Joint bearing inner ring processing method

A technology of joint bearings and processing methods, which is applied to bearing components, shafts and bearings, mechanical equipment, etc., and can solve the problems of large dispersion of ball diameters, easy burns on spherical surfaces, and large grinding areas.

Active Publication Date: 2015-01-21
台州科锦轴承有限公司
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  • Abstract
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Problems solved by technology

However, in the grinding of the plunge-type forming grinding wheel, the spherical difference is large, and the grinding area is large, the spherical surface is easy to

Method used

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  • Joint bearing inner ring processing method

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Embodiment Construction

[0016] Embodiments of the method for processing the inner ring of a spherical plain bearing, such as Figure 2-3 As shown, the method includes the following steps: 1) Use an ordinary lathe to machine the inner hole, plane and spherical surface of the spherical plain bearing inner ring blank. The spherical plain bearing inner ring blank is a tube material. In this embodiment, the spherical plain bearing inner ring blank It is GCr15 pipe material. 2) Perform heat treatment on the blank of the inner ring of the plain bearing processed in step 1) to make the hardness reach a set value. In this embodiment, the set value of the hardness of the blank of the inner ring of the spherical plain bearing after heat treatment is HRC60-64. 3) Use a surface grinder to grind the plane of the plain bearing inner ring blank treated in step 2), so that the roughness of the plane reaches the set value. In this embodiment, the plain bearing inner ring blank treated in step 3) The set value of the ...

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Abstract

The invention relates to the technical field of mechanical processing, and especially relates to a joint bearing inner ring processing method. The method comprises the following steps: 1, lathing an inner pore, a plane surface and a spherical surface by using a joint bearing inner ring blank through a common lathe, wherein the joint bearing inner ring blank is a tube; 2, carrying out heat treatment on the joint bearing inner ring blank to make the hardness reaches a preset value; 3, milling the joint bearing inner ring blank plane surface through a surface grinder; 4, carrying out plunge surface grinding on the joint bearing inner ring blank through a formed grinding wheel, and carrying out coarse grinding on the joint bearing blank spherical surface; 5, grinding the joint bearing blank inner pore through an inner pore grinder; and 6, sequentially putting joint bearing inner rings in the V-shaped grooves of the lower mill plate of a grinder in a separate manner by using separators, and carrying out spherical surface grinding through a ball mill to ensure that the surface roughness reaches the preset value. The method reduces the processing cost of the joint bearing inner rings and improves the quality of the joint bearing inner rings.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for an inner ring of a joint bearing. Background technique [0002] At present, the inner ring of the joint bearing (such as figure 1 ) is mostly processed by mechanical processing, and there are two main known methods for processing the inner ring of spherical plain bearings: 1) Grinding the two planes and hard alloy steel balls (hardness HRC60~64) of the bearing product in sequence Drilling, chamfering, grinding inner hole processing. This method saves processing steps, and the spherical difference and smoothness of the spherical surface are both good. However, due to the high hardness of the finished steel ball, the time for reprocessing is greatly prolonged, resulting in low work efficiency, and it is easy to cause surface burns when the two ends are ground, resulting in a decrease in the hardness of the inner ring of the bearing. In addit...

Claims

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Application Information

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IPC IPC(8): F16C33/14B24B1/00
Inventor 占松华徐煜星张平赵银龙丁晓明
Owner 台州科锦轴承有限公司
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