Grinding machine is a machine tool that uses grinding tools to grind the surface of workpiece. Grinding machines have a wide range of applications. They can not only carry out high-precision and high-power grinding, but also carry out grinding with small surface roughness, and are suitable for processing a variety of hard and brittle data. Therefore, they are widely expected in industrial application. Here are some safety protection common sense of grinding machine to introduce to us, hoping to provide some suggestions to brothers in need of assistance. Grinding is widely used and is one of the primary methods of fine machining of machine parts. However, due to the high speed of the grinding wheel of the grinder, the grinding wheel is relatively hard, brittle and can not withstand heavy impact. Occasionally, due to improper operation, breaking the grinding wheel will result in very severe results. Therefore, the safe technical operation of grinding is particularly important. It is necessary to adopt reliable safety protection equipment, and the operation should concentrate energy to ensure full confidence. In addition, the fine sand and metal chips splashed on the workpiece of the grinding wheel during grinding will damage the workers' eyes. If workers inhale a large amount of this dust, it will be harmful to their health, and appropriate protective measures should also be taken. The following safety technical problems should be paid attention to during grinding. Before start-up, carefully check all the machine tools, including the operation organization, electrical equipment, magnetic suction cups and other fixtures. After inspection, it shall be smoothed and then tested. It can be used only after all excellence is recognized. Pay attention to correct and tight clamping when clamping the workpiece. The loosening of the workpiece in the grinding process will cause severe results such as the workpiece flying out to hurt people or crashing the grinding wheel. At the beginning of the operation, the manual adjustment method shall be used to make the grinding wheel slowly close to the workpiece. The initial feed rate shall be small. Excessive force is not allowed to avoid bumping the grinding wheel. When it is required to control the reciprocating motion of the worktable with a retaining iron, it shall be accurately adjusted according to the grinding length of the workpiece, and the retaining iron shall be tightened. When replacing the grinding wheel, it is necessary to check the appearance first to see if there is any trauma, and then knock it with a wooden hammer or mallet. The sound needs to be loud and there is no crack. When installing the grinding wheel, it is necessary to install the grinding wheel according to the regular methods and requirements. After the static balance commissioning, the device and test run can be used only after all are normal. Workers shall wear protective glasses during operation and trim the grinding wheel in a balanced manner to avoid collision. Measure the workpiece, adjust or scrub the machine tool after shutdown. When using magnetic suction cups, the disk surface and workpieces shall be wiped clean, close and firmly absorbed. If necessary, block iron can be added to avoid workpiece displacement or flying out. Pay attention to install the protective cover of the grinding wheel or the baffle of the machine tool, and the station side shall be over the front of the high-speed rotating grinding wheel. The variety of products processed by the machining profession is complex, the size and size of workpieces are different, and the processing accuracy is different. The relative demand grinding wheel speed is different from the speed of the main axis. It is difficult to adjust the linear speed to the desired state simply by adjusting the spindle speed to meet the workpiece processing. Because of the awesome stress and tortuous process of the shaft, the grinding wheel will have different feed torque, which will cause the wheel speed and torque to change differently. The chatter pattern / burn pattern will also happen. The grinding accuracy is difficult to ensure, resulting in low power output and low quality.