"Mr. Tau ......"

"Speak. ”

"Our machine tools all have coordinate projections. ”

"What do you mean?"

"It's just that there are restrictions on where it can be used. It cannot exceed the specified coordinate range. For example, it can only be used in your South Africa. If this range is exceeded, the machine automatically locks. ”

"No problem. We're using it in our own country. ”

"Good. ”

Wang Buan nodded.

It seems that Tau is indeed sincere.

The so-called coordinate projection is not bragging. It's the real thing.

Why can't any of the other robot elves leave the industrial park half a step apart from the No. 1 robot elf?

Such a good restriction measure, of course, should also be used on the machine. To ensure that the use of the machine is not prohibited.

Otherwise, if Tau is sold to a third country, it will not be fun.

In fact, many high-end machine tools have positioners.

The main role is to supervise the users of machine tools.

If you are trying to sell the machine to a third party, the manufacturer will know about it immediately.

"In addition, there are certain safeguards. ”

"What do you mean?"

"It just can't be completely disassembled. If there is a problem, please return it to the factory for free replacement. It cannot be disassembled by itself. ”

"However, normal maintenance ......"

"Of course, there is no problem with ordinary maintenance. Complete dismantling involves technical secrets. ”

"No problem. ”

After hesitating for a moment, Tau finally agreed.

This is to be expected.

There are restrictions on the import of precision machine tools from any country.

Among them, the most important one is that it cannot be dismantled and dismantled. Otherwise, it's a violation. If there is a problem later, the supplier will refuse to carry out the repair.

Strictly speaking, the main purpose of this provision is to protect core technical secrets.

Especially for five-axis CNC linkage machine tools, the core secret is very precious.

In addition, the disassembly of the machine tool will also seriously affect the accuracy.

Most of the machine tools, once disassembled, the accuracy is difficult to guarantee.

"The accuracy you need is a bit high!"

"I also ask Mr. Wang for his great assistance. ”

"Huh. ”

Wang Buan did not answer positively.

The precision of the machine tool needed by Tau is indeed very high.

All accuracy requirements are 1 micron.

Obviously, this is with reference to the state-of-the-art machine parameters produced in the industrial park.

In fact, there are almost no machine tools in the world that can achieve an accuracy of 1 micron. Almost all of them are products from the laboratory.

The only thing that can really be taken out and used on a large scale is Wang Buan's machine tool.

Perhaps, this is the key reason why Tau came to him.

Some machines that claim to be able to achieve an accuracy of 0.01 microns are actually confusing.

How much is 0.01 microns? 10 nanometers!

It's more advanced than Intel's processors.

Other people's processors are carved with lithography machines.

In fact, Wang Buan can also do such a machine tool. 1 nanometer can do it. Not to mention 0.01 microns.

However, such a machine tool is useless for the vast majority of parts.

Unless it is used to produce electronic products or optical components.

For mechanical parts, 1 micron is already a very high and very high accuracy.

"Geometric accuracy, 1 micron. ”

"Motion accuracy, 1 micron. ”

"Transmission accuracy, 1 micron. ”

Wang Buan muttered to himself thoughtfully, and slowly put down the purchase list.

There are no problems with the indicator parameters. It can be done.

The question is......

With such a high level of precision, can Tau and his workers really use it?

It's not that he underestimates Africans. I'm really worried!

When it comes to construction, we must not count on Africans.

But when it comes to sabotage, no one is an opponent of Africans.

No matter how advanced the instrument is, in their hands, it can make you a pile of scrap copper and rotten iron. This is an innate talent attribute of Uncle Black Africa.

Sometimes, Wang Buan feels that it is enough to give them a machine tool with an accuracy of 1 mm.

The accuracy of the machine tool has three aspects:

Geometric accuracy.

Motion accuracy.

Transmission accuracy.

Geometric accuracy refers to the accuracy of the shape, mutual position and relative motion of the main components of the machine tool under no-load conditions when it is not moving (the machine tool spindle does not rotate or the worktable does not move, etc.) or the movement speed is low. Such as the straightness of the guide rail, the radial runout and axial movement of the spindle, the parallelism or perpendicularity of the spindle centerline to the moving direction of the slide table, etc. Geometric accuracy directly affects the accuracy of the processed workpiece, which is the basic index to evaluate the quality of the machine tool. It is mainly determined by the quality of structural design, manufacturing and assembly.

It is also known as static accuracy and static accuracy.

It is the most basic indicator of the machine tool.

Most of the time, when it comes to the accuracy of a machine tool, it refers to static accuracy. It is the easiest accuracy to achieve.

The question is, does Tau understand?

"Mr. Tau, do you know what geometric precision is?"

"I don't know. ”

Sure enough, I didn't know at all.

It's also very calm.

I'm really worried about future machine tool users!

Do they really need it?

"Mr. Tau, do you know the precision of movement?"

"I don't know. ”

"Then do you know the transmission accuracy?"

"I don't know. ”

Wang Buan secretly smiled bitterly in his heart.

You see, that's how it turned out. They don't even know the concept of precision.

The parameters on the purchase list are probably copied.

Seeing that everyone else wrote it like this, Tau copied it.

Motion accuracy refers to the accuracy of the main parts of the machine tool when moving at the speed of the working state. For example, the rotation accuracy of high-speed rotary spindles. For high-speed and precision machine tools, motion accuracy is an important index to evaluate the quality of machine tools. Motion accuracy and geometric accuracy are different. It is also affected by the speed of motion (rotational speed), the gravitational force of moving parts, the force of transmission, and the frictional force. It is related to factors such as structural design and manufacturing.

Start by hitting a big crossover. It means that Uncle Black Africa does not understand.

If you don't understand, you have to send a technician.

However, Wang Buan did not have a technician.

What to do?

I had to look for foreign help.

You can't send a robot sprite over, can you?

Then, hit a big cross again.

Transmission accuracy refers to the coordination and accuracy of the relative movement between the end effectors of the machine tool transmission system. This error becomes the transmission error of the transmission chain, such as when the lathe is turning the thread, every rotation of the spindle, the movement of the tool holder should be equal to the lead of the dry thread. But in fact, because there is an error in the transmission chain between the spindle and the tool holder, the actual moving distance of the tool holder and the error are the transmission error of the lathe threaded drive chain. The transmission accuracy is determined by the design of the transmission system, the error of the ideal moving distance, and the manufacturing and assembly accuracy of the transmission parts.

Uncle African Black doesn't even understand the accuracy of movement, let alone the accuracy of transmission.

This is the essence of high-end precision machine tools.

It is also the most important secret.

This part, the technician is not guaranteed.

Why?

The technology involved is profound.

Basically, if there is a problem with the transmission accuracy, it needs to be returned to the factory for adjustment.

Of course, Wang Buan doesn't need to.

He has a lot of confidence in the technology of Cybertron.

Others can even make 50 billion tons of hydraulic presses. Is there a problem with a machine with an accuracy of 1 micron?

That's it......

Not only to sell machine tools, but also to sell technicians and training courses!

Basically, it's about teaching by hand. If necessary, you may also need your own technician to do it yourself. lest Uncle Black often manipulate and break it in two clicks.

Even the technology of Cybertron Planet can't stand up to man-made damage.

But Uncle Black is still a master of sabotage.

Wang Bu'an suddenly sighed that the refusal of advanced Western countries to sell precision machine tools to Africa may not be all because of the technological blockade?

Maybe it's just that I feel that such a good machine tool has been broken by you, and it's really heartbreaking!

"Do you want to reject him?"

"What a dilemma!"

Countless thoughts turned through Wang Buan's mind. He has no experience in such a thing.

It seems that if you have time, you should consult Cheng Kailong.

Perhaps, he could offer some advice.

Fang Yuqing quietly peeked at Wang Buan.

It doesn't seem to be a liar.

It doesn't seem to be acting?

They seem to be seriously discussing the technical details.

She couldn't help but sigh secretly.

In this era, you have to ask for technology to eat soft rice!

That Lu Lingqi is definitely a strong woman. If you want to eat her soft rice, where is it so easy?

Wang Buan also sighed secretly.

When did you have the ability to influence a country's industrial development system?

The machine tool is really an industrial machine!

As long as you want to develop industry, you must use machine tools.

Look at your beliefs.

It's already more than eight million. There is still more than a million shorts.

The arrival of Tau is like getting a hint from God in advance and making a reservation in advance.

The point is, it's a very good start.

What could be more rewarding than building a whole industrial system?

In the future, other countries will only need $15 billion to establish a relatively complete industrial system. Don't ask for help.

This is simply bad news for some Western powers.

All along, they have relied on poor scissors to exploit backward countries.

Industrial products are the largest export profits.

However, once there is a small but complete industrial system, many key industrial products can be produced by themselves.

This is tantamount to cutting off the market of some Western countries.

Do they sit on the wall?

Would they really tolerate such a procurement scheme?

"Mr. Tau, I feel that your procurement plan will be met with great resistance. It may not be successful. Wang Buan was blunt.

"We only talk about the technical stuff. Tau said slowly.

"There is no problem with the technology. There is no problem with the price either. I can provide you with all the machines you need. ”

"Good. Thank you so much, we signed a cooperation intention?"

"Good. ”

Tau immediately took out the papers.

He certainly came prepared. The corresponding documents have long been prepared.

Sign.

Exchange of signatures.

Confirm.

The contract officially came into effect.