Double-channel battery bottom welding device

The invention discloses a double-channel battery bottom welding device which comprises a rack, a conveying assembly, a welding assembly, a testing assembly and a groove pressing assembly. The conveying assembly comprises a conveying groove and a pushing part, and two welding assemblies are arranged on the conveying groove in parallel; The testing assembly is provided with a turntable, and the outer side of the turntable is sequentially provided with a tab positioning assembly, a welding spot detection assembly, an insulation pad placement assembly, a short circuit detection assembly and a shunting assembly. The shunting assembly is connected with the testing assembly and the groove pressing assembly. The welding assembly comprises a welding pin clamp, a welding head and a welding air cylinder for driving the welding pin clamp to move in the vertical direction. By arranging the conveying assembly and the welding assembly, the two-channel battery bottom welding device can conduct bottom welding operation on two