Horizontal stacking press-fitting machine for fuel cell stacks

The invention discloses a horizontal stacking press-fitting machine for fuel cell stacks. The press-fitting machine comprises a machine frame, a press-fitting device and a rotating device. The left end and the right end of the press-fitting device are rotatably installed at the left end and the right end of the machine frame, and the right end of the machine frame inclines upwards relative to theleft end of the machine frame; the press-fitting device comprises a clamp, a pressing plate and a driving mechanism, the left end of the clamp is fixedly arranged at the left end of the machine frame,the right end of the clamp is obliquely arranged upwards, the pressing plate is arranged at the right end of the machine frame, and the driving mechanism is in transmission connection with the pressing plate so as to drive the pressing plate to be close to or away from the stack on the clamp; a gas injection hole penetrating through the pressing plate is formed in the pressing plate, the gas injection hole corresponds to