Thermal compensation for 5-axis machine tools with physical model

The thermal behaviour of machine tools is influenced by internal and external heat sources and sinks. Significant influences on the machine tool under investigation are heat losses in drives and the spindle, cooling systems and the environmental temperature variation. In this paper a model of an internal cooling system for rotary and swivelling axis unit of a 5-axis machine tool is described. The approach is included in a physical compensation model described in [1]. The paper concludes by showing the improvements in compensation.