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Automatic system for friction stir welding internal defect on-line detection

A technology of friction stir welding and automation system, which is applied in the processing of detection response signals, measurement devices, and analysis of solids using sonic/ultrasonic/infrasonic waves. The effect of solving inefficiency and improving the efficiency of inspection and repair

Pending Publication Date: 2021-07-23
NANJING CHENGUANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most workpiece manufacturers use manual phased array ultrasonic detection for the defect detection of such workpieces, and rely on manual identification of defects, so there are few researches and applications on automatic online detection systems.

Method used

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  • Automatic system for friction stir welding internal defect on-line detection
  • Automatic system for friction stir welding internal defect on-line detection
  • Automatic system for friction stir welding internal defect on-line detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] combine figure 1 , figure 2 , image 3 , an automatic system for on-line detection of internal defects in friction stir welding, consisting of a workpiece 2, a workpiece centering fixture 3, a rotary table 4, a robot base 5, a multi-axis robot 6, a flexible probe clamping coupling tool 7, and a phased array Ultrasonic probe module 8, workpiece internal support ring tooling 9, electric control cabinet subsystem 10, and phased array instrument 11 are composed.

[0030] The upper connecting rod 13 of the flexible probe clamping coupling tool 7 is connected to the end of the multi-axis robot 6 by bolts; the lower sleeve 15 is connected to the upper connecting rod 13 through an elastic element 14; at the same time, the lower end is installed with a phased array ultrasonic probe through a mounting plate Module 8, rolling encoder 16, and roller 17, wherein, the phased array ultrasonic probe module 8 and the rolling encoder 16 are fixed on the mounting plate in parallel by b...

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PUM

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Abstract

The invention discloses an automatic system for friction stir welding internal defect on-line detection, which comprises a mechanical scanning motion subsystem, a phased array ultrasonic instrument, an electric control subsystem and a control unit, and is characterized in that the mechanical scanning motion subsystem is used for realizing movement of a phased array probe along a welding seam and clamping and coupling of the probe; the phased array ultrasonic instrument is used for acquiring and processing ultrasonic data, and the control unit is used for performing data communication, instruction issuing and defect image processing with the phased array ultrasonic instrument and the electric control subsystem by taking Ethernet as a medium based on an industrial personal computer; and the electric control subsystem receives an instruction of the control unit to drive the mechanical scanning motion subsystem to drive the probe to realize full-automatic scanning detection on the friction stir welding seam of the cylindrical or conical workpiece. The system has the advantages of high automation degree, visual imaging, high detection efficiency and capability of automatically identifying, counting and analyzing defects.

Description

technical field [0001] The invention belongs to the field of detection of internal defects of friction stir welding welds, and in particular relates to an automatic system for on-line detection of internal defects of friction stir welding. Background technique [0002] Friction stir welding (FSW) technology is widely used in the welding of key parts of aerospace equipment. In practical applications, due to the influence of welding process parameter deviation, clamping conditions, material surface conditions, operators and other factors, friction stir welding workpieces may also Defects appear, which in turn affects the performance of the joint. Compared with conventional fusion welding defects, friction stir welding defects have characteristics such as closeness, fineness, and complex orientation, which increases the difficulty of detection. At present, the non-destructive testing technologies for friction stir welding seam defects mainly include X-ray and ultrasonic testing...

Claims

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Application Information

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IPC IPC(8): G01N29/06G01N29/265G01N29/44
CPCG01N29/069G01N29/265G01N29/4454G01N29/449G01N2291/0234G01N2291/267
Inventor 许有昌张振平德佳胡伟叶孟哲单政王毅马凯
Owner NANJING CHENGUANG GRP
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