Siemens SINUMERIK 840D sl Function Manual page 97

Tool carriers with orientation capability
Example: Cardan toolholder with two axes for the tool orientation
Figure 2-29
Processing toolholder data blocks
Two options are available:
● Explicit entry in the toolholder data block from the part program
● Automatic acceptance of certain values (angles) from a frame
A requirement for this is that TCOFR (Tool Carrier Orientation FRame) is also specified when
the toolholder is selected.
The tool orientation used to calculate the tool length is determined again from the frame
active at this time when a toolholder is changed.
Orientation in Z direction
The G command TOFRAME defines a frame such that the Z direction in this frame is the same
as the current tool orientation.
Tools
Function Manual, 06/2019, A5E47435126B AA
Cardan toolholder with two axes
2.8 Tool carriers with orientation capability
W1: Tool offset
97