Grinding is widely used and is one of the main methods […]
Grinding is widely used and is one of the main methods for precision machining of machine parts. However, due to the high speed of the grinding wheel of the grinder machine, the grinding wheel is relatively hard, brittle, and can not withstand heavy impacts. Occasionally improper operation can cause very serious consequences. Therefore, the safety technical work of the grinding process is particularly important. Reliable safety protection devices must be adopted, and the operation must be concentrated to ensure that it is foolproof. In addition, the fine sand and metal shavings splashed from the workpiece of the grinding wheel during grinding can hurt the eyes of workers. If workers inhale a large amount of this dust, it is harmful to the body, and appropriate protective measures should be taken. The following safety technical issues should be paid attention to when grinding.
The machine tool should be thoroughly inspected carefully before driving, including the inspection of the operating mechanism, electrical equipment, and magnetic chuck. After inspection, lubricate and test run after lubrication to confirm that everything is good before use. Pay attention to the clamping and clamping when loading the workpiece. The loosening of the workpiece during the grinding process will cause the workpiece to fly out and injure people or break the grinding wheel. When starting to work, use the manual adjustment method to make the grinding wheel slower and approach the workpiece, the starting feed should be small, and no excessive force is allowed to prevent collision with the grinding wheel. When it is necessary to control the reciprocating movement of the worktable with the stopper, it must be accurately adjusted according to the grinding length of the workpiece to tighten the stopper. When replacing the grinding wheel, you must first perform a visual inspection to see if there is any trauma, and then hit with a wooden hammer or wooden stick. The sound is required to be clear and without cracks. When installing the grinding wheel, it must be assembled according to the specified methods and requirements. After the static balance debugging, the installation, test run, and everything is normal. Workers should wear protective glasses during work, and dress the grinding wheel in a balanced manner to prevent impact. Measure the workpiece, adjust or wipe the machine tool after stopping. When using a magnetic chuck, clean, close and hold the disk surface and workpiece, and if necessary, add a stopper to prevent the workpiece from shifting or flying out. Be careful to install the wheel guard or machine tool baffle, and stand by the front of the high-speed rotating wheel.