In the grinding process, it is often encountered to machine the end faces or shoulder blades with a cylindrical grinding machine. However, in operation, some of the grinding wheels are formed into the form of Fig. 1 or Fig. 2, so that not only the workload is large, but also the safety is not high, and the utilization rate of the grinding wheel is low. If the amount of feed is large, the form of Figure 1 can easily cause burns to the workpiece. The correct way is shown in Figure 3. First flatten the side of the grinding wheel, then move the grinding wheel head to the angle α, so