Angle measuring device for right-angle prism processing

The utility model discloses an angle measuring device for right-angle prism processing, which relates to right-angle prism processing and comprises a bottom plate, a right-angle reflecting plate and a straight plate are arranged on the bottom plate, and a laser transmitter and a detection cylinder which are symmetrically distributed are arranged on one side, close to the right-angle reflecting plate, of the straight plate. A clamping device for clamping the rectangular prism is further arranged on the bottom plate and comprises a sliding groove formed in the bottom plate, a clamping rod assembly which is arranged in the sliding groove in a sliding manner and can be in contact with the rectangular prism, and a transmission device arranged on the bottom surface of the bottom plate; the transmission device comprises a lead screw rotationally arranged on the bottom face of the bottom plate and a sliding block arranged on the lead screw in a sleeving mode, the lead screw is rotated to drive the sliding block to mo