CLAMPING FORCE CONTROLLING METHOD AT ROTATION CLAMPING DEVICES ON MACHINE TOOLS

摘要

The regulator allows the effective clamping to be maintained constant independant of the rotation rate. A measuring element (11) incorporated in the chuck (3) monitors the clamping force exerted on the workpiece (w) by the clamping elements (3a). The measured values are fed to an external regulation device (15). The regulation device is coupled to a servovalve (10) controlling the hydraulic press for the clamping elements (3a), to maintain the measured values within a tolerance range.