High-precision bearing production technology for rail transit

A technology for bearing production and rail transportation, applied in the direction of grinding workpiece supports, etc., can solve the problems of complex processing technology of precision bearings, low processing quality, large enterprise cost, etc., to achieve high processing quality, improve workpiece quality, and high processing efficiency. Effect

Inactive Publication Date: 2019-03-15
柳州中通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the processing technology of precision bearings is complicated, the processing quality is not high, and it is difficult to control, which brings a lot of cost to the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: A production process for high-precision bearings for rail transit, comprising the following steps:

[0021] Incoming inspection—outer / inner ring blank—heat treatment—outer / inner ring end face grinding—centerless outer circle grinding—fine grinding outer circle—outer ring rib grinding (inner ring raceway grinding)— - Outer ring raceway grinding (Inner ring rib grinding - Inner diameter grinding) - Inner / outer ring channel ultra-finishing - Cleaning - Inner / outer diameter detection - Ultrasonic cleaning - Sorting and matching ——roller installation——riveting——radial clearance detection—vibration measurement—laser marking—finished product cleaning—oil immersion antirust—appearance inspection—packaging—sampling inspection—warehouse storage .

[0022] In the end face grinding, the ferrule enters between the end faces of two rotating grinding wheels, and the two end faces of the ferrule are ground at the same time. The shaving line difference is controlled with...

Embodiment 2

[0028] Embodiment 2: A kind of high-precision bearing production process for rail transit, comprising the following steps:

[0029] Incoming inspection—outer / inner ring blank—heat treatment—outer / inner ring end face grinding—centerless outer circle grinding—fine grinding outer circle—outer ring rib grinding (inner ring raceway grinding)— - Outer ring raceway grinding (Inner ring rib grinding - Inner diameter grinding) - Inner / outer ring channel ultra-finishing - Cleaning - Inner / outer diameter detection - Ultrasonic cleaning - Sorting and matching ——roller installation——riveting——radial clearance detection—vibration measurement—laser marking—finished product cleaning—oil immersion antirust—appearance inspection—packaging—sampling inspection—warehouse storage .

[0030]In the end face grinding, the ferrule enters between the end faces of two rotating grinding wheels, and the two end faces of the ferrule are ground at the same time. The shaving line difference is controlled wi...

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Abstract

The invention discloses a high-precision bearing production technology for rail transit. The high-precision bearing production technology comprises the following steps of: carrying out receiving inspection; selecting an outer/inner ring blank; carrying out heat treatment; grinding an outer/inner ring end face; carrying out centerless grinding on an excircle; carrying out fine grinding on the excircle; grinding the flange of an outer ring (grinding an inner ring raceway); grinding an outer ring raceway (grinding the flange of an inner ring and grinding the inner diameter); superfinishing the inner/outer ring raceway; cleaning; inspecting the inner/outer diameter; carrying out ultrasonic cleaning; sorting and assembling; assembling a roller; riveting and pressing; carrying out radial internal clearance inspection; carrying out vibration measurement; carrying out laser marking; cleaning a finished product; carrying out oil immersion and dust prevention; carrying out appearance inspection;packaging; carrying out causal inspection; and putting in a storehouse for storage. The high-precision bearing production technology has high processing efficiency, stable processing process, high processing quality and high precision.

Description

technical field [0001] The invention relates to the field of precision bearings, in particular to a production process for high-precision bearings for rail transit. Background technique [0002] According to the ISO classification standard, precision bearings are divided into: P0, P6, P5, P4, P2. The grades increase in turn, among which P0 is ordinary precision, and other grades are precision grades. Of course, different classification standards and different types of bearings have different classification methods, but the meaning is the same. In terms of the performance of precision bearings, the rotating body is required to have high runout accuracy, high-speed rotation, and small friction and friction changes. [0003] In the prior art, the processing technology of precision bearings is complex, the processing quality is not high, and it is difficult to control, which brings a lot of cost to the enterprise. Contents of the invention [0004] The purpose of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B41/06
CPCB24B1/00B24B41/061
Inventor 陈建明陈红姬
Owner 柳州中通科技有限公司
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