Legal Counsel: Mr. Zhao Jianying
Xiaomi has made new progress in making cars! Recently, the bidding agency company was entrusted to release the supplier recruitment announcement of the vehicle welding wire body project of Xiaomi Automobile Technology Co., Ltd. on April 29, inviting suppliers from all over the country to participate in the bidding.
From the perspective of bidding conditions, Xiaomi Automobile project location is located in Shanghai, the relevant project has been approved by the project approval / approval / filing authorities, the source of project funds for other funds, the bidder is Xiaomi Automobile Technology Co., Ltd., the project has met the bidding conditions, the current bidding method is public bidding.
According to the announcement, the scale of the project is: the whole vehicle welding line body; the scope of bidding is: the bidding project is divided into 1 bidding section, and the bidding is the (001) Xiaomi Automobile Technology Co., Ltd. vehicle welding wire body project. In addition, specific eligibility requirements for bidders are not shown.
The target section of this item is divided into seven sections: floor package, side wall package, door cover package, general package, welding package, loading package, and machine transport package.
According to public reports, Xiaomi Automobile will build a vehicle factory with a cumulative annual output of 300,000 vehicles in two phases in the Beijing Economic Development Zone, of which the production capacity of the first and second phases is 150,000 units, which shows that from the output calculation, the welding production line put into production by Xiaomi should be a high-speed flexible welding line. For example, the CS75 welding line of Changan Automobile's Beijing plant, the Ruijie welding line of Changan Ford's Hangzhou plant, and the Land Rover Aurora welding line of Chery Jaguar Land Rover Changshu factory are all high-speed flexible welding lines.
High-speed flexible welding line, different from the ordinary welding line, it must have two major characteristics: one is high-speed, can be rapid production, the annual production capacity is at least more than 200,000 vehicles, to jianghuai Ruifeng S3 welding production line as an example, the annual production capacity of 240,000 vehicles, production beat can be as high as 60UPH, in the case of considering the equipment opening rate, the beat of a single car is as high as 51s; the second is high flexibility, welding is the strongest rigidity in the total four major processes of welding and coating, and the general welding production line carries up to two platforms and three models. The high-speed flexible welding line can reach more than three platforms and four models, and the same JIANGHUAI Ruifeng S3 welding line can be used as an example to meet the common line production of four platforms and six models.
Based on the requirements of high-tempo production, high-speed flexible welding lines require the use of more robots, which is based on the requirements of its automated production. In the composition of some new flexible welding lines of domestic automobile enterprises, the automation rate can reach more than 80%.
In the high-speed flexible welding production line, the application of the robot is reflected in all aspects, not only in spot welding, but also in other tasks such as interstitial conveying, gluing, arc welding, grasping, release and other work are also completed by robots. At the same time, in the high-speed flexible welding line, the use of robot with fine positioning gripper to achieve the positioning of parts, is a very important application.
The role of the positioning system is to ensure dimensional accuracy in the welding process and control the dimensional stability in mass production, which is a very important component of the welding line. In order to meet the requirements of high-speed flexible welding line for automation, high beat, and high flexibility, in addition to the robot gripping positioning system for some attachment positioning mentioned earlier, there are three types of fixture positioning systems that are the key to the realization of flexible welding lines: first, the centralized upper-boarding stations of the side fence and the hair cabin line need to use complex fixtures of the positioning system; the second is the general fixture with high precision and high positioning consistency requirements; the third is the main positioning fixture of the body on each station on the main line.
In addition, high-speed flexible welding lines and conveyor systems are indispensable.
At present, the powerful Chinese automotive welding integrators include Demeco, a subsidiary of Huachangda, Xiaoao Xiangrong, a subsidiary of HKUST, Shanghai Guanzhi, a subsidiary of HKUST Intelligence, Tianjin Fuzhen, a subsidiary of Hagong Intelligent, Shanghai Xinyanlong, a subsidiary of Sanfeng Intelligence, W.F. .C of Italy, as well as Tianyong Intelligence, Jiangsu Beiren, Ruisong Technology, Juyi Intelligent, Cheng welding Baoma, Guangzhou Mingluo, Guangzhou Zhongshi Intelligence, etc., of which Tianyong Intelligent, Jiangsu Beiren, Ruisong Technology, and Juyi Intelligence have been successfully listed.
If you look at the progress of the "tender welding line" now, if it can be rolled off the production line in 2025, Xiaomi will be a miracle, but Xiaomi claims to be the first car to roll off the production line in 2024 and achieve mass production. It can be seen that next, other processes of Xiaomi car manufacturing will also or have begun to prepare.
After all, the start-up stage takes about half a year, during which it is necessary to repeatedly improve the stamping, welding, painting and assembly production lines, under the condition of ensuring the performance of the production process and the performance of the prototype, start small batch production, further verify the reliability of the product, and ensure that the small batch production of 3 months of products without major problems, officially start mass production.
Therefore, in addition to welding, the four major processes of Xiaomi car manufacturing will be completed one after another, and new energy vehicles may add a battery pack Pack workshop.
Based on Xiaomi's understanding of future factories, we speculate that Xiaomi's car factories may cite more industrial robots to ensure the stability of the process. From the following Xiaomi's promotional video for future factories, we can get a glimpse of Xiaomi's understanding of smart factories:
I have to say that Xiaomi's car is indeed serious. Entering 2022, Xiaomi also actively invested in battery new energy industry chain enterprises. On January 12, Fute Technology announced the completion of a new round of strategic financing of 100 million yuan, which was invested by Hubei Xiaomi Yangtze River Industry Fund Partnership (Limited Partnership), an industrial investment institution under Xiaomi Group.
Fute Technology is the main supplier of domestic new energy vehicle on-board chargers and on-board DC/DC converters, the main customers include Renault-Nissan Alliance (domestic designated suppliers), LG (general purpose), ICS (Volkswagen), Great Wall, GAC, Weilai, Xiaopeng and other well-known OEMs at home and abroad.
According to incomplete statistics, since last year, Xiaomi capital has invested in about 40 in the automotive industry chain. According to industry insiders, "Xiaomi's investment in autonomous driving, in-vehicle chips and power batteries can be called 'the most in the circle'".
Such a layout is undoubtedly in line with Lei Jun's judgment of the future automobile industry. "The hardest parts are the battery and autonomous driving. After four years, the advantages of electric vehicles for traditional cars will gradually be reflected, and the transition of fuel vehicles to electrification is just right. "Xiaomi's public statements have now landed one after another; and the seeds that carry Lei Jun's dream of building cars have also broken ground this spring."
bibliography
[1] Automotive technologist: Learning to build a high-speed flexible welding line is not a problem!
[2] Gaogong Robot: Xiaomi Automobile publicly bid for suppliers of welded wires for the whole vehicle
[3] Financial Associated Press: Xiaomi automobile manufacturing base exposed
[4] Battery 100 People Will: The latest progress of Xiaomi car manufacturing! Public bidding for suppliers of complete vehicle welded wire bodies
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