Press tool interchanging apparatus

Tool changing – Including machine tool or component – Reciprocating tool machine tool

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Details

72446, 72448, 100229R, 100918, B23Q 3155, B21J 1300, B30B 1506

Patent

active

052776875

ABSTRACT:
Herein disclosed is a press tool interchanging apparatus for a press machine, comprising: a tool plate arranged in a press station and including a plurality of tool clamps hydraulically actuated for clamping a press tool; a bolster plate underlying the tool plate and having a plurality of rollers adapted to appear, when lifted, above the upper surface of the bolster plate for carrying the press tool; a plurality of lifters arranged in the bolster plate and hydraulically actuated for lifting the rollers; and a plurality of pressure fluid conduits arranged in the tool plate for feeding a fluid under pressure to the tool clamps and the lifters. Thus, the tool plate is arranged with the tool clamps and the fluid conduits, and the lifters having the vertically movable rollers are mounted in the bolster plate. The pressure fluid can be pumped by jointing couplers in positions between the tool plate and the bolster plate to quicken the clamping actions thereby to shorten the tool interchanging time and to improve the working efficiency of the press machine.

REFERENCES:
patent: 3841142 (1974-10-01), Aisuta et al.
patent: 3910180 (1975-10-01), Yasuhara et al.
patent: 4152978 (1979-05-01), Abe et al.
patent: 4408521 (1983-10-01), Schelli et al.
patent: 4433670 (1984-02-01), Kiyosawa
patent: 4614108 (1986-09-01), Bolle et al.
patent: 4819554 (1989-04-01), Fleischer et al.
patent: 5129254 (1992-07-01), Keizer et al.

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