BS ISO 8636-2:2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and description of travelling bridge
   (gantry-type) milling machines
   4.1 Classification
   4.2 Descriptions of principal components
5 Terminology and designation of axes
   5.1 Terminology
   5.2 Designation of axes
6 Preliminary remarks
   6.1 Measuring units
   6.2 Reference to ISO 230-1
   6.3 Temperature conditions
   6.4 Testing sequence
   6.5 Tests to be performed
   6.6 Measuring instruments
   6.7 Minimum tolerance
   6.8 Machining tests
   6.9 Positioning tests
7 Geometric tests
   7.1 Axes of motion
   7.2 Table
   7.3 Milling head
   7.4 Swivelling milling head
   7.5 Horizontal milling head (side milling head)
8 Machining tests
   8.1 Flatness of test pieces by slab milling
   8.2 Milling of lateral face
9 Accuracy and repeatability of positioning of numerical
   control axes
   9.1 Linear axes
   9.2 Rotary axes
10 Geometric accuracy of axes of rotation of toolholding
   spindles
Bibliography

Describes geometric tests, machining tests, and tests for checking accuracy and repeatability of positioning of numerically controlled axes for general-purpose normal accuracy bridge-type milling machines with a travelling bridge (gantry-type).

This part of ISO8636 specifies, with reference to ISO230-1, ISO230-2, and ISO230-7, geometric tests, machining tests, and tests for checking accuracy and repeatability of positioning of numerically controlled axes for general-purpose normal accuracy bridge-type milling machines with a travelling bridge (gantry-type). This part of ISO8636 also specifies the applicable tolerances corresponding to the above-mentioned tests.

This part of ISO8636 is applicable to machines with travelling bridge and fixed table. It does not include single-column (open sided) machines and those with fixed bridge and moving tables.

This part of ISO8636 deals only with the verification of the accuracy of the machine. It does not apply to the testing of the machine operation (vibration, abnormal noise, stick-slip motion of components, etc.) nor to machine characteristics (such as speeds, feeds, etc.), which should generally be checked before testing the accuracy.

This part of ISO8636 provides the terminology used for the principal components of the machines and the designation of the axes with reference to ISO841.