| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost taper angle measuring method and taper angle measuring apparatus allowing to measure a large number of objects under measurement in a short time with high precision and easily even by a simple structure. SOLUTION: A master member having a known taper angle of a conical inner periphery as a standard taper angle is fixed, and a measuring head is allowed to move from the measurement position of a first diameter to that of an nth diameter in the axial direction of the conical inner periphery to store the measurement positions and the diameter values from the first diameter to the nth diameter corresponding to the measurement positions as first data. A work member under measurement having a conical inner periphery is fixed, and the measuring head is allowed to move from the measurement position of the first diameter to that of the nth diameter corresponding to the master member in the axial direction of the conical inner periphery to store the measurement positions and the diameter values from the first diameter to the nth diameter corresponding to the measurement positions as second data. The first data and the second data are compared to each other to measure the taper angle. COPYRIGHT: (C)2007,JPO&INPIT
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