Turret punch press machine

Details Turret punch press machine Turret punch press machine

1987-12-24

1990-03-13

Watts, Douglas D.

Cutting

Means to drive or to guide tool

Plural tools selectively engageable with single drive

83571, 83859, 72455, B21D 2826, B21D 2836

Patent

active

049074806

ABSTRACT:
A turret punch press machine comprising a frame consisting of a base frame portion, column portions extending from the base frame portion, and an upper frame portion horizontally extending from the column portions. The upper frame portion is divided into first and second upper frame portions, a hammer and a hammer driving mechanism are attached to the first upper frame portion. An upper turret of paired ones, each having plural die halves at the circumferential rim portion thereof, is attached to the second upper frame portion, whereas another lower turret is attached to the base frame portion. Even when the first upper frame portion is deformed by the repulsive force and the like of the hammer which is being operated, the second upper frame portion is left undeformed so that the upper and lower turrets cannot have an undesired positional relationship.

REFERENCES:
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patent: 4412469 (1983-11-01), Hirata et al.
patent: 4532845 (1985-08-01), Jinnouchi
patent: 4589317 (1986-05-01), Kawano
patent: 4719830 (1988-01-01), Kawada et al.

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