本次修訂的主要內容：1.章節結構的調整；修改了原規范的章、節名稱和機床的名稱。2.修改和調整了部分金屬切削機床的幾何精度檢測方法和允許偏差；3.增加了重型深孔鉆鏜床和小型組合機床的安裝。

GB50271-2009······1

1 總則······10

2 基本規定······11

3 車床······17

3.1 單軸縱切、臥式多軸自動車床······17

3.2 回輪、轉塔車床······17

3.3 單柱、雙柱立式車床······20

3.4 臥式車床······23

3.5 重型臥式車床······26

4 鉆床······35

4.1 搖臂鉆床······35

4.2 立式鉆床······37

5 鏜床······39

5.1 重型深孔鉆鏜床······39

5.2 坐標鏜床······49

5.3 臥式銑鏜床······53

5.4 落地鏜床、落地銑鏜床······58

5.5 刨臺臥式銑鏜床······58

5.6 精鏜床······68

6 磨床······72

6.1 無心外圓磨床······72

6.2 外圓磨床······72

6.3 內圓磨床······73

6.4 導軌磨床······74

6.5 刀具刃磨床······82

6.6 平面、端面磨床······84

6.7 立式內圓珩磨機······86

7 齒輪加工機床······87

7.1 錐齒輪加工機······87

7.2 滾齒機······87

7.3 剃齒機······89

7.4 插齒機······89

7.5 花鍵軸銑床······91

7.6 齒輪磨齒機······93

8 螺紋加工機床······94

8.1絲錐磨床······94

8.2 螺紋磨床······94

8.3絲杠車床······96

9 銑床······98

9.1 龍門銑床······98

9.2 平面銑床······104

9.3 升降臺銑床、搖臂銑床、萬能工具銑床······106

10 刨插床······107

10.1 懸臂刨床、龍門刨床······107

10.2插床······112

10.3 牛頭刨床······114

11 拉床······115

11.1 立式內拉床······115

11.2 臥式內拉床······116

11.3 立式外拉床······118

12 鋸床······120

13 特種加工機床······121

14 組合機床······122

14.1 鉆鏜組合機床······122

14.2 銑削組合機床······124

14.3 攻絲組合機床······125

14.4 小型組合機床······127

14.5 組合機床自動線······129

15 工程驗收······133

附錄A 本規范適用的金屬切削機床范圍······134

附錄B 直線度偏差值的計算······137

本規范用詞說明······138

附:條文說明······140

1 總則······143

2 基本規定······145

3 車床······148

3.1 單軸縱切、臥式多軸自動車床······148

3.2 回輪、轉塔車床······148

3.3 單柱、雙柱立式車床······149

3.4 臥式車床······149

3.5 重型臥式車床······149

4 鉆床······150

4.1 搖臂鉆床······150

4.2 立式鉆床······150

5 鏜床······151

5.1 重型深孔鉆鏜床······151

5.2 坐標鏜床······151

5.3 臥式銑鏜床······153

5.4 落地鏜床、落地銑鏜床······154

5.5 刨臺臥式銑鏜床······155

5.6 精鏜床······156

6 磨床······157

6.2 外圓磨床······157

6.4 導軌磨床······157

6.5刀具刃磨床······157

6.6 平面、端面磨床······158

6.7 立式內圓珩磨機······159

7 齒輪加工機床······160

7.1 錐齒輪加工機······160

7.2 滾齒機······160

7.3 剃齒機······160

7.4 插齒機······160

7.5 花鍵軸銑床······161

7.6 齒輪磨齒機······161

8 螺紋加工機床······162

8.1 絲錐磨床······162

8.2 螺紋磨床······162

8.3 絲杠車床······162

9 銑床······163

9.1 龍門銑床······163

9.2 平面銑床······164

9.3 升降臺銑床、搖臂銑床、萬能工具銑床······164

10 刨插床······165

10.1 懸臂刨床、龍門刨床······165

10.2 插床······165

10.3 牛頭刨床······165

11 拉床······167

11.1 立式內拉床······167

11.2 臥式內拉床······167

11.3 立式外拉床······167

12 鋸床······168

13 特種加工機床······169

14 組合機床······170

14.2 銑削組合機床······170

14.3 攻絲組合機床······170

14.4 小型組合機床······170

14.5 組合機床自動線······171

15 工程驗收······172