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Robot friction stir welding technology revolutionizes automo

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The global ban on fuel vehicles has been put on the agenda, and major automakers have successively launched new energy electric vehicles, and lightweighting has become an important goal pursued by new energy vehicle manufacturers. At present, most manufacturers use aluminum alloy as a lightweight body material, so the welding quality, light weight level and air tightness requirements of the vehicle are increased. At this time, an emerging welding technology, friction stir welding, has been widely used in the automotive industry for its advanced, green, safe and reliable process characteristics, and represents the future of new energy vehicle welding manufacturing. Important direction.
 
Friction stir welding is to use the mixing head to rub the heat with the end face of the workpiece to make the end face of the workpiece reach the thermoplastic state and then quickly forge, thereby realizing the solid connection of the welding. This kind of welding method is of good quality, high efficiency and can be welded at one time. Based on these advantages and in response to the national intelligent manufacturing and green development strategy, the friction stir welding technology quickly turns from the laboratory to large-scale engineering for automobile manufacturing, aerospace, Used in many industrial fields such as shipbuilding and rail vehicle manufacturing.
 
Early friction stir welding is mainly realized by CNC machine tools. With the increase of user flexibility requirements for equipment, these CNC machines with large size, inflexible operation and difficult operation are unable to meet the production requirements, so the company began to use heavy-duty robots. Instead, the industrial robot system is integrated with advanced friction stir welding equipment.
 
In order to further popularize the application of friction stir welding technology in the field of new energy vehicle manufacturing, Harbin Engineering's 51ROBOT industrial robot one-stop service platform has introduced a friction stir welding (FSW) robot system, and provides design and manufacture including welding production lines. A complete set of services such as installation and commissioning of supporting robots helps enterprises to obtain more production benefits through efficient and stable robot friction stir welding system.
 
Robot friction stir welding technology
 
The combination of robot and friction stir welding technology is an important development direction of friction stir welding equipment in recent years. Automobile manufacturers need to consider many problems when equipped with robot friction stir welding production line, including designing heavy-duty industrial robot body and friction stir welding machine. The new process also needs to consider the integration of various sensing control systems, process path planning and collaborative control technology. The whole process needs the support of high-end technology or knowledge-based talents.
 
Robot friction stir welding technology revolutionizes automobile manufacturing
 
For the selection and installation and commissioning of industrial robots in robot friction stir welding, 51ROBOT platform cooperates with well-known robot companies at home and abroad to ensure first-class product quality, enabling users to easily select according to application and individual needs. .
 
In the production process, robot friction stir welding needs to consider the cooperation with the positioner or multiple robot systems, and re-plan the process flow to achieve flexible manufacturing of “small batches and multiple varieties”. To this end, 51ROBOT platform Harbin Wanzhou subsidiary, focusing on intelligent heavy-duty robot friction stir welding, intelligent multi-degree-of-freedom friction stir welding and other technical research and development and equipment production, to provide more in-depth technical support for the intelligent upgrade of the production line, Meet the diverse needs of users.
 
New ideas for industrialization
 
Industrial robots make the friction stir welding system more flexible, which expands the application market for welding operations. The new system can be used for batch welding of complex structural products, and can further improve welding automation and production efficiency. This is reflected in the 51 ROBOT domestic first new energy vehicle PACK fully automated friction stir welding box welding production line, the biggest highlight is through the "high flexibility", "high automation" and "high production efficiency" design Resolved compatibility, full-line beats, and efficiency issues. The PACK box welding production line is fully modular. The independent friction stir welding system can not only be combined with the automated production line to form a full production line, but also can be used alone to meet customers' needs in “small batch, customized” and “high volume”. Production" demand for two different production models.
 
In the robot friction stir welding, because the degree of flexibility of the robot is high, the welding process is stable and no human intervention is required, so that the welding quality is significantly improved, and the welding production cost is reduced. According to industry statistics, the cost of robotic friction stir welding single piece welding is 20% lower than robot argon arc welding, and only half of the welding cost of multi-axis friction stir welding equipment. It can be seen that the use of robots for friction stir welding has significant cost advantages in large-scale industrial production.
 
In addition, the robot friction stir welding has the characteristics of green, energy saving and high efficiency, and is suitable for complex structure welding, such as plane two-dimensional, space three-dimensional, etc., and can freely expand the robot working space through an external shaft. At present, 51ROBOT provides intelligent multi-degree-of-freedom friction stir welding robot, three-dimensional friction stir welding and other technologies, and has an industrial-grade constant pressure control system, multi-degree of freedom to achieve 3D surface welding, with a high degree of automation integration and expandability. This flexible production mode of friction stir welding combined with robots has become a new idea of ​​industrialization.
 
Technological disputes between new energy auto companies
 
In recent years, China's new energy vehicles have also achieved leap-forward development in industrialization and scale. In 2017, the output of China's new energy vehicles was 794,000, and the sales volume was 777,000 units, up 53.8% and 53.3% year-on-year respectively. The production and sales volume ranked first in the world for three consecutive years. It is predicted that China's new energy vehicle market will reach 14 trillion yuan from 2018 to 2030.
 
The huge market indicates huge competitive pressure. In addition to the large domestic energy companies entering new energy vehicles, foreign companies are also gearing up for opportunities to turn over the “latecomers” with technological advantages, and technological competition has become the key.
 
It is understood that half of the global industrial robots are used for welding. Therefore, the robot friction stir welding technology has become the focus of the industry. New energy vehicle manufacturers have deployed fully automated friction stir welding, expecting higher efficiency and flexibility. For a lower-cost production process, companies need to optimize the robot body, welding head, control system, and process planning.
 
Robot friction stir welding technology revolutionizes automobile manufacturing
 
At present, 51ROBOT customizes the automatic welding production line for domestic large, medium and small industrial robot users with professional tools and talents. At the same time, it has assembled thousands of domestic and foreign well-known robot quality manufacturers on the platform, and realized the provision of industrial robot body and robot standard system. And the integration of system integration, remote health monitoring, maintenance, technical training, robot refurbished and remanufactured into a cycle of industrial robot life cycle ecological chain.
 
With the retreat and withdrawal of relevant domestic financial subsidies, and the substitution effect of new energy vehicles on traditional fuel vehicles, the Chinese and foreign new energy vehicle wars may break out within five years, when market competition will be extremely cruel. Domestic enterprises need to improve their R&D level as soon as possible, master core independent technologies, and launch competitive products to occupy the local market. The application of robot friction stir welding has become an important part of the company's tighter layout.
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