Smart Industrial Empire

() Hearing Yun Fei's words, Ren Zhiguo nodded embarrassedly.

When he came to Qingfeng Machinery, he had to bite the bullet. After all, this matter was a bit out of the ordinary.But he can't help it. This is a task that must be completed. If Qingfeng Machinery really does not accept these products, Kamart will face a dilemma.

Before coming here, the boss said that this batch of work must be packaged with the foreign trade products in hand. Whoever wants to make foreign trade products with high profits must accept this domestic order with little profit.

There are many processing factories that want foreign trade orders from Kamat, but none of them can compare with Qingfeng Machinery in terms of technical strength, processing technology, and production capacity.Even many processing factories only have two or three CNC machine tools in their hands.And their factory doesn't have a master chef like Yun Fei who is very familiar with CNC machining, so the machining accuracy cannot be guaranteed at all.

The processing of foreign trade parts requires the most stringent requirements.Even if the tolerance made by foreigners exceeds 0.001mm, they will not accept it, even if the tolerance exceeds such a little, it will not affect the service life of the parts at all.More importantly, most of the foreigner's parts are made of stainless steel, which is difficult to process. If there is no rich processing experience, it is difficult to ensure the surface roughness required by the foreigner (generally 1.6, and a few less strict requirements of 3.2). Although such surface roughness is easy to achieve with a grinding machine or a grinding machine, most of the customers in the hands of Kamart require to keep the knife marks!

There are also many parts that are made of ordinary steel, but the most common one is aluminum.Although aluminum is easy to process, it is not enough due to the plastic deformation of the material, it is easy to deform the parts during processing, or the surface finish cannot be met.

The processing of foreign trade parts not only has high requirements for product quality, but also has higher requirements for surface quality. Many foreign factories require that the processed products from mainland China not be scratched or bruised.Otherwise, the payment will be refused. Of course, the use will still be used.

In this way, the technical requirements for the processing of foreign trade products are very strong.If you do not have rich experience in processing various materials and have not seen more complex products, it is easy to lose money in processing parts for foreign trade.Of course, if the product is processed strictly according to the drawings and no foreigner can find any faults, the profit will be considerable.

The drawings that Yunfei is holding now are also parts of foreign trade products.It's just been handed over by someone else.The processing is difficult, the requirements are high, the risk is high, and the profit is very low. Anyone who changes it will not agree to such a thing.If Qingfeng Machinery accepts this order, it is equivalent to their profits being taken away by the factory that changed hands...

The reason why Kamart did this was because he knew that Qingfeng Machinery could not refuse.Most of Qingfeng Machinery's CNC production capacity is for foreign trade parts processing, and the middleman is Kmat.As a middleman, Kamart has a good understanding of Qingfeng Machinery.

Either Qingfeng Machinery will give up the current development momentum, let millions of equipment idle, and then look for business; or accept this order and spend money to buy the development of its own factory.

"Old Ren, I have seen all these pictures. There are two products that we can't make. A four-axis machining center is required to ensure the precision. The 0.02mm space tolerance on this one is definitely not guaranteed by multiple processes. , it is necessary to use a four-axis machining center to ensure one-time clamping to ensure the tolerance of space dimensions, otherwise assembly will become a problem. There is also this one, two cross-closed spiral grooves, which cannot be made without a four-axis machining center , and the accuracy of the position is also required to be less than 0.05mm. Besides, this kind of shaft with a spiral groove can be used at a speed of [-] revolutions per minute. If there is no dynamic balance, the huge torque will make the shaft run at high speed Cracked during operation. I really convinced you that you dare to take on such a job without the resources in your hands. I don’t even think about it, there are several four-axis machining centers in the whole continent now.” Yun Fei quickly read the few photos in his hand drawing.Yang laughed at Ren Zhiguo with the two drawings in his hand that could only be made using a four-axis machining center.

Yun Fei also heard the conversation between Ren Zhiguo and Wang Qingfeng just now.I secretly felt funny in my heart.This is probably a military drawing.Looking at the precision of the parts, Yun Fei really couldn't figure out what it was used for. A transmission shaft with a speed of [-] rpm. He had encountered it before, but no matter how hard he asked, The owner of the processing factory with whom he had a good relationship didn't tell him either.

After all, in the processing industry, many jobs need to sign a non-disclosure agreement before getting an order.

On the whole, the products on these drawings are higher than those made by Qingfeng Machinery in terms of complexity and precision requirements.

Since it is not a job for foreigners, in China, according to Yun Fei's knowledge, the civil goods of this era are still so sophisticated.Maybe there are, but they are all made in domestic military factories. He has never seen what kind of high-end precision and dust-free military precision processing workshops are like.

"Hehe..." Ren Zhiguo could only smile wryly at Yun Fei's ridicule.It's not that he hasn't seen these drawings, but his boss doesn't know anything about machining, so she has to force herself to find a factory to make these complex parts first, so she can only bring them to Yun Fei, who is called The amazing young man called for help.

After all, the products on these blueprints are the most critical part of some unspeakable equipment.It has been placed in the military factory for several years, and it has not been resolved. After all, no one can make it without suitable processing equipment, right?

"Is there any way to solve it?" Ren Zhiguo always felt that there was no processing problem that Yun Fei couldn't solve.

"Without rice, can you cook rice?" Yun Fei asked Ren Zhiguo.

Wang Qingfeng was so shocked by Ren Zhiguo's words that he still hasn't come back to his senses. He shrank on the sofa and smoked one cigarette after another.

He knew that Kamart needed half of his own production capacity, and the drawings in Yunfei's hands would definitely not be processed.That must be a high-volume product.He was weighing in his mind whether it would be more cost-effective to bear the losses after refusing, or to give up Kamart's business and reopen customers.

Ren Zhiguo was speechless.

There was silence in the smoky office.

Ren Zhiguo was thinking about what would happen to him if he could not complete this task; while Yun Fei was recalling whether there was any way to make these two most difficult products without using a four-axis machining center.

But no matter how I think about it, I can't think of a solution.The precision requirements of the space size, repeated clamping, cannot guarantee the precision of repeated positioning at all, and the cumulative error will definitely exceed 0.02mm.As for the other closed helix with the ternary equation, there is no way to guarantee that the rotation of the product during processing can perfectly cooperate with the other three axes of the machining center.

After all, the machining center is controlled by a computer, and human beings simply cannot guarantee close cooperation in the four directions. After all, a person only has one pair of hands.

The only thing that can solve this is the four-axis machining center.Four-axis and three-linkage will not work, it must be four-axis and four-linkage!Thinking of this, Yun Fei already had an idea in his heart.

"Old Ren, it's not impossible to solve this job, but..." After smoking half a pack of cigarettes, Yun Fei raised his head to face Wang Qingfeng and Ren Zhiguo who were staring at each other like fighting cocks.

"Say, if you have any request, as long as it can be resolved, it's easy to talk about." Ren Zhiguo knew that it was impossible to get these two parts out without paying a little price.Anyway, the parts on these drawings have already cost a lot after several years of experiments.

"Install a rotary table on the machining center, that is, convert the three-axis machining center into a four-axis machining center. Not only is the price very high, but it may also take a long time." Yun Fei didn't want to say this method at first. Yes, although the rotary table looks simple, it is not a simple matter to coordinate with the other three axes of the machining center.

The three-axis machining center of the control system can be used by expanding it.However, the precision of the rotation angle of the rotary table, the motion control of the hydraulic workstation for the rotary table, the angle control of the single-chip microcomputer for the rotary table, etc., are all difficult problems.

If this problem can be solved, there will be no shortage of four-axis machining centers on the mainland.After all, a simple four-axis machining center is also a four-axis machining center, isn't it?That's higher than the three-axis machining center, isn't it?

Many people once said that in mainland China, as long as any kind of high-end equipment of foreigners is imitated, the weak industrial countries in the world will be happy.Yun Fei thought it was fucking nonsense.

Not to mention other things, as far as the four-axis machining center is concerned, after 20 years, although many domestic manufacturers can make it, the processing precision cannot be compared with imported ones, and the cost is still lower than that of foreigners of the same grade. The equipment is much higher.

There are many domestic talents, but most companies only focus on immediate interests.As long as a four-axis machining center can be produced, even if it is simple, there will be a huge market demand on the road.Research on five-axis linkage machine tools?Don't be kidding, let's not talk about other things, just putting in can make most people retreat from their lofty ambitions!

Don't look at the fact that compared with the four-axis machining center, the five-axis CNC machine tool adds a rotation function on the x-axis to realize the angle rotation of the fourth axis. There is only one more z-axis swing, but this is a small point. Wanting to cross is like ascending to the sky!

Moreover, most of the four-axis machining centers in China after 20 years will only add a fourth axis to the workbench, which is the most difficult four-axis machining center in Chengdu!