Intelligently-manufactured roundness detection rack for pipe fittings

The invention provides a roundness detection rack for intelligently manufactured pipe fittings, and relates to the technical field of pipe fitting roundness detection. The intelligent manufactured roundness detection rack for the pipe fitting comprises a base, a second mounting seat is fixedly connected to the middle of one side of the top end of the base, a second rotating seat is rotatably connected to the middle of the inner side of the second mounting seat, and a driving motor is fixedly connected to the middle of the outer side of the second mounting seat. And a rotating shaft of the driving motor penetrates through the mounting seat I and is fixedly connected with the middle part of a rotating seat II. The rotating shaft is connected with the inner wall of the centering pipe fitting in an air bag inflation mode, then the driving motor is adopted to drive the centering pipe fitting to rotate circumferentially, the detection pen is adopted to perform line drawing detection on the outer wall of the centeri