In the domestic welding robot equipment career development speed is fast, from the past single enterprise use, to the current most of the professional production welding is inseparable from welding robot equipment, the use of more and more extensive fields.
The most important thing in the welding operation is to ensure the welding quality, which directly affects the operability and safety of the welding structure. There are many factors that affect the quality of welding, among which the greater influence is the welding shortcomings and the selection of welding parameters.
Workers who are engaged in short welding 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 attention to the lack of appearance quality of the weld, resulting in unqualified weld appearance 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 constant, and the quality of the weld is less affected by human factors, which reduces the requirements for workers' operation technology. However, in order to make the welding robot more sensitive and intelligent, it is also necessary to provide the robot with a welding seam tracking system.
Its function is to actively detect and actively adjust the welding orientation during the welding process, so as to always follow the welding orientation for welding, and the interval between the welding and the workpiece is always kept constant, and then ensure the welding quality, improve the welding power and reduce the labor intensity. This can deal with 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 avoid the welder's physical injury.
At present, the Beijing Chuangxiang laser visual welding seam 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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