High-precision gyroscope

The utility model discloses a high-precision gyroscope, and particularly relates to the field of tool clamps which utilize idler wheels to drive round bar type workpieces to rotate around the axes of themselves. In an active rotating mechanism of the high-precision gyroscope, main driving shafts are connected with synchronous tooth-shaped wheels of the main driving shafts respectively through two synchronous tooth-shaped belts, and two shafts which are connected with the synchronous tooth-shaped wheels are respectively connected a driving wheel after penetrating through a body. In a driven pressing mechanism, an actuator pushes a driven wheel at one end of a lever towards the two driving wheels through the lever. According to the gyroscope, the idler wheels are used for driving the workpieces to rotate around the axes of themselves, the middle link of a rotary mechanism is saved, accumulated tolerance is reduced, and the cylindricity of the workpieces and the coaxiality of the workpieces are directly reflecte