Intelligent Industrial Empire

"What did you do?" Yun Fei received the call, a little bit confused by Monk Zhang Er.Thinking stagnated for two seconds, his face was overwhelmed with ecstasy in an instant, and he ignored what the person on the phone said. He hung up the phone and rushed out of his general manager's office.

The call just now was from the old guy Sun Lin, and Situ Heyun was also excitedly trying to grab the phone. What did he think, as soon as he grabbed the phone in his hand, he heard the "beep" coming from the other end of the phone. At the busy tone, he reluctantly put down the phone in his hand and stared at the old man with dissatisfaction.

"The credit is for all of us, so why did you let you report goodbye to Kid Yun?" Situ He Yun always felt like a kid who had been robbed of candy.Sun Lin is the person in charge of this project, and he is also the same. Why should he be ahead of him to confess the good news to the Yun boy?In the end, he didn't even say a word to Yun Xiaozi.

Isn't this subconsciously telling Yun Fei that he is the biggest hero!

The sister-in-law can bear it, and the uncle can't bear it either.

"Kid Yun doesn't want to talk to you, I can't do anything..." Sun Lin is now looking proud. Yesterday, all the components of the entire system have been processed. They are transferred from the assembly workshop of Jiuyi Heavy Industry. An old assembler with rich technical experience, after a night of hard work, finally completed all the assembly this morning.

Just after the assembly was completed, Situ Heyun directed his apprentices and grandchildren to connect the rotary table driven by the hydraulic workstation to the CNC system.The CNC system extended from the LSK9201-X1 system produced by Huadu CNC. After connecting with the hydraulic workstation, Situ Heyun, an old guy, couldn’t wait to input several hydraulic tables defined as B-axis into the system. Running.

After the staff checked all the lines, they nodded to the two old goods standing in front of the control system operation panel.Situ Heyun stretched out his index finger and pressed the green button on the operation panel that represents the start of operation.

Sun Lin didn't grab the honor of being the first to press the start button. After seeing Situ Laohu press the start button, the huge hydraulic workbench began to rotate slowly.Hurriedly thinking about rushing to the office next to him, he wanted to give Yunfei the first time to congratulate the proponent of this project.Whoever is the first to give Yunfei good news shows who has done the most.Because only those who have done the most are qualified to give good news to irresponsible project proponents, owners, and users.

For a long time, both of them said that their team had the greatest credit, and they would not be able to compete for credit. Anyway, they simply wanted to overwhelm each other.In this simple fourth axis of the CNC machining center controlled by the CNC system and driven by the hydraulic workstation, whether the machine is more important or the logic control of the circuit is more important, since the implementation of this project, the two have disputed a lot. frequency.

There is no other reason, I want to get more people and more research funds for my subordinates.

Although they are members of the country, they are now working for Yunfei. If they can get more research funds from Yunfei’s local tyrant, they can use it to study what they have always wanted to do, because they don’t have it in the hospital. Funds in this area are not implemented projects.

It is true that Yun Fei is a local tyrant, but this local tyrant not only has no money, but also owes tens of millions to the bank.With more wolves and less meat, only strong wolves can eat their stomachs.

If it is evenly distributed, there may be no full wolves, but they will become more hungry, and in the end they will not be beautiful.

"This is the fourth axis you made?" Yunfei was dumbfounded when he saw the extremely flat fitter's workbench in front of him, which was more than a meter high and more than a meter wide with a huge chuck.

"Yes, is there something wrong?" The two old men were dumbfounded when they heard Yun Fei's words.

"Can you tell me how much Z-axis stroke is required for such a worktable to process some parts with a turning diameter of only tens or more than a hundred? How should the end near the chuck be processed to avoid the spindle colliding with the worktable? Tragedy?" With such a simple question, Yun Fei didn't believe these two old folks were unclear.

Since machining centers are mostly used for small machine tools with a stroke of less than one or two meters, generally speaking, the stroke in the Z-axis direction will not exceed one meter.With a Z-axis stroke of more than one meter, even if the moving distance is increased by 10%, it will be technically difficult to achieve more than 50%, especially for high-end machine tools, where the stroke exceeds 1mm, which is more difficult.

Most of the large machining centers are of gantry type. The worktable does not move, but is moved up and down by two columns and the main shaft on the beam.The longer the spindle extends, the worse the overall rigidity of the machine tool during processing.A machine tool with poor rigidity will not only reduce the cutting efficiency of the machine tool, but also make the machine tool unable to guarantee the machining quality and machining accuracy during the cutting process.

Without the rigidity of the spindle, in the cutting process, there will be a tool yielding or planting phenomenon under the reaction force of the cutting force.In less serious cases, the part is just that the size of the program design cannot be processed in place, or a small amount of overcutting.But in serious cases, even the entire part will be scrapped.

You should know that, in many cases, the price of products processed on the processing center will far exceed the value of the processing center itself.If this happens all the time, who would dare to use such a machine tool?

Therefore, in the whole world, the more large and heavy machine tools are, the more expensive they are.That kind of super-large cutting machine tool is even larger than the standard workshops of many factories, so special workshops must be built.Don't mention the price. Yunfei knows the largest machine tool in his own world. The price is hundreds of millions. It is still exchanged with RMB for eight yuan and six dollars!

When the two old men heard Yun Fei's culture, their faces were filled with pride and joy, and their opponents disappeared.The two of them have been dealing with various machinery and equipment for decades, so how can they be unclear about the problem.

From the very beginning, Yun Fei gave them some vague theories and left them alone, letting them explore and improve while designing.It is not a very difficult problem at first, but it is because of inertial thinking in China that it has not been thought of.At present, even the two-axis CNC lathes in China are still close to the door due to the problem of the ball screw. The three-axis machining center involves more things. At this time, they cannot directly cross the most basic two-axis and three-axis. Axis, focus on the four axes that involve more knowledge.

When the number of domestic machining centers is maintained to a certain extent, expensive four-axis machining centers cannot be as cheap as three-axis machining centers because of their high prices (compared to four-axis, especially five-axis machining centers, which cost millions of dollars. In terms of price), it is popular in China, and the domestic eyes will put their eyes on the simple four-axis.In the world of Yunfei, 80% of China's four-axis machining centers appeared in this way.

"Well, Xiaoyun, I think you know, we don’t have much foundation, and it’s pretty good to be able to do this. Many of our heavy military equipment now require large four-axis machining centers. There is no way for the small rotary table to satisfy the use..." Knowing that the thing that everyone has spent several months in front of them has no value in mass production, Sun Lin felt very uncomfortable.

Situ Heyun and a group of disciples of them also nodded in agreement with Sun Lin's words.

High-end machine tools originally serve the defense industry.If the high-end machine tools produced cannot be used in the military industry, how can they be so popular?

This additional external fourth axis controlled by the CNC system looks very simple on the surface, but there are really too many things involved.Although it is only a simple rotary table driven by a hydraulic workstation and a numerical control device, according to their design, if it is made too small, due to the backwardness of domestic materials and heat treatment technology, it is impossible to make those with a diameter of only two or three millimeters. The parts bear the torque generated when processing some relatively long and complex parts.

For example, processing a transmission shaft composed of two regression parabolic quadratic functions or cubic functions used in high-speed rotation applications is not only difficult to process, but also because the reciprocating stroke motion of many high-precision large-scale equipment requires a relatively long transmission shaft. , The torque generated by such shaft during the machining process for the rotation work is repeated changes in the regression curve in a large range.If the rotary table cannot withstand the torque of high-speed rotating processing, it is likely to cause the rotating parts in the rotary table to break.

"Do you expect to use this for large-scale parts processing? Is there a mistake?" Yun Fei was depressed by their thoughts.

If you follow them in this way, what you will get is not a simple fourth-axis rotary table for attaching, but a turning-milling composite machining center.Although he also wants to develop a turning-milling composite machining center, the difficulty is even higher than that of five-axis.Even in his world, in the era when he left, Germany, where CNC machine tool technology was the most powerful, did not fully succeed.

"Lao Sun, I know what you want to create is the fourth axis used on large-scale machine tools, but have you ever thought that, except for the few imported from abroad, the X stroke does not exceed two meters, and the Y axis The old three-axis machining center with a stroke of no more than 1.4 meters does not have any large-scale machining centers at all. Even if you make such a large one, what can you do now?" Yun Fei looked at the age ratio of the least. A round of these people said earnestly.

"Although such a huge rotary table is of no value at all, it is not useless..." Yun Fei knew that he could not dispel the enthusiasm of these free labor.

Hearing what Yun Fei said, everyone stared at Yun Fei enthusiastically.