What guarantees the machining accuracy of machine tools?

2. Semi closed loop control feed servo system

The position detection device is installed at the end of the driving motor or the end of the screw rod, which is used to detect the rotation angle of the screw or servo motor, and indirectly measure the actual position of the moving parts of the machine tool, and send it back to the control system through feedback. Due to the improvement of mechanical manufacturing level and the improvement of speed detection element and screw pitch accuracy, the semi closed loop CNC machine tool has been able to achieve quite high feed accuracy. Most machine tool manufacturers widely use semi closed loop CNC system.

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