JB/T 7423.3-2011Tapping machines - Part 3: Vertical tapping machines - Testing of the accuracy (English PDF)
攻丝机 第3部分：立式攻丝机 精度检验
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 18, 2011
Implementation date
August 1, 2011
Scope
JB/T 7423.3-2011 is the English-translated version of 攻丝机 第3部分：立式攻丝机 精度检验.
Part 3 of the recommended Chinese machinery industry standard on tapping machines, JB/T 7423.3-2011, covers the accuracy testing of the vertical tapping machine.
It states the requirements for the geometric accuracy and the precision of such a machine and the test methods that go with them. The machines it applies to are general purpose vertical tapping machines of ordinary accuracy whose maximum tapping diameter is M30 or less.
The part was issued by the Ministry of Industry and Information Technology and is filed under Chinese classification J56 and international classification 25.080.99.
Among the standards it quotes are GB/T 197-2003, GB/T 1031-2009, GB/T 17421.1-1998 and GB/T 20330-2006.
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Document preview — JB/T 7423.3-2011
National Standard of the People's Republic of China
- ICS
- 25.080.99
- Replacing
- JB/T 8602-1997
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 1 Scope
- 2 Normative references
1 Foreword
JB/T 7423.3-2011 was issued by MIIT on 18 May 2011 and has been in force since 1 August 2011.
It is one of 6 parts of the JB/T 7423 series.
2 Scope
Part 3 of the recommended Chinese machinery industry standard on tapping machines, JB/T 7423.3-2011, covers the accuracy testing of the vertical tapping machine. It states the requirements for the geometric accuracy and the precision of such a machine and the test methods that go with them. The machines it applies to are general purpose vertical tapping machines of ordinary accuracy whose maximum tapping diameter is M30 or less. The part was issued by the Ministry of Industry and Information Technology and is filed under Chinese classification J56 and international classification 25.080.99. Among the standards it quotes are GB/T 197-2003, GB/T 1031-2009, GB/T 17421.1-1998 and GB/T 20330-2006.
3 Normative references
JB/T 7423.3-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 197-2003
GB/T 968-2007 — Manufacturing tolerances on the threaded of portion taps
GB/T 1031-2009 — Geometrical product specifications(GPS) - Surface texture: Profile method - Surface roughness parameters and their values
GB/T 17421.1-1998
GB/T 20330-2006 — Drill diameter for use prior to tapping screw threads
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other parts of this standard:
JB/T 7423.1-1994 — Tapping machines - Parameters
JB/T 7423.1-2008 — Tapping machine - Part 1: Types and parameters
JB/T 7423.2-1994 — Tapping machines - Series spectrum
JB/T 7423.2-2011 — Tapping machine - Part 2: Bench tapping machine testing of the accuracy
JB/T 7423.5-2006 — Tapping machines - Part 5: Technical requirements
6 Classification and status
International classification (ICS): 25.080.99
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 197-2003General purpose metric screw threads -- Tolerances
- GB/T 968-2007Manufacturing tolerances on the threaded of portion taps
- GB/T 1031-2009Geometrical product specifications(GPS) - Surface texture: Profile method - Surface roughness parameters and their values
- GB/T 17421.1-1998Test code for machine tools - Part 1: Geometric accuracy of machines operating under no-load or quasi-static conditions
- GB/T 20330-2006Drill diameter for use prior to tapping screw threads
Similar standards
Editions of JB/T 7423.3
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 7423.3-2011 | Tapping machines - Part 3: Vertical tapping machines - Testing of the accuracy | current edition | Current |
| JB/T 8602-1997 | Tapping machines - Part 3: Vertical tapping machines - Testing of the accuracy | previous edition | Superseded |
This page sells the current edition, JB/T 7423.3-2011. Earlier editions are listed for reference only.
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Related Standards
GB/T 1031-2009 — Geometrical product specifications(GPS) - Surface texture: Profile method - Surface roughness parameters and their values
GB/T 20330-2006 — Drill diameter for use prior to tapping screw threads
GB/T 968-2007 — Manufacturing tolerances on the threaded of portion taps
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