Auxiliary device for processing inclined plane of optical crystal block

The utility model discloses an auxiliary device for processing an inclined plane of an optical crystal block, which comprises a crystal placing groove, the crystal placing groove is of a U-shaped groove body structure, and a U-shaped opening faces upwards; the lower ends of the two backup plates are connected with an angle adjusting mechanism, so that the inclination angles of the backup plates can be adjusted through the angle adjusting mechanism; the inclination angles of the two backup plates are the same, so that the two backup plates are parallel and the crystal placing groove is always horizontally placed; the upper ends of the two backup plates are higher than the bottom of the crystal containing groove, one backup plate is used for allowing a crystal block to be machined and placed in the crystal containing groove with an upward slope to be machined to abut against, and the upward slope to be machined of the crystal block is made to be horizontal by adjusting the inclination angle of the backup plate.