The new hybrid system automated assembly line of the customer needs to complete the multi-station gripping and loading of various components, such as electronic control and box, etc. The workpiece pallet is transferred by forklift or AGV, and there is the in-place stopping deviation, and the workpieces will inevitably have sliding displacement in the transport link, resulting in uncertainty of the incoming material position. By introducing a 3D vision system, the workpiece can be accurately located and the robot can be guided to achieve accurate gripping and loading.