"Cao Gong, don't worry, this has been simulated many times!" Liang Qiang was also very nervous.

CNC machines, if this proves to be no problem, in the end, they will no longer need the kind of CNC system that relies on the program of paper tape punching to control. With the CNC system, the base can produce its own CNC machine tools!

"Yes, although the main part of this transformation is the CNC system, I believe in you, and I believe in Director Xiao Liu. He took action personally, if there is still a problem, can he still be the magical little Master Liu? Yu Jianguo said with a smile.

Liu Yijiu put a lot of energy into this CNC machining center, they know better than anyone else, the hydraulic workstation, the pneumatic workstation, and even the tool handle design are all pointed out by him. If there are any problems, they also discuss them together.

"Okay, there's no need to check again, let the comrades around you get out of the way a little, although we have experimented many times when changing the knife, there will be no knife dropping, but we have to make sure that in case ......" Liu Yijiu was speechless when he heard this.

A lot of experiments have been carried out before, and there is no problem, but now it is time to carry out the final test, but it is timid.

"No, let's continue to study, if it does, we have to continue to study. So, whether it's successful or not, it's not a problem for us, and it can't stop us from moving forward. Let's start......" Liu Yijiu spoke, and the others didn't say anything more.

"Don't worry, choose a single-stage operation first, so that we can better identify problems."

As his words fell, Jia Ling, who was in charge of the operation of the machine tool on the side, once again determined the aluminum alloy block used for trial processing on the machine tool workbench, and then walked to the side. Rotate the PLC operation panel parallel to the machine and turn it sideways. Select the knob to a single stage execution, and then press the green start button above.

The CNC machine that was originally motionless was after Jia Ling pressed the start button. The table began to move, and the tool magazine next to the machine headstock began to rotate. The spindle rises a little before stopping, and the tool that was originally placed horizontally in the tool magazine slowly rotates downward under the control of hydraulic and electronic signals when it rotates to the tool change position, and then becomes parallel to the spindle hole.

The robotic arm, which was originally located in the middle of the spindle and the tool magazine, moves rapidly downward under the control of air pressure and electronic signals. When it came to the tool change position, it was rotated 90 degrees directly, just enough to get stuck on the tool handle.

"Smack!" The air pressure in the tool magazine changed, and the tool magazine that was originally holding the tool suddenly released the grip.

With Jia Ling's operation, the manipulator's movement was very slow, and in the absence of a shield, it was also the first time to carry out the actual tool change in the overall operation, which made everyone very nervous. Originally, the tool change action can be solved directly with a single code. And now they have a separate program to do it.

In terms of the CNC system, for the sake of future export problems, Liu Yijiu did not modify the international ISO standard code. These are universal, and it will be possible to export them later.

The gripper gripper moves little by little and rotates 180°. After quickly ascending, and after hearing a snapping sound, the manipulator returned to its original position......

After the tool change is complete. The spindle begins to descend and rotates in the process.

"The speed is reduced. With 60% gear! Liu Yijiu was constantly directing according to the situation, and Jia Ling was operating quickly under his command. The basic operation of a CNC machine is not difficult. The most important thing is to familiarize yourself with the functions of the entire control system.

At the same time, the most important operation is to clamp the parts on the workbench and find the center.

This is necessary to establish the coordinate system for the machine. This is different from ordinary milling machines, which can take measurements while machining, and it is very easy. The same can be done with CNC machines, but the accuracy cannot be guaranteed.

In order to let the machine tool know what position is the origin and what position it is processed to, it must be set in the numerical control system and input, so that the machine tool has a reference, and the amount of displacement is measured by the grating ruler, and the processing can be carried out in strict accordance with the parameters set by the program.

"Since there is no problem, let the machine tool perform automatically......" Liu Yijiu's heart wants to say that he is not nervous, this is impossible.

After all, there is too much to carry on this.

Complex parts, high-precision parts, the efficiency and reliability of CNC machines are far easier to do than experienced skilled workers.

As the program moves one by one on the palm-sized display, the various parts of the machine begin to move faster or slower, and the spindle speed is constantly changing faster or slower.

These are all controlled by the program of the machine tool.

After the first tool is machined, the movement stops, and the entire machine does not move until the tool is changed.

The original square part of the machine tool has begun to become an elliptical shape under the program control, with a boss with a rounded arc on it and a simple shape with a round hole in the middle. In the absence of professional design software, it is not very easy to process some complex three-dimensional space surfaces such as propellers.

Just programming is a very difficult thing.

This necessitates the introduction of macros. The most basic procedures were not completed, and Liu Yijiu just asked Cao Zhijiang and them to study it, and they did not use it now.

Moreover, at the beginning, the CNC machine tools of these control systems for paper tape punching that they introduced did not have this function at all.

"Master, is it still a one-stage operation?" Jia Ling stood in front of the control panel and turned her head to Liu Yijiu and asked.

Liu Yijiu thought about it, shook his head, and let himself run automatically.

Now it is the most critical place to test their control system as well as the tool change mechanism, hydraulic workstation, pneumatic work.

The tool on the spindle is reversed with the tool in the tool magazine.

Although there were no problems with the experiments, it was the first time that it was all focused on this machine and controlled with only a T representing the tool and the data representing the number of knives. After all, the most important technology in a CNC machine tool is the control system.

Tool change is to test the integration of each system, whether it meets the design requirements, whether it can complete strict coordination, electronic components, mechanical components, pneumatic components, hydraulic workstations and so on all work together.

A simple action that combines all the best of the entire machine.

Jia Ling's white fingers trembled and couldn't be pressed down for a long time, Luo Tong on the side was a little anxious, "Sooner or later, there has to be such a thing, the ugly daughter-in-law also has to see her in-laws, if the in-laws don't like it, they are making plans......"

After saying that, he stabbed his finger hard at the green button......

Everyone held their breath and stared at the machine's movements.

As he pressed it, the knives that were already in place in the magazine slowly changed to a vertical table again.

The manipulator that was originally erected in the middle bounced down in an instant, and then moved rapidly, just stuck in the V-shaped ring groove above the tool handle, with a bang, the manipulator holding the two knives moved down quickly, and everyone's hearts were raised to the throat, just look at this step!

The manipulator grabbed the two knives, rotated them 180° again, and when they reached the position, they pulled them up sharply. The shank that has been replaced from the spindle goes exactly into the sleeve; The shank that was replaced from the sleeve entered the spindle hole accurately.

With another banging sound, the knives in the knife sleeve and the knives of the spindle were only pulled by air pressure.

The manipulator releases the handle, rotates 90°, returns to its original position, and does not move!

"It's done! It's finally done! From now on, we will have more advanced CNC machine tools than abroad! This process, although long to describe, is actually only a little more than two seconds, and after completing the process, the others did not care whether the program was over or whether the processing was completed, and cheered.

Yu Jianguo was even more tearful.

The first CNC milling machine in the Republic was born in 1959 in the first machinery factory in the capital, or the CNC engraving machine is more suitable, because it can only be used for lettering, but in the end it was buried by history. However, this did not persist, and in the end China still did not succeed.

At that time, there was a lack of understanding of the characteristics and development conditions of CNC machine tools, and in the case of poor personnel quality, weak foundation, and poor accessories, they rushed up and down, and finally stopped because of poor performance and could not be used for production.

It just so happened that Yu Jianguo was the person in that project back then.

"Put me down! Dizzy, dizzy...... "Liu Yijiu didn't expect that Qin Huaibao and Luo Tong started with the two boys, and other skilled workers also coaxed, lifted Liu Yijiu up, and threw him up in this workshop!"

Liu Yijiu was helpless.

At this time, it is not the time when domestic CNC machine tools have not been able to get a breakthrough, if you wait until that time to get out, how crazy will these guys be?

"This kid, maybe you should study the structure of his brain......," Long Yaohua, who followed Wang Shunyi and Zheng Hao to find Liu Yijiu, said with a smile after knowing what was going on.

If Liu Yijiu heard this, he would probably run away......

"After the success of the CNC machining center they studied, the progress of many of our projects will be accelerated a lot, and now the new equipment has very high requirements for processing technology. Imported from abroad, the CNC machine tools promised to us by the Americans have not been in place......" Wang Shunyi sighed.

His face was also full of smiles.

"He lived up to his father's expectations of him...... Li Yunlong said lightly.

They didn't understand the impact of CNC machine tools on the advanced equipment manufacturing industry, until they saw that the CNC machine tools were constantly processed into some straight lines or arc shapes under the operation of no one, and they were shocked!

Since then, the Chinese have their own CNC machine tools. (To be continued......)