Generation method for C scanning plan

Abstract

The invention provides a generation method for a C scanning plan, which belongs to the field of nondestructive testing. The method comprises the following steps: selecting three points in a CATIA model of a component and determining the actual coordinates of the three points on the component; setting a horizontal linear section in the CATIA model of the component, wherein the horizontal linear section is located below the component and has a length greater than the maximum length of the component; determining an axis system of the component in the CATIA model of the component, wherein an X axis is a horizontal line consistent with the length direction of the component, a Z axis direction is the height direction of the component, and a Y axis direction is the retracting direction of a probe; setting a need-to-scan detection surface on the component and the stepping amount and the scanning path of the probe in the CATIA model of the component; generating a C scanning plan directed at the component in the CATIA model of the component and introducing the C scanning plan into C scanning equipment; and allowing the C scanning equipment to detect the component according to the C scanning plan.

Description

technical field [0001] The invention belongs to the field of non-destructive testing and relates to a method for generating a C-scan plan. Background technique [0002] There are many composite material parts or metal structural parts with large curvature in aviation products. When performing ultrasonic testing on these parts, in order to ensure the discoverability of defects, the storability of data and the good coupling effect between the probe and parts, etc., We often use large water jet C-scans to inspect parts. At present, inspectors need to manually make a corresponding scanning plan according to the structural shape of the part (that is, guide the scanning path of the scanning device on the part) before scanning. The main disadvantages of manually making scan plans are: 1. It cannot completely ensure that the scanning water column is perpendicular to the surface of the part, resulting in inaccurate scanning results. During C-scan testing, it is necessary to ensure t...

AI Technical Summary

Problems solved by technology

The main disadvantages of manually making a scan plan are: 1. It cannot completely ensure that the scanning water column is perpendicular to the surface of the part, resulting in inaccurate scanning results. During C-scan testing, it is necessary to ensure that the sound beam is perpendicular to the surface of the part. When making a scan plan manually, due to All operations are judged by human eyes whether the probe is perpendicular to the part, so there are certain errors in the manual scanning plan; The length of the part determines how many feature points should be selected on each typical scanning curve, and then manually adjust these points to determine whether the point is suitable as a feature point. After all the points are completed, it will be generated in the system. It will take a long time to check the outline of the part, and it will take a long time to verify all the feature points, plus the additional scanning time, which will greatly increase the man-hours of scanning the part; 3. The use efficiency of the equipment is greatly reduced, due to The part needs to be clamped on the scanning equipment all the time when planning, which takes up a lot of equipment time

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