基于啮合分析的圆柱凸轮共轭加工研究

STUDY ON CONJUGATIONAL MACHINING OF CYLINDRICAL CAMS BASED ON ANALYSIS OF GEARING

针对圆柱凸轮的共轭加工方式，利用共轭曲面原理分析了４类圆柱凸轮机构的滚子接触线特性，得出了圆柱凸轮廓面是不可展曲面的结论．在此基础上，认为圆柱凸轮廓面在理论上只有用等径刀具才能精确加工，非等径刀具只能近似加工，并讨论了等径加工的合理方法以及非等径加工的研究方向．通过对凸轮机构的啮合分析来考虑凸轮廓面的加工问题，有助于弄清凸轮加工的机理，改进凸轮产品的加工质量．

The characters of contact lines on the rollers within four kinds of cylindrical cam mechanisms are analyzed first using the theory of conjugating surfaces and the conclusion got then that cylindrical cams′ contours are not torses in this paper. Based on that, it′s believed that cylindrical cams′ contours can not be manufactured precisely without the same size tools as rollers theoretically in patterns of conjugational machining and the reasonable machining method is disscussed.