摘要:
There is provided an R-θ table apparatus which freely moves one table on a plane in the forward-and-rearward and leftward-and-rightward directions and in the rotational direction. The apparatus includes: a table which is provided with a through hole having a bearing; a guide member which holds the table to be horizontally freely movable; a driving apparatus which is provided with an action axis inserted being inclined to the bearing, and drives the action axis to be freely rotated and stopped; an elevating base which elevates the driving apparatus; an elevating apparatus which elevates the elevating base, and changes a position of an action point at which the action axis and the bearing are engaged with each other; and a base which is provided with a post that guides the elevating base and the guide member, and mounts the elevating apparatus, in which a horizontal distance between a center line of a main axis of the driving apparatus and the action point is changed by elevating the elevating base, and the table is moved to an arbitrary position without rotating along the guide member.