Patent ID: 8950507
Filing Date: 2015-02-10
Classification: B23Q,B24B

Abstract:
1. In a machine having a rotating spindle ( 1 ) adapted to receive a machining tool, the spindle is mounted in at least one front bearing ( 8 ) and one rear bearing ( 9 ) for rotation about a spindle axis, a device for reducing vibrations ( 19 ) of the spindle ( 1 ) comprises vibration measuring devices ( 2 , 3 , 4 , 5 ) for sensing the vibrations ( 19 ) and vibration reducing correction device ( 6 ) for reducing the vibrations ( 19 ), a control unit ( 7 ) for processing the vibration measuring devices ( 2 , 3 , 4 , 5 ) and for calculating correction values for the vibration reducing correction device ( 6 ) for triggering a correcting counter-motion ( 18 ) perpendicularly to the spindle axis wherein the vibration measuring devices and the vibration reducing correction device are disposed about a periphery ( 10 , 11 ) of the spindle and proximate to one of the at least one front bearing and at least one rear bearing in either a contacting or non-contacting manner.