High precision workpiece positioning table

Details High precision workpiece positioning table High precision workpiece positioning table

1983-03-28

1985-03-19

Watson, Robert C.

Work holders

Holder mounted for movement

With plural means for changing holder positions

269 8, 269 21, 269 74, 269289MR, 308 3A, B23Q 102

Patent

active

045054649

ABSTRACT:
A high-precision positioning table employs magnetic attraction to guide a table along at least one axis. Precision roller bearings between flat guide ways provide the support. A linear DC motor provides force for positioning along an axis without backlash. The linear motor also contributes attractive force aiding in the guidance or retention of the table. A vacuum lock secures the table in a selected position.

REFERENCES:
patent: 3076682 (1963-02-01), Brault
patent: 4234057 (1980-11-01), Nakane et al.
patent: 4234175 (1980-11-01), Sato et al.
patent: 4278348 (1981-07-01), Funk et al.
patent: 4392642 (1983-07-01), Chitayat

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