The 6-axis robotic arm adopts high-strength aluminum alloy material and precision casting process, which has the advantages of light weight, high rigidity, strong load-bearing capacity and long service life, and can realize flexible movement in 360 degrees without dead angle, adapting to complex welding positions such as plane welding, vertical welding, horizontal welding, overhead welding and curved surface welding, and easily completing various complex welding tasks that are difficult for manual operation.