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Multi-bin superfinishing centrifugal polishing and grinding device and method for surface of bearing rolling body

A rolling element and bearing technology, applied in surface polishing machine tools, machine tools suitable for grinding workpiece edges, grinding machines, etc., to achieve the effect of improving surface performance, processing efficiency, and roughness grade

Active Publication Date: 2022-07-08
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Yuan Julong from Zhejiang University of Technology proposed a semi-fixed abrasive polishing disc (ZL201910150346.5) for ultra-precision polishing of cylindrical roller cylindrical surfaces based on traditional double-disc grinding and polishing equipment. This method can simultaneously increase the size of cylindrical rollers Accuracy and roughness level, surface roughness dropped from about 72nm to about 15.54nm, roundness dropped from about 0.96μm to about 0.40μm, this process is currently only suitable for small and medium batch processing, and only suitable for roller cylindrical surface finishing processing

Method used

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  • Multi-bin superfinishing centrifugal polishing and grinding device and method for surface of bearing rolling body
  • Multi-bin superfinishing centrifugal polishing and grinding device and method for surface of bearing rolling body
  • Multi-bin superfinishing centrifugal polishing and grinding device and method for surface of bearing rolling body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A multi-silo ultra-precision centrifugal polishing method for the surface of a bearing rolling body, the method comprises the following steps:

[0068] S1, add 60% (about 108g) of 14 to the single warehouse body 35# Walnut shell and 5.4g DS-100 varnish;

[0069] S2, place the processed bearing rolling body 37 on the single-silo body 35, and embed it into the processing medium 36, cover the single-silo end cover 34, and close the single-silo;

[0070] S3, placing the above-mentioned single warehouse with the processing medium 36 and the bearing rolling body 37 on one of the centrifugal disc skeletons 10;

[0071] S4, repeat the steps S1-S3 until 18 separate bins are placed in a groove of the centrifugal disc frame 10 along the axis of the centrifugal disc frame 10, and are pressed and fixed on the centrifugal disc frame 10 by the mounting frame and the star handle 30 ;

[0072] S5, repeat the steps S1-S4 until the 6 grooves on the centrifugal disc skeleton 10 are fille...

Embodiment 2

[0082] A multi-silo ultra-precision centrifugal polishing method for the surface of a bearing rolling body, the method comprises the following steps:

[0083] S1, add 60% (about 108g) of 14 to the single warehouse body 35 # Walnut shell and 5.4g DS-100 varnish;

[0084] S2, place the processed bearing rolling body 37 on the single-silo body 35, and embed it into the processing medium 36, cover the single-silo end cover 34, and close the single-silo;

[0085] S3, placing the above-mentioned single warehouse with the processing medium 36 and the bearing rolling body 37 on one of the centrifugal disc skeletons 10;

[0086] S4, repeat the steps S1-S3 until 18 separate bins are placed in a groove of the centrifugal disc frame 10 along the axis of the centrifugal disc frame 10, and are pressed and fixed on the centrifugal disc frame 10 by the mounting frame and the star handle 30 ;

[0087] S5, repeat the steps S1-S4 until the 6 grooves on the centrifugal disc skeleton 10 are fil...

Embodiment 3

[0097] A multi-silo ultra-precision centrifugal polishing method for the surface of a bearing rolling body, the method comprises the following steps:

[0098] S1, add 60% (about 108g) of 14 to the single warehouse body 35 # Walnut shell and 5.4g DS-100 varnish;

[0099] S2, place the processed bearing rolling body 37 on the single-silo body 35, and embed it into the processing medium 36, cover the single-silo end cover 34, and close the single-silo;

[0100] S3, placing the above-mentioned single warehouse with the processing medium 36 and the bearing rolling body 37 on one of the centrifugal disc skeletons 10;

[0101] S4, repeat the steps S1-S3 until 18 separate bins are placed in a groove of the centrifugal disc frame 10 along the axis of the centrifugal disc frame 10, and are pressed and fixed on the centrifugal disc frame 10 by the mounting frame and the star handle 30 ;

[0102] S5, repeat the steps S1-S4 until the 6 grooves on the centrifugal disc skeleton 10 are fil...

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Abstract

The invention relates to a multi-bin superfinishing centrifugal polishing and grinding device and method for the surface of a bearing rolling body, and belongs to the technical field of mechanical part surface finishing machining. The machining device comprises a single bin, a centrifugal disc framework, a rotary disc and a supporting shaft, the outer portion of the single bin is of a hexagonal prism structure, and inner cavities of different shapes are designed in the single bin; a bearing rolling body, an oily medium and a dry-type light particle medium are arranged in the single bins, the single bins are evenly distributed in the circumferential direction and linearly installed and fixed to the centrifugal disc framework in the axial direction, a determined offset distance exists between the axes of the single bins and a rotating shaft of the centrifugal disc framework, and the centrifugal disc framework conducts planetary motion with the revolution speed of N and the rotation speed of n around the axis of the supporting shaft along with the rotary disc. The dry type light particle medium preloaded into the single bin and the surface of the bearing rolling body generate certain relative motion, all-dimensional synchronous finishing machining of the surface of the bearing rolling body is achieved, the technology is simple, easy to achieve, low in cost and environmentally friendly, and large-scale superfinishing of the surface of the bearing rolling body can be achieved.

Description

technical field [0001] The invention belongs to the technical field of surface finishing of bearing rolling elements, and in particular relates to a multi-silo ultra-precision centrifugal polishing device and method for the surface of bearing rolling elements. Background technique [0002] In precision equipment, bearings are essential core basic components, which play the role of supporting mechanical rotating bodies, reducing motion friction and ensuring rotation accuracy. They are called mechanical "joints". Bearing rolling elements are one of the key components of bearings. First, its surface quality seriously affects the working performance and service life of the bearing. [0003] Nowadays, there are different processing methods for different bearing rolling elements. The precision ball processing technology mainly includes single-disk drive V-groove processing, single-disk drive conical disk processing, double turntable eccentric processing, three-turntable drive proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B31/03B24B31/033B24B31/12
CPCB24B31/03B24B31/033B24B31/12Y02P70/10
Inventor 李秀红王兴富杨英波李文辉杨胜强李永刚李学楠王德龙梁振华翟勋政
Owner TAIYUAN UNIV OF TECH