Ovality standard component applied to guide pipe bending deformation quality measurement and measurement method

• Main Authors: ZHAO JIBIN, XIA RENBO, ZENG YUANSONG, ZHANG TIANYU, CHEN YUELING
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses an ovality standard component applied to guide pipe bending deformation quality measurement and a measurement method, the standard component comprises a plurality of grooves formed in the surface of a cylindrical body from top to bottom, the cross sections of the grooving positions are oval, and the ovality of each oval cross section is unequal; and each elliptical cross section and the groove wall in the central axis direction form a plurality of elliptical cylinder standard parts. Firstly, coordinate points are collected on the surface of a cylinder on the outer side of the standard part, and a central axis is obtained through fitting; secondly, coordinate points are collected on the surface of the elliptic cylinder of the standard part and projected to a plane with the central axis as a normal vector, and geometric parameters of the elliptic cylinder are obtained through fitting; and finally, calculating the ovality corresponding to each elliptic cylinder to complete the manufacturi