Development Of Horizontal Machining Center By DCG

Driven at Center of Gravity (DCG) is a technology which was put forward by MORI SEIKI to lower vibration、improve rigidity in2006. Combining with the technology of topological optimization and FEM, this paper researches the key technology about DCG to solve the problem appearing in processing and assembly process. It has a great significance to improve the performance of machine tool in processing process and to minish the wear and tear of machine tool.Because of great change of machine tool and lacking of reference, the machine tool rarely utilizes DCG to drive machine tool. According to the principle of DCG, this paper does some research and analysis on the theory of DCG how to improve rigidity、lower vibration and minish the wear and tear firstly. And then, a machine tool is built at the base of DCG. This paper makes use of FEM and topological optimization to optimize the result and process of developing. These results can be used to design machine tool as a guide and forecast performance. So this paper can provide a good reference to design machine tool by DCG。ANSYS and Solidworks are development platform in this paper, and utilize this platform to develop HM100, the development and research process as follows:Firstly, According to the actual need of processing and the principle of DCG, this paper comes up with developing an Opposite horizontal machining center of DCG, and then designs DCG structure according to principle of DCG. Secondly, this paper analyses the processing process of the typical part, then determines main parameters of HM100.This paper designs the general structure with Solidworks, includes spindle box、 stand column、body and the base four parts. Thirdly, it makes some calculations in two typical working conditions to do FEM analysis and topological optimization in HM100.According to the results, making a detailed design which refers to Manual of Machine Tool Design, and do checking interference repeatedly of the whole machine to remove interference. Finally, the paper analyzes the final performances of parts and assemblies, and comparing the result with the traditional machine tool.