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All-digital integrated circuit for realizing the control logic of gas arc welding machine

A technology of control logic and gas shielding, which is applied in manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of complex program control, low reliability and complex control circuit structure of gas shielded welding machines, and achieves high reliability, high reliability and high reliability. The circuit is simple and the welding seam is beautiful.

Active Publication Date: 2014-10-08
无锡市南方电器制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various types of CO 2 / MAG (metal active-gas welding) / MIG (metalinert-gas welding) or TIG (Tungsten Inert Gas welding) gas shielded welding machine program control is complicated, and a large number of electronic components are used to meet the circuit design requirements, resulting in control circuit structure complex, low reliability

Method used

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  • All-digital integrated circuit for realizing the control logic of gas arc welding machine
  • All-digital integrated circuit for realizing the control logic of gas arc welding machine
  • All-digital integrated circuit for realizing the control logic of gas arc welding machine

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Embodiment Construction

[0017] The present invention will be further described below with reference to the specific drawings and embodiments.

[0018] like figure 1 Shown: the all-digital circuit of the present invention to realize the arc crater control logic of the gas shielded welding machine includes an arc crater connection end, a conventional connection end and a self-locking connection end, one end of the arc crater connection end and one end of the seventh resistor R7 and the eighth One end of the resistor R8 is connected; the other end of the eighth resistor R8 is connected to the power supply VCC, and the other end of the seventh resistor R7 is respectively connected to the input end of the first inverter IC4A, an input end of the seventh NOR gate IC4C, An input end of the ninth NOR gate IC3D is connected with an input end of the NAND gate IC4F;

[0019] The output end of the first inverter IC4A is connected with an input end of the sixth NOR gate IC3C and an input end of the third NOR gat...

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Abstract

The invention relates to an all-digital integrated circuit for realizing arc extinguishing control logic of a gas shielded welding machine. The all-digital integrated circuit is characterized in that a first switch can be selectively connected with an arc extinguishing connection end, a conventional connection end or an self-locking connection end in a corresponding manner; the detection of an switching state of an input signal under the switching operation of a welding gun is realized according to signals generated when the first switch is switched to the corresponding positions of the conventional connection end, the self-locking connection end and the arc extinguishing connection end; and then the purposes of controlling the output signal of the welding machine and converting welding conditions are achieved according to the changing of the pre-set conventional, self-locking and arc extinguishing connection states according to the state of a second switch. An arc extinguishing mode is adopted for welding thick pieces with long welding joints, so that an arc crater formed in the arc extinguishing part is avoided; in the arc extinguishing state, the welding machine is converted to lower welding current or voltage to fill the arc crater, so that the formed welding joint is attractive; as the all-digital integrated circuit design is adopted, the requirement on accomplishing the complicated arc extinguishing logic control with fewest elements is realized; and the all-digital integrated circuit is simple and highly reliable.

Description

technical field [0001] The invention relates to an all-digital integrated circuit, in particular to an all-digital integrated circuit that realizes arc crater control logic of a gas shielded welding machine, and belongs to the technical field of digital electronic control of gas shielded welding machines. Background technique [0002] High-efficiency, energy-saving and environmentally friendly electronically controlled gas shielded welding machines have been widely used in high-efficiency and high-quality welding of various metal materials. All kinds of CO 2 / MAG (metal active-gas welding) / MIG (metalinert-gas welding) or TIG (Tungsten Inert Gas welding) gas shielded welding machine program control is complex, and a large number of electronic components are used to meet the circuit design requirements, which leads to the control circuit structure. Complex and low reliability. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/095B23K9/16
Inventor 李春光李明杰
Owner 无锡市南方电器制造有限公司
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