JB/T 2254.1-2011Jig boring machines - Part 1: Testing of the accuracy (English PDF)
坐标镗床 第1部分：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 2254.1-2011 is the English-translated version of 坐标镗床 第1部分：精度检验.
JB/T 2254.1-2011 is a recommended Chinese machinery industry standard, the accuracy part of JB/T 2254 on jig boring machines. It names the inspection items for geometric accuracy, for positioning accuracy and for working accuracy, and gives the methods and the tolerances that go with them.
The machines within its scope are single-column and double-column jig boring machines of the M and P accuracy classes whose table width does not exceed 2000 mm.
For classification the document carries J54 in the Chinese scheme and 25.080.20 in the international scheme. It quotes GB/T 17421.1-1998. The earlier edition it supersedes is JB/T 2254-1985.
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Document preview — JB/T 2254.1-2011
National Standard of the People's Republic of China
- ICS
- 25.080.20
- Replacing
- JB/T 2254-1985
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- [Preview only]
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Electroplated Inner Cutting Disc
- 3.2 Electroplated Needle File
- 3.3 Electroplated Grinding Head
- 4 Technical requirements
- 4.1 General requirements
- 4.2 Performance
- 4.3 Safety and protection
- 4.4 Castings, forgings and weldments
- 4.5 Machining
- 4.6 No-load operation requirements
- 4.7 Load operation requirements
- 4.8 Motion accuracy
- 5 Test methods
- 5.1 Appearance
- 5.2 Protection requirements
- 5.3 Machining and assembly quality of components
- 5.4 Appearance quality
- 5.5 Installation requirements for fire extinguishers
- 5.6 Functional test requirements
- 5.7 Anti-interference capability and functional stability test requirements
- 5.8 Mass per unit area
- 5.9 Tensile breaking force
- 6 Inspection rules
- 6.1 Factory inspection
- 6.2 Type inspection
- 6.3 Joint surfaces
- 6.4 Numerical control system
- 6.5 Working fluid system
- 6.6 Lubrication system
- 6.7 Machine running test
- 6.8 Accuracy inspection
- 6.9 Others
- 7 Marking, packaging, transportation and storage
- 7.2 Machining and assembly of components
- 7.9 Load operation test
- 8.1 General
- 8.2 Inspection principles
- 8.3 Inspection items
- 8.4 Conformity judgment
- 8.5 Storage
- 9.1 Marking
- 9.2 Packaging
- 9.3 Transportation
1 Foreword
JB/T 2254.1-2011 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 18 May 2011 and has been in force since 1 August 2011.
It is one of 5 parts of the JB/T 2254 series.
The JB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
2 Scope Preview
This standard is a recommended Chinese machinery industry standard, the accuracy part of JB/T 2254 on jig boring machines. It names the inspection items for geometric accuracy, for positioning accuracy and for working accuracy, and gives the methods and the tolerances that go with them. The machines within its scope are single-column and double-column jig boring machines of the M and P accuracy classes whose table width does not exceed 2000 mm. For classification the document carries J54 in the Chinese scheme and 25.080.20 in the international scheme. It quotes GB/T 17421.1-1998. The earlier edition it supersedes is JB/T 2254-1985.
JB/T 2254.1-2011 falls under ICS 25.080.20, in the field of manufacturing engineering.
This catalogue holds 1,459 other JB/T standards in that field.
In this catalogue, JB/T standards carry edition years from 1967 to 2026.
3 Normative references
GB/T 17421.1-1998 — Test code for machine tools. Part 1: Geometric accuracy of machines operating under no-load or finishing conditions
4 Where this standard sits
It cites one other standard, GB/T 17421.1-1998, listed in full above.
It is one part of the JB/T 2254 series, of which this catalogue holds 5 parts.
5 About this standard
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
English translation: about 15 pages
6 Related standards
Other parts of this standard:
JB/T 2254-1985 — Jig boring machines - Accuracy
JB/T 2254.2-2007 — Jig boring machines - Part 2: Technical requirements
JB/T 2254.3-2014 — Jig boring machines - Part 3: Dimension of main shaft end of 3:20 taper hole
JB/T 2254.4-2013 — Jig boring machines - Part 4: Types and parameters
Standards on related subjects:
JB/T 12396-2015 — Proportional valve solenoids
JB/T 8490-2008 — Floor-type boring machines and floor-type milling and boring machines - Technical requirements
JB/T 6105-2007 — Hydraulic power units for NC machine tools - Technical requirements
JB/T 6335-2025 — Radial drilling machines - Specification
JB/T 2255.1-2015 — Rotary tables for jig boring machines - Part 1: Testing of the accuracy
JB/T 2255.2-2013 — Turntables for jig boring machines - Part 2: Technical requirements
7 Classification and status
International classification (ICS): 25.080.20
Chinese Standard Classification (CCS): J 54
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
Similar standards
Editions of JB/T 2254.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 2254.1-2011 | Jig boring machines - Part 1: Testing of the accuracy | current edition | Current |
| JB/T 2254-1985 | Jig boring machines - Part 1: Testing of the accuracy | previous edition | Superseded |
This page sells the current edition, JB/T 2254.1-2011. Earlier editions are listed for reference only.
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Related Standards
GB/T 17421.1-1998 — Test code for machine tools. Part 1: Geometric accuracy of machines operating under no-load or finishing conditions
JB/T 2254.2-2007 — Jig boring machines - Part 2: Technical requirements
JB/T 2254.3-2014 — Jig boring machines - Part 3: Dimension of main shaft end of 3:20 taper hole
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JB/T 2254.1-2011
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