The utility model discloses a front inclined tube assembling and
welding pneumatic device which comprises a fixing base, a stand column connected above the fixing base, a pressing air cylinder connected to the top of the stand column, a front
vertical tube pressing head connected to the
power output end of the pressing air cylinder, a cross beam arranged in the middle of the stand column, a front
vertical tube base arranged on the cross beam, and a reinforcing rib base arranged on the upper surface of the cross beam. An ultra-thin air cylinder is connected to the lower portion of the reinforcing rib base, a through hole is reserved in the reinforcing rib base corresponding to the
power output end of the ultra-thin air cylinder, an oblique beam is connected to the end, away from the stand column, of the cross beam, the other end of the oblique beam is obliquely connected to the fixing base downwards, and a plurality of U-shaped bases are arranged on the upper surface of the oblique beam. The side face of the oblique beam is connected with a rotating cylinder, and the
power output end of the rotating cylinder is connected with a pressing plate. The front vertical
pipe, the reinforcing rib and the front inclined
pipe can be combined and welded, the consistency of product quality can be effectively improved, the production efficiency of products is improved, and the labor intensity of workers is greatly reduced.