JB/T 9909.2- 99 This standard is a revision of ZB J55 031-88 "Vertical Rotary Table Surface Grinding Machine Precision". During the revision, only editorial changes were made according to relevant regulations, and the technical content has not changed. This standard is part of the series of standards JB/T 9909 "Vertical Rotary Table Surface Grinding Machine", which includes the following three parts: JB/T 9909.1-1999 Vertical Rotary Table Surface Grinding Machine Series JB/T 9909.2-1999 Vertical Rotary Table Surface Grinding Machine Precision Inspection JB/T 9909.3-1999 Vertical Rotary Table Surface Grinding Machine Technical Conditions The standards that match this series of standards are: GB/T 10927-1989 Vertical Rotary Table Surface Grinding Machine Parameters This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of vertical rotary table surface grinding machines. This standard is applicable to vertical spindle rotary table surface grinders with normal accuracy and worktable diameter of 500~1600mm. This standard was first issued in May 1981 as JB 2998-81 and revised for the first time on October 12, 1988. JB/T 9909.2-1999 Vertical spindle rotary table surface grinder accuracy inspection JB/T9909.2-1999 standard download decompression password: www.bzxz.net

IC5 25.080.50
Machinery Industry Standard of the People's Republic of China
JB/T9909.1-9909.3—1999
Vertical Spindle Surface Grinding Machine
1999-05-2 Issued
State Bureau of Machinery Industry
Implementation on 2000-01-01
This standard is designed on the basis of 55031-88 Vertical Spindle Surface Grinding Machine. The content of this standard is consistent with that of ZRJ55031.88, and only the relevant provisions have been re-edited. This standard is part of the [BT9909 Vertical Spindle Circular Table Surface Grinding Machine] series of standards, which includes the following parts: JB/T9909.1-1999 Vertical Spindle Circular Table Surface Grinding Machine Series Model JB9909.2-1999 Vertical Spindle Surface Grinding Machine Surface Test JB/T9909.1-1999 Vertical Spindle Surface Grinding Machine Technical Conditions The standards matching this standard are:
GB10927-1989 Vertical Spindle Circular Table Surface Grinding Machine Technical Conditions of this standard from the implementation of the Z0J55031-8. This standard was proposed by the Tianjin Metal Cutting Machine Standardization Technical Committee. This standard belongs to the Tianjin Metal Cutting Machine Standardization Technical Committee Surface Grinding Machine Branch. The responsible drafting unit of this standard is: Tianjin Grinding Machine General Factory. This standard was first issued in May 1981 as JB2998m81. It was first revised in October 1988. This is the second revision. Scope
Machinery Industry Standard of the People's Republic of China
Vertical Rotary Table Surface Grinding Machine Precision Inspection
Technical Standard specifies the requirements and inspection methods for the geometrical viscosity and working viscosity of vertical rotary table surface grinding machines. This standard is applicable to 1Vertical Rotary Table Surface Grinding Machines with normal precision and working table diameter of 500~1600mm 2Referenced Standards
JB/T.9909.2—1999
55U3188
The provisions contained in the following standard deviations constitute the provisions of this standard through reference in this standard. When this standard is published, the versions indicated are valid: All standards are subject to revision. Parties using this standard should explore the possibility of using the most recent version of the standard: GD17421.1-1998 General Rules for Inspection of Machine Tools Part 1: Geometry of Machine Tools under No-load or With-load Conditions 3 General Requirements
3.1 The use of this standard should refer to GR17421.1, which is the installation before inspection, the idle operation of the main engine and other moving parts, the inspection and adjustment methods and the accuracy of the inspection tools.
3.1 Before inspecting the machine tool, the installation level of the machine tool should be adjusted first. The longitudinal distance should not exceed 0.02/100M and the lateral distance should not exceed 0.04/1000
3.3 The order of inspection items listed in this standard does not represent the actual inspection order. In order to facilitate the installation and inspection of some tools, the inspection can be carried out in any orderwww.bzxz.net
3.4 ​​When inspecting the working accuracy, the test piece should be tested after the precision. 3.5 When the measured length is different from the length specified in this standard, the tolerance should be calculated according to the provisions of 2.3.1.1 of GB/T 17421.199, according to the length that can be measured. When the conversion method is 0.1mm, it is still 0.001mm. 3.6 According to the agreement between the user and the manufacturer, the inspection items can be increased or decreased. Xuejia Machinery Industry needs approval on 1999-05-206
2000-01-01 implementation
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