Flexible vacuum gripper

Details Flexible vacuum gripper Flexible vacuum gripper

1986-03-03

1988-10-04

Spar, Robert J.

Material or article handling

Load carried along a horizontal linear path

Having gripper means

414737, 414744B, 901 40, 294 65, B65G 0000

Patent

active

047752904

ABSTRACT:
A vacuum-type pickup and transfer apparatus for irregularly surfaced, shaped and sized objects such as populated printed wiring boards (PWBs) is disclosed. The apparatus includes a plurality of downwardly directed vacuum conduits that have enlarged lips at their lower end. It also includes a thin, flexible, non-porous membrane which extends transversely and loosely between the conduits and through which the conduits extend so that their lower ends communicate with the region below the membrane. The pick-up apparatus is moved down to the PWBs and vacuum applied, so that the flexible membrane seals against the PWBs, adapting and conforming to any irregular surfaces, sizes and shapes. The apparatus includes a control for selectively regulating the movement of the pick-up apparatus and the application of the vacuum. The PWBs are accordingly moved to the desired location and the vacuum released to release the PWBs.

REFERENCES:
patent: 2455650 (1948-12-01), Billner
patent: 2821158 (1958-01-01), Brown et al.
patent: 3165899 (1965-01-01), Shatto, Jr.
patent: 3514065 (1970-05-01), Litt et al.
patent: 3591228 (1971-07-01), Webb
patent: 3648853 (1972-03-01), Winne
patent: 3659678 (1972-05-01), Hall, Jr.
patent: 3668498 (1972-06-01), Austin, Jr.
patent: 4162018 (1979-07-01), Arya
patent: 4221356 (1980-09-01), Fortune

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