Multi-degree-of-freedom telescopic bidirectional sliding rail mechanism

The invention discloses a multi-degree-of-freedom telescopic bidirectional sliding rail mechanism which comprises a first-layer supporting frame and a second-layer supporting frame, a four-side tackle is installed in the middle of a sliding rail, a bottom plate is installed at the top end of the four-side tackle, a first motor is installed at one end of the bottom plate, and the second-layer supporting frame is installed at the top end of a drag chain structure. The second-layer supporting frame is of a rectangular frame structure and is symmetrically arranged, a left second-level sliding rail is installed in the middle of one end of the second-layer supporting frame, a sliding rail is installed on the inner side of the connecting mechanism, and a three-face pulley is installed at the bottom end of the left second-level sliding rail. A mechanical auxiliary structure is designed and can be arranged on the outer side of a competition field of a green fight, robots on the left field and the right field are contr