In order to achieve the best grinding performance of the grinding wheel, what are the precautions during use?
Grinding wheel speed
The maximum working line speed is specified on the label of the grinding wheel, and it must be confirmed whether the spindle speed of the machine tool is within the line speed range of the grinding wheel before use. Sometimes only check the motor speed of the machine tool is not enough, but also calculate the speed ratio of the belt disc.
Some machine tools are graded speed regulation, operators need to pay attention not to mistakenly adjust the speed to a higher speed than the grinding wheel line speed.
Normativity of operation
Operators sometimes do not follow the process requirements. For example, the amount of feed is 2 wires each time, and some operators in order to catch up with production, so that the amount of feed reaches 5 wires each time. This grinding wheel is difficult to work normally, the workpiece is easy to cause burns, and some burn surfaces do not show blue burn marks, but in fact the hardness of the workpiece has been low, which has a great impact on the quality of the workpiece.
Diamond trimmer
The normal line of the diamond pen and the grinding wheel should have an Angle of 15°, and the diamond pen can rotate several faces to keep sharp for a long time. If the diamond pen is dull and not checked and replaced, and the grinding wheel is still being trimmed, it can be imagined that the grinding quality is not good.
Maintenance of grinding machine
In accordance with the safety maintenance requirements, the machine needs to be repaired regularly. If in order to save costs, the regular maintenance work is not paid attention to, so that the machine is in poor condition, such as the spindle accuracy decline or excessive bearing wear, it will cause a very adverse impact on grinding.
The instability of the workpiece
It is mainly manifested in the instability of the size allowance and the fluctuation of the hardness of heat treatment.
Is the cooling system reliable
Sometimes users will reflect that there are scratches on the surface of the workpiece, in addition to the abrasive particle size is not pure, the filtration of the cooling system is a key. If the filtration is not good, the metal chips will be recycled to the grinding area, causing the surface of the workpiece scratch. In addition, whether the flow rate of coolant is sufficient is also a factor that directly affects the grinding effect.
In addition, the storage, handling and installation of grinding wheels should also be noted:
The storage of grinding wheels should pay attention to ventilation and moisture resistance, especially resin grinding wheels and rubber grinding wheels, but also pay attention to the problem of aging. Generally, the storage cycle of resin grinding wheel and rubber grinding wheel can not exceed 2 years.
In the handling, we sometimes see workers roll large grinding wheels on the ground, so that they will accidentally hit other objects, resulting in the lack of corners of the grinding wheel. It is very dangerous to run the grinding wheel at high speed under the condition of missing corners. So try to avoid irregular handling.
The installation process should also be careful to put gently, and the tightening sequence of nuts when tightening the flange should be diagonal, from loose to tight.
