JB/T 9900.1-1999 This standard is a revision of ZB J52 004-88 "Accuracy of boring heads of horizontal fine boring machines". During the revision, only editorial changes were made and the main technical contents remained unchanged. This standard is part of the JB/T 9900 series of standards, which includes the following two parts: JB/T 9900.1-1999 Horizontal fine boring machine boring head accuracy inspection JB/T 9900.2-1999 Horizontal fine boring machine boring head technical conditions The standards supporting this series of standards are: JB/T 5564-1991 Horizontal fine boring machine accuracy JB/T 5601-1991 Horizontal fine boring machine series JB/T 5765-1991 Horizontal fine boring machine parameters This standard specifies the requirements and inspection methods for the geometric accuracy inspection and working accuracy inspection of the horizontal fine boring machine boring head. This standard is applicable to the horizontal fine boring machine boring head with a front bearing inner diameter of 40~120mm. This standard was first issued in April 1988. JB/T 9900.1-1999 Horizontal boring machine boring head accuracy test JB/T9900.1-1999 standard download decompression password: www.bzxz.net

IL'S 25.060.10
Machinery Industry Standard of the People's Republic of China
JB/T9900.1-9960.2—1999
Horizontal boring machine
1999-05-20 Issued
200-01-01 Implementation
State Bureau of Machinery Industry
JB/T9900.1—1999
This standard is revised on the basis of ZDJ52004BB Horizontal boring machine head precision". .The technical content of this standard is consistent with that of ZBJ5200488. It has been reorganized according to relevant current situation. This standard is part of the IB/T9900 "Type-specific End-of-Line" series of standards. This series of standards includes the following two parts: JDT9900.1-1999 Type-specific End-of-Line Inspection Standard JB/T9900.2-1999, and the technical conditions for the end-of-line installation of horizontal adhesive tape ends are the same as those in this standard:
JH/5564-1991 Horizontal Accuracy of horizontal precision machine tools
IB/T56011991 Horizontal precision machine tool series 3651991 Horizontal precision locking machine tool series
This standard replaces the L standard of 7.R152001—8%. The standard was proposed by the National Metal Cutting Machine Tool Standardization Technical Committee. This standard was assigned to the National Metal Cutting Machine Tool Standardization Technical Committee by the World Bank branch. The responsible drafting unit is Kunming Ruimo Factory. This standard was first issued in April 1988.
1 Scope
Machinery Industry Standard of the People's Republic of China
Horizontal boring machine boring head precision test
JH/T:9900.1-1009
This standard specifies the requirements and test methods for the geometric test and precision test of horizontal boring heads. This standard is applicable to external boring heads with an internal size of 40~120mm. 2 Reference standards
The following standards are The provisions contained in this standard are the provisions that constitute the technical standard through reference in this standard. When the standard is published, the relevant provisions shown are valid. All standards are subject to change and revision. The parties using this standard should discuss the possibility of using the latest version of the following standards. G/T17421.1-1998 General rules for machine tool inspection Part 1: General requirements for machine tools under conditions without negative or fine processing 3.1 When using this standard, the relevant provisions of (GB/T17421.1) should be referred to, especially the system of idling temperature rise of the spindle and other components before inspection, the system of inspection tools: 3.2 Before inspection, the actual inspection should be arranged according to the requirements of the installation and disassembly tools and the convenience of inspection, and the requirements of the heat inspection items. 3.3 When the actual measured length is different from the length specified in this standard, the difference should be converted according to the measurable length according to the provisions of GB/T17421.1-1998 2.3.1.1. When the conversion result is less than 0.001mm , still 0.00! mm. 3.4 During the inspection, the test piece should be inspected after boring. 3.5 According to the agreement between the user and the manufacturer, the inspection items can be increased or decreased. Guohao Machinery Industry Bureau 15-05-20 approved
2000-01-01 implementation
JB/T9900.1-1999
IR.T900.11999
021-08
JB/T 9900,1 1999 bzxZ.net
+tl'f's
JB/T9900.1—1999
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