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Preparation technology of supporting block for grinding outer ring channel electromagnetic coreless gripping device

A preparation process, electromagnetic centerless technology, used in grinding/polishing equipment, machine tools designed for grinding workpiece rotating surfaces, grinding machines, etc., can solve problems such as low working life, ferrule scratches, processing difficulties, etc. Centerless grinding process, improving machining accuracy and good material processing performance

Inactive Publication Date: 2004-12-22
LUOYANG BEARING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the groove grinding of bearing outer ring mainly adopts electromagnetic centerless grinding, and the supporting blocks for electromagnetic centerless grinding fixtures are mostly made of hard alloy, nylon, fluoroplastic and bakelite materials, and the shape is bar or arc shape. Cemented carbide materials are difficult to process because of their high hardness, and are prone to scratches and ribbons on the surface of the ferrule. A centerless grinding process must be added, which increases production costs; nylon, fluoroplastics and cloth Bakelite support blocks with low working life

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0011] Powdered molybdenum disulfide (MOS 2 ): 1%; Nickel (Ni): 5%; Graphite (C): 1%; Mixed material, weigh a certain amount of mixed powder, put it into a forming mold, and shape it on a press. After the compact is refired at 810°C, it is subjected to vacuum oil immersion treatment, and the support block for the electromagnetic centerless fixture for grinding the outer ring channel can be produced.

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Abstract

A supporting block of non-core electromagnetic fixture used for grinding the external slot ring of bearing is made of MoS2, Ni, graphite and bronze through proportionally mixing, die pressing,sintering, die pressing again, sintering again and post-treating.

Description

Technical field: [0001] The invention relates to the technical field of tooling fixtures for machine tools, and relates to a preparation process for a support block for an electromagnetic centerless fixture for grinding outer ring channels. Background technique: [0002] At present, the groove grinding of bearing outer ring mainly adopts electromagnetic centerless grinding, and the supporting blocks for electromagnetic centerless grinding fixtures are mostly made of hard alloy, nylon, fluoroplastic and bakelite materials, and the shape is bar or arc shape. Cemented carbide materials are difficult to process because of their high hardness, and are prone to scratches and ribbons on the surface of the ferrule. A centerless grinding process must be added, which increases production costs; nylon, fluoroplastics and cloth Bakelite support block, its working life is low. Invention content: [0003] In order to solve the problem of scratches and ribbons on the workpiece by the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/307C22C9/00C22C9/02
Inventor 孙永安张永乾易家明徐学兰殷希全
Owner LUOYANG BEARING SCI & TECH CO LTD
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