METHOD FOR CALCULATING AMOUNT OF CORE DEVIATION OF CIRCULARITY MEASURING MACHINE AND CIRCULARITY MEASURING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a method for calculating an amount of core deviation of a circularity measuring machine capable of precisely obtaining the amount of core deviation of the circularity measuring machine with simple measurement work using no reference work whose diameter is known, and a circularity measuring machine.;SOLUTION: A method for calculating an amount of core deviation of a circularity measuring machine includes: a first shape data acquisition step for acquiring first shape data A when measurement is performed with a probe being made to contact with a right-side surface of a work; a second shape data acquisition step for acquiring second shape data B when measurement is performed with the probe being made to contact with a left-side surface of the work; and an amount of core deviation calculation step for verifying the first shape data A with the second shape data B to calculate the amount σ of core deviation representing a distance of a detection point relative to a measurement bus line based on verification results.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2017,JPO&INPIT