06

2021-09

Plane Layout of Body Welding Production Line

As one of the four major processes, the plane layout of the production line is of great significance to the safety and quality of the future production. Composition of body welding production line Body welding production line is the general term of all forming stations of BIW. It is composed of body assembly line and many sub-assembly lines. Each assembly line or sub-assembly line is composed of many welding stations. Each station is composed of many positioning and clamping fixtures and automatic welding devices. The transfer of loading and unloading and parts is realized through electric hoist, robot and other conveying equipment between lines and stations, so as to ensure the continuity of work in each station in the production line. The body welding production line includes: adjustment and grinding line, main welding line, lower line, floor assembly line, side wall assembly line, door cover line and cabin line. Plane layout of welding production line 1. Feasibility analysis of the layout of the welding production line (including the factory building) According to the new model capacity planning and new model product data, determine the process route and production site, through the status of tooling equipment for short-term and long-term production feasibility analysis. 2. Plane layout of welding production line-steel structure According to the product data and the process division of the body planning technology department, the process diagram list is worked out. (1) Confirm the corresponding fixture list and size through the process diagram; (2) Confirm the corresponding equipment list and size through the operation diagram and fixture list; (3) Through the equipment list and fixture list to arrange, confirm the location and quantity requirements of relevant power, water, steam and compressed air and other energy facilities; (4) Confirm the shape (length, height and width) of the on-site steel structure through the equipment list, fixture list, power, water, steam, compressed air and other energy facilities and safety passages, and complete the overall on-site layout. 3. Plane layout of welding production line-inter-process layout According to the operation drawing, fixture and equipment list, make the arrangement between the processes. The formulation principles are as follows: (1) Through the relationship between the upper and lower processes, the mainstream adopts the principle of proximity, according to local conditions. (2) Through the measurement of working hours, the stations in the area with less working hours, no influence on the overall operation, no influence on the beat and less route transfer shall be concentrated as much as possible, and the relevant personnel shall operate under reasonable beat. (3) Confirm the special station equipment of the fixture and the integrated station equipment through the process diagram, and confirm the position of the station equipment through the size of the parts and the way the employees take the parts. (4) Through the measurement of working hours in working stations, the principle of proximity is adopted, and "0" inventory is implemented for working stations with little difference between upper and lower order. (5) Between station processes, when the transfer route has to be relatively long due to pros and cons analysis, the online inventory mode is adopted to make up for it according to the working hours. (6) If there is congestion between processes, it is recommended to disassemble the process steps or disassemble the process to make up for it, reduce the small parts that do not affect the accuracy of the station, move to the next process for welding, and reduce the corresponding station equipment; The sliding mechanism is used to pre-assemble and then slide to the welding station for welding, thus eliminating the interference between the welding tongs and other facilities. 4. Plane layout of welding production line-logistics transfer layout (1) through the actual field measurement and the weight of parts, size, determine the logistics transfer mode between processes. (2) through the actual field practice, the importance of surface quality and the quality of parts, size to determine the logistics transfer between processes. (3) Logistics channel planning, welding logistics channel requirements for 3m. The arrangement of welding logistics is an important link in the arrangement of welding production line. Whether a vehicle type runs smoothly in the later production is very critical to the planning and arrangement of welding logistics. It is necessary to calculate the logistics volume of each channel and see the size of the logistics volume when running at full load. The layout of the logistics of the welding workshop also reflects the level of the welding production line from the side. The success of automobile welding plane layout has laid a good foundation for automobile manufacturing in the future. With the rapid development of the automobile industry, various automobile manufacturers have higher and higher requirements for the plane layout of welding assembly, and they are becoming more and more demanding. In addition to designing the layout in accordance with the principles, specific problems need to be treated concretely.

2021-09-06

Plane Layout of Body Welding Production Line

28

2021-08

Pakistan Project 10 Tons Crane Beam Shipment

On August 18, 2021, the 10-ton crane beam of the Pakistan project was shipped. Due to the long crane beam, it is shipped on deck. At present, the shipment has been completed and will arrive at the customer's port of destination in one month. This project includes bus welding line, bus assembly line and bus inspection line. When the whole line is completed, it will be the second bus super factory in Pakistan.

2021-08-28

Pakistan Project 10 Tons Crane Beam Shipment

17

2021-08

China's electric buses lead the world trend

The "Electric Bus Operation and Maintenance Series Online Course" organized by the International Federation of Public Transport (UITP) opened. Wang Jian, chief scientific communication expert of China's public transport discipline, gave the first lecture on "Electric Solution for Urban Bus System" (Electric Solution For Urban Bus Networks) to more than 40 students from more than 10 countries, introducing the experience of China's electric buses. Wang Jian's wonderful lecture was highly praised by the students: professional and profound! Under the background that most cities and regions around the world begin to take zero emission environment as their development goal, and more and more city authorities and public transport companies are considering providing comprehensive electric solutions for their urban public bus networks, the International Federation of Public Transport (UITP) College and Shenzhen Bus Group jointly launched the "Electric Bus Operation and Maintenance Series Online Course", which was delivered by Wang Jian, chief scientific communication expert of China's public transport discipline, on the afternoon of March 30, 2021, there were 9 online interactive classes in this online course. More than 40 students from more than 10 countries signed up to participate. Zeng Shuyi, Asia Pacific Executive Director of the International Public Transport Federation, and Ma Zhengyuan, Deputy General Manager of Shenzhen Bus Group, gave welcome speeches before the class. More than 40 participants from more than 10 countries The course title of Mr. Wang Jian is "Electric Solution of Urban Bus System". He summarizes the application status and mainstream models of global electric buses from the background of automobile fuel efficiency standard, greenhouse gas emission source and bus emission standard, Paris climate agreement and policies and regulations, etc, then, the deployment phase of bus electrification solution, the overall design method of electric bus technology and the technology selection based on total cost of ownership are discussed. Mr. Wang Jian's wonderful lecture was highly praised by the students: professional and profound! Wang Jian, Chief Science Communication Expert in Public Transport Mr. Wang Jian first introduced the policy background and urban strategy of introducing electric buses. From the Energy Policy and Conservation Act (EPCA), the Clean Air Act, Greenhouse Gas Regulations and Fuel Economy Standards for Heavy-Duty Engines and Vehicles in the United States to the Emission Certification Directive for Non-Road Mobile Machinery in Europe, and China's "Gasoline Vehicle Idle Speed Pollution Emission Standard", "Diesel Vehicle Free Acceleration Smoke Emission Standard", "Comprehensive Air Pollutant Emission Standard" and other related regulations, and then from the perspective of the "Paris Climate Agreement" countries' self-determined expected contribution, It is pointed out that it is an irreversible trend to transform the current transportation system into sustainable energy and sustainable electric travel. The process of electrification of public transport is irreversible Teacher Wang Jian specially introduced the electrification case of Shenzhen Bus Group. It is the world's largest electric bus operator. After 8 years of accumulation, it took the lead in fully realizing bus electrification in 2018. Its electric bus fleet reached 6053 vehicles. Won the "Outstanding Achievement Award" at the 63rd World Public Transport Conference; shenzhen Bus Group's experience in the fields of bus electrification, intelligent dispatching, bus sharing and driverless driving has established an advanced professional image not only for China, but also for the international public transport industry. Mr. Wang Jian also introduced the products on sale of electric buses in the world. BYD and Yutong buses are undoubtedly the most important manufacturers. China's battery electric buses are far ahead in terms of the number of battery electric buses. China's electric buses adopt wheel-side drive technology in large quantities. European manufacturers have also launched electric buses and started demonstration operation. Mr. Wang Jian compared the bus prices in North America, China, Europe, Latin America and other regions, and analyzed the advantages of bus products in each region, all kinds of electric buses made in China are highly competitive in the world, but it remains to be seen who will take the lead in the development of hydrogen fuel electric buses in the future. Finally, Mr. Wang Jian summed up three basic points: first, the introduction of electric buses is the trend of global public transport development; second, the challenges of deploying electric buses are prepaid costs, operational requirements, procurement, cooperation with the energy industry; third, global electric bus products have adapted to the fleet management needs of public transport.

2021-08-17

China's electric buses lead the world trend

14

2021-08

How many kilometers can a hydrogen fuel cell bus last per 70 MPa of hydrogen energy?

In 2021, with the introduction of plans for the construction of hydrogen energy industrial parks and hydrogenation stations in Zhejiang, Shandong and other provinces, China's hydrogen energy will usher in a new round of development boom. According to the bus network, recently, the State Power Investment Zhongguancun Yanqingyuan Hydrogenation (70 MPa) Station in Yanqing District was completed and put into use. The station is the first hydrogenation station in Beijing with both 35 MPa and 70 MPa hydrogen filling capacity. The technical level and service level of the project not only improve the hydrogen guarantee capacity for Winter Olympics hydrogen fuel vehicles, it also provides more application scenarios for hydrogen energy in the domestic transportation field with demonstration significance. The project started on April 10, 2021, and all the builders of CLP Wisdom (Green Hydrogen Technology) were successfully completed and put into production in just over two months. "In the next step, we will actively cooperate with the demonstration operation of various hydrogen fuel vehicles in the Winter Olympics, explore the application of green hydrogen energy technology, fully participate in the construction of the integrated platform of hydrogen production, storage, transportation and hydrogenation in the Olympic competition area, realize centralized control of green hydrogen energy through intelligent scheduling, and serve Beijing's scientific and technological innovation, show the world the charm of 'zero carbon energy." State Power Investment Beijing Green Hydrogen Technology Development Co., Ltd. Winter Olympics supporting hydrogen production project manager Xing Wei said. From 35 MPa to 70 MPa, Zhongguancun Yanqingyuan Hydrogenation Station has achieved the "four major leaps" of cruising mileage, hydrogen supply capacity of the whole station, hydrogenation safety and intelligence ": Yanqingyuan Hydrogenation Station Realized "Four Leaps" 1. cruising range (hydrogen bus): about 300km(35Mpa) → about 500km(70Mpa) 2. Hydrogen supply capacity of the whole station: 30 buses per day → 60~100 buses (or 200 small and medium buses) per day 3. Hydrogenation safety: manual detection → automatic detection and automatic control 4. Intelligent degree: manual operation → automatic billing, code scanning payment, intelligent scheduling Each filling of 70 MPa of hydrogen energy can support hydrogen energy vehicles to travel about 500 kilometers, and the 70 MPa hydrogenation station can supplement hydrogen energy for 60 to 100 buses or 200 small and medium-sized buses every day. At the same time, the international infrared communication protocol adopted by the 70 MPa hydrogenation station can realize the functions of automatic detection, automatic control, automatic billing, code scanning payment, intelligent scheduling and the like of the hydrogenation process. By the 2022 Beijing Winter Olympic Games, there will be more than 1000 hydrogen energy vehicles in Beijing Yanqing competition area as a means of transportation to provide services for Olympic Organizing Committee officials, athletes and spectators from all over the world, and show the charm of "zero carbon energy" to the world. This will also be the largest hydrogen energy transportation demonstration in the history of the world. Let's wait and see.

2021-08-14

How many kilometers can a hydrogen fuel cell bus last per 70 MPa of hydrogen energy?

27

2021-05

New Flyer and Robotic Research Collaborate on Self-Driving Bus Technology

New Flyer of America and Robotic Research companies develop advanced driver assistance technology (ADAS) and deploy it in heavy-duty bus applications to promote the development of self-driving bus technology.

2021-05-27

New Flyer and Robotic Research Collaborate on Self-Driving Bus Technology

12

2021-05

Body-in-white frame assembly process

As a common means of transportation, automobile is an important product to expand domestic demand. As one of the four assemblies of the vehicle, the body has an important impact on the assembly, safety, ergonomics, economy and perception of the vehicle products.

2021-05-12

Body-in-white frame assembly process
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