本文是在剪切机四杆机构按给定轨迹与刀刃平行运动合理设计方法的基础上,提出应用优化技术的优化设计方法。优化设计的指标是刀刃轨迹曲线的误差、刀刃平行运动的位置误差和刀刃水平速度的误差,并采用误差容限加权法,建立统一的目标函数,取得较好的结果。 Based on the reasonable design method of parallel movement of four-bar mechanism of cutting machine according to given trajectory, this paper presents the optimal design method of application optimization technology. The indexes of optimization design are the error of blade trajectory curve, the position error of blade parallel movement and the error of blade horizontal velocity, and the error tolerance weighted method is adopted to establish a unified objective function and get better results.