关键词: 刮削, 离散曲线包络, 加工廓形计算, 切触运动, 加工仿真, 误差计算

Abstract: To realize the analysis of machining process for general profile skiving,a mathematical model for skiving simulation based on discrete curve enveloping was proposed,which could identify the machined profile of skiving and corresponding machining error,and provide the cutting contact simulation of skiving process.The kinematic model of skiving was established,where the parameters on the cutter and workpiece as well as the skiving configuration were provided.On the basis of skiving working principle,the machined profile identification ideology that performed through enveloping a serial of discrete curves was proposed.Meanwhile,the detailed calculate procedure and operations were given.With respect the relationship between machined profile points and corresponding cutting actions,the reasonable coordinate transformations were given to carry out the contact motion simulation of skiving process.Furthermore,the machined error estimation method was also presented.An internal skiving simulation for a cutting edge with irregular shape was taken,in which both the machined profile and machined error were calculated to verified the effectiveness of this method.

Key words: skiving, surface enveloping, machined profile identification, contact motion, machining process simulation, machined error estimation