NF ISO 230-3
Test code for machine tools - Part 3 : determination of thermal effects
This document defines four tests: — an environmental temperature variation error (ETVE) test; — a test for thermal distortion caused by rotating spindles; — a test for thermal distortion caused by moving linear axes; — a test for thermal distortion caused by rotary motion of components. The tests for thermal distortion caused by moving linear axes (see Clause 7) are applicable to numerically controlled (NC) machines only and are designed to quantify the effects of thermal expansion and contraction as well as the angular deformation of structures. For practical reasons, the test methods described in Clause 7 apply to machines with linear axes up to 2 000 mm in length. If they are used for machines with axes longer than 2 000 mm, a representative length of 2 000 mm in the normal range of each axis is chosen for the tests. The tests correspond to the drift test procedure as described in ISO/TR 16015:2003, A.4.2, applied for machine tools with special consideration of thermal distortion of moving linear components and thermal distortion of moving rotary components. On machine tools equipped with compensation for thermal effects these tests demonstrate any uncertainty in nominal thermal expansion due to uncertainty of coefficient of thermal expansion and any uncertainty of length due to temperature measurement.
This document defines four tests:
— an environmental temperature variation error (ETVE) test;
— a test for thermal distortion caused by rotating spindles;
— a test for thermal distortion caused by moving linear axes;
— a test for thermal distortion caused by rotary motion of components.
The tests for thermal distortion caused by moving linear axes (see Clause 7) are applicable to numerically controlled (NC) machines only and are designed to quantify the effects of thermal expansion and contraction as well as the angular deformation of structures. For practical reasons, the test methods described in Clause 7 apply to machines with linear axes up to 2 000 mm in length. If they are used for machines with axes longer than 2 000 mm, a representative length of 2 000 mm in the normal range of each axis is chosen for the tests.
The tests correspond to the drift test procedure as described in ISO/TR 16015:2003, A.4.2, applied for machine tools with special consideration of thermal distortion of moving linear components and thermal distortion of moving rotary components. On machine tools equipped with compensation for thermal effects these tests demonstrate any uncertainty in nominal thermal expansion due to uncertainty of coefficient of thermal expansion and any uncertainty of length due to temperature measurement.
<p>ISO 230-3:2007 defines three tests for the determination of thermal effects on machine tools: an environmental temperature variation error (ETVE) test, a test for thermal distortion caused by rotating spindles, and a test for thermal distortion caused by moving linear axes.</p> <p>The test for thermal distortion caused by moving linear axes is applicable to numerically controlled (NC) machines only and is designed to quantify the effects of thermal expansion and contraction as well as the rotational deformation of structure. For practical reasons, it is applicable to machines with linear axes up to 2 000 mm in length. If used for machines with axes longer than 2 000 mm, it will be necessary to choose a representative length of 2 000 mm in the normal range of each axis for the tests.</p> <p>The tests correspond to drift tests according to ISO/TR 16015 and define the evaluation and the detailed procedure for machine tools.</p>
- Avant-propos
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Remarques préliminaires
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5 Essai d'erreur de variation de température ambiante (ETVE)
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6 Déformation thermique due à une broche en rotation
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7 Déformation thermique due aux déplacements linéaires des composants
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8 Déformation thermique due au mouvement rotatif des composants
- Annexe A (informative) Informations sur les capteurs de déplacement linéaire
- Annexe B (informative) Lignes directrices sur le nombre nécessaire de capteurs de déplacement linéaire
- Annexe C (informative) Lignes directrices sur l'environnement thermique des machines-outils
- Annexe D (informative) Autres dispositifs et installations de mesure
- Bibliographie
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