摘要
本文讨论了内燃机活塞裙部截面廓线变化的规律，提出了切削活塞裙部曲面的机构。分析了机构的运动规律，解决了避免机构“急回”运动出现的方法。建立了机构产生误差的计算公式。
The present paper dealt with the problem of the explosive motor piston skirt Curve,and then, give the mechanism of cutting piston-shirt curve. Further more,explord the mecha-nism kinematics,the error formula,and the method which avoid mechanisn qick-return.
