This paper presents a dynamically compensated Spindle Integrated Force Sensor (SIFS) system to measure cutting forces. Piezo-electric force sensors are integrated into the stationary spindle housing. The structural dynamic model between the cutting forces acting on the tool tip and the measured forces at the spindle housing is identified. The system is first calibrated to compensate the influence of spindle run-out and unbalance at different speeds. Using the cutting force signals measured at the spindle housing, a Kalman Filter is designed to filter the influence of structural modes on the force measurements. The frequency bandwidth of the proposed sensor system is significantly increased with the proposed sensing and the signal processing method.
Dynamic Compensation of Spindle Integrated Force Sensors With Kalman Filter
Contributed by the Dynamic Systems, Measurement, and Control Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the ASME Dynamic Systems and Control Division October 23, 2003. Associate Editor: E. A. Misawa.
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Park, S. S., and Altintas, Y. (December 3, 2004). "Dynamic Compensation of Spindle Integrated Force Sensors With Kalman Filter ." ASME. J. Dyn. Sys., Meas., Control. September 2004; 126(3): 443–452. https://doi.org/10.1115/1.1789531
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