A precise positioning and adjusting tool between a
turret cradle and a high-
low speed reducer comprises an L-shaped positioning plate and an adjusting device, the L-shaped positioning plate comprises a first turning face and a second turning face, a plurality of positioning holes are formed in the first turning face, a plurality of eccentric bolts penetrate through the positioning holes and strip-shaped holes formed in the cradle, the L-shaped positioning plate is positioned on the upper surface of the cradle in a matched mode, and the adjusting device is arranged on the second turning face. A plurality of assembling holes for assembling the adjusting device are formed in the second turning surface; the adjusting device comprises a bolt bar, the front end of the bolt bar is a mounting part, the rear end of the bolt bar is a
handle, the middle end of the bolt bar is a connecting section, a small-
diameter section is arranged between the mounting part and the connecting section, a large-
diameter section is arranged between the
handle and the connecting section, and external threads are arranged on the large-
diameter section; the bolt rod is sleeved with a tubular positioning thread sleeve, the front end of the positioning thread sleeve is a small-inner-diameter end, the rear end of the positioning thread sleeve is a large-inner-diameter end, a
flange is arranged on the periphery of the front end of the positioning thread sleeve, the rear end of the positioning thread sleeve is provided with an internal thread used for being matched with the large-diameter section, and the installation part is detachably connected with an abutting head.