Device for tool changing in punching machines

Details Device for tool changing in punching machines Device for tool changing in punching machines

1978-06-16

1980-01-08

Bilinsky, Z. R.

Metal working

Plural diverse manufacturing apparatus including means for...

Common reciprocating support for spaced tools

72446, 83563, B23Q 3155

Patent

active

041820223

ABSTRACT:
Apparatus for changing tools in a punching machine comprises concentric upper and lower turret magazines carrying tools disposed with their axes on concentric pitch circles. Guide means for successively moving the tools from the magazines to an operating position comprises fixed and movable guide portions having complementary guide surfaces for the tools. The fixed guide portion is outside the pitch circles of the magazines and the movable guide portion is movable between a first operating position in engagement with the fixed guide portion, a second changing positions in which the axis of its guide surface intersects the pitch circles of said magazines and a third neutral position inside the pitch circles so that the tools can pass between the fixed and movable guide portions when the magazines are indexed. Gripping means on the movable guide portion grips an axially extending guide key on the tool to retain the tool in the movable guide portion when moving from the first operating position to the second tool-changing position and is then released.

REFERENCES:
patent: 3745646 (1973-07-01), Kristiansson
patent: 3765291 (1973-10-01), Stenfeldt
patent: 3816904 (1974-06-01), Herb
patent: 4103414 (1978-08-01), Herb et al.

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