Chapter 263

Yun Fei secretly hates that he doesn't learn computer programming. Otherwise, he will set up a software company to pirate Microsoft's classic operating systems. He won't let Microsoft go bankrupt. At least, he will be the richest man in the world in the future, not Bill's old goods.

"Xiao Yun, the tool magazine of the machining center in the laboratory will conduct the first experiment tomorrow. Do you have time to go to the scene?" Yunfei is wandering outside the sky and doesn't notice that it's almost time to get off work.

The appearance of Wu Zhongda made Yunfei feel even better.

The military not only provided electronic personnel, but also knew that Yunfei lacked many experienced professional technicians in mechanical, hydraulic and pneumatic aspects. It took the initiative to provide Yunfei with dozens of technical engineers in some of their factories and research institutes. With the participation of these people, the team efficiency of situ Heyun and Sun Lin immediately went up. Most of those who join in are over 40, which is not comparable to the young graduate students they bring.

For the purpose of the military, Yun Feidao is also clear.

Since the state focuses its development on the economic field, the military has little investment in military equipment. In addition to supporting millions of standing troops and updating some really old weapons and equipment, the military also has to invest research funds in some of the most expensive cutting-edge fields, such as aerospace and aviation, which are related to the whole national defense industry, There is no surplus funds to invest in some ordinary conventional weapons and equipment.

Without the investment of research funds, the large number of research teams in the military can only be idle with wages. This is not only a serious waste, but also a sad thing for technical engineers without research projects.

It is a win-win cooperation for both sides for military researchers to enter the research department of 91 heavy industry. Those grass-roots researchers in the military can maintain their research status in the September 1 heavy industry, so as not to gradually degrade their research ability; The 91 heavy industry has solved the problem of the shortage of scientific research teams they have been lacking.

Of course, these researchers cannot always serve the 91 heavy industry. As long as the stalled projects of the military are started again, all these researchers belonging to the military will withdraw from the 91 heavy industry and return to their units. Fortunately, Yun Fei signed a five-year scientific research contract with the military represented by Zhao Xingbang. Within the scope of the contract, even if these military researchers want to evacuate, they must consult with 91 heavy industry in advance. These are written in white ink in the secret contract.

In the environment of a large number of bankruptcies of state-owned enterprises, these technicians and engineers of the military were well placed. They cooperated with 91 heavy industry and explored a new mode of cooperation. This was also when the domestic economic situation improved and the country gradually began to vigorously develop armaments, The reason for the blowout of the military's high-precision and cutting-edge weapons and equipment for a period of time. This is the last word. Let's get down to business.

As soon as he went to work the next day, Yun Fei entered the mechanical test workshop of the scientific research building.

The development and test stage of various equipment of Jiuyi heavy industry is in this test workshop.

"How about sun Lao? Are you sure you can do it all at once? " The damn weather is getting hotter and hotter. There is no central air conditioning and only a powerful fan in the experimental workshop. In the early morning of work, people can't feel much cool.

"Do you think this is an ordinary machine tool test? Once again, you boy, everyone who knows, knows that you are a little eager to see your own processing center appear in the market; I don't know. I thought your confidence soared after you built a CNC milling machine in the company and became arrogant... "Sun Linbai glanced at Yunfei.

Although this boy hasn't come to the mechanical test workshop for a while, he won't enter the electronic research laboratory upstairs. He doesn't know what his idea is. Sometimes when he meets some problems, he can't find anyone to discuss with this boy.

"I have confidence in you!" Yun Fei smiled.

"This is not a CNC milling machine. We have worked for so many years and have succeeded, but the problems of positioning accuracy are not so easy to solve. " Situ Heyun said to Yunfei seriously.

"Yes, you don't want to think about it. We said to build a simple hat type magazine first. You don't agree. You have to build a complex disc type magazine as soon as you come up..." Sun Lin was very upset about Yun Fei's strategic way.

It's a challenge for him to start from the more difficult places, which is exactly what he likes. It is precisely because the disc type tool magazine is much more difficult than the hat type tool magazine. When the tool is changed after the tool magazine of the machine tool rotates, the manipulator used to grasp the tool is likely to fail to grasp the tool and fall off.

Of course, the phenomenon of tool drop is a common problem in NC machining centers, which has many factors. Generally, it is guaranteed to be within a few ten thousandths of the range, that is, 10000 tool changes will occasionally occur once or twice, otherwise, this CNC machine tool will be unqualified at all.

The price of NC cutting tools is not comparable to that of ordinary cutting tools, especially some specially customized NC cutting tools. A 10mm diameter alloy milling cutter may have thousands of pieces. If it is damaged due to tool loss in the process of tool replacement, who dares to buy such a machine tool?

These days, the test workshop has been working on this thing day and night. If the hydraulic and pneumatic aspects are controlled separately, there is no problem. Now the whole tool magazine is assembled with the machine tool, which involves a lot of things. Otherwise, China cannot make much progress in CNC machine tools for decades. In the field of high-end machine tools, All rely on the import of high-end machine tools from Germany, the United States and Japan.

"This is not a problem. Anyway, what we are doing now is just a testing machine. We still have time to gradually improve various problems." The two old goods are more urgent than Yunfei. The development of foreign CNC machine tools is changing with each passing day. China is still trapped in the most low-end three-axis. It is not possible to achieve self-sufficiency in high-end machine tools in a short time. It is very likely that they will not see it in their whole life.

If the cloud is not urgent, it is false. Several enterprises engaged in CNC machine tools in Taiwan are seeking to build factories in the mainland during this period.

Taiwan's Youjia, Taiyu and other factories will set up factories in the mainland by 1995 at the latest. If before that, the processing center of Jiuyi heavy industry does not meet the technical parameters of the NC processing center they produce, it will be a disaster for Jiuyi heavy industry.

In China, whether official or folk, there is a blind worship of foreign technology. Everyone thinks that the moon abroad is rounder than China. Otherwise, so many high-end talents from China spend the expenses provided by the state to study. In the end, they automatically stay in the capitalist world and are exploited by those vampire capitalists.

"Get the program ready and install all the tools. Hurry up!" The machine tool body is a machining center with an x-stroke of 800mm, a Y-axis stroke of 500mm and a Z-axis stroke of 500mm specially produced by Jiuyi heavy industry. This type of machining center is the most widely used in China's NC machining market.

The hydraulic workstation, pneumatic workstation and tool magazine have been assembled on the first day. Today, the first experiment is that the machining center behind the assembly calls the tool in the NC tool change code program for positioning and the positioning accuracy under some simple cutting actions.

Under the command of Sun Lin, Lin Yajun, who was seconded by Xin Kaixing, skillfully installed various knives and quickly completed the knife setting of each knife in the z-axis direction.

The tool setting of the machining center is much more convenient than that of the NC lathe. Only the workpiece coordinate system needs to be set for the parts to be processed in the x-axis and Y-axis directions. After the tool setting is completed, as long as the machining coordinate system of the parts is not set separately, no matter how many knives are used in the program, the two-dimensional coordinates of the workpiece will be set by default. The length of each tool is different. After compensating these tools in the length direction, the machining accuracy of the machine tool can be guaranteed as long as the program does not make mistakes. Theoretically, the machining accuracy given by the program can be processed by the NC machine tool.

"Lao Wu, we use aluminum in this cutting test. Don't set the cutting elements too small. Otherwise, it is impossible to measure the rigidity of the machine tool, and there is no way to detect the machining accuracy... "Yun Fei said to Wu Zhongda, who programmed himself.

Although the CNC milling machines produced by the company have been sold in the market, the debugging personnel of these CNC machine tools in the company are still unfamiliar with the programming of the machining center. Wu Zhongda

Starting to enter xinkaixing, Huadu, is to do programming. Lin Yajun is the operator of the machining center brought out by Yun Fei. Now he is responsible for the NC machining programming and workshop management of xinkaixing, Chengdu.

These two people, in theory, are the people who can find the best programming and machine operation technology of the machining center in Chengdu except Yunfei. After all, the whole city, except Chengdu measuring tools

The seventh Institute of aerospace has bought a few machining centers in the past two years, and there are few CNC machine tools in Chengdu.

Not to mention the technical level of CNC technicians trained by German or Japanese technicians in aerospace and capacity, the relationship between several companies is not very good. They will certainly not lend CNC technicians who can't be busy with production tasks to Jiuyi heavy industry for machine tool debugging.

You know, the debugging of the test machine tool can't be done in one or two days.