Dust collection device of single crystal diamond grinding equipment

The utility model discloses a dust collection device of single crystal diamond grinding equipment, and relates to the technical field of diamond grinding equipment. The dust collection device comprises a workbench, the workbench is connected with an annular dust collection pipe, the cross section of the annular dust collection pipe is of a rectangular structure, and an annular dust collection opening is formed in the inner wall of the annular dust collection pipe; the upper surface of the workbench is connected with a dustproof cover plate. The dustproof cover plate covers the upper surface of the annular dust suction pipe; a plurality of grinding notches are formed in the dustproof cover plate; wherein the dustproof cover plate is formed by splicing a plurality of sector plates; the fan-shaped plate is in sliding connection with the workbench, and the sliding direction is the central angle bisector direction of the fan-shaped plate; notches are formed in the side surfaces of any two adjacent fan-shaped plate