Among various industries, the booming development of the automobile industry has brought new development opportunities to the crane industry. In the process of supplying various types of cranes to the world, Dongqi Crane continues to contact customers in the automotive industry and achieve win-win cooperation. We are deeply aware that if we do not develop, we will fall behind. In order to train ourselves and for our customers to better understand the crane industry, we need to conduct a comprehensive understanding and analysis of the role of cranes in the automotive industry. In the automotive industry, cranes of all types are currently used mainly for material handling, intralogistics and specific assembly tasks. The following are some specific application scenarios: Stamping workshop: The crane is mainly used for lifting steel coils and lifting and turning stamping dies. These cranes usually have the characteristics of high working level, fast running speed, smooth lifting, precise positioning, safety and reliability.
In the automotive industry, the types of cranes required will vary according to different work requirements. However, when we analyzed the overall needs of our customers, we noticed that no matter what type of crane, in order to ensure the performance required by the automotive industry Work efficiency needs to meet some specific requirements. Here is a detailed summary of our requirements:
In order to ensure the efficiency of each work link, we need to determine which type of crane to use based on the working conditions. Based on our many years of experience working with customers, we can roughly summarize the following points:
Although the automotive industry has long been considered a major user of lifting equipment, there are almost no professional, customized lifting solutions in the automotive and truck manufacturing fields. Ready made designs may seem sufficient - but they must be the highest among high-end ready-made products.
For Dongqi Crane, given the modular design principle of our lifting equipment, we can use chain electric hoists or wire rope hoists to meet the application needs of most automotive customers. In the field of small components in the automotive industry, cranes themselves are quite standard for manipulating engine blocks, cylinder heads, etc.
"People's interest lies more in what is underneath the hook. This is where specialization occurs. The intelligent technology of large stamping workshop cranes lies in anti roll control and other technologies, which is far from unique to the automotive industry."
Nevertheless, the industry does have its unique needs. They are imposed due to the absolute need to deliver and deliver on time. Delay is unacceptable, and every second saved in production is crucial. The most important thing in the automotive industry is responsibility, which is the frequency of use. We have recently installed a hoist for a factory that produces car seats, which operates at a speed of 15 cycles per hour, in large quantities.
The second factor is speed, and the third factor is improving the controllability of the device. The two are interrelated: most hoists have two speeds, namely fast and slow. Fast refers to completing the hook and loading from the pickup point to the destination in the shortest possible time. When it reaches there, it needs to be slow for precise positioning.
About 30,000 separate parts come together to make a single car. A single delay on the assembly line can be disastrous.
We once installed two 35 ton double girder cranes for the press shop of a المملكة المتحدة car factory. The installation was part of a project to upgrade the factory's old lifting system.
The crane has a span of 21.8m and provides 9.8m of lift. They run on different gantry guides at different locations in the press shop, and the end carriages are equipped with anti-collision/reduction devices to prevent either system from coming into contact with adjacent cranes, shutting down the power once a predetermined approach is reached.
As well as installing both cranes, we will provide a series of follow-up service visits for a period of 48 months after installation. To assist with maintenance, both sides of the crane are equipped with walkways throughout the span, as well as a self-closing mechanism on the access gate of the safety rail.
Other features include emergency stop buttons on the pavement and five LED floodlights.
Vehicle bodies are transported by a conveyor system at continuous speeds through production. At one station, the cab and sliding doors are removed for pre-assembly on the door pre-assembly line. The 30kg batteries are also installed here. To do this, the worker uses a single-sided manipulator that has an operating range from 0 to 4,500 mm.
Manipulators that are each suspended from two rails are also used to remove the large doors, which weigh up to 85kg. Rails measuring a total length of 238 metres were installed at this station.
In the drive pre-assembly line, the rails are mainly used to provide workers with the necessary tools, such as pneumatic power screwdrivers. Heavy or large components need to be handled on the bench seat and load compartment base panel assembly line, while often heavy, but compact parts such as leaf springs and shock absorbers have to be precisely positioned on the vehicle assembly line.
Every step of the process has different handling requirements. The same applies for different height levels and the type of suspension: if they are needed for the horizontal mobility of conventional crane installations that are equipped with chain hoists, suspensions that have articulated joints are used. Rugged ergo suspensions that can accommodate torque and kick-up forces are used for applications with handling equipment and telescoping power screwdrivers.
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