Efficient and stable numerical control flame welding device

The efficient and stable numerical control flame welding device comprises a base, a sliding rail is connected to the top end of the base, a moving mechanism is slidably arranged at the top end of the sliding rail, a feeding and discharging fixing mechanism is connected to the top end of the moving mechanism, and a control table and an airtight chamber are connected to the top end of the base; connecting rods are connected to the two sides of the inner wall of the airtight chamber, annular frames are connected to the ends, close to each other, of the connecting rods, driving units are rotationally arranged on the two sides of the outer ring of each annular frame, multiple sets of internally-threaded pipe frames are rotationally arranged on the outer ring of each annular frame, and one end of each internally-threaded pipe frame is in threaded connection with a screw. The pipeline stability is guaranteed, on the other hand, the welding stability is guaranteed, the use range is effectively widened, the welding st