Installation method and device for diesel engine base oil pan flange

The invention discloses an installation method and device for a diesel engine base oil pan flange, and the installation device is an automatic trolley and comprises a trolley body, wheels, a hydraulic jack, a tray and a control box. The flange is placed on a movable automatic mounting device, then the mounting device automatically and accurately conveys the flange to a preset positioning and welding position according to set instruction parameters, finally welding and mounting of the flange on the engine base oil pan are completed, the precision requirement is met, and the method specifically comprises the steps that firstly, the oil pan is lifted, and the oil pan is welded and mounted on the engine base oil pan; the method comprises the following steps of 1, welding, 2, part scribing, 3, parameter setting, and 4, starting a trolley to complete welding of the oil pan flange. The mounting size precision of the flange is improved, manpower is saved, working time is shortened, working efficiency is improved, eco