Rotary table device
The rotary table device includes: a base portion; a bearing provided on the base portion; a table supported by a bearing so as to be rotatable with respect to the base; and a motor that rotates the table in the rotation direction of the bearing with respect to the base portion, in which the table an...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The rotary table device includes: a base portion; a bearing provided on the base portion; a table supported by a bearing so as to be rotatable with respect to the base; and a motor that rotates the table in the rotation direction of the bearing with respect to the base portion, in which the table and a table groove portion recessed in the radial direction of the bearing are formed in an annular shape on the outer peripheral surface over the entire circumference, the base portion includes an annular coil base disposed along the table groove portion so as to enter the table groove portion, and the coil base is disposed along the table groove portion. The motor includes a first motor and a second motor, and the first motor includes: a first magnet row which is a row of a plurality of magnets arranged along a rotation direction of the bearing on a wall surface of the table defining the table groove portion; the second motor includes: a second magnet row including a plurality of magnets arranged along a rotation d |
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