How to deal with the vibration of the grinding machine?

When doing precision mold grinding, the most troublesome thing is the vibration of the grinding machine. Because the vibration of the machine tool directly affects the effect of the mold processing, such as ripples, surface finish, if it is precision molding grinding, making plug-in connector molds, cutting grooves, etc., the machine vibration can not repair the grinding wheel at all, because Sometimes the grinding wheel is required to be trimmed to a thickness of 0.1-0.13mm. The grinding wheel is almost transparent. If the grinding machine is slightly unstable, the grinding wheel will explode. So how do we deal with the vibration of the surface grinder?

First, first check the horizon, often said that the building is stable and depends on the foundation? The same is true for the machine tool. If the level of the anchor screw is not adjusted, it will cause the machine to resonate. Because sometimes the ground level of the processing site is not very good, so to adjust the horizontal screw to make the machine reach an uneven height, first we need to check whether each screw of the foot is put into place in the floor mat. Before and after the level is used, the left and right sides are horizontal, OK lock the screws.

Second, if the above actions are carried out, the vibration is still not eliminated. We should check whether the ground floor is empty or not. If the ground is terrazzo or paved, the floor block is relatively strong. If it is cement level, the ground is very empty. Resonance, how to deal with this situation? Don't worry, go to the rubber hardware store to buy a few black rubber pads, the thickness is about 6-10 mm, the size is 10 cm and the size of the floor mat is slightly larger. Loosen the anchor screw and put the rubber rubber pad on the horizontal foot. Under the pad, you can play a large shock absorption function.

Third, if the above action is taken and the vibration is still not eliminated, we must check the problem of the grinder and the fixed flange of the grinding wheel. The first is the grinding wheel. Because the quality of the grinding wheel on the market is uneven, there are two factors that affect the vibration of the grinding wheel: one is that the particle size of the grinding wheel is not uniform, the center of gravity is unstable and the vibration is unstable; the second is that the inner hole is not standard and large. For example, our grinding machine flange hole diameter is 31.75, and if the grinding wheel is 32, it will cause vibration when it is loaded up and down. Therefore, we must ask the specifications when purchasing the grinding wheel. I suggest that you buy a little bit, one is worse. The grinding wheel affects the processing effect; secondly, it is dangerous to crack and explode during the grinding process; the poor balance of the grinding wheel in the third place will seriously affect the life of the grinding machine spindle. Then the grinding wheel fixed flange, lift the flange, everyone will think of the balance of efficiency, in fact, the flange of the small precision hand grinder is not to be balanced, the premise is that you must use the imported precision flange, the general new flange Buy it back, there are three small balance blocks on it, you take it off, the flange is directly mounted on the grinding wheel, and then the knife is repaired. The grinding wheel is naturally balanced. Buy more flanges and install different sizes of grinding wheels. Save time and save efficiency when you use it next time. Going back to the original question, if there is vibration, it may be the above reason. Try another wheel, or if the flange is not balanced, then load the balance block. Then remove the balance block and install it. If not, change the new flange. Try, the general problem will be solved.

The fourth is the processing environment. It is impossible to place a machine tool with a large vibration such as a punching machine or a lathe near the same working site. It is easy to cause resonance. How to judge it is very simple. You only need to stop the grinding machine and start the punching machine. The lathe, if the hand touches the grinding machine, it has the effect of vibration or numbness. The treatment method is to separate the workshop.

Fifth, if the above series of actions still fail to eliminate the vibration, it may not be the scope that you can handle. It may be that the spindle of the grinding machine has a long time to vibrate itself, the inner bearing or the motor is broken, or it may be the structure of the machine tool. If there is a problem with the assembly, it is necessary to notify the manufacturer to deal with it.