Robot welding process control and multi-sensor signal synchronous acquisition system and method

Abstract

The invention discloses a system and a method for the control of a robot electric-arc welding process control and the synchronous acquisition of multi-sensing signals. According to the system, the synchronous acquisition of an electric-arc spectrum, a molten pool image, a welding sound and current and voltage signals during the welding process is carried out, so that the synchronous acquisition ofmultisource and multimode signals during the welding process is realized; an industrial personal computer and a control cabinet jointly form a control system; and a communication network among a welding device, a robot device and a signal acquisition storage device is built in the control system, so that the control of the welding process and the control of signal acquisition can be realized. Thesystem and the method for the control of the robot electric-arc welding process control and the synchronous acquisition of multi-sensing signals provided by the invention are applicable to the control of the single robot welding or robot group welding process with multiple types of arc welding manners such as gas tungsten arc welding, gas metal arc welding and cold metal transfer welding and thesynchronous acquisition of the multisource and multimode signals. The system and the method for the control of the robot electric-arc welding process control and the synchronous acquisition of multi-sensing signals provided by the invention provides a technical support for realizing on-line monitoring and control research of the welding quality based on the fusion of the multi-sensing signals, andhas a great significance on improving a robot welding intelligence level and promoting the implementation of intelligent manufacturing of an industrial welding workshop.

Description

technical field [0001] The invention relates to the field of robot welding, in particular to a system and method for robot arc welding welding process control and multi-sensing signal synchronous acquisition. Background technique [0002] Intelligent robot welding is one of the core research fields to realize Industry 4.0 and intelligent manufacturing, and robot arc welding is one of the most widely used welding methods at present. However, since arc welding is a complex physical and chemical process coupled by multiple fields such as heat, electricity, and force, the welding quality will be affected by many random and nonlinear factors and become unstable, resulting in porosity, incomplete penetration, Welding defects such as slag inclusions. These defective weldments can be returned to the factory for repair welding, or lead to the scrapping of the entire weldment, and some undetected welding defects are more likely to cause mechanical equipment failure, resulting in huge...

AI Technical Summary

Problems solved by technology

The existing multi-sensor signal acquisition system used in the welding quality monitoring research based on multi-sensor signal fusion has few sensor types, and it is difficult to ensure the synchronization of various types of signal acquisition. However, whether the signal acquisition types are comprehensive or not and the synchronization between signals It plays a decisive role in the signal fusion monitoring results

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