Welding robot applications Problems and solutions

(1) Partial welding problems arise: Problems occur when incorrect position welding or torch for possible. In this case, to consider the TCP (gun center position) is accurate, and make adjustments. If this occurs frequently necessary to check the robot axes zero position, re-zero amended. (2) undercut problem: possible improper selection of welding parameters, torch angle or torch the wrong place, it can be properly adjusted. (3) appears as the pores questions: possibly gas poor piece of thick primer or protective gas not dry, make the appropriate adjustments can be handled. (4) Excessive splashing question: might choose to improper welding parameters, gas composition cause or extended wire length is too long, you can adjust the machine power to change the size of welding parameters, adjusting the ratio of gas analyzer to adjust the ratio of the mixed gas, adjust the relative position of the welding torch and the workpiece. (5) at the end of the weld crater formed after cooling a question: When you add a submerged pit programmable features work step, which can be filled. 4, in the welding process, common fault robot system (1) collided gun: It may be due to the workpiece or the torch assembly deviation occurs TCP inaccurate, you can check or correct fit of the torch TCP. (2) the emergence of an arc fault, not arc: It may be due to the wire does not come into contact with the workpiece or process parameters are too small, you can manually wire, adjust the distance between the torch and the weld, or properly adjusting the process parameters. (3) protective gas monitoring alarm: the cooling water or gas supply there fault protection, check the cooling water or gas line protection. 5. welding robot programming skills (1) a reasonable choice of welding sequence to reduce welding distortion, welding torch walking path length to develop welding sequence. (2) the transition space requirements torch shorter movement track, a smooth and safe. (3) optimization of the welding parameters, in order to obtain optimum welding parameters, making the work of the specimen and the welding procedure qualification tests. (4) using a reasonable position positioners, welding torch posture, position torch relative joints. After securing a workpiece on a positioner, continuous adjustment if the weld is not an ideal position and angle, it requires programming positioner, making welding seam weld sequence in accordance with successive reaches a horizontal position. Meanwhile, we must continue to adjust the position of the robot axes, reasonably determine the relative position of the torch fitting, angle and length of wire out. After the position of the workpiece is determined, joint position of the torch relative's eyes must be programmed observation difficult. This requires the programmer good at summing up experience. (5) inserted into the gun from the program in a timely manner, the preparation of a certain length of welding procedures, should be inserted into the spray gun program that can prevent weld spatter welding nozzle and contact tip clogging, ensure clean gun, increase nozzle life and ensure reliable arc, reduce welding spatter. (6) the preparation procedure is generally not in one step, to continue to examine and modify the program in the robot welding process, welding parameters and torch attitude adjustment, etc., will form a good program.