Super military empire

Chapter 073 The Paper Perforated CNC Machine

"You guys, I hope this incident can teach you lessons. Weapons design needs to consider many aspects. If you are soldiers, the weight of your own design is much lighter, allowing you to carry more Things that save lives on the battlefield, but because of the designer’s self-righteousness, they couldn’t carry more. They even had to carry one kilogram more when escaping. What do you think?” After Liu Yijiu came down, he took Yang Shan several People called to the canteen, ordered a few small stir-fries, opened a bottle of Laobaigan, and explained to them while drinking.

"Master, we remember that from the very beginning you told us that weapon design must take into account the use of soldiers. Even if many are just our considerations, it may not actually happen. As long as it happens once, it is also a kind of weapon. Fatal flaw..." Qin Huaibao was calm.

Liu Yijiu did warn them at the beginning. When designing each day, he taught them all kinds of knowledge about design, and at the same time warned them some things that need attention in weapon design.Among them, design modification is the more important aspect.

"I know you are angry in your heart. This should have been my responsibility. You didn't think it had anything to do with you, but you were also criticized by internal notifications, and the bonus for half a year was fined. If I used to think that way, .You will not realize the problem until something really happens in the future. This is the same whether you admit it or not. Weapons are different from other mechanical designs. They are used for killing, not for production. "Liu Yijiu knew that although these people had no objections on the surface, they absolutely couldn't figure it out in their hearts.

Jia Ling had no idea that she would be taught such a vivid lesson just after she started work.

She even felt that Liu Yijiu was a little contrived. The director of the base and the directors of the three districts had no opinion on this minor accident. He himself had to ask for punishment, including the deputy director who made the base in charge of technology and Yang Shan All were punished.

No matter what she thinks of Liu Yijiu, at least, this incident left a deep lesson in her heart.

Liu Yijiu also knew that it was useless to say anything now.

Only after they have experienced more, they will realize these problems.

For the next few days, Liu Yijiu stayed outside all the time, not only because of a problem with the important parts of the 12.7mm sniper rifle, but also because the personnel did not arrive and could not start work.Even the preparation work is impossible to complete.He also knows what kind of technology is in the country in this era. The base has also checked the technical information about infrared control, but found that the latest ones are all from the 1970s.

298 or the National Institute of Optoelectronics in this regard cannot be stagnant forever.

Only when the people over there arrived, we discussed the plan together.

Liang Qiang has been providing technical assistance on the aerospace side, hoping to see their chips early. Cao Zhijiang will not come, and Liu Yijiu will not be able to complete the work of the entire computer system.I watched the progress of the re-feeding of the casing every day, for fear of any problems.

"Master Yu, I think we have EDM machines there. Why don’t we use them? If EDM is used for rough machining and then metal cutting and finishing, the deformation will be much less?" Liu Yijiu said to Yu Jianguo and the others. Although there is no objection to the newly discharged processing technology, the efficiency is really too slow.Moreover, if the rod milling cutter is used for milling a little bit, the cutting stress generated during the machining process makes the outer shape of the casing very deformed.

"You said those CNC machine tools that just arrived last year? No one of us can use that stuff well! Besides, they have always been artificial. Ordinary milling machines have higher milling efficiency and more reliable quality..." Yu Jianguo Liu Yijiu was stunned by the words.

No wonder these devices are placed in the workshop and then covered with plastic sheets!

If he hadn't been in the workshop every day for the past few days, he really didn't know that there would be these equipment inside.

These equipments, even in their time, were not completely eliminated, which shows how powerful processing capabilities they have.

These craftsmen and managers did not treat these things as one thing!

"The process is changed and the gun case is processed by electrical processing, so the amount of deformation will be much smaller." Liu Yijiu immediately stopped the gun case in the process.

Hearing what Liu Yijiu said, Yu Jianguo was a little embarrassed.

"These electrical processing equipment and numerical control equipment are not the photoelectric tracking processing used by other domestic units, but need to use Morse code for programming. The personnel we sent to Switzerland to study have not returned..."

"This is not complicated, I will do this." Liu Yijiu curled his lips.

The programming of paper tape punching is much easier than other CNC machine tools.Liu Yijiu has done some research on the equipment left at the base early.In their time, these gadgets were toys to pass the time.

"Will you use this?" Xie Heping was a little surprised when Liu Yijiu said that he would use those CNC machine tools covered with plastic sheets.

"When I first came to the base, Su Mingyi still used this to embarrass me. But in the end things changed..." Liu Yijiu nodded.

"Then you try it." Xie Heping was also very troubled by this matter.The operators of these equipments need to wait until the people who are sent out to study will be transferred to them after the first batch of operators in China have been trained. I don't know how long it will take to wait.

The price of these equipment is not cheap, if it can be processed, it is still more suitable.After all, the program of this thing can be processed a lot...

Liu Yijiu didn’t start the machine as soon as he came up. Instead, he did some research according to the German manual provided by the other party. The manual not only contains operation and maintenance methods, but also various types of conversion methods and paper tape punch reading. How to program the various codes.

For people who are not familiar with binary code, this is a headache.

While studying the instructions, Liu Yijiu had people process the copper electrode as a mold according to his design drawings.

"For this thing, the most depressing thing is that it takes a long paper tape to program. The Swiss machine tool uses a standard iso code with a total of eight digits, and the eighth digit is the check code, which is mainly used for spouses... The letters, numbers or symbols given in the list are all punched out according to the regulations (that is, the information hole). The middle line is a synchronization hole, which is mainly used to synchronize the machine tool with the control system..." After the programming is completed, Liu Yijiu Talking to several younger and better skilled workers selected in the machining workshop.

After installing the programmed paper tape in the reading device, people turn on the power switch and start a separate relatively large numerical control device.

"Before the program is run, a trial run is required to verify whether the program we have compiled is wrong. The best is to use easy-to-process materials for trial processing, but in order to ensure that our discharge gap is error-free and avoid scrapping, so Here we use the same material, and leave a larger size. You are experts in the middle. I won’t say more about this..." Liu Yijiu clamped a piece of size to the vise on the workbench of the machine tool. The manganese steel block that is one millimeter larger than the ordinary gun box, began to use the photoelectric induction principle to read the code information on the paper tape.

When the paper tape on the numerical control device is rolled up quickly, the spark machine that was originally motionless also starts to move.

The spark machine, unlike other CNC machine tools, is relatively simple in the machining process, just keep moving the z-axis with the electrode.This movement is not fast, but very slow.

When the spark machine performs EDM, the tool electrode and the workpiece are respectively connected to the two poles of the pulse power supply, and the working fluid is charged into the discharge gap.The tool electrode is controlled to feed the workpiece through the gap automatic control system. When the gap between the two electrodes reaches a certain distance, the pulse voltage applied on the two electrodes will break down the working fluid and generate spark discharge, which instantly concentrates a large amount in the fine discharge channel The heat energy can be as high as 10000c, and the pressure changes sharply, so that a small amount of metal material on the working surface at this point will immediately melt, vaporize, and explodely splash into the working fluid, quickly condense, and form solid metal particles. Taken away by working fluid.

Repeat this process continuously to get the required cavity.

"Xiao Liu, I didn't expect you to be a real all-rounder. I knew it earlier. You should be asked to train our technicians. With these things, processing will be much more convenient in the future..." When the receiver was neatly arranged, almost everyone was surprised and speechless.

They did not expect that these idle equipment would have such a powerful processing capability.

"Director Xie, I have already taught them the basics, and I have also translated the manual into Chinese. The rest is to let them practice more. In this regard, don’t be afraid of waste. You need to work harder. Accumulate..." Liu Yijiu doesn't want to be bothered. With the things at hand, he really doesn't have too much energy to train these skilled workers to learn the equipment operation technology that is about to be outdated.

After the Intel 8085 chip is launched next year, paper tape punching CNC machine tools will soon be fully replaced by modern computers controlled by computers.

Those things are prohibited items for the Republic, but after the reform and opening up of the Republic next year, these equipment will gradually come in...

If it wasn't for the products they designed that needed these crude, relatively weak CNC machine tools, Liu Yijiu would never do it himself.

The only advantage of these gadgets is that under the same program control, when the tool is not worn and the machine is not malfunctioning, the processed parts are basically the same!