Machine tool with spindle chuck replacing function

Details Machine tool with spindle chuck replacing function Machine tool with spindle chuck replacing function

2009-03-06

2009-12-29

Cadugan, Erica E (Department: 3726)

Tool changing

Including machine tool or component

Rotating work machine tool

C279S901000, C082S129000, C082S124000, C082S142000, C029S03800E

Reexamination Certificate

active

07637856

ABSTRACT:
An object of the present invention is to provide a machine tool with a spindle chuck replacing function which has a simple configuration and enables a reduction in work replacement time. The machine tool with the spindle chuck replacing function includes a spindle3, a spindle motor4, a plurality of spindle chucks5, 5, a spindle chuck replacing mechanism10, a pre-rotation motor7, a rotation speed sensing arrangement, and a replacement spindle motor speed control device. The replacement spindle motor speed control device controls the rotation speed of the spindle motor4according to a speed sensed by the rotation speed sensing arrangement so that when the spindle chuck replacing mechanism10passes the spindle chuck located at a spindle opposite position P1to a chuck coupling portion3aof the spindle3, the rotation speed of the spindle3synchronizes with the rotation speed of the spindle chuck5located at the spindle opposite position P1.

REFERENCES:
patent: 3762035 (1973-10-01), Ledergerber et al.
patent: 3779110 (1973-12-01), Harman et al.
patent: 4019410 (1977-04-01), Staszkiewicz
patent: 4563925 (1986-01-01), Link
patent: 2009/0238654 (2009-09-01), Jaeger et al.
patent: 58-196904 (1983-11-01), None
patent: 2001-232564 (2001-08-01), None
patent: 2001-341001 (2001-12-01), None
Machine Translaton of JP-2001-232564, which '564 was published on Aug. 28, 2001.

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