HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 116)

104 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.4 Special Cy
cles
CALIBRATE TS (touch probe cycle 2)
Touch probe cycle 2 automatically calibrates a touch trigger probe
using a ring gauge or a precision stud as calibration standard.
1 The touch probe moves at rapid traverse (value from MP6150) to
the clearance height (but only if the current position is below the
clearance height).
2 Then the TNC positions the touch probe in the working plane to the
center of the ring gauge (calibration from inside) or in its proximity
(calibration from outside).
3 The touch probe then moves to the measuring depth (result of
machine parameters 618x.2 and 6185.x) and probes the ring gauge
successively in X+, Y+, X- and Y-.
4 Finally, the TNC moves the touch probe to the clearance height
and writes the effective radius of the ball tip to the calibration data.
U U U U Clearance height (absolute): coordinate in the touch
probe axis at which the touch probe cannot collide
with the calibration workpiece or any fixtures.
U U U U Radius of ring gauge : radius of the calibrating
workpiece.
U U U U Inside calib. =0/outs. calib.=1 : definition of
whether the TNC is to calibrate from inside or outside:
0: Calibrate from inside
1: Calibrate from outside
Before you begin calibrating, you must define in the
machine parameters 6180.0 to 6180.2 the center of the
calibrating workpiece in the working space of the machine
(REF coordinates).
If you are working with several traverse ranges you can
save a separate set of coordinates for the center of each
calibrating workpiece (MP6181.1 to 6181.2 and MP6182.1
to 6182.2).
Example: NC blocks
5 TCH PROBE 2.0 CALIBRATE TS
6 TCH PROBE 2.1 HEIGHT: +50 R+25.003
DIRECTION: 0