Chapter 33: Ultra-Precision Division
After Shen Danqing came back from the municipal government, he thought carefully again, and now the layout of the introduction of scientific research talents has begun. But scientists alone can't make products, and researchers only know the application of theories, that is to say, scientists know what to do, but if they want to make it themselves, they can't do it, and they don't have the technology.
In modern times, there has been a gap of 100 years between theory and application, and decades between application and product. This is because the machining technology is not up to the mark, or it is a natural defect of man. What we often call human error is the most obvious example. It will not be completely changed until the 21st century. It is only the 90s of the 20th century, and it may have changed abroad, but it is still the time when manual work is still popular in China
, so the best application technology can't be done, and it's in vain. It comes down to a lack of precision.
Thinking of this, he decided to find something to do for Changsheng Seiko.
Shen Danqing is now working in Changsheng Seiko. He picked up the phone and called Peng Bin. It's an internal phone
, The phone was connected in a few seconds, and Peng Bin's voice came from the microphone: Boss, I'm Peng Bin, what's the matter?
Shen Danqing said slowly: Peng Bin, come over for a while, I have something to tell you.
After a while, Peng Bin arrived, and when he came in, he said:
"Boss, what do you tell me? ”
Shen Danqing has been the boss for so long, so he naturally has a bearing, but he waved his hand and said, "Don't worry, sit down and let's talk slowly." ”
After the two of them sat down, he said again: "Because of the development of the company's form, I want to add a task to you Changsheng Seiko." ”
Peng Bin is no longer Wuxia Ameng, and when he heard the boss say this, he hurriedly said: "Boss, just give me orders, I promise to resolutely complete the task." ”
Shen Danqing pondered for a moment before saying, "I found that your company's technical department doesn't have any tasks for the time being, so I will add tasks to you." You know that the name of your company is Changsheng Seiko, as the name suggests, it is precision industry. This time, I have given you the task of making watches, which can be said to be a pearl in the precision industry. It is indeed easy to say that it is easy, and it can be produced by any machine factory, but it is not easy to become world-renowned. This time my requirements are relatively high, I will not say what the specific requirements are, I need Wu Aiguo's technical department to solve. The reason why I told you first is to prepare you for the best technicians and the best technicians to participate in this attack. When you go back, call Wu Aiguo! I will talk to him in more detail. ”
"Okay, boss, I'll call Wu Aiguo right away. ”
Peng Bin bowed slightly, and then replied to Shen Danqing.
Within a few minutes, Wu Aiguo arrived, probably in a hurry, and panting slightly.
As soon as he saw Shen Danqing, he greeted him: "Boss, you look for me"
Shen Danqing still said in his calm tone: "Minister Wu, there are no design tasks in the technical department now, right?"
Wu Aiguo hurriedly replied: "Yes, now the development of small household appliances has been basically completed." ”
"Okay, I'll give you a difficult task now, our company's next product is a watch, but it's not an ordinary watch, my requirement is: a maximum of one second a year, or even one second in a lifetime. If you can't do it in the ordinary way, you have to design some miniature ultra-precision machines, and this is only the first point, in the past, watches were assembled by hand, even in Switzerland, the kingdom of watches. There will inevitably be errors with manual use, and I want you to design an ultra-precision robotic arm, and then use it to reassemble. In short, you need to figure out how to reduce human error and how to improve precision. In addition, the material of the watch should be made of high-grade materials, the cover should be made of sapphire glass, the watch strap and the watch body, and the super wear-resistant alloy should be used. ”
Shen Danqing saw that Wu Aiguo was holding a pen and remembering carefully
I stopped, and when I saw that he had finished writing, he said: "You can refer to Swiss watches for the specific style of the watch, do you understand what I said?"
"I understand, boss, the key to making a watch is to first make a miniature ultra-precision machine tool and a miniature fully automatic robotic arm. As for the principle of the watch, we can refer to the Swiss watch. I don't know if I'm right. Wu Aiguo hurriedly replied.
Shen Danqing nodded and said: "It's basically true, you may think that the conditions are good, but in fact, I am for the layout of the electronics industry in the future." If you have overcome this problem, you will have many fewer problems in the future. In addition, in the design of ultra-precision machinery, you should pay attention to one point, that is, the moving parts need surface treatment, how to increase the density of the surface, you can consider mixing other substances, so that the atomic density of the surface is greater, after surface treatment, the surface smoothness of the moving parts will rise a few levels, you go to experiment. You can use the Materials Research Institute, and you can let them do some things that you can't do, such as machining knives. Let's take you as the leader and set up a precision business department. You have the right to draw people across industries and companies. If you have any problems, just let me know immediately. After Shen Danqing finished speaking, he looked at Wu Aiguo for a while and said, "You go!" The deep eyes seemed to be full of hope.
Wu Aiguo left with a heavy heart, the boss had too high hopes, but he was not half sure. He knew it was a tough battle, and it had to be won.
After Wu Aiguo returned to the technical department, he transferred most of the technicians, and transferred a master with the best technology from the foundry workshop and a senior fitter from the machining workshop to establish the ultra-precision division. Shen Danqing personally participated in the first design workshop.
Wu Aiguo presided over the meeting, he first explained the reason for the establishment of the ultra-precision division, and then he encouraged everyone to work together to successfully complete the task. Finally, he asked the boss to speak.
Shen Danqing first looked around the audience, then cleared his throat and said: "First of all, the parts we need to process are very small and need to be ultra-precise. Then the machine tool parts I want to design do not have much mechanical requirements, you can consider precision casting blanks, and then finishing. Second, the speed of the servo motor should reach more than 30,000 rpm, in order to increase the speed, the motor bearing should consider the liquid bearing. The motor control circuits should be specially made at the laboratory level, the printed circuit boards should be at least gold or platinum grade, the electronic components and sensing devices should all be made of monocrystalline silicon to improve sensitivity, and deep ultraviolet lasers may be required to improve positioning accuracy. Deep ultraviolet laser is the shortest wavelength of light known in the light source, reaching the nanometer level, and is the first choice for positioning lasers. Third, in order to improve precision, special machine tools can be considered. Fourth, the parts that need to move the machine tool should use ion doping technology to increase the atomic density of the surface to improve the slip. Fifth, the parts of the watch should also use ultra-fine liquid bearings, and the gears should use mechanical gears to improve the occlusion accuracy. After the assembly of the watch is completed, the inside should be kept in a vacuum. The gauge screw should be hidden and popped out when in use. ”
Shen Danqing racked his brains to finish the problems that needed to be solved, thought about it carefully, and felt that there was nothing more to talk about, or: "Okay, that's all I said, surface quenching and tempering can be solved by the Materials Research Institute" Shen Danqing left after finishing this. He spoke very lightly, but he left a bunch of hard bones for everyone to gnaw.
No way, that's the difference between a boss and an employee.
The machine tool is a miniature version of the ordinary special machine tool, of course, the machining error is not a level at all
The machining error of ordinary machine tools is at the level of 0.01 mm, while the machining error of micro ultra-precision machine tools is at the nanometer level. They can slowly solve other problems by themselves, but the ultra-precision positioning laser needs to go to the domestic optical research institute to help solve it. No one knows for sure when a watch will be produced.
Sometimes money has a lot of magic. The domestic institutes of this period were the most difficult period, with very little state funding, and they could hardly carry out scientific research. And their way to generate income is very narrow, Changsheng Seiko came to them to ask them to solve the problem of ultra-precision deep ultraviolet laser positioning. The two parties hit it off, Changsheng Seiko is not bad for money, only the result and time, the better the result, the faster the time, the more money they can give. Such a tyrant is the favorite of the Institute of Optics. They sent out a 12-point effort in the hope of slashing Changsheng Seiko.
And Changsheng Seiko ultra-precision division is not idle, because the design of the special machine tool is according to the script, only some minor changes are needed, so the drawings are quickly produced. Precision casting is not slow, because it is a blank, the precision requirements are not high. Surface quenching and tempering, the Institute of Materials also quickly solved the problem because of the ion sputtering technology used in the non-stick pan last time. The most time-consuming part is the finishing part, which is really embroidered on the tip of the needle. Polished by hand under a high-powered electron microscope, the measuring tools use special optical instruments, and the micrometer is no longer standard. Wu Aiguo added a few more senior fitters to increase the speed. Because they already have experience in the control circuit of the servo motor, it is not much difficult to improve the manufacturing level. Only the high-speed motor is not available in China, and it is not necessarily available abroad to reach more than 30,000 rpm. Even with the use of liquid bearings, it was not up to standard at first. Later, it was transformed from two aspects: raw materials and technology. The raw materials are specially made by the Materials Research Institute
The process was also changed to a higher standard. Theoretical calculations are also strengthened. The final motor is manufactured at a speed of up to nearly 50,000 revolutions. After that, there is the matching of the stepper motor and the control circuit, which takes time, and many parameters need to be collected and precisely calculated. The precision robotic arm, because it is a special robotic arm, does not require intelligent judgment, which reduces the difficulty. With deep ultraviolet laser positioning technology, ultra-precision machining technology, and high-precision servo motors, it is actually not difficult to manufacture, and only deep ultraviolet laser technology is in place to be manufactured quickly. The special processing tool for machine tools, because it is too small, must not be bought at home and abroad. You need to design it yourself, but the difficulty is very low, and it is not high for the mechanical requirements and Shen Danqing directly requires the use of diamonds, so it is the easiest link. Now everything is ready, everything is waiting for the breakthrough of deep ultraviolet technology.
In fact, laser technology is needed because it involves military equipment
The country has not relaxed its research on it, and it can be said that it is in the forefront of the world, not inferior to the United States and the Soviet Union. Therefore, it is only a matter of time before Changsheng Seiko entrusts the Institute of Optoelectronics of the Chinese Academy of Sciences to research the deep ultraviolet laser technology.