空间凸轮廓面曲率分析的等距曲面方法

提出了空间凸轮廓面曲率分析的新方法———等距曲面法。该方法利用等距曲面间的曲率关系进行凸轮廓面曲率的解析计算。由于理论廓面是直纹面 ,其廓面曲率容易求得。根据理论廓面与实际廓面间的曲率关系 ,就得到了实际廓面上的曲率。利用结构特征变量来实现计算程序对不同凸轮机构的自适应化。与传统的共轭曲面方法相比 ,本方法计算简单 ,易于理解。

Curvature Analysis of Spatial Cam Profile by Offset Surfaces Mehtod

Offset surfaces method is presented to analyze the curvature of cam profile with cylindrical roller follower.Its principle is based on that there are some relationships between curvatures of the theoretical profile surface and the real profile surface.Curvatures of theoretical profile surface,which is a ruled surface,are easy to get.Then the curvature of real profile surface can by obtained according to the relationships.The CVSs are used to enable the program to adapt to different cam mechanisms.Compared with conjugate surfaces method,this method has the featrues of conceptual clarity and simplicity of computation.