飞剪机剪切机械的优化设计

OPTIMUM DESIGN FOR SHEARING MECHANISM IN SHEARING MACHINE

根据飞剪机剪切机构的特点，对该机构合理地附加了两个条件：即当曲柄与ｙ轴重合时，曲柄与连杆ＡＭ在同一条铅垂线上和两个剪切刀刃的运动轨迹曲线的重叠度ξ精确地为某一特定值的条件．这不仅减少了设计变量个数和计算量，而且使该机构的优化设计更加完善．

According to the characteristics of shearing mechanism,the authors add reasonably two conditions,that is,when the crank coincides with y axial, the crank and the link AM is in the same plumb line,and the overlaping value; with which both the motion curves of the two shearing knife edges overlap is a fixed value. This not only cuts off the numble of variats and the computing load,but also perfects optimum design for shearing mechanism in shearing machine further.