3240 パラレルメカニズム型加工機の加工経路生成法に関する研究(S39-1 パラレルメカニズムとその応用(1),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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This paper presents a method for predicting the tool path generated by a parallel mechanism for a machine tool. As an NC machine tool generally processes a work by interpolating an ideal shape with linear curves, the deviation between the path of the tool and the ideal shape can be estimated easily. However, the input-output relation of the parallel mechanism is non-linear, and accordingly the output pose of the parallel mechanism can be hardly determined by the direct kinematics. The prediction of the deviation of the parallel mechanism machine tool is therefore extremely difficult, so that the generation of its tool path that ensures given allowance is not easy. Thus the present study proposes a simple method to predict the tool path of a parallel mechanism by approximating its motion with a spiral path. By using the prediction result, the study determines an efficiently optimal CL data to realize the tool path that ensures a required deviation.
社団法人日本機械学会の論文
2008-08-02