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Processing method for bronze bearing retainer

A processing method and technology for bronze bearings, which are applied in the processing field of bearing cages, can solve the problems of cracks in the lock opening of bronze cages, easy stress generation, and inability to guarantee the accuracy of bronze cages.

Active Publication Date: 2015-03-04
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing bronze cage is easy to produce stress and the surface is hardened by cold work in the process of machining, and there are cracks at the lock of the bronze cage, which cannot guarantee the accuracy of the bronze cage, so as to provide a bronze bearing The processing method of the cage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0060] Specific implementation method 1: In this implementation method, when the bronze bearing cage is a rolling locking type, the processing method of the bronze cage is specifically completed according to the following steps:

[0061] 1. Forming: Drill the bronze ingot with a high-speed steel drill bit to obtain a bronze with an inner diameter of 41.5mm~41.6mm; then use the outer diameter of the bronze with an inner diameter of 41.5mm~41.6mm to obtain an inner diameter of 41.5mm~ 41.6mm bronze tube with an outer diameter of 57.2mm to 57.3mm; then use an end face turning tool to cut the end face of a bronze cage with a flat inner diameter of 41.5mm to 41.6mm and an outer diameter of 57.2mm to 57.3mm; then use a cutting knife to cut , to obtain a bronze cage with a formed wide band size of 17.9mm to 18.0mm;

[0062] 2. Coarsely grinding the outer diameter: Use a centerless cylindrical grinder to grind the bronze cage with a formed wide band size of 17.9mm to 18.0mm to obtain ...

specific Embodiment approach 2

[0088] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 2, a centerless cylindrical grinder is used to grind the bronze cage with a formed broadband size of 17.9 mm to 18.0 mm, and the grinding wheel speed is 1440r / min. The speed of the guide wheel is 58r / min. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0089] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the cutting speed of the lathe in step three is 70m / min~130m / min, the tool feed rate is 0.2mm / time~0.25mm / Second-rate. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a processing method for a bronze bearing retainer, relates to a processing method for a bearing retainer, and aims at solving the problems that an existing bronze bearing retainer easily generates stress and a surface cold-work hardening layer in the machining process, cracks are generated on a preliminary shaft of the bronze retainer, and the accuracy of the bronze retainer cannot be ensured. When the bronze bearing retainer is of a rolling lock point type, the processing method comprises the following steps: molding; coarsely grinding the outer diameter; finely turning the front end surface; finely turning the rear end surface; finely turning the inner diameter; turning a chamfer angle; marking; drilling; broaching a square hole; finally grinding the outer diameter; finally turning the inner diameter; removing burrs; polishing; removing stress; chopping or grinding lock points; plating silver. When the bronze bearing retainer is of an inner step structure type, the processing method comprises the following steps: molding; coarsely grinding the outer diameter; finely turning the front end surface; finely turning the rear end surface; finely turning the inner diameter; turning a chamfer angle; marking; drilling; broaching a square hole; finally grinding the outer diameter; finally turning the inner diameter; removing stress; coping the outer diameter; turning an inner step; removing burrs; polishing; plating silver. The processing method for the bronze bearing retainer can be obtained.

Description

technical field [0001] The invention relates to a processing method of a bearing cage. Background technique [0002] The R0.8 roller is used to roll the lock point of the 42306N4Q cage, the width of the bezel is about 1.2mm, and the depth of the bezel is about 0.55mm. The quality of the first part was checked with a 5x magnifying glass, and the re-inspection found that there were cracks in the lock under a 42x magnifying glass, and 100% inspection under a stereo microscope found that all the locks of this batch of cages had cracks. [0003] 2. For the 32916Q3T2 aluminum bronze cage, after the pocket broaching is completed, the roundness of the outer diameter is within the acceptable range specified by the process. After processing the inner circle of the cage to reduce weight, the elliptical deformation of the inner and outer diameters of the cage is obvious, and the maximum value of the ellipse exceeds 0.15mm, unable to meet the process requirements. [0004] It can be se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/003
Inventor 李迎丽何金光赵开礼刘伟安敏刘明张长之范志成刘颖志杜杰
Owner AVIC HARBIN BEARING
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