| Issue |
E3S Web Conf.
Volume 252, 2021
2021 International Conference on Power Grid System and Green Energy (PGSGE 2021)
|
|
|---|---|---|
| Article Number | 02036 | |
| Number of page(s) | 7 | |
| Section | Research and Development of Electrical Equipment and Energy Nuclear Power Devices | |
| DOI | https://doi.org/10.1051/e3sconf/202125202036 | |
| Published online | 23 April 2021 | |
Optimized Design of Precision EDM Machine Tool based on CAE Simulation and Modal Testing Technology
1 Beijing Institute of Electro-Machining, Beijing 100191, China
2 Inverter Technologies Engineering Research Center of Beijing, North China University of Technology, Beijing, 100144, China
* Corresponding author’s e-mail: liu_18778@163.com
For precision EDM equipment, in addition to the static stiffness of the body of the machine, the dynamic characteristics of the body and the ambient temperature are also the key factors that affect the machining accuracy of the workpieces. In this paper, through the modal simulation analysis of the machine tool that with the sheet metal shell, the weak points of the EDM machine tool are determined. Through thermal stress simulation analysis, the thermal deformation law of the workpieces mounting table is determined, and a solution to reduce thermal deformation is proposed. Through machine tool ODS (operating deflection shapes) test and analysis, the weak links of the machine tool's body in actual processing are determined. Through the above optimization analysis, the foundation has been laid for improving the dynamic and static accuracy of the precision machine tool. The research method in this paper makes up for the deficiency of the machine tool design method based on static stiffness.
© The Authors, published by EDP Sciences, 2021
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