Embedded part welding machining device

The utility model discloses an embedded part welding machining device, and belongs to the technical field of welding machining of electric power auxiliary devices. The device comprises a main supporting column; a cross plate is mounted at the top of the main supporting column; four through holes are symmetrically formed in the four extending ends of the cross plate; the upper portion of the auxiliary support set is detachably installed at the through hole of the cross plate, and the lower portion of the auxiliary support set is arranged at the end corner position of the steel plate to be welded. A pipe sleeve clamping piece is detachably installed at the position, right opposite to the through hole, of the auxiliary support set. The pipe sleeve clamping piece penetrates through the through hole and the auxiliary support set to be arranged, a guide hole is formed in the pipe sleeve clamping piece in the axial direction, the size of the guide hole is matched with the outer diameter of a reinforcing steel bar to