| 摘要 |
<p>#CMT# #/CMT# The device has measuring devices e.g. contact-free location sensor (2), acceleration indicator (3), resistance strain gauge (4) and contact sensor (5), for detecting oscillations (19). Correction devices e.g. piezo element (6) and/or electrorheological devices, reduce the oscillations. The correction devices are directly arranged around a periphery (10, 11) of a spindle (1) in a contacting or contactless manner. A control unit (7) processes the measuring devices and calculates a correction value for the correction devices for activating a counter movement (18). #CMT# : #/CMT# An independent claim is also included for a method for reducing oscillations of a tool spindle. #CMT#USE : #/CMT# Device for reducing oscillations of a tool spindle, which is rotatably supported in a front bearing and a rear bearing, in a machine tool i.e. high-frequency milling machine. #CMT#ADVANTAGE : #/CMT# The control unit processes the measuring devices and calculates the correction value for the correction devices for activating the counter movement, thus reducing the oscillations of the rotating spindle in an improved manner, and controlling accuracy of cutting depth, cutting breadth and spindle speed, and hence realizing an optimal accuracy of a tool to be machined. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal sectional view of a spindle. 1 : Spindle 2 : Location sensor 3 : Acceleration indicator 4 : Resistance strain gauge 5 : Contact sensor 6 : Piezo element 7 : Control unit 10, 11 : Periphery of spindle 18 : Counter movement 19 : Oscillations.</p> |
