Metal working – Convertible metal working machine
Patent
1985-11-12
1987-03-03
Bilinsky, Z. R.
Metal working
Convertible metal working machine
72324, 72464, 83552, B21D 501, B23P 2300
Patent
active
046464204
ABSTRACT:
A combined bending and cutting machine suitable for bending and cutting metal plate has a female bending die holder extending transversely across a lower part of the frame and supported thereby, the female die holder having a transversely extending upwardly-open recess for receiving a female bending die. A male bending die holder is mounted on the frame above the female die holder for vertical movement relative to the frame and female die holder. The male die holder is moved vertically towards and away from the female die holder to bend a metal plate positioned between the male and female bending dies. A transversely extending clamping member above the female die holder is movable towards and away from said female die holder, the clamping member carrying a plurality of fluid-pressure-operated clamping devices operable to clampingly engage a metal plate mounted on the female die holder when the clamping member has been moved towards the female die holder. A shear is mounted for pivotal movement relative to the frame behind the clamping member and comprises a transversely extending cutting member with a first cutting edge. The female bending die holder has a second transversely extending cutting edge at the rear thereof, and the shear operates by moving the cutting member downwardly to cause the first cutting edge to engage the metal plate behind the clamping devices, when the clamping devices are clampingly engaged with the metal plate, and cooperate with the second cutting edge to cut through the metal plate.
REFERENCES:
patent: 3616525 (1971-11-01), Barthel
patent: 3875655 (1975-04-01), Gerlach
patent: 4506433 (1985-03-01), Gingras
Bilinsky Z. R.
Delbridge Robert F.
Fors Arne I.
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