大規模並列計算処理による多軸制御切削加工における最小工具突き出し長さの計画法 : —ポリゴン形状の相対位置関係を考慮した干渉発生および加工可否の判定—

概要

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This study deals with a new planning method of minimum shank length for multi axis control machining. In conventional method, it is designed to deal 3+2 axis control machining and it assumes that tool posture is fixed in machining process. In this paper, we focus on continuous control machining and propose a new planning method based on parallel processing with general purpose graphics processing unit (GPGPU). In the proposed method, required shank length to avoid collision between polygon as approximated shape of workpiece and tool holder is calculated in each polygons individually. Then, the minimum shank length for each tool posture is estimated by comparison among the required length for each polygons. In this paper, we mention about the algorithm of the proposed method and explain the developed prototype estimation system. The developed system can detect the minimum shank length for each tool posture on continuous multi-axis control machining within a few hundred milliseconds.