Transactions of Materials and Heat Treatment

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

Authors： Li Xia1 Zhang Qinglin2 Jiang Xiuhua2 Zang Chongyun2 You Jiaqi2 Yu Yongtao2 Shen Huiping1

Unit： 1.Research Center of Advanced Mechanism Changzhou University 2. Jiangsu Xingduan Intelligent Equipment Technology Co. Ltd.

KeyWords： variable frequency press swing force balance finite position method genetic algorithm balance optimization

ClassificationCode：TH113.2+5

year,vol(issue):pagenumber：2024,49(4):178-188

Abstract：

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.

Funds：

国家自然科学基金资助项目（51975062）

作者简介：李霞(1999-)，女，硕士研究生 E-mail：1275216462@qq.com 通信作者：沈惠平(1965-)，男，博士，教授 E-mail：shp65@126.com

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