Intelligent Industrial Empire

Chapter 200 Yunfei's Requirements for CNC Milling Machines

"There is only three million in working capital. If the current situation cannot be broken in half a year, the more machine tools the factory produces, the greater the loss of the factory. These three million can only support half a year."

To the surprise of the two elderly people, Yun Fei no but pretended not to see.

He originally thought that he didn’t buy any equipment. He spent close to 30 million on the construction of infrastructure workshops and residential quarters. The heavy processing equipment that Kmart bought back from the Soviet Union was all funded. Li Lu from Kmart helped advance the payment.

If you pay back Li Lu's money now, Yunfei's Jiuyi Heavy Industry will not have a penny left on the book. Three million is not enough to pay Li Lu's money.Perhaps Li Lu also knows the dilemma that Yunfei is facing now. At the beginning, Yunfei was forced to have the agency rights of CNC lathes produced by Jiuyi Heavy Industry in the entire Pearl River Delta. It is estimated that it was also out of help for Yunfei.

Now that Yun Fei knows about his difficulties in September 1st Heavy Industry, he really wants to hand over the PRD agency rights of CNC lathes to Li Lu, but this seems too unkind.

"Xiao Yun, we have done research in this area for a lifetime, but in the end, we have not found any results. We are afraid that we will not be able to complete the task you gave us in a short time..." Hearing Yun Fei said nine When Yizhong reached such a predicament, the two elderly people agreed to Yunfei's request without hesitation, but for this research, especially in such a short period of time, they were not confident that they could come up with a preliminary design plan for a CNC milling machine.

"Lao Sun, Lao Yun, the CNC milling machine is actually very simple. The main thing is that it takes a bit of effort on the spindle. The product we launched for the first time on the market has X-axis travel 630mm, Y-axis travel 400mm, and Z-axis travel 500mm; maximum speed It can reach 5,000 rpm, the rapid traverse speed can reach 6000mm, the feed speed is 1500mm, and the worktable can bear 500 kg. The spindle is driven by a synchronous toothed belt with a spindle motor. The spindle motor is equipped with a frequency converter to control the spindle speed..." Yunfei began to talk to the two men about his expectations for the various parameters of the first CNC milling machine produced by Jiuyi Heavy Industry.

These parameters stunned the two old guys.

It is not that the parameters that Absolute Yunfei requires are too low, but for them, these parameters are too high.

Since Yunfei has specified the spindle drive mode and specified them, and there is not much room for choice on the ball screw, Xinkaixing has to help design everything. In fact, they are mainly responsible for the spindle drive and electrical aspects. of.

The Soviets have been working on it for a few months. I believe that they have completed the basic design and completion. If only the most critical ones are left, such as electrical control, hydraulic servo system, and spindle system, with some extra work, they should be able to complete the theoretical design.

Anyway, what Yunfei requires is to come up with the theoretical design. As for whether key components such as the main shaft can be produced by that time, that is Yunfei's 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 cannot be produced for so many years is not only because there is no CNC system in China, but also because of the lack of domestic materials and the Defects in the machining of high-precision precision parts.

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

The most advanced bearings from abroad will never be sold to China, especially CNC grinders. Foreign controls are even more stringent than CNC machine tools.The CNC grinder is the most critical core equipment for the production of CNC cutting tools. For high-hardness alloys, if there is no grinder, it is impossible to machine sharp edges.

The tools currently produced in China are mainly ordinary welding blades in the traditional sense, which are YT, YW, and YG blades.Of course, the high-speed tool steel sharp steel knife (white steel knife) is also more commonly used.Because the cutters used by the milling machine are not like those used for turning tools, workers can sharpen them by themselves as long as they make out the blades.

Ordinary milling cutters used for milling planes or large steps are not problematic, but rod milling cutters used for various complex cavities are not good, because there are several spiral edges on the milling cutter, a special grinder must be used to handle the tool. Several cutting edges must be ground before use.In terms of tool grinding, China is taking the development path of special machines, but a special tool grinder, the price is not affordable by ordinary machine tool manufacturers, especially those thread grinders used for processing taps. .

The number of precision machine tools owned by the dinosaur cemented carbide factory specializing in the production of tools and the Rongcheng Measuring Tool Factory, which produces measuring tools, is only single digits, not to mention CNC.

If CNC machine tools want to develop, they must constantly improve the production efficiency and accuracy of CNC machine tools.This is not just a study from the machine tool itself, the study of CNC tools is also a top priority.

Now that the two old guys agreed, Yun Fei's worries did not diminish in the slightest.

When you don't see the results, you can never be happy.

The two old guys still had a lot to explain to their disciples and grandchildren, telling Yun Fei that they would go to Yun Fei's general manager's office to find Yun Fei in the afternoon after they finished making arrangements here.If you invest in research earlier, you will be able to see results earlier. They don't want this factory with huge ambitions to be bankrupted by those villains at the beginning.

Domestic numerical control technology has been left far behind by foreign countries. The domestic large-scale machine tool manufacturers are still ecstatic about the little development they have made on ordinary machine tools.Both Sun Lin and Situ Heyun are sure that those machine tool manufacturers that have already launched CNC lathes will not change much in a few years.

It's rare that some people in China have even invested in CNC machine tools. If they don't support it, they won't be able to afford the industry that they have devoted their entire life to, and I am sorry that they have devoted their entire life to it and loved the motherland for a lifetime.

After saying goodbye to the two old guys, Yun Fei took the freight elevator directly to the fourth floor where the Electronic Research Institute controlled by Tanalia was located.

I really don't want the two most important technical departments in charge to be the Soviets, but there is no way to do this in the current domestic situation.Although the Soviets are now at the end of the road, Yunfei is not worried that these Soviets will leave in large numbers in the future and run back to their countries to produce CNC machine tools. It will be a disaster for him.

Natalia saw Yun Fei, the boss of the department she was in charge of, arrived in her own territory, and quickly ran in front of Yun Fei.The research task assigned by the boss is about to be a complete success, and the process design for mass industrial production is currently being done, and the performance of these samples has been tested.

I don’t know where this young boss learned this knowledge. Anyway, according to the boss’s tips and the detailed design drawing that the boss gave, they not only came up with samples, but also designed several more models. Professional microcontroller.

"Boss, we will be able to complete the design of the production process immediately. The theoretical design of the control system you handed over to us is also coming to an end. Now we need to experiment, and a lot of experiments can make our products more perfect. Our electronic workshop, what When will it be put into production?" As soon as the boss came, Natalia asked the boss about the production of the new product.

The production process they are designing now is only theoretically designed. To make the process more perfect, it is necessary to find the deficiencies in the process in the mass production process and continue to improve.

"It's done so soon?" Yun Fei was a little surprised.

Although Natalia and the others are only engaged in the industrial production process design of the 32-bit chip they gave, they are also responsible for improving the Long CNC system.

There are more than 30 people under Tanalia, and almost no one has ever touched the CNC system. Even if they have the most theoretical foundation of the CNC system, they also have 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 condition to produce samples of chips in the laboratory?" Yun Fei didn't know why this female electronic engineer from the Soviet Union was so concerned about the industrial production of industrial control chips.

Even if you set up your own electronics factory to produce chips, you won't let them go to the workshop.

These people, but they paid a lot of money to get them back from the Soviet Union, they dare not use them as the most low-level technicians in the production workshop.The value of an engineer is in the development of new products, rather than being a technician in the production workshop.

"The quality of single-piece chips produced in the laboratory is too unstable. In addition, because of the shortage of raw materials, especially the shortage of monocrystalline silicon, we cannot let go of our hands and feet when we are conducting experiments..." Tanali Ya said to Yun Fei embarrassedly.

The laboratory provided by Yunfei, although the conditions are very simple, can also conduct a lot of basic research. After all, the key equipment in the laboratory is shipped from their original research institute, and some of their original research institutes. They don’t have the equipment, so what they research every day is not only the research tasks assigned to them by Yunfei, but also some research projects that they lacked in raw materials and research conditions when they were in the Soviet Union.

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