Abstract
The CNC milling machine designed in this paper is mainly composed of car, fixture parts, moving detection device, horizontal sliding table, milling head, vertical slide, hydraulic system, lubrication system, electrical control and detection system. In this paper, we propose a method to replace the grinding process with high efficiency milling in the machining of rail welds. The double milling head is used to roll the milling structure. The detection technology is used to detect the large error rails and adopt the appropriate procedure to carry out the shaping process. Use the device to prevent over milling, to ensure that there will be no milling loss phenomenon. The experimental results show that the system has a high stability, improve the working efficiency and automation of the welding plant, and improve the safety of workers and equipment.