Semi-automatic assembling device for space coiling type extension arm

The invention relates to the technical field of universe sailing aircraft parts, and discloses a semi-automatic assembling device for a space coiling type extension arm, which comprises a base, a cylindrical boss is arranged in the middle of the upper surface of the base, and the upper end of the cylindrical boss is rotatably connected with a middle shaft; an upper-layer hinge joint fixing support and a lower-layer hinge joint fixing support are arranged on the upper side and the lower side of the middle shaft respectively, hinge joints are arranged at the ends, away from the middle shaft, of the upper-layer hinge joint fixing support and the lower-layer hinge joint fixing support, a support is arranged on the outer edge of the base, and a stiffening cable penetrating mechanism shell is arranged on the support. Two rotating arms facing away from the center of the base are arranged on the left side of the stiffening cable inserting mechanism shell, and two rotating arms facing close to the center of the base a