锻压技术

重型电动数控螺旋压力机结构设计与有限元分析

英文标题：Structure design and finite element analysis on heavy duty electric CNC screw press

单位：1.山东理工大学机械工程学院 2.青岛宏达锻压机械有限公司 3. 沂水县检验检测中心

分类号：TG315

出版年,卷(期):页码：2022,47(6):193-198

摘要：

对EP-8000电动数控螺旋压力机的机身底座、螺杆及滑块等主要构件进行了优化设计，使其运行打击力由80 MN提升至100 MN，且主要部件的刚度足够、滑块打击方向不偏移。通过Solidworks对底座、螺杆进行结构优化，利用ANSYS Workbench 软件对机身、螺杆进行建模，分析其变形和等效应力情况；对螺杆作模态分析，得到其变形与振动频率的关系。结果表明：优化后，底座的最大变形量为0.363 mm，螺杆的最大等效应力为830.9 MPa，变形率为0.0013；螺杆在83.075 Hz时，挠度变形最大，变形量为0.4403 mm，且在中间位置出现弯曲。将滑块原有的X形导轨定位改造为圆导轨与X形导轨复合式双重导轨结构，总导向长度增加，保证滑块安装在装备中心位置，且优化后的抗偏载能力高宽比H/B由1.38提高至1.92，抗偏心锻造能力显著提高。

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.

基金项目：

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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