Automatic welding includes the automation of welding process and welding production

Welding production automation is right in front of you

China is a welding power in the world, but it is by no means a welding power. China's welding automation rate is still less than 30%, far lower than the level of more than 60% in developed countries. There is a relative lack of design and management talents to meet the on-site automatic welding. With the large-scale application of low-cost and high-performance digital and networked products and the gradual decline of China's demographic dividend, welding mechanization, welding automation and welding intelligence have become the strategic means and objectives of welding enterprises.

1、 What is automatic welding?

Automatic welding refers to the construction of an advanced welding processing method and process scheme with no or fewer people directly participating in the welding process on the basis of adopting advanced welding methods, inspection means and assembly technology, and the integration of the configuration of welding machinery and equipment and control system, so as to use welding machinery to replace people for welding, so as to improve production efficiency and reduce labor intensity The purpose of improving the working environment and product quality.

Automatic welding includes the automation of welding process and welding production. The latter includes the automation of the whole welding production process composed of material preparation, cutting and blanking, groove preparation, workpiece assembly and assembly, welding, heat treatment, welding inspection and other processes.

Automatic welding equipment mainly includes traditional welding auxiliary machine, welding sensor, central controller, welding machine, welding fixture, automatic welding head, special welding gun, etc.

2、 What are the technical characteristics of welding production automation?

1. Standardization, generalization and serialization

For the typical joint forms commonly used in mass production, such as plate joint, cylinder circumferential joint, cylinder longitudinal joint, pipe butt joint and pipe tubesheet joint, the corresponding standard automatic welding equipment has been developed. This welding machine has the advantages of high welding efficiency and stable quality.

After years of product R & D accumulation, Beijing Times has successively developed general-purpose automatic welding equipment such as longitudinal seam welding machine, roller multi gun submerged arc surfacing, horizontal multi gun ring seam welding and vertical welding gun rotary ring welding machine.

2. High precision, high speed and high quality

Due to the increasing trend of welding processing towards & ldquo; Refinement & rdquo; Therefore, the welding automation system is also developing towards high precision, high speed and high quality. This requires that the controller and software system of the system have high information processing speed and good control accuracy of electrical and mechanical devices. For example, the positioning accuracy of walking mechanisms such as robots and precision welding operators can reach 0.1mm, and the control accuracy of displacement speed can reach 0.1%.

3. Highly integrated

The integration technology of welding automation system includes the structure integration, function integration and control technology integration of hardware system. The structure of modern welding automation system adopts modular design, and the modules are combined according to the requirements of different users for system functions. At the same time, its control function also adopts modular design. According to the needs of users, different control software modules and different control functions can be provided.

For example, the central controller of the times belt electrode surfacing can control all the actions of the operator, the actions of the roller carrier or positioner, the welding sequence, the flux conveying and recycling machine, the water tank, the magnetic control device, the head sliding plate, etc., and has the functions of automatic lane change, automatic speed regulation, self diagnosis and so on.

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4. Intellectualization

The current sensing technology, computer technology and intelligent control technology are applied to the welding automation system, so that it can realize high-quality and high-efficiency automatic welding under various complex environments and changing welding conditions.

For example, a welding automation system based on line laser sensing can not only automatically complete the welding process according to external instructions, but also determine the number of weld beads, relevant welding parameters and covering layer position of each layer of weld according to the continuously measured groove width of the welding workpiece, and all weld beads from the groove bottom to the covering layer are automatically lifted, changed Complete welding.

5. Flexibility

The one-time investment of large-scale automatic welding equipment or production line is relatively high. When designing this kind of welding equipment, flexibility must be considered to form a flexible manufacturing system, so as to give full play to the efficiency of the equipment and meet the production needs of workpieces of different specifications in similar products.

6. Networking

The development of modern network technology promotes the development of integrated management and control technology of welding automation system. Through the network, computer technology and remote communication technology are used to integrate production management and automatic control of welding process, so as to realize off-line programming, remote monitoring, diagnosis and maintenance.