
11.PROGRAM COMMAND B-63783EN-1/01
- 1252 -
- Feature coordinate system with the table rotated by G53.1 (tool axis direction
control)
Let's take a table rotation type machine shown in Fig.11.17(i) as an
example.
If the table rotates under tool axis direction control (G53.1), the feature
coordinate system (called the first feature coordinate system) that is set
in the workpiece coordinate system as directed with the feature
coordinate system set command (G68.2) rotates as much as the table
rotates.
Let the feature coordinate system that has rotated be the second feature
coordinate system.
Once G53.1 is issued, the subsequent cutting commands are assumed to
be issued in the second feature coordinate system. (See Fig.11.17(j).)
In the table rotation type machines, the specified feature coordinate
system (the first feature coordinate system may vary from the feature
coordinate system to be used in cutting the second feature coordinate
system.
G53.1 command
G01 X10.0 F1000
command after G53.1 is
issued.
Second feature coordinate system
Xc’-Yc’-Zc’
Yc’
Xc’
X
Y
Z
Zc’
Yc’
Xc’
X
Y
Z
Zc’
Second feature coordinate system
Xc’-Yc’-Zc’
Fig.11.17 (j)