Machine tool with automatic tool change function

Details Machine tool with automatic tool change function Machine tool with automatic tool change function

1981-04-02

1983-11-15

Bilinsky, Z. R.

Metal working

Plural diverse manufacturing apparatus including means for...

Common reciprocating support for spaced tools

414749, B23Q 3157

Patent

active

044147325

ABSTRACT:
In a machine tool with an automatic tool change function, a rotatable tool spindle carries a key engageable with a key-way formed on a tool. A tool change arm, serving as a tool support device, rotatably supports at least one tool to selectively insert and remove the same into and from said tool spindle. When a tool change operation is to be performed, the rotation of the spindle is changed into a predetermined speed suitable for the key-way engagement. An operating device is provided for causing relative movement between the tool change arm and the spindle to insert a tool into the spindle. However, the relative movement thereof is stopped by a stopping device just before the engagement of the key with the key-way. Subsequently, when a first detecting device detects that the key has reached a predetermined angular position, the relative movement of the tool change arm is permitted to thereby make engagement of the key with the key-way. A second detecting device detects the key-engagement and then the tool is clamped in the spindle for a machining operation. After the machining operation, when a third detecting device detects that the key has reached a predetermined angular position, the operating device is operated to move the tool change arm for removing the tool from the spindle.

REFERENCES:
patent: 3191260 (1965-06-01), Jorgensen et al.
patent: 3791022 (1974-02-01), Kurimoto et al.
patent: 3851562 (1974-12-01), Tomita et al.
patent: 3874071 (1975-04-01), Kato
patent: 3994061 (1976-11-01), Tomita et al.

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