Transactions of Materials and Heat Treatment

Title：Structure design and finite element analysis on heavy duty electric CNC screw press

Authors： Xu Shuang1 Zhao Zhiyou2 Zhao Guoyong1 Yang Jingtao2 Zhu Yuangang2 Ding Feng3

Unit： 1.School of Mechanical Engineering Shandong University of Technology 2.Qingdao Hongda Metal Forming Machinery Co. Ltd. 3.Yishui County Inspection Testing Center

KeyWords： trident universal joint metal streamline closed extrusion numerical simulation die wear

ClassificationCode：TG315

year,vol(issue):pagenumber：2022,47(6):193-198

Abstract：

For EP-8000 electric CNC screw press,the main components of press body base, screw and slide block were optimized and designed to increase its impact force from 80 MN to 100 MN, and the stiffness of main components is enough and the impact direction of slide block is not deviated. Therefore, the structures of base and screw were optimized by Solidworks, and the body and screw were modeled by software ANSYS Workbench to analysis their deformation and stress condition. Then, the relation between deformation and vibration frequency was obtained by modal analysis of screw. The results show that after optimization,the maximum deformation amaout of base is 0.363 mm, the maximum equivalent stress of screw is 830.9 MPa, and the deformation rate is 0.0013. The maximum deflection of screw is 0.4403 mm at 83.075 Hz, and bending occurs in the middle position. The original X guide rail positioning of the slider block is transformed into a double-guide rail structure of circular guide and X guide, and the total guiding length is increased to ensure that the slider block is installed in the center of equipment. After optimization, the aspect ratio H/B of anti-eccentric load capacity is increased from 1.38 to 1.92, and the anti-eccentric forging capacity is significantly improved.

Funds：

2022年青岛市科技计划重点研发专项（22-3-2-qljh-10-gx）

徐双（1996-），女，硕士研究生 E-mail：IEGIM2019@163.com 通信作者：赵国勇（1976-），男，博士，教授，博士生导师 E-mail：zgy709@126.com

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