No abstract

As a core component of precision CNC machine tool, spindle's thermal characteristics affect the machining accuracy of the machine tool. In order to understand the influence of temperature increase on the deformation of the spindle system, the simulation model of the spindle system is established by determining and calculating heat sources and boundary conditions of the spindle system. The finite element analysis method is used to obtain the distribution of steady state temperature field and the condition of thermal deformation. The results of analysis provide the foundation for improvement and optimization of the vertical machining center.