BS ISO 230-7:2015:2017 Edition
$215.11
Test code for machine tools – Geometric accuracy of axes of rotation
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 84 |
This part of ISO 230 is aimed at standardizing methods of specification and test of the geometric accuracy of axes of rotation used in machine tools. Spindle units, rotary heads, and rotary and swivelling tables of machine tools constitute axes of rotation, all having unintended motions in space as a result of multiple sources of errors.
This part of ISO 230 covers the following properties of rotary axes:
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axis of rotation error motion;
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speed-induced axis shifts.
The other important properties of rotary axes, such as thermally induced axis shifts and environmental temperature variation-induced axis shifts, are dealt with in ISO 230-3.
This part of ISO 230 does not cover the following properties of spindles:
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angular positioning accuracy (see ISO 230-1 and ISO 230-2);
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run-out of surfaces and components (see ISO 230-1);
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tool holder interface specifications;
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inertial vibration measurements (see ISO/TR 230-8);
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noise measurements (see ISO 230-5);
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rotational speed range and accuracy (see ISO 10791-6 and ISO 13041-6);
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balancing measurements or methods (see ISO 1940-1 and ISO 6103);
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idle run loss (power loss);
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thermal effects (see ISO 230-3).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions 3.1 General concepts |
| 14 | 3.2 Error motion terms |
| 16 | 3.3 Consequences of axis of rotation error motion |
| 18 | 3.4 Directional decomposition of axis of rotation error motion |
| 19 | 3.5 Decomposition of measured axis of rotation error motion based on rotational frequency |
| 20 | 3.6 Terms for axis of rotation error motion polar plots |
| 22 | 3.7 Terms for axis of rotation error motion polar plot centres |
| 23 | 3.8 Terms for axis of rotation error motion values |
| 25 | 3.9 Terms for structural error motion 3.10 Terms for axis shift |
| 26 | 4 Preliminary remarks 4.1 Measuring units 4.2 Reference to ISO 230‑1 4.3 Recommended instrumentation and test equipment |
| 27 | 4.4 Environment 4.5 Rotary component to be tested 4.6 Rotary component warm-up 4.7 Structural error motion tests 4.7.1 General 4.7.2 Test procedure 4.7.3 Analysis of results |
| 28 | 5 Error motion test methods for machine tool spindle units 5.1 General 5.2 Test parameters and specifications 5.3 Spindle axis of rotation tests — Rotating sensitive direction(s) 5.3.1 General 5.3.2 Radial error motion |
| 31 | 5.3.3 Tilt error motion |
| 33 | 5.3.4 Axial error motion |
| 34 | 5.4 Spindle tests — Fixed sensitive direction 5.4.1 General 5.4.2 Test setup |
| 35 | 5.4.3 Radial error motion |
| 37 | 5.4.4 Axial error motion |
| 38 | 5.4.5 Tilt error motion |
| 39 | 6 Error motion test methods for machine tool rotary tables/heads 6.1 General 6.2 Axial error motion 6.2.1 Test setup |
| 40 | 6.2.2 Test procedure 6.2.3 Data analysis |
| 41 | 6.3 Radial error motion 6.3.1 Test setup 6.3.2 Test procedure 6.3.3 Data analysis for rotating sensitive direction |
| 42 | 6.3.4 Data analysis for fixed sensitive direction 6.4 Tilt error motion 6.4.1 Test setup 6.4.2 Test procedure 6.4.3 Data analysis for rotating sensitive direction |
| 43 | 6.4.4 Data analysis for fixed sensitive direction |
| 44 | Annex A (informative) Discussion of general concepts |
| 63 | Annex B (informative) Elimination of reference sphere roundness error |
| 67 | Annex C (informative) Terms and definitions for compliance properties of axis of rotation |
| 68 | Annex D (informative) Terms and definitions for thermally-induced errors associated with rotation of spindle and rotary tables/heads |
| 69 | Annex E (informative) Static error motion tests |
| 70 | Annex F (informative) Measurement uncertainty estimation for axis of rotation tests |
| 75 | Annex G (informative) Alphabetical cross-reference of terms and definitions |
| 77 | Annex H (informative) Linear displacement sensor bandwidth and rotational speed |
| 80 | Bibliography |
