Automatic profiling detection system for ultrasonic water spraying penetration of curved generatrix revolving body composite material

Abstract

The invention provides an ultrasonic water spraying penetration automatic profiling detection system for a curved generatrix revolving body composite material. The ultrasonic water spraying penetration automatic profiling detection system comprises an industrial personal computer, a seven-axis motion control device, an ultrasonic flaw detector, a probe, a data acquisition card, a working turntable, a water circulation system and a laser range finder. Firstly, coordinates of points corresponding to a composite material along a certain contour are measured through a laser range finder, then a smooth curve function is fitted through the coordinates of the points, slopes corresponding to different positions are obtained through derivation of the curve function during detection, and the slopes correspond to deflection angles of a probe. Coordinates of the probe at different positions are obtained through the curvilinear function, and the coordinates correspond to the moving distance of the probe. And the industrial personal computer receives the real-time position of the probe and the signal data output by the corresponding ultrasonic flaw detector, so that an ultrasonic C scanning detection image can be obtained, and the ultrasonic water spraying penetration automatic profiling detection of the composite material is realized.

Description

technical field [0001] The invention relates to an automatic profiling detection method for ultrasonic water spray penetration of a composite material with a curved busbar rotary body structure, and belongs to the technical field of nondestructive testing. Background technique [0002] The composite material of the curved generatrix structure is a composite material designed and manufactured according to the streamlined curve, which is commonly used in rocket fairings, weapon warhead parts, etc. The structural composite material of the curved bus bar is made of carbon fiber or glass fiber reinforced plastic fiber reinforced resin-based composite material layer structure, and there are defects such as delamination, looseness, and pores inside. Necessary and significant. [0003] Due to the special molding process of the curved busbar rotary structure composite material, most of its defects are planar and sheet-like, which is especially suitable for non-destructive testing by...

AI Technical Summary

Problems solved by technology

However, due to the complex shape of the structure and the non-uniform slope of the cut surface, it is difficult to ensure that the probe is incident at a vertical or near-vertical angle during the detection. The automatic detection of the plane is low, the detection efficiency is low, and the result is not intuitive

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