Machining, Measurement, and Control Laboratory

Measurement of Spindle Stiffness for the Development of Intelligent Spindle
Atsushi Matsubara, Sarhan Ahmed, Motoyuki Sugihara, Soichi Ibaraki

In this research, we measure the spindle stiffness by using a loading device for the development of an intelligent spindle. The spindle displacement and hold displacement are calculated from several displacement signals and tool load is measured with a tool dynamometer. The relationship between displacement and load is shown as stiffness chart. The nonlinearity characteristics of the spindle-holder system is observed in the measurement results.