在一些自动化机械设备和流水作业线中,常常用凸轮加以控制。凸轮上均匀上升或下降的曲线,就是一种阿基米德螺旋线(极座标方程为γ=αθ,即半径γ与转动角度θ之间的函数关系)。以前我们制造凸轮,都是沿用了一种近似划 In some automated machinery and assembly line, it is often used to control the cam. The curve of a uniform ascent or descent of a cam is an Archimedes spiral (the polar coordinate equation is γ = αθ, ie, the function of the radius γ versus the angle of rotation θ). In the past we made a cam, all followed an approximation