Method and system for injecting cutting fluid during milling under different working conditions

A method for injecting cutting fluid during milling different working conditions, comprising:

• analyzing an airflow field in a milling area under different working conditions on injection of cutting fluid, analyzing a rule of a helical angle and a rotation speed of a milling cutter on the airflow field, determining an optimal target distance of a nozzle, an angle between the nozzle and the milling cutter feeding direction and an angle between the nozzle and a surface of a workpiece, setting the nozzle according to a determined setting manner, and spraying lubricating oil to the milling area by utilizing the nozzle;
• wherein an optimal nozzle position varies with change in a helical angle and a rotation speed of a milling cutter;
• an angle between the nozzle and a milling cutter feeding direction is related to the helical angle of the milling cutter;
• the angle between the nozzle and the milling cutter feeding direction is the same as the helical angle;
• a target distance of the nozzle is related to the rotation speed of the milling cutter, and a diameter of the milling cutter does not affect a position of the nozzle.