JB/T 9914-1999 This standard is a revision of ZB J55 010-87 "Precision of high-precision external cylindrical grinding machines". The standards that match this standard are: GB/T 4684-1994 Parameters of external cylindrical grinding machines JB/T 7418.1-1994 Series of external cylindrical grinding machines JB/T 7418.2-1994 Technical conditions for external cylindrical grinding machines This standard specifies the requirements and inspection methods for geometric accuracy inspection and working accuracy inspection of high-precision external cylindrical grinding machines. This standard is applicable to high-precision external cylindrical grinding machines with a maximum grinding diameter of 50~320mm, a maximum grinding length of 150~1500mm, and a high-precision movable worktable. This standard was first issued in May 1987. JB/T 9914-1999 Precision inspection of high-precision external cylindrical grinding machines JB/T9914-1999 Standard download decompression password: www.bzxz.net

ICS25.080.50
Machinery Industry Standard of the People's Republic of China
JBT9914-1999
High Precision Cylindrical Grinding Machine
Published on 1999-05-2
National Bureau of Machinery Industry
Precision Inspection
Implementation on 2000-01-01
JB/T99E41999
This standard is revised on the basis of 2B155010-87 High Precision Cylindrical Grinding Machine Precision. The original version was formulated with reference to the requirements of advanced foreign standards.
This standard is consistent with the technical content of ZBJ55010-87, and has been re-edited according to relevant regulations. The standards supporting this standard are:
GB/T4684-1994
JB/T7418.1-1994
Number of external grinding machines
Number of external grinding machines
B/T74182-1994 Technical conditions for external grinding machines This standard replaces ZHJ5510-87 from the date of implementation. This standard is proposed by the National Metalworking Cutting Machine Standardization Technical Inspection Association. This standard is under the jurisdiction of the National Metalworking Cutting Machine Standardization Technical Inspection Association. The responsible drafting unit of this standard is: Shanghai Grinding Machine Research Institute. This standard was first issued in May 1987.
1 Scope
Machinery Industry Standard of the People's Republic of China
High Precision External Grinding Machine
Precision Inspection
JB/T9914—1999
Generation 7.R155010-87
This standard specifies the requirements and inspection methods for the geometric accuracy inspection and workpiece inspection of high precision external cylindrical grinding machines. The standard is applicable to high precision external cylindrical grinding machines with maximum grinding diameter of 50~320mm, maximum grinding length of 150~1500mm, and high precision workpiece movable type.
2 Referenced Standards
The provisions contained in the following standards are incorporated into the text of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision. All parties using this standard shall discuss the possibility of using the following standards as new versions. GR:T11821996
General rules, definitions, symbols and drawing representations of shapes and positions GBT17421.11998 General rules for machine tool inspection Part 1: Geometry of machine tools under no-load or machining conditions 3 General requirements
3.1 When using this standard, refer to the relevant provisions of GBT17421!, especially the installation before inspection, the dry operation of the spindle and other parts, the inspection method and the accuracy of the inspection work. 3.2 Adjust the installation level in accordance with the provisions of 3.1 in GBT17421.1--1998. The readings of the level in the longitudinal and axial directions shall not exceed 0.03/100
3.3 Before inspection, the actual inspection order can be arranged according to the requirements of the inspection tools and inspection items. 3.4 When the actual measured length is different from the length specified in this standard, the length should be calculated according to the provisions of 2.3.1.1 of 200B17421.1-199 according to the measurable length. When the calculated length is less than 0.001mm, it is still calculated as 0.001mm. 3.5 During the working accuracy test, the test piece will be tested after a short delay. 3.6 According to the agreement between the user and the manufacturer, the inspection items can be increased or decreased: 3.7: The inspection items, tools and measurements specified in this standard can be used with other inspection tools without lowering the requirements. The tools are the most suitable.
National Machinery Industry Corporation 1999-05-20 approved 2000-01-01 implementation
JB/T9914-1999
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