Chapter 205: Accuracy beyond imagination

Computers in this era are still the kind of tall things. Just in terms of price, an Apple 2 computer is enough to buy a courtyard house in the capital.
It is destined to be a niche among the niche. The average person can't control it. Who has been in contact with a computer?
Everyone took it lightly, put Sandra next to the CNC machine, opened the box, Sandra skillfully connected the data lines, and then turned on the computer.
"Di." There was a soft noise inside, and slowly, after waiting for a few minutes, the beating characters on the screen passed, and a colorful picture appeared.
Apple 2 is a cross-age. It has an 8-bit processor and a frequency of 1Mhz. Compared with later generations, this is of course trivial. However, it has achieved multiple firsts, such as its graphical interface. For example, its built-in programming language.
"Now, I have to work." Sandra said, starting to drive away the people who helped her carry the machine.
Sandra watched everyone leave, pulled over the phone line, plugged the crystal head into the computer, and then quickly jumped on the keyboard.
She didn't operate the CNC machine at all, she was only operating the computer at hand. At this time, her mood gradually became impatient.
There is no sign of successful connection on the screen, what's the matter?
Quick, quick, she looked at the screen, hoping to slowly become disappointed.
"Hahaha." Qin Guan burst into laughter in an instant listening to Xiang Jing's report in the office: "This big Yanmar is really whimsical. He wants to go online!"
"What is Internet access?" Heribala asked puzzledly: "We are in the workshop, don't we have any Internet?"
People in this age don't understand what the Internet is. That's normal. Even in the Western world, the Internet is still a new thing.
Although the TCP/IP protocol has not yet appeared, the research on the Internet began in the 1950s. It was first studied as a military network and gradually transferred to civilian use.
In Han, dial-up Internet access only started in the 1990s, and now, in developed countries in the West, this method must have been tried to access the Internet.
This Sandra, a foreign master of pretenders, thought she was awesome, and she asked for a computer, not necessarily for machine tools. First of all, she wanted to connect to the Internet.
In China, there is not even a network operator. This phone line can only use analog signals, so you still want to use the phone line to go online?
Do you think it can be used with a phone line? Unless you are the best hacker of this era.
The phone is unavailable, and the Internet is even more unavailable. Want to contact the outside world in this place where the birds do not shit?
Have you heard of Xuexiang for later generations?
It’s isolated from the world. If you want to go out, you have to take the bus and back up. There is thick snow around you and you can’t run away alone. So, when you get there, you can’t even be slaughtered. ? You are leaving, frozen to death, and you won't find it until the snow melts the next year.
The current Prairie City is almost like this.
The weather is getting colder and colder, there is snow everywhere, it is not easy to want to go, stay here obediently!
The computer has also been purchased for you at a high price. If you don’t start working again, your wages will be deducted. Everyone is waiting!
Time, little by little, when Xiang Jing returned to observe, Sandra had officially started work.
I have never seen this machine before, but Sandra is not too worried. The principle of the machine is the same. Now, she clamps the workpiece to the machine, enters the program, and then starts the machine.
"Hum," the motor below rotates, driving the workpiece to rotate. Driven by the linear motor, the turning tool begins to advance toward the workpiece, and then a trace of iron filings rotates out.
Sandra was already wearing work clothes, wearing a hat, stuffed all her hair in, and her cuffs were tied tightly. She was wearing gloves on both hands, which looked extra professional.
Machining is very dangerous. If you don’t pay attention to the safe operation procedures, you may even be in danger of life. She gave up the idea of ​​contacting the music country and finally started work. A person is average.
The three turning tools moved together. Soon, the workpiece inside had finished production. Stopped the lathe and took off the workpiece. Sandra picked up the caliper on the side and began to measure carefully.
The surface is very smooth, so even if you don't go into the grinder, I am afraid it can already be used. Looking at the numbers on the calipers, Sandra suddenly opened her mouth.
Impossible, how is it possible?
When it is loaded on the lathe, the size should be slightly larger, so that it can be further processed into the grinder when it comes out. Now, the size of this workpiece is only 0.002 mm away from the size set by yourself!
This CNC machine tool, under its own operation, has a higher processing accuracy than its own in the music country! In China, our own processing accuracy is 0.005 mm, which is enough to meet the needs of oil pumps, but the other side's processing accuracy is so powerful?
Is this CNC machine tool really MadeinChina?
Impossible, it is absolutely impossible!
Try again with a grinder!
The surface of the plunger was already quite smooth, and the program of the grinder was set up. Sparks splashed inside. A few minutes later, Sandra took out the workpiece inside.
Measured with a caliper again, and her face was astonished beyond description.
The error is zero and there is no error.
Of course, according to the theory, the error will always exist, and the error can only be minimized, not eliminated.
The main reason is that the caliper at hand can only measure 0.002, but now the accuracy of the oil pump plunger is less than 0.002 mm after being processed by the grinder, so if you measure it with the caliper, there is no error.
What does this machining accuracy mean?
This means that the plunger of the oil pump and the side wall will be in closer contact with each other, and there will be less oil leakage. That is to say, the pressure of the pump oil can be increased. The higher the pressure, the better the diesel atomization and the higher the efficiency of the engine. !
If we can introduce a set of such CNC machine tools, that would be great!
Now, Hans's Mercedes-Benz NG80 heavy truck has advanced technology, and the OM402 power system used on it is extremely powerful. If we can have such equipment, we can manufacture a power system comparable to Mercedes-Benz heavy trucks.
Thinking of this, Sandra's face was already filled with joy. Unexpectedly, there could be such a surprise here!
Of course, there is only one component, which cannot be detected. Next, make new parts to see if this accuracy can be maintained!