HEIDENHAIN iTNC 530 HSCI - Page 758

758 HEIDENHAIN Technical Manual iTNC 530 HSCI
Then the C axis is measured and its angular position is optimized. The position
errors A0C and B0C can be corrected in lines 12 and 13 through the
compensations in the COMPTAB column. An inverse transformation of both
angular errors is possible in lines 9 and 10. As a result, further changes to other
axes (also A) can be ruled out.
Example of B head (45°) and C table:
During measurements in mode 2, the angular errors A0B and C0B in lines 6
and 7 of the COMPTAB column are compensated. Inverse transformation of
the two angular errors A0B and C0B is not possible, because no corresponding
rotations are defined. This means that the tool coordinate system is rotated
from the ideal system. After the angular position has been adjusted, a
measurement is performed, in which the position of the rotary axis (X0B and
Z0B) is determined. The position is corrected in lines 2 and 3.
Then the C axis is measured and its angular position is optimized. The position
errors A0C and B0C can be corrected in lines 16 and 17 through the
compensations in the COMPTAB column. An inverse transformation is not
defined, and therefore the workpiece coordinate system is rotated from the
ideal system.
For a detailed description of Cycle 451 MEASURE KINEMATICS, refer to the
Touch Probe Cycles User's Manual.
NR DOC KEX AXIS COORD COMPTAB
0 ToolFile
1 ToolAxis Z
2 X0B Trans X +50.013
3 Z0B Trans Z +300.815
4 Trans A +45
5 MachAxis B
6 A0B Trans A -0.0027
7 C0B Trans C +0.0009
8 Trans A -45
9 MachAxis Z
10 MachAxis X
11 MachBase Ideal
coordinate
system
12 MachAxis Y
13 X0C Trans X +349.217
14 Y0C Trans Y -451.012
15 Table
surface
Trans Z -650.514
16 AOC Trans A -0.0005
17 BOC Trans B -0.0011
18 MachAxis C