Weld joint real time monitoring method of electric welding machine

A technology of real-time monitoring and electric welding machine, applied in real-time monitoring of welding seam position, real-time monitoring of welding seam of electric welding machine, can solve problems such as unstable system operation and abnormal operation, achieve real-time sampling and high-speed transmission, and good real-time performance , the effect of high control precision

Inactive Publication Date: 2009-04-22
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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Problems solved by technology

[0003] With the continuous improvement of automatic welding quality requirements, the traditional arc sensor system with single-chip microcomputer as the core, due to the limitation of its main frequency and peripheral resources, when further improving the sampling accuracy, high-speed transmission of large amounts of data and multi-task parallel processing, The system will appear to be unstable or even unable to operate normally

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  • Weld joint real time monitoring method of electric welding machine

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Embodiment Construction

[0013] The method for real-time monitoring of the welding seam of the electric welding machine of the present invention will be further described in detail below.

[0014] The welding seam real-time monitoring method of the electric welding machine of the present invention comprises the steps of:

[0015] 1) Convert the welding current into a corresponding voltage signal through the Hall current sensor;

[0016] 2) After the signal is filtered, the DSP controller collects it and completes the A / D conversion of the analog signal, and then divides it into two outputs: one signal is output through the operation of the algorithm programmed in the event manager module to obtain an output control signal to control The actuator performs deviation correction, and the other channel is sent to the PC through the serial communication module of the DSP;

[0017] 3) The PC is used as the upper computer to perform various processing, storage and graphical display of the welding current on ...

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Abstract

The invention relates to a real-time weld seam monitoring method for an electric welding machine. The method comprises the following steps: (1) a Hall current sensor converts a welding current into a corresponding voltage signal; (2) a DSP controller acquires the signal which is filtered, and finishes A/D conversion of an analogue signal, then outputs the analogue signal in two paths, one path of the signal is operated by a scheduled algorithm in an event manager module to obtain an output control signal which is used for controlling an actuator to correct an error, and the other path of the signal is sent to a PC through a serial communication module of the DSP; and (3) the PC is taken as an upper computer to perform various data processing, data storage and graphical display of the welding current, thus achieving real-time monitoring of the running state during the whole welding procedure. The real-time weld seam monitoring method can help realize real-time sampling and high-speed transmission of the welding current, and has better real-time characteristic and high control precision.

Description

technical field [0001] The present invention relates to the technical field of a real-time monitoring method, in particular to the technical field of a real-time monitoring method for a welding seam position, in particular to a real-time monitoring method for a welding seam of an electric welding machine. Background technique [0002] In the automatic welding process, the traditional seam tracking mechanism can only correct the deviation according to the predetermined tracking speed and accuracy. Due to the many interference factors in the welding process, the set parameters often cannot meet the tracking requirements of the entire welding process, which affects the deviation correction effect. Therefore, it is necessary to transmit the collected arc signal to the PC through the serial port for data processing and graphic display. When the external environment changes, the tracking parameters can be optimized in real time according to the arc signal waveform reflected on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 舒振宇
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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