This assembly line consists of 2 manual loading and unloading stations, a metal sheet assembly mechanism, and three switch assembly units forming an eight-station indexing rotary workstation. Each switch assembly station is equipped with a single CCD for positioning. A four-axis robotic arm completes the loading and assembly of the switches. With the assistance of CCD and lighting components, precise positioning is achieved. The metal sheet assembly mechanism uses the Tianji Robot TR8 for incoming material visual positioning and gripping, and assembly hole detection, completing the side assembly of metal sheets. The Tianji Robot TR8 perfectly addresses various issues related to special assembly angles and travel requirements that cannot be met, providing customers with efficient, precise, and stable service.