1.Side grinding problem: in the daily use of the grinder, we can often find that some operators use the side of the grinding wheel for grinding at will, regardless of the type of grinder and the type of grinding wheel, which is a serious violation of the safety operation regulations. The grinding wheel with the circumferential surface as the working surface according to the regulations is not suitable for side grinding. This kind of grinding wheel The radial strength is large and the axial strength is very small. When the operator forces too much, the grinding wheel will be broken and even hurt people. This behavior should be prohibited in the actual use process. 

2.Front operation problem: in daily use, many operators are used to operating directly against the grinding wheel because they can work hard in this direction. In fact, this behavior should be particularly prohibited in the operation of the grinder. According to the operating procedures, when grinding workpieces with the grinder, the operator should stand on the side of the grinding wheel and shall not operate in the front of the grinding wheel, so as to avoid the grinding wheel In case of failure, the grinding wheel flies out or the grinding wheel is broken and flies out to hurt people.

3. Problem of forced operation: when using the grinder, some operators, especially young operators, exert too much force for fast grinding speed, which is an extremely unsafe operation behavior. The flat body of any grinding wheel has a certain strength, which is likely to cause crushing of the grinding wheel or even flying out to hurt people, which is also a prohibited behavior. 

4.Joint operation problem: in the actual daily operation, such a situation also occurs. Some people rush production tasks and rush working hours, and two people share a grinder to operate at the same time, which is a serious illegal operation and should be strictly prohibited. When one grinder is not enough, the method of adding a grinder can be used to solve it, and it is not allowed to share a grinding wheel at the same time Machine.