Tool changing – Including machine tool or component – Rotary spindle machine tool
Reexamination Certificate
2006-12-05
2006-12-05
Carter, Monica (Department: 3722)
Tool changing
Including machine tool or component
Rotary spindle machine tool
C483S001000, C483S007000
Reexamination Certificate
active
07144355
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
Translation of German Office Action dated May 10, 2005 (3 pages).
Arai Takao
Momochi Takeshi
Takasugi Masahiko
Yoshino Hidemi
Carter Monica
Ross Dana
Toshiba Kikai Kabushiki Kaisha
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