ISO 6779:2019 縦型内部型ブローチ盤の試験条件—精度の試験 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, 2 (see www.iso.org/directives ).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents ).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

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www.iso.org/iso/foreword.html .

This document was prepared by Technical Committee ISO/TC 39, Machine Tools, Subcommittee SC 2, Test conditions for metal cutting machine tools.

This second edition cancels and replaces the first edition (ISO 6779:1981), which has been technically revised.

The main changes compared to the previous edition are as follows:

• the title has been changed;
• the document's format has been aligned with new published ISO/TC 39/SC 2 documents;
• “table-up” machines have been added as a new configuration for vertical internal type broaching machines;
• some terms have been changed and equivalent non-formal terms in more languages have been added to Annex A;
• all diagrams in this document have been regenerated;
• old references to ISO/R 230:1961 have been corrected to ISO 230-1:2012 and observations have been updated accordingly;
• levelling test, G01, has been deleted and relevant explanations have been added to Clause 5;
• as the term “coincidence” no longer exists in ISO 230-1:2012, the term “radial offset of coaxiality deviation” has been used for test item G4;
• Clause 7 has been created to provide considerations to machining tests to be agreed between manufacturer/supplier and user;
• imperial units of measurements have been deleted and only metric units are now used.

In addition to terms given in the official ISO languages (English and French), this document gives the equivalent terms in Italian and Persian. These are published under the responsibility of the member bodies for Iran (ISIRI) and Italy (UNI) and are given for information only. Only the terms given in the official languages can be considered as ISO terms.

Introduction

The object of this document is to supply information as wide and comprehensive as possible on tests on vertical internal type broaching machines which can be carried out for comparison, acceptance, maintenance or any other purposes.

This document also establishes the tolerances for the test results corresponding to general purpose and normal accuracy vertical internal type broaching machines.

1 Scope

This document specifies, with reference to ISO 230-1, the geometric tests on vertical internal type broaching machines with vertical Z-axis providing the main cutting motion.

It also specifies the applicable tolerances corresponding to the tests mentioned above for normal-accuracy vertical internal type broaching machines.

This document explains concepts or configurations and common features of vertical internal type broaching machines. It also provides related terminology and designation of axes.

This document deals only with the verification of the accuracy of the broaching machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components), nor to machine characteristics (e.g. speeds, feeds) as such checks are generally carried out before testing the accuracy.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 230-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography