The harm caused by the imbalance of grinding wheels is mainly manifested in two aspects. On the one hand, when the grinding wheel rotates at high speed, it causes vibration, which is easy to cause polygonal vibration marks on the surface of the workpiece; On the other hand, unbalance accelerates the vibration of the spindle and the wear of the bearing, which will cause the grinding wheel to break and even cause an accident.
Solution: For sand office buildings with a size greater than or equal to 200mm, static balance should be carried out after chuck installation, and static balance should be repeated after grinding wheel shaping or imbalance is found during work.
Extended data
The selected grinding wheel must be able to withstand the cycle speed of more than 2000m/min. It is forbidden to use damaged grinding wheels. The flange of the new grinding wheel must be balanced. Before formal grinding, the grinding wheel needs to idle for 5 minutes. The maximum feed stroke of the grinder below 800 mm is 0.03 mm, and the maximum feed stroke of the grinder above 800 mm is 0.05 mm.
In order to realize the high rigidity and high precision rotary motion of the grinding wheel frame, a grinding wheel hydrostatic spindle system with wide speed range, high rigidity and high precision was developed. The grinding wheel shaft is supported by hydrostatic bearing, Siemens has built-in spindle motor, and the spindle motor is forced to cool by coolant. The grinding wheel spindle is equipped with a grinding wheel balancing device, and the matching management control program can continuously monitor the grinding wheel in the cycle and compensate the possible imbalance immediately.
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