Bathtubs need to be drilled with poor site environment, high noise and vibration. The customer uses robots to drill holes, which improves work efficiency and effectively reduces labour costs at the same time. Since the working surface of drilling is usually curved and has different depths, the 3D vision system acts as the robot's two eyes and command, providing the robot with the positional information of drilling by accurately positioning the holes. Strong vibrations in the drilling process place high demands on the stability of the 3D camera installed at the end of the robot arm. We provide our customers with binocular imaging solutions whose structure and image stability have been successfully tested in mass production.