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	凸轮驱动的最大优点是什么? 采用凸轮驱动的最大优点是可实现高速化。凸轮机构结构紧凑，可靠性高。随着伺服技术的进步，利用NC技术能得到任意运动曲线，但是，凸轮还是得到了最佳的运动曲线的重要手段。在自动装配机械中，虽然也使用气动装置，但动作终端的撞击较大，而采用速度控制阀，则会延长工作时间。此外，当增加机械工作速度时，则需要调节机械各处的速度控制阀，这是相当的麻烦。而采用凸轮机构运动和停止都非常平稳。即使改变速度也可保持同步。气压容易受温度和湿度的影响。当使用同一气源的其他机械急速动作时，气压则会下降，而凸轮却能始终处于稳定状态。就气缸而言，必须在一个动作结束后才能进行下一个动作。凸轮的位移与时间之间的关系是确定的，在一个动作尚未结束时，便开始了下一个动作，也就是说，动作可以重叠，因此，可以缩短循环时间。除此之外，凸轮还具有其的优点，如故障率低，即使发生故障，也容易发现故障所在之处。凸轮机构与伺服机构中的运动控制功能有何差异？简而言之，其差异在于不变性与可变性。凸轮机构的动作行程，同步和运动特性均为不变的，无论负荷发生多少变动，其运动状态都不会发生变化。与凸轮机构相反，伺服机构可以通过伺服电动机数字控制来实现运动控制，特别是任意以数值形式得到行程是伺服机构的最大优点。这是在需要适应性和灵活性的现代生产系统中必不可少的。什么是凸轮曲线？凸轮曲线不是凸轮轮廓的形状曲线，而是凸轮驱动从动件的运动曲线（motion curve）。一般用横轴表示时间，纵轴表示位移。凸轮材料和热处理提高凸轮耐磨性的基本条件：磨损种类和减磨对策提高耐磨必的热处理方法：凸轮材料和滚子材料凸轮的机械加工和热处理凸轮表面硬化热处理

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