关键词: 高阶椭圆齿轮, 节曲线, 判别函数, 滚齿, 虚拟滚齿, 联动模型

Abstract: To solve the manufacturing problems of higher-order elliptic gears,the pitch curves of the higher-order elliptic gears and their transmission features were analyzed,and the judgment method for gear hobbing machining was established.Based on the hobbing strategy of four-axle linkage,the four-axle three-linkage hobbing model of spur gears and the four-axle four-linkage hobbing model of helical gears were built by using tools rack.Based on the virtual hobbing technology,four higher-order elliptic spur gears and helical gears with different parameters were processed virtually,which verified the correctness of above gear hobbing linkage model and hobbing machining condition.Three gears with typical parameters were hobbed practically on the platform of numerical control gear hobbing system,and the results were consistent with the conclusions of the virtual machining,which could provide a theory foundation to develop the manufacturing modular of higher-order elliptic gears in CNC System.

Key words: higher-order elliptic gears, pitch curve, distinguish function, gear hobbing, virtual hobbing, linkage model