Clamping device for clamping spherical workpiece

The invention relates to a clamping device for clamping a spherical workpiece, and belongs to the technical field of clamping equipment. The device comprises an upper clamping plate and a lower clamping plate, wherein upper lock holes are formed in the two sides of the upper clamping plate; lower lock holes are formed in the two sides of the lower clamping plate; two threaded fixing rods are arranged; the threaded fixing rods penetrate through the upper lock holes and are screwed in the lower lock holes; each of the upper clamping plate and the lower clamping plate is provided with four clamping holes evenly distributed in the circumferential direction; and a clamping rod penetrates into each clamping hole. The device is reasonable and simple in structure, easy to produce and manufacture and convenient to use. According to the clamping device for clamping the spherical workpiece, when the device is used, the spherical workpiece is placed between the upper clamping plate and the lower clamping plate; the threa