BS ISO 230-7:2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Preliminary remarks
5 Error motion test methods for machine tool spindle units
6 Error motion test methods for machine tool rotary
  tables/heads
Annex A (informative) - Discussion of general concepts
Annex B (informative) - Elimination of reference sphere
        roundness error
Annex C (informative) - Terms and definitions for compliance
        properties of axis of rotation
Annex D (informative) - Terms and definitions for
        thermally-induced errors associated with rotation of
        spindle and rotary tables/heads
Annex E (informative) - Static error motion tests
Annex F (informative) - Measurement uncertainty estimation
        for axis of rotation tests
Annex G (informative) - Alphabetical cross-reference of
        terms and definitions
Annex H (informative) - Linear displacement sensor bandwidth
        and rotational speed
Bibliography

Describes standardizing methods of specification and test of the geometric accuracy of axes of rotation used in machine tools.

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:

• axis of rotation error motion;

• 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:

• angular positioning accuracy (see ISO 230-1 and ISO 230-2);

• run-out of surfaces and components (see ISO 230-1);

• tool holder interface specifications;

• inertial vibration measurements (see ISO/TR 230-8);

• noise measurements (see ISO 230-5);

• rotational speed range and accuracy (see ISO 10791-6 and ISO 13041-6);

• balancing measurements or methods (see ISO 1940-1 and ISO 6103);

• idle run loss (power loss);

• thermal effects (see ISO 230-3).