Six-axis welding robots, with their six degrees of freedom, offer a wide welding range, flexible joints, and ease of operation. This article summarizes the following common issues related to six-axis robots.
Weld size mismatch
Weld dimensions mainly refer to the width and height of the weld. Generally, the welding speed, current, voltage and welding range set by the system are constant. If a mismatch occurs, the wire feeding mechanism needs to be checked. Wear of the wire feeder or blockage of the wire feed nozzle can lead to a mismatch in weld dimensions.
The phenomenon of weld misalignment occurred.
Weld misalignment requires re-grinding the weld, which can easily lead to low production efficiency and delays in the company's production plan. Weld misalignment may be due to inaccurate welding torch positioning; workers can correct the welding position, and it is also necessary to check whether the system settings are consistent.
solder spatter
Weld spatter appears as small, granular dots on the welded workpiece, affecting weld quality. To detect weld spatter, check if the workpiece material meets welding requirements, the hydrogen and nitrogen content of the welding material, and whether the welding wire is too long. In daily welding operations, use a high-quality gas-shielded welding method to prevent weld spatter.
Burned robotic arm
Welding robots can replace humans in dangerous and harmful environments, but this also brings another problem: although the machines do not breathe and are not afraid of toxic gases, welding involves spraying high-temperature sparks that often "burn" the robot's arms.
In view of this situation, protective covers can be added to welding robots to adopt a stepped protection scheme to ensure that the robot's welding arm and pipelines are not burned by flying sparks.
Injury accident
When welding robots are operating online, accidents that accidentally injure people can sometimes occur. This requires that staff must never enter the area where the robot is within its safe operating range, and that there should be no interference within its operating range. This is the most important principle of welding robot safety management.
In addition, corresponding reliable measures should be taken, such as installing guardrails around the welding robot; installing pluggable electrical contact switches on the safety gate at the guardrail entrance so that the power to the robot can be quickly cut off in case of an emergency; and installing multiple emergency stop buttons near the robot's workstation so that the robot can be stopped in case of an emergency.
In daily welding operations, it is important to select appropriate welding materials, perform welding operations in the correct sequence, optimize welding system parameters in a timely manner, and update data promptly to avoid problems that could affect the company's production process.
The above summarizes the common problems and solutions encountered by six-axis welding robots in daily welding work. Prevention is better than cure. Enterprises should perform regular maintenance on six-axis welding robots to avoid problems that could slow down the production process.
