Chapter 200

"There is only three million working capital. If we can't break the current situation within half a year, the more machine tools the factory produces, the greater the loss of the factory. This three million can only support half a year. "

For the surprise of the two old people, Yun had to pretend not to see it.

He originally thought that he didn't buy equipment, but only engaged in the construction of infrastructure plants and residential areas, which cost nearly 30 million. For some heavy processing equipment that Kmart helped to buy back from the Soviet Union, the funds were advanced by Kmart's Li Lu.

If you return Li Lu's money now, Yunfei's 91 heavy industry will not have a penny left on the book. Three million will not be enough to return Li Lu's money at all. Perhaps Li Lu also knows the difficulties Yunfei is facing. It is estimated that Yunfei was forced to ask for the agency right of the CNC lathe produced by 91 heavy industry in the whole Pearl River Delta.

Now that Yunfei knows the plight of Jiuyi heavy industry, he really wants to hand over the Pearl River Delta agency of CNC lathe to Li Lu, but it seems too unkind.

"Xiao Yun, we've been doing research in this field for a lifetime, but in the end, we haven't produced any results. We're afraid we can't complete the task you gave us in a short time..." hearing Yun Fei's statement that 91 heavy industry is in such a dilemma, the two old people agreed to Yun Fei's request without hesitation, but for this research, especially for such a short time, They are not confident that they can come up with a preliminary design scheme of NC milling machine.

"Sun Lao, Yun Lao, CNC milling machine is actually very simple. It mainly needs to spend some time on the spindle. The products we introduced to the market for the first time have a X-axis stroke of 630mm, a Y-axis stroke of 400mm and a Z-axis stroke of 500mm; The maximum speed can reach 5000 rpm, the fast moving speed can reach 6000 mm min, the feed speed is 1500 mm min, and the workbench can bear 500 kg. For the spindle, we use the synchronous toothed belt drive of the spindle motor, but we can't. We use the belt drive, and install a frequency converter on the spindle motor to control the speed of the spindle... "Yun Fei began to talk to them about his expectations for the parameters of the first CNC milling machine produced by 91 heavy industry.

These parameters stunned the two old men.

They don't absolutely require that such parameters are too low, but they are too high for them.

Since Yunfei even pointed out the spindle transmission mode to them, and there is little choice in the ball screw, everything has to be designed with the help of xinkaixing. In fact, they are mainly responsible for the spindle transmission and electrical.

The Soviets have been working for several months. I believe they can complete the basic design. If only the most critical ones, such as electrical control, hydraulic servo system and spindle system, are left, they should be able to complete the theoretical design.

Anyway, what Yunfei requires is to work out the theoretical design. Whether the more precise key components such as the spindle can be worked out at that time is the business of Yunfei, a young boss. Although they have been engaged in the research of CNC machine tools for a lifetime, they understand better than anyone that the reason why China's CNC machine tools can not be developed for so many years is not only because there is no CNC system in China, but also because of the lack of materials in China and the defects in the processing of high-precision parts.

CNC milling machine or machining center, the most important thing is the spindle and the precision bearing on the spindle. In this regard, China has a big gap with foreign countries, especially bearings.

The most advanced foreign bearings will not be sold to China at all, especially CNC grinding machines. Foreign control is even more stringent than CNC machine tools. CNC grinding machine is the most critical core equipment for the production of CNC tools. High hardness alloy can not process sharp edges without grinding machine.

The cutting tools currently produced in China are mainly ordinary welding blades in the traditional sense, which are YT, YW and YG. Of course, the sharp steel knife (white steel knife) of high-speed tool steel is also commonly used. Because the tool used by the milling machine is not like the tool used by the turning tool. As long as the blade is pulled out, the worker can grind it by himself.

There is no problem with ordinary milling cutters for milling planes or large steps, but rod milling cutters for various complex cavities can not be used, because there are several spiral edges on the milling cutter, which can only be used after grinding several edges of the cutter with a special grinder. In the grinding of cutting tools, China is taking the development path of special machines, but a special tool grinder, the price is not affordable for ordinary machine tool manufacturers, especially those thread grinders used to process taps.

The number of these precision machine tools owned by dinosaur cemented carbide factory specializing in the production of cutting tools and Chengdu measuring tool factory specializing in the production of measuring tools is only single digits, not to mention CNC.

If CNC machine tools want to have great development, they must constantly improve the production efficiency and production accuracy of CNC machine tools. This is not only the research from the machine tool itself, but also the research of NC tools.

Since the two old guys agreed, Yun Fei's worry did not weaken at all.

Never be happy when you don't see the results.

The two old guys still have a lot to tell their disciples and grandchildren. Tell Yunfei. After they have arranged here, they will go to Yunfei's general manager's office to find Yunfei in the afternoon. If they invest in research earlier, they can see the results earlier. They don't want the factory with great ambition to go bankrupt by those villains at the beginning.

Domestic CNC technology is far away from foreign countries. Those large machine tool manufacturers in China are still secretly happy about their little development in ordinary machine tools. Sun Lin and situ Heyun are sure that the machine tool manufacturers that have launched CNC lathes will not change much in a few years.

It's rare that some people in China have even invested their wives in CNC machine tools. If they don't support it, they can't afford the industry for which they have paid all their life. What's more, I'm sorry that they have paid all their life and loved their motherland all their life.

After saying goodbye to the two old guys, Yunfei took the freight elevator directly to the fourth floor of the electronic research institute controlled by tanalia.

I don't want to think that the heads of the two most important technical departments are the Soviets, but there is no way in the current domestic situation. Although the Soviets are now at a dead end, Yun Fei is not worried that these Soviets will leave in large numbers and run back to their country to produce CNC machine tools, which will be a disaster for himself.

Natalia saw Yunfei, the boss of the Department she was responsible for, arrive at her own site and quickly run to Yunfei. The research task assigned by the boss is about to achieve complete success. Now we are doing the process design of mass industrial production and have tested the performance of these samples.

I don't know where the young boss learned this knowledge. Anyway, according to the boss's tips and the detailed design drawing given by the boss, they not only made samples, but also designed several more professional MCU.

"Boss, we will be able to complete the design of the production process immediately. The theoretical design of the control system you gave us has also come to an end. Now we need a lot of experiments to make our products more perfect. When will our electronic workshop be put into production? " When the boss came, Natalia asked the boss about the production of new products.

The production process they are now designing is only designed in theory. In order to make the process more perfect, we must find the deficiencies in the process and constantly improve it in the process of mass production.

"Finished so soon?" Yun Fei was a little surprised.

Although Natalia and they are only engaged in the industrial production process design of the 32-bit chip given by themselves, they still shoulder the heavy responsibility of improving the Dragon CNC system.

Tanaliya has more than 30 people, and basically no one has been in contact with the CNC system. Even with the most theoretical basis of the CNC system, she also has the most detailed full set of design drawings provided by Yunfei. Yun Fei believes that this is not a problem they can solve in a short time.

"Isn't there a sample for conditional chip production in the laboratory?" Yun Fei doesn't know why this female electronic engineer from the Soviet Union is so concerned about the industrial production of industrial control chips.

Even if they set up their own electronic factory to produce chips in the future, they will not be allowed to go to the workshop.

These people, however, were brought back from the Soviet Union at a high price. They dare not use them as the lowest technicians in the production workshop. The value of engineers is in the development of new products, not as technicians in the production workshop.

"The quality of the chip produced by a single piece in the laboratory is too unstable. In addition, due to the shortage of raw materials, especially monocrystalline silicon, we can't let go of our hands and feet during the test..." tanaliya said shyly to Yunfei.

Although the laboratory provided by Yunfei is very poor, it can also carry out a lot of basic research. After all, the key equipment in the laboratory is transported from their original research institute, and some equipment they don't have in their original research institute, so they study not only the research tasks assigned by Yunfei every day, They also carried with them some research projects because of the lack of raw materials and research conditions in the Soviet Union.

In particular, 32-bit industrial control chips are also absent in the Soviet Union. The Soviet Union did not go farther than China on the road of industrial control chips.