Patent ID: 7622833
Filing Date: 2009-11-24
Classification: G05B

Abstract:
1. A production machine, in particular a machine tool and/or robot, comprising: at least one electric positioning drive comprising a stator and a moveable member moveable relative to the stator in at least one travel direction, wherein the moveable member is contactless supported relative to the stator by a magnetic field in at least one support direction that is different from the at least one travel direction, a sensor device operatively connected with the at least one positioning drive for contactless detection of an actual displacement of the moveable member relative to the stator in the at least one support direction, a control device operatively connected with the at least one positioning device and receiving the actual displacement of the moveable member relative to the stator in the at least one support direction detected by the sensor device, wherein the control device determines from the actual displacement and a desired support position of the moveable member relative to the stator an actuating signal, a positioning magnet system receiving from the control device the actuating signal and contactless correcting the actual displacement of the moveable member relative to the stator in the at least one support direction based on the actuating signal.