Tool change apparatus for a machine tool

Metal working – Plural diverse manufacturing apparatus including means for... – Common reciprocating support for spaced tools

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Details

414729, B23Q 3157

Patent

active

045818118

ABSTRACT:
In a tool change apparatus for a machine tool, a tool holder receiving means (3) is provided on the machine tool. A tool holder which is provided with a cylindrical portion for engagement of the change arm can be fitted into the tool holder receiving means (3), in the axial direction of the cylindrical portion. A radially extending screwthreaded bore (16) is provided in the cylindrical portion (4a). Provided at the free end of the change arm is a change head (17) which is movable radially with respect to the axis (S) of the cylindrical portion (4a) and which is provided at its outer end that is towards the tool holder (4) with a prism-shaped centering recess (18). Provided in the change head (17) is a connecting pin (19) which extends in the center of the centering recess (18) in the radial direction of movement (V) of the change head (17) and which can be driven by motor means in two opposite directions of rotation and which is limitedly displaceable in its axial direction in the change head (17) and which at its free end is provided with a male screwthread (19c) fitting into the screwthreaded bore (16).

REFERENCES:
patent: 3722711 (1973-03-01), Seidel
patent: 3817541 (1974-06-01), Grabher
patent: 4300278 (1981-11-01), Nomura et al.
patent: 4338709 (1982-07-01), Straub et al.
patent: 4384397 (1983-05-01), Nelson

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