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Surface quality improving method for non-ferrous metal retainer

A non-ferrous metal and surface quality technology, applied in the field of surface quality improvement of non-ferrous metal cages, can solve the problems of scratched steel balls, non-smooth surface of the cage, cutting marks, bumps, etc., to improve application performance and surface finish. , the effect of weakening cutting marks

Inactive Publication Date: 2018-12-28
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is to solve the problem that the surface of the existing cage is not smooth after polishing, and the cutting marks left by machining are still obvious, and the improvement of the surface finish is not obvious; the surface of the cage, especially the sharper chamfered parts, often has bumps Subsequent repairs are required; the sharp edge at the locking point of the cage cannot meet the smooth process requirements after finishing, and the steel ball will inevitably be scratched at the locking point of the cage during the use of the bearing, and it is necessary to further remove the sharp edge with a manual burr knife. To solve the problem of edge removal, and provide a method for improving the surface quality of non-ferrous metal cages

Method used

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  • Surface quality improving method for non-ferrous metal retainer
  • Surface quality improving method for non-ferrous metal retainer
  • Surface quality improving method for non-ferrous metal retainer

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specific Embodiment approach 1

[0016] Specific Embodiment 1: In this embodiment, a method for improving the surface quality of a non-ferrous metal cage is carried out in the following steps:

[0017] 1. Select 15×15 bullet-shaped resin sintered abrasives with a particle size of 2000 mesh as the finishing material for rough finishing, and select 2000 mesh Ф2mm white spherical alumina sintered abrasive as the finishing material for fine finishing;

[0018] 2. Use baffle-type tooling to separate the non-ferrous metal cage, and then use the rough-finish finishing material to rough-finish the non-ferrous metal cage with a finishing machine. The rough-finish time is 3.5 to 4.5 hours; Then use the finishing material to finish finishing the non-ferrous metal cage with a finishing machine. The finishing time is 2.5 to 3.5 hours. After cleaning, the surface quality of the non-ferrous metal cage can be improved.

[0019] In this embodiment, the baffle-type tooling can prevent the cages from colliding with each other w...

specific Embodiment approach 2

[0020] Embodiment 2: This embodiment differs from Embodiment 1 in that: the weight of the finishing material in the rough finishing described in step 2 is 200 kg, and the amount of finishing liquid is 800-1000 mL. Others are the same as the first embodiment.

specific Embodiment approach 3

[0021] Embodiment 3: This embodiment differs from Embodiment 2 in that: the weight of the finishing material in step 2 is 200 kg, and the amount of finishing liquid is 800-1000 mL. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a surface quality improving method for a non-ferrous metal retainer, and solves problems that the surface of a current retainer after polishing is not smooth and a chipping mark reserved by machining is still apparent, and surface smoothness is not apparently improved; bumping damage frequently occurs on the surface of the retainer, especially a sharper chamfering part, and damage repairing treatment is needed later; and the sharp edge of a locking point part of the retainer cannot meet circular and smooth technological requirements after polishing, a phenomenon that asteel ball is scratched by a locking point of the retainer occurs unavoidably in a using process of a bearing, and the sharp edge needs to be further removed by using a manual burr knife. A bullet-like resin polishing material in 2000 meshes of a granularity and 15X15 of a standard and a white ball-like aluminum oxide polishing material in Phi 2 mm of a standard are used for completing coarse polishing and fine polishing. Polishing time is optimized. The method is used for surface quality improvement of the non-ferrous metal retainer.

Description

technical field [0001] The invention relates to a method for improving the surface quality of a nonferrous metal cage. Background technique [0002] Finishing is a very important process in the cage processing process. The purpose of finishing is: 1. To release the stress generated by the mechanical processing of the cage and improve the dimensional stability of the parts; 2. To ensure that the surface of the cage is smooth and has no sharp angles. The chamfer and the surface of the end face, outer diameter, and inner diameter are smoothly transitioned; 3. Weaken the turning marks on the surface of the cage, and improve the surface finish and appearance quality of the cage. [0003] At present, non-ferrous metal cages with an outer diameter of D≥Ф150mm, such as XXLT2 bearing cages, have an outer diameter of Ф197.8mm and are made of duralumin. Because of its soft texture and large size, the appearance quality of the cage after polishing using the current process method has t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 李迎丽王旭刚杜杰范继承毕立行周英侽
Owner AVIC HARBIN BEARING
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