JB/T 9928.1-1999 CNC vertical lifting table milling machine accuracy inspection

This standard is a revision of ZB J54 014-88 "Precision of CNC Vertical Lift Table Milling Machine". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is part of the JB/T 9928 "CNC Vertical Lift Table Milling Machine" series of standards, which includes the following two parts: JB/T 9928.1-1999 "Precision Inspection of CNC Vertical Lift Table Milling Machine"; JB/T 9928.2-1999 "Technical Conditions of CNC Vertical Lift Table Milling Machine". The standards supporting this series of standards are: JB/T 2800.1-1999 "Lift Table Milling Machine Parameters"; JB/T 5599-1991 "Lift Table Milling Machine Series Spectrum". This standard specifies the technical requirements and inspection methods for the geometric accuracy, position accuracy and working accuracy of CNC vertical lift table milling machines. This standard is applicable to CNC vertical lift table milling machines with a worktable width of 200~500mm. This standard was first issued in November 1988. JB/T 9928.1-1999 CNC vertical lifting table milling machine accuracy inspection JB/T9928.1-1999 standard download decompression password: www.bzxz.net

JB/T 9928. 1~9928.2—1999
This standard is a revision of ZBJ54014—88 "Precision of CNC Vertical Lift Table Milling Machine" and ZBJ54015-88 "Technical Conditions of CNC Vertical Lift Table Milling Machine". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is a series of standards for "CNC Vertical Lift Table Milling Machine", including the following two parts: JB/T9928.1—1999 Precision inspection of CNC vertical lift table milling machine JB/T9928.2—1999 Technical conditions of CNC vertical lift table milling machine Part 2 of this series of standards (i.e. JB/T9928.2) is a specific and supplementary to GB/T9061--1988 "General Technical Conditions for Metal Cutting Machine Tools".
Standards supporting this series of standards include:
JB/T2800.1—1999 Parameters of lifting table milling machines JB/T5599--1991 Series of lifting table milling machines This standard replaces ZBJ54014—88 and ZBJ54015—88 from the date of implementation. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Milling Machine Branch of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The responsible drafting unit of this standard is Beijing Milling Machine Research Institute. This standard was first issued in November 1988. 695
Mechanical Industry Standard of the People's Republic of China
CNC Vertical Lift Table Milling Machine
Precision Inspection
JB/T9928.1—1999
Replaces ZBJ54014—88
This standard specifies the technical requirements and inspection methods for the geometric accuracy, position accuracy and working accuracy of CNC vertical lift table milling machines. This standard is applicable to CNC vertical lift table milling machines with a worktable width of 200~500mm. 2 Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T10931-1989 Method for evaluating the position accuracy of digital controlled machine tools GB/T17421.1-1998 General rules for machine tool inspection Part 1: Geometric accuracy of machine tools under no-load or finishing conditions 3 General requirements
3.1 When using this standard, GB/T17421.1 must be referred to, especially the installation and inspection methods before accuracy inspection. 3.2 Refer to 3.1 of GB/T17421.1-1998 to adjust the installation level of the machine tool. Place the workbench in the middle of the stroke, place a level gauge in the center of the workbench, and the readings of the level gauge in the longitudinal and transverse directions shall not exceed 0.04/1000. 3.3 The order of accuracy inspection items listed in this standard does not represent the actual inspection order. In order to facilitate the installation and disassembly of inspection tools and inspection, inspections can be carried out in any order.
3.4 ​​Non-following moving parts (lifting platform, spindle box or spindle sleeve) should be locked during inspection. 3.5 The working accuracy test should be carried out after the test piece is finely processed. 3.6 When the measured length is different from the length specified in this standard, the tolerance should be converted according to the measurable length in accordance with the provisions of 2.3.1.1 of GB/T17421.1-1998. When the conversion result is less than 0.005mm, it is still calculated as 0.005mm. 3.7 According to the agreement between the user and the manufacturer, the inspection items can be increased or decreased. Approved by the State Bureau of Machinery Industry on May 20, 1999, 686
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