Cutter passivation equipment and passivation machining method thereof

The invention relates to the technical field of passivating treatment, and particularly discloses cutter passivating equipment which comprises a supporting frame, a base, a base driving component, a passivating disc, a passivating disc driving component and a passivating brush driving component. The base is installed on the supporting frame in a sliding mode. The base driving part is arranged on the supporting frame and used for driving the base to move back and forth along the supporting frame. The plurality of passivation discs are respectively arranged on the base and are used for mounting cutters; the passivation disc driving part is connected with the passivation disc so as to drive the passivation disc to rotate; the passivation brush is arranged above the passivation disc; and the passivation brush driving part is connected with the passivation brush to drive the passivation brush to rotate. According to the cutter passivation equipment, it can be guaranteed that each cutter tip of the cutter is in a d