Press brake and ram movement method for press brake

Details Press brake and ram movement method for press brake Press brake and ram movement method for press brake

2005-11-01

2005-11-01

Jones, David (Department: 3725)

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

C072S389400, C072S389600

Reexamination Certificate

active

06959581

ABSTRACT:
In a press brake relatively moving an upper table (5U) or a lower table (5L) upward and downward by a plurality of hydraulic cylinders (17L and17R) so as to perform a bending work, the respective hydraulic cylinders (17L,17R) are driven by individually controlling a pair of left and right two-way. fluid pumps and hydraulic devices (21L,21R) provided in correspondence to the respective hydraulic cylinders (17L,17R) The two-way fluid pumps and the respective hydraulic devices (21L,21R) are mounted to a base plate (23) mounted to cylinder heads (18L,18R) of the respective hydraulic cylinders (17L,17R), and an oil tank (27) is provided in an upper side of the hydraulic devices (21L,21R).

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patent: 08168897 (1996-07-01), None
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patent: 10180499 (1998-07-01), None

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