The invention relates to a
machine tool for the running-in process of a ball and a
valve seat of a
ball valve. The
machine tool comprises a beam, a left
grinding head spindle
assembly, a right
grinding head spindle
assembly, a left spindle feed and
ball screw drive
system, a right spindle feed and
ball screw drive
system, a ball
motion control device and a
valve seat clamping fixture, wherein the beam is provided with a guide rail, the left and the right
grinding head spindle assemblies are arranged on the guide rail, the output ends of the spindle feed and
ball screw drive systems are respectively connected with the grinding head spindle assemblies, the ball
motion control device is arranged in the interspace between the left and the right grinding head spindle assemblies, and the
valve seat clamping fixture is arranged on a cardan joint which is arranged on the output ends of the left and the right grinding head spindle assemblies. The invention aims at designing a
machine tool which can run in and process the ball and the valve seat of the
ball valve and achieve a high grinding precision and high efficiency. Compared with the prior art, the
machine tool for the running-in process of the ball and the valve seat of the
ball valve has the advantages that the grinding degrees and the grinding precision are controllable, the
processing efficiency is high, and the cooperation between the ball and the valve seat can completely meet the hard seal requirements.