Research on system design and virtual simulation algorithm of NCG NC gear shaping preventing RCTC

In response to the problems of high cost and low work efficiency faced in the trial cutting of non-circular gear (<strong>NCG</strong>) machining, an in-depth study of the working principle of CNC gear shaping machine based on meshing theory was conducted. A conjugate motion model was established that satisfies the non-sliding rolling motion of the tool pitch circle along the NCG pitch curve, and calculation formulas for workpiece angle, tool angle, and center distance were obtained. A computer simulation algorithm was proposed to simulate the CNC gear shaping process of NCGs; Secondly, a criterion model for preventing root cutting and top cutting (<strong>RCTC</strong>) of NCG was established, and a visual method for determining RCTC of NCG was proposed. A computer-aided design virtual simulation system for NCG CNC shaping program was designed to verify the rationality of NCG pitch curve parameters and shaping tool parameters. Finally, the correctness and effectiveness of the algorithm proposed in this paper were verified through computer virtual simulation.