Before he finished speaking, Zhuang Jianye had already walked to the nb-8600 five-coordinate CNC skin milling machine, pointed at the equipment that was processing parts, and continued to introduce: "In the past, the shape of the skin surface and inner surface of the Yun 15 was relatively simple. Three-coordinate CNC milling machine processing.
"But the internal structure of Yun-18nb is relatively complicated. The three-axis milling machine cannot process the complex internal grid shape very well. It requires the latest five-axis CNC skin milling machine to complete it.
After all, the spindle speed of the nb-8600 five-coordinate CNC skin milling machine has been increased to 10,000 rpm compared to the previous three-coordinate 860 model, and the processing speed has been increased to 10 meters per minute. It only takes only It turns out to be half of the CNC machining bed.
Not only that, this equipment also has a function, which is to integrate automatic hole making performance. As we all know, stringers, shear angle pieces and other structural reinforcements must be added to the skin to form a complete aircraft frame, so the skin must be pre-assembled. Leave riveting holes.
Under normal circumstances, a skin on the middle section of the Y-18nb transport aircraft has an average of 460 such holes. There are 17 such skins on the front and middle sections of the entire Y-18nb transport aircraft, requiring 7,820 holes.
In order to better perform hole processing, the bottom of the machine tool is also equipped with two vacuum adsorption furniture, which can realize flexible tooling. Together with the computer, the processing accuracy can be controlled at plus or minus 0.2mm.
In addition, due to the thermal expansion and contraction of metal, it has a great impact on the accuracy of hole making. We have also integrated a temperature compensation function on the nb-8600. Using this function, we can accurately make holes on the CNC machine tool. Control the accuracy of skin process holes at different temperatures.
All three functions are at the leading level in the world today. "
Listening to Zhuang Jianye¡¯s introduction, all the leaders and chiefs, including senior leaders and military leaders, looked at the components being processed on the nb-8600 five-coordinate CNC skin milling machine, and they all nodded with satisfaction.
After Zhuang Jianye introduced the nb-8600 five-coordinate CNC skin milling machine, he led everyone to continue walking forward, then pointed to another large-scale equipment being processed, and continued to introduce: "This is the nb that our Ascendas Group has just applied. ¡ªModel 9800 five-coordinate CNC riveting machine.
As mentioned before, the manufacture of large aircraft fuselage panels requires riveting stringers, sheared corners, frames and skins into small panels, or butting these panels into large panels. In the past, the production of these panels used is a semi-automatic riveting machine.
The biggest trouble with this kind of semi-automatic riveting machine is that it requires manual marking in the riveting area. This is a very technical job that not only requires extremely sophisticated experience, but also can cause extremely serious errors if you are not careful. The efficiency is very low. It usually takes a week to manufacture a small three-meter-long panel.
To this end, our Tengfei Group has developed this nb-9800 five-coordinate CNC riveting machine through continuous research. It does not require marking operations and can complete automatic positioning with only one person. It can complete a 10-meter-long work within 2 days. The manufacturing of large-scale wall panels realizes complete automation of aircraft wall panel manufacturing. "
If the previous nb-8600 five-coordinate CNC skin milling machine was just amazing, then the nb-9800 five-coordinate CNC riveting machine just introduced by Zhuang Jianye completely surprised all the leaders and chiefs.
Facts speak louder than words. No matter how eloquent Zhuang Jianye is, he cannot compare with what these leaders want to see with their own eyes.
The nb-9800 five-coordinate CNC riveting machine requires only one person to go up and down. The length of the entire equipment reaches five meters and the height is four meters. The flexible tooling fixtures on both sides can clamp a wall panel blank of up to ten meters long. .
The mechanical arms on both sides, an adsorbed stringer and a grasping shearing triangle, were accurately installed at the place that needed to be fixed through the computer under the guidance of the photoelectric probe. Then the riveting head began to slowly descend, with the banging sound. With a sound, rows of rivets accurately connect several parts together.
It is both stable and accurate.
The most important thing is that the efficiency is extremely high!
In this way, with three points of exclamation and seven points of surprise, the senior leaders and others followed Zhuang Jianye's work in the zero workshop and continued to move forward with a series of products such as the nb-1600 slide-type automatic drilling and riveting machine.
nb-2800 CNC stringer milling machine, nb-7500 large five-axis gantry milling machine and other equipment are all exciting and fascinating.
After visiting the surrounding equipment, Zhuang Jianye led the leaders and others to an assembly station, pointed to the assembly table composed of multi-functional assembly vehicles that can change the height, length, and width at will and said: "This is one of our No. 1 assembly area, thanks to the extensive application of our high-precision indoor laser measurement and positioning system and the support of supporting CNC equipment, we have upgraded the Pulse 1 production assembly line that could only be used for small aircraft to one that can produce fighter jets. , helicopters and large aircraft??3 type production line.
The place we occupy at the moment is the No. 1 work area of ??the Pulse 3 production line, which is mainly responsible for the final assembly of the front fuselage, middle fuselage, rear fuselage, left and right wings and tail section.
Leaders, please look over there"
Zhuang Jianye said, reaching out and pointing to several technicians who were operating portable laptops not far away: "There. It is to operate the laser positioning system in front of the computer. Using this system, the accurate docking error of the fuselage can be controlled. After the positive and negative 0.25mm docking is successful, the nb-1600 slide-type automatic drilling and riveting machine can perform precise hole making and riveting.
It is precisely using this method that we are confident that we can assemble a Y-18nb transport aircraft in three days, because the workstation we designed has a very high degree of automation and the installation efficiency is very fast. Usually the workload of one workstation is three days, and after three days, all workstations will be rotated, and this cycle will form an efficient and fast final assembly process as fast as the pulse. "
After hearing this, the senior leaders and senior military leaders all nodded in surprise, and then looked attentively at the deserted but orderly work scene in the huge factory.
Suddenly, the gray eyebrows of the military leader slightly raised twice, he turned his head left and right, looked around, and asked abruptly: "Xiaozhuang, I see that the aircraft produced at your workstation are not large-scale aircraft." The transport aircraft is more like a fighter jet that I have never seen before.¡±
"The old chief has really good eyesight. I really can't hide anything from you. Our No. 0 workshop has just been completed not long ago. We always need to use a model to test what our Pulse 3 production line is like. So, it's just casual. Let¡¯s practice with a model and give it a try. It¡¯s not a great new model, it¡¯s an improved version of Dragon 2, Dragon 5. It doesn¡¯t have many features, but it has an extra vertical take-off and landing function¡¡±
When Zhuang Xin said these words, the big leader didn't think anything of it at first, just thinking it was an ordinary compliment. But when he heard a pair of old eyes behind him, he opened his eyes unconsciously, and then his voice suddenly rose: "What did you say? What did you guys do? A vertical take-off and landing fighter?"
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