Energy -conserving ac arc wedling machine

The utility model relates to an electric power tech field, concretely relates to energy -conserving ac arc wedling machine, including the track, be equipped with the small rail car on the track, fixedly connected with supports the pole setting on the small rail car, it feeds quick -witted case to be connected with in the support pole setting, feeding quick -witted case one end and being connected with counter weight mechanism, the other end is connected with the welding head, it draws together feed drive pole and step motor to feed quick -witted case and bag, the feed drive pole links to each other with welding head and counter weight mechanism, be connected with the counter weight rack on the feed drive pole, the machine incasement is equipped with feed gear and counter weight gear, the feed gear links to each other with the feed drive pole, the counter weight gear links to each other with counter weight mechanism, makes welding carriage along the straight line walking, makes it to walk the turning, forms welding carriage and welding head and independently follows rectilinear movement separately, and the two passes through the run -in formation welder head of orbit at the free welded geometrical locus in plane, and does not need the auxiliary motion of horizontal revolving platform.