MATEC Web Conf.
Volume 95, 20172016 the 3rd International Conference on Mechatronics and Mechanical Engineering (ICMME 2016)
|Number of page(s)||5|
|Section||Mechanical Transmission Device and Design|
|Published online||09 February 2017|
A Method for Generating Helical Surface of the VPA Hob on a CNC Worm Grinding Machine
1 Department of Mechanical Engineering, National Central University, 300, Jhongda Rd., Jungli City, Taoyuan 320, Taiwan
2 Department of Mechanical Engineering, Hung Yen University of Technology and Education, 5 Rd., Hung Yen City, Vietnam
3 Bachelor’s Program in Precision System Design, Feng Chia University, 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan
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.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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