A method of improving the overall pose accuracy of components by optimizing and constructing measurement points

Abstract

The invention discloses a method for improving the overall pose accuracy of components by optimizing and constructing measurement points. According to the coordinates of the measurement points on the components before the posture adjustment and positioning and the coordinates after the posture adjustment and positioning, firstly by constructing effective criteria, Eliminate the points that do not meet the criteria to form valid measurement points, and then, by constructing a transformation matrix, match the components at the initial position and their valid measurement points to the target position, and obtain the construction points of the valid measurement points on the components at the target position and its coordinates. By constructing the optimal criterion, the optimal effective measurement points are obtained from the construction points, and the correction transformation matrix is ​​constructed again for the optimal effective measurement points, and the components at the initial position and the optimal effective measurement points at the initial position are corrected and matched to the target position through the correction transformation matrix, Obtain the corrected construction point and its coordinates of the preferred valid measurement point on the component at the target location.

Description

technical field [0001] The present application relates to the field of aircraft digital measurement, in particular to the digital measurement and data processing technology in the attitude adjustment and positioning process of aircraft components. Background technique [0002] The attitude adjustment of the components refers to the rotation of the components around the three axes of the coordinate system XYZ; the positioning of the components refers to the movement of the components around the three axes of the coordinate system XYZ. Through attitude adjustment and positioning, the position and attitude of aircraft components can be uniquely determined, and high-precision assembly of aircraft components can be achieved. [0003] The aircraft is assembled from a large number of components through attitude adjustment and positioning. Some components only need to pay attention to the overall accuracy when assembling the attitude adjustment and positioning. For example, the ove...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that components and their measurement points are prone to position deviation during the process of attitude adjustment and positioning, which affects the overall accuracy, an optimization and construction method for measuring points to improve the overall accuracy of component attitude adjustment and positioning was invented. Under the premise of keeping the shape, through the analysis, processing, optimization and construction of the coordinate data of the measurement point on the component, the overall accuracy of the attitude adjustment and positioning of the component is improved

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