Hobbing-shaving carburizing and quenching gear shaving cutter tooth shape K chart determining method

Abstract

The invention relates to a hobbing-shaving carburizing and quenching gear shaving cutter tooth shape K chart determining method. The method includes preparing process, storing a detecting report before shaving, performing heat treatment, carburizing and quenching, comparing with the detecting report before the heat treatment, finding out differences between corresponding points, calculating a drawn shaving tooth shape process K chart, determining shaving tooth shape K chart abscissas, determining shaving tooth shape K chart ordinates, drawing the K chart, and drawing a shaving cutter tooth grinding chart according to adjusted values of the abscissas of a start point, an end point and inflection points and corresponding ordinate values. According to the hobbing-shaving carburizing and quenching gear shaving cutter tooth shape K chart determining method, abscissas and ordinates, corresponding to shaving cutter tooth shape points, of workpiece tooth shape calculating-required points can be determined rapidly through measurement and calculation according to a tooth shape and direction detecting report, the shaving cutter tooth grinding chart can be drew conveniently, basis is provided for a grinding and shaving cutter, and operating efficiency is improved greatly.

Description

technical field [0001] The invention relates to a method for determining the tooth shape K-shaped diagram of a gear shaving cutter for hobbing, carburizing and quenching gears. Background technique [0002] The traditional barrel shaving carburizing and quenching gear process stipulates that the precision before shaving should be one level higher than that of the finished product, and the precision after heat treatment should be reduced by one level. In fact, this discussion is one-sided (because it does not include heat treatment deformation). The law of heat treatment deformation is: the top of the tooth becomes negative, the helix angle becomes smaller toward the two ends of the tooth, and the pressure angle on the index circle becomes smaller; after shaving, the gear precision is tested, and the testing parameter standard is evaluated according to the requirements of the finished product drawing, while The tooth shape that should be achieved by shaving should be determin...

AI Technical Summary

Problems solved by technology

It turns out that the tooth shape K-shaped diagram that the gear shaving should achieve is not determined on the process card of the gear shaving process according to the hot test data and the precision requirements of the finished product, let alone the concept of intermediate tolerances. Determine the tooth shape of the gear shaving knife before grinding the gear shaving knife The K-shaped diagram is only determined by experience. It is difficult to achieve the gear design accuracy of the finished product after adjusting the K-shaped diagram of the tooth shape of the razor for many times. It has also become an industry problem

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