The utility model provides a kind of
welding device, including mounting seat, and
welding cavity is equipped in mounting seat;Mounting seat is equipped with first installation port and second installation port;Multiple first clamps are detachably embedded in first installation port, the shape of the first clamping hole of each first clamp is different, and first shape
pipe can be inserted into
welding cavity through first clamping hole;Multiple second clamps are detachably embedded in second installation port, the shape of the second clamping hole of each second clamp is different, and second shape
pipe can be inserted into welding cavity through second clamping hole;Heating
assembly;When a first clamp is embedded in first installation port and a second clamp is embedded in second installation port, first clamp, second clamp and mounting seat form welding cavity;Part of heat generated by heating
assembly is transmitted to welding cavity through mounting seat, and part of heat is transmitted to first clamp and second clamp to heat first shape
pipe and second shape pipe.The present welding device is suitable for
brazing of pipe fittings with different shapes and sizes.