The customer is one of the world's leading suppliers of power piston assembly systems, and its main product, cylinder liners, is among the industry leaders in terms of production and sales volume. In order to ensure product quality and order delivery speed, a large number of robots are used to complete automated CNC loading. The cylinder liner is a hollow cylindrical structure, with various stacking postures when the material comes from the material frame, the AGV is not allowed to stop when transporting the material frame, and the relative displacement caused by the sliding of the cylinder liner during the transport process has increased the randomness of the workpiece position. By using the laser 3D vision system with a large field of view, the customer can realise the coverage of different sizes of the incoming material frame to meet the requirement for the same line processing.