凸轮在一般机械的自动控制机构中被广泛采用。为了使制造出的机构能在准确的时间内动作,保证工作的顺利进行,就必须加工出高精度的凸轮外形。假如使用光学曲线磨床或靠钳工修磨来制造高精度的凸轮,不但生产周期长而且很不经济,在实际生产中是行不通的。 Cam in the general mechanical automatic control mechanism is widely used. In order to make the mechanism can be produced in an accurate time action, to ensure the smooth progress of work, we must create a high-precision cam profile. If the use of optical curve grinder or fitters to repair to create high-precision cam, not only long production cycle and very uneconomical, in actual production will not work.