The construction of the wheat mobile phone factory is about to be completed, and now it is waiting for the assembly line purchased by Germany and some equipment designed by the Rongcheng Electronics Research Institute to produce mobile phone chips to be installed in place.

According to information from Camaert Ren Zhiguo, the German equipment has been loaded on the ship, and it will be able to reach China's customs in more than 10 days at most.

As long as those equipment get off the ship, the four transport planes of Jiuyi Airlines will directly fly these equipment from Huadu Customs to Rongcheng, these equipment, Yun Fei is worried that the car transportation is too bumpy, will cause some damage to those German equipment.

You should know that this is second-hand equipment, and the German side does not provide drawings.

Because of this, the price is only 7 million US dollars, and if it is a new equipment, it will be at least more than 10 million. Of course, the price of more than 10 million will not necessarily be sold.

Germany is not so stupid, and China's imitation ability is even more powerful than Japan's.

Especially for the production of some simple electronic equipment, with China's machinery manufacturing strength, as long as there are drawings, it can definitely be imitated in a short time, even if the raw materials or processing accuracy is not up to par, with China's manufacturing cost, even if it is replaced once a year, it will not be too much of a loss.

Now the matter of the mobile phone factory is waiting for the installation of equipment after the construction of the plant, and then waiting for the North Korean college students assembly line workers to enter China, Yun Fei began to put all his energy on the preparation for the construction of the vocational and technical school of Jiuyi Heavy Industry and the acquisition of Rongcheng Tool Factory.

Through the persecution of the base of the Ninth Academy, Zhao Xingbang had no choice but to relocate the secondary school built in the mountains to train the children of workers to Rongcheng, and at the same time the school began to apply to the Ministry of Education for college qualifications.

For the relocation of the Nine Courtyard School, most of the money was paid by Jiuyi Heavy Industry, for this reason, Yun Fei took out more than 8 million funds, which is that Jiuyi Heavy Industry has complete autonomy over the teaching arrangements of the School of Mechanical and Electrical Engineering and the right to assign the graduation of those students.

Two new machinery factories built by the Ninth Institute in the Rongcheng Economic Development Zone. One was named Jiuding Machinery, and the other was named Shenkun Technology. Just for the name of these two factories, the Ninth Academy Base and the Aerospace Base almost got together.

When Zhao Xingbang asked Yun Fei for the names of the two new machinery factories, Yun Fei mischievously copied the names of the enterprises that were later restructured in aerospace. Later, these two companies actually did not have too good benefits, Jiuding was just a workshop of only two or three hundred people in the aerospace base that produced automobile shock absorbers; Shenkun is also a civilian workshop developed, the production of mainly some mining machinery spare parts.

Yun Fei did not expect that these workshops in the space base have not yet been completely relocated, and they have begun to prepare for restructuring.

It's so good that they don't die, and these two workshops of theirs are also going to be called by this name.

If it weren't for Zhao Xingbang to register with the Rongcheng Industrial and Commercial Bureau, there would be no way for those people in the aerospace industry. I don't know how big things I can do.

Anyway, the situation that the Ninth Academy base and the space base do not deal with each other has lasted for decades.

Especially in recent years, there were not many orders for military products, especially the production and manufacturing of short-range missiles, which were robbed by the space base, so that the Ninth Academy had to devote its energy to the research of air-to-air missiles and mines that were completely unfamiliar to them.

In this regard, Yun Fei was full of criticism.

The Ninth Academy is nothing more than a base for making guns and artillery, and by the way, it is engaged in the research of conventional weapons, and I did not know what kind of madness the high-level leaders of the Ninth Academy had to start the research and production of short-range missiles in the Ninth Academy.

Aerospace was originally a research and production base mainly for the production of missiles and rockets. It was also the leaders of the higher departments who pumped the wind and let them start to engage in the research and production of conventional weapons, but mainly on some heavy howitzers.

When the country was planning the economy, the two bases that were very close to each other could be peaceful. Anyway, no matter how much production is or how little, the salary and bonus are the same, not more, not less. But after the international situation has changed. The national strategic focus was adjusted, orders for military products were sharply reduced, and at the same time, a competition mechanism began to be established. How can two bases that have a lot of overlap in production tasks not be without contradictions?

"Boss, we haven't even fully understood the skills of the three-axis machining center now, and we have begun to engage in the electric spindle with fast speed, is this a bit of a big step?" When Sun Lin heard Yun Fei's words, he couldn't help frowning.

He knew that he couldn't let the young boss sit idle.

As soon as you are free, there will be a lot of wonderful ideas, but it is not easy to realize the technical projects to be proposed.

"This doesn't contradict our machining center research, right? The conventional spindle can no longer meet the performance of higher-performance CNC machine tools, and we must go to the front in research. Yun Fei shook his head.

It is already difficult to increase the spindle speed of CNC machine tools on a large scale with traditional transmission mechanisms.

As a person who has come over, the spindle of the machining center has become an independent electric spindle unit, which is the inevitable trend of the development of the machining center, because only the machining center with a wider spindle range and variable speed can adapt to the constantly changing products and materials.

In the future, China's machining market will be produced in small batches of single pieces as long as the processing plant products are produced.

In particular, the processing of those high-precision complex parts must be processed at tens of thousands of revolutions or even hundreds of thousands of revolutions.

The higher the spindle speed, the less stress the part will be during machining. Especially CNC milling machine or engraving machine, the tools used are very small, if the spindle speed of the machine tool is not high enough, the speed of the position on the center point of the tool tip is also lower, so that the processed product can not meet the design requirements at all.

"It is only through the simplification of the mechanical structure of the machine's main drive system that the machine performance can be more easily delivered. Now whether we have a wheeled transmission or a geared system, if we want to increase the number of spindles, except for increasing the number of gear sets, or using a higher power motor, I don't think there is any way, right? Yun Fei asked at the technicians in front of him.

Everyone nodded.

The machining center and the CNC milling machine are different from the CNC lathe, the spindle that produces the main movement for high-speed rotation has to constantly move up and down, if the spindle unit is too heavy, not only has a very serious wear and tear on the guide rail, or it will not take long to deform the column of the machine tool because of the relationship of gravity.

"You mean to integrate the functions of the machine spindle and the spindle motor?" Sun Lin was surprised by Yun Fei's daring to think.

At the same time, the graduate students of Rongcheng University who he took with him were also dumbfounded, they had only come to the Machine Tool Division of Jiuyi Research Institute for a long time, and they came here mainly to learn, who called their mentor to work for the young boss of Jiuyi Heavy Industry.

After knowing that Sun Lin and Situ Heyun would not return to the National Academy of Sciences in the capital, many university leaders in Rongcheng came to invite these academicians who are at the top level in China to go to their schools to take master's or doctoral students.

In this way, there are a lot of talents who study machinery or mechatronics, or materials are Yunfei network to their own banner, although these people are likely to only stay in Jiuyi Heavy Industry for a few years, but for Yunfei, it is enough.

These are students, and they don't have to be paid!

Moreover, they basically do some basic research work, even if they develop any technology, they all belong to the Jiuyi Research Institute, although they are not paid, but their research projects are funded by Jiuyi Heavy Industry!

"That's right, by combining the motor and the spindle in one unit, not only can we improve the spindle performance of our machining center, but at the same time, the emergence of a lighter high-performance spindle can also make our machine structure more simplified and reduce the difficulty of our assembly...... "Few people know the advantages of the electric spindle system better than Yun Fei.

The electric spindle has the advantages of compact structure, light weight, small inertia, small vibration, low noise, fast response, high speed, high power, simplified machine tool design, etc., and more importantly, it is easy to realize the precise positioning of the spindle.

The positioning of the spindle of the machining center is a very important indicator of the machine tool.

"Do you want to make the spindle unit of the machine independent? At the same time, a direct, backlash-free transmission is directly adopted? How should such a technique be achieved? Although he is a top expert in China, Sun Lin's imagination in this area is really limited.

Sun Lin's graduate students from Rongcheng University's School of Mechanical Engineering could only watch in amazement as their mentor discussed these advanced techniques with this small boss who was much younger than them.

Although they have studied for many years, they do not understand these techniques that they have never even heard of.

"Now foreign countries have just started to start, this spindle unit mainly uses AC high-frequency motors for direct transmission, and there is no indirect transmission mechanism. The main motor spindle unit is the motor spindle itself, which we can see as a motor with a relatively long spindle; High-frequency conversion device, mainly used to realize the control of speed; Built-in encoder is used to realize the control of the machine tool program transmitted in the numerical control system; Cooling device, oil mist lubrication device, tool changer, etc. ......"

Yun Fei told some of the structures of the electric spindle that he had learned, and at the same time drew a simple structure diagram of the electric spindle with chalk on the huge blackboard in the conference room.

"Xiaoyun, how much did it cost you to get this technique?" Sun Lin didn't believe that Yun Fei got such a picture without spending money.

Although it is very simple, with this simple diagram, they can make their research without many detours. (To be continued......)