111 多軸制御工作機械送り駆動系の制御系設計方法(OS-3 最新工作機械・多軸複合加工)

概要

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Dynamic synchronous accuracy is an important factor in multi-axis machine tools because the velocity of each axis is greatly changed in the machining of complex shapes such as impellers. This paper proposes a controller design method for feed drive systems to improve the multi-axis synchronous accuracy. In the design method, the velocity loop in the control systems is designed by using "the Partial Model Matching Method", and the positional loop is also designed by using the frequency characteristics of the velocity control loops designed. In addition, a feed forward controller which can compensate the servo delay is proposed. The parameters of the proposed controllers can be determined systematically without trial and error. The effectiveness of the proposed method in the multi-axis synchronous motion including rotary axes was evaluated by the simulations of multi-axis machining. As a result, it is clarified that the proposed method can greatly improve the synchronous accuracy.
一般社団法人日本機械学会の論文
2006-11-24