Approaching On A Circular Path With Tangential Connection: Appr Ct - HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING User Manual

Approaching on a circular path with tangential
connection: APPR CT
The tool moves on a straight line from the starting point P
auxiliary point P . It then moves to the first contour point P
H
a circular arc that is tangential to the first contour element.
The arc from P to P is determined through the radius R and the
H A
center angle CCA. The direction of rotation of the circular arc is
automatically derived from the tool path for the first contour element.
U
Use any path function to approach the starting point P
U
Initiate the dialog with the APPR/DEP key and APPR CT soft key:
U Coordinates of the first contour point P
U Radius R of the circular arc
If the tool should approach the workpiece in the
direction defined by the radius compensation: Enter
R as a positive value
If the tool should approach from the workpiece
side:
Enter R as a negative value
U
Center angle CCA of the arc
CCA can be entered only as a positive value
Maximum input value 360°
U Radius compensation RR/RL for machining
Example NC blocks
7 L X+10 Y+10 R0 FMAX M3
8 APPR CT X+10 Y+20 Z-10 CCA180 R+10 RR F100
9 L X+20 Y+35
10 L ...
HEIDENHAIN iTNC 530
to an
S
following
A
S
A
Approach P
P with radius comp. RR, radius R=10
A
End point of the first contour element
Next contour element
without radius compensation
S
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