Turret punch press

Details Turret punch press Turret punch press

1992-02-21

1993-02-09

Jones, David

Metal deforming

With means to drive tool

With means to selectably control movement of tool

7245303, 83552, B26F 104, B26D 508

Patent

active

051844982

ABSTRACT:
A turret punch press wherein the upper and lower turrets are rotated, and the upper die positioned in the processing position is struck by a piston rod (striker element) of a striker device mounted on the lower end of a ram when the ram is lowered by means of a crank shaft (mechanical vertically moving means). The piston rod can be freely moved vertically by a hydraulic cylinder so that the amount of the stroke of the striker element with respect to the upper die is the sum of the amount of the stroke of the ram and the amount of the stroke of the piston rod in the hydraulic cylinder itself. Accordingly, the upper die and the lower die come into contact and the processing occurs only when the ram and the piston rod are both at bottom dead center.

REFERENCES:
patent: 3143007 (1964-08-01), Thompson
patent: 3685380 (1972-08-01), Daniels
patent: 3783672 (1974-01-01), Morgolenko et al.
patent: 4250785 (1981-02-01), Morishita et al.

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