Variable pressure angle (VPA) hob is an important cutting tool for generating the twist-free tooth flanks on a crowned involute helical gear used in the high precision gear boxes. However, an appropriate method for generating the VPA hob surface has not proposed yet. Therefore, this paper presents a worm grinding method for generating the helical surface of VPA hob on a CNC worm grinding machine. A mathematical model of the proposed method is established based on a standard hob by controlling rotational motion of the hob axis in the worm grinding process. A numerical example is implemented to verify the merits of the proposed method.
|期刊||MATEC Web of Conferences|
|出版狀態||已出版 - 9 2月 2017|
|事件||3rd International Conference on Mechatronics and Mechanical Engineering, ICMME 2016 - Shanghai, China|
持續時間: 21 10月 2016 → 23 10月 2016