Machine tool

Details Machine tool Machine tool

1975-11-17

1977-05-31

Hinson, Harrison L.

B23C 100

Patent

active

040261913

ABSTRACT:
A machine tool having a head with a rotatable spindle including an extensible bar for holding a tool and which is axially movable between fully retracted and fully extended positions with several intermediate additional machining positions established by selectively operable stops. Large diameter tools with a flange and mounting taper (as may be provided by a tool adapter which mounts the tool) may be used with complete fit of the mounting taper with a spindle taper, and backup support of the tool at the flange thereof. The machine tool includes a rotatable but axially fixed bar carrier engageable with the tool flange for holding of the flange in fixed position. Axially outward movement of the spindle bar brings the tapers into complete fit while the tool flange is held in fixed position against the bar carrier, and this avoids the need for precision tolerances between the taper gauge line and the back of the flange.

REFERENCES:
patent: 3136217 (1964-06-01), Swanson et al.
patent: 3198079 (1965-08-01), Winnen
patent: 3580135 (1971-05-01), Jones
patent: 3762271 (1973-10-01), Poincenot

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