HEIDENHAIN TNC 620 User Manual page 210

5
Automatic probing routine for holes, studs, and circular patterns
Danger of collision!
The control does not perform an automatic collision check with
the stylus. During automatic probing procedures the control
positions the touch probe to the probing positions automatically.
There is a risk of collision if pre-positioning was not correct or if
obstacles have been ignored.
Program a suitable pre-position
Use safety clearances to take obstacles into account
If you use a probing routine for automatic probing of a hole, stud, or
a circular pattern, the control opens a form with the required entry
fields.
Input fields in the Measure stud and Measure hole forms
Input field
Stud diameter? or Hole
diameter
Safety clearance?
Incr. clearance height?
Starting angle?
Number of touch
points?
Angular length?
210
NOTICE
Function
Diameter of probe contact (optional for
holes)
Distance to the probe contact in the
plane
Positioning of touch probe in spindle
axis direction (starting from the current
position)
Angle for the first probing operation (0°
= positive direction of principal axis, i.e.
in X+ for spindle axis Z). All other probe
angles result from the number of touch
points.
Number of probing operations (3 to 8)
Probing a full circle (360°) or a circle
segment (angular length<360°)
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022
Setup | Using a 3-D touch probe (option 17)