Turret punch press

Details Turret punch press Turret punch press

1994-02-17

1995-06-20

Briggs, William

Tool changing

Including machine tool or component

Reciprocating tool machine tool

72442, 72446, 83552, 83563, 483 28, B23Q 3155, B21D 2826, B21J 1304

Patent

active

054256925

ABSTRACT:
In order to change punches and dies on upper and lower turrets during punching operation on a workpiece, a turret punch press includes a plurality of rotatable holder frames each supporting the upper and lower turret. Thus, when a first set of upper and lower turrets supported on a first holder frames is located in a working region under a striker for a punching operation, a second set of upper and lower turrets supported on a second holder frame is located in a position outside the working region, whereby a punch and die supported on the second set of the turrets can be changed for another punch and die during punching operation. In the preferable embodiment, the holder frame is removably supported on a main frame of the turret punch press, whereby the holder frame can be changed for another holder frame during punching operation.

REFERENCES:
patent: Re31042 (1982-09-01), Clark et al.
patent: 1926985 (1933-09-01), Podrabsy 83552

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