Draw press with a fixed draw punch and a floating draw punch

Details Draw press with a fixed draw punch and a floating draw punch Draw press with a fixed draw punch and a floating draw punch

2008-03-04

2008-03-04

Banks, Derris H. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S351000, C072S453130

Reexamination Certificate

active

11460361

ABSTRACT:
A machine is disclosed for producing a deep drawn part and a shallow drawn part from sheet metal blanks in a single action draw press. A floating draw punch and a fixed draw punch are provided. The first draw die forms a part that is drawn over the fixed draw punch while the second blank does not begin forming the second part until the floating draw punch bottoms out on the bed of the press. The floating draw punch moves with the binder ring until the additional draw depth required to form the deep drawn part is essentially equal to the draw depth of a shallow drawn part. A process for producing multiple unattached sheet metal parts in a single action draw press is also disclosed wherein a first sheet metal part has a draw depth D1and a second sheet metal part has a draw depth D2.

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patent: 59047028 (1984-03-01), None
patent: 07227623 (1995-08-01), None

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