Drilling device for flange at end part of pipeline pump

The invention relates to the technical field of pipeline pump flange manufacturing equipment, and provides a pipeline pump end flange drilling device which comprises a drilling platform and a rotating disc arranged on the drilling platform, a plurality of three-jaw chucks used for fixing flanges are evenly arranged on the rotating disc, and a feeding assembly used for transporting the flanges to the three-jaw chucks is arranged on the drilling platform. According to the automatic feeding and discharging device, the defects in the prior art are overcome, the design is reasonable, the structure is compact, the clamping unit downwards clamps the flange and then rotates to the position above the three-jaw chuck, the flange falls onto the three-jaw chuck, in the same way, another feeding assembly is arranged, the perforated flange is taken down from the three-jaw chuck, automatic feeding and discharging are achieved, and the labor cost is greatly saved. The flange conveying device is energy-saving, environment-fri