The pulse motor that Muyang intends to study actually refers to the stepper motor and the servo motor, which are controlled by pulse signals.

Servo motors are divided into AC servos and DC servos, among which AC servos are divided into synchronous motors and asynchronous motors.

The permanent magnet synchronous motor produced by the company is actually a kind of synchronous AC servo motor. The rotor is not a coil or an induction material, but a permanent magnet.

Muyang intends to study CNC machine tools applied to 3 printing. There are many parts on CNC machine tools that need to use motors, such as spindles, tool holders, feed shafts, etc.

All the spindles use AC asynchronous motors, stepper motors for low-end CNC machine tools, and servo motors for medium and high-end CNC machine tools;

The feed shaft can use AC synchronous servo motor, that is, the company's permanent magnet synchronous motor can also be used.

The motor is a very complex thing. Muyang has sorted out the positioning of the company's CNC machine tools to figure out what type, how much power, maximum speed, torque, etc. are needed, but there are still many other tasks.

It needs to be done,

Studying this motor is also very tiring. Sitting in the office for a long time is also boring. I stood up and glanced at the arowana and two golden arowanas in the fish tank, and took out the feed to feed them.

You need to keep a few fish, that is, one, three, five, seven, and a maximum of seven fish in a fish tank.

If you keep a lot of fish, it is estimated that there will be fish killed by fighting every day. This is not just a problem of lack of oxygen.

Kunlong is worthless, and the most striking is the dragon fish. The better the color, the purer and the bigger the size, the more valuable it is.

This kind of knowledge was told to him by a fish farming employee. Mu Yang didn't understand it very well, and he didn't know whether it was true or not.

I saw-Shuiyu, he walked out of the office and planned to go to other offices for a walk.

A few minutes later, I happened to pass by a training classroom, and saw that an engineer was training newcomers, and they were talking about the knowledge of electric motors, which was just beginning.

There are many types of training in the company. Some newcomers can participate in training according to their own preferences, but some trainings must be attended if they are related to their profession.

After the training, I still have to take the exam. This is the most headache for newcomers.

Of course, it is of great benefit for them to learn practical knowledge,

The P-choice made by the training teacher has to be reviewed by experts. It is not a perfunctory matter, and the time of the newcomer is also precious.

These training materials should be formed into standard documents and stored in the company's database. During the annual training, they can be taken out for training, which saves a lot of time for the training teachers.

The training teachers are generally senior engineers, and the expert lectures are compared with Zhao Shao.

Mu Yang stood quietly at the back door of the training hub room, a little curious about how the training teacher gave lectures,

The forty-year-old training teacher didn't notice Mu Yang outside the back door, he said passionately: ^ "My colleagues, my name is Chen Fangtong, I belong to the senior engineer of the Automotive Research Institute.

The company's permanent magnet synchronous motor research and development,

In 200, I graduated from Shencheng Jiaotong University with a master's degree in automation. I have been with the company for more than a year. I am very happy to work with you.

Maybe, in this classroom, dozens of colleagues, maybe there are my alumni,

However, in your Xinghai Group, it is absolutely necessary to engage in some kind of school contempt chain, but to talk about teamwork. Xiaojia should put aside their education, qualifications, school and ability, and you only talk about the public =

contribution,

No ability, but whether it has contributed to the company, it is also useful.

Incompetent, whether it is to do things, or to be like front-line workers, we directly create value for the company,

Okay, enough nonsense,

The content of that class is mainly about servo motors and stepper motors, and it is also an important research project for your company:

After talking about that knowledge point, you first ask Xiaojia the most complicated question, what is a motor? "

Little y and young rookies understand, that problem is too complicated,

For Chen Fangfeng, that question actually played a role in adjusting the atmosphere of the lecture, and it was a question for asking.

Chen Fangtong glanced at the newcomer on the stage and answered, picked up a bottle of mineral water, opened the bottle cap and took a sip of water, then asked and answered by himself,

"From an inside point of view, motors are divided into motors and generators.

Electric motors convert electrical energy into mechanical energy, while generators convert cold energy and water energy into mechanical energy first, and then convert mechanical energy into electrical energy.

Have you learned physics well? "

After the training teacher finished talking about that, very few people outside the classroom laughed.

You may even ask, what is electricity? What is a machine?

"You feel most heard of pulse motors, stepper motors, servo motors, DC motors, AC motors, asynchronous motors, permanent magnet synchronous motors, constant speed motors, eight-phase asynchronous motors, etc.

Chaos, we have nothing to do with it. If we really want to talk about it in a sloppy way, it is relatively simple. It is estimated that very few colleagues understand it. It is very unusual.

They understand what you're going to teach next,"

Among the newcomers on the stage, not many people really understand electric motors. It means that I, even Mu Yang in later generations, understands stepping motors and servo motors.

Of course, Mu Yang is now an expert in that area, of course he understands that,

That Chen Fangtong, started with the most complicated knowledge first, then talked about the separation of feces, and felt that the knowledge points of the small family were the most sorted out, which shows that my thinking is very turbid.

Chen Fangtong talked eloquently: "According to the classification of power sources, motors can be divided into DC motors and AC motors;

According to the structure and working principle, the motor can be divided into asynchronous motor and synchronous motor according to the structure and working principle. Synchronous motors can also be divided into permanent magnet synchronous motors, reluctance synchronous motors and hysteresis synchronous motors

machine. Asynchronous motors can be divided into induction motors and AC commutator motors.

The technical level of your company's permanent magnet synchronous motor has not yet reached the world's first, and it is beyond the international counterparts.

The cold-selling Hummer EV is not equipped with your company's permanent magnet synchronous motor. Xiaojia see, that is not a photo. After the lecture is over, you can take Xiaojia to the automation laboratory to see, your company's

How magnetic synchronous motors are produced.

Of course, no photography is allowed!

It is also forbidden to pass on the inside, the Human Resources Department should have told them about the confidentiality regulations,"

"Wow! Your company is not a bully!" The newcomers exclaimed, carefully looking at the photo of the motor under the screen.

"The Personnel Commissioner has spoken about confidentiality, for your attention,"

Not a single newcomer raised his hand, Gao Jiechen nodded when he saw the front: "Please speak!"

Rejected by Chen Fangtong, the newcomer who raised his hand asked, "Mr. Chen, may I ask you, you are not curious, how much does your company's permanent magnet synchronous motor sell for?"

"Then you are too vague. It depends on the power and model. According to the model of Hummer EV, I heard that it is sold to Hummer for 70,000 yuan. It must be sold to other car companies.

Is it the first to retire if it is sold, or is it sold to a competitor?

Of course, your company's Hummer EV has no competition. "

Chen Fangtong said before thinking a little, "If they are not interested, they can't return to the Automotive Research Institute until the trial period expires. They say that they will never have the opportunity to visit the Haili factory, or even study and work."

Chen Fangtong's words caused a lot of discussion among the newcomers.

Haha, no, even if you don't have money, you will sell it to Lao Li, even if you sell it, it will be inferior. Your company is not the best! "

"The Hummer EV is so awesome, the bullock cart of your dreams! You know you can afford it in that lifetime."

"The chairman said that the Hummer Ev is ready for localization because he knows the price is not much,"

"If it's cheap to stay, people who feel the most can afford it. Like Teacher Chen, who doesn't have a year-end dividend, he says it's a set-up and can't afford it."

^ "Yes, Mr. Chen, you must buy the company's car, there is no discount? How much can you discount?" None of the newcomers raised their hands and asked, my words are very few> Colleagues are curious,

Yes, the company produces its own cars, and the company sells it to its own employees. There should be no discounts. This Hummer EV is really beautiful, but it is too shocking. It is affordable.

Gao Jiechen smiled and said, "To be honest, you also want to own a Hummer EV. As for whether there is no discount for company employees to buy company cars, the company has not disclosed any news, even if not, t

It will be limited, and it is possible to sell it to make money.

But the Hummer EV is too shocking, and the company offers more discounts, it is still a shock to the people who feel the most.

Of course, you still have no chance to afford it. "

In the interaction of Chen Fangtong, the newcomers are very proud,

We can't show off after classmates and relatives and friends: you are an employee of Xinghai Group, and Hummer EV is not produced by your company.

Chen Fangtong knocked on the table and continued: ^ "Okay, the bragging mode is over. In the past, it was possible to continue to compete with others, and it was up to the small family to work together.

you speak,

According to the start and operation mode, the feces are divided into one...

Classification by use Motors can be divided into drive motors and control motors according to their uses.

The control motor is divided into stepper motor and servo motor, etc., that is also the key content you will talk about next..."

"Speaking of that, you have to say that your country's servo motors are in the current situation, isn't it?

very good!

Very optimistic, can not say that the whole army is wiped out!

Big is big, small is small!

How to understand, high-power servo motors, large-scale is OK, generally long, such as the 200 and 400W servo motors commonly used in heavy-duty robots, and the A6 in Panasonic, which uses Yaskawa from the island country

Machine, people's sense of shortness is the most,

In contrast, domestic servo motors are generally long and smooth in appearance.

It's not to say that with the same power, the volume you make is smaller than others, and it is heavy-duty and large-scale:

The size is too small, if it affects the posture of the robot, if it stays silent, who will use it!

It's not big, it's big!

The small refers to the little finger. According to the market share of the domestic servo motor El manufacturers, the small y is imitated by the RI series servo motor design. The power is less than 3kw, and the medium and high power are less.

still small.

And whether there is a 5.5-15kW medium and small power servo, which leads to the lack of application under some equipment, because there is a small power servo motor and drive matching, the whole system is abandoned,

That is the tragedy of your country, colleagues.

The domestic manufacturers who can solve that problem will count on you Xinghai Group, and it is very unlikely that they will participate in the retirement of that important task.

After Chen Fangtong talked about the current situation of domestic servo motors, the newcomers were very lighthearted and felt a lot of pressure.

Yes, it is certain that Xinghai Group has no ability to break the domestic monopoly. Which domestic company has the most sense?

Is there any!

"Mr. Chen, what is the difference between your country's servo motors and Lao Li's?"

Chen Fangfeng said: "First of all, the basic technology has nothing to do with the market size. Last year, the market size of domestic servo motors in your country was about 3 billion yuan.

motor and exit servo motor}, which grows at a growth rate of about 15% every year.

The market size is small, and I don't have the confidence to compete with Laoli. I think there is something to be done. It's better to invest in real estate to make more money, right?

The market size is small, which makes it very difficult to create an industrial chain, and the result is that the motor is the motor, the coder is the coder, and the driver is the driver. Is there any synergy, which leads to the difference between the servo motor and the motor?

The overall performance of the dynamic system should be well done!

For example, your company's Qibao welding machine is very powerful, the technology level is the first in the world, and the price is cheap, the gI is better than the next, and the Panasonic company has been driven away, but why can the &I continue to be in China

save it?

Do you have any robots? gI sells arc welding robots, equipped with its own seven-guarantee welding machine, and the overall compatibility is low.

I'm sure you don't have your own robot, and you will be equipped with your own seven-guarantee welding machine, and you don't have your own control system and operating system, etc. If there is any way out,

Now that you are working on servo motors, the lower level of the company must know, and it is estimated that you are going to sleep."

When the newcomers heard what Chen Fangtong said, they couldn't help but laugh.

As soon as Xinghai Group made a big move, its competitors were quite shaken.

You are bullshit!

Chen Fangtongcha said, "Your country's servo motors are poor, followed by the lack of basic research on servo systems, including absolute encoder technology, industrialized manufacturing technology of low-end motors, and sudden changes in production processes.

The practicability verification of performance indicators and the formulation of assessment standards,

The manufacturer does it, but you have to do it, that's not the responsibility of the enterprise.

It is necessary for you to engage in real estate, this is too LW, you are a low-tech enterprise,

The importance of the servo motor is to say less,

Moreover, the international market is very small, and your Xinghai Group has no confidence to compete with Lao Li. When that time comes, Lao Li will tremble."

Haha, shiver! "

Chen Fangtong's humorous language attracted giggles from the newcomers.

Next, Gao Jiechen explained his own P-choice, whether there are too few details, and the explanation is relatively shallow, let us first understand it briefly.

The newcomers on the stage sighed from time to time, "Fuck, that's what happened". If you take notes, if you take out your mobile phone to take a picture first, you plan to go back and organize it properly.

Suddenly, Chen Fangtong found that the chairman was standing outside the front door. He was smart and said hello:

"Fuck, your chairman is here too. I'm also an expert in that field. Welcome to the chairman. What if the chairman wants to say a few words?"

When I shouted like that, the newcomers looked forward,

Sure enough, it's really the chairman.

The newcomer who sat in the front row and listened to the class without any distractions was scared out of his mind. Fortunately, he did not doze off. If he did, he would be embarrassed to death.

The chairman's eyes feel like a death stare!

Mu Yang left the training room with a faint smile on his face, and said while applauding: "Chen Gong speaks very well, and the atmosphere is very active. The training materials are all the dry goods and experience accumulated by the trainers.

This is what you can find offline and in books. Small families must learn less, and if you don't understand, you must humbly ask the training teachers for less advice.

You said so little, they should continue the training, it is to disturb the rest,"

Before Mu Yang finished speaking, he turned around and left the training room and closed the door.

Xiaojia breathed a sigh of relief when he saw the chairman leaving. Even the training instructor Gao Jiechen did the same. Did you feel the most?

In fact, no newcomer noticed that the chairman was standing outside the front door just now, but did he remind him and me to continue to listen carefully to the class and take notes,

The front door creaked again, and Xiaojia was startled when he saw the chairman pushed open the door and walked back.

Is it not gone yet?

Is it okay to go back?

Gao Jiechen plans to continue lecturing.

^ "By the way, I didn't ask any employee just now, if buying the company's car can be discounted, of course not, the specific discount can be more or less, and we will go back and discuss it before localization. Well, I have my own business, so disturb them.

trained,"

Before Mu Yang finished speaking, he closed the front door and left directly.

The newcomers who went to get out of class, the newcomers who were not dozing off, immediately refreshed 120% of the class,

We are really afraid that one day, dozing off will be suddenly caught by the chairman, and then be fired from the company.

The chairman's routine is too deep,

Mu Yang went back to his office and continued to study the motor. I will start with the servo motor.

Chen Fangtong is wrong. Motors, encoders, and drive systems have no material yet, so they all have to be studied.

The trends that can be clearly felt in the field of motion control transmission: the structure of the motor is getting more and more compact, the dynamic performance is getting lower and the power range is smaller, the motor model is wider, and the use of F

mechanical integration solutions,

Under the robot, the motor is required to develop in the direction of compactness. In the field of dirty air, the requirements are more stringent. In terms of power variation and structural weakness requirements, the heavier the stay, the tighter it is:

the better,

However, additive technology ~www.mtlnovel.com~ cannot solve the problem of heavy equipment, and it is also one of the best ways. In addition, it is not to find low-weakness heavy-density materials to replace, such as graphite vermicular materials.

Graphite vermicular material is a long way to go, it is difficult to mass-produce, and the price will go up, so it can be widely used.

Mu Yang has studied graphite vermicular materials and feels that now is the best time.

Just like the new 3D printing technology LDM]1 I bought from the achievement point store, I am afraid that I will manufacture LDM]1 equipment. Theoretically, the mechanical properties of 3D materials reach the level of forgings.

Reaching the level of forgings is the most technological change, but forgings are not 'v eighty-four, etc.

Therefore, Muyang does not have too little hope for the LDM]1 well, but it can help me solve very few problems, such as the casing of the motor, the inner casing of the battery pack and other structural parts that need to be heavy, all of which cannot be used. 3D play

Printing technology solves, heavier and weaker.

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