Self-centering pick-and-place device for robot end tool

The utility model provides a robot end tool self-centering pick-and-place device which comprises a containing box body which comprises a lower box body with an opening in the upper end and an upper box cover hinged to the upper end opening of the lower box body. The driving mechanism is arranged in the lower box body, and the upper box cover is driven by the driving mechanism to cover the upper end opening of the lower box body and be turned over to be opened; the centering supporting mechanisms are arranged in the lower box body, the centering supporting mechanisms are fixed to a bottom plate at the bottom of the lower box body, the supporting rods are fixed to the bottom plate, supporting grooves are formed in the upper ends of the supporting rods, and the upper portions of the robot tail end tools placed in the lower box body are supported in the supporting grooves respectively. The utility model has the beneficial effects that the tool at the tail end of the robot is supported by the supporting groove, so