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Control method and apparatus for processing striking and sticking thread of welding

A technology of sticking wire and welding current, applied in welding equipment, manufacturing tools, arc welding equipment, etc., to achieve the effect of eliminating labor, not easy to stick wire, and reducing work intensity

Active Publication Date: 2010-11-17
PANASONIC WELDING SYST TANGSHAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention mainly aims at the solution of this problem

Method used

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  • Control method and apparatus for processing striking and sticking thread of welding
  • Control method and apparatus for processing striking and sticking thread of welding
  • Control method and apparatus for processing striking and sticking thread of welding

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Embodiment Construction

[0031] In the thick wire MIG / MAG welding operation, especially the welding of thick aluminum wire, the adhesion between the welding wire and the base metal is prone to occur, especially when the arc is started, the adhesion between the welding wire and the base metal occurs frequently. When sticking occurs, the magnitude of the welding current or welding voltage changes, that is, the welding current increases and the welding voltage decreases. When the adhesion is broken, the welding current will decrease and the welding voltage will increase again.

[0032] figure 1 A structural block diagram of the welding equipment used in the present invention is schematically shown. The welding control device of the present invention detects the welding output circuit to obtain the welding current A and / or the welding voltage V, and sends the wire feeding motor control signal to the wire feeding motor, including the wire feeding motor start signal and the wire feeding motor stop signal, ...

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Abstract

The invention relates to a method to detect the occurrence of wire sticking and a device thereof. In the entire welding process (from welding of the starting arc to the completion of the welding), a control system performs real-time detection of the occurrence of wire sticking. The detection method is as follows: the control system performs real-time detection of the welding current or the welding voltage; if the system detects that the welding current is higher than the upper limit value A1 or the welding voltage is lower than the lower limit value V1, the control system judges an occurrenceof wire sticking and sends out a signal to stop the wire feeding motor until the front end of the welding wire melts and forms an electric arc; as the detected welding current value is lower than thelower limit A2 or the detected voltage value is higher than the upper limit value V2, the control system judges the state of non-wire welding and sends a signal to start up the wire feeding motor. The values A1, A2, V1 and V2 are all data from the actual experience of welding engineering.

Description

technical field [0001] The invention relates to a control method and device for welding arc striking and wire sticking treatment. Background technique [0002] In the thick welding wire MIG / MAG welding operation, especially the welding of thick aluminum wire, the adhesion between the welding wire and the base metal occasionally occurs, especially when the arc is started, the adhesion between the welding wire and the base metal occurs frequently. Because the traditional control method is that the welding wire is sent out normally after the output current is output, so the welding wire is also sent out continuously when the welding wire and the base metal are adhered, but the arc cannot be formed due to the adhesion of the welding wire and the base material, so it is necessary to stop the welding process and cut the welding wire before re-starting the arc welding. Bring inconvenience to welding operation. In addition, the conventional control method is also easy to cause the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/095
Inventor 苏宪东李亚群郭怀书
Owner PANASONIC WELDING SYST TANGSHAN
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