The arc welding joint adjustment device for measuring the bath temperature of the present invention belongs to the technical field of welding equipment and includes three different directional temperature sensor clamping devices, a welding torch connector and a wire feed connector, one end of the robot connection plate And the three sensor fixing devices are connected to the three sides of the robot connecting plate, and the three sensor fixing devices are connected to the three sides of the robot connecting plate, The measuring points of the three temperature sensors may be provided so as to be in the advancing direction of the bathtub and on the left and right sides of the bathtub. The present invention can flexibly connect the arc welding torch and the temperature measuring sensor and conveniently adjust the relative position between the arc welding torch and the welding product, the temperature measuring sensor and the welding product, the arc welding torch and the temperature measuring sensor, To accurately measure the temperature of the bathtub, to ensure the quality of composite welding and excellent molding effect.
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