Calibrating 3-D touch probes (option 17) 14.8
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HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
523
Calibrating the effective radius and compensating
center misalignment
HEIDENHAIN only gives warranty for the function of
the probing cycles if HEIDENHAIN touch probes are
used.
The center offset can be determined only with a
suitable touch probe.
If you want to calibrate using the outside of an
object, you need to preposition the touch probe
above the center of the calibration sphere or
calibration pin. Ensure that the touch points can be
approached without collision.
When calibrating the ball tip radius, the TNC executes an automatic
probing routine. During the first cycle, the TNC determines
the center of the calibration ring or stud (rough measurement)
and positions the touch probe in the center. Then the ball tip
radius is determined during the actual calibration process (fine
measurement). If the touch probe allows probing from opposite
orientations, the center offset is determined during another cycle.
The characteristic of whether and how your touch probe can be
oriented is predefined in HEIDENHAIN touch probes. Other touch
probes are configured by the machine manufacturer.
After the touch probe is inserted, it normally needs to be aligned
exactly with the spindle axis. The calibration function can
determine the offset between touch probe axis and spindle axis
by probing from opposite orientations (rotation by 180°) and can
calculate and implement the necessary compensation.
The calibration routine varies depending on how your touch probe
can be oriented:
No orientation possible or orientation possible in only
one direction: The TNC executes one rough and one fine
measurement and determines the effective ball tip radius
(column R in tool.t)
Orientation possible in two directions (e.g.HEIDENHAIN
wired touch probes): The TNC executes one rough and one
fine measurement, rotates the touch probe by 180° and
then completes one more probing routine. The center offset
(CAL_OF in tchprobe.tp) is determined in addition to the radius
by probing from opposite orientations
Orientation possible in any direction (e.g. HEIDENHAIN
infrared systems): The TNC executes one rough and one
fine measurement, rotates the touch probe by 180° and
then completes one more probing routine. The center offset
(CAL_OF in tchprobe.tp) is determined in addition to the radius
by probing from opposite orientations
Summary of Contents for TNC 620 Programming Station
Page 4: ......
Page 5: ...Fundamentals ...
Page 28: ...Contents 28 HEIDENHAIN TNC 620 ISO Programming User s Manual 9 2016 ...
Page 57: ...1 First Steps with the TNC 620 ...
Page 77: ...2 Introduction ...
Page 110: ......
Page 111: ...3 Fundamentals file management ...
Page 166: ......
Page 167: ...4 Programming aids ...
Page 194: ......
Page 195: ...5 Tools ...
Page 234: ......
Page 235: ...6 Programming contours ...
Page 284: ......
Page 285: ...7 Data transfer from CAD files ...
Page 304: ......
Page 305: ...8 Subprograms and program section repeats ...
Page 323: ...9 Programming Q parameters ...
Page 384: ......
Page 385: ...10 Miscellaneous functions ...
Page 407: ...11 Special functions ...
Page 433: ...12 Multiple axis machining ...
Page 475: ...13 Pallet management ...
Page 480: ......
Page 481: ...14 Manual Operation and Setup ...
Page 549: ...15 Positioning with Manual Data Input ...
Page 554: ......
Page 555: ...16 Test Run and Program Run ...
Page 590: ......
Page 591: ...17 MOD Functions ...
Page 622: ......
Page 623: ...18 Tables and Overviews ...