The CNC bending machine for bus arc bars is specially developed and researched by our company for the two-dimensional and three-dimensional arc bars in the bus industry. This product inherits all the advantages of traditional CNC pipe bending machines, while also meeting the requirement of automatic bending of small radius and variable arc large radius products on the same pipe. The equipment has a bending function, which is controlled by an industrial computer, programmed in C language, and controlled by servo motors. It directly converts the X, Y, and Z coordinates into multi arc working dimensions for automatic arc bending. The product has a high degree of automation, and the bent products have good consistency, meeting the one-time molding of two-dimensional and three-dimensional arc rods, and receiving high praise from users.