Research on manufacturing method of CNC plunge milling for spur face-gear

As flexible, universal, and efficient rough machining is a fundamental technology for face-gear precision manufacturing, the plunge milling method for spur face-gear processing is studied in this paper. Based on the principles of differential geometry and gear meshing, the mathematical model of the spur face-gear is established. The plunge milling cutter is used to copy the gear shaper and the spur face-gear is processed through multi-group envelops. The swing angle range Δϕt of the copying curve and the radical feed range of the spindle Δlt are calculated through the research on the distribution of the contact line between the gear shaper and the spur face-gear, and the NC machining code of the spur face-gear is obtained based on the principle of NC programming. The feasibility of the plunge milling method for the face-gear and the correctness of the NC processing code presented in this paper are verified through the simulation processing test based on the Vericut software. Overall, an effective approach to the highly efficient plunge milling for the spur face-gear is provided in this paper.