X-ray photography camera obscura capable of synchronously changing volume on multiple surfaces

The utility model discloses an X-ray photography camera obscura capable of changing volume synchronously in a multi-face mode, which comprises a bottom plate and a top plate, four movable side plate assemblies are evenly distributed on the bottom plate around the center of the bottom plate, and a synchronous driving mechanism used for driving the four movable side plate assemblies to be opened or closed synchronously is arranged on the bottom plate. The camera obscura has the following advantages that the distances among the four side baffles in the camera obscura can be freely adjusted, the internal volume of the camera obscura can be controlled, the volume of the camera obscura can be changed according to the sizes of parts, the camera obscura can accommodate the internal parts when the internal parts are large, and when the volume is small, the camera obscura can be conveniently taken out of the camera obscura. And the device is space-saving, flexible to use, free in volume change, simple in structure and