Online detection and correction machining method for enveloping worm tooth surface

Abstract

The invention discloses an online detection and correction machining method for an enveloping worm tooth surface. Ground finish is carried out on the enveloping worm tooth surface through four-axis linkage in combination with a virtual rotation center principle, online detection is conducted on the enveloping worm tooth surface through three-axis linkage in combination with a spherical measuring head, and machining precision of the enveloping worm tooth surface is obtained through comparison of a practical torus helical line obtained through measurement with a theoretical helical line; whether the machining precision of the enveloping worm tooth surface meets requirements is judged, source tracking processing is carried out on a machining error if the requirements are not reached, grinding program correction and machining tool adjustment is conducted on the machining error value obtained by means of source tracking, and then tooth surface correction ground finish is carried out; the process is repeated until the machining precision of the enveloping worm tooth surface meets the requirements. The method solves the problem of low precision of the enveloping worm tooth surface fundamentally, can be applied to machining tooth surfaces of planar double enveloping worms, toroid enveloping torus worms, involute enveloping torus worms and other enveloping worms, and has principle universality and wide application value.

Description

technical field [0001] The invention relates to an on-line detection and correction processing method for tooth surfaces, in particular to an on-line detection and correction processing method for toroidal worm tooth surfaces. Background technique [0002] Toroidal worm drive (such as plane enveloping toroidal worm drive, conical enveloping toroidal worm drive and involute enveloping toroidal worm drive, etc.) has the advantages of multi-tooth contact, high bearing capacity, good lubrication performance, high efficiency and The advantages of long life and other advantages have been applied in metallurgy, petrochemical, military, textile, coal mining and rail transit industries. However, due to the complex grinding principle and many adjustment parameters of the tooth surface of the annular worm, it is usually necessary to turn the grinding head or turn the worm to grind the tooth surface of the other side after grinding one tooth surface, and the tooth thickness cannot be ac...

AI Technical Summary

Problems solved by technology

However, due to the complex grinding principle of the tooth surface of the toroidal worm and the large number of adjustment parameters, it is usually necessary to turn the grinding head or turn the worm around after grinding one side of the tooth surface to grind the other side of the tooth surface, and the tooth thickness cannot be accurately measured etc., resulting in low tooth surface precision, high scrap rate, and poor interchangeability, which hinders the large-scale promotion and wide application of toroidal worm transmission

[0003] Although the error measurement method of the tooth surface of the toroidal worm in the prior art can effectively detect the error of the tooth surface of the toroidal worm, it can only perform offline detection on the finished toroidal worm. If the detection accuracy does not meet the requirements, it needs to be reinstalled. Grinding is performed after clamping, resulting in secondary clamping error, complicated operation, low precision and low efficiency, etc.

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