The invention discloses an efficient horizontal position
welding process method for a pumping storage seat ring fixed guide vane. Firstly, the seat ring fixed guide vane with the thickness of 150-260 mm is processed into a
narrow gap groove with the width of 10-25 mm,
robot narrow gap gas shield
welding accessibility is simulated offline,
welding path
programming is carried out, two sections of a seat ring are stacked, the seat ring is placed at a horizontal position, the
narrow gap groove is welded to 1 / 4-1 / 3 depth after alternate backing welding, back gouging and fillet welding are conducted on the back face, and then the narrow gap groove is welded alternately. In the
welding process, two paths are welded on each layer, the lower path is welded firstly, then the upper path is welded, a
robot programming position register is used for achieving welding path automatic deviation, a
weld pool edge linear image obtained through a
CMOS welding camera is used for judging and adjusting welding deviation, and the problem about the fusion quality of the side wall of efficient
robot narrow gap horizontal welding of the seat ring is solved. Compared with conventional manual welding, the welding amount is reduced by 60%-80%, the procedure of turning over the seat ring in a reciprocating manner is omitted, and the production efficiency is improved by 1-2 times under the guarantee of the stable and reliable welding quality.