機床數(shù)控技術(shù)（第2版）

目 錄
第1 章 數(shù)控技術(shù)概述 ···································································································.1
1.1 機床數(shù)控技術(shù)的基本概念 ·······················································································.2
1.2 數(shù)控機床的組成及工作原理 ····················································································.2
1.2.1 數(shù)控機床的組成 ·························································································.2
1.2.2 數(shù)控機床的工作原理 ···················································································.5
1.3 數(shù)控機床的分類 ···································································································.7
1.3.1 按工藝用途分類 ·························································································.7
1.3.2 按運動軌跡分類 ·······················································································.10
1.3.3 按伺服控制分類 ························································································.11
1.3.4 按功能水平分類 ·······················································································.13
1.3.5 按聯(lián)動軸數(shù)分類 ·······················································································.14
1.4 數(shù)控機床的特點及應(yīng)用范圍 ··················································································.17
1.4.1 數(shù)控機床的特點 ·······················································································.17
1.4.2 數(shù)控機床的應(yīng)用范圍 ·················································································.18
1.5 數(shù)控機床的發(fā)展概況與發(fā)展趨勢 ············································································.18
1.5.1 數(shù)控機床的發(fā)展概況 ·················································································.18
1.5.2 數(shù)控機床的發(fā)展趨勢 ·················································································.20
思考與練習(xí) ··············································································································.28
第2 章 計算機數(shù)控系統(tǒng) ·····························································································.29
2.1 概述 ················································································································.30
2.1.1 CNC 系統(tǒng)的組成 ······················································································.30
2.1.2 CNC 系統(tǒng)的功能 ······················································································.30
2.1.3 CNC 系統(tǒng)的一般工作過程 ··········································································.33
2.2 CNC 系統(tǒng)的硬件結(jié)構(gòu) ··························································································.35
2.2.1 單CPU 結(jié)構(gòu)CNC 系統(tǒng) ··············································································.35
2.2.2 多CPU 結(jié)構(gòu)CNC 系統(tǒng) ··············································································.37
2.3 CNC 系統(tǒng)的軟件結(jié)構(gòu) ··························································································.38
2.3.1 CNC 系統(tǒng)的軟/硬件功能界面 ······································································.38
2.3.2 CNC 系統(tǒng)的軟件結(jié)構(gòu)特點 ··········································································.39
2.3.3 CNC 系統(tǒng)的軟件結(jié)構(gòu)模式 ··········································································.42
2.4 可編程控制器 ····································································································.43
2.4.1 概述 ······································································································.43
2.4.2 PLC 在數(shù)控機床上的應(yīng)用 ···········································································.48
2.5 插 補 ··········································································································.56
2.5.1 插補的定義 ·····························································································.56
2.5.2 對插補器的基本要求 ·················································································.56
2.5.3 插補方法的分類 ·······················································································.57
2.5.4 主要的插補方法 ·······················································································.58
2.6 刀具半徑補償 ··································································································