The picture shows the wheeled tractor production line. Photo courtesy of China Yituo Source: Ministry of Agriculture and Rural Affairs Drawing: Wang Zheping

On the receiving platform, a Dongfanghong tractor was slowly lifted. The console starts, the handbrake is released, and the vehicle naturally slides to the refueling and water area. "Suddenly", the engine sounded, and the large wheeled tractor that had just rolled off the assembly line was driven to the commissioning site.

　　“每3分鐘，便有一台駛出。”中國一拖大拖公司副總經理薛志飛介紹，這座新型輪式拖拉機柔性智能工廠，具備年產4.5萬台大型輪式拖拉機的能力。

Tractors are the workhorse of agricultural equipment. In 3 years, China Yituo started construction in Luoyang, Henan, and in less than 0 years, the first Dongfanghong tractor in New China rolled off the assembly line here. Nowadays, the "big iron bull" gallops north and south of the river, how is it manufactured?

　　置身5萬多平方米的一拖智慧工廠，眼前景象不一般：沒有震耳欲聾的敲擊，沒有揮汗如雨的搬運。從底盤裝配到組裝成型，一條流動的U形總裝線串聯起各個環節。

"This final assembly line is the 'leader' of the smart factory. As soon as the dragon's head danced, the entire 'dragon body' swayed. Wang Yuzhe, director of the product research and development department of the big tow company, said that the U-shaped line makes full use of space, and there are more than 20 production lines upstream to serve it, "through the intelligent system, each link realizes efficient collaborative operation, and the production line is no longer an 'island' or 'single chain'." ”

As he spoke, a chassis weighing 4 tons steadily "walked" to the assembly line under the traction of an automated guided transport vehicle; On the aerial logistics track, the suspended truss robot lifts the cab and other components and delivers them to the designated position accurately......

"In the past, we used the 'crowd tactic' to do 'stall operations'. This is the most lively place in the factory, but also the most bitter and tiring place. Yang Tao, a veteran employee, recalled: the tonnage chassis has to rely on the crane and manual cooperation, "pulling, lifting, moving, shaking all rely on people, not to mention the smell of oil in the hands of the day, who does not stick a few plasters on the body?" ”

At present, a new generation of information technology is being integrated with agricultural machinery manufacturing. The smart factory not only realizes the automatic processing and production of large quantities of key parts, but also controls and manages the manufacturing process.

In the paint booth of the closed assembly line, the painting of the tractor chassis is underway. The waving robotic arm flexibly steers in a complex space, and the error of the paint film thickness is controlled at the millimeter level. "Before the smart factory was put into use, the painters had to wear protective clothing and work in the hot and stuffy heat. Now with programming, the robot can do it easily. Ai Zonggan, an employee of the process department, demonstrated how to do it on the spot - the system imports the 3D model, and the robotic arm automatically generates the spraying path and dynamically adjusts the parameters according to the temperature and humidity.

In 2015 years, the construction of Yituo intelligent manufacturing factory project started, which is the first large-scale agricultural machinery intelligent manufacturing factory in China. Recently, the "new wheeled tractor flexible intelligent factory" upgraded and built by relying on the project was selected into the list of the first batch of excellent smart factories in the country.

"What exactly is 'flexible'?"

"Look at these two tractors, what's the difference?" In the face of reporters' questions, Wang Yuzhe sold Guanzi. A closer look reveals that on the same assembly line, the 180-horsepower power-reversing model and the 0-horsepower mechanically shifting model are being assembled "side by side".

"That's 'flexibility.'" Wang Yuzhe explained that the traditional "rigid" automated assembly line can only mass-produce the same model of products, and the changeover needs to stop the line for adjustment. Through the collaboration between MES (Manufacturing Execution System) and intelligent logistics, the smart factory realizes the mixed production of various models and different horsepower. "The assembly line realizes flexible production, and the overall efficiency is increased by more than 15%." On the screen of the general control room, a dynamically updated data shows that 0 tractors are planned to be produced that day, involving 0 horsepower and 0 configurations.

Behind the flexible intelligent factory is the increasing abundance of tractor products in China.

"These models were developed for hilly and mountainous areas, and 800 units were delivered to Gansu last year to help the planting of local potatoes and other crops, and realized the mass application of tractors in hilly and mountainous areas." Xue Zhifei said that the company has seven series and more than 0 models, and continues to develop and produce new smart agricultural machinery to adapt to different scenarios.

"Be careful, reverse." On the factory road outside the factory, a Dongfanghong tractor returned from commissioning. The reporter approached and found that this tractor, which can avoid obstacles, turn and turn around on the road, does not have a cab.

"With just a finger touch, you can direct it to do the farming." On the side, staff member Chen Peng controlled the intelligent terminal in his hand, "In the future, farmers will preset routes here, even if they are thousands of kilometers away, they can also work on Dongfanghong's unmanned tractor." ”

Touching the bright red "mecha" of the tractor, Yang Tao sighed infinitely: "In the past, it was based on strength to build the 'Iron Bull', but now the 'Iron Bull' is built by data." ”

People's Daily (02/0/0 0 Edition)