Self-adaptation anti-interference control system for electrogas welding automatic welder

Abstract

The invention discloses a self-adaptation anti-interference control system for an electrogas welding automatic welder. The self-adaptation anti-interference control system is characterized in that: in a control box of the electrogas welding automatic welder, according to a current signal x1 of the system, a self-adaptation anti-interference circuit is designed as follows: LM741 is an operational amplifier, AD633 is an multiplying unit with an output factor of 0.1, resistance values are respectively 0.5 kilohm, 1 kilohm, 10 kilohms and 100 kilohms, and the capacitance value is 0.1muF; and a motor adopts a Z2 series direct current motor. The self-adaptation anti-interference control system is easy to realize in the control box of the electrogas welding automatic welder, can be used for automatically adjusting control parameters under the conditions of unknown interference and even signal fluctuation due to faults of certain elements and has a better economic value and social significance; and the welding precision is improved and the welding effect is ensured.

Description

technical field [0001] The invention relates to an adaptive anti-interference control system, in particular to an adaptive anti-interference control system for a gas-electric vertical welding automatic welding machine. Background technique [0002] The gas-electric vertical welding automatic welding machine has an important application in the installation and repair of chemical, petroleum storage tanks, metallurgical blast furnaces and other tank objects. This type of welding machine is composed of a cart and a welding trolley walking mechanical system and control system, a welding automatic control box, a circulating water cooler, a wire feeding device, an air supply system and a lighting device. The welding automatic control box researched and developed by Shenyang University Welding Automation Research Institute is a kind of electronic equipment, which uses electronic components and integrated circuits to control the operation of welding torches. Among its technical indi...

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Problems solved by technology

However, as a calculation process, digital filtering and software programming methods need to consume certain resources, and the noise is only eliminated by analog, and it does not play a real role in physical elimination.

Building circuits and performing interference compensation technology in hardware processing can physically obtain the original signal after interference shielding. This type of technology has not been fully applied and developed in the industrial process

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