Thin sheet forming die assembly including lower die cylindrical

Details Thin sheet forming die assembly including lower die cylindrical Thin sheet forming die assembly including lower die cylindrical

1997-02-05

1998-05-05

Jones, David

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

With interrelated clamp closer and tool mover

72319, 72387, 724529, B21D 504

Patent

active

057460825

ABSTRACT:
A die assembly includes a forming portion to form a negative angle portion when an upper die is lowered in a straight line to abut a lower die. A cylindrical rotating cam with a groove formed therein in the axial direction is rotatably mounted in the lower die. A negative angle forming portion is formed in the groove edge portion of the rotating cam. A slide cam with a negative angle forming portion is mounted on the upper die in such a manner to be opposed to the rotating cam to enable the removal of the workpiece from the lower die after the forming process is completed. The rotating cam includes a plurality of cylindrical portions of varying diameters whereby an excessively bent negative angle forming portion may be formed by a single rotating cam.

REFERENCES:
patent: 4365500 (1982-12-01), Klukow
patent: 4535619 (1985-08-01), Gargrave
patent: 4558582 (1985-12-01), Meinig
patent: 4875356 (1989-10-01), Boardman et al.
patent: 5347838 (1994-09-01), Matsuoka

Affiliated with

Also associated with

Rating

Thin sheet forming die assembly including lower die cylindrical does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin sheet forming die assembly including lower die cylindrical , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin sheet forming die assembly including lower die cylindrical will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-45176