Improvement of an Automatic Internal Gear Pitch Tester with a Microcomputer-Aided Interactive Centering Function

Abstract

In order to reduce the measuring time of an automatic internal gear pitch tester which had been developed in the preceding study, improvement of the measuring device and review of the measuring method were carried out. By changing the allowance of positioning accuracy from 1μm to 10μm, the relationship between the adjusting time of the indicator and the allowance of positioning accuracy of the reference indicator were studied. Measuring accuracy is hardly dependent on the allowance of positioning accuracy. This leads to a considerable reduction in the measuring time. It is experimentally proven that this device enables one to measure the pitch error of internal gears with high repeatability and reliability in a short time.