the sixth step, when the small end face of the bearing ring is placed upwards, N is N 2 N is n 1 ；
Further, the grinding pressure in the step seven is 200N-400N.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects of the prior art, calculates the rotating speeds of the upper grinding wheel disc, the lower grinding wheel disc and the inner pin ring by using the algorithm, and inputs parameters into the AC1200F of the high-precision double-end-face grinder, thereby realizing the grinding processing of unequal areas of the two end faces of the bearing ring, further adopting proper grinding parameters to grind the workpiece, avoiding the phenomenon of larger deviation of the size of the processed bearing ring, improving the processing quality of the workpiece and improving the processing efficiency.
Drawings
FIG. 1 is a front view of the present invention in operation using a high precision double end face grinder AC1200F;
FIG. 2 is a top cross-sectional view of the present invention in operation with a high precision double-ended grinding machine AC1200F;
wherein an upper grinding wheel disc 1, a lower grinding wheel disc 2 and a workpiece 3.
Detailed Description
The first embodiment is as follows: referring to fig. 1 and 2, a method for uniformly grinding unequal areas of two end surfaces of a bearing ring according to the present embodiment is described, and the specific method is as follows:
step one, selecting a high-precision double-end-face grinder AC1200F;
step two, calculating the area ratio S/S of two grinding end surfaces according to the structural size of the annular part of the bearing ring;
wherein S: large end surface grinding area of the workpiece; s: the small end surface grinding area of the workpiece;
step three, setting the rotating speed n of the inner pin ring 3 ；
Fourthly, utilizing the radius R of the inner pin ring and the radius R of the outer pin ring to revolve the workpiece at the revolution speed N Worker's work Calculated, the calculation is shown as follows:
N worker's work : revolution speed of workpiece
Inner pin ring radius: r is (r)
Outer pin ring radius: r is R;
step five, according to the area ratio of the two grinding end surfaces calculated in the step two and the revolution speed N of the workpiece calculated in the step four Worker's work Substituted into the following formula II:
s: large end surface grinding area of the workpiece;
s: the small end surface grinding area of the workpiece;
n: the relative rotation speed of the large end surface of the part and the surface of the grinding wheel;
n: the relative rotation speed of the small end surface of the part and the surface of the grinding wheel;
calculating the numerical values of N and N;
step six, when the large end face of the bearing ring is placed upwards, the N calculated in the step five is the rotating speed N of the upper grinding wheel disc 1 1 The method comprises the steps of carrying out a first treatment on the surface of the n is the rotation speed n of the lower grinding wheel disc 2 2 ；
Setting the grinding pressure of an AC1200F high-precision double-end-face grinder, and performing grinding processing of unequal areas of the two ends of the bearing ring after inputting the parameters into the machine;
in this embodiment, the machining principle of the high-precision double-end-face grinder AC1200F is shown in fig. 1, and the grinding system consists of an upper grinding wheel disc 1, a lower grinding wheel disc 2 and a planetary workpiece clamp system. The grinding wheel adopts a Cubic Boron Nitride (CBN) grinding disc. The workpiece 3 is mounted in a spacer disc on the lower grinding wheel disc and is pressurized by the upper grinding wheel disc 1. The grinding process is that the upper and lower grinding wheel discs rotate in opposite directions, the workpiece in the middle isolation disc rotates along with the inner pin ring, and planetary motion is carried out in the upper and lower grinding wheel discs in the middle of the inner and outer pin rings, so that the grinding of two end faces of the workpiece 3 is realized.
The second embodiment is as follows: the present embodiment is further limited to the grinding method according to the first embodiment, and the method for uniformly grinding the two end surfaces of the bearing ring with different areas according to the present embodiment, wherein the step six is described as followsRotational speed n 1 Equal to 50 r/min-70 r/min.
And a third specific embodiment: the present embodiment is further limited to the grinding method according to the first embodiment, and the method for uniformly grinding the two end surfaces of the bearing ring with different areas according to the present embodiment, wherein the rotation speed n of the inner pin ring in the third step is as follows 3 Equal to 25 r/min-35 r/min.
The specific embodiment IV is as follows: referring to fig. 1 and 2, the present embodiment is further limited to the grinding method according to the first embodiment, and the method for uniformly grinding the two end surfaces of the bearing ring with unequal areas according to the present embodiment, wherein N is N when the small end surface of the bearing ring is placed upwards in the sixth step 2 N is n 1 。
Fifth embodiment: the present embodiment is further limited to the grinding method according to the first embodiment, and the method for uniformly grinding the two end surfaces of the bearing ring according to the present embodiment, wherein the grinding pressure in the seventh step is 200N to 400N, will be described with reference to fig. 1 and 2.

Claims (5)

1. A method for uniformly grinding unequal areas of two end surfaces of a bearing ring is characterized by comprising the following steps: the specific method comprises the following steps:
step one, selecting a high-precision double-end-face grinder AC1200F;
step two, calculating the area ratio S/S of two grinding end surfaces according to the structural size of the annular part of the bearing ring;
s is the large end surface grinding area of the workpiece; s is the small end surface grinding area of the workpiece;
step three, setting the rotating speed n of the inner pin ring 3 ；
Fourthly, utilizing the radius R of the inner pin ring and the radius R of the outer pin ring to revolve the workpiece at the revolution speed N Worker's work Calculated, the calculation is shown as follows:
N worker's work : revolution speed of workpiece
Inner pin ring radius: r is (r)
Outer pin ring radius: r is R;
step five, according to the area ratio of the two grinding end surfaces calculated in the step two and the revolution speed N of the workpiece calculated in the step four Worker's work Substituted into the following formula (2):
s, grinding the large end surface of the workpiece;
s is the small end surface grinding area of the workpiece;
n: the relative rotation speed of the large end surface of the part and the surface of the grinding wheel;
n: the relative rotation speed of the small end surface of the part and the surface of the grinding wheel;
calculating the numerical values of N and N;
step six, when the large end face of the bearing ring is placed upwards, N calculated in the step five is the rotating speed N of the upper grinding wheel disc (1) 1 The method comprises the steps of carrying out a first treatment on the surface of the n is the rotation speed n of the lower grinding wheel disc (2) 2 ；
And seventhly, setting the grinding pressure of the AC1200F high-precision double-end-face grinder, and performing grinding processing of unequal areas of the two ends of the bearing ring after inputting the parameters into the machine.
2. The method for homogenizing the unequal areas of the two end surfaces of the bearing ring according to claim 1, which is characterized in that: the rotating speed n of the upper grinding wheel disc in the step six 1 Equal to 50 r/min-70 r/min.
3. The method for homogenizing the unequal areas of the two end surfaces of the bearing ring according to claim 1, which is characterized in that: the rotating speed n of the inner pin ring in the third step 3 Equal to 25 r/min-35 r/min.
4. A bearing ring double-sided tape as defined in claim 1The equal area uniform grinding method is characterized in that: in the step six, when the small end face of the bearing ring is placed upwards, N is N 2 N is n 1 。
5. The method for homogenizing the unequal areas of the two end surfaces of the bearing ring according to claim 1, which is characterized in that: the grinding pressure in the step seven is 200N-400N.
CN202210223288.3A 2022-03-07 2022-03-07 Unequal-area uniform grinding method for two end surfaces of bearing ring Active CN114454010B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02167658A (en) * 1988-12-16 1990-06-28 Ngk Insulators Ltd Method and device for grinding both end faces of ceramics
CN102229077A (en) * 2011-06-21 2011-11-02 武汉华夏精冲技术有限公司 High-precision double-sided grinding method and machine of annular parts with unequal areas of two end surfaces
CN207206024U (en) * 2017-08-14 2018-04-10 瓦房店远东轴承股份有限公司 A kind of 9 class bearing lasso Double End difference grinding attachments
JP2019098437A (en) * 2017-11-29 2019-06-24 株式会社ナガセインテグレックス Double-ended grinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02167658A (en) * 1988-12-16 1990-06-28 Ngk Insulators Ltd Method and device for grinding both end faces of ceramics
CN102229077A (en) * 2011-06-21 2011-11-02 武汉华夏精冲技术有限公司 High-precision double-sided grinding method and machine of annular parts with unequal areas of two end surfaces
CN207206024U (en) * 2017-08-14 2018-04-10 瓦房店远东轴承股份有限公司 A kind of 9 class bearing lasso Double End difference grinding attachments
JP2019098437A (en) * 2017-11-29 2019-06-24 株式会社ナガセインテグレックス Double-ended grinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
差速双端面磨床磨削量的测量及工艺调整;师D;;轴承(02);全文 *

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