Work holders – Holder inserted within work aperture
Patent
1987-12-07
1989-05-09
Watson, Robert C.
Work holders
Holder inserted within work aperture
269 91, 269100, 269137, 269228, 269303, 269900, B23Q 306
Patent
active
048282405
ABSTRACT:
A workpiece is clamped to the table of a machine tool by a toggle clamp or edge clamp supported for rotation by the head portion of a stud threaded into a hole within a member secured to the table. The member may comprise a column or a column extender each having a frame with precisionly attached plates having X-Y grid patterns of alternating threaded holes and precision bores. A grid or base plate with an X-Y pattern of holes and bores may also receive an angle plate which also has an X-Y grid pattern of threaded holes and precision bores in addition to counterbores and precision angle positioning bores which receive pins for precisely locating the angle plate at a selected predetermined angle relative to the grid or base plate. The workpiece may also be secured to T-slot plates which are retained in precision locations on a base plate to define precision T-slots for receiving T-nuts. An adjustable radius locator system provides for precisely locating on the base plate a workpiece having two precision holes.
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patent: 4286778 (1981-09-01), Follmeyer
patent: 4310963 (1982-01-01), Blumle
patent: 4335873 (1982-06-01), Kiefer
patent: 4429862 (1984-02-01), Niedecker
patent: 4489927 (1984-12-01), Yamada et al.
patent: 4549727 (1985-10-01), Kozar
patent: 4585217 (1986-09-01), Erickson
patent: 4630811 (1986-12-01), Rudisill
Longenecker Francis S.
Moeder Kevin J.
Wolff Jeffrey L.
TE-Co.
Watson Robert C.
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