Patent ID: 6568096
Filing Date: 2003-05-27
Classification: B23Q,G01B,Y10T

Abstract:
A method of measuring shape deviations of a cylindrical workpiece and stabilizing a main longitudinal central axis of rotation of the workpiece in relation to a measuring sensor, the method comprising:a.) performing a measurement of deviation from roundness of a cross-sectional profile of the workpiece using a first measuring sensor arranged on a roundness tester having multi-stepped, self-adapting support elements: b.) measuring radial run-out of the workpiece's cross sectional profile from a center of an average least-squares circle fitted to the workpiece's cross-sectional profile using a second measuring sensor with a measuring tip that is in contact with a horizontal area on the roundness tester; c.) moving the first and second sensors along a longitudinal axis of the workpiece, d.) measuring deviation from roundness and changes in the radius of average circles of a plurality of cross-sectional profiles, using the first sensor; and e.) measuring the run-out from average circle centers, using the second sensor, in order to enable a determination of the longitudinal cross-sectional shape of the workpiece and the deviation from straightness of its main central longitudinal axis to be made therefrom.