Measuring and testing – Instrument proving or calibrating – Angle – direction – or inclination
Reexamination Certificate
2005-08-09
2005-08-09
Raevis, Robert (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Angle, direction, or inclination
Reexamination Certificate
active
06925850
ABSTRACT:
A present invention is for a device and method for measuring and calibrating the rotary motion of a rotatable machine member, such as a pivotable swivel member (2b) of a spindle (2) of a five-axis machine tool (1). The device includes an arm (110) mounted to the spindle, a housing (120) mounted to the arm, an optical encoder mounted internal to the arm and positioned therein to measure rotation about an axis extending lengthwise along the housing, which such axis is parallel to the axis about which the swivel member rotates. The device also includes a rotary table (170) mounted to the housing opposite the arm, the rotary table comprising a stator (171) fixedly mounted to the housing and a rotor (172) clampedly affixed to a shaft passing through the housing. The shaft is coupled to an input shaft of the encoder such that rotary movement of the rotor can be measured by the encoder. An electronic level (190) fixedly secured to the rotor, such as by a bracket (180). The encoder, the rotary table and the level are each electronically coupled to a control system which is adapted to obtain readings from the encoder and from the level and to command controlled rotation of the rotor relative to the stator.
REFERENCES:
patent: 5239855 (1993-08-01), Schleifer et al.
Comer Paul
Purtell David
Shivaswamy Satish
Magus GmbH
Raevis Robert
Reising Ethington Barnes Kisselle P.C.
LandOfFree
Method and device for calibrating rotary axis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for calibrating rotary axis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for calibrating rotary axis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3491942