Spot welding machine for silencer barrel of generator set

The invention relates to the technical field of barrel spot welding, in particular to a generator set silencer barrel spot welding machine which comprises a bottom plate, a welding detection mechanism for conducting matched grinding on a barrel is fixedly connected to the upper end of the bottom plate, the welding detection mechanism comprises a connecting plate arranged at the upper end of the bottom plate in a sliding mode, and a supporting column is fixedly connected to the upper end of the connecting plate; a fourth motor is fixedly connected to the position, close to the upper end, in the supporting column, a sixth electric telescopic rod is fixedly connected to the transmission shaft end of the fourth motor, a second fixing disc is fixedly connected to the telescopic end of the sixth electric telescopic rod, and a plurality of seventh electric telescopic rods arranged circumferentially are arranged on the side face of the second fixing disc; the automatic spot welding device has the advantages that duri