Intelligent Industrial Empire

"Boom!" "Boom!" "Boom!"

"The last knife..." All the people around this testing machine without a passport-enclosed casing stared closely, waiting for the last knife change in the first turn of the reversal.

The tool magazine rotates one circle forward, there is no problem, 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 during 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.

"Switch to manual mode..." When the first tool stopped at the tool change position again, and was about to switch from the horizontal state to the vertical state, Yunfei said to Lin Yajun, who was staring nervously at the manipulator that was about to move.

Hearing Yun Fei's words, Lin Yajun hurriedly pressed the pause button, and his right index finger and middle finger respectively pressed the pause button and the start button.First press the start button, and 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.Only by constantly switching between the pause button and the start button and the buttons, in order to achieve the purpose of manual control.However, those who can play in this way are the more experienced masters who use them for trial cutting and processing when debugging programs.In theory, this operation is illegal and does not conform to industry regulations.It is easy to cause damage to some sensitive control components of the CNC system.If the frequency of pause and start is too high, it may even burn the control chip of the CNC system!

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

The tool magazine test, especially the initial test, should be divided into many steps.All of them didn't have that kind of patience. As soon as they came up, they set up the tool magazine to revolve one hundred times, and carried out 1,200 tool change tests.

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

"Boom..." The sound of the cylinder pushing the handle of the knife made everyone's heart lifted to the throat.

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

"Hey..." a sigh sounded.

Everyone's face became darkened.

"Lao Sun, it's okay, isn't this the first experiment? How can it be successful from the beginning? If this is the case, our country would have developed CNC machine tools with more than three axes." After going away, Yun Fei calmly comforted.

Yun Fei had been mentally prepared for things like a knife drop.

The problem of tool magazine in machining center is a difficult point.Otherwise, China-made CNC machine tools cannot be close to the foreign technical level on CNC milling machines, and in the selection of machining center tool magazines, only the hat-type 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 capable of holding more tools.

"We have never made a test machine due to research funding issues, but theoretical research has been done for several years, and now we have just conducted the second round of knife exchange experiments, and the knife has dropped..." Sun Lin looked lonely. Said.

He was very confident in the theoretical design of his team, but now he was shocked by this knife drop.

"When the previous parts were tested individually, there was no problem, especially the problem of knife dropping that shouldn't occur at this time. Ask what the process assembly did? How many problems are still not exposed?" Situ He Yun was also very depressed.

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

"Xiao Lin, install the No. 1 knife, continue the experiment, and record the data each time. Then we will analyze together to find out where the problem is." Since the problem has occurred, it is useless to entangle it. It is better to continue the experiment, once a knife is dropped, it is impossible to know what defects and how many defects are in this tool magazine.

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

In the end, the tool handle was full of collision marks, and the manipulator was twisted and deformed. The cone surface above the spindle taper hole of the machine tool was also pitted and the test could only be terminated.

"Lao Sun, would you like to ask if the Capital No. 1 Machinery Factory is interested in the disc-type tool magazine, let's work together?"

After the summary meeting of the first experiment, Yun Fei was very depressed facing Sun Lin and Situ Heyun who seemed to have been taken away.Is this old man from the Mechanical Yard?This time the test failure is such a depressed expression, where is the scientific spirit that is not afraid of failure!

Since the end of the test, all links have been checked countless times, and several summary meetings have been held. Whether it is modeling or sub-testing, it has never been possible to find out the cause of the knife drop.Even Sun Lin personally measured every time the tool was changed, and there was no difference from the theoretical design.

In desperation, Yunfei could only offer to let Sun Lin's team cooperate with the Capital No. 1 Machine Tool Factory.Maybe the engineers in the Capital No. 1 Machine Tool Factory can help find where these problems are?

When Jiuyi Heavy Industry started to study the machining center, Sun Lin proposed to cooperate with Capital No. 1 Machinery Factory on this project, so as to not only share the cost, but also make use of the abundant production of milling machines produced by Capital One Machine for decades. experience.In the end, it was rejected by the Capital No. 1 Machine Tool Factory.

As the CNC milling machine of Jiuyi Heavy Industry is on the market, Capital One also launched its own CNC milling machine.However, in their CNC milling machine, the movement in the Z-axis direction is that the entire worktable moves up and down, not the spindle.Moreover, Capital No. 1 machine did not adopt the Dragon CNC system produced by Huashu, but launched their own Capital CNC system with countless traces of FANUC. In this way, it clearly stated its position.

Capital One Machinery, 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 newly built a year ago?They believe that the self-developed items advertised by Jiuyi Heavy Industry are all backward technologies purchased by Jiuyi Heavy Industry from abroad.Not qualified to conduct scientific research cooperation with them.

"No!" The two old guys did not even think about it, and rejected Yun Fei's proposal in unison.

The refusal of the Capital One Machine is the most shameless of these two old products.

At first, they contacted.

Now, under the insistence of Yunfei, Jiuyi Heavy Industry has taken a different route to technological research than that of Capital One.In the research on the machining center, Capital and Jiuyi use 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 on Jiuyi Heavy Industry. The research results of millions of funds gave way.

How can two old people who have been shameless by the capital's machine do such a thing?

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

Many of Taiwan's CNC machine tool manufacturers have now begun public relations with the mainland government.CNC machine tool technology is originally a technology that is urgently needed in China. The whole country is almost blank. If they fail to seize the market before their machine tools flood into the domestic market because of the lack of import intermediary fees, unless the CNC machining center produced by Jiuyi Heavy Industry It can be more accurate and cheaper than those Taiwan-funded enterprises, otherwise, there is really no big way out.

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

He was worried that Yunfei would reduce the research funding for CNC machine tools when he was eager to seize the market, and set his sights on the economically depressed countries in Europe for technology introduction.

If Yun Feizhen did that, they would no longer be able to raise their heads in front of the grandsons of the first machine in the capital.

Although the CNC milling machine produced by Capital One Machine has various defects and the accuracy is not high, it is really like what they said, they are all independently developed!All technologies are made in China!Even if the CNC system has countless traces of ghost subsystems, it is a reference!The same is domestic, at least, Guizi did not sell the technology to them!

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

"I don't need three months, nor two months, you give me three days!" Sun Lin suddenly raised his head and said with a smile at Yun Fei. After speaking, he took Situ He Yun and left. The meeting room of the Technical Department.

"..." Yun Fei was stunned, this old fellow, before and after reaction, the gap is too big...