凸轮在机械运动中可以完成往复运动、摆动等周期性机械动作。特别是成型铣刀和齿轮滚刀铲齿加工,都由阿基米德曲线型面来控制。现将阿基米德螺旋线凸轮一周的升高距离,称为圆周升量,用K来表示。铲齿凸轮从工作进程曲线上,按使用不同又可分两种:一是单K值, Cam in the mechanical movement can be completed reciprocating, swinging and other periodic mechanical action. In particular, forming cutter and gear cutter tooth processing, by Archimedes curved profile to control. The Archimedes spiral cam now a week of rising distance, known as the amount of the circle, with K to represent. Sprocket cam curve from the work process, according to the use of different and can be divided into two kinds: First, a single K value,