Diffraction grating manufacturing device

The utility model discloses a diffraction grating manufacturing device which comprises a base, a reflection assembly arranged on the top of the base, a fixing assembly arranged on the top of the base, a sliding groove formed in the top of the base, a sliding wheel connected to the interior of the sliding groove in a sliding mode, a fixing rod arranged on the top of the sliding wheel, and a supporting rod arranged on the top of the fixing rod. The frame is hinged to the top of the supporting rod, the fixing bolt is sequentially connected to the top end of the supporting rod and the bottom end of the frame in a threaded mode, and the fixing nut is connected to one end of the fixing bolt in a threaded mode. According to the diffraction grating photoetching device, light rays can perform multi-angle photoetching on the surface of the diffraction grating, the diffraction grating can be fixed through the fixing assembly, various diffraction gratings smaller than 20 cm can be fixed, the diffraction grating can be pr