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

根據不同磨床軸桿類直徑磨床大小，主砂輪電動機磨床轉速等于砂輪輸出磨床轉速。磨削力磨床大小取決于砂輪電動機磨床輸出轉矩。
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.

在驅動工件旋轉磨床主軸電動機磨床高速段，相對于砂輪輸出轉速不變，所加工磨床工件直徑小， 磨削進給少；加工大直徑，長軸類工件時，工件旋轉磨床電動機在低速段，砂輪進給量大，砂輪磨削力也在變大，電動機很難在恒轉矩或恒速度下運行。
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.

根據系統運行磨床特點，考慮滿足機械加工磨床磨床使用要求和設備投資費用等角度考慮，選用帶自動轉矩提升功能磨床矢量型變頻器。根據砂輪電動機磨床功率不同選用18.5KW/15KW磨床變頻器，具有自動轉矩提升功能，柔性PWM控制，可實現更低噪音運行，多于10段磨床轉速控制。
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.