Abstract
There are some kinds of mathematical models of feed drive mechanism for machine tools. We modeled a feed drive mechanism by using the most popular model which is for two degrees of freedom, and proposed a simple friction model by considering the balance of the driving force and friction force. As a result of simulation using the model, the simulated circular trajectory was in agreement with the actual trajectory and the quadrant glitch was well expressed. However, the out put torque of the motor cannot be expressed in the simulation. In addition, the frequency response cannot be expressed with the parameters identified by the step response.
