Welding equipment for lower coaming of agricultural vehicle hood

The invention discloses welding equipment for a lower coaming of an agricultural vehicle hood. The welding equipment comprises a clamping bottom plate, wherein a side fixing frame is arranged on the clamping bottom plate, an auxiliary fixing frame is arranged on one side of the side fixing frame, a plurality of main fixing frames are further arranged on the clamping bottom plate, the main fixing frames are distributed in an axial array mode, a pressing fixing frame is arranged on the clamping bottom plate, a first jacking frame and a second jacking frame are further arranged on the clamping bottom plate, the side fixing frame comprises a first fixing plate, a first mounting column is arranged on the first fixing plate, first fixing screws distributed in an array mode are further arranged on the first fixing plate, a first mounting arm is arranged on one side of the first mounting column, a mounting arm fixing block is arranged on the other side of the first mounting column, a first aircylinder is arranged on