Detail of GB 50271-2009

Introduction of GB 50271-2009

1.0.1 This code was formulated with a view to improving the construction level and promoting technical progress of metal-cutting machine installation engineering, guaranteeing the construction quality and safety, and improving economic benefit. 1.0.2 This code is applicable to the construction and acceptance of installation engineering of turning machine, drilling machine, boring machine, grinding machine, gear-cutting machine, thread cutting machine, milling machine, planning machine, slotting machine, broaching machine, sawing machine, special processing machine and combined machine specified in Annex A. 1.0.3 Metal-cutting machine installation engineering shall start with the equipment open package and then follow assembly, alignment, leveling, testing the relevant geometric accuracy, no-load commissioning qualification and engineering acceptance. 1.0.4 When the geometric accuracy is tested out of the requirements in this code, the preset accuracy of the corresponding parts may be adjusted. As for the completion acceptance, machines of integral installation shall be based on the installation level and machines of disintegrating installation shall be based on the geometric accuracy. The preset accuracy may not be retested. 1.0.5 Except for those requirements stipulated in this code, those in the current relevant ones of the nation also shall be complied with for the construction and acceptance of metal-cutting machine installation engineering.

Contents of GB 50271-2009

1 General Provisions 2 Basic Provisions 3 Turning Machine 3.1 Single-spindle Longitudinal and Horizontal Multi-spindle Automatic Machine 3.2 Drum and Turret Lathe 3.3 Single-column and Double-column Vertical Lathe 3.4 Horizontal Lathe 3.5 Heavy-duty Horizontal Lathe 4 Drilling Machine 4.1 Radial Drilling Machine 4.2 Vertical Drilling Machine 5 Boring Machine 5.1 Heavy-duty Deep-hole Drilling and Boring Machine 5.2 Jig-boring Machine 5.3 Horizontal Milling and Boring Machine 5.4 Floor Type Boring Machine and Floor Type Milling and Boring Machine 5.5 Planer Horizontal Milling and Boring Machine 5.6 Fine Boring Machine 6 Grinding Machine 6.1 Centerless Cylindrical Grinding Machine 6.2 Cylindrical Grinding Machine 6.3 Internal Grinding Machine 6.4 Guide Grinding machine 6.5 Cutter Grinding machines 6.6 Surface and Face Grinding Machines 6.7 Vertical Internal Cylindrical Honing Machines 7 Gear Cutting Machine 7.1 Angle Gear Cutting Machine 7.2 Hobbing Machine 7.3 Shaving Machine 7.4 Gear Slotting Machine 7.5 Spline Shaft Milling Machine 7.6 Gear Grinding Machine 8 Thread Cutting Machine 8.1 Tap-grinding Machine 8.2 Thread Grinding Machine 8.3 Lead Screw Cutting Machine 9 Milling Machine 9.1 Planer-type Milling Machine 9.2 Plain Milling Machine 9.3 Knee-and-column Milling Machine, Radial Milling Machine and Universal Tool Milling Machine 10 Planning and Slotting Machine 10.1 Open-side Planning Machines and Planning Machines 10.2 Slotting Machines 10.3 Transverse Planning Machines 11 Broaching Machines 11.1 Vertical Internal Broaching Machines 11.2 Horizontal Internal Broaching Machines 11.3 Vertical External Broaching Machines 12 Sawing Machines 13 Special Processing Machines 14 Combined Machines 14.1 Drilling and Boring Combined Machines 14.2 Combined Milling Machines 14.3 Combined Threading Machines 14.4 Small Combined Machines 14.5 Automatic Line of Combined Machine 15 Engineering Acceptance Annex A Application Scope of the Metal Cutting Machines in this Code Annex B Calculation of the Discrepancy in Straightness Explanation of Wording in this Code