变频压力机摆动力完全平衡分析及部分平衡优化设计  

Complete balance analysis and partial balance optimization design on swing force for variable frequency press

作　　者：李霞 张清林 江秀花 臧崇运 尤佳琪 于勇涛 沈惠平[1] Li Xia;Zhang Qinglin;Jiang Xiuhua;Zang Chongyun;You Jiaqi;Yu Yongtao;Shen Huiping(Research Center of Advanced Mechanism,Changzhou University,Changzhou 213016,China;Jiangsu Xingduan Intelligent Equipment Technology Co.,Ltd.,Liyang 213300,China)

机构地区：[1]常州大学现代机构学研究中心,江苏常州213016 [2]江苏兴锻智能装备科技有限公司,江苏溧阳213300

出　　处：《锻压技术》2024年第4期178-188,共11页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51975062)。

摘　　要：对一种基于零耦合度平面六杆机构的变频压力机作摆动力平衡设计。首先,分析计算了机构的自由度和耦合度;其次,在位置分析的基础上,依次求得了滑块的位移、速度和加速度曲线;最后,添加由有限位置法求出的配重,实现了机构摆动力的完全平衡,并通过机构平衡后的总质心与总摆动力曲线加以验证;此外,基于实际情况的考虑,进行了机构摆动力部分平衡优化设计,采用遗传算法得到设定范围内的最佳配重值。结果表明:质心曲线在x和y方向上的变化幅度分别减少了52.2437%和8.9392%,总摆动力在x和y方向上的变化幅度分别减少了49.4924%和2.7584%,验证了部分平衡优化的有效性。The balance design of swing force for a variable frequency press based on zero coupling degree plane six-bar mechanism was made.Firstly,the freedom degree and coupling degree of the mechanism were analyzed and calculated.Then,on the basis of position analysis,the displacement,velocity and acceleration curves of slider were obtained in turn.Finally,the counterweight obtained by the finite position method was added to realize the complete balance of swing force for the mechanism,which was verified by the total center of mass and total swing force curves of balanced mechanism.In addition,based on the actual situation,the partial balance optimization design of swing force for the mechanism was carried out,and the optimal counterweight value within the set range was obtained by genetic algorithm.The results show that the variation amplitude of the center of mass curve in x and y directions decreases by 52.2437%and 8.9392%respectively,and the variation amplitude of the total swing force curve in x and y directions decreases by 49.4924%and 2.7584%respectively,verifying the validity of the partial balance optimization.

关 键 词：变频压力机 摆动力平衡 有限位置法 遗传算法 平衡优化 

分 类 号：TH113.25[机械工程—机械设计及理论]