Improvement of the Back Taper Processing with Cycloid Rotational Indexing Machining Technique

Abstract

At present, in the cycloid rotational indexing processing back taper technique, machining requirements were achieved mainly through the method of using cycloid cluster to approach the involute, so that the processing efficiency was hindered. To solve this problem, this paper proposes an improved method that reduces the number of cycloids to enhance the processing efficiency. Firstly, the best approximating cycloid of the involute tooth profile is figured out. Then, the involute is segmented into sections, and the best approximating cycloid on each section is calculated. Each cycloid approaches the involute section to a maximum extent until completing the entire involute approximation. Finally, the simulative processing is carried out. The result demonstrates that the number of cycloids is one third of the previous and the machining time saves about 64%. This indicates that the improved method is feasible to machine back taper.