Compliance apparatus and methods for gripping and transporting w

Details Compliance apparatus and methods for gripping and transporting w Compliance apparatus and methods for gripping and transporting w

1992-06-22

1993-11-16

Larson, Lowell A.

Metal deforming

With means to handle work or product

Including means to permit maneuvering of work or product at...

72422, 72461, 414752, 294 641, 294 65, B21D 504, B21D 4318

Patent

active

052612651

ABSTRACT:
Compliance apparatus, for gripping and transporting workpiece sheets such as appliance door blanks to be formed to and from a work station having precision locator sheet stop surfaces, is mounted on a carrier for travel in a generally horizontal path toward the work station. The compliance apparatus includes a plurality of generally horizontally spaced apart, workpiece-aligned suction grippers for collectively gripping the top surface of a workpiece sheet. Resilient mechanism connecting each of the grippers to the carrier provides for relative individual lateral movement of the sheet carrying grippers from neutral positions to positions displaced therefrom in any required direction, as dictated by the sheet engaging one of the locator sheet stop surfaces and being forced to a correctly aligned position in engagement with the other locator sheet stop surface as the carrier moves in its said path of travel. The resilient mechanism restores each gripper to original neutral position when the workpiece leaves the work station and normally maintains it in neutral position.

REFERENCES:
patent: 2283613 (1942-05-01), Schmidt
patent: 3183032 (1965-05-01), Warfel
patent: 3598263 (1971-08-01), Ehmke
patent: 3955843 (1976-05-01), Ottenhues et al.
patent: 4129328 (1978-12-01), Littell
patent: 4706491 (1987-11-01), Sartorio
patent: 4827757 (1989-05-01), Sartorio
patent: 4989444 (1991-02-01), Murakami et al.
patent: 5042287 (1991-08-01), Sartorio
patent: 5176022 (1993-01-01), Sartorio

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