Work holders – Holder mounted for movement – With indexing steps
Patent
1994-12-16
1996-05-14
Kisliuk, Bruce M.
Work holders
Holder mounted for movement
With indexing steps
269 481, 269309, B23Q 125
Patent
active
055160867
ABSTRACT:
A quick-change method for holding a workpiece on a worktable includes the step of providing at least one tombstone module (a workpiece support structure) for holding the workpiece, and a receiver assembly for removably holding the tombstone module on the worktable. The method proceeds by mounting the receiver assembly on the worktable, mounting the workpiece on the tombstone module, and removably mounting the tombstone module on the receiver assembly. In line with the above, an apparatus for holding a workpiece on a worktable (a modular tombstone assembly) includes at least one tombstone module for holding the workpiece, and a receiver assembly for removably holding the tombstone module on the worktable. The receiver assembly includes a base for mounting the receiver assembly on the worktable and an expandable mechanism extending from the base (an expandable mandrel, spindle, axle, pin, bar, shaft, or other elongated member for placement within a bore of the modular tombstone) for holding the tombstone module. The tombstone module includes a block of material with a bore shaped and dimensioned to fit over the expandable mechanism so that expanding the mechanism removably secures the tombstone module to the receiver assembly and thereby to the worktable.
REFERENCES:
patent: 3030903 (1962-04-01), Morris
patent: 3807034 (1974-04-01), Pevzner et al.
patent: 4059036 (1977-11-01), Hartley
patent: 4828240 (1989-05-01), Longenecker et al.
patent: 4872792 (1989-10-01), McCubbin
patent: 5074536 (1991-12-01), McConkey
Ad of Mid-State Machine Product appearing on p. 53 of the Jul. 1994 issue of "Metifax" magazine.
"Flexible Pallet Workholding System" appearing on pp. 70, 72 and 73 of Jun. 1994 issue of Man Modern Application News magazine.
Hanson Loyal M.
Kisliuk Bruce M.
Lynch Thomas W.
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