关键词: 钢轨, 焊接接头, 数控系统, 铣床, 在线测量, 智能决策程序

Abstract: The principles and method of finish-milling process for rail weld seams were presented herein where the milling was used to instead of grinding, and the rail weld seams finish-milling machine were designed. The finish-milling machine might realize the non-contact high-precision measurements of the rail profiles, the automatic planning of the milling paths, the automatic control of the milling quantity and the online monitoring of the processing qualities, etc.. The damages of rail crystal structures and secondary deformations of welded joints caused by high temperature rises in traditional grinding were eliminated and the production efficiency and the quality of seamless rails were improved. This finish-milling machine is superior to imported refiners in welding precision, efficiency and environmental protection.

Key words: rail, welded joint, CNC system, milling machine, online measurement, intelligent decision making program