What is the driving mechanism of NC machine tools?
The driving device receives a control signal output by the numerical control system and outputs a driving power to drive the motor. The driving device is used for controlling the motor speed, so it is also called the driving device for speed control unit; and because the driving device is power servo system in the amplification part, it is also called the driving device for servo drive unit or servo amplifier. (for reference only)
Servo drive role: accept the feed speed and displacement signals issued by CNC device, servo driver for certain conversion and amplification, the servo motor to drive the machine table movement, at the same time by the displacement sensor detection performs the actual position of the mechanism, and fed back to the CNC device, to achieve closed-loop driving speed, the position machine tool components to get accurate control.
The driving device of NC machine is the driving part of the executing mechanism of NC machine tool, including spindle drive unit, feed unit, spindle motor and feed motor, etc.. Under the control of numerical control unit, he realizes spindle and feed drive by electric or electrohydraulic servo system. When several feed linkage, you can complete the positioning, straight line, plane curve and space curve processing.The driving device is used to drive a traction member and a work member of a conveyor with a flexible traction member, or to drive a work member of a traction member without a traction member.
