13. Program Support Functions
13.24 Tool Center Point Control; G43.4/G43.5
485
(1) Passing singular point type1
Select the same direction as the start point of the tool base-side rotary axis or table
workpiece-side rotary axis in the block where a singular point passing is carried out. When the
rotation angle of the start point is 0°, select the wider stroke limit. When the stroke limits are the
same, select the one with a minus-coded rotation angle.
<Tool tilt type>
X(-)
C axis rotates 180
°
Y(-)
Z(-)
Singular point
When passing the neighborhood of the
singular point, C axis rotates 180
°
within
the parameter "#7907 CHK_ANG"
(Judging angle for the singular point
neighborhood.).
Fig. (a)
<Table tilt type>
C axis rotates 180
°
Z(+)
Z'(+)
Y(+)
Y'(-)
Singular point
When passing the
neighborhood of the singular
point, C axis rotates 180
°
within the parameter "#7907
CHK_ANG" (Judging angle
for the singular point
neighborhood.).
Z"(+)
Y"(-)
Fig. (b)
<Combined type>
Z(+)
C axis rotates 180
°
Y(-)
Y(+)
Singular point
When passing the
neighborhood of the singular
point, C axis rotates 180
°
within the parameter "#7907
CHK_ANG" (Judging angle
for the singular point
neighborhood.).
Z(+)
Z(+)
Y(-)
Fig. (c)