Three-dimensional positioning device

Details Three-dimensional positioning device Three-dimensional positioning device

B - Operations, Transporting

25

J

B25J 11/00 (2006.01) B25J 9/00 (2006.01) B25J 21/00 (2006.01) H01J 37/20 (2006.01)

Patent

CA 2165877

This invention provides an apparatus or manipulator for positioning objects within a sealed chamber. The inventive positioning apparatus has a stator (or sleeve) sized and shaped for receiving a substantially cylindrical outer rotatable element. The outer element is rotatable with respect to the stator. The outer element has an eccentrically bored longitudinal passage sized and shaped for receiving an inner rotatable element. The inner and outer rotatable elements are independently rotatable with respect to each other. The object to be positioned in the sealed chamber is eccentrically mounted on the internal end face of the inner element such that relative rotation of the inner and outer element translates the mounted object in an X-Y plane perpendicular to the axis of the outer element. Relative rotation of the inner and outer elements allows two-dimensional object positioning. The inner element or outer element or both can be linearly translated along their axes to provide a third dimension of positioning parallel to the axes (Z-direction). Optionally, the object is mounted on a rod within an eccentrically bored passage in the inner element to allow rotation of the object independent of X-Y-Z positioning. The positioning apparatus is adapted for mounting onto a chamber and forming a seal or seals with the chamber to isolate it from the external atmosphere and maintain the internal atmosphere. The inventive positioning device is adaptable to manual, magnetic or motor-driven operation.

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