Welding device

Abstract

The utility model discloses a welding device, and relates to the technical field of lithium ion battery production. The welding device comprises a support, two fixing assemblies, a driving assembly and a welding assembly, the support is configured to bear the cylindrical battery, at least one end of the cylindrical battery is a welding end, and a pole is arranged on the end face of the welding end in a protruding mode; each fixing assembly comprises a supporting frame and a fixing part rotationally arranged on the supporting frame, the fixing parts of the two fixing assemblies get close to each other from the two ends of the cylindrical battery so as to clamp the cylindrical battery, the fixing part located on one side of the welding end comprises an annular baffle, and the annular baffle abuts against the welding end and is arranged around the pole; the driving assembly is configured to drive the cylindrical battery to rotate around the axis of the cylindrical battery; the welding assembly is configured to weld the welded end. According to the welding device, the pole of the cylindrical battery can be protected when the cylindrical battery is welded, the use performance of the cylindrical battery is improved, and the yield is increased.

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