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Automatic welder
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Automatic welder
Addtime:2015/4/3 13:35:06

Automatic welding Special (automatic welding machine) equipment is designed for specific workpieces and welded joints of a certain shape and specially designed welding automation equipment. Through the electrical control, pneumatic control and hydraulic control technology,

 the electric motor, pneumatic actuator, hydraulic actuator to rotate or move, realize the relative movement of the workpiece and the welding torch, thereby automatically welding welding joint.

Classification of automatic welding machines:
1 、 automatic welding machine with open-loop control

The control system of this kind of welding special plane usually adopts open-loop control, that is, the control system is set up in advance, and the executing elements are executed in sequence according to the control program. This kind of equipment has many advantages, 

such as simple structure, relatively low technical requirement and low cost. Because in the welding process, the welding parameters fluctuation feedback closed-loop control, welding head or welding workpiece movement only path according to predefined rules or track, can 

not change with the change of weld workpiece therefore, during use, should be with the precision and consistency of the weld to ensure the workpiece. In order to improve the reliability of welding quality and welding efficiency of products. Right is the motor seat for large

 motor frame welding design of automatic welding machine, welding length can be set in advance, the motor seat a total of four, in two straight seam welding welding side after the automatic rotation of 90 degrees, and then welding the second straight face, and so on, 

the rest of the line according to the welding procedure. Similar to this type of equipment, it is necessary to preset the length of the linear movement of the welding torch and the speed of welding. After welding, the angle and speed of each rotation are also set. Because 

of the open-loop control, the angle of each side of the workpiece is required to be very accurate, otherwise, all the welding work can not be finished automatically.

2 、 adaptive control automatic welding machine

This kind of special plane is a kind of welding equipment with higher degree of automation. It is equipped with sensors and electronic circuit, automatic orientation and trajectory of seam tracking, some equipment can also of welding parameters such as welding current, 

welding speed closed-loop control of welding voltage and the welding process according to the procedures and process parameters preset automatically finish. For example, a larger cylinder or tube part, as shown on the right, is very difficult to ensure the consistency of the 

workpiece and achieve very high matching accuracy, and it will cost more. The welding machine adopts arc length tracker and welding torch wiggler. Because of the uneven surface of the workpiece, the welding torch needs to be moved up and down as the surface of the 

workpiece is uneven, so as to keep the distance between the welding torch and the workpiece surface, so as to ensure the stability of the arc. At the same time, multi-layer welding can be realized automatically. If two layers are welded, the welding torch can be automatically

 increased when the height of the surface detected by the tracker increases after a week of welding.

3 、 intelligent automatic welding equipment

It uses all kinds of advanced sensors, such as vision sensor, angle sensor, light sensor, and the use of computer software system, database, expert system and recognition, judgment, real-time detection, automatic operation, programming, welding parameter calls, operators 

only need to input the material type, thickness, groove type and brand and the diameter, flux or protective gas type on man-machine interface, welding parameters automatically or call the corresponding parameters. Automatic welding can be completed. Because of this 

kind of equipment cost is very high, the actual number of factors affecting the welding quality, such as the purity of the gas flow, welding current, voltage, power input fluctuations, width of moisture or corrosion, weld workpiece, weld height and so on, so it is difficult to 

accomplish intelligent welding, rarely used in actual production.



 
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