JB/T 2999.2-2014Cam Shaft Grinding Machines - Part 2: Testing of the Accuracy (English PDF)
凸轮轴磨床 第2部分：精度检验
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
July 9, 2014
Implementation date
November 1, 2014
Scope
JB/T 2999.2-2014 is the English-translated version of 凸轮轴磨床 第2部分：精度检验.
Testing of accuracy is what JB/T 2999.2-2014 covers for camshaft grinding machines of general accuracy grade, within the Chinese recommended machinery industry standards.
The document fixes the geometric accuracy and the working accuracy required of the machine and sets out the method for testing each one. It is addressed to machines with a maximum workpiece swing diameter of 125 mm to 320 mm and a maximum workpiece length of 300 mm to 2000 mm.
The machine-tool test practice it follows comes from GB/T 17421.1-1998, GB/T 17421.2-2000 and GB/T 19660-2005. It supersedes JB/T 2999.2-1998. Issued on 9 July 2014, it has applied since 1 November 2014.
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Document preview — JB/T 2999.2-2014
National Standard of the People's Republic of China
- ICS
- 25.080.50
- Replacing
- JB/T 2999.2-1998
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Related standards
- Classification and status
1 Foreword
JB/T 2999.2-2014 was issued by MIIT on 9 July 2014 and has been in force since 1 November 2014.
It replaces the earlier edition JB/T 2999.2-1998.
It is one of 5 parts of the JB/T 2999 series.
2 Scope
Testing of accuracy is what JB/T 2999.2-2014 covers for camshaft grinding machines of general accuracy grade, within the Chinese recommended machinery industry standards. The document fixes the geometric accuracy and the working accuracy required of the machine and sets out the method for testing each one. It is addressed to machines with a maximum workpiece swing diameter of 125 mm to 320 mm and a maximum workpiece length of 300 mm to 2000 mm. The machine-tool test practice it follows comes from GB/T 17421.1-1998, GB/T 17421.2-2000 and GB/T 19660-2005. It supersedes JB/T 2999.2-1998.
3 Normative references
JB/T 2999.2-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 17421.1-1998
GB/T 17421.2-2000
GB/T 19660-2005 — Industrial automation systems and integration -- Numerical control of machines -- Coordinate system and motion nomenclature
4 About this standard
Issued by: MIIT
English translation: about 18 pages
5 Related standards
Other parts of this standard:
JB/T 2999.1-1998 — Camshaft grinding machines - Parameters
JB/T 2999.1-2014 — Part 1: Types and Parameters
JB/T 2999.3-1998 — Camshaft grinding machines - Technical specifications
JB/T 2999.3-2014 — Numerical Control Cam Shaft Grinding Machines - Part 3: Specifications
Other editions:
JB/T 2999.2-1998 (earlier edition)
6 Classification and status
International classification (ICS): 25.080.50
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.
Referenced standards
Normative references
- 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 17421.2-2000Test code for machine tools - Part 2: Determination of accuracy and repeatability of positioning of numerically controlled axes
- GB/T 19660-2005Industrial automation systems and integration -- Numerical control of machines -- Coordinate system and motion nomenclature
Similar standards
Editions of JB/T 2999.2
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 2999.2-2014 | Cam Shaft Grinding Machines - Part 2: Testing of the Accuracy | current edition | Current |
| JB/T 2999.2-1998 | Cam Shaft Grinding Machines - Part 2: Testing of the Accuracy | previous edition | Superseded |
This page sells the current edition, JB/T 2999.2-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 19660-2005 — Industrial automation systems and integration -- Numerical control of machines -- Coordinate system and motion nomenclature
JB/T 2999.3-2014 — Numerical Control Cam Shaft Grinding Machines - Part 3: Specifications
JB/T 2999.1-1998 — Camshaft grinding machines - Parameters
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JB/T 2999.2-2014
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