为了提高圆锥滚子无心磨床工作台的进给精度及砂轮修整器修整砂轮的方便性、灵活性,该机床电气控制采用了西门子802C数控系统,其中工作台的进给和砂轮修整器的修整都是由伺服电机通过导轨、丝杆驱动的。我们在工作台上安装了一个光栅尺,使工作台的进给系统构成了一个完整的全闭环系统,保证了工作台1μ进给精度。用户通过编写修整器运动轨迹的程序,使砂轮修成用户工艺所需要的各种曲线,采用这种方法修整砂轮,精度高、速度快、操作方便,大大提高了砂轮修整的质量与效率。 In order to improve the feed precision of the conical roller centerless grinding machine table and the convenience and flexibility of dressing the wheel with the wheel dresser, the electrical control of the machine adopts the Siemens 802C numerical control system, in which the working table feed and the wheel dresser dressing Servo motor is driven by rail, screw-driven. We installed a grating on the workbench, which made the working table’s feeding system form a complete full-closed system, which ensured the working table 1μ precision. By programming the program of the dresser movement, the user modifies the grinding wheel into various curves required by the user’s process. By adopting this method, the grinding wheel is trimmed with high precision, high speed and convenient operation, thereby greatly improving the quality and efficiency of dressing of the grinding wheel.