The Red Era, the Opening University Speech

Chapter 317: After praising it for a long time, he didn't say how accurate it was
Tang Yanjie saw two figures near the cafeteria in the distance.

The experience is still a bit lacking.

If he really caught Professor Wan and others in the workshop first, they would probably be able to escape.

He trotted forward and looked at Professor Wan who had disappeared in the distance.

If he chases him, he will definitely catch up.

But after seeing Li Mu, he felt there was no need to chase him, so he stopped and asked, "Who was that just now?"

"I said he got up to buy breakfast and then went back to rest. Do you believe it?" Li Mu asked back.

Tang Yanjie said:

"If he hadn't run away, I'd be willing to believe it."

"But now, if you don't want to tell me, then go back and rest for half a day."

"Although the research of each research group has not been without problems, I think we still need to manage discipline well first so that we can carry out research work scientifically, reasonably and quickly."

His tone was serious.

Obviously not kidding.

"It's Professor Wan from Beijing Institute of Technology. But it should be his first offense. I think he can be given a lighter sentence." Li Mu thought about it and sold the person out directly.

A dead Taoist friend is not a poor Taoist.

Sacrificing Professor Wan for the happiness of everyone is a good deal.

Tang Yanjie was slightly surprised to see him give up the person so quickly and efficiently.

Cai Dao:

"It is precisely because this is a first offense that we must treat it severely and strictly."

"Otherwise, how can we let those who are ready to make a move take this as a warning?"

"Okay, don't worry about this, just leave it to me."

After saying that, he hurried away and headed straight for the dormitory.

Judging from the situation, Professor Wan will have to take a break for at least two days this time.

"After dinner, I'll go talk to the people in their group about how to proceed with the next step of research." Li Mu thought secretly in his heart.

Originally, he had not intended to intervene so quickly.

I just looked at the design drawings, and everyone’s ideas are correct, it just takes some time to solve.

But now that the team leader Professor Wan has been arrested, it will definitely affect the research progress.

……

Finished breakfast.

It was just after 7 o'clock.

All the researchers washed up one after another and came out of the dormitory to the cafeteria.

When they meet Li Mu, everyone will stop and say hello.

He would also respond with a smile and a nod.

Of course, nodding is not out of indifference.

It was because there were so many people who greeted him.

Everyone only exchanged a few words of greeting, and I'm afraid I would go straight there every morning.

……

Came to the workpiece rotation and positioning device development team.

Li Mu hasn't entered the workshop yet.

Then I heard a sigh from inside.

When I walked in, I saw it as expected.

Not only Professor Wan, but three or four other people are missing.

I guess he didn't rest immediately after returning.

Tang Yanjie, who was rushed over, was caught and made a "typical example".

He raised his hand and knocked twice on the iron door next to him, pretending not to know: "Hey, why do you all look so dejected? Where's Professor Wan?"

"Consultant Li." Hearing his question.

The experts and professors inside stood up and said, "Advisor Li, please go and speak to Professor Wan. Three days is too long to not be able to participate in the research!"

"It is indeed very long, but considering the overall progress of the research, I think it is very necessary." Li Mu refused without thinking.

Seeing that everyone still wanted to plead, he continued:

"Okay, everyone, be quiet. Our top priority now is to complete the research."

"I looked at your design drawings this morning and gained a certain understanding of the problems you encountered. I also have some ideas."

"Professor Shen, please tell us more in detail so that we can discuss it together."

He said at the end.

Everyone's expressions also came back to their senses from their previous dejection.

Yes, there is nothing more important than research.

The person who was called out was the deputy team leader of the workpiece rotation and positioning device development team.

He immediately said:

"Consultant Li, the problem we are facing now is how to design a suitable fixture."

"Positioning and clamping the workpiece is a key technical difficulty. It is necessary to ensure that the workpiece is accurately fixed on the machine tool to ensure that it does not move or vibrate during the processing."

"Our initial idea is to design appropriate fixture models one by one according to the shape of the workpiece and the processing requirements..."

He stated the problem briefly and concisely.

The process of fixture design should first clarify the processing requirements of the workpiece, and then discuss the positioning and clamping solutions.

Then consider the tool setting device and finally determine the specific structure of the fixture.

This process is all too familiar to a group of mechanical engineering experts and professors.

However, how to complete the fixture design of the 3+2-axis CNC milling machine is quite difficult for them.

Li Mu thought for a moment and said:
"In fact, this problem is not complicated. Take the processing of water pump impellers as an example: first determine the positioning plan, place the processed impeller bottom surface on a large circular positioning plate, and position it with a large plane to eliminate the rotational freedom in the X and Y directions and the movement freedom in the Z direction."

“Then a dowel pin is used to fit into a hole in the impeller, eliminating the X and Y degrees of freedom. Two slotted clamps are used to clamp the blades in two directions and secure them to the dowel plate, eliminating the rotational freedom in the Z direction.”

"Then there is the clamping scheme. The workpiece is positioned with the center hole and bottom surface on the end surface of the locating pin and the locating plate. The nut is rotated to move the two pressure plates through the lever..."

……

He was providing examples.

It also directly points out the core issues of fixture design - positioning stability, clamping mechanism rigidity and the use of cutting.

These three points are the key to ensuring that the fixture design is scientific and reasonable.

"The characteristics of CNC machining place strict demands on fixtures. We need to select suitable parts for processing based on part drawings and blanks, and consider factors such as material type, complexity of part contour shape, size, etc..." Li Mu finally extended the discussion a little further.

Putting forward the requirements is equivalent to giving everyone a clear direction to work towards.

This is the most precious thing for scientific research.

Many experts and professors who had never worked with Li Mu couldn't help but feel a sense of relief at this moment.

They didn't even know.

Scientific research is such an easy and enjoyable thing

Professor Shen clapped his hands vigorously and said, "Advisor Li, it really is you who solved the problem that has been bothering us in such a short time!"

"Yes, you are amazing."

"If only you could stay here the whole time, our research speed would definitely be greatly accelerated!"

……

Everyone started to praise him in various ways.

Only then did they realize how amazing the value of Li Mu's winning of the only first prize in the country's highest science and technology award was.

"Stop, stop. Let's start our research quickly. I can't stay here for long. I have to rush to the next research group. If you have any questions, come to me." Li Mu quickly stretched out his hand to signal.

After saying that, he turned and left.

Continue to go to other research and development teams to provide guidance.

……

The situation of the programming group, main transmission system development group and feed system development group is relatively smooth.

Li Mu went there and found no problems.

So he focused his energy on the auxiliary device development group.

The research here includes hydraulics, pneumatics, lubrication, cooling systems, chip removal, protection, etc., providing various auxiliary functions for breakdown.

The most difficult part is the cooling system.

...In a small meeting room made up of several tables.

Professor Peng, the leader of the auxiliary device development team and a professor at PBC Institute of Technology, said:
"It is necessary to ensure that the cooling system works continuously for 24 hours without stopping in order to ensure the consistency of the machining accuracy of the machine tool during long-term operation."

"The working stability of the electrical and control systems and the service life of the machine tools also require a more complete design."

"Although the solution proposed by Consultant Li has pointed out a general direction for us, we cannot rely on Consultant Li to solve everything..."

……

Li Mu sitting on a bench.

While drinking tea, he patiently listened to the experts and professors around him express their opinions.

From time to time, he would take a pen and take notes in his notebook.

Even if you already have the answer.

But he would not deny the efforts of these scientists.

Wait until everyone has finished speaking.

He slowly stood up and said:

“The discussion you just had gave me a lot of inspiration.”

"In fact, if you want to develop a suitable cooling system, you have to start from these five aspects."

"First, it is the design of the coolant pump. Professor Xu's idea just now coincides with mine. We can use a multi-stage pump design with multiple impellers in the pump body..."

……

Li Mu slowly spoke out the research plan that was formed by combining everyone's ideas with the information he had.

Sometimes the opinions of some experts and professors are only mentioned briefly, but they happen to hit the key points of the research.

He talked a lot about it and praised it repeatedly.

So much so that everyone had an illusion in their hearts: "Hey, did I say that? When did I become so powerful?"

After solving the problems of the auxiliary device development team.

Li Mu didn't stay long.

Leaving behind everyone with a look of disbelief, feeling as if they had become "stronger".

He continued to visit other research groups.

The whole person is like a spinning top, spinning at high speed 24 hours a day.

Until nightfall.

Only at Tang Yanjie's reminder did he return to the dormitory of the machine tool factory to rest.

With the previous experience of Professor Wan and others as a lesson, the experts and professors at this time did not dare to go any further.

When the time comes, I will return to the dormitory obediently.

At most we would discuss for a while and then fall into a deep sleep.

In addition to research.

The topics they discussed focused more on Li Mu.

From "fragile and frail" to "how strong is his scientific research ability".

……

A month passed slowly.

Entering the hot summer.

Inside the Kyoto First Machine Tool Plant, the research atmosphere was even more tense.

Everyone is very busy.

At this time, Li Mu was free.

He is learning the experience of hand-rubbing parts from eight teams consisting of 80 eighth-level workers.

At first, the masters didn’t quite believe it.

A scientist is actually willing to make parts in a workshop full of oil and dirt.

But later on, Li Mu came over every day, covered in dust and smell of engine oil in order to learn the craft.

They believed it completely.

Moreover, as Li Mu's craftsmanship improved, their sense of identification and gratitude also grew day by day.

……

In the workshop.

Under the watchful eyes of many masters.

Li Mu's hands were controlling the machine tool, turning a part of a sliding ram.

His speed is not that fast.

But it is quite stable.

I saw the old masters standing by nodding their heads.

Even Tang Yanjie who walked in from the door.

Seeing this scene, everyone couldn't help but stop.

When Li Mu had finished turning the parts and handed them to the old masters for inspection, he walked forward and asked curiously:
"How's it going? Was it successful?"

“It’s a little bit inferior to ours, but it’s already at the level of a sixth-level worker, and it can be fully used on a 3+2-axis CNC milling machine.” Uncle Zhong, who was holding the ram, was the first to grab the part.

With decades of experience, he can tell whether a product is qualified after just one mock test.

After looking at the parts, the other masters also praised the product:
"Advisor Li, with your talent, I think if you study for a few more months, you will be able to surpass us!"

"Yes, it's amazing. Otherwise, how could he be a scientist? This is his ability. He can learn anything quickly."

"We originally thought that you, Consultant Li, were just playing around on a whim, but we didn't expect you to be able to do this. It's impossible not to admire you!"

……

Listen to the crowd's admiration.

Li Mu smiled and bowed, saying:

"Masters, please stop flattering me. I don't know my level well enough."

"It will take at least ten or eight years to catch up with your skills."

"I just want to learn more about the process of machining parts on our lathes so that I can have a better idea of ​​it in the future."

He wasn't being modest.

The precision requirements for the parts we just made are not very high.

But everyone praised it for a long time, but no one said what the accuracy was.

If you don't understand this, you are a fool.

"Haha, no matter what, your talent is quite amazing." Tang Yanjie praised him from the side.

Then he straightened his expression and said:

"Okay, let's not talk about this for now. I'm here to tell you a good news."

"Just now, several research and development teams including the main transmission system research and development team, the feed system research and development team, and the workpiece rotation and positioning device research and development team of the 3+2 axis CNC milling machine have received good news."

"The parts they are responsible for have all been completed, and they can immediately enter the final test experiment!"

Hear the news.

Li Mu was not surprised, and it could even be said that he had expected it.

If not for this, he wouldn't have the leisure to come here to buy auto parts.

"What are we waiting for, Dean Tang, let's start the final test right away!" Li Mu took off the gloves on his hands, and there was a hint of excitement in his eyes.

The final assembly and test experiment is not complicated.

There may be minor issues.

But he is sure that it will not affect the overall usage.

Tang Yanjie held him back and said, "Don't worry, come with me first."

As he said that, he pulled Li Mu into an empty office.

……

Close the door.

Tang Yanjie first asked Li Mu to sit on the sofa beside him.

Then he made him a cup of tea and said:

"This final test experiment is very important."

"Several leaders from above will come over to watch."

(End of this chapter)