JB/T 9904.2-1999 This standard is a revision of ZB J55 040-89 "Precision of spline shaft grinders". This standard is part of the JB/T 9904 "Caliper grinder" series of standards: JB/T 9904.1-1999 Series of spline shaft grinders JB/T 9904.2-1999 Precision inspection of spline shaft grinders JB/T 9904.3-1999 Technical conditions for spline shaft grinders This standard specifies the requirements and inspection methods for geometric accuracy inspection and working accuracy inspection of ordinary spline shaft grinders. This standard is applicable to general-purpose spline shaft grinders with a maximum grinding diameter of 80~200mm and a maximum workpiece installation length of 500~3000mm. This standard was first issued in March 1989. JB/T 9904.2-1999 Spline shaft grinding machine precision inspection JB/T9904.2-1999 standard download decompression password: www.bzxz.net

ECS25.080.50
Machinery Industry Standard of the People's Republic of China
JBT9904.1-9904.3--1999
Spline shaft grinder
1999-05-20 Release
National Machinery Industry Bureau
2000-01-01 Implementation
B9904.2—1999
The small standard is revised on the basis of 7RJ55040-—89 chain shaft grinding machine accuracy. This standard is consistent with the technical content of 7.B355040-B9, and has only been edited according to relevant regulations. This standard is part of the JR/T9904 spline shaft grinder series of standards, which includes the following parts: JR/T9904.1-1999 Spline shaft grinder series JB/T9904.2-1999 Spline shaft grinder precision inspection IB.T9904.3-1999 Spline shaft grinder technical specifications The standards that match the standard are:
GB.T10930-1989 Spline shaft grinding machine
This standard replaces ZBJ55010-89 from the date of implementation. This standard was proposed by the National Metal Cutting Machine Standardization Technical Committee, and the National Metal Cutting Machine Standardization Technical Committee was established in this standard. The responsible unit for this standard is: Shanghai Machine Tool Factory. This standard was first issued in March 1989. Scope: Mechanical Industry Standard of the People's Republic of China. Precision Inspection of Spline Shaft Grinding Machines. JR/T9904,2-1999. Replacing ZBJ55040:89. This standard specifies the requirements and inspection methods for the precision inspection and working precision inspection of general-grade spline shaft grinding machines. This standard is applicable to spline shaft grinding machines with a maximum cutting diameter of 80-2Mhmm and a maximum installation length of 500-3000mm. 2 Referenced Standards: The following standards contain relevant texts, which constitute the provisions of the standards mentioned above through reference in this standard. When this standard is published, the versions shown are effective, and all the standards mentioned above will be revised. All parties using this standard should explore the possibility of using the latest versions of the following standards. GB17421.1-1998 General Rules for Machine Tool Inspection Part 1: General Requirements for Machine Tool Geometric Screening under No-load or Load Conditions
3.! When using this standard, refer to the relevant provisions of GB/T17421.1, especially the actual installation before inspection, the temperature rise of the spindle and other parts, the inspection method and the accuracy of the inspection tools. 3.2 Adjust the installation level according to the provisions of 3.1 in GB/T17422.t-1998, and the longitudinal and transverse readings should not exceed 0.04/1000
3.3 Before inspection, the actual inspection sequence can be arranged according to the requirements of the installation and disassembly tools and the inspection convenience and inspection items. 3.4 When the measured length is different from the length specified in this standard, the tolerance shall be converted according to the length that can be measured according to the provisions of GB/T17421.1-1998112.3.1. 3.51 When doing precision inspection, the test piece should be inspected after precision. 3.6 According to the agreement between the manufacturer and the manufacturer, the inspection items can be increased or decreased. 3. If static bearings or dynamic and static pressure bearings are used, the pressure oil must be turned on during the inspection. National Machinery Industry Kitchen 1999-05-20 approved 2000-01-01 implementation
JH/T 9904.2 -1999
JB9904.2-1995
2t'ssa21'ss
ItztrswwW.bzxz.Net
8661-11
JB/T 9904.2 - 1999
t2295 1279's 121z9s 12219s1
900 0S000t000
JB/T9904.2-1999
etets tItI'rs
EzI9's
910 02100800'0
21000[00800'0
800'0900'0500'0
JEL9904.2-1999
E'N'E'Z'S
ettt's+tt's
listed
3B/T 990 4.2-1999
No.21009
t1't9 12'11'9
12I'ss
JB/T 9904.21999
(：丽
"一科
+119 3z119
izhiIf iz itt
9100+1000100
900o.5000b000
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.