Smart Industrial Empire

"There is a good saying in the movie "Little Soldier Zhang Ga": 'Don't look at the turmoil you are making now, be careful to make a list in the future!'" Yun Fei, who had figured everything out, was full of energy in his heart.

Since then, Yunfei has been staying in the technical department and the production workshop every day, watching the veterans in the technical department modify the drawings every day, and constantly discussing the rationality of various designs with Sun Lin.Yunfei has no experience in designing CNC machine tools, but he has seen many CNC machine tools, such as those from Germany, Switzerland, Japan, and the United States. Basically, as long as they are exported to the Chinese market, even if Yunfei has never used them, he can seen.

Sun Lin has studied CNC machine tools all his life. Although he has never seen the most advanced CNC machine tools abroad, he has heard of some theories used in advanced CNC machine tools. The only shortcoming is that he does not know how these theories should be used. How to become a reality on CNC machine tools.

For example, Sun Lin wanted to use the rack and pinion transmission method used by foreign heavy-duty CNC machine tools on Jiuyi Heavy Industry's CNC machine tools, but Yun Fei scorned him.

Just kidding, the use of rack and pinion is just to ensure the rigidity of the machine tool during heavy-duty processing, and the transmission accuracy is not as high as that of the ball screw.Especially the transmission speed, there is no way to compare with the transmission of the ball screw pair.Let’s not talk about whether Sun Lin can produce a high-precision rack and pinion under the existing conditions. If rack and pinion transmission is used on a small CNC machine tool, it is lucky that the positioning accuracy of the machine tool can be guaranteed to three wires. The moving speed is low. It is estimated that such a CNC machine tool has just been researched and will be killed by the customer.

"What is the pursuit of customers to buy CNC machine tools? Machining accuracy is the first pursuit of our machine tool manufacturers. What customers pursue is not only the machining accuracy of machine tools, but also the processing efficiency of machine tools! We cannot improve the quality of our machine tools. Rigidity reduces the cutting efficiency of machine tools! Now many customers, especially the largest customer base of our machine tools, are not state-owned factories. They are private enterprises and private bosses that are gradually increasing! They buy CNC machine tools mainly for earning Money." Yun Fei said to a group of Chinese and Soviet designers headed by Sun Lin and Savavsky who were discussing whether to reduce the rigidity of the machine tool in order to strengthen the rigidity.

He didn't expect that Sun Lin would actually use the rack and pinion transmission scheme that he had killed himself on the 6132 CNC lathe they produced.

"Now we must launch our products as soon as possible. Otherwise, when the market is divided up by other machine tool companies, our products, even if they are better than others, will not have a big market."

"We must be guided by the market, what the market needs, and what kind of machine tools customers need. We must launch what kind of products. After our first batch of CNC lathes enter the market and get the customer's approval, we will then develop according to the market According to the situation, the customer needs to develop new products. There is only one thing here. No matter what kind of ideas you have, you must not use rack and pinion transmission on a lathe with a rotation diameter of less than [-]. Deny that design plan. I will never let him pass Yes!" Yun Fei didn't care that Sun Lin was not his employee right now.

It has been almost a month, and the design of the new CNC lathe has not yet come out, but the design of the CNC milling machine is coming to an end.Perhaps it is precisely because of this that they have the mind to spend time here and apply the rack and pinion drive design to small CNC lathes.

Sun Lin smiled when he heard Yun Fei's strong tone.

Yunfei said so.That is to say, as long as the first batch of 6132 small CNC machine tools designed by Jiuyi Heavy Industry can gain a firm foothold in the market, it is necessary to start research on heavy-duty lathes with a turning diameter of more than one meter.

What are the advantages of small CNC machine tools?

Heavy duty CNC machines.In China, a country with an increasing degree of industrialization, it is the most important key equipment.No matter what you do, it is impossible for you to extend the guide rail of a small lathe with a turning diameter of only three or four hundred millimeters to eight meters or even ten meters?Even at that level, it is simply not possible to produce heavy parts that weigh in tons.

A guide rail that is not wide, after being lengthened, cannot stabilize the structure at all.

In industrial production, the production of heavy parts is the key.

The spindles of some large machine tools can even be tens of tons or hundreds of tons, and it is impossible for small machine tools to drive them.Not only because the bed structure design should be determined according to the domestic production situation, but the material is also a very critical issue.

Now the spindle of Jiuyi Heavy Industry's CNC milling machine is stuck by the material problem.

In the Chinese Academy of Sciences, Sun Lin and the others have used this material for many experiments, but they have never been successful.

Domestic ones are not good because of material problems, and foreign ones are because the domestic heat treatment process cannot meet the design requirements, resulting in the machining of the spindle under high-speed rotation for a long time is prone to metal fatigue...

Now Jiuyi Heavy Industry has become a research workshop as a whole.

There is no major problem in the mechanical processing workshop. After all, many of the workshops are full of experienced old workers, and quite a few of them are skilled.Just like when Yun Fei first came to Qingfeng Machinery as a master craftsman, he performed a car slender pole that surprised all the turners in the factory. In the eyes of these master craftsmen who came out of the mountain, they were not something!

Yun Fei is in Jiuyi Heavy Industry, but now he never dares to go to the workshop to show off, otherwise, he will be humiliated by those unruly workers, and his young boss will not be able to step down.However, in theory, Yun Fei speaks clearly and logically, and often frightens those masters who think they are the best in the world. If the design accuracy requirements on the drawings are met, or the production efficiency cannot be improved, these workers will definitely sneer at Yun Fei, the idle boss who ran to the production workshop to guide him blindly.

Every time the workers feel that it is impossible to achieve, Yunfei can solve many processing problems that make these master craftsmen extremely headache.The masters don’t know the existence of Du Niang, let alone that in this world, somewhere, there are all kinds of big guys who have nothing to do with a day’s work. They specially design some super-precise parts and let others help them. solve.

Otherwise, when discussing the processing technology of various large-scale complex parts, everyone thinks that the processing technology arranged by themselves is the most reasonable, the most effective, and the most effective guarantee of processing accuracy!In this way, it will be cheaper for beginners like Yun Fei who only know a little bit.

What Yunfei learned on Du Niang, especially those professional websites about machinery, far surpassed what he learned in school.Because many of the things that big players show off are their untold secrets in reality.If it weren't for the east wind to overwhelm the west wind, it would be impossible for some irrelevant Xiaobai to know.Especially the settings of various parameters, which were obtained through countless experiments and summaries conducted by many factories.

"Xiaoyun, the sample of the spindle of the testing machine has been made now, but how do we do the dynamic balance?" Sun Lin saw the spindle of the CNC milling machine with countless steps and the precision reached level [-] in front of him. Very difficult.

Now the processing has been completed, but Jiuyi Heavy Industry does not have the key equipment for dynamic balance at all.

In the whole of China, it is estimated that there is no professional equipment for dynamic balancing of high-speed rotating spindles.

The first CNC milling machine designed by Jiuyi Heavy Industry now needs only this spindle for dynamic balancing.

"Using the simple method, install rotors on both sides, let the main shaft reach the speed of [-] revolutions and measure continuously, and after it stops, remove the excess margin..." For this, Yunfei can only use the simple method.

Even in his time, in the entire city of Rongcheng, the dynamic balancing equipment that could make relatively large shaft parts would not add up to more than one slap.

If it is those heavy-duty high-speed rotary spindles of hundreds of kilograms or even tons, dynamic balancing must be done even more.

"Old Zhao, you and Guderian will have to do the assembly this time. If the assembly can achieve the accuracy of the design, our 6132 and 6140 will be finalized..." After all the parts are When it was placed in the dust-free assembly workshop, Yun Fei said to Zhao Bingbiao who was about to direct people to start the most basic mechanical assembly.

Although the previous prototype did not become the finalized product of Jiuyi Heavy Industry, it was not because the assembled machine tool did not meet the design accuracy, but because the design in many places was not very reasonable.

Yun Fei has seen countless machine tools. Even the most trashy CNC machine tools in that era would definitely be relatively high-end CNC machine tools now.So he didn't want the machine tools produced by his company to be at the same level as those CNC machine tools on the market.

To do it, you must do the best you can achieve.

If it weren't for the changing market situation, Jiuyi Heavy Industry would face the danger of breaking its capital chain, otherwise, Yun Fei would never let these CNC machine tools, which in his eyes are still defective products, go to the market. (To be continued..)

ps: Bow down and thank Bingzhihen, readers who are about to pass, and Red Pen Longmo for their big rewards.Calabash was inadvertently grateful.

Now I find that everyone just reads silently every day, and doesn’t like to vote anymore. While reading, everyone delays for a few seconds to vote for recommendations. If you don’t vote, it will be a waste...