"We are worried that the rigidity is not good, will it shake the knife?" I believe this is the problem that everyone who wants to buy CNC machine tools wants to know, no matter which brand is concerned, no matter which company. Seeing and hearing this question, Xiaobian is really happy for the people who ask this question, because you are very familiar with CNC machine tools. For the rigidity of water wheel rotary transfer machine, we will talk about it today.

Now in the machinery industry to do products, but it is really more and more difficult, tolerance requirements are more and more stringent, surface roughness requirements are also higher and higher, if the precision of the processed product is damaged, then the product is basically scrapped... Some vibrating knife, the average person only saw once, because the knife was destroyed once, in fact, in addition to the rigidity of the water wheel rotary transfer machine, there are other factors that also affect the lathe vibrating knife will not be produced.

1. The three elements harmonize with each other

The cooperation of fixture, tool and program determines the machining effect. For example, if an ultra-long tool is used, then our clamping must have better rigidity to make up for it, and the program must also be set accordingly for the long tool.

For example, when clamping, if the overhang length is too much, it will really spring up, so that we need a larger vice to support, the most important thing is to ensure that the workpiece is placed in the center.

2, preferentially choose short tools

In the case of meeting the processing requirements, the shorter the knife is installed, the better. But don't clip the blade.

3, more modern processing path

If the processing situation does not allow us to improve our tools, such as the use of long tools for deep cavity machining, it is necessary to use some modern tool paths.

Of course, you can also use some other countermeasures to suppress the vibration knife. According to the principle of seismic knife obtained by research, there are some specific and practical methods currently applied to the processing site:

(1) Reduce the working weight of the part that causes vibration, and the smaller the inertia, the better.

(2) Fixed or clamped for the place with the greatest vibration, such as the center frame, working retainer, etc.

(3) Improve the rigidity of the machining system, such as the use of a tool handle with a high elastic coefficient or the use of a special seismic force added to a Dynamic Damper to absorb the impact energy.

(4) Work hard from the blade and working rotation direction.

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