Maintenance mechanism of connector assembly

The invention discloses a maintenance mechanism of a connector assembly. The maintenance mechanism is characterized in that the maintenance mechanism comprises a cuboid housing; a plurality of cavities identical in shape are equally spaced in the cuboid housing side by side; solid parts are arranged among the cavities; and each cavity comprises the middle part and two end parts arranged at two sides of the middle part, all the middle parts are mutually communicated, and the cavity width of each middle part is larger than the cavity width of two end parts, and the cavity width of the two end parts is gradually reduced from the side close to the middle part to the side far from the middle part. Deformed pins can be inserted into the middle parts, the pins can move to any side until being clamped in the cavities of the two end parts, and then the maintenance mechanism moves from the robot parts to tail parts of the pins in a clamping manner, so that arranging mode of the pins can be rapidly corrected to an equally-spaced side-by-side mode. The maintenance mechanism has the advantages that the structure is simple and the usage is convenient, the electric connection effect of the pins is improved, and by rubbing splotchy pins against a grinding layer, the splotchy pins can be cleaned easily.