Programmable bed for machine tools and the like

Details Programmable bed for machine tools and the like Programmable bed for machine tools and the like

1989-09-15

1990-08-07

Bray, W. Donald

Work holders

With fluid means

Vacuum-type holding means

83451, 834682, 144 2R, 144134R, 144286A, 144356, 269303, 269315, B25B 1100

Patent

active

049461494

ABSTRACT:
A programmable bed is provided for machine tools and the like, such as routers, boring tools, and other powered cutters and shapers. The programmable bed has a platen shaped to support differently sized workpieces thereon, and includes a plurality of retractable stops slidably mounted in the platen. The stops are selectively and individually shifted vertically between extended and retracted positions in response to the identification of a particular workpiece, so as to automatically locate or index the same on the platen at a preselected position relative to the machine tool. A plurality of pop-up suction chucks are also slidably mounted in the platen, and are selectively communicated with a source of vacuum. The suction chucks are reciprocated vertically between a retracted disengaged position, and an extended engaged position abutting an adjacent surface of the workpiece, so as to securely retain the workpiece in its preselected position during the machining operation.

REFERENCES:
patent: 4011779 (1977-03-01), Berg
patent: 4170911 (1979-10-01), Ayers et al.
patent: 4223708 (1980-09-01), Paris, Jr. et al.
patent: 4238718 (1980-12-01), Wepner et al.
patent: 4696210 (1987-09-01), Cain et al.
patent: 4723766 (1988-02-01), Beeding
"System Eliminates Fixtures on CNC Routers," Furniture Design & Manufacturing, p. 42, 11/1988.

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