CNC Knowledge: Talk about the vibration of the external round bed

Our current rounded vibration models include spiral and straight lines in the direction of extension (the operator often calls it horizontal lines), and there are random models.

The random pattern is generally that the sandwiches are not repaired or the spindle (it can be a sand wheel or that the room can be broken).

Let me declare that I am not creaking, and I don’t have much experience in this area.

Here, I just want to talk about a personal experience of “horizontal stripes”.

Correcting the crushing bed, you baidu, doctorate and master’s thesis must be a lot. There are relatively few spirals and random lines. I like to see if I have nothing to do, learn!

Finally knew it: the number of horizontal lines of the circular week = the speed of the speed of the part / source of forced vibration (probably that, not the formula, perhaps in turn). Then someone took the source of vibration (sandwheel) as the main research direction.

Well, I shared with the heroes a little thing that I experienced and learned from each other.

There is a xxx round grinding, the speed of the sandwicker is a speed and the xxxx rotation; The new tool-tool is very beautiful and sweetness and roundness can meet standards. However, the round of a spindle which is crushed, after the assembly, several round trips, the reason for horizontal vibration (commonly called dark motif) is obvious.

One day, there was an inspector of the devil, released a stone of rubber oil and took several times on the sleeve and was not qualified. Then the engineers also used the golden paper in the gold phase and the horizontal lines were obvious. What should I do if I want to export?

Okay, the grinding machine, ha, all the rotor to balance, the re -scraping guide rail, etc., it is still not possible, so I suspect that the tension and the electro frequency, huh, the Regular frequency of stabilization, like a result, there are still horizontal ribs.

Because the speed of the sandwheel is fixed, the number of ribs is really as written in paper, and the number is equal to what, everyone blames the ribs on the main axis of the sandwheel. The transformation is transformed and cannot be overcome. The investigation, the most expensive crushing bed was rough.

Until one day, an emerging maintenance worker accidentally struck the belt (cast iron) of the header of the part during the interview, so he had to make a new one. Hehe, this crushing bed has become the main strength of the factory!

For what? After n years, I was still perplexed. Until the appearance of a CNC grinding machine, and it is raised, I think I probably understand.

A guy scrambles a room, calculates on the main axis of the sand wheel and between 1,800 rpm. Fire, creak slowly, 30 rpm! Hehe, what a forum to see, this is the case. He reprimanded the Swiss CNC grinding machine! Hehe.

After having thought of it, I understand, the ratio of the speed of the wheel and the speed of the part cannot even be! It is preferable to be endless after the decimal point, as 0.333333333333, 0.676776767676. It is impossible to learn mechanical machines, but unfortunately, I still don’t know. Think of so ashamed this year!

I think this guy can adjust the speed of the room to a 9X rotation, maybe overcome it. I think the XXX grinding machine can fight with the coincidence of the wheel and the speed of the wheel.

You should know that there are no high requirements of the designer for the triangle with wheels, and no preparation worker checks the speed of sand wheels and header when they leave the factory. There may not be one of the manufacturers who may not meet one of the thousands of units.