マシニングセンタの温度分布測定による熱変位補正(第2報) : NC 制御装置のピッチ誤差補正機能等を利用した自動補正

概要

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An automatic method has been proposed to compensate the thermal displacement associated with the spindle running of a machining center. At the first, this method determines a mathematical model between the thermal displacements at the cutting point and the temperature changes at the major points on the machine. The mathematical model separates the thermal displacement predicted into the zero point offset and the pitch error component. An NC controller compensates automatically the thermal displacement predicted from the temperature changes on the machine using the functions of the zero point offset and the pitch error compensation. Experiments have been carried out to verify the effectiveness of the method and the results showed that the a good accuracy of a machine is maintained during long hours auto-running.
公益社団法人精密工学会の論文
1991-06-05