Device for processing high-accuracy cold-drawn shaft

The utility model discloses a device for processing a high-accuracy cold-drawn shaft. The device comprises a lathe body, a drawing rack, one or more master cylinders, a driving wheel, bearings and claws, wherein the lathe body is arranged in the drawing rack, a hydraulic motor and a speed reducer are arranged in the drawing rack, a rotary shaft of the hydraulic motor is connected with a power input terminal of the speed reducer, a power output terminal of the speed reducer is connected with the driving wheel, end parts of piston rods of the master cylinders are axially fixed to the lathe body through the bearings, support lugs are arranged at the two sides of each master cylinder and are connected with the claws through pin shafts, and guide rails are arranged on the drawing rack. According to the device, due to the adoption of a horizontal guide rail structure, the continuous cold drawing work is realized, and the drawn accuracy of the cold-drawn shaft is guaranteed; and as hydraulic transmission is stable in operation, the concentricity of drawing force and the center of the cold-drawn shaft is guaranteed structurally, so that the quality of products is improved.