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Grinding and finishing process of integral peach-shaped groove of bearing ring

A technology for bearing rings and channels, which is applied in the field of peach-shaped channel grinding and lapping technology, can solve the problems of integral peach-shaped channel grinding, etc., and achieve the goal of improving accuracy, improving surface quality, and improving waviness Effect

Active Publication Date: 2017-08-25
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the shortcomings of the existing integral peach-shaped channel grinding and superfinishing, and provides an integral peach-shaped channel grinding and finishing process for bearing rings

Method used

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  • Grinding and finishing process of integral peach-shaped groove of bearing ring

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Experimental program
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Effect test

specific Embodiment approach 1

[0033] Specific implementation mode 1: In this implementation mode, the overall peach-shaped channel grinding and lapping process of the bearing ring is carried out according to the following steps:

[0034] 1. Use high-precision CNC cylindrical grinding equipment to grind the groove of the bearing ring into a peach shape;

[0035] 2. Overall peach-shaped channel shape detection:

[0036] ①Detect the radius of curvature R of the channel: tilt the circular curvature sphere 45° along the center line, remove about 1 / 3 of the spherical surface of the circular curvature sphere, and then use the curvature sphere to detect the radius of curvature R of the channel by coloring;

[0037] ② Use a profiler to detect the eccentricity e of the channel position;

[0038] The workpieces whose channel curvature radius R or channel position eccentricity e do not meet the requirements are ground again by readjusting the parameters with high-precision CNC cylindrical grinding equipment; the chan...

specific Embodiment approach 2

[0045] Embodiment 2: This embodiment differs from Embodiment 1 in that the width of the whetstone in Step ① of Step 3 is 0.8-1.2 mm wider than half of the overall peach-shaped channel. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the model of the oilstone in step three is SG / SCW400#. Others are the same as in the first embodiment.

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Abstract

The invention relates to a grinding and finish lapping process for a bearing ring whole peach type channel. The defect of existing grinding and superfinishing of the whole peach type channel is overcome. The process comprises the steps that firstly, high-precision numerical control inner circle grinding equipment is selected, and a bearing ring channel is ground to be in a peach type; secondly, the shape of the whole peach type channel is detected; thirdly, the whole peach type channel is subjected to rough lapping; and fourthly, the whole peach type channel is subjected to finish lapping. According to the process, the detection accuracy is greatly improved, the using property and the surface quality of a bearing are also improved. The grinding and finish lapping process is used for the field of bearing ring grinding and finish lapping.

Description

technical field [0001] The invention relates to a peach-shaped channel grinding and lapping process. Background technique [0002] Grinding and finishing processing of the overall peach-shaped groove has always been a difficult problem in processing, as follows: [0003] 1. Using manual equipment, by adjusting the position of the grinding wheel relative to the dresser, the grinding wheel is trimmed into a peach shape for grinding, but the position of the groove cannot be guaranteed. [0004] 2. The peach-shaped channel detection is carried out by using the groove-shaped template, which is difficult to manufacture and cannot meet the accuracy requirements, resulting in inaccurate detection. [0005] 3. The finishing process of the channel adopts the processing method of felt wheel polishing. Felt wheel polishing can only improve the surface roughness of the workpiece, but it will destroy the shape and precision of the channel surface. At the same time, it will cause tensil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 唐双晶马炳辉孙慧广王福成
Owner AVIC HARBIN BEARING
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