VIBRATION-CHARACTERISTIC SIMULATION OF A NOVEL HYBRID MACHINE TOOL

The hybrid machine tool is a challenging topic in the field of parallel mechanisms. A novel hybrid machine tool with a 2-DOF parallel mechanism and a serial orientation is investigated. Based on some assumptions, the elastic restoring force and elastic vibration model of the mechanism are studied. A numerical simulation is taken for the example of an end-milling cutter in the procedure of milling a plane. The influence of milling parameters on the vibration characteristics is presented. The numerical results show that the rotating speed has an important effect on the chaos vibration property of the machine. However, the depth of cutting has very little influence on the chaos characteristics of the machine.