| 摘要 |
PURPOSE: A monitoring apparatus for arc welding is provided to simultaneously measure welding current, welding voltage, wire feeding speed, and feeding voltage in such a manner that they are simultaneously monitored. CONSTITUTION: A monitoring apparatus for arc welding includes detecting devices(110,120,210,220), a signal processing device(320), a data input device(340), a memory device(390), an image information converting device(370), a motoring device(380), a comparator(350), an alarming device(360), a control device(310), and a user interface device(330). The detecting devices(110,120,210,220) detects welding current, welding voltage, wire feeding speed, and feeding voltage when the arc welding is carried out. The welding current, welding voltage, wire feeding speed, and feeding voltage are converted into digital signals by means of the signal processing device(320) and are stored in the memory device(390). The user interface device(330) is connected to the control device(310) so as to input commands.
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