Method for grinding and machining eccentric sleeve on electromagnetic centreless bearing grinder

Abstract

The method for grinding and machining an eccentric sleeve on an electromagnetic centreless bearing grinder is characterized in that the central line of an outer roller path and the central line of an inner roller path of the eccentric sleeve have eccentricity of H and are provided with multiple positioning holes, and comprises the steps of 1, manufacturing an eccentric base plate (1), a cylindrical positioning pin (3) and a flat square positioning pin (4); 2, attaching the end face with the minimum eccentricity of the eccentric base plate to the end face with the maximum eccentricity of the eccentric sleeve (2) and fixing the eccentric sleeve at a small step end of the eccentric base plate by the cylindrical positioning pin, the flat square positioning pin and an inside hexagon screw (5), thus ensuring the complete coincidence of the inner-hole central lines of the eccentric sleeve and the eccentric base plate and eliminating eccentricity; and 3, performing grinding and machining on the inner roller path of the eccentric sleeve by a pre-finished sand wheel through enabling the electromagnetic centreless bearing grinder to drive the eccentric base plate to rotate at a constant speed. The method has the most obvious advantage that the grinding and machining of the eccentric sleeve can be realized without modifying the electromagnetic centreless bearing grinder, and the processing efficiency of batches of the eccentric sleeves is improved.

Description

technical field [0001] The invention belongs to the technical field of bearing processing, and in particular relates to a grinding method for an eccentric sleeve on an electromagnetic centerless bearing grinding machine. Background technique [0002] For bearing eccentric sleeves, there is an eccentricity H between the centerline of the outer raceway surface and the centerline of the inner raceway surface, and the electromagnetic centerless fixture cannot be directly used on the electromagnetic centerless bearing grinding machine to clamp the outer raceway to its inner raceway surface Grinding, although other grinding machines can be used to solve the problem of grinding the inner raceway surface, but there are problems such as low positioning accuracy, inconvenient adjustment, and low mass production efficiency. [0003] There is no related report on the grinding method of eccentric sleeve on the electromagnetic centerless bearing grinding machine. Contents of the inventi...

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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a grinding method for the eccentric sleeve on the electromagnetic centerless bearing grinding machine. The inner raceway surface is ground and processed, which solves the problems of low positioning accuracy, inconvenient adjustment, and low mass production efficiency.

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