90-degree turning-over and transferring mechanism

The utility model relates to the technical field of an assembly line of products, in particular to a 90-degree turning-over and transferring mechanism. The 90-degree turning-over and transferring mechanism comprises a tray assembly, an air cylinder and a rotary shaft, wherein the air cylinder is in driving connection with the rotary shaft which is connected with the tray assembly. The tray assembly comprises a turntable, a gear motor, a driving wheel, a tensioning wheel and a riding wheel assembly, wherein the gear motor is installed on the turntable, the gear motor is in driving connection with the driving wheel, a chain is arranged between the driving wheel and the tensioning wheel, and the riding wheel assembly is installed on the chain. The 90-degree turning-over and transferring mechanism can be used for 90-degree turning off of the assembly line, and production requirements for the assembly line are met.