Machine for washing objects comprising: - a washing chamber in which to position a trolley carrying objects to be washed, which has at least a lateral wall with respect to a direction of insertion of the trolley into the washing chamber, said trolley being provided with a distributor circuit for distributing washing liquid toward the objects to be washed; - a feed circuit for feeding a washing liquid toward the washing chamber; - a device for the hydraulic and mechanical connection of the distributor circuit to the feed circuit which comprises a connection member installed on the distributor circuit, a corresponding delivery or coupling mouth installed on the feed circuit and mounted facing inside the washing chamber on said lateral wall, and at least a connection bushing configured for connection on one side to the connection member of the distributor circuit and on the other side to the corresponding delivery or coupling mouth of the feed circuit, so as to determine the mechanical and hydraulic connection between feed circuit and distributor circuit, characterized in that the device for the hydraulic and mechanical connection comprises: - at least an actuator unit which is configured to selectively command the stable positioning of said at least one connection bushing acting in a first drive direction (F, F', F", F"'), said actuator unit comprising a motorization member (34, 134) and an effector member (36, 136) that develops longitudinally along the lateral wall of the washing chamber; - a motion conversion mechanism (32, 132), operatively connected both to the effector member (36, 136) of the actuator unit and also to said at least one connection bushing, which is configured to convert the action of the actuator unit in the first direction (F, F', F", F"') into an alternate movement of said at least one connection bushing in a second drive direction (G, G'), from and toward the trolley, different from said first direction (F, F', F", F"'). - a washing chamber in which to position a trolley carrying objects to be washed, which has at least a lateral wall with respect to a direction of insertion of the trolley into the washing chamber, said trolley being provided with a distributor circuit for distributing washing liquid toward the objects to be washed; - a feed circuit for feeding a washing liquid toward the washing chamber; - a device for the hydraulic and mechanical connection of the distributor circuit to the feed circuit which comprises a connection member installed on the distributor circuit, a corresponding delivery or coupling mouth installed on the feed circuit and mounted facing inside the washing chamber on said lateral wall, and at least a connection bushing configured for connection on one side to the connection member of the distributor circuit and on the other side to the corresponding delivery or coupling mouth of the feed circuit, so as to determine the mechanical and hydraulic connection between feed circuit and distributor circuit, characterized in that the device for the hydraulic and mechanical connection comprises: - at least an actuator unit which is configured to selectively command the stable positioning of said at least one connection bushing acting in a first drive direction (F, F', F", F"'), said actuator unit comprising a motorization member (34, 134) and an effector member (36, 136) that develops longitudinally along the lateral wall of the washing chamber; - a motion conversion mechanism (32, 132), operatively connected both to the effector member (36, 136) of the actuator unit and also to said at least one connection bushing, which is configured to convert the action of the actuator unit in the first direction (F, F', F", F"') into an alternate movement of said at least one connection bushing in a second drive direction (G, G'), from and toward the trolley, different from said first direction (F, F', F", F"').