Automatic Compensation Of Offset For Tilting Axes; Miscellaneous Function M114 - HEIDENHAIN iTNC 530 Technical Manual

6.5.6 Automatic Compensation of Offset for Tilting Axes

Miscellaneous
function M114
February 2002
Unlike the "tilted working plane," here the coordinate system is not tilted.
With M114 or M128, the iTNC compensates the offset of the tool that results
from tilting the axes. The tool tip is always located on the programmed
nominal- coordinates.
Z
The TNC can perform a 3-D length compensation; the radius compensation
must be performed by the CAD system or the postprocessor. If the iTNC
compensates the tool length, then the programmed feed rate refers to the tool
point. Otherwise it refers to the tool datum.
Automatic compensation with M114:
n
Linear and rotational movements are superimposed. The resulting contour
deviations depend on the length of the linear interpolation.
n
When the table is rotated, the coordinate system is rotated against the
machine coordinate system. The iTNC does not take this into account.
n
M114 can be used with non-controlled tilting axes or PLC tilting axes. In this
case, the current tilting angle and the tilting axis are entered in the NC block
behind M114.
Tilting Axes
B
B
dz
dx
dB
X
6 – 81