Chapter 1155

Before the end of the speech, Zhuang Jianye went to the nb-8600 five axis CNC skin milling machine, pointed to the equipment that was processing parts, and continued to introduce: "in the past, the shape of the inner surface of the skin surface of Yun 15 was relatively simple, which could be processed by the three axis CNC milling machine.

However, the internal structure of yun-18nb is more complex, and the 3D milling machine can't process the internal complex mesh shape very well, which needs the latest 5-axis CNC skin milling machine to complete.

After all, nb-8600 5-axis CNC skin milling machine compared with the previous 3-axis 860 type spindle speed increased to 10000 revolutions per minute, processing speed increased to 10 meters per minute, processing a piece of 3 mm thick skin takes only half of the original CNC washing machine.

In addition, the equipment also has a function, which is to integrate the automatic hole making performance. As we all know, it is necessary to add structural reinforcements such as stringers and shear angle pieces in the skin to form a complete aircraft frame, so riveting holes must be reserved on the skin.

Generally speaking, there are 460 such holes in one skin of the middle fuselage of the yun-18nb transport aircraft. There are 17 such skins in the front and middle fuselage of the whole yun-18nb transport aircraft, and 7820 holes need to be punched.

In order to process the hole better, the bottom of the machine is equipped with two vacuum adsorption furniture, which can realize flexible tooling. With the help of computer, the machining accuracy can be controlled within plus or minus 0.2mm.

In addition, due to the thermal expansion and cold contraction of metal, it has a great impact on the accuracy of hole making. We have also integrated a set of temperature compensation function on nb-8600, which can be used to accurately control the accuracy of skin process hole under different temperatures on CNC machine tools.

All three functions are at the leading level in the world today. "

Listening to the introduction of Zhuang Jianye, the leaders and leaders of the army, looking at the parts being processed on the nb-8600 five axis CNC skin milling machine, all nodded with satisfaction.

After introducing the nb-8600 five axis CNC skin milling machine, Zhuang Jianye took the people to move on, pointed to another large-scale equipment being processed, and continued to introduce: "this is the nb-9800 five axis CNC riveting machine just applied by our Tengfei group.

It has been said before that in the manufacture of large aircraft fuselage panels, stringers, shear angle pieces, frames and skins should be riveted into small panels, or these panels should be butted into large panels. In the past, semi-automatic riveting machines were used to produce these panels.

The biggest trouble of this kind of semi-automatic riveting machine is that it needs manual marking in the riveting area, which is a very technical work. It not only needs extremely sophisticated experience, but also causes extremely serious errors if it is careless. The efficiency is very low. It usually takes a week to make a three meter long small panel.

To this end, we Tengfei group through continuous research, developed this nb-9800 five coordinate NC riveting machine, without marking operation, only one person can complete the automatic positioning, within two days can complete the manufacturing of 10 meters long large panel, and realize the complete automation of aircraft panel manufacturing. "

If the previous nb-8600 five axis CNC skin milling machine is just amazing, then the nb-9800 five axis CNC riveting machine just introduced by Zhuang Jianye has completely surprised the leaders and leaders.

Facts speak louder than words. No matter how brilliant Zhuang Jianye's tongue is, he can't resist the wishes of these leaders.

Nb-9800 five coordinate NC riveting machine is really one person up and down, and the whole machine is only five meters long and four meters high. The flexible fixtures on both sides can hold up to ten meters long panel blank.

Both sides of the mechanical arm, an adsorption stringer, a holding shear triangle, under the guidance of the photoelectric probe, through the computer accurate installation in the need of fixed place, immediately riveting machine head began to slowly drop, with the bang sound, row after row of rivets will accurately connect several parts together.

It's smooth and accurate.

The most important thing is the high efficiency!

In this way, with three points of exclamation and seven points of surprise, the big leaders and others continue to move forward in No. 0 workshop with Zhuang Jianye's career, such as nb-1600 slide rail type automatic drilling and riveting machine.

Nb-2800 CNC stringer milling machine, nb-7500 large five axis gantry milling machine and other equipment let people see the blood surging, eager.

After visiting the surrounding equipment, Zhuang Jianye led the big leaders to an assembly station, pointed to the assembly platform composed of multi-functional assembly vehicles that can change the height, length and width at will, and said: "this is our No.1 assembly area. Thanks to the wide application of our high-precision indoor laser measurement and positioning system and the support of supporting numerical control equipment, I am very happy We have upgraded the pulsation I assembly line which can only be used for small aircraft to pulsation III production line which can produce fighters, helicopters and large aircraft.

At the moment, the place we occupy is working area 1 of pulsation III production line, which is mainly responsible for the general assembly of the front fuselage, middle fuselage, rear fuselage, left and right wings and tail sections.Dear leaders, please look over there... "

Zhuang Jianye said, holding out a hand, not far from a few are operating portable notebook computer technicians: "there. It is to operate the laser positioning system in front of the computer. With this system, the accurate docking error of the fuselage can be controlled within plus or minus 0.25 mm. After the docking is successful, nb-1600 slide rail type automatic drilling and riveting machine can carry out accurate drilling and riveting.

It is with this method that we are confident that we can finally assemble a yun-18nb transport in three days, because our designed station has a very high degree of automation, and the installation efficiency is very fast. Usually, the workload of a station is three days, and after three days, all the stations will rotate again and again, so as to form an efficient and fast assembly process like pulse beating Cheng

After hearing this, the big leaders and the big leaders in the army all nodded suddenly, and then concentrated on the cold but well-organized work scene in the huge factory building.

All of a sudden, the white eyebrows of the military leaders gently picked up two times, turned around and looked, and suddenly asked: "Xiaozhuang, I think the aircraft produced on your station is not a large transport aircraft, but more like a fighter plane that you have never seen before."

"The old chief really has a good eye. I really can't hide anything from you. Not long after the completion of our No.0 workshop, we always need to use a model to test the situation of our pulsation III production line. So, I'll just take a model and try it. It's not a new model. It's the improved Zhenlong V of Zhenlong II, and it's also featured It's nothing. It's just that there's an extra VTOL function... "

When Zhuang Xin said these words, the big leader didn't have much at first. He just thought it was an ordinary compliment. But when he heard it, his old eyes opened up unconsciously, and immediately his voice rose abruptly: "what do you say? Did you come up with the VTOL? "