非接触3-Dディジタイジングシステムを基にした金型生産加工システムの開発(第2報)
工具経路生成法について
1994 年 60 巻 4 号 p. 514-518
詳細
1994 年 60 巻 4 号 p. 514-518
The purpose of this study is to develop a flexible machining system based on non-contact digitizing data of a master model. This paper presents a procedure of generating a cutter path for each surface element, which consititutes the master model. The procedure is as follows: (1) A master model is decomposed into some surface elements. (2) A surface element is fitted to quadric surface, and the quadric equation is transformed to NURBS equation. (3) An offset surface is created by the Inverse Offset Method which is available for any tool shape. (4) To generate a cutter location data (x, y, z), the coordinate x and y are calculated from NURBS equation, and the coordinate z is obtained by the offset surface.
