Chapter 969 The snipe and the clam fight, and the fisherman wins

"Huh? What's the problem?"

The comrade who raised the question raised the document in his hand and said, "You can read it for yourselves."

Each of these documents was a ministry’s overall recommendation list, and the same name appeared on each of the lists in the documents he had.

"Comrade Gao Zhendong".

This is very difficult to deal with. The recommendations from these ministries and commissions are full of praise for Gao Zhendong, even though the entire text is filled with confusing words like "responsible for XX project", "developed XX technology", "took the lead in completing the research of XX equipment", and there are even more such XX than the results that can be directly seen.

However, one can clearly feel between the lines that the leaders of these ministries and commissions have a very high opinion of Comrade Gao Zhendong.

At the same time, these ministries and commissions all said the same thing: "This person is in the work area of ​​our ministry (commission). Don't worry about where his relationship is. It's for work needs, but the scientific department to which this person belongs must be assigned to us."

Looking at these ministries, the comrades present were in a dilemma.

This is so popular that it doesn't fit anywhere.

The Seventeenth Ministry of Machine Building, the Twelfth Ministry of Machine Building, the Defense Work Committee, the Ministry of Applied Chemistry, the Postal and Communications Committee...

Even the Ministry of Agriculture, the 11th Ministry of Machine Building, the Ministry of Foreign Trade, and the Education and Training Commission are joining in the fun, but they are not blatantly trying to poach people, but they still give solid recommendations.

"It's clear from this that in previous years, the higher-ups had suppressed it for protection. Now, probably because the higher-ups and relevant ministries have loosened their grip, they've all rushed in. It's going to be difficult..."

It's not easy to offend any of them here, and the key is that their reasons are very sufficient. If you look at only one of them, you will feel that it is unscientific not to put this person in their place.

Gao's operation line and the 6011 battle of the th Ministry of Machine Building, as well as a bunch of achievements starting with XX.

The computer science and semiconductors of the 12th Ministry of Machine Building, as well as civilian consumer electronics products and a bunch of professional textbooks currently being used in major universities, and many world firsts.

The Defense Work Committee was completely XX throughout the process, and there was no real evidence to be seen, which made their reasons seem even more sufficient.

The Ministry of Applied Chemistry, on the other hand, didn't even mention XX, but only said that it had made major contributions in important fields, leaving no room for criticism.

The Postal and Communications Commission is quite simple, just five words: program-controlled switching system. You can do whatever you want.

Looking at these recommendation lists, the comrades at the Academy of Science and Technology were overwhelmed.

How to deal with this?
If you say they are qualified, they are definitely qualified. If they are not qualified, then there will be only a few people left in the Faculty of Technical Sciences.

But where to put it? That's a difficult question.

Everyone looked at each other, and suddenly someone started laughing.

"Oh, yes, I have another recommendation form here. I just brought it here. Take a look."

I looked up and saw that it was someone from the Academy of Science and Technology, from the Department of Mathematics, Physics and Chemistry. No wonder he was brought here only now. After all, he was still within the Academy of Science and Technology, so it wasn't too late to bring him here now.

"What are you doing..." The other comrades looked at him in confusion. Why are you, a natural scientist, joining in the fun?

"Take a look and you'll know." The comrade smiled proudly.

A comrade opened it and saw Gao Zhendong was on the list.

The reasons for recommending Comrade Gao Zhendong as the scientific committee member of the Natural Science Mathematics, Physics and Chemistry Division are very strong.

——Theoretical research on lasers and the invention and application of lasers.

"You're just... joining in the fun." Some comrades were at a loss whether to laugh or cry.

But the reason is very sufficient. Laser is definitely high-energy physics, and they have brought the country a world first. This reason is so high and solid that there is no room for doubt.

Moreover, this comrade is not only proficient in theory, but also in application. Putting aside the applications that may be buried in the pile of XX, the original research institute of the Academy of Science and Technology alone is working on a project on laser application under his leadership, and the results are about to be produced. Judging from the current progress and results, it is extremely encouraging.

"Good! This is a good idea!" A comrade from the Academy of Science and Technology clapped his hands on the table. The more he thought about it, the more he felt that this was a brilliant idea.

Difficult? Then don't do it!

You guys are trying to steal my person, right? Stop it, it's ours!
No matter how good your reasons are, they are not as strong as our "world's first". Even if the 12th Ministry of Machine Building has a few world firsts, they are not as high-end as laser and high-energy physics!

Some ministries are "high", some are "hard", ours is both high and hard!

In this way, no ministry will be offended and this comrade will be placed at a high enough level.

"You guys have more ways to come up with theories and think things through, so let's do it!"

Other comrades also agreed, “Yes, yes, this is a good idea.”

"Yes, yes, it would be better for such comrades to be placed in the natural science department of our Academy of Science and Technology."

"That's good. Application is just a technique, and theory is the general outline."

"This is what they call the snipe and the clam fighting, while the fisherman benefits."

"..."

The list was quickly reported to the higher-ups. A leader looked at the list and laughed when he saw Gao Zhendong: "The Academy of Science and Technology is really cutting off the source of trouble, hahaha. Well, this comrade is just like that, not bad."
-
Although Gao Zhendong himself has decided on this matter, there is still some time before it is announced. There is naturally no controversy about Gao Zhendong's situation, but there are still things to discuss about other things.

However, Gao Zhendong didn't know about this. He was looking at a machine tool in front of him.

"Chief Engineer Gao, the comrades at Guangyang Factory have made the absolute multi-turn encoder you taught them. They have been installed and tested, and the results are very good, but we have encountered a new problem."

"Oh? What's a new problem?" Looking at the crackling machine tool, as soon as a steel turning tool passed by, the iron chips rolled and immediately turned blue.

This seems to be a bit too big? Which operator programmed this?
While Gao Zhendong was thinking about these unreliable things in his mind, he was listening to the reports from his comrades.

"It is now clear that at least the transmission accuracy of the reducer is not enough, which leads to the low accuracy of the final workpiece."

There are many places where transmission is used on machine tools, such as spindle, rotation, feed...

Gao Zhendong thought for a moment and asked, "Is it just the transmission? Is there no problem with the motor?"

For machine tools, if you want to precisely control factors such as feed amount, the motor responsible for this quantity should first be precisely controllable.

"The motors we are using now are high-precision stepper motors imported from Gaul. After deceleration, if there is no problem with the deceleration transmission mechanism, it can meet the requirements according to theoretical calculations. However, the deceleration transmission mechanism itself is not precise enough, and we are not sure whether there is any problem after the stepper motor is installed."

The servo motor has not been developed yet, so the related equipment we have now is the stepper motor. Fortunately, we have the Gallic Chicken channel, and the performance and parameters of the stepper motors we have are not bad.

Gao Zhendong was a little puzzled: "The motion control accuracy of the lithography machine is already very high, why is it not working on the machine tool?"

Old masters like Yi Zhonghai know this: "The lithography machine can be adjusted, and there are positioning marks on the mask, so the purpose can be achieved through repeated testing and adjustment. But the machine tool does not have this opportunity. Once the cut is made, there is no way to adjust it even if you want to."

Gao Zhendong suddenly realized, oh, everything is fine if the knife is not used, but it will be another matter if the knife is used.

He thought about it and realized that he was not familiar with the transmission of machine tools, but he did know some precision transmission devices, which he had come into contact with when he was working on robots with his mentor. He didn't know if he could use them.

"First of all, what kind of transmission do you need?"

"Parameters such as transmission accuracy, backlash, transmission error, and lost motion must be good. There are no too high requirements for transmission efficiency, starting torque, etc. The transmission ratio should be larger. The load capacity is not certain. Some requirements are high and some are small. However, the overall requirements for use on machine tools are not particularly high. As for dynamic characteristics, we can't take care of those now." A collaborative comrade from the 11th Ministry of Machine Building reported.

"What kind of reducer are you using now?"

"High-precision lead screws and planetary reducers. As for low-precision ones, there is no problem with them. The main problem is still with the planetary reducer."

Gao Zhendong looked at the parameters of their planetary reducer and was happy. Hey, I actually know a little bit about this thing. It just so happens that it can replace the functions of the planetary gear reducer. Thanks to the gift of the robot.

Gao Zhendong recalled it in his mind. Well, what he remembered was enough. At least he could explain things clearly to others.

He pretended to think for a while. The comrades next to him did not dare to disturb him and turned off the machine tool and waited.

"There are two methods. One has higher precision but lower load capacity and has very high requirements for materials. The other has higher load capacity but lower precision. However, it is much stronger than what you are using now, but it also has certain requirements for processing. Which one do you choose?"

Have you figured out a solution? No, Mr. Gao, do we still need to choose? We want them all!
"Mr. Gao, just tell us everything, we will choose as we use it, hehe." The young people from the Third Factory knew that Gao Zhendong was not the kind of person who would treasure what he had, so they spoke in a relaxed and lively manner.

"Uh...that's right." Gao Zhendong felt that he had asked a stupid question. Nowadays, among the comrades working in technology, who wouldn't have his eyes light up when seeing new technology?

Gao Zhendong turned around and drew a picture on the blackboard next to the machine tool. This is the test workshop, and it has everything.

This thing looks like a gear ring on the outside and a gear on the inside. There is a gap between the two and there is no direct contact.

"Eh? Mr. Gao may have drawn the gear wrong. The number of teeth on the gear doesn't match. It has two fewer teeth than the outer ring gear."

"Shh, this is a diagram. It doesn't matter if there are two more or two less teeth."

"That's not right. This thing can't be used. Is it that the gears are rolling along the gear ring? Then the shaft in the middle is not rotating, but rotating in a circle. This is useless."

Gao Zhendong didn't care about everyone's questions. He patted the chalk dust on his hands and said, "This is the first type, the harmonic reducer."

(End of this chapter)