Machine tool with undisturbed frame


One of the main disturbances of the machine tool frame is caused by operation of motion axis. Movement of high dynamic motion axis is connected with powerful force strokes that excite machine tool frame vibration and deteriorate machining surface quality and productivity. There are several possibilities how to suppress this vibration. One possibility is to use suspended motor, where the motor is connected with the machine body by spring and damper. This paper deals with new more advanced conception where the main motor is connected with the frame by an active element, that is controlled by intelligent control technique. The active element represents another linear motor, therefore the conception is shortly called “motor on motor”.

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