The Dynamical Optimum Designing Of The XK717 Numerical Control Milling Machine

The feeding servo system is a key part of Numerical Control Machine Tool. The dynamic characters of feeding transmission parts not only directly affect working capability and machining precision of a machining tool, but also influence orientation precision of feeding system. In addition, mechanical design of machine transmission parts will also affect servo capability of feeding servo system greatly. Modern numerical control machine tool trends toward to high speed, high efficiency and high precision. The designing requirement for machine tool feeding transmission parts has been more and more high. Because usually the dynamical characters of machine transmission parts are not taken into account in the phase of designing, servo capability is influenced.In this paper, bearing stiffness and feeding servo system model experiments are made, and based the results of experiments the dynamic parameters of bearing and worktable are identified. In the same time, according to the situation of work ship, the paper brings out the way to...