テーブル旋回形5軸制御マシニングセンタの幾何偏差同定方法の一般化(機械要素,潤滑,設計,生産加工,生産システムなど)

概要

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This paper describes the method of measuring the geometric deviations inherent to five axis machining centers with an inclined A-axis and a rotary table. As the conventional method is not applicable to the machine with the inclined A-axis, four axis movements are newly proposed. However, the inherent deviations are defined same as the machine with a cradle type table, if the inclination angle of the A-axis is an initial value and its angular deviation is also superimposed on it. Simultaneous three axis control movement which has already been proposed applies to the C-axis for rotary table. Relational expressions between geometric deviations and eccentricities of the trajectories of three axis control movement of C, X and Y and of four axis control movement of A, X, Y and Z were derived. The procedure for identifying the deviation by using the relational expressions was shown. The relational expressions clarify that the cradle type is also applicable. In addition, validity and the application limit of the proposed method are clarified.
2009-08-25