Super military empire

"The front is the assembly area of ​​the four-axis machining center, which is mainly used to process some high-precision aerospace products. The four-axis rotation around the x-axis is added to the three-axis. The fifth axis that swings..." A four-axis machining center is very different from a three-axis machining center.

The main reason is that the four-axis machining center has an extra worktable that can rotate the processed parts.In fact, this is also a simple four-axis machining center.

A true four-axis machining center is also an absolute strategic material in China. It is difficult to produce and the cost is much higher than abroad.This has a very large impact on the accuracy of aerospace and advanced precision manufacturing parts.For example, an ordinary three-axis machining center can only process one surface of the part, that is, the surface perpendicular to the spindle. However, after the four-axis machining center is installed, due to the existence of the rotary table, the part It is perfectly possible to rotate the rotary table ninety degrees to process another surface or one hundred and eighty degrees to process the opposite surface of the processed surface after processing one surface.

In this way, it can effectively ensure that most of the processing of the armor is completed at one time, and the spatial position accuracy of the parts can be guaranteed.

In the aerospace industry, because many parts require very precise spatial location, ordinary processing methods cannot effectively guarantee it. Even if the master's sense and experience are assisted by various top-level testing equipment, it cannot be as precise as a machine. of.

The reason why missiles, spaceships, and top fighters are difficult to produce and costly to manufacture is because the requirements for the entire cutting-edge manufacturing field are too high.

Some things can't be processed by a master with the skills and experience.

Especially some ultra-precision and ultra-complex structural parts of the opposite sex structure!

The Republic of Liu Yijiu was unable to develop in this respect, so for a long period of time, technological development in the aerospace field was very slow.

If we learn from the Soviet model, the manufacturing cost will be three to four times or more expensive than that of CNC machine tools.Otherwise, it would be impossible for the U.S. imperialism to drag down the Soviet Union just by relying on a space war plan.

"This is a simple four-axis. On the fourth axis, don't you have a complete technical form?" Karlov knows these devices very well.

China's achievements in CNC machine tools really shocked them.

It is absolutely impossible that the United States has given China dozens of CNC machine tools for the Chinese to disassemble in the past few years.

Even the four large-scale industrial mother machines exported from Japan to the Soviet Union are not as advanced in terms of precision-because the four CNC machine tools are processed by the paper tape punching programming method that has been gradually eliminated!

"It is indeed a simple fourth axis. Because our control software can't keep up, although we only added a fourth axis, the complexity of the entire control software has increased by at least five times. At present, aerospace and even ordinary weapons and equipment Manufacturing requires this kind of CNC machine tools, and our domestic economy is not good, the country has no money, so we must save costs. If you need it, we can provide you with a complete form of four-axis machining center..." Liu Yijiu I don't feel that the things here are a bit simple for the Soviets.

The control system is the key.

This is the fourth axis formed by the rotary axis controlled by the pmc module. The required system is only to allow the simple rotary table to rotate according to the needs of the program during the processing of the other three axes, and even four axes and four linkages, that is, three axes. There are very few cases where the fourth axis needs to be rotated while performing displacement, and it is usually four-axis three-linkage.

For the processing program, the control mode requirements are much simpler.

"There is no way to process heavy parts! Liu, what we need is a fourth axis that can process heavy parts. If there is this, I think the transaction between us will become easier!" Karlov said to Liu Yijiu said.

This kind of simple four-axis machining center can only be used to make small and complex parts, and it is impossible for high-precision machining of large special-shaped parts.

Especially when processing some relatively large parts, due to the existence of the simple workbench, it will effectively occupy the processing area and reduce the size range of the processed parts.

The CNC machine tool the Soviets bought in Japan is a special CNC machine tool for processing large ship propulsion propellers. Each blade has a processing axis. In this way, processing several blades at the same time will keep the size of the processing consistent and the amount of deformation will be much smaller. , Is not universal.

"No problem, we can provide it to you, but the price is at least two million dollars a unit!"

Back then, in its own era, when the Republic took advantage of the Berlin Wall being pushed down, Europe ignored China and imported several four-axis machining centers from the Federal Republic of Germany. The price of each was two million US dollars!

That was the first time that China bought an advanced multi-axis CNC machine tool.

It is precisely because of the four-axis linkage CNC machine tools that the Republic's intercontinental missile research progress is very fast, and even promoted the birth of the Xiaolong fighter and the early service of the J-10.

Now it is sold to the Soviet Union, even if the U.S. dollars in the 1980s are more valuable than those in the 1990s, it would be very authentic to ask him two million.

Who calls the Soviets?

Why did the Soviets urgently need it?

"Is this price too high?"

"It's not high, you can read the samples first, and then talk about the processing capabilities." Liu Yijiu didn't worry about the Soviets being too expensive.

These things, even if he is like the Japanese, it is not a problem.

Lao Maozi’s habit is very bad, that is, bargaining is outrageous, and when the price is quoted, it will often only bargain at 10% to 20%. In the end, it will be sold at 50%, which will let those who do business with them Laugh.

Liu Yijiu didn't bother to rub prices slowly with them.

Let them see the processing of the four-axis machining center first, and then talk to them about the price.

We rely on technology to speak!

"Do you have any in here?"

"No, in our Hongfeng Machinery Factory." Liu Yijiu shook his head.

This is only used to produce CNC machine tools.

The key core components of CNC machine tools are produced in the mountain and then transported to Rongcheng by freight train every day.

Production costs are not a problem for most Chinese companies today. As long as they can produce products that are scarce in the market, they can have huge profits beyond imagination.

Hongfeng Machinery Factory was actually allocated to the Fourth Station Factory of the Rongcheng Air Force of the Ninth Academy.

Originally mainly used to repair fighter aircraft, it has a certain degree of mechanical processing capability. It mainly produces some vehicles for airport runway maintenance and repairs some simple failures of fighters. As Taipingsi Airport was abandoned by the military, it gradually began to decline.After Taipingsi Airport was transformed into a research area of ​​611 by the Ninth Hospital, most of the people in that area were relocated, and the surrounding area was under martial law.

According to Liu Yijiu's plan, an aircraft production plant that is about the same size as the 132 plant, or even larger, will be built here, mainly for the production of large aircraft and research in this area.

After all, the construction and development of Chengdu is still too far away, only a small area around the central Tianfu Square.

"Everyone, we are in front of our confidential unit. I hope you will hand over all the recordable equipment, paper and pen on your body, otherwise it will be unpleasant, and we will not be able to explain it, and it will hurt our peace..." On the way to the factory, Liu Yijiu said to everyone.

He planned to eat at Hongfeng Machinery Factory at noon.

For these customers who gave money, he didn't think of them as God.

The staff canteen is already very good.

Hongfeng Machinery Factory was originally a small factory with more than 600 people. There were only six mechanical workshops. There were also chemical workshops for preparing oxygen, liquid nitrogen and other gases needed by the airport.

Now this side has been transformed into the processing experiment workshop of the 611 Institute, which is mainly used for processing engines and verifying the prototype parts of the new generation of fighters. Most of the technicians are transferred from the mountain.

An absolutely confidential unit, and even the future development of Chengdu must avoid this area...

Regarding Liu Yijiu's arrangement of meals in the staff canteen, the Soviets have no idea at all.The living standards in Chinese military factories are much better than those in Soviet military factories!

In particular, the affiliated units of the Ninth Hospital have always been domestic benchmarks in terms of welfare.

After the meal, Liu Yijiu refused Du Bin's escort and took a group of Soviets directly to the precision machining workshop.

He got al-31fn from the hands of the Soviets, and conducted processing experiments here, without worrying that the Soviets would know it.

"Buzzing..." As soon as I opened the door of the precision machinery workshop, I heard a burst of noisy mechanical friction.These sounds are far less harsh than rough processing, but they are not the final finishing sounds.

The friction sound of the tool cutting metal materials at high speed is very loud, especially when processing some difficult-to-machine materials, the whole sound can be transmitted far away.

The newly repaired workshop is as tidy as other factories. There are not many equipment in the finishing workshop here, but these equipment are much larger than those seen in Hongshan Machinery Factory.

"There are some high-precision and complex and special-shaped parts processed here, most of which are samples for experiments. The samples of al-31fn you gave us are currently being produced here..." Liu Yijiu opened the door. Said.

In order to sell CNC machine tools to Lao Maozi, he is also very hard.

Even these confidential things are shown to the old men, especially there are many intelligence personnel inside.