Welding system and communication method of welding system
A welding system and welding power source technology, applied in welding equipment, distribution line transmission system, arc welding equipment, etc., can solve the problem of inability to communicate signals accurately, and achieve the effect of accurate communication
Active Publication Date: 2019-02-05
DAIHEN CORP
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Problems solved by technology
[0005] However, in the case of the method of superimposing signals between two power cables to perform communication, due to the influence of noise superimposed on the power cables, etc., it may not be possible to communicate signals accurately.
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Embodiment Construction
[0085] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
[0086] Figure 1~3 It is a figure for demonstrating the welding system A1 which concerns on 1st Embodiment. figure 1 The overall configuration of the welding system A1 is shown. figure 2 It is a sectional view for explaining gas piping. image 3 An example of the internal configuration of the welding power supply unit and the feeding device power supply unit is shown.
[0087] The welding system A1 includes a welding power supply unit 1, a welding wire feeding unit 2, a welding torch 3, power cables 41, 42, power transmission lines 51, 52, 52′, a gas cylinder 6, and a gas pipe 7. The welding system A1 actually includes a wire reel on which a wire electrode is wound, and the like, but description and description in the drawings are omitted.
[0088] One output terminal a for welding power of the welding power source device 1 is connected to the wire f...
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The present invention provides a welding system and a communication method of the welding system, which can communicate more accurately than the case where signals are superimposed between two power cables. In the welding system (A1), equipped with: a welding power supply unit (1), a welding wire feeding unit (2), a welding torch (3), and a power cable (41) connecting the welding power supply unit (1) and the welding torch (3) , the power cable (42) that connects the welding power supply unit (1) and the workpiece (W), and the power supply unit (21) that is connected to the welding wire feeding device (2) and the device for connecting the welding power supply unit (1) The power transmission line (51) of the power supply (12) for the feeding device that supplies power to the power supply unit (21), the power transmission line (52) that connects the power supply (12) for the feeding device and the power cable (41), and the power transmission line (52) that connects the power supply unit (21) and the power transmission line (52') of the power cable (41). The welding power supply unit (1) and the welding wire feeding unit (2) communicate by superimposing signals between the power transmission line (51) and the power cable (41).
Description
technical field [0001] The invention relates to a welding system and a communication method of the welding system. Background technique [0002] A welding system of the fusing electrode type is generally divided into a welding power supply unit that does not move due to its weight, and a welding wire feeding unit that is carried by the welding operator when the welding location is changed. When the welding power source device is installed in a place away from the place where the welding operation is being performed, in order to set welding conditions such as welding voltage, the operator goes to the installation place of the welding power source device, resulting in poor work efficiency. In order to solve this problem, there is a method of connecting the welding power supply unit and the welding wire feeding unit with a multi-core cable of a control line to transmit and receive control signals. However, when moving the welding wire feeder due to a change in the welding loca...
Claims
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IPC IPC(8): H04B3/54
CPCB23K9/1043B23K9/1087B23K9/125B23K9/173
Inventor 土井敏光
Owner DAIHEN CORP