Pneumatic clamp for engine cylinder cover, clamping device and clamping system

The utility model relates to the technical field of clamping devices, in particular to an engine cylinder cover pneumatic clamp, a clamping device and a clamping system. The pneumatic clamp for the engine cylinder cover comprises a main body structure which is provided with a fixing hole and a wiring hole; the connecting structure is arranged on one side of the main body structure and is fixedly connected with the main body structure; the pneumatic structure is arranged on the connecting structure, a clamping jaw is arranged on the pneumatic structure, and the end, away from the pneumatic structure, of the clamping jaw is a free end; the fixing pin and the pneumatic structure are arranged on the connecting structure in parallel, and the fixing pin is fixed; and the contact switch is arranged between the pneumatic structure and the fixing pin. The pneumatic clamp for the engine cylinder cover is completely connected with the cylinder cover, and only one part of one end face of the cylinder cover needs to be oc