This part of JB/T 11570 specifies the requirements and inspection methods for geometric accuracy inspection, positioning accuracy inspection, and working accuracy inspection of CNC flat milling machines. This section is applicable to CNC vertical flat milling machines with a workbench width of 250mm to 630mm, CNC cylindrical flat milling machines with a workbench width of 250mm to 1600 mm, and CNC end face flat milling machines. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 17421.1-1998 General Rules for the Inspection of Machine Tools - Part 1: Geometric Accuracy of Machine Tools under No Load or Finishing Conditions - Part 2: Determination of Positioning Accuracy and Repetitive Positioning Accuracy of CNC Axes - GB/T 19660-2005 Industrial Automation Systems and Integrated Machine Tools - Numerical Control Coordinate Systems and Kinematic Nomenclature
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