文章基本信息

标题：A Method for Generating Helical Surface of the VPA Hob on a CNC Worm Grinding Machine
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作者：Van-The Tran ; Van-The Tran ; Ruei-Hung Hsu 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：95
页码：1-5
DOI：10.1051/matecconf/20179504002
语种：English
出版社：EDP Sciences
摘要：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.