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JB/T 9926.1-2019Internal thread grinding machines - Part 1: Testing of the accuracy (English PDF)

内螺纹磨床 第1部分:精度检验

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

May 2, 2019

Implementation date

January 1, 2020

Scope

JB/T 9926.1-2019 is the English-translated version of 内螺纹磨床 第1部分:精度检验.

The first part of JB/T 9926, published as JB/T 9926.1-2019, is the Chinese machinery industry standard covering accuracy checks on internal thread grinding machines.

It lays down the inspection methods and the corresponding tolerances for geometric accuracy, working accuracy, axis positioning accuracy and repeatability of positioning on machines of ordinary accuracy grade.

Its scope is internal thread grinders whose maximum grinding diameter runs from 200 mm to 400 mm. It quotes GB/T 17421.1-1998, GB/T 17421.2-2016, GB/T 17587.3-2017, GB/T 19660-2005 and JB/T 2886-2008.

It carries the Chinese classification J56 and the international classification 25.080.99, and it replaces JB/T 9926.1-1999.

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Document preview — JB/T 9926.1-2019

National Standard of the People's Republic of China

ICS
25.080.99
Replacing
JB/T 9926.1-1999

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 9926.1-2019 was issued by MIIT on 2 May 2019.

It is one of 3 parts of the JB/T 9926 series.

2 Scope

The first part of JB/T 9926, published as JB/T 9926.1-2019, is the Chinese machinery industry standard covering accuracy checks on internal thread grinding machines. It lays down the inspection methods and the corresponding tolerances for geometric accuracy, working accuracy, axis positioning accuracy and repeatability of positioning on machines of ordinary accuracy grade. Its scope is internal thread grinders whose maximum grinding diameter runs from 200 mm to 400 mm. It quotes GB/T 17421.1-1998, GB/T 17421.2-2016, GB/T 17587.3-2017, GB/T 19660-2005 and JB/T 2886-2008. It carries the Chinese classification J56 and the international classification 25.080.99, and it replaces JB/T 9926.1-1999.

3 Normative references

JB/T 9926.1-2019 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 17421.2-2016

GB/T 17587.3-2017 — Ball screws -- Part 3: Acceptance conditions and acceptance tests

GB/T 19660-2005 — Industrial automation systems and integration -- Numerical control of machines -- Coordinate system and motion nomenclature

JB/T 2886-2008 — Trapezoidal lead screws and nuts for machine tools - Technical requirements

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Related standards

Other parts of this standard:

JB/T 9926.2-1999 — Technical specifications

JB/T 9926.2-2014 — Internal Thread Grinding Machines - Part 2: Specifications

6 Classification and status

International classification (ICS): 25.080.99

Prefix JB/T: recommended standard.

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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 9926.1

EditionTitleRevisionStatus
JB/T 9926.1-2019Internal thread grinding machines - Part 1: Testing of the accuracycurrent editionCurrent
JB/T 9926.1-1999Internal thread grinding machines - Part 1: Testing of the accuracyprevious editionSuperseded

This page sells the current edition, JB/T 9926.1-2019. Earlier editions are listed for reference only.

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