Chapter 65 Do It Yourself (Part 1)

"I'm on the news network." Fatty got up early in the morning and was pissed. The other people in the dormitory were bombarded by the fatty last night. When they heard it in the morning, they immediately covered their ears under the covers. .

"Your uncle, why don't you sleep in the morning?" Liu Yang searched for a while at the bedside but couldn't find something suitable and threw it over, so he could only curse: "You just got on the news network with one arm, you fat Arm, go to hell!"

Amidst the sound of protests, Fatty was kicked out of the dormitory, and no one was allowed to sleep well at seven o'clock. He wasn't a student who still had to go to class, so what?

The fat man, who was in a good mood, went straight to the school factory to look for Mr. Liu after eating breakfast. They said before that they would rebuild the old Rheinland machine tool in 1933, and now Guo Tailai is finally going to do it.

"Great." Mr. Liu was also very happy: "I stored several tons of special steel outside five years ago. After five years of wind and sun, it should be able to see the light of day."

It is easy to make a lathe, but it is not so easy to make a precision lathe. It’s not that you can just find a piece of suitable material and make it by hand. The only result of such a hasty start is that the parts made will be inaccurate and seriously even deformed. There is one of the most critical issues, the stress inside the material itself.

If the processing starts before the internal stress is completely released, it will inevitably be deformed afterwards, which is unavoidable.

There are many ways to release the internal stress of the material. Heat treatment is often used, and manual vibration is also used. High-tech and ultrasonic shock vibration are used to optimize the stress or change the direction of the stress, but generally speaking, the release effect is the best. The method is to eliminate internal stress by natural aging, that is, to eliminate it under natural conditions. Of course, this method is also the slowest.

For a long time, it has been impossible to make real high-precision machine tools in China, and sometimes it has something to do with materials. The pace of modern people is too fast, and few people can settle down and spend several years waiting for a round shaft or a guide rail to release the stress. Although heat treatment can quickly eliminate stress, the effect of eliminating stress is not very satisfactory. Low-precision lathes are fine, but high-precision lathes have extremely strict requirements, and the precision of the manufactured things is not enough. This is one of the reasons.

Materials that have been stored for five years are of course the best. Guo Tailai and Mr. Liu didn't care about the materials first, but dismantled the old lathe first. To be honest, the most valuable thing about that old lathe is the bed. The same reason is because of internal stress, the bed of the old lathe has always been the favorite of the lathe machine tool factory. Therefore, the bed still needs to be kept.

All other spare parts have to be remade and replaced. Both Guo Tailai and Mr. Liu were veterans, and soon, with the help of several lathe workers who came to help, they completely dismantled the old lathe.

The drawings of all spare parts do not need to be surveyed and drawn again, and Guo Tailai does not intend to rebuild an old lathe decades ago. With this condition and good materials that have been stored for five years, why not build a more advanced one?

It is impossible to directly build an advanced five-axis machining center. Even if Guo Tailai has this skill, he cannot make the control chip and control system. Therefore, Guo Tailai's plan is to build a high-precision mechanical lathe based on the bed of this old lathe. Well, it's just a lathe, it's unlikely to have other functions.

There are many high-precision lathes in the dream of the future, and Guo Tailai chose the one that is most suitable for the bed of this old lathe. Of course, the bed must go through a series of processing. After all, it is an old model decades ago, and some parts need to be modified to be suitable for the new lathe.

The motor needs to be re-selected, all the things in the gearbox must be redesigned, and other spare parts such as bearing guide rails are the same. Roughly speaking, it is enough for Guo Tailai to work normally for two or three months every day. Excluding the winter vacation, it will be busy enough until April next year. A little bit lazy, I can last until June, when I will be busy with my graduation defense, and then I will have a vacation after graduation, waiting for the start of school in September to start a graduate student.

It's a good plan. Guo Tailai briefly told Mr. Liu about his plan. When Mr. Liu heard that Guo Tailai did not want to build an old lathe but wanted to build a high-precision lathe designed by himself, how could he disagree? The better Guo Tailai behaves, the more face he will have on his face as Guo Tailai's master.

Other parts are easy to talk about. Guo Tailai can make the purely mechanical part by himself, but the motor is not good. In addition to processing, the motor also needs to be wound. However, there is no funding for this aspect yet, and Mr. Liu has no good model suggestions, so he can only go to Zhao Yanyan. Mr. Liu went to apply for funds, and Guo Tai came to find the electric machine.

"Motor?" Zhao Yanyan asked clearly what Guo Tailai was going to do, and after understanding the parameters Guo Tailai needed, he did not refuse: "I asked someone from the company to help you check the model, but do you have the funds?"

This is a project agreed by the department and Professor Wang, and the extra cost must be approved. It is impossible for Zhao Yanyan to directly help Guo Tailai advance funds, and it is impossible for Guo Tailai to pay for it himself, so Zhao Yanyan asked this question.

"Please ask about the model and price first." Guo Tailai said truthfully: "Mr. Liu has already applied for funding, and I don't know how much you can apply for."

"Are you sure you plan to design and manufacture it yourself?" For Guo Tailai, who wanted to design a brand new high-precision lathe by himself, Zhao Yanyan had no doubts about Guo Tailai's design, manufacturing and assembly capabilities after experiencing the high-precision gyroscope.

"Why not?" Guo Tailai wondered why Zhao Yanyan would ask such a question.

"If you plan to do this, then you'd better go through the formal project approval process." Zhao Yanyan pointed out: "You have to take out the design draft first, have it reviewed by experts, and only after you get the feasibility report can you apply for production funds , and then go through the procurement process, and finally do it, and accept it after completion."

"So complicated?" Guo Tailai was shocked. If you really want to go through the process like this, wouldn't it mean that the day lily is cold, and you may not be able to start work after graduation.

"That's why I'm curious!" Zhao Yanyan was really curious: "Aren't you planning to build and assemble all the accessories again? Why did you change the design?"

"I originally planned to use this to practice assembly." Guo Tailai was also a little helpless: "But didn't you make a high-precision top last time? This exercise is dispensable. Instead of just making an original one, it's better to make a new one." .”

"Then why don't you do it yourself and don't need money?" Zhao Yanyan suddenly suggested: "It will be much easier."