以空间啮合原理为基础，说明了弧面分度凸轮廓面的加工方法；用矢量法分析了弧面分度凸轮廓面的原始加工误差及其对弧面分度凸轮机构从动件运动规律的影响，并以改进梯形运动规律的弧面分度凸轮为例，求出了由凸轮原始误差造成该机构从动件的位移误差曲线 Based on the principle of spatial meshing, the processing method of camber indexing cam profile is described. The original machining error of camber indexing cam profile and its influence on the follower movement of camber indexing cam mechanism are analyzed by vector method , And taking the arc indexing cam that improves the trapezoidal movement rule as an example, the displacement error curve of the follower driven by the original cam error is obtained