| 摘要 |
A plant including: an assembly line along which a plurality of pallets are circulated in a closed loop, divided into a first section, where the pallets are loaded in a plurality of first stations with mechanical parts to be assembled, and into a second section, where the pallets advance along a plurality of second stations; a conveyor arranged at least partially parallel to and above the second section, along which a plurality of balance supports provided with bodies run; a coupling station, arranged immediately upstream of the second section, where the pallets are integrally coupled to the balance supports; and a decoupling station, where the pallets are separated from the balance supports; each pallet having selectively engageable and releasable fastening means for a balance support and elastic means able to receive the balance support resting thereon. |
| 主权项 |
1. A plant for assembling mechanical parts on vehicle bodies, of the type comprising an assembly line along which a plurality of pallets are circulated in a closed loop, the assembly line being divided into a first section and a second section comprising a plurality of first stations and of second stations, respectively, the pallets sequentially advancing in a first predetermined direction along the first section where, in the first stations, they are progressively loaded with a predetermined group of mechanical parts to be assembled, arranged on each pallet according to a defined layout, and the pallets then sequentially advancing along the second section, in a second direction, opposite to the first, where, in the second stations, the predetermined group of mechanical parts carried by each pallet is progressively assembled in sequence on a respective vehicle body; the plant further comprising:
i) a conveyor arranged at least partially parallel to the second section and above the second stations, a plurality of balance supports running along the conveyor, each fixedly provided with one of said bodies; ii) a coupling station, arranged immediately upstream of the second section, with reference to a pallet movement direction along the second section, and iii) a decoupling station, arranged immediately downstream of the second section, with reference to the pallet movement direction along the second section; wherein: a) each pallet is provided with its own fastening means, which can be selectively engaged and released in order to fixedly secure a balance support thereto; b) each pallet is provided with elastic means able to receive a balance support resting thereon in order to remain compressed between the balance support and the pallet so that the balance support is supported by the pallet and the weight of the balance support no longer rests on the conveyor; c) said coupling station is provided with means for fixedly coupling each pallet to a balance support consisting of first means of the coupling station for carrying out a relative vertical movement between a pallet and a respective balance support that is positioned on said coupling station to compress said elastic means and second means of the coupling station for selectively actuating the engagement of the fastening means of each pallet while the elastic means are compressed; d) said decoupling station is provided with means for separating the pallets from the balance supports when the fastening means are engaged, consisting of third means of the decoupling station for carrying out a relative vertical movement between a pallet and a respective balance support that is positioned on said decoupling station to further compress said elastic means and fourth means of the decoupling station for selectively actuating the release of the fastening means of each pallet while the elastic means are further compressed. |
