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发表时间：2022-10-07

发表刊物：光学精密工程

所属单位：机械工程学院

期号：6

页面范围：980-985

ISSN号：1004-924X

摘要：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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