METHOD AND DEVICE FOR DETECTING TOOTH MATCHING ANGLE OF GEAR

摘要

A method and device for detecting the most suitable tooth matching angle of a gear by performing all tooth detection and its signal processing in a short time, thereby canceling the cumulative pitch errors of the left and right tooth surfaces, preventing cutting resides left on the left and right tooth surfaces, and reducing the cutting allowances of the left and right tooth surfaces to irreducible minimum values. According to the left tooth surface (28) which is most considered to leave cutting residue and having a maximum cumulative pitch error AL max (when the clockwise direction is a plus direction) and the right tooth surface (29) having a minimum cumulative error AR min (when the clockwise direction is a plus direction), these cumulative pitch errors are canceled. A correction value d? for reducing the cumulative pitch errors after cutting is determined, a reference tooth groove angle ?₀ is corrected with the correction value d?, and thus the tooth matching angle ? of a work gear (14) is determined.