Supporting device for closed-loop sensors of joints of six-joint robot

The invention discloses a supporting device for closed-loop sensors of joints of a six-joint robot, and relates to the technical field of robots. The supporting device comprises a rotating shaft, a tray, inner nuts, tray locking nuts, rotating shaft locking nuts and bearings, wherein the rotating shaft and the rotating shaft locking nuts are fixedly connected and are placed on an inner side; the rotating shaft can be fixedly connected with a shaft connector in a bracket and can also be sleeved by a hollow shaft in an angle encoder; the rotating shaft is provided with threads; the connection between the rotating shaft and the angle encoder can be locked and fixed through the inner nuts; the tray and the tray locking nuts are fixedly connected and are placed on an outer side; the tray can be fixed to the angle encoder; the tray, the rotating shaft, the tray locking nuts, the rotating shaft locking nuts and the bearings form an inner ring structure and an outer ring structure which can relatively rotate; the bearings are jointly packaged and fixed by the rotating shaft, the tray, the inner nuts, the tray locking nuts and the rotating shaft locking nuts. The supporting device disclosed by the invention has the beneficial effects that the supporting device can well adapt to the angle encoders of various sizes, and can be conveniently connected with a fixing bracket.