Geometrical instruments – Gauge – With calibration device or gauge for nuclear reactor element
Patent
1992-06-08
1993-11-02
Cuchlinski, Jr., William A.
Geometrical instruments
Gauge
With calibration device or gauge for nuclear reactor element
33545, 33549, 33548, G01B 520, G05B 1918, B23Q 116
Patent
active
052574601
ABSTRACT:
A core 4 is mounted on a machine tool for indexable rotation about an axis 2A, so as to bring respective cassettes 10 into position where they can be operated on by tools held in the machine tool spindle 6. The cassettes 10 may hold workpieces 14,14A for machining. After machining, the workpiece 14A is measured by a probe 20 held in the machine tool spindle 6. A pre-calibrated artifact 26 held on another cassette 10 is then indexed into the same position as previously occupied by the workpiece 14A, and comparative measurements are made of the artifact. The accuracy of these comparative measurements is increased because the artifact 26 resides on the machine tool in the same thermal environment as the workpiece during the machining, and because the measurements are made in the same position within the working volume of the machine tool, so that the same regions of the machine tool's measurement scales are utilized.
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patent: 4991304 (1991-02-01), McMurtry
"Periodische Uberwachung von Koordinatenmessgeraten mittels kalibrieter Prufkorper", H. Schussler, Technisches Messen, vol. 57, No. 3, Mar. 1990, Munchen, pp. 103-113.
Cuchlinski Jr. William A.
Fulton C. W.
Renishaw Metrology Limited
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