众所周知“磨”在机械加工中必不可少，那就是磨床在机械加工中不可缺少。
As we all know, "grinding" is essential in machining, that is, grinding machine is indispensable in machining.

根据不同磨床轴杆类直径磨床大小，主砂轮电动机磨床转速等于砂轮输出磨床转速。磨削力磨床大小取决于砂轮电动机磨床输出转矩。
According to the diameter of the shaft and rod of different grinders and the size of the grinder, the speed of the main grinding wheel motor grinder is equal to the speed of the grinding wheel output grinder. Grinding force the size of the grinder depends on the output torque of the grinding wheel motor grinder.

在驱动工件旋转磨床主轴电动机磨床高速段，相对于砂轮输出转速不变，所加工磨床工件直径小， 磨削进给少；加工大直径，长轴类工件时，工件旋转磨床电动机在低速段，砂轮进给量大，砂轮磨削力也在变大，电动机很难在恒转矩或恒速度下运行。
In the high-speed section of the spindle motor grinder driving the workpiece rotary grinder, the workpiece diameter of the grinder is small and the grinding feed is small relative to the output speed of the grinding wheel; When machining large diameter and long axis workpieces, the motor of workpiece rotary grinder is in the low-speed section, the feed rate of grinding wheel is large, and the grinding force of grinding wheel is also increasing. It is difficult for the motor to operate under constant torque or constant speed.

根据系统运行磨床特点，考虑满足机械加工磨床磨床使用要求和设备投资费用等角度考虑，选用带自动转矩提升功能磨床矢量型变频器。根据砂轮电动机磨床功率不同选用18.5KW/15KW磨床变频器，具有自动转矩提升功能，柔性PWM控制，可实现更低噪音运行，多于10段磨床转速控制。
According to the characteristics of the grinding machine running in the system, considering the use requirements of the grinding machine for machining and the equipment investment cost, the vector frequency converter of the grinding machine with automatic torque lifting function is selected. According to the different power of grinding wheel motor grinding machine, 18.5kw/15kw grinding machine frequency converter is selected, which has automatic torque lifting function and flexible PWM control, which can realize lower noise operation and speed control of grinding machine with more than 10 sections.