Study on the dynamic performance of spindle assemble and headstock

To design a machine tool successfully, its essential parts should be analyzed and evaluated after design but before prototype being made. The spindle assembly and headstock are the most essential parts of high speed machine tool, so how the dynamic characteristics of the spindle assembly affect the performance of NC machine tool are of great significance and should be studied. This paper´s research is based on CHH6125 horizontal machining center produced and developed by a certain plant of machine tools. During the course of design, the characteristics of spindle assembly and headstock can be forecasted by using finite element analysis method. During the course of finite element analysis, methods of simulating the spindle assembly support are studied, and the configuration of the spring damper elements of the bearing supports are also studied, and the finite element analysis on the spindle assembly and headstock have been made to confirm its dynamic characteristics.