Flexible production line containing heavy-load RGV

The utility model relates to a flexible production line containing a heavy-load RGV, which is characterized in that a buffer storage rack is arranged on one side of a double-line track of the heavy-load RGV, a plurality of processing machine tools are arranged on the other side of the double-line track, and a plurality of loading and unloading stations are arranged at the front end of the double-line track and on the same side of the processing machine tools; newly input workpieces or machined workpieces are arranged on the loading and unloading station, a plurality of workpieces machined through a plurality of processes are arranged on the buffer storage rack, a heavy-load RGV walks on the double-line track, and a pallet fork on the heavy-load RGV moves up and down or back and forth through a transmission device; an electric connection contact is arranged at the top of a rack body of the heavy-load RGV, a sliding contact cable is arranged at the top of the cache goods shelf, and the electric connection conta