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Date of Publication:2022-10-07

Journal:光学精密工程

Affiliation of Author(s):机械工程学院

Issue:6

Page Number:980-985

ISSN No.:1004-924X

Abstract:A double-disc mode instrument for measuring involute tooth profile is analyzed, which has some advantages, such as simple structure and no Abbe error caused by the stylus. The instrument adopts an intersect coach spring structure as the error transfer lever, which has high sensitivity and no gap. After compensating major measurement error sources, the double-disc mode instrument uncertainty of measurement (U95) is less than ±0.5 μm, which can meet measurement specification of the involute tooth profile of level 1 gear. Comparing with CNC instrument for measuring gear tooth profile, the double-disc instrument automation and multifunction performance are insufficient, but it has advantages in accuracy of measurement and manufacturing economic efficiency, etc. The result shows that the double-disc mode is an ideal method for measuring ultraprecision involute tooth profile.

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