A real-time intelligent detection method and system for universal welding arc initiation

Abstract

The invention discloses a real-time intelligent detection method and system for universal welding arc starting. The method includes: firstly, performing sliding window sampling and sample screening on collected high-frequency current data, and marking the selected samples with arc starting state; Thereby, a data sample set is generated; feature construction is performed on the generated data samples to obtain the feature set of each sample; combined with the constructed feature set, the machine learning classification algorithm is used for model training, and the detection model of the arcing event is obtained; The detection model of the new high-frequency current data performs real-time detection of arcing events. The invention adopts a low-cost current sensor to collect the current data in the welding process in real time, and based on the meticulous research on the real industrial welding arc starting data, a characteristic algorithm based on the arc starting signal mechanism is designed, which can realize more than one hundred kinds of welding machines. It has high universality, accuracy and practicability to accurately describe the arcing state in the complex state.

Description

A real-time intelligent detection method and system for universal welding arc starting technical field The present invention relates to a kind of universal welding arc starting real-time intelligent detection method and system, belonging to the field of intelligent welding technology. area. Background technique [0002] Intelligent welding is one of the most important research topics in the field of intelligent manufacturing. Sensing technology and its information processing It is the key element to realize the intelligence and automation of the welding process. In recent years, with miniaturization, non-contact and large transmission capacity Sensing technologies with characteristics such as these are more applied to the welding process and real-time quality control, but more attention is focused on the welding process. In terms of welding defect detection, there is currently no detection technology for welding arcing events through sensor data. In real industrial...

AI Technical Summary

Problems solved by technology

In terms of welding quality, frequent arcing will cause welding consistency problems, resulting in too many welded joints, and more likely to have hidden defects; on the other hand, the arcing process can reflect the ability of welders, and has important implications for process and personnel performance evaluation. very important

[0004] The current arc detection methods generally rely on welding machines or robot-specific hardware, and the middle and low-end welding machines with a huge stock of low-end welding machines cannot achieve accurate arc detection if they do not have similar hardware.

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