NC METHOD FOR
GENERATION OF CONJUGATING
HYPOID GEARS BASED ON NC'S FLEXIBILITY*
Li Zuozhang Zhou Yunfei Wang Yanzhong Zhouji
National NC System Research Center, Huazhong University of
Science and Technology,
Wuhan 430074, China
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Abstract: It
is known that manufacture of hypoid gears is difficult and
complicated, the reason lies on the limitation of traditional
mechanical machine tools. With the development of NC machine
tools, there should be new ways of cutting this kind of gear.
Therefore, an idea to generate gears with conjugating tooth
surfaces is proposed, based on the “flexibility” characteristic
of NC that means various motions, in a sense, can be performed
arbitrarily on NC machine tools. Using this method, the
direction of the contact path on tooth surfaces can be
controlled, and also, theoretically, the generated tooth
surfaces can transmit motion at specific transmission ratio
curve.
Key words: Hypoid
gear NC Contact path
*
This
project is supported by National Natural Science Foundation of China
(No. 59775087). Received September 1, 2000; received in revised form
October 24, 2001; accepted January 8, 2002
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