Smart Industrial Empire

"Boom!" "Crack!" "Boom!"

"The last knife..." All the test machines around the test machine without a casing passport were staring closely, waiting for the last knife change in the first round of reversal.

There is no problem with the forward rotation of the tool magazine. Now the reverse rotation is about to be completed. As long as the tool can be successfully completed under the grip of the manipulator, it means that the cumulative error of the tool magazine in the rotation is not very large.

More than two months of theoretical design, more than half a month of manufacturing, all the work is waiting for this tool change action.

"Transfer to manual mode..." Yun Fei said to Lin Yajun who was nervously staring at the manipulator that was about to move when the No. [-] tool stopped at the tool change position again and was about to switch from a horizontal state to a vertical state.

Hearing Yun Fei's words, Lin Yajun hastily pressed the pause button, and the index finger and middle finger of his right hand pressed the pause button and the start button respectively.First press the start button, then immediately press the pause button, two fingers slowly touch the buttons on the control panel.

The operation of CNC machine tools cannot be directly converted from automatic control to manual control during the running of the program.The only way to achieve the purpose of manual control is to constantly switch between the pause button and the start button.But those who can play in this way are all experienced master craftsmen, who use it when debugging programs and trying to cut and process.In theory, this kind of operation is illegal and inconsistent with the regulations in the industry.It is easy to cause damage to some sensitive control components of the CNC system.If the frequency of pausing and starting is too high, it may even burn the control chip of the CNC system!

However, in the process of processing some complex products, it is easy to encounter some problems. If you stop the program, wait until the problem is solved, and start processing again, you need to start from the beginning.Later, in order to solve such problems.Some of the more advanced systems have the function of jump execution, but the Long CNC system transformed by Jiuyi Heavy Industry does not yet have such a function.

The tool magazine test, especially the initial stage of the test, should be divided into many steps.None of the people had that kind of patience. As soon as they came up, they first set up the tool magazine and ran it for [-] times, and performed [-] times of tool change tests.

Now when this makes everyone nervous, they can only use this relatively illegal method for the CNC system.

"Bang..." The sound of the cylinder pushing the handle of the knife made everyone's heart rise to their throats.

"Bang!" The manipulator just moved.The handle of the knife from the guide sleeve of the knife magazine fell off.Lin Yajun, who had just breathed a sigh of relief, slapped the dazzling red "emergency stop" knob with a "slap!"

"Alas..." A sigh sounded.

Everyone's faces became gloomy.

"Old Sun, it's okay. Isn't this the first experiment? How could it be successful at the beginning? If this is the case, our country will have produced a CNC machine tool with more than three axes." Seeing Sun Lin seemed to be drawn After she lost her energy, Yun Fei comforted her calmly.

Yun Fei had long been mentally prepared for such a thing as dropping the knife.

The tool magazine problem of the machining center is a difficult point.otherwise.It is also impossible for China's domestic CNC machine tools to be close to the foreign technical level on CNC milling machines, and in the selection of machining center tool magazines, only the hat-style tool magazine with the least technical difficulty can be used.Until later, with the accumulation of experience.It gradually developed towards the disc-type random tool magazine and the chain-type tool magazine with higher technical content and the ability to hold more tools.

"We haven't made a test machine because of the problem of research funds, but we have been doing theoretical research for several years, and now we have just carried out the second round of knife changing experiments. There was a knife drop..." Sun Lin said with a look of desolation Said.

He was very confident in his team's theoretical design, but now he was hit by the knife drop this time.

"When the previous parts were tested individually, there were no problems. Especially the knife drop problem that shouldn't occur now, why did it appear after the assembly? How many problems have not been exposed?" Situ He Yun was also very depressed.

From the current point of view, the biggest problem now is the problem of control. The cam mechanism controlling the tool magazine is not positioned accurately, and the accumulated error is too large, which makes the manipulator not grasp the tool handle at a fixed position, so that when it moves, The handle fell off.

"Xiaolin, install the No. 1 knife, continue to test, and record the data each time. Then everyone will analyze together to find out where the problem is." Now that the problem has already appeared, it is useless to entangle. It's better to continue to experiment. Once a knife is dropped, it is impossible to know what defects and how many defects there are in this set of tool magazines.

The test was carried out again, and the knife drop phenomenon became more and more frequent.

In the end, the tool holder was full of collision marks, the top of the manipulator was twisted and deformed, and the taper surface on the taper hole of the spindle of the machine tool was also full of potholes, so the test could only be terminated.

"Mr. Sun, why don't you ask Capital No. [-] Machinery Factory if it is interested in a disc-type tool magazine, and let's work together?"

After the summary meeting of the first experiment, Yun Fei was very depressed facing Sun Lin and Situ He Yun who seemed to have been drained of energy.Is this old guy from the Mechanical Academy?The failure of the experiment this time is such a distraught expression, how can there be those scientific spirits who are not afraid of failure!

Since the end of the test, various links have been checked countless times, and several summary meetings have been held. Whether it is modeling or sub-tests, it is still impossible to find out the reason for the knife drop.Even Sun Lin personally measured the position of each tool change, and there was no difference from the theoretical design.

In desperation, Yunfei could only ask Sun Lin's team to cooperate with the Capital No. [-] Machine Tool Factory.Perhaps those engineers in the Capital No. [-] Machine Tool Factory can help find where these problems occur?

When Jiuyi Heavy Industry started the research on the machining center, Sun Lin proposed to cooperate with Capital No. [-] Machinery Factory on this project. This will not only share the cost, but also make use of Capital Yiji’s rich experience in producing milling machines for decades. experience.In the end, it was rejected by the Capital No. [-] Machine Tool Factory.

With the launch of Jiuyi Heavy Industry's CNC milling machine, Capital Yiji also launched its own CNC milling machine.However, for their CNC milling machine, the movement in the z-axis direction is the entire worktable moving up and down, not the spindle moving up and down.Moreover, Capital Yiji did not adopt the Long CNC system produced by Huashu, but launched their own Capital CNC system with traces of countless devil fanucs. In this way, they clearly stated their position.

Capital Yiji, a large state-owned enterprise with tens of thousands of people, produces more than half of the milling machines in the Chinese factory. How can it be regarded as a small factory that is only a year old?They believe that the self-developed things that Jiuyi Heavy Industry advertises are some backward technologies that Jiuyi Heavy Industry has bought from abroad.They are not eligible to conduct scientific research cooperation with them.

"No!" The two veterans rejected Yun Fei's proposal with one voice without even thinking about it.

Capital Yiji's refusal, the most embarrassing is these two veterans.

They were the ones who contacted at first.

Now, under Yunfei's insistence, Jiuyi Heavy Industry is taking a different route to technological breakthroughs than Capital Yiji.In the research of the machining center, the capital and the use of a fixed tool magazine, while Jiuyi Heavy Industry uses a random tool magazine, if the two companies cooperate now, it is tantamount to spending several months of energy on Jiuyi Heavy Industry. The results of research with millions of funds are handed over.

How could the two veterans who had been humiliated by the capital at the beginning, do such a thing?

"If we don't cooperate, we won't be able to continue this experiment... Several factories in Taiwan have already started to discuss with some local governments in China about building factories in the mainland. It is estimated that their mainland factories will be closed by May or June next year at the latest. It will be established..." Yun Fei said to the two academicians with tangled faces.

Many Taiwanese CNC machine tool manufacturers have already started public relations with the mainland government.CNC machine tool technology is an urgently needed technology in the country, and the whole country is still almost blank. If they fail to seize the market before their machine tools flood into the domestic market due to the lack of import intermediary fees, unless the CNC machining center produced by Jiuyi Heavy Industry It can have higher precision and lower price than those Taiwan-funded enterprises, otherwise, there is really not much way out.

"Give me another three months, no, two months, we will definitely be able to solve these problems!" Situ He Yun said eagerly to Yun Fei.

He is worried that Yunfei will reduce the research funding for CNC machine tools when he is eager to seize the market, and turn his attention to those European countries with economic downturns to seek technology introduction.

If Yun Feizhen did that, they would no longer be able to hold their heads up in front of those grandchildren in Capital Yiji.

Although the CNC milling machine produced by Capital Yiji has various defects and the precision is not high, but it is true as they said, they are all self-developed!All technologies are domestically produced!Even though the numerical control system has traces of countless ghost systems, it is a reference from others!It is also domestically produced, at least, the devils did not sell them technology!

Jiuyi Heavy Industry has taken the road of independent research and development on CNC lathes and CNC milling machines. This has given them hope that there will finally be a machine tool manufacturer in China that can resist independent innovation in the CNC machine tool industry and independently develop a banner , if Yunfei turns to seek foreign CNC machine tool technology, who will resist this nationally produced banner?

"I don't need three months, and I don't need two months, you give me three days!" Sun Lin suddenly raised his head, smiled at Yun Fei and said, after speaking, he pulled Situ He Yun away The meeting room of the technical department.

"..." Yun Fei was stunned, this old guy, there was a huge gap in his reactions... (to be continued...)