Chapter 72 High Precision Lathe (Part 2)

Obviously, now is not the time to realize Guo Tailai's dream, but it is the time when Professor Wang is stunned.

After receiving a call from Mr. Liu, Professor Wang rushed to the dust-free workshop immediately. Fortunately, they are all at 9003. Although Mr. Liu didn't say anything on the phone, he has cooperated with Mr. Liu for many years. Can he not hear the excitement in Mr. Liu's tone?

Professor Wang was also very curious about what kind of lathe Guo Tailai assembled.

When applying for this assembly project before, it was also for Guo Tailai to practice assembly, which will be very helpful for the design of Professor Wang's new machining center later. However, when Guo Tailai became a teacher later, the high-precision gyroscope had proved everything, and Guo Tailai no longer needed any assembly lathes to practice his hands.

However, it is more difficult to cancel the approved project. Later, Guo Tailai finally decided to do it. He wanted to apply for the funding for customizing a new motor, but this could not be approved again. Later, Guo Tailai simply did not apply for funding, but started working with the ones he had already applied for. Professor Wang stopped paying attention to it for the time being. At this time, he suddenly received an excited call from Mr. Liu. Is it something simple?

Although it was remade on the bed of an old lathe, Guo Tailai still repaired the old bed. The entire lathe is shining brightly, and the shape is designed in a future dream, which looks very tall.

Professor Wang doesn't care about the appearance, he is interested in the performance. As soon as the motor started, Professor Wang immediately noticed something was wrong. Although Professor Wang is not a professor in the Department of Electrical Engineering, how could he design high-precision CNC without the motor? Experienced Professor Wang can tell whether the motor is good or bad by just listening to the sound without looking at it. What's more, the coin that Guo Tailai put on it has been standing there all the time and has never fallen over.

Seeing the motor from the standing coin, Professor Wang's expression changed immediately. What type of motor is this? Why is there no sign and no manufacturer? But why does the brand-new motor case look familiar?

No, it's not that the motor case looks familiar, but the surface roughness of the motor case. This pure metal motor case is actually processed with high precision? Which manufacturer would be so extravagant?

"You did it?" Professor Wang immediately thought of the whole story. Wasn't Mr. Liu's report to apply for funds to buy motors rejected? Since there is no funding, it is impossible to purchase outside, coupled with such a high processing precision, Professor Wang immediately realized that it was Guo Tailai's work.

"From the inside to the outside, including every wire and even the winding of the coil group, it was all made by Fatty alone." Before Guo Tailai could speak, Mr. Liu interjected next to him: "For this, Fatty followed one of my How about the old man who learned how to wind a coil for a whole week?"

"Masterpiece!" Professor Wang couldn't take his eyes off the motor: "How do you control the speed? What control chip do you choose?"

"It's completely controlled by voltage." When it comes to technical issues, Mr. Liu can't do it, so Guo Tailai can only say: "You also know that I still lack the strength in industrial control software, so I can only use the simplest method to control it." .”

"Good! Good!" Professor Wang didn't know how to describe his mood anymore. Just this one motor made him excited. This is just voltage control. If it is changed to chip step control, wouldn't it be better than the best purchased motor they are using now?

A purely mechanical lathe, Professor Wang can get started directly after just a few glances. He directly rejected Guo Tailai's plan to demonstrate, and did it himself. There is no more accurate test result than experiencing it yourself.

However, when he saw the markings on the specially designed ruler, he was dumbfounded on the spot.

"A precision of 1 micron?" Professor Wang couldn't believe his eyes: "Can it be done?"

"Whether it can be done or not, you will know if you try it?" Mr. Liu smiled and handed Professor Wang a semi-finished part.

Professor Wang clamped the parts skillfully. Before doing it, he carefully measured the current size of the parts with a dial indicator, then adjusted the scale and started the lathe.

Halfway through the car, seeing the metal wire as thin as a cow's hair, no, thinner than a cow's hair rolled out from the tip of the knife, Professor Wang believed most of it. Suppressing the excitement, Professor Wang took the dial indicator to take another detailed measurement after the knife was turned off and the machine was turned off.

Because of excitement, Professor Wang failed to lean on the right place for two or three times with the dial gauge. Guo Tailai tried to help but was stopped by him. His eyes widened, his face full of disbelief.

If this is a high-precision CNC machine tool, then Professor Wang is not surprised to achieve this precision, but this is a semi-manual and semi-automatic mechanical lathe! Everything is mechanically linked, and even the motor only depends on the voltage change to change the speed instead of the control chip. God! How is this possible?

If it is a layman, it is estimated that this lathe can achieve this precision, and then exclaim, it is great, and there is no further information.

But Professor Wang is an absolute expert. The technical content displayed in this mechanical lathe is simply unimaginable, and it is impossible to describe it in words.

The gear box alone, the combination of so many gears, is used to transmit power without causing vibrations exceeding the millimeter level, which is an unimaginable exaggeration, but the problem is that manual control of the scale feed can also be accurate. To 1 micron, is this something that humans can do?

To put it bluntly, if the lathe is disassembled intact and installed by another person, the accuracy will be ten times worse. At least 1 micron movement driven by the meshing of four gears can instantly kill any domestic assembly master that Professor Wang knows, even Mr. Liu.

What's even more exaggerated is that Fatty Guo designed, manufactured and assembled this lathe from head to toe by himself, which reflects Guo Tailai's master-level skills in design, manufacture and assembly. Even Professor Wang himself may be able to design such a precise lathe according to the highest level of machining accuracy, but that's all, and it cannot be manufactured.

From confirming the accuracy of this lathe, Professor Wang knew that he definitely got a big deal. Last year, he made a decisive decision to accept Guo Tailai as a graduate student, which was simply the most correct decision. With Guo Tailai here, many of the elaborate designs in his mind can be fully realized.

In the past, I was worried about being able to design but not being able to manufacture it. It seems that in the future, I have to consider how to optimize the design in order to be worthy of such craftsmanship. With this kind of craftsmanship, what kind of height will the country's high-precision numerical control develop to in the future?