4060 mini engraving machine company believes that the engraving machine is in the numerical control machine tool, and the electric spindle usually adopts the method of frequency conversion speed regulation. At present, there are mainly three control methods: ordinary frequency conversion drive and control, vector control drive drive and control, and direct torque control.

　　The 4060 mini engraving machine company thinks that ordinary frequency conversion is scalar drive and control, and its drive control characteristic is constant torque drive, and the output power is directly proportional to the speed. The dynamic performance of ordinary frequency conversion control is not ideal, the control performance is not good at low speed, the output power is not stable enough, and it does not have the C-axis function. But the price is cheap and the structure is simple, and it is generally used in grinding machines and ordinary high-speed milling machines.

　　4060 mini engraving machine company believes that the vector control technology imitates the control of a DC motor, orients the rotor magnetic field, and realizes drive and control by vector transformation, which has good dynamic performance.

　　4060 mini engraving machine company believes that direct torque control is another new type of high-performance AC speed regulation technology developed after vector control technology. Its control idea is novel, the system structure is simple and clear, and it is more suitable for the drive of high-speed electric spindle. It can better meet the requirements of dynamic and static characteristics of high-speed motorized spindle with high speed, wide speed range, high-speed instantaneous stop, and has become a hot technology in the field of AC transmission.