Work holders – With fluid means – Vacuum-type holding means
Patent
1986-10-01
1988-02-09
Schmidt, Frederick R.
Work holders
With fluid means
Vacuum-type holding means
269266, B25B 1100
Patent
active
047237660
ABSTRACT:
An improved chucking system for workpieces in machine tools has a series of vacuum pods selectively activated for supporting the workpiece in an elevated position relative to the machine tool work table to assure a safe degree of clearance for a cutting tool projecting through the workpiece. The support pods form a grid-like array about the work table in a flush-fit relation to the surface of the work table. Pods have pressure-regulated (air and vacuum) configuration that allows selected pods may be raised above the table surface to support the workpiece and retains the latter in position by applying vacuum to its undersurface. A selected subset of pods to be active and raised while the machining of a particular workpiece is being carried out, without offering any interference to the operation of the cutting tool.
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Ekstrom Carlson & Co.
Hartman Judy J.
Schmidt Frederick R.
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