Research on manufacturing method of planing for spur face-gear with 4-axis CNC planer

Rough machining is a major stage of production in face-gear precision manufacturing, and flexible, universal, and efficient rough machining is conducive to the reduction of manufacturing cost and time. Therefore, in this paper, the planing method for spur face-gear processing with a 4-axis CNC planer is proposed, together with a detailed study on the principle of meshing between the shaper and the face-gear, equations of the shaper tooth surface and the face-gear tooth surface, and the application of the planer tool to copy the shaper. Then, on this basis, equations of profiling curves as well as equations of the swing angle range and the radical feed range of the planer tool are derived. Finally, the method of planing the spur face-gear through multi-group envelopes is proposed with the NC processing code written according to the above principle, and the feasibility of the planing method for the spur face-gear and the correctness of the NC code are proved by the results of the simulation processing test based on the Vericut software.

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