Turret punch press

Details Turret punch press Turret punch press

1991-12-16

1993-01-12

Briggs, William

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

72332, 72447, B23B 2924, B21D 4300

Patent

active

051778432

ABSTRACT:
A disc support 23 is provided under a lower turret 21 to support the lower turret 21 against the impact thereto. The disc support 23 includes a movable block comprising a through-hole 77 through which scraps are discharged and a press cylinder 79 to push up a lower tool 19 for forming. In a punching operation, the through-hole 77 is arranged in the working area and scraps are discharged from the through hole 77. In a forming operation, the press cylinder 79 is arranged in the working area and pushes up the lower tool 19 to project above a pass line for a workpiece. Since the lower tool 19 is positioned below the pass line, the workpiece W cannot be damaged. Further, the workpiece W is not obstructed by the lower tool 19 when the workpiece W is positioned in the working area and the turrets are rotated, thus forming is properly performed.

REFERENCES:
patent: 3739669 (1973-06-01), Seki
patent: 3752028 (1973-08-01), Walzmann
patent: 3777601 (1973-12-01), Strandell
patent: 4114217 (1978-09-01), Akamatsu
patent: 4212184 (1980-07-01), Falch
patent: 4914938 (1990-04-01), Ishinaga
patent: 4918956 (1990-04-01), Schoch

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