三次元座標測定機の精度向上法 : 第3報, 測定プローブの姿勢決定法

概要

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To calibrate the three-coordinate measuring machine (3CMM) with several kinds of measuring probes that differ in shape and size, it is necessary to know the attitude of the probe about the coordinate axis as well as the error vector. This paper presents a method of determining the attitude of the probe at several positions in the measuring range. In this method, the three-dimensional standard gages of two types and probes of four types with different offeset are used to observe the attitude, and the discrete distribution of the attitude vector is determined. Based on the proposed method, the experimental measurement to determine the attitude vector was performed. The systematic error at any position in the 3CMM can be calculated from the distribution of the error vector and the attitude vector. To verify the measuring accuracy corrected by the systematic error, distance measurements were performed using the gage blocks, and the measured values were corrected. As a result, it was clarified that the correction improves the accuracy of the 3CMM.
一般社団法人日本機械学会の論文
1990-05-25