Tool replacement method and nut driver for machine tools

Details Tool replacement method and nut driver for machine tools Tool replacement method and nut driver for machine tools

2007-06-12

2007-06-12

Ross, Dana (Department: 3722)

Tool changing

Including machine tool or component

Rotary spindle machine tool

C483S001000, C483S007000

Reexamination Certificate

active

11546290

ABSTRACT:
A spindle (5) has a chuck (9) provided on a distal end (5a) thereof for chucking a tool (11), and a nut (13) screwed to the distal end (5a) and rotatable for tightening and loosening the chucking. The spindle (5) is positioned relative to a nut loosening station provided with a nut loosening driver (43) for driving the nut (13) to rotate in a loosening direction, the nut (13) is loosened by the nut loosening driver (43) to remove from the chuck (9) a first tool (11) to be replaced with a second tool (11), the spindle (5) is positioned relative to a nut tightening station provided with a nut tightening driver (41) for driving the nut (13) to rotate in a tightening direction, and the nut (13) is driven by the nut tightening driver (41) to tight-chuck the second tool (11).

REFERENCES:
patent: 5382213 (1995-01-01), Kopel et al.
patent: 6030326 (2000-02-01), Azuma et al.
patent: 6149562 (2000-11-01), Patel et al.
patent: 4007072 (1991-09-01), None
patent: 69300950 (1996-05-01), None
patent: 19957217 (2001-05-01), None
German Office Action dated May 10, 2005 (3 pages).

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