Research and application of high speed rail weld joint grinding robot system

In order to solve the problems of low efficiency, high labor intensity and insufficient accuracy of traditional manual grinding methods, a fully automatic rail weld grinding system based on industrial robots was proposed. The system uses Siemens S7-1500 series PLC as the core controller, cooperates with Yaskawa GP180 six-axis industrial robot, collects rail surface topography data in real time through laser displacement sensor, and combines flexible force control technology and dynamic trajectory compensation algorithm to achieve high-precision lamination and grinding of complex special-shaped surfaces. In addition, the system significantly improves the grinding efficiency and surface quality through the multi-grinding wheel cooperative operation and the millenoblade wear compensation mechanism. According to the actual production verification of the rail welding base, the grinding efficiency of the system is 6 minutes/weld, and the manual intervention rate is less than 4%, which effectively solves the bottleneck problem of insufficient automation of the rail welding production line.