Abstract
Gear shaping is an efficient cutting method available for internal helical non-circular gears, but gear hobbing is not. Four methods and models of generating motion were built. Virtual shaping revealed that the method of equal arc-length of gear billet has the highest machining precision. Three methods of primary motion were built and analyzed respectively by using a kinetic simulation, which revealed that the method of keeping a constant velocity has the best dynamic performance. Two methods of additional motion were offered. Virtual shaping revealed that the two methods have the same precision, whether the gear has a right-hand helix or left-hand helix. Finally, two optimal shaping models were provided, and performed shaping experiments, respectively. The experiments showed that the shaping strategies and models are correct and feasible. Tooth-flank detections revealed that every tooth of the gears has the same precision using the optimal shaping models.
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Liu, Y. Research on gear shaping strategy for internal helical non-circular gears and performance analyses for linkage models. J Mech Sci Technol 28, 2749–2757 (2014). https://doi.org/10.1007/s12206-014-0514-7
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DOI: https://doi.org/10.1007/s12206-014-0514-7