A Real-time NURBS Surface Interpolator for 5-axis Surface Machining  

一个面向5轴曲面加工的实时NURBS曲面插补器(英文)

作　　者：王永章 陈良骥 

机构地区：[1]School of Mechanical Engineering, Harbin Institute of Technology, Harbin 150001, China

出　　处：《Chinese Journal of Aeronautics》2005年第3期263-272,共10页中国航空学报（英文版）

基　　金：NationalNaturalScienceFoundationofChina(50175020)

摘　　要：A real-time non-uniform rational B-spline （NURBS） surface interpolator is proposed and 5-axis machining method with a flat-end cutter is discussed. With the Taylor expansion and the coordinate transformation, the algorithms of NURBS interpolation, cutter effective machining radius, cutter offsetting and.inverse kinematics are deduced and implemented, respectively. Different from the conventional free-form surface machining, the proposed interpolator can real-time generate the motion commands of computer numerical control （CNC） machines with CC feedrate, rather than that of CL. An example part surface is demonstrated and the results of simulation show that the proposed method can be applied in actual 5-axis surface machining.A real-time non-uniform rational B-spline （NURBS） surface interpolator is proposed and 5-axis machining method with a flat-end cutter is discussed. With the Taylor expansion and the coordinate transformation, the algorithms of NURBS interpolation, cutter effective machining radius, cutter offsetting and.inverse kinematics are deduced and implemented, respectively. Different from the conventional free-form surface machining, the proposed interpolator can real-time generate the motion commands of computer numerical control （CNC） machines with CC feedrate, rather than that of CL. An example part surface is demonstrated and the results of simulation show that the proposed method can be applied in actual 5-axis surface machining.

关 键 词：free-form surface real-time interpolator NURBS 5-axis machining 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]