Super military empire

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

CNC machine tools, if it proves that there is no problem this time, in the end, they will no longer need the kind of CNC system that relies on the paper tape punching program to control.With the CNC system, the base can produce CNC machine tools by itself!

"Yes, although the main part of this transformation is the numerical control system, I believe you, and I believe in Director Xiao Liu. He made the shot himself, if there are still problems, he can still be the magical Master Xiao Liu?" Yu Jianguo Said with a smile.

How much energy Liu Yijiu put into this CNC machining center, they know better than anyone else, that he will give guidance on the hydraulic work station, pneumatic work station, and even the design of the tool holder.If there is any problem, they will discuss it together.

"Okay, there is no need to check again. Let the comrades around you give way. Although we have tried many times when changing the knife, there will be no loss of the knife, but we have to make sure that..." Liu Yijiu was aside I was speechless when I heard these.

A lot of experiments have been carried out before, and there is no problem. Now we are going to carry out the final test, but we are timid.

"No, let's continue to study. If it succeeds, we must continue to study. Therefore, no matter whether it succeeds or not, it is not a problem for us and cannot stop us from moving forward. Let's get started..." Liu Yijiu said. The others didn't say anything.

"Don't worry, choose single-stage operation first, so that we can better find the problem."

As his words fell, Jia Ling, who was in charge of the operation of the machine tool, once again determined the aluminum alloy block used for trial processing on the machine tool table, then walked to the side and rotated the plc operation panel to the direction parallel to the machine tool. Leaning on his side, I set the knob to single-stage execution, and then pressed the green start button above.

After Jia Ling pressed the start button for the originally motionless CNC machine tool, the worktable began to move, and the tool magazine next to the machine headstock also began to rotate.The spindle rose a bit before it stopped. When the tool magazine was originally placed horizontally, when it was rotated to the tool change position, under the control of hydraulic and electronic signals, it slowly rotated downward, and then became a hole with the spindle. parallel.

The mechanical arm, which was originally in the middle of the spindle and the tool magazine, moved down quickly under the control of air pressure and electronic signals. When it reached the tool change position, it directly rotated 90 degrees, just enough to be stuck on the tool holder.

"Crack!" The air pressure inside the tool magazine changed, and the tool magazine that was holding the tool suddenly released its grip.

With Jia Ling's operation, the manipulator moved very slowly. Without a shield, it was also the first overall operation for the actual tool change, which made everyone very nervous.Originally, the tool change action can solve the problem directly with a code, but now they have compiled a separate program for operation.

Regarding the numerical control system, Liu Yijiu did not modify the international ISO standard code for future export issues.These are general-purpose, it is possible to export later.

The manipulator tool holder holding the handle moved a little bit and rotated 180°, and then rose quickly. After hearing a crackle, the manipulator returned to its original position...

After the tool change is completed, the spindle begins to descend and rotates in the process.

"Lower speed, use 60% gear!" Liu Yijiu kept commanding according to the situation nearby, while Jia Ling operated quickly under his command.The basic operation of CNC machine tools is not difficult, the most important thing is to be familiar with the functions of the entire control system.

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

This is the work necessary to establish a coordinate system for the machine tool.This is different from ordinary milling machines, which can measure while processing, and it is very easy.The same can be done with CNC machine tools, but accuracy cannot be guaranteed.

In order to let the machine tool know what position is the origin and what position to process, it must be set in the CNC system and input, so that the machine tool has a reference, and the displacement measured by the grating ruler can be set in strict accordance with the program. The parameters are processed.

"Since there is no problem, let the machine tool execute automatically..." It is impossible for Liu Yijiu to say that he is not nervous.

After all, there is too much on this.

Complex parts, high-precision parts, the efficiency and reliability of CNC machine tools are far easier to complete these tasks than experienced skilled workers.

As programs continue to instigate one by one on the palm-sized display screen, all parts of the machine tool are beginning to move faster or slower, and the spindle speed is constantly changing faster or slower.

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

After the first tool is processed, the movement stops, and the entire machine is inactive before the tool is changed.

The original square part on the machine tool, under the control of the program, has begun to become an elliptical shape, with a convex boss with an arc on it, and a simple shape with a circular hole in the middle.Without professional design software, it is not very easy to process some complex three-dimensional surfaces like propellers.

Just programming is a very difficult thing.

This requires the introduction of macro programs.The most basic procedures were not completed, Liu Yijiu just asked Cao Zhijiang and the others to study, and now they are not using it.

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

"Master, or a single-stage operation?" Jia Ling stood in front of the control panel and asked Liu Yijiu, turning her head.

Liu Yijiu thought for a while, shook his head, and let himself run automatically.

Now is the most critical place for testing their control system, tool changing mechanism, hydraulic workstation, and pneumatic work.

The tools on the spindle are swapped with those in the tool magazine.

Although the experiment has been done, there is no problem, but now it is all concentrated on this machine tool. It is the first time to use only one t representing the tool and data representing the number of tools.After all, the most important technology in a CNC machine tool is the control system.

Tool change is to check whether each system is integrated, whether it meets the design requirements, whether it can complete strict cooperation, electronic components, mechanical components, pneumatic components, hydraulic workstations, etc., all work together.

A simple action combines all the essence of the entire machine tool.

Jia Ling's white fingers trembled and couldn't push it down. Luo Tong on the side was a little anxious, "Sooner or later, there must be something like this, and the ugly daughter-in-law also has to see the in-laws. If the in-laws don't like it, she is planning... …"

After speaking, he pointed at the green button and stabbed it hard...

Everyone held their breath and stared at the movement of the machine.

As he pressed it down, the tools already in place in the tool magazine slowly turned into a vertical workbench again.

The manipulator that was originally erected in the middle bounced off in an instant, and then moved quickly, just getting stuck in the v-shaped ring groove on the handle. With a bang, the manipulator holding the two knives moved down quickly. , Everyone's heart mentioned the throat, just look at this step!

The manipulator grasped the two knives, rotated it again by 180°, and when it reached the position, it suddenly pulled up.The tool holder replaced from the spindle accurately enters the tool holder; the tool holder replaced from the tool holder accurately enters the spindle hole.

As the bang sounded again, the tools in the sleeve and the tools in the spindle were just pulled by the air pressure.

The manipulator releases the handle, rotates 90°, and returns to the original position without moving!

"It's done! It's finally done! From now on, we will have more advanced CNC machine tools than foreign countries!" Although this process is long to describe, it actually only takes more than two seconds. After completing this process, Others did not care whether the program was over or the processing was completed, and cheered.

Yu Jianguo even had tears in his eyes.

The first CNC milling machine in the Republic was born in the Capital No. 1 Machinery Factory in 1959. In other words, the CNC engraving machine is more suitable because it can only be used for engraving, but it was eventually buried by history.However, this did not persist, and China still did not succeed in the end.

At that time, there was a lack of understanding of the characteristics and development conditions of CNC machine tools. When the quality of personnel was poor, the foundation was weak, and the supporting parts were inadequate, they rushed up and down. There were three ups and downs, and the performance was not good. Pause for production.

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

"Let me down quickly! I'm dizzy, dizzy..." Liu Yijiu didn't expect that Qin Huaibao and Luo Tong started with the two boys, and the other skilled workers also followed up and lifted Liu Yijiu up in this workshop. Hold him inside and throw it up!

Liu Yijiu was helpless.

At this time, it is not the time when domestic CNC machine tools have been unable to achieve breakthroughs. If they wait until then to make them out, how crazy will these guys be?

"This kid, perhaps 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 he knew how things were going back.

If Liu Yijiu heard this, he would have escaped...

"After the success of the CNC machining center they studied, the progress of many of our projects will be much faster. Now the new equipment requires very high processing technology. The CNC machine tools that the Americans promised to us from abroad have never been in place... "Wang Shunyi sighed.

His face is also full of smiles.

"He did not live up to his father's expectations of him..." Li Yunlong said lightly.

They did not understand the impact of CNC machine tools on the advanced equipment manufacturing industry. They were shocked when they saw that CNC machine tools were continuously processing parts into shapes such as straight lines or arcs without human operation. Up!

Since then, the Chinese have their own CNC machine tools.