Balance testing device and testing method for automatic welding machine

The invention belongs to the technical field of welding machine testing devices, and particularly relates to an automatic welding machine balance testing device and a testing method.The automatic welding machine balance testing device comprises a base, a supporting plate is arranged at the top of the base, two sliding rods are arranged at the bottom of the supporting plate in parallel, and the front end and the rear end of each sliding rod are fixedly connected with the top of the supporting plate through a fixing block; the sliding rod is sleeved with two sliding blocks in a sliding mode. Before welding, the position of the supporting plate is adjusted to enable the through hole in the supporting plate and the bottom of the welding machine to be located in the same plane, then the adjusting device is adjusted to extend upwards from the through hole, then two plates to be tested are placed at the bottoms of the two pressing devices respectively, then the two plates are pushed respectively, and then the two pl