In China, the career development of welding robot equipment is relatively fast, from the use of a single enterprise in the past, to the current majority of professional production welding is inseparable from KUKA robot equipment, and the field of use is becoming more and more extensive.
The most important thing in the welding operation is to ensure the welding quality, which directly affects the usability and safety of the welded structure. There are many factors that affect the quality of welding, among which the most influential ones are the welding shortcomings and the selection of welding parameters.
Workers who are engaged in welding for a short time can not deal with welding problems well, resulting in welding shortcomings such as internal slag inclusion, porosity, undercut, and welding nodules. In the selection of welding process parameters, each welding worker will adjust the welding current, welding voltage, welding power supply variety and polarity, welding speed and diameter and extension length of the welding wire according to their own practical experience.
There are also many welding workers who pay more attention to the flaw detection results of non-hazard detection when carrying out welding operations, and pay insufficient attention to the appearance quality of the weld, resulting in the unqualified appearance of the weld and rework, reducing labor productivity.
The welding robot has good running stability and can ensure the uniformity of welding quality. The welding process parameters of the welding robot are simple and can be directly set to the process parameters, and there is a calculation formula inside the robot to actively adjust the current and voltage. When the robot welds, the welding parameters of each weld are stable, and the quality of the weld is less affected by human factors, which reduces the requirements for the operation skills of workers. However, in order to make the KUKA robot more sensitive and intelligent in its operations, it is also necessary to provide the robot with a weld tracking system. Its function is to actively detect and actively adjust the welding position during the welding process, so as to always follow the welding position for welding, and the distance between the welding and the workpiece is always stable, and then ensure the welding quality, improve the welding efficiency and reduce the labor intensity. This can solve the welding quality problems caused by the thermal deformation of the workpiece welding, the inconsistency of the workpiece, and can also liberate the welder from the harsh environment and prevent the welder's physical injury.
At present, the Beijing Chuangxiang laser visual weld tracking system, which has a good prospect of right and wrong touch, has the advantages of large amount of information, high sensitivity and precision, strong anti-electromagnetic interference ability, and no touch with the workpiece.
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Instructions and grammar
· Program structure
o Modules
§ Global
§ Local
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§ Global
§ Local
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One. Outline:
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Robot welding speed and its parameters – KUKA robots
First, the robot welding speed
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