A autonomous cleaning robot comprising: - a main body including a lower face which is configured to be oriented towards a surface to be cleaned, - a wet cleaning device mounted movable in translation relative to the main body in a translational direction, which is substantially vertical when the autonomous cleaning robot rests on a horizontal surface, and between an active position in which the wet cleaning device is configured to be in contact with the surface to be cleaned and an inactive position in which the wet cleaning device is configured to be located at a distance from the surface to be cleaned, and - a translational drive mechanism configured to displace the wet cleaning device in translation in the translational direction and between the active position and the inactive position, characterized in that the translational drive mechanism includes: - a plurality of drive studs which are spaced apart from each other, each drive stud extending along a respective extension axis which is substantially parallel to the translational direction and being mounted movable in rotation relative to the main body about its axis of extension, each drive stud including a threaded drive portion configured to cooperate with a respective complementary threaded drive portion provided on the wet cleaning device, and - a motion transmission mechanism which is mechanically coupled to the drive studs, the motion transmission mechanism being configured to drive the drive studs in rotation simultaneously in a first direction of rotation so as to move the wet cleaning device towards the active position, and being configured to drive the drive studs in rotation simultaneously in a second direction of rotation, opposite to the first direction of rotation, so as to move the wet cleaning device towards the inactive position. - a main body including a lower face which is configured to be oriented towards a surface to be cleaned, - a wet cleaning device mounted movable in translation relative to the main body in a translational direction, which is substantially vertical when the autonomous cleaning robot rests on a horizontal surface, and between an active position in which the wet cleaning device is configured to be in contact with the surface to be cleaned and an inactive position in which the wet cleaning device is configured to be located at a distance from the surface to be cleaned, and - a translational drive mechanism configured to displace the wet cleaning device in translation in the translational direction and between the active position and the inactive position, - a plurality of drive studs which are spaced apart from each other, each drive stud extending along a respective extension axis which is substantially parallel to the translational direction and being mounted movable in rotation relative to the main body about its axis of extension, each drive stud including a threaded drive portion configured to cooperate with a respective complementary threaded drive portion provided on the wet cleaning device, and - a motion transmission mechanism which is mechanically coupled to the drive studs, the motion transmission mechanism being configured to drive the drive studs in rotation simultaneously in a first direction of rotation so as to move the wet cleaning device towards the active position, and being configured to drive the drive studs in rotation simultaneously in a second direction of rotation, opposite to the first direction of rotation, so as to move the wet cleaning device towards the inactive position.