Two-dimensional precision table

Details Two-dimensional precision table Two-dimensional precision table

1977-07-25

1978-12-12

Watson, Robert C.

Work holders

Holder mounted for movement

With plural means for changing holder positions

B23Q 102

Patent

active

041292910

ABSTRACT:
A precision table for a machine tool or the like, which table mounts a workpiece and is adapted to be selectively moved or slid in two directions by a low viscosity bearing such as an externally pressurized air bearing. The bearing includes at least one guide of a substantially J-shaped cross-sectional configuration with a jet arrangement being provided within the guide for jetting a pressurized gas through at least one orifice toward at least one internal surface of the guide. The jet arrangement is disposed within the guide which is fixedly arranged on a flat surface of a bed so that the table is supported by an air film in a clearance between the jet arrangement and portions of the guide.

REFERENCES:
patent: 3277696 (1966-10-01), Gertel
patent: 3863995 (1975-02-01), Jones
patent: 4026536 (1977-05-01), Netto

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