A New Dynamic Calibration Method for Integrated Force-Measuring Tool Holder

The dynamic is very important in cutting detection for integrated force-measuring tool holder. According to the research of dynamic evaluation principle, a new dynamic calibration method which is based on the step response excited by the fracture of marble strips was proposed. The relationship between the real step force and ideal step force was analyzed, which was used to verify the feasibility of the new method. On this basis, the experiment platform and scheme for dynamic calibration were set up. The dynamic calibration experiment for the tool holder was conducted and the natural frequencies in axial and radial directions were measured. The test result indicates the method is feasible and the tool holder satisfies the requirement of force measurement in low-speed cutting.