Single slideway sleeve barrel mechanical arm

The present invention provides a single-slideway sleeved manipulator. The manipulator includes a single-bar slideway, the both sides of which are provided with grooves, an inner sleeve with raised keys is mounted on the single-bar slideway, an outer sleeve is mounted outside the inner sleeve, a gear ring is arranged on the lower end of the outer sleeve, the lower end of the inner sleeve is provided with a lug boss, on which a direct current servo motor is fixed, and a driving gear is mounted on the shaft of the direct current servo motor and engaged with the gear ring. A fixed pulley is fixed on the upper end of the single-bar slideway, a winding pulley mounted on the lower end is jointed with a servo winding motor via a coupling, both ends of a steel rope is fixed by two connecting bolts mounted on the inner sleeve, the steel rope is orderly connected with the fix pulley and the winding pulley via the grooves on both sides of the slideway, the inner sleeve is provided with a retaining scraper, a mechanical a