Although Lin Fan arrived at the competition venue in advance in the afternoon, he was still at the end of the line.

The competition of a floor boring mill is not the same as the competition of measurement. Because the machine tools are scattered in all corners of the workshop, in addition to a chief referee for the boring and milling machine competition, each machine tool also has a referee and a videographer.

The referees are all experienced masters who are responsible for observing the contestants for illegal operations, and the videographers are responsible for recording the contestants' competition process throughout the process. This is also to prevent some participants from having doubts about their results and being able to give first-hand information.

The chief referee first sent the drawings of the floor boring and milling machine competition to everyone, and then read out the rules of the competition with a megaphone.

Halfway through the reading, the whispers in the queue began to turn to skepticism.

"What are you kidding, come to a competition, why are you still doing with surface processing?!You count carefully, you have to process two horizontal arc surfaces and one vertical arc surface on this workpiece alone, isn't it embarrassing?!"

"It's nothing to process the arc surface, the key is that they don't give enough time, just 3 hours of competition. It took us more than an hour to simulate the verification process alone......"

"Hongli Group is becoming more and more unreliable, which is to let us participate in the competition, obviously it is to make us happy!"

……

The more the people in the team talked, the more angry they became, and they had the posture that they would not give up until they received an answer.

In fact, I can't complain about these contestants. Surface machining is originally a difficult point in CNC machine tool processing, in addition to the performance requirements of the machine tool is particularly high, the skills of the operator is also a high test.

"Quiet, quiet!" shouted the referee at the front of the line. It wasn't until the voices were a little hoarse that everyone quieted down a little.

The chief referee took a sip of water from the white porcelain jar in his hand, cleared his throat and said: "The difficulty of our boring and milling machine examination has increased, which is the result of joint discussion between the Provincial Machinery Association and various co-organizers. The reason why I didn't notify you in advance is that I can test your true level more accurately. ”

Lao Tzu has been working for so many years, and he has never processed curved surfaces. If you say in advance that you want to process the curved surface, Lao Tzu will simply not come!" A grumpy old man in his 30s stepped forward and pointed at the tip of the chief referee's nose and scolded.

The chief referee threw the white porcelain jar at the feet of the scolding old brother and slapped away the other party's still raised hand: "Lao Tzu? Who are you? Lao Tzu? You don't have a few beards, and you have a lot of problems! Not satisfied, right? If you are not satisfied, get out! You still still don't listen to you! I repeat, this difficulty is a plan that all our units discuss together, and it was decided from the beginning without prior notice! If anyone is still not satisfied, they can leave now!"

The grumpy brother probably didn't expect that there would be such a referee, and he was scared and stunned.

He opened his mouth and returned to the middle of the line with a red face.

The chief referee didn't intend to let him go, and pointed in the direction of the grumpy brother and said loudly: "I said the last time, there are those who are not satisfied with this provincial competition we organized, who have not learned surface processing after working for half a lifetime, and who are not dry in their mouths, I will give you a minute, and you can leave the field early......"

After a minute, not a single person in the group moved.

Although it is true that there is some trouble in surface processing, everyone present is the best selected by each city, how can they not even do this operation. The grumpy old brother probably also wanted to take the opportunity to coax and make some gains.

"Since no one is leaving, everyone agrees on the rules of this competition. The chief referee looked around and nodded with satisfaction, "I guess everyone knows their own game machine, so I won't talk nonsense here, everyone will go back to their respective machines to get a general familiarity with the performance of the machine tool, and ten minutes later, the game will officially begin." ”

Lin Fan came to his machine tool.

The machine tool in front of him looked inconspicuous, but Lin Fan knew that the price of this machine tool was not ordinarily expensive.

The brand of the machine tool is German Mattek, and if it is distinguished by its processing capacity, this machine can basically be defined as a "large" floor-mounted CNC boring and milling machine machining center.

A few days ago, Lin Fan used the Parma machine tool in the Fukang factory, which can only be regarded as a little brother compared to the machine tool in front of him.

If it is a new Matech large-scale CNC boring and milling machine machining center, the cost of this machine tool alone will be more than 30 million, in addition to the cost of the foundation and so on.

In order to do a good job in this provincial competition, this Hongli Group is willing to take out such an expensive machine tool as a competition tool......

Having said that, what kind of difficulties is Hongli Group facing?

Lin Fan muttered in his heart as he started the machine tool quickly.

There are many operating systems equipped with CNC machine tools in the machining industry, such as Siemens, FANUC system, domestic Baoyuan system and so on. However, the mainstream operating system in China is the Siemens system, especially the five-axis machining center, and the most common version is the 840D version in the Siemens system.

It is also a German brand, and this machine from Matec naturally uses a Siemens system.

Of course, for Lin Fan, no matter what version of the operating system of the machine tool is, it is a matter of handy. It's just that the Siemens 840D system runs more smoothly.

Return to zero, debugging ......

There was no problem with the operation of the machine tool, and Lin Fan began to study the workpiece that had been pressed on the machine tool table.

The lower half of this workpiece is a cube and the upper half is irregularly shaped. Combined with the information on the drawing, the material of this workpiece to be machined is QT400.

Among metal materials, QT (ductile iron) 400 is a material with relatively good processing performance among iron-carbon alloy materials, but its brittleness and vibration cancellation performance are far from catching up with gray iron. But this in front of you

The workpiece looks like a pedestal, but instead of gray iron, ductile iron is used......

I don't understand. Lin Fan rubbed his head and decided not to think about these messy thoughts.

"Beep beep beep ......" A whistle sounded, and the competition of the landing boring and milling group officially began.

Before coming to the provincial competition, Lin Fan deliberately used the part-time job value to upgrade the intermediate boring and milling operation skills in the system to the advanced level. If the intermediate operation skills are a little difficult for surface machining, the advanced boring and milling operation skills are more than enough.

An hour and a half later, when everyone was still busy simulating and verifying, Lin Fan was the first to complete the competition.

(End of chapter)

Wonderful!

(m.. = )