Intelligent Industrial Empire

These running CNC machining centers, because they are undergoing tests, are processing soft materials that are easier to cut and will not fly everywhere.The processing on the machine tool is generally some wooden molds that do not require high processing accuracy.

These are some molds used for sand casting to help the woodworkers in the smelting workshop. The tolerance units are originally counted in millimeters. However, during the test, the supervisors in the test workshop required them to be within 0.04mm. Tolerance to do it.

Only by making precision products can the actual machining accuracy of the machine tool be detected, and the machine tool can be improved or adjusted based on the data obtained after these processing.Continuously develop in the direction of higher accuracy.

"How many of the machines in that corner are also processing centers?" For the processing centers surrounded by fine protective nets, a group of people from the test team couldn't walk in and watch them, which was not addictive.

However, in the corner of this workshop, there is a space of more than 100 square meters isolated by glass. There are a few people in white coats who don’t know whether it is a worker or a researcher. Some foreign imports are viewed inside. CNC machining centers and those in the assembly workshop of Jiuyi Heavy Industry Co., Ltd. are similar to the CNC milling machines equipped with shields.

"That's the machining center that is undergoing heavy-load cutting tests!" Yun Fei hadn't planned to take these people into the constant temperature workshop separated by glass.

For the design of a CNC machine tool, many types of tests must be carried out. There are many types of cutting tests alone.

The heavy load cutting test is mainly used to test the rigidity of the machine tool.

In the Chinese CNC machining industry in the 1990s, it is estimated that not many companies were willing to use CNC machining centers that cost hundreds of thousands or even millions of dollars to rough machining blanks. Even Xinkaixing, the products processed by those machining centers, are many Most of the margins that need to be processed are removed on ordinary milling machines or other equipment, and only a small margin is left for rough machining on the machining center.

All this is because it is too difficult for China to get CNC machine tools!

In many cases, especially for the processing of some three-dimensional surfaces, the margin left by ordinary equipment for roughing is uneven, which is likely to cause the tool to be damaged during the cutting process.You know, most of the alloy tools used in China's CNC machine tools in this era are imported!A blade is hundreds of dollars, an alloy knife is hundreds of dollars!

After the assembly plants established by Taiwan CNC machine tool factories in the mainland provide machining centers to the Chinese market, the number of domestic machining centers continues to increase. Some larger companies have to recruit enough skilled workers because they cannot recruit enough skilled workers. Gritting teeth and using some machining centers with poor precision for rough machining of parts.They only discovered at that time that CNC machine tools, like ordinary machine tools, have high requirements for rigidity.

Yun Fei is a person who pursues perfection.

He deeply understands that in order to remain invincible in the fiercely competitive Chinese CNC machine tool market in the future, these delicate CNC machine tools must guarantee the quality.

After entering the 21st world, the machining industry, especially the mold processing industry, many of them are single-piece and small-batch production, which makes it impossible for these products to be divided into many processes like those of large-volume parts. Work step.

When processing complex single-piece and small-batch parts, turning, milling, tongs and even lettering can be processed directly on the machining center to be more efficient and save costs.If the rigidity of the CNC machine tool is too poor, and the roughing of the product parts takes about the same time as the ordinary machine tool, then what is the use of buying these machining centers at a high price?Once the processing time is too long, the processing cost of products produced in small batches in a single room may directly increase exponentially.

"Can you let us go in and have a look?" The same guy with two gold stars on his shoulders is very curious why there is an area in the workshop that is partitioned by glass.

From what they know, CNC machine tools do not need dust-free workshops or constant temperature workshops.

Yun Fei wanted to refuse their request, but seeing the old man with a look of yearning, he could only nod his head and lead the crowd towards the door of the glass house.

When the door was about to be opened, Sun Lin ordered a female worker next to him to go to the storeroom to fetch dozens of earplugs and hand them to the crowd, then he opened the glass door after beckoning everyone to bring them.

As soon as the door was opened, the piercing sounds that were closed inside came out. If you don't wear earplugs, you might even be able to hear your teeth sore.Fortunately, the top of this workshop is not closed, otherwise, the sound inside this room will be louder.

"The machining centers inside can be regarded as complete finished products. But these are only the finished products we use for testing. The equipment inside are used for heavy-load cutting tests. When the test is over, this The equipment inside was basically scrapped..." Sun Lin almost yelled and explained to everyone. As for whether these people could understand what heavy load cutting was, he didn't bother to explain.

These things are too basic, and people who don't understand it are not useful even if they know it.Those who need to know can understand without his explanation.

"What is a heavy-load cutting test? You can understand it by stepping forward and looking at it." Yun Fei saw many people who were very curious, and those who were not curious were all confused. If you want to understand this matter, People explain, it's too difficult...

Most of the people in the glass room are operators transferred from production workers in the machining workshop of Jiuyi Heavy Industry. The researchers just collect data every other time.After all, this test is only to verify the design of the machine tool, especially the service life of the machine tool spindle and transmission components during heavy-duty machining.

"Lao Deng, this so-called heavy load test is that the cutting process of these machine tools is the maximum depth, the fastest cutting speed, and the maximum speed that the machine tool spindle can reach when the machine tool is designed. Sometimes, the test is carried out. In half an hour, the spindle may be scrapped." Yun Fei explained loudly to the old man.

The room is very noisy, especially the noise generated by the machining center during high-speed cutting with a large amount of tooling when it is running at high speed. The average person simply cannot bear it. When the tool on the CNC machine tool spindle is running at high speed, it will Produce a variety of very rigid sounds.And the sound will vary greatly depending on the depth of the knife and the material, but no matter what kind of sound, it will make people feel uncomfortable.

I visited this room very quickly. Even with earplugs, the sound inside can still reach people's ears.

"It's a prodigal! Dozens of millions of devices are actually used to do this like this!" As soon as they came out and took off the earplugs, the lieutenant general gritted his teeth and said to Yun Fei.

This is simply a waste!

The country buys these equipments every year and spends a lot of foreign exchange reserves, but the prodigal young boss of Jiuyi Heavy Industry is better, and can actually scrap several or even a dozen spindles every day!

How much is a spindle?

fifty thousand!

In this era when the per capita wage was less than 300, hundreds of thousands of Jiuyi Heavy Industry were wasted in this way.

But how did he know that if he does this every day, even the world's richest man can't afford to hurt him.

In the workshop of Jiuyi Heavy Industry, the total time to start a month will not exceed 30 hours, and the total value of the spindles scrapped every month will not exceed 200,000.Besides, these are all produced by Jiuyi Heavy Industry. Except for the materials, other costs are negligible. Otherwise, Jiuyi Heavy Industry's monthly profit of tens of millions is not enough for this laboratory.

Will Yunfei tell them that the cost of the precision spindle produced by Jiuyi Heavy Industry is only 8,000 yuan?

Will Sun Lin tell them?

meeting.

Unfortunately, Sun Lin does not care about production, purchase, or finance.The only thing he knows is that to produce such a spindle requires more than forty processes, and the heat treatment alone requires six times!

"Xiao Cao, don't scold someone else's prodigal at every turn. I said at the very beginning that when you come to visit, you just have to shut your mouth and visit. Look more, listen more, talk less! Xiaoyun, my old man is also very curious. Why did it cost such a large cost to conduct such an experiment that seemed to have no other effect except the prodigal?" Although he reprimanded the lieutenant general, the old man was also curious about this.

"Lao Deng, it is like this. Carrying out such experiments is not only to test the performance of the machine tools, but also to verify our design, processing technology and even materials. These CNC machine tools will have a long service life after they leave the factory. The spindle is the core mechanical component of a CNC machine tool. A machining center weighs less than one percent of the entire machine tool, but the price occupies one eighth of the entire machine tool. If it is always prone to problems, our reputation is Customers will become very poor. Who would dare to buy our products in the future?" Yun Fei explained to the old man why such an experiment was carried out.

"At the same time, only after such experiments can the spindles we design can withstand long-term higher-speed operation, so that we can continuously increase the spindle speeds of our products, and thus develop high-speed machines. Foreign machining centers have It can reach 18,000 revolutions, and ours has just exceeded 8,000 revolutions!"

Yun Fei's words made the old man nodded in satisfaction.

Those who do research should not be too petty.The more you invest, the greater the return, especially in high-tech industries.