Spindle device with state monitoring, and monitoring method...

Details Spindle device with state monitoring, and monitoring method... Spindle device with state monitoring, and monitoring method...

2007-06-05

2007-06-05

Picard, Leo (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C702S034000, C702S184000, C340S679000, C340S680000

Reexamination Certificate

active

10968829

ABSTRACT:
A spindle device for driving a production machine includes a first sensor for detecting a first physical variable of the spindle device, and at least a second sensor for detecting a second physical variable of the spindle device. In this way, it becomes possible to determine the oscillation amplitude of the rotor of a spindle and a temperature profile of a rolling bearing. Monitoring maximum values allows identification of a crash event, whereas the temperature profile allows conclusions as to a need for maintenance. Signal evaluation can take place centrally at the spindle manufacturer's end, thereby allowing needed maintenance works to be planned long term and effectively.

REFERENCES:
patent: 5900553 (1999-05-01), Hasegawa
patent: 6269284 (2001-07-01), Lau et al.
patent: 7011613 (2006-03-01), Moller et al.
patent: 2002/0029115 (2002-03-01), Moriuchi
patent: 2002/0194304 (2002-12-01), Cramer et al.
patent: 2003/0030565 (2003-02-01), Sakatani et al.
patent: 2003/0103827 (2003-06-01), Moller et al.
patent: 100 07 126 (2001-09-01), None
patent: 101 44 459 (2003-04-01), None

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