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

An automatic welding machine, gas-electric vertical welding technology, applied in arc welding equipment, high-frequency current welding equipment, welding power sources, etc., can solve the problems of insufficient application and development, no elimination effect, and resource consumption. , to achieve good economic and social significance, eliminate external interference, and ensure the effect of welding effect

Inactive Publication Date: 2011-11-23
SHENYANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 circu...

Method used

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

Examples

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Embodiment Construction

[0010] In the control box of the gas-electric vertical welding automatic welding machine, the current signal for the system , design the following adaptive anti-interference circuit: Here, LM741 is an operational amplifier, AD633 is a multiplier with an output factor of 0.1, and the resistance values ​​are respectively , , , , the value of the capacitance is , the motor can choose Z2 series DC motor.

[0011] First, the current signal in the welding machine control box Use the operational amplifier LM741 to invert and amplify by 10 times, and then use the multiplier AD633 and the operational amplifier twice to make the signal an absolute positive phase signal, and use this absolute positive phase signal and the inverting signal of the original signal In comparison, if the original signal is a positive-phase signal, the motor has current passing through it, and the electric motor makes the switch S1 and point b connected (corresponding to formulas 3.1 and 3.3), and...

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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...

Claims

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Application Information

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IPC IPC(8): B23K9/10B23K11/24B23K13/08
Inventor 金小峥李彦平
Owner SHENYANG UNIV
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