Exposure machine convenient to overhaul

The utility model discloses an exposure machine convenient to overhaul, which comprises an exposure machine main body, the front side and the rear side of the exposure machine main body are respectively provided with an access hole, each access hole is provided with an access door hinged with the access hole, one side of each access hole is provided with a locking clamping groove, a cavity is arranged inside each access door, and the access door is provided with an opening. A locking mechanism matched with the locking clamping groove is arranged in the cavity; the exposure machine has the beneficial effects that the access hole of the exposure machine adopts a large opening, only one access door needs to be opened during maintenance, multiple access doors do not need to be opened, the maintenance efficiency is greatly improved, after the access door is opened, the unfolded short sliding supporting rod can slide to the other side, the unfolded long sliding supporting rod can slide to one side, and the maintena