MILLING MACHINE HAVING DYNAMOMETER FOR MEASURING CUTTING FORCE

摘要

PURPOSE: A milling machine for measuring cutting force is provided to accurately measure cutting force of a milling machine in real time because dynamic vibration and static pressure of a spindle is directly delivered to a piezoelectric ceramic and a load cell. CONSTITUTION: A milling machine for measuring cutting force(100) comprises a frame, a spindle(20), a bearing unit, a piezoelectric ceramic(60), and load cells(70). The spindle is rotatably coupled to the frame. A cutting tool for cutting workpieces is coupled to the spindle. The bearing unit is comprised of rails(40) and ball bearings(50). The rails are arranged between the frame and the spindle. The ball bearings are installed inside the rails and contact with the spindle. The piezoelectric ceramics contact with the bearing unit and measure vibration delivered through the bearing unit. The load cell contacts with the bearing unit and measures pressure delivered through the bearing unit.