Punch drive apparatus

Details Punch drive apparatus Punch drive apparatus

1995-09-06

1998-01-20

Jones, David

Metal deforming

With means to drive tool

Including link-actuated tool support

100283, 100289, B21J 918

Patent

active

057091250

ABSTRACT:
A toggle type punch drive apparatus having a strong output obtained by a simple structure so arranged that it drives a freely movable ram (1) used in punch driving. This toggle system (6) incorporates a first lever (11) that is linked to one end of the ram (1) so as to be freely rotatable, and a second lever (12) that is linked to the other end of the first lever (11) between its base end and free end so as to be freely rotatable and which is freely supported at the base end. The free end of that second lever (12) is linked to a nut (8b) of the feed screw apparatus (8) which is driven by a servomotor (7).

REFERENCES:
patent: 4956992 (1990-09-01), Undin
patent: 5289096 (1994-02-01), Takeda

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