一种刮削加工切削齿刃形计算与加工运动仿真方法

Focusing on the skiving of general internal and external profiles, a universal cutting edge calculation method, which involving the enveloping for discrete profiles, is proposed based on the working principle and the generating motion of skiving, and it suits for universal rake flank type. Meanwhile, the calculation method for contact points and corresponding spatial contact motion model are developed. Firstly, the skiving principle is analyzed, and the kinematic model is built in the terms of cutter, workpiece, and configuration parameters. Then, the forward and inverse questions of skiving are analyzed based on the conjugate theory, and the cutting edge curve identification that according to enveloping the intersection curves between rake flank and discrete workpiece surfaces is developed. Moreover, the detail schematic and calculation methods are described, and the judgment for the feasibility of the cutting edge is also given. Additionally, the ascertaining of cutting contact points by cutting edge and the approach on corresponded spatial cutting contact motions simulation are depicted. At last, examples for both external and internal skiving are given to verify the effectiveness of cutting edge identification and skiving motion simulation method.