Alternating and direct current and voltage signal detection device for double-wire welding

Abstract

The invention discloses an alternating and direct current and voltage signal detection device for double-wire welding. The detection device comprises an integrated sensing unit (1), a signal processing unit (2), a data acquisition unit (3) and a computer unit (4) which are connected in sequence, wherein two current sensors (IS1, IS2), two voltage sensors (5, 6) and a direct current stabilized voltage power supply are integrated in a box (A) of the integrated sensing unit; input ends (Vin1, Vin2) of the integrated sensing unit are connected with output positive and negative electrodes of a first arc welding power supply (P1) and a second arc welding power supply (P2) respectively; and positive output cables (11, 12) of the first arc welding power supply and the second arc welding power supply penetrate through the box of the integrated sensing unit to be correspondingly connected with the first current sensor, the second current sensor, the first voltage sensor and the second voltage sensor. According to the detection device, welding current and voltage output to the two arc welding power supplies during double-wire welding can be acquired, displayed and stored in real time, so that acquired welding current and voltage data is used for monitoring welding quality and running state of the equipment. The detection device has the advantages of stable system working performance, high reliability and suitability for various double-wire welding occasions.

Description

technical field [0001] The invention relates to a welding arc electric signal detection device, in particular to an AC / DC current and voltage signal detection device for twin wire welding. Background technique [0002] As an efficient welding method, twin-wire welding technology has been widely promoted and applied in industrial production. Its process quality monitoring and control and equipment technology have become a hot research topic in the field of modern welding. There is no uniform instrument and standard at home and abroad. The stability of the welding process, the quality of the weld seam and the dynamic characteristics of the welding equipment such as the arc welding power supply are tested and evaluated, mainly by experienced welders. Evaluation after welding. This method has a lot of personal subjective components and is not scientific. [0003] With the development of welding arc physics and welding process testing technology, the use of arc signal collectio...

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Problems solved by technology

[0004] At present, in the research on the detection and control of welding systems, most of the systems realize data acquisition and transmission through field bus, RS-485, RS-232 or PCI interface. The detection and control system based on the above communication mode is mainly aimed at single wire welding system, and under the limitation of data transmission rate and working environment, the application range of the developed system is not wide enough, the software and hardware functions are single, the real-time performance and reliability of the system are not high enough, and it is difficult to be popularized and applied in the field

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