Welding robot welding defect analysis and processing method The robot welding uses argon-rich mixed gas protective welding. The welding defects that occur during the welding process generally include welding offset, undercut, and venting. The specific analysis is as follows: (1) A weld offset may occur if the position of the weld is incorrect or the weld gun is looking for problems. At this time, consider whether TCP (the position of the torch center point) is accurate and adjust it. If this happens frequently, check the zero position of each axis of the robot and recalibrate it to correct it. (2) The undercut may be improperly selected for welding parameters, the angle of the welding torch or the position of the welding torch is incorrect. The power can be appropriately adjusted to change the welding parameters, adjust the posture of the welding torch and the relative position of the welding torch and the workpiece. (3) The occurrence of pores may be poor gas protection, the primer of the workpiece is too thick or the shielding gas is not dry enough, and the corresponding adjustment can be processed. (4) Excessive splashing may result in improper selection of welding parameters, gas component reasons or excessive elongation of the welding wire. The power can be appropriately adjusted to change the welding parameters, adjust the gas proportioning instrument to adjust the proportion of the mixed gas, adjust the welding torch and The relative position of the workpiece. (5) An crater is formed after the end of the weld is cooled, and the buried crater function is added to the work step during programming to fill it. Common faults and solutions for welding robots (1) A rifle occurred. The assembly may be checked or the torch TCP may be corrected due to deviations in the assembly of the workpiece or inaccurate TCP of the torch. (2) An arc fault occurs and the arc cannot be induced. It may be because the welding wire is not in contact with the workpiece or the process parameters are too small, the wire can be manually fed, the distance between the welding torch and the weld be adjusted, or the process parameters can be adjusted appropriately. (3) Protective gas monitoring alarm. If there is a problem with the cooling water or the shielding gas supply, check the cooling water or the shielding gas line. How to ensure the quality of the workpiece As a teaching-reproduction robot, it is required that the assembly quality and accuracy of the workpiece must have a good consistency. The application of welding robots should strictly control the preparation quality of the parts and improve the assembly accuracy of the weldments. Part surface quality, groove size and assembly accuracy will affect weld tracking. Parts preparation quality and weldment assembly accuracy can be improved in the following aspects. (1) Prepare the welding process for the welding robot, and carry out strict technical regulations on the part size, weld bevel and assembly dimensions. The tolerance of the general part and groove size is controlled at ±0.8mm, and the assembly size error is controlled within ±1.5mm. The probability of welding defects such as air holes and undercuts in the weld can be greatly reduced. Semiconductor Parts Semiconductor Parts YANGZHOU POSITIONING TECH CO., LTD. , https://www.yzpst.com