ドリルねじれ溝の断面形状の精密測定(続報) : 誤差補正による測定精度の向上

概要

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A measuring system of drill geometry parameters has been proposed in the previous report. The system is based on laser displacement sensor, slide and rotary tables. Different types of errors may occur while collecting the coordinate data of the drill geometry parameters. This paper describes the calibration of the measuring system for estimating grinding parameters and geometry parameters of the drill point. The calibration procedure, calibration method and error correction method are proposed in this paper. To develop a practical apparatus of the measurement system all setup errors have been considered and measured and as the database they are preserved. Thus, the error can be corrected automatically according to the measuring position. The measured data agrees well with the designed values. It was proved theoretically that the accuracy achieved by this method is enough for the measurement of the drill.
2007-01-05