Opening and closing device, furnace door and mounting and debugging method for opening and closing device

The invention belongs to the technical field of photovoltaics, and discloses an opening and closing device, a furnace door and a mounting and debugging method for the opening and closing device. The opening and closing device comprises a mounting frame, a first driving assembly and a second driving assembly. The mounting frame can slide in the first direction, the mounting frame comprises two oppositely-arranged mounting racks, each mounting rack is slidably connected with a connecting piece in the second direction, the connecting pieces are used for being fixedly connected with the furnace door, the first direction is the direction close to or away from the furnace body, and the second direction is perpendicular to the first direction; the first driving assembly is connected with the mounting frame to drive the mounting frame to slide in the first direction; the second driving assembly is arranged on the mounting frame and connected with the connecting piece so as to drive the connecting piece to slide in th