Abstract
We propose the smart test-tool using strain gauges for evaluating and measuring the distribution of tool chucking force. The configurations of the smart test-tool determined by finite element method and experiments have been carried out to create a prototype. As a result, the following conclusions were obtained: The strain gauges fitting multi points in axial direction make the smart test-tool determine the distribution of tool chucking force. The chucking force distribution can be identified from the continuous strain distribution determined by spline interpolation of measured strains at 5 discrete points. The measured results of the smart test-tool indicate that the nearer the chuck exit the stronger chucking force acts in case of collet chuck.
