Device for preventing vibrations in a tool spindle

摘要

A device and a method for preventing vibrations (19) in a rotating spindle (1) mounted in at least one front 8 and one rear bearing (9) in a machine tool, wherein the device comprises measuring units (2, 3, 4, 5) for detecting the vibrations (19) and correction device (6) for preventing the vibrations (19) disposed directly about the periphery (10, 11) of the spindle (1) in a contacting or non-contacting manner and that a control unit (7) for processing the measuring units (2, 3, 4, 5) and for calculating the correction values for the correction device (6) is assigned to this device.

主权项

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.