| 摘要 |
An assembly line for motor vehicles in which a overhead guide supports a plurality of conveying units, each of which has a longitudinal axis, is provided with a supporting element for a respective body to be assembled, and is mobile in a given direction of advance through one or more rotation stations, in each of which an drive assembly, carried by the rotation station, is designed to engage a driven transmission assembly, carried by the conveying unit, for rotating the supporting element about the longitudinal axis. |
| 主权项 |
1. A motor-vehicle assembly line (1) comprising:
an overhead guide (3); a plurality of conveying units (5) each comprising an overhead slide (6) slidably coupled to the overhead guide (3), and supporting means (8, 9) coupled to the overhead slide (6) to support a respective motor-vehicle body (2) to be assembled, each conveying unit (5) being displaceable in a direction of advance (4) through one or more rotation stations (17) where the respective supporting means (8, 9) are mounted for rotation about a longitudinal axis (16) parallel to the direction of advance (4); and rotation means (18) operable to rotate the supporting means (8, 9) of each conveying unit (5) about the respective longitudinal axis (16) at each rotation station (17); the rotation means (18) comprising: for each conveying unit (5), an overhead driven transmission assembly (19) comprising a torque intake (42) arranged to receive a torque from a direction transverse to the direction of advance (4) and coupled to the supporting means (8, 9) to responsively rotate the supporting means (8, 9) about the longitudinal axis (16); and for each rotation station (17), an overhead torque supply (20) comprising a torque takeoff (29) configured to engage the torque intake (42) of a said driven transmission assembly (19) carried by a said conveying unit (5) in the rotation station (17) to responsively rotate the supporting means (8, 9) about the longitudinal axis (16); wherein the torque intake (42) of each driven transmission assembly (19) comprises an input shaft (42) arranged transverse to the direction of advance (4) to receive a torque from said torque takeoff (29), and an output shaft (39) arranged parallel to the direction of advance (4) and coupled to the input shaft (42) to receive a torque therefrom; fast coupling means (31, 45) being provided between the torque takeoff (29) and the torque intake (42) to allow fast coupling therebetween; and the output shaft (39) being coupled to the supporting means (8, 9) of the respective conveying unit (5) to responsively rotate the supporting means (8, 9) about the respective longitudinal axis (16); wherein each conveying unit (5) further comprises a frame (14) hanging from the slide (6) and defining an inner channel coaxial to said longitudinal axis (16), said supporting means (8, 9) comprising an arched element (8) coaxial to said longitudinal axis (16) and slidably mounted within said channel. |
