一、概述从动件运动规律是影响机构运动精度,引起冲击和振动的重要因素,因此对于运动精度和速度要求较高的机构,选择优良的从动件运动规律是非常重要的。本文以凸轮机构从动件的运动规律为例,对几种常用的运动曲线作简单介绍。(一)运动曲线首先应该明确,运动曲线不是指凸轮轮廓曲线,而是指从动件运动所遵循的规律。一般所说的运动曲线应该包含有位移、 I. Overview The follower movement rule is an important factor that affects the accuracy of machine movement and causes impact and vibration. Therefore, it is very important to choose a good follower movement rule for the mechanism with higher requirements on the accuracy and speed of movement. In this paper, the law of follower motion of cam mechanism is taken as an example, and some commonly used motion curves are briefly introduced. (A) The motion curve First of all, it should be clear that the motion curve does not mean the curve of the cam profile, but rather the law followed by the follower motion. The general said movement curve should contain displacement,