Tool changing method and apparatus

Details Tool changing method and apparatus Tool changing method and apparatus

1996-04-02

1997-11-18

Briggs, William R.

Tool changing

Process

36447421, 483 8, B23Q 3157

Patent

active

056882149

ABSTRACT:
Tools are classified into small type tools that can pass through the space between a pair of grippers in its open position and large type tools that cannot pass through the space between the pair of grippers in the open position, when the headstock supporting a spindle holding a tool is moved to a position corresponding to a tool change position. When the next tool to be used is of the small type, the tool is moved through a standby position to the tool change position during a machining operation using the tool on the spindle, the headstock is moved to the position corresponding to the tool change position in response to a tool changing instruction and a predetermined tool changing operation is carried out. When the next tool is of the large type, the next tool is positioned and held at the standby position during a machining operation, the headstock is moved to the position corresponding to the tool change position, the next tool is moved to the tool change position and the tool changing operation is carried out.

REFERENCES:
patent: 3775837 (1973-12-01), Tomita et al.
patent: 4117586 (1978-10-01), Uchida et al.
patent: 4567659 (1986-02-01), Kitamura
patent: 4631981 (1986-12-01), Kato et al.
patent: 4739488 (1988-04-01), Asakura
patent: 5169373 (1992-12-01), Horikawa

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