NF ISO 230-4

NF ISO 230-4

April 2022
Standard Current

Test code for machine tools - Part 4 : circular tests for numerically controlled machine tools

This document provides methods for the determination of the contouring performance of numerically controlled machine tools. This document specifies methods of testing and evaluating the bi-directional circular error, the mean bi-directional radial error, the circular error and the radial error of circular paths that are produced by the simultaneous movements of two linear axes. This document also specifies methods of testing the deviations of the circular or constant radius trajectories generated by any combination of simultaneously controlled (coordinated) linear and rotary axes. The basic principle of these tests is to coordinate the multiple axes of motion (combination of rotary and linear axes) to keep the relative position between the tool and the workpiece constant. This document describes differences between circular errors and radial errors (Annex A), influences of typical machine errors on circular paths executed with two linear axes (Annex B), precautions for test set-ups for circular tests with rotary axes (Annex C), an example of adjustment of diameter and contouring speed for circular tests (Annex D), and circular tests using feedback signal (Annex E).

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Main informations

Collections

National standards and national normative documents

Publication date

April 2022

Number of pages

30 p.

Reference

NF ISO 230-4

ICS Codes

25.040.20   Numerically controlled machines

Classification index

E60-100-4

Print number

1

International kinship

ISO 230-4:2022
Sumary
Test code for machine tools - Part 4 : circular tests for numerically controlled machine tools

This document provides methods for the determination of the contouring performance of numerically controlled machine tools.

This document specifies methods of testing and evaluating the bi-directional circular error, the mean bi-directional radial error, the circular error and the radial error of circular paths that are produced by the simultaneous movements of two linear axes.

This document also specifies methods of testing the deviations of the circular or constant radius trajectories generated by any combination of simultaneously controlled (coordinated) linear and rotary axes. The basic principle of these tests is to coordinate the multiple axes of motion (combination of rotary and linear axes) to keep the relative position between the tool and the workpiece constant.

This document describes differences between circular errors and radial errors (Annex A), influences of typical machine errors on circular paths executed with two linear axes (Annex B), precautions for test set-ups for circular tests with rotary axes (Annex C), an example of adjustment of diameter and contouring speed for circular tests (Annex D), and circular tests using feedback signal (Annex E).

Replaced standards (1)
NF ISO 230-4
October 2005
Standard Cancelled
Test code for machine-tools - Part 4 : circular tests for numerically controlled machine tools

<p>ISO 230-4:2005 specifies methods of testing and evaluating the bi-directional circular deviation, the mean bi-directional radial deviation, the circular deviation and the radial deviation of circular paths that are produced by the simultaneous movements of two linear axes. Its objective is to provide a method for the measurement of the contouring performance of a numerically controlled machine tool.</p>

Table of contents
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  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Conditions d'essai
  • 5 Mode opératoire d'essai
  • 6 Présentation des résultats
  • 7 Éléments à convenir entre le fournisseur ou fabricant et l'utilisateur
  • Annexe A (informative) Différences entre les erreurs de circularité G et G (b) et les erreurs radiales F et D
  • Annexe B (informative) Influences des erreurs types de la machine sur les trajectoires circulaires réalisées sur deux axes linéaires
  • Annexe C (informative) Précautions à prendre lors des montages d'essais pour les essais de circularité avec des axes rotatifs
  • Annexe D (informative) Ajustement du diamètre et de la vitesse de suivi de contour pour des essais de circularités
  • Annexe E (informative) Essais de circularité utilisant le signal de retour
  • Bibliographie
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