Provides a multi-spot welding device connection structure for connecting a plurality of seupok terminal of the power source device 10 corresponding to each of the wires 20 connected to the terminals provided in each welding device 18 to the in-line.; In the present design a multi-spot welding device connection structure includes a plurality of seupok welding device 18 in the in-line connection to the terminals of the connector 22 corresponding to each of the wires 20 connected to the terminals respectively provided on, and the connector 22 the concatenation of the line 20 connected to the terminal to the terminal of the power supply device 10 corresponding to each. For example connected to one or two times, the first terminal of seupok welding device 18, connector 22, which is A terminal corresponding to the line 20 connected to each of the wires connected to the respective B terminals of the seupok welding device 18 ( 20) connected to the a terminal of a corresponding connection to the 3-or 4-terminals of the connector 22, which is then, connectors 22, power supply device 10 corresponding to synthesize the 2 terminal 1 and of the connector ( 22) is connected to a B terminal of the power source device 10, corresponding to short-circuit the terminals 4 and 3 of the.
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