Rotary table mounting and drive device
AssigneeSchaeffler Technologies AG & Co. KG
InventorsHelmut Bode, Martin Schreiber, Gunter Schmid
Life of this patent
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Abstract
A rotary table mounting and drive device (1), including a rotary table (3) which is rotatably mounted on a frame (2) and for the mounting of which an axial/radial rolling bearing arrangement (4) and an active magnetic bearing arrangement (5) are provided, has an electric direct drive (19) which is preferably a torque motor having a rotor (20) rigidly connected to the rotary table (3) and a stator (21) rigidly connected to the frame (2).
Claims11
Rotary table mounting and drive device, comprising a rotary table supported rotatably on a frame by an axial-radial rolling bearing arrangement and an active magnetic bearing arrangement, and an electric direct drive having a rotor connected rigidly to the rotary table and a stator connected rigidly to the frame;
- a sensor to detect at least one of the parameters of a positioning and a movement state of the rotary table, the sensor is constructed for detecting vibrations of the rotary table;
- and
- a control device linking the sensor with the active magnetic bearing arrangement that controls the generation of forces by the active magnetic bearing arrangement to counteract vibrations of the rotary table.
Dependencies are inferred from the claim text.