Kazakh Agro-technical university named after S Seyfullin Department

Kazakh Agro-technical university named after S. Seyfullin Department of Technological machines and equipment Systems of numerical control of machine tools - CNC machine tools Introduction to CNC machining Lecturer: Cand. Tech. Sci. , Senior Lecturer U. Kakimov © KATU S. Seyfullin, 2016

Content The architecture of NC machine tools and machining operation flow Machine control system, classification of machine control systems software, specifications and design features of the numerical control systems Point-to-Point NC Straight cut NC Contouring NC

Introduction The aim of this lecture is to define the fundamentals of CNC machining, features of different types of processing and types of employed tools. Numerically controlled (CNC) machine tool, robot, another object will be called the way of management on the basis of the prepared control program, the main indicators of which are given in digital form. Under the CNC will understand the device outputs a control influence on the controlling devices of the object in accordance with the managing softwares, algorithms, processing and information on the state of the managed object.

The architecture of NC machine tools and machining operation flow

Model of equipment management from CNC

Machine control system, classification of machine control systems software, specifications and design features of the numerical control systems Point-to-Point NC Point-to-point is also sometimes called a positioning system. In PTP the objective of the machine tool control system is to move the cutting tool to predefined location. The speed or path by which this movement is accomplished is not important in point-to-point NC. Straight cut NC Straight cut control systems are capable of moving the cutting tool parallel to one of the major axes at a controlled rate suitable for machining. It is therefore appropriate for performing milling operations to fabricate workpieces of rectangular configurations. Contouring NC Contouring is the most complex flexible and the most expensive type of machine tool control. It is capable of performing both PTP and straight cut operations.

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