Standard knot positioning and welding device

The utility model relates to a standard knot positioning and welding device which comprises a base, a first vertical plate is fixedly arranged at the top end of the base, supports are symmetrically arranged on the two sides of the first vertical plate in a sliding mode, second vertical plates are rotationally arranged on the sides, away from the first vertical plate, of the supports, and fixing plates are symmetrically arranged on the sides, away from the supports, of the second vertical plates in a sliding mode. First rotating shafts are rotationally embedded in the fixing plates in a penetrating mode, clamping plates are rotationally arranged on the adjacent sides of the fixing plates, the ends, close to the clamping plates, of the first rotating shafts are fixedly connected with the adjacent sides of the clamping plates, and a plurality of positioning inserting rods are symmetrically and fixedly arranged at the bottom end of the upper fixing plate. A first sliding groove is formed in the first vertical pla