Welding gun for welding technology learning and practice

The invention belongs to the technical field of welding learning, and particularly relates to a welding gun for welding technology learning and practice. The welding gun comprises a gun body, a holding handle and a gun head, wherein the holding handle is arranged on a position below the tail part of the gun body; the gun head is arranged on the position at the front end of the gun body; the position, at a gun head joint, on the gun body is connected with a horizontal plate through a ring-shaped clamping mechanism; the horizontal plate is positioned above the gun body, and the upper surface ofthe horizontal plate is in hinged connection with a horizontal rocking bar through a bracket; the horizontal rocking bar is parallel to the gun body, and one end, adjacent to the gun head, of the horizontal rocking bar is equipped with a high-temperature-preventing highlight-preventing camera mechanism which points to the gun head; and the high-temperature-preventing highlight-preventing camera mechanism is connected with