The invention discloses high-precision
grinding equipment for a three-eccentric center
butterfly valve sealing pair, and belongs to the technical field of
grinding equipment, the high-precision
grinding equipment comprises a
machine body, a
machine base, a rotating base, a cross beam, a grinding head sliding base, a
workbench, a dynamic and static pressure grinding head electronic shaft, an X-axis moving
assembly, a Z-axis moving
assembly and a swing angle driving mechanism, the X-axis moving
assembly is used for driving the transverse sliding base to move, and the Z-axis moving assembly is used for driving the Z-axis moving assembly to move; the swing angle driving mechanism is used for driving the rotating base to rotate relative to the
machine base. Through the arrangement of the swing angle driving mechanism, the X-axis moving assembly and the Z-axis moving assembly, the
grinding wheel always moves on the grinding sealing face of a workpiece in the
grinding process, that is, along with grinding, the ideal smoothness of the grinding face of the sealing pair reaches Ra0.2 or below, the roundness of the grinding inner circle and the grinding outer circle reaches 0.003 mm, the
machining time is fully utilized, the grinding efficiency is improved, grinding stress is uniform, and the service life of the
grinding wheel is prolonged. The grinding precision is improved, the universality and the sealing performance of the sealing pair of the three-eccentric
butterfly valve can be guaranteed, and 100% exchange of the sealing pair is achieved.