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ENGINEERING-CHEMISTRY--II--->View question


Asked On2017-06-12 09:36:12 by:prajwalamv

Taged users:
milan-ransingh

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Components of the Numerical Control System are:-
There are three important components of the numerical control or NC system. These are:
1) Program of instructions
2)) Controller unit, also called as the machine control unit (MCU) and
3) Machine tool
1) Program of Instructions
The typical desktop program gives the instructions to the computers to perform certain functions. The program of instructions of the NC machine is the step-by-step set of instructions that tells the machines what it has to do. 
2) Controller Unit or Machine Controller Unit (MCU)
The controller unit is most vital parts part of the NC and CNC machines. The controller unit is made of the electronics components. It reads and interprets the program of instructions and converts them in the mechanical actions of the machine tool.
3) Machine Tool
It is the machine tool that performs the actual machining operations. The machine tool can be any machine like lathe, drilling machine, milling machine etc. The machine tool is the controlled part of the NC system. 
What is Numerical Control ?
Numerical control can be defined as a form of programmable automation in which process is controlled by numbers,letters and symbols. In NC,the numbers form a programme of instructions designed for a particular workpart or job. When job changes the program of instruction changes. This capability to change a program for each new job gives NC its flexibilty.
Numerical control should be considered as a possible mode of controlling the operation for any production situation possesing the following characteristics :
Similar workparts in terms of raw material (e.g. metal shock for machining) 
The work parts are produced in various sizes and geometries. 
The workparts are produced in batches of small to medium size quantities. 

Basic components of NC system
An operational numerical control system consists of the following three basic components:
1. Program of instructions. 
2. Controller unit, also called machine tool unit. 
3. Machine tool or other controlled process. 


Answerd on:2018-06-05 Answerd By:aksingh1818

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