The invention provides a
welding device for ship repair, and belongs to the technical field of
welding. Comprising a base, a supporting plate is fixedly arranged on the surface of the base, a sliding plate is arranged on the inner wall of the supporting plate in a sliding mode, a
welding gun for welding the ship welding position is installed on the surface of the sliding plate, and a cleaning part for cleaning welding
slag generated during welding of the welding gun is installed on the surface of the sliding plate; by arranging the cleaning part, welding can be carried out while the whole equipment is moved, welding
slag generated by welding at the welding position can be adsorbed during welding, splashing of the welding
slag is prevented, a pipeline can be knocked through
cooperative work of a motor, a rotating rod, a round wheel, a connecting rod, a sliding block, a downward pressing rod, a
torsion spring, a rotating strip, a spring hammer and other components, and therefore the pipeline can be conveniently welded.
Welding slag in the pipeline is knocked off due to vibration and sucked away by the fan, cleaning of the welding slag adsorbed to the inner wall of the pipeline is achieved, smoothness of the pipeline is guaranteed, and attachment of the welding slag to the inner wall of the pipeline is effectively reduced.