Centering marking device for assembling automobile steering wheel

The utility model relates to the technical field of automobile steering wheel assembling equipment, in particular to a centering marking device for assembling an automobile steering wheel. The centering marking device comprises a rotating assembly, a marking assembly and a supporting seat. And the supporting seat is arranged above the automobile chassis. The base of the rotating assembly is installed on the supporting base. And a through hole for mounting the rotating shaft is formed in the base. And the rotating shaft is perpendicular to the output shaft of the driving motor. An output shaft of the driving motor is connected with the rotating shaft through a transmission structure. And a connecting cavity used for implementing marking operation is formed in the rotating shaft. And the spline tooth sleeve is connected with the end part of the rotating shaft. A marking needle in the marking assembly is parallel to the axis of the rotating shaft and is arranged in the connecting cavity. The marking needle is co