Fixing device of grinding machine

The utility model relates to a fixing device of a grinding machine, which comprises a grinding machine body, a grinding platform is formed on the grinding machine body, a moving component is arranged on the grinding platform, and a clamping component is assembled on the moving component. According to the fixing device of the grinding machine, through movement cooperation between the moving assembly and the clamping assembly, the workpiece has high positioning precision and repeatability during grinding, linear movement of the workpiece on the clamping assembly can be accurately controlled, and therefore the accuracy of the relative position and angle between a grinding head on the grinding machine body and the workpiece can be ensured; compared with traditional handheld grinding, through cooperation of the moving assembly and the clamping assembly, the workpiece can be clamped and fixed, then the workpiece is stably ground, the workpiece is prevented from deviating and shaking during grinding, and the grindin