Deep drawing press with blanking and draw pad pressure control

Details Deep drawing press with blanking and draw pad pressure control Deep drawing press with blanking and draw pad pressure control

1978-09-12

1981-02-03

Gilden, Leon

Joints and connections

Flexibly connected rigid members

Elastomer interposed between radially spaced members

403223, F16D 100

Patent

active

042485452

ABSTRACT:
The present invention relates to single actuator blanking and draw pad force control for a drawing press, which includes a unique swivel for the hold down pad comprising a confined elastomeric member which has high axial stiffness, but relatively low rotational or pivoting stiffness about an axis normal to the actuator axis. Further, the pad can be combined with air pressure for holding a sheet of material during the blanking and drawing operations.

REFERENCES:
patent: 216551 (1879-06-01), Bilz
patent: 1660676 (1928-02-01), Josephs
patent: 2108746 (1938-02-01), Erichsen
patent: 2547725 (1951-04-01), Thompson
patent: 2556984 (1941-09-01), Lemen et al.
patent: 2697578 (1954-12-01), Whittam
patent: 2709598 (1955-05-01), Retz
patent: 2778664 (1957-01-01), Herbener
patent: 3042394 (1962-07-01), Bliss
patent: 3908429 (1975-09-01), Gram
patent: 3944376 (1976-03-01), Hata
patent: 4163617 (1979-08-01), Nemoto

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