Intelligent Industrial Empire

Hearing what Yun Fei said, Ren Zhiguo nodded in embarrassment.

When he came to Qingfeng Machinery, he always bit the bullet. After all, this thing was a bit unnatural.But he has no choice. This is a task and must be completed. If Qingfeng Machinery really does not accept this batch of products, Kmart will face a dilemma.

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

There are many processing factories that want foreign trade orders from Kmart, but no one can compare with Qingfeng Machinery in terms of technical strength, processing technology, and production capacity.Even many processing plants only have two or three CNC machine tools in their hands.And their factory does not have a master who is very familiar with CNC machining like Yunfei, and the machining accuracy cannot be guaranteed at all.

For foreign trade parts processing, the requirements are the most stringent.The tolerance formulated by foreigners, even if it exceeds 0.001mm, will not accept it. Even if it exceeds such a tolerance, it will not affect the service life of the part.More importantly, most of the parts of foreigners are stainless steel, which is more difficult to process. If there is no rich processing experience, it is difficult to guarantee the surface roughness required by foreigners (usually 1.6, a few less demanding 3.2). Although such a surface roughness can be easily achieved with a grinder or grinding machine, most of the customers in the hands of Camat require the preservation of tool marks!

There are a lot of parts with a lot of ordinary steel, but the most common 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 the processing, or the surface finish requirements are not 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 no surface scratches or bumps for processed products from the mainland.Otherwise, the payment will be refused, of course, the use will still be used.

In this way, the process requirements for the processing of foreign trade products are very strong.If you do not have a wealth of experience in processing various materials and have not seen more complex products, it is easy to lose money in foreign trade processing parts.Of course, if the product is processed in strict accordance with the drawings and the foreigner can't spot any faults, the profit will be considerable.

The drawings Yunfei is holding now are also parts of foreign trade products.It was just changed hands by others.The processing is difficult, the requirements are high, the risks are high, but the profits are low, and no one will agree to such a thing.If Qingfeng Machinery accepts this order, it means that their profits have been taken away by the factory that changed hands...

Kmart did this because he knew that Qingfeng Machinery could not refuse.Most of Qingfeng Machinery's CNC production capacity is processed for foreign trade parts, and the middleman is Kmart.As a middleman, Kamath knows Qingfeng Machinery quite well.

Either Qingfeng Machinery abandons its current development momentum and leaves millions of equipment idle before looking for business; or it accepts this order and spends money on the development of its own factory.

"Old Ren, I have seen these pictures. There are two products that we can't make. A four-axis machining center is necessary to ensure accuracy. The space tolerance of 0.02mm on this one is definitely not guaranteed by multiple processes. It is necessary to use a four-axis machining center to ensure a clamping to ensure the space dimensional tolerance, otherwise the assembly will become a problem. There is also this one, two cross-closed spiral grooves, which cannot be done without a four-axis machining center. Moreover, the accuracy of the position degree is required to be less than 0.05mm. Besides, this kind of shaft with spiral grooves can be used at a speed of 30,000 revolutions per minute. If it is not dynamically balanced, the huge torque will make the shaft run at high speed. Cracking. I really convinced you. I don't have the resources in my hands, so I dare to take such jobs. I don't want to think about how many four-axis machining centers are now on the whole continent." Yun Fei quickly read the drawings in his hand.Yang laughed at Ren Zhiguo with the two drawings that must be made using a four-axis machining center.

Yun Fei also heard the conversation between Ren Zhiguo and Wang Qingfeng just now.It was funny in my heart.This is mostly a drawing of the military.Looking at the precision of the parts, Yun Fei really couldn’t figure out what it was used for, a drive shaft, with a speed of 30,000 revolutions per minute. He had encountered it before, but no matter how you asked, that The owner of the processing plant who had a good relationship with him did not tell him.

After all, in the processing industry, many people need to sign a confidentiality agreement before getting an order.

On the whole, the products on these drawings, whether in complexity or accuracy requirements, are higher than what Qingfeng Machinery has done now.

Since it's not a foreigner's job, in China, according to Yun Fei's knowledge, the civilian products of this era are still so sophisticated.Maybe there are, but they are all done in domestic military factories. He has never seen the kind of high-end precision dust-free military precision machining workshops.

"Haha..." Ren Zhiguo could only smile bitterly at Yun Fei's ridicule.He hadn’t seen these drawings, but his boss didn’t understand machining at all. She had to force herself to find a factory to make these complex parts first, and she could only bring them to Yunfei. The magical young man asked for help.

After all, the products on these drawings are the most critical part of some equipment that cannot be said.It has been placed in the military factory for several years, and it has not been resolved. After all, no one can do it without proper processing equipment, right?

"Is it possible to find a solution?" Ren Zhiguo has always felt that there is no processing problem that Yun Fei can't solve.

"Can you cook rice without rice?" Yun Fei asked Ren Zhiguo back.

Wang Qingfeng was shocked by Ren Zhiguo's words, and now he still hasn't recovered. He shrank on the sofa, smoking one by one.

He knew that Kmart wanted half of its own production capacity, and it would certainly not process the drawings in Yunfei's hands.That's definitely a large quantity of products.He is weighing in his mind whether it is cost-effective to bear the loss after refusing, or to abandon Kmart’s business and open up new customers.

Ren Zhiguo was speechless.

There was silence in the smoky office.

Ren Zhiguo was considering what would happen to him if he could not complete this task; and Yunfei was recalling whether there was any way to make the two most difficult products without a four-axis machining center.

But no matter what I think, I can't think of a solution.The accuracy requirements of the space size, repeated clamping, can not guarantee the accuracy of repeated positioning, the cumulative error will definitely exceed 0.02mm.The other closed spiral with a ternary equation cannot guarantee that the rotation of the product during processing can perfectly match the other three axes of the machining center.

After all, the machining center is controlled by a computer, and people cannot guarantee precise coordination 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 three-linkage is not good, it has to be four-axis four-linkage!Thinking of this, Yun Fei 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 looking at each other like a cockfight.

"Let's talk, if you have any requirements, as long as you can solve them, it's easy to say." Ren Zhiguo knew clearly that it would be impossible to get these two parts out without paying a price.Anyway, the parts on these drawings have cost a lot of money after years of experimentation.

"Adding a rotary table to the machining center means converting a three-axis machining center into a four-axis machining center. This is not only very expensive, but may also take a long time." Yunfei didn't want to say this method. Yes, although the rotary table looks very 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 after expansion.However, the rotation angle accuracy 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, and so on 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 also higher than the three-axis machining center?

Many people once said that in the mainland, as long as any kind of foreigner's high-end equipment is copied, the entire world's weak industrial countries will be happy.Yun Fei felt that it was really nonsense.

Not to mention other things. For the four-axis machining center alone, twenty years later, although many domestic manufacturers are able to make it, the processing accuracy cannot be compared with the imported ones at all, and the cost is even higher than that of foreigners. The equipment is quite high.

There are a lot of domestic talents, and companies that do not have most of them only value immediate benefits.As long as a four-axis machining center can be produced, even if it is simple, there is a huge market demand on the road.Research on a five-axis linkage machine tool?Don't be kidding, let's not talk about other things, just investment can make most people retreat from that terrible ambition!

Regardless of the five-axis linkage CNC machine tool, it adds a rotation function to the X-axis to realize the angle rotation of the fourth axis compared with the four-axis machining center. There is only one more Z-axis swing, but this is a small point. Wanting to cross is like reaching the sky!

Moreover, most of the domestic four-axis machining centers in 20 years will only add a fourth axis to the worktable, which is the lowest difficulty four-axis machining center in Chengdu!