Revolving body intersection line cutting and welding device

The invention discloses a revolving body intersection line cutting and welding device which relates to the field of revolving body cutting and welding equipment manufacturing, and comprises an up and down positioning system, an axial mobile system, a cutting system and a control system; the up and down positioning system comprises a stepper motor B (8), a screw rod (9), a nut (7), a mobile pair (4) and a gear rack (3); the cutting system comprises a stepper motor A (6), a small gear (5), a large gear ring (2), a cutting execution head clamp (11), a plasma cutting machine spray nozzle (1) and a roller (10); and the axial mobile system comprises a stepper motor C (15), a screw rod (14), a nut (13), a revolving body positioning platform (12) and a mobile pair (16). The revolving body intersection line cutting and welding device has the advantages of convenient operation, high processing precision and low manufacturing cost.