Method for drilling holes in pipe plate by means of fixing of multiple radial drills

The invention discloses a method for drilling holes in a pipe plate by means of fixing of multiple radial drills. A plurality of tool square boxes are arranged in an area of a compacted foundation ground, the upper planes of the tool square boxes are corrected through an infrared theodolite, the pipe plate is arranged above the tool square boxes, and recalibration is carried out according to the planeness required by a pipe plate part drawing. The multiple bolt holes connected with a formwork and a connecting plate tool are drilled in the pipe plate, and then the formwork and the connecting plate tool are assembled to be closely and attached to the pipe plate into a whole. In addition, the radial drills are demounted from an original mounting base and mounted on the connecting plate tool of the pipe plate, and cooling lubricating systems of various drilling machines are transformed. The transformed radial drills are fixed above the pipe plate in a partitioning manner, the mounting precision of the drilling machines is corrected, and heat exchange pipe holes are drilled according to the positions, with the machined bottoms holes, of the drilling formwork in a partitioning manner. A common machine tool is adopted for machining large pipe plate pipe holes on site, efficiency is high, cost is low, quality is good, and high adaptability is achieved.