简介
Main techniques encountered in selecting,using and developing of NC machine tools are inroduced in this book,which including:features of NC machine,NC machining programming,controlling principle and CNC unit of machine tools,position measurement devices,and servo systems of spindle and feed.The developing trend of CNC technology is brief introduced at the end of the book.Some exercises are given at each chapter for self-study of readers.
This book can be used for textbook of bilingual teaching of numerical technology for the students of mechanical engineering major,and reference for engineers in using and developing of CNC machine tools.
目录
Chapter 1 Introduction to Numerical Control
1.1 Fundamental of NC Technology
1.1.1 Development History of NC
1.1.2 Concept of NC and CNC
1.1.3 Basic Components of NC Machine Tools
1.2 Classifications of NC Machines
1.2.1 Types of NC Motion Control System
1.2.2 Types of NC Servo-Drive System
1.2.3 Application of CNC
1.3 Features of Numerical Control and Its Application Areas
1.3.1 Advantages and Disadvantages of NC
1.3.2 Application Areas for NC Machine Tools
Exercises
Chapter 2 NC Part Programming
2.1 Introduction
2.1.1 The Contents and Steps of Numerical Control Programming
2. 1.2 The Methods of NC Programming
2.1.3 The Basis of NC Part Programming
2.2 The Codes Used in CNC
2.2.1 Programming Language Format
2.2.2 Preparatory Functions （G Codes）
2.2.3 Miscellaneous Machine Functions （M Codes）
2.2.4 Other Words in the Format
2.3 Manual Part Programming
2.3.1 Programming of Hole Operations
2.3.2 Programming of CNC Lathe
2.3.3 Programming of Profiles Milling
2.4 Automatic Programming
2.4. 1 Computer-Aided Programming Languages
2.4.2 Interactive Computer Graphics Part Programming
2.5 The Verification and Simulation of NC Programs
2.5.1 The Aim and Significance of NC Programs' Verification and Simulation
2.5.2 Examples of Simulation
Exercises
Chapter 3 The Control Principle of Numerical Control Machine Tools
3.1 Introduction
3.2 Interpolation
3.2.1 The Method of Linear Multiplier-Based Interpolator
3.2.2 Linear-Circular Interpolation by the Evaluation Function Metlaod
3.2.3 The Method of Interpolation of Digital Differential Analyzers
3.3 Velocity Control of CNC Systems
3.4 Methods of Cutter Compensation in CNC System
3.4.1 Introduction of Compensation
3.4.2 Forms of Compensation
3.4.3 Cutter Radius Compensation
Exercises
Chapter 4 Computer Numerical Control Unit
4. 1 Introduction
4.1.1 NC System
4.1.2 CNC System and Functions of CNC Unit
4.1.3 Functional Interface Between Hardware and Software in CNC Unit
4.2 Hardware Architecture of CNC Unit
4.2.1 Types of CNC Unit
4.2.2 Typical CNC Units
4.3 CNC System Software
4.3.1 Classification of Software in CNC System
4.3.2 Control Software
4.3.3 Managing Software
4.3.4 Architecture of GNC System Software
4.3.5 System Software of HuaZhong I CNC
4.4 PLC Functions in CNC Unit
4.4.1 Build-in Type PLC
4.4.2 Stand-Alone Type PLC
4.4.3 Implementing of M,S,T Functions
4.5 Human-Machine Interface and Operation Sequence of CNC System
4.5.1 The Two Most Basic Operation Panels
4.5.2 Manual Controls
4.5.3 Operation Sequences of CNC System
4. 6 Open Architecture System for CNC Unit
4.6.1 Application Domain Analysis
4.6.2 Plug-and-Play Model
4.6.3 Behavior Model
4.6.4 Collaboration
4.6.5 Prospect of Open Architecture for Manufacturing System
Exercises
Chapter 5 Position Measuring Devices
5.1 The Requirement and Classification for Position Measuring Devices
5.1.1 The Requirement for Position Measuring Devices
5.1.2 Classification for Position Measuring Devices
5.2 Encoder
5.2.1 Absolute Encoders
5.2.2 Incremental Encoders
5.3 Optical Grating
5.3.1 The Principle of the Optical Grating
5.3.2 Application
5.4 Resolver
5.4.1 The Configuration and Principle of the Resolver
5.4.2 Application of resolver
5.5 Inductosyn
Exercises
Chapter 6 The Servo System of Numerical Control Machine Tools
6.1 Introduction
6.1.1 Basic Concept of S。ervo System
6.1.2 Classification of Servo System
6.1.3 Basic Requirement for Servo System
6.2 Servo System Using Stepper Motor
6.2.1 Principle of Stepper Motor
6.2.2 Characteristic Parameters of Stepper Motor
6.2.3 Control and Drive of Stepper Motor
6.2.4 Design of Open-Loop Positioning System
6.3 Servo System with AC Motor
6.3.1 Squirrel-Cage Induction Motor Used in Spindle System
6.3.2 Synchronous AC Motor
6.3.3 Principle of Speed Control for AC Motor
6.3.4 Speed and Position Control System for AC Motor
6.4 Design of Feed Servo System of Machine Tool
6.4.1 Engineering Analysis of NC Closed-Loop Position System
6.4.2 Torque Requirements of Feed System
6.4.3 Matching of Load Inertia and Motor's Inertia。
6.4.4 Natural Frequency of Feed System
6.4.5 Following Error and Its Effect to Machining Precision
Exercises
Chapter 7 The Development of NC Technology and Automation of Manufacturing
7.1 The Development of NC Technology
7.1.1 Introduction
7.1.2 The Development of NC Technology
7.2 Automation of Manufacturing
7.2.1 Introduction
7.9.2 Flexible Manufacturing System
7.2.3 Computer Integrated Manufacturing System
Exercises
附录 生词表与难点解释
References
1.1 Fundamental of NC Technology
1.1.1 Development History of NC
1.1.2 Concept of NC and CNC
1.1.3 Basic Components of NC Machine Tools
1.2 Classifications of NC Machines
1.2.1 Types of NC Motion Control System
1.2.2 Types of NC Servo-Drive System
1.2.3 Application of CNC
1.3 Features of Numerical Control and Its Application Areas
1.3.1 Advantages and Disadvantages of NC
1.3.2 Application Areas for NC Machine Tools
Exercises
Chapter 2 NC Part Programming
2.1 Introduction
2.1.1 The Contents and Steps of Numerical Control Programming
2. 1.2 The Methods of NC Programming
2.1.3 The Basis of NC Part Programming
2.2 The Codes Used in CNC
2.2.1 Programming Language Format
2.2.2 Preparatory Functions （G Codes）
2.2.3 Miscellaneous Machine Functions （M Codes）
2.2.4 Other Words in the Format
2.3 Manual Part Programming
2.3.1 Programming of Hole Operations
2.3.2 Programming of CNC Lathe
2.3.3 Programming of Profiles Milling
2.4 Automatic Programming
2.4. 1 Computer-Aided Programming Languages
2.4.2 Interactive Computer Graphics Part Programming
2.5 The Verification and Simulation of NC Programs
2.5.1 The Aim and Significance of NC Programs' Verification and Simulation
2.5.2 Examples of Simulation
Exercises
Chapter 3 The Control Principle of Numerical Control Machine Tools
3.1 Introduction
3.2 Interpolation
3.2.1 The Method of Linear Multiplier-Based Interpolator
3.2.2 Linear-Circular Interpolation by the Evaluation Function Metlaod
3.2.3 The Method of Interpolation of Digital Differential Analyzers
3.3 Velocity Control of CNC Systems
3.4 Methods of Cutter Compensation in CNC System
3.4.1 Introduction of Compensation
3.4.2 Forms of Compensation
3.4.3 Cutter Radius Compensation
Exercises
Chapter 4 Computer Numerical Control Unit
4. 1 Introduction
4.1.1 NC System
4.1.2 CNC System and Functions of CNC Unit
4.1.3 Functional Interface Between Hardware and Software in CNC Unit
4.2 Hardware Architecture of CNC Unit
4.2.1 Types of CNC Unit
4.2.2 Typical CNC Units
4.3 CNC System Software
4.3.1 Classification of Software in CNC System
4.3.2 Control Software
4.3.3 Managing Software
4.3.4 Architecture of GNC System Software
4.3.5 System Software of HuaZhong I CNC
4.4 PLC Functions in CNC Unit
4.4.1 Build-in Type PLC
4.4.2 Stand-Alone Type PLC
4.4.3 Implementing of M,S,T Functions
4.5 Human-Machine Interface and Operation Sequence of CNC System
4.5.1 The Two Most Basic Operation Panels
4.5.2 Manual Controls
4.5.3 Operation Sequences of CNC System
4. 6 Open Architecture System for CNC Unit
4.6.1 Application Domain Analysis
4.6.2 Plug-and-Play Model
4.6.3 Behavior Model
4.6.4 Collaboration
4.6.5 Prospect of Open Architecture for Manufacturing System
Exercises
Chapter 5 Position Measuring Devices
5.1 The Requirement and Classification for Position Measuring Devices
5.1.1 The Requirement for Position Measuring Devices
5.1.2 Classification for Position Measuring Devices
5.2 Encoder
5.2.1 Absolute Encoders
5.2.2 Incremental Encoders
5.3 Optical Grating
5.3.1 The Principle of the Optical Grating
5.3.2 Application
5.4 Resolver
5.4.1 The Configuration and Principle of the Resolver
5.4.2 Application of resolver
5.5 Inductosyn
Exercises
Chapter 6 The Servo System of Numerical Control Machine Tools
6.1 Introduction
6.1.1 Basic Concept of S。ervo System
6.1.2 Classification of Servo System
6.1.3 Basic Requirement for Servo System
6.2 Servo System Using Stepper Motor
6.2.1 Principle of Stepper Motor
6.2.2 Characteristic Parameters of Stepper Motor
6.2.3 Control and Drive of Stepper Motor
6.2.4 Design of Open-Loop Positioning System
6.3 Servo System with AC Motor
6.3.1 Squirrel-Cage Induction Motor Used in Spindle System
6.3.2 Synchronous AC Motor
6.3.3 Principle of Speed Control for AC Motor
6.3.4 Speed and Position Control System for AC Motor
6.4 Design of Feed Servo System of Machine Tool
6.4.1 Engineering Analysis of NC Closed-Loop Position System
6.4.2 Torque Requirements of Feed System
6.4.3 Matching of Load Inertia and Motor's Inertia。
6.4.4 Natural Frequency of Feed System
6.4.5 Following Error and Its Effect to Machining Precision
Exercises
Chapter 7 The Development of NC Technology and Automation of Manufacturing
7.1 The Development of NC Technology
7.1.1 Introduction
7.1.2 The Development of NC Technology
7.2 Automation of Manufacturing
7.2.1 Introduction
7.9.2 Flexible Manufacturing System
7.2.3 Computer Integrated Manufacturing System
Exercises
附录 生词表与难点解释
References
Numerical Control Technology
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