Novel gear grinding device

A gear clamping and fixing structure comprises a lower side support fixedly assembled in the middle of the right wall of an inner cavity of a shell, an upper side support is fixedly assembled at the upper end of the right side of the inner cavity of the shell, and a gear fixing device convenient to disassemble is fixedly assembled on the upper surface of the lower side support. A mounting plate is fixedly assembled on the bottom face of the upper side support, a hydraulic rod is rotationally assembled on the bottom face of the mounting plate through a bearing, a pressing plate is fixedly assembled at the lower end of the hydraulic rod, and pressing blocks are fixedly assembled on the left side and the right side of the bottom face of the pressing plate. The gear fixing device convenient to disassemble fixes a gear, a hydraulic rod is used for being matched with a pressing block to extrude and clamp the gear, the position of the gear is limited, a gear motor drives a circular ring to drive the gear to rotate,