Evaluation method for radial circle run-out error of optical axis

Abstract

The invention belongs to the field of precision metering and computer application, and particularly relates to a stable, rapid and simple-form evaluation method for a radial circle run-out error of an optical axis. The method comprises the following steps of: 1, acquiring an initial measuring point set of a measured section; 2, acquiring a pre-positioned initial measuring point set; 3, establishing a feature row vector set and a state element set; 4, establishing an analysis matrix and an analysis column vector; 5, carrying out rank analysis; 6, solving an analysis matrix and an analysis column vector; 7, updating the coordinates of the circle center and the state element set of the measuring points of the measured section; 8, updating a measuring point set of a reference section; 9, establishing a feature row vector set and a state element set; 10, adding the serial numbers of the measuring points of the reference section into a key point set; 11, establishing an analysis matrix and an analysis column vector; 12, carrying out rank analysis; 13, solving an analysis matrix and an analysis column vector; 14, updating the measuring point set and the state element set; and 15, carrying out qualification judgment.

Description

technical field [0001] The invention belongs to the field of precision measurement and computer application, and relates to a stable, rapid and simple method for assessing the radial circular runout error of a shaft, which can be used for the radial circular runout error of shaft parts with their own axis as the reference axis and provide guidance for the improvement of its processing technology. Background technique [0002] Shaft parts are typical parts that are more common in mechanical hardware accessories. The dimensional error and shape error (abbreviation of shape error and position error) generated during the processing process directly affect product quality, assembly and service life. Quickly and accurately It is of great significance to calculate the part error. [0003] Radial circular runout is one of the important indicators of the geometric tolerance of shaft parts. National standards GBT 1182-2008 and GBT1958 -2004 and ISO 1101:2012 (E) standards give the de...

AI Technical Summary

Problems solved by technology

However, this method is very sensitive to the initial value and is not always stable for the geometry evaluation task

[0009] To sum up, when the current geometric evaluation method is applied to the evaluation of the radial circular runout error of the shaft, it cannot be stable, fast and simple in form at the same time.

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