Structural analysis and optimum design of ECM machine tool based on variable density method

• Main Authors: Lunye SUN, Hao CHEN, Hui WANG, Zhibo FU
• Format: Article
• Language: zho
• Published: Hebei University of Science and Technology 2019-10-01
• Series: Journal of Hebei University of Science and Technology
• Subjects: non-traditional machine tool; electrochemical machining; static analysis; modal analysis; variable density method; structural optimization
• Online Access: http://xuebao.hebust.edu.cn/hbkjdx/ch/reader/create_pdf.aspx?file_no=b201905001&flag=1&journal_
• ISSN: 1008-1542

In order to improve the precision and quality of electrochemical machining of complex surface/cavity parts, the design of horizontal electrochemical machine tool which can realize the compound feeding motion of straight line and rotation is carried out. In this paper, UG software is used to build three-dimensional model of horizontal machine tool, and the simplified model is imported into ANSYS Workbench software for static analysis. The structural stiffness of the machine tool is analyzed based on deformation and stress distribution nephograms. The first six natural frequencies and modes of motion platform are determined by modal analysis, and the optimal design is carried out by using the variable density topology optimization method. Finally, the design is redesigned on the basis of considering the technological characteristics of the structure, and the lightweight design goal of the machine tool is achieved. The developed electrochemical machining machine has sufficient stiffness and stability, which can satisfy the requirements of actual machining. The research results have certain reference value to the design and application of electrochemical machining tool.