ISO 3875:2020 PDF

Scope: The document specifies, with reference to ISO 230-1 and ISO 230-2, geometric tests, machining tests and tests for accuracy and repeatability of positioning axes on general purpose and normal accuracy manually and numerically controlled (NC) external cylindrical centreless grinding machines. It also specifies the applicable tolerances corresponding to the above-mentioned tests. This document deals only with the verification of accuracy of the machine. It does not apply to the testing of the machine operation (vibrations, abnormal noise, stick-slip motion of components, etc.) nor to machine characteristics (such as speeds, feeds, etc.), which are generally checked before testing of machine accuracy. This document provides the terminology used for the principal components of the machine and the designation of the axes with reference to ISO 841. NOTE In addition to the terms used in the official ISO languages (English and French), this document gives the equivalent terms in the German, Italian, Japanese, and Persian languages. These are published under the responsibility of the national member bodies for Germany (DIN), Italy (UNI), Japan (JIS), and Iran (ISIRI). However, only the terms given in the official languages can be considered as ISO terms.

ISO 3875:2020 Referenced Document

ISO 230-1:2012 Test code for machine tools - Part 1: Geometric accuracy of machines operating under no-load or quasi-static conditions
ISO 230-2:2014 Test code for machine tools - Part 2: Determination of accuracy and repeatability of positioning of numerically controlled axes

2020 ISO 3875:2020 Machine tools — Test conditions for external cylindrical centreless grinding machines — Testing of the accuracy
2004 ISO 3875:2004 Machine tools - Test conditions for external cylindrical centreless grinding machines - Testing of the accuracy
1990 ISO 3875:1990 Acceptance conditions for external cylindrical centreless grinding machines; testing of the accuracy
1980 ISO 3875:1980 Conditions of acceptance for external cylindrical centreless grinding machines — Testing of the accuracy