Position calibration device for adsorption head of mechanical arm

The utility model provides a position calibration device for an adsorption head of a mechanical arm. The adsorption head comprises a body, a plurality of adsorption nozzles extending downwards from the body, and a plurality of stop parts extending downwards from the body and located between the adsorption nozzles, and is characterized in that the position calibration device for the adsorption headof the mechanical arm comprises a base body with the same shape and size as an object to be adsorbed; the protruding parts are formed on the base body, and the protruding parts are at least providedwith outer side faces with the same number as the stopping parts on the adsorption head; the shape and the size of the protruding part are selected to enable the protruding part to be contained in a space defined by the multiple stopping parts, the inner side faces of the stopping parts are attached to the corresponding outer side faces of the protruding part, and the stopping parts make contact with the base body when the