17-07-2014, 03:28 PM
ESHAN COLLEGE OF ENGGFARAH , MATHURA
ESHAN COLLEGE.pptx (Size: 235.21 KB / Downloads: 8)
Introduction of CNC
The evaluation of numerical technology has been closely related to and the development of computer technology.
In addition, the computer is being used to improve the NC part programming procedure through graphic & programming
Machine Tool
This can be any types of machine tool or equipments.
In order to obtain high accuracy & repeatability
Driving System
The driving system is an important component of a CNC machine as the accuracy and repeatability depend very much on the characteristics and performance of the driving system.
The motor is coupled either directly or through a gear box to the machine lead screw to moves the machine slide or the spindle.
Three types of electrical motors are commonly used.
DC servo motor – excellent speed regulation & high torque.
AC servo motor
Stepping motor – small machine due to limited power & torque.