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Automatic detecting and imaging method of hyper-acoustic phased array of weld joint in complex space

An ultrasonic phased array, automatic detection technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, to achieve the effect of simplified steps, low cost and good flexibility

Active Publication Date: 2014-08-06
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, provide an ultrasonic phased array automatic detection and imaging method for complex space welds, realize efficient automatic detection, and display three-dimensional graphics, making the detection personnel more convenient and intuitive Locating and quantifying weld defects

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  • Automatic detecting and imaging method of hyper-acoustic phased array of weld joint in complex space
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  • Automatic detecting and imaging method of hyper-acoustic phased array of weld joint in complex space

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Embodiment Construction

[0031] An ultrasonic phased array automatic detection and imaging method for complex space welds according to the present invention, the steps are:

[0032] 11) Determine the scanning trajectory according to the three-dimensional CAD model of the complex space;

[0033] 12) Utilize the six-axis manipulator 1 to clamp the ultrasonic phased array transducer 2 to track and scan the weld 5 along the determined scanning trajectory, obtain the test data of the weld 5, obtain the test result of the weld, and display the test result of the weld In 3D weld graphics. Introduce manipulator into weld inspection to realize efficient automatic inspection. The application of computer 3D visualization technology allows the inspection results to be more intuitively displayed in the 3D geometry of the workpiece, which is convenient for inspectors to locate and quantify defects, and inspectors can intuitively observe the defects of welds.

[0034] If the 3D CAD model of the complex space is kn...

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Abstract

The invention relates to an automatic detecting and imaging method of a hyper-acoustic phased array of a weld joint in a complex space. The automatic detecting and imaging method comprises the following steps: 11) determining a scanning trace according to a three-dimensional CAD model of the complex space; 12) clamping a hyper-acoustic phased array transducer with a six-shaft manipulator to track and scan the weld joint along the determined scanning trace, so as to obtain detected data and a detected result of the weld joint, and displaying the detecting result of the weld joint in a three-dimensional weld joint figure. As the manipulator is used in the weld joint detection, high-efficient automatic detection is realized; the detected result is displayed visually into the three-dimensional geometric figure of a workpiece by applying the computer three-dimensional visualization technology, so that detectors can position and quantify defects conveniently.

Description

technical field [0001] The invention relates to the fields of ultrasonic detection and automatic control, in particular to an ultrasonic phased array automatic detection and imaging method for complex space welds. Background technique [0002] At present, the ultrasonic testing methods for curved surface workpieces are mainly the pulse reflection method and pulse penetration method using conventional probes. It is difficult to develop the ultrasonic testing system for curved surface workpieces. The curved surface workpiece detection system requires a multi-axis linkage scanning mechanism, so it requires the organic combination of robotics, automatic control technology, CAD / CAM and other technologies with ultrasonic testing technology. At the same time, in terms of defect signal processing and detection result display, this is developing in the direction of automatic defect quantification, defect type identification and three-dimensional ultrasonic C image display. On the ot...

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Application Information

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IPC IPC(8): G01N29/06
Inventor 路浩方喜风王心红邢立伟
Owner CRRC QINGDAO SIFANG CO LTD
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