Rotation driving device and rotation driving mechanism thereof

The utility model relates to a rotation driving device and an autorotation driving mechanism thereof. The rotation driving mechanism comprises a base; the adsorption assembly comprises a vacuum suction nozzle and a first sealing piece, the vacuum suction nozzle is connected to the base in a matched mode and provided with an adsorption face, and the first sealing piece is connected to the vacuum suction nozzle in a matched mode and arranged in the circumferential direction of the adsorption face; the driving part is connected to the base in a matched mode and is in transmission connection with the vacuum suction nozzle, and the driving part is configured to be used for driving the vacuum suction nozzle to rotate around the rotating shaft of the vacuum suction nozzle relative to the base. According to the rotation driving device and the autorotation driving mechanism thereof, the adsorption stability can be improved. 本申请涉及一种旋转驱动装置及其自转驱动机构。自转驱动机构包括：底座；吸附组件，包括真空吸嘴及第一密封件，真空吸嘴配接于底座，且具有吸附面，第一密封件配接于真空吸嘴，并围绕吸附面的周向设置；以