| Issue |
MATEC Web Conf.
Volume 95, 2017
2016 the 3rd International Conference on Mechatronics and Mechanical Engineering (ICMME 2016)
|
|
|---|---|---|
| Article Number | 04002 | |
| Number of page(s) | 5 | |
| Section | Mechanical Transmission Device and Design | |
| DOI | https://doi.org/10.1051/matecconf/20179504002 | |
| 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
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