Chapter 33： Do it yourself

"I went to the news network." The fat man got up early in the morning, and several other people in the dormitory were bombarded by the fat man last night. When they heard it in the morning, they immediately caught their ears in the bed. .

"Your grandfather, what did you not sleep in the morning?" Liu Yang looked for a moment at the bed and didn't find the right thing to throw it over. He could only yell: "You just have an arm on the news network, you are fat." Arm, go to hell!"

In a protest, the fat man was driven out of the dormitory, and it was not at seven o'clock that people would not sleep well. It was not a schoolmate who had to go to class. As for?

The hearty fat man, after eating breakfast, went straight to the school to find Liu Lao. They had previously said that they would rebuild the 19-year-old Rhein old machine tool. Now Guo Tailai is finally going to do it.

"Great." Liu Lao is also very happy: "I have stored a few tons of special steel outside five years ago. It has been blowing for five years and should be able to see the day."

It's easy to make a lathe, but it's not that easy to make a sophisticated lathe. It’s not that you can find a suitable piece of material and you can make it. The only result of rushing the horse is that the made parts will be inaccurate or even deformed, which is irreparable because of the high processing precision. There is one of the most critical issues, the internal stress of the material itself.

When the internal stress is not completely released, the processing starts, and then it is inevitably deformed, which is inevitable.

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

It has not been possible to make true high-precision machine tools for a long time in the country, and sometimes it has something to do with materials. Modern people are too fast-paced, and few people can sink their minds and wait a few years for a circular shaft or a rail to release stress. Although the heat treatment can quickly eliminate the stress, the elimination effect is not very satisfactory, the low precision is good, the high precision lathe is what is required, the requirements are extremely strict, and the precision of the created things is insufficient, which is one of the reasons.

It’s best to put the materials for five years. Guo Tailai and Liu Laoxian did not take care of the material, but first dismantled the old lathe. To be honest, the old lathe, the most valuable is the bed. The reason is the same 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 has to be retained.

All other spare parts have to be reworked and replaced. Guo Tailai or Liu Lao is a veteran. Soon, with the help of a few helpers who came over to help, the old lathe was completely dismantled.

The drawings of all spare parts do not need to be re-mapped, and Guo Tailai does not intend to rebuild an old lathe decades ago. With this condition, there are good materials for five years. Why not make a more advanced one?

It is impossible to directly build an advanced five-axis machining center. Even if Guo Tailai has this craft, he can't make control of the 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, just a lathe, it's unlikely that there are other features.

There are many high-precision lathes in the dream of the future, and Guo Tailai chose one that best fits 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. Some places need to be modified to suit the new lathe.

The motor should be re-selected, and all the things in the gearbox must be redesigned. The other bearing guides and other spare parts are also the same. It is enough to calculate enough for Guo Tailai to work normally for two or three months. Get rid of the winter vacation, enough to be busy until April next year. Slightly lazy, can stay until June, when it is just busy graduation, and then graduated from school, waiting for graduate students to start school in September.

This plan is very good. Guo Tailai simply talked with Liu Lao about his plans. When Liu Lao heard that Guo Tailai did not want to build an old lathe but wanted to make a high-precision lathe of his own design, where would he disagree? Guo Tailai’s performance is better. As the master of Guo Tailai, his face will have more face.

Other parts are good to say that Guo Tailai, a purely mechanical part, can build it himself, but the motor can't, the motor has to be wounded in addition to processing. Guo Tailai hasn't learned it, so he can only find a motor that is available on the market. And the funding for this has not yet, Liu Lao does not have too good model recommendations, can only go to Zhao Wei. Liu Lao went to apply for funds, Guo Tailai went to find the motor.

"Motor?" Zhao Wei asked what Guo Tailai had to do, and after understanding the parameters that Guo Tailai needed, he did not refuse: "I let the company's people help you check the model, but do you have any money?"

This is the project that the department and Professor Wang agreed to. The extra cost is definitely to be approved. Zhao Wei is not likely to directly help Guo Tailai to pay for it. Guo Tailai himself is not likely to pay for it, so Zhao Wei will have this question.

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

"Are you sure you want to design your own?" For Guo Tai, he had to design a new high-precision lathe. Zhao Wei had no doubt about Guo Tailai's design and manufacturing assembly ability after experiencing the high-precision gyro.

“Why not?” Guo Tailai wondered how Zhao Wei would ask such a question.

"If you are planning to do this, then you are better off the formal project approval process." Zhao Wei pointed out: "You must first come up with the design draft, and the experts will review it once and get the feasibility report before you can apply for production funding. Then go through the procurement process and finally start again, after the completion of the acceptance."

"So complicated?" Guo Tailai was shocked. If you really want to go through the process, then it’s not that the daylily is cold, and you may not be able to start work if you graduate.

“So I am curious!” Zhao Wei is really curious: “You are not planning to rebuild all the accessories once and assemble them? How have you changed the design?”

"I originally planned to use this practice to assemble." Guo Tailai is also a bit helpless: "But wasn't it a high-precision gyro last time? This exercise is optional. Instead of just getting it, it's better to be a new one." ""

"Then why don't you do it yourself, don't pay?" Zhao Yixu's suggestion: "This will be much simpler."