Three-degree-of-freedom hooke hinge

The invention provides a hooke hinge for a six-degree-of-freedom parallel motion platform. The hooke hinge has three degrees of freedom, namely a degree of freedom of rotation around an X axis, a degree of freedom of rotation around a Y axis, and a degree of freedom of rotation around a Z axis. Each degree of freedom of rotation is mainly composed of four parts, namely a hinge support, a pin shaft, a bearing and a bearing cap; the structure of the degree of freedom of rotation around the X axis comprises a base, a left support, a right support, a central pin shaft, the bearing and the bearing cap; the structure of the degree of freedom of rotation around the Y axis comprises a base, a left support, a right support, two combined pin shafts, the bearing and the bearing cap; the structure of the degree of freedom of rotation around the Z axis comprises the base shared with the degree of freedom of rotation around the X axis, and the pin shaft, the bearing and the bearing cap.