Stable mounting rack for arc welding machine

The utility model discloses a stable mounting rack for an arc welding machine, which relates to the technical field of arc welding machines and comprises an arc welding machine body, two bases fixedly mounted at the lower end of the arc welding machine body, a power input end fixedly mounted below the front end of the arc welding machine body, and a cathode output end fixedly mounted on the arc welding machine body on one side of the power input end. A positive electrode output end is fixedly installed on the other side of the power input end, a plurality of adjusting knobs are fixedly installed above the front end of the arc welding machine body, and a plurality of indicating lamps are fixedly installed at the positions, above the adjusting knobs, of the arc welding machine body. According to the stable mounting frame of the arc welding machine, the guide cover capable of adapting to rotation can carry out adaptive input adjustment on welding input from different angles, the situation that normal input is af