HEIDENHAIN TNC 620 (34056x-04) Cycle programming - Manual (Page 286)

Touch Probe Cycles: Automatic Measurement of Workpiece
Misalignment
14.2 BASIC ROTATION (Cycle 400, DIN/ISO: G400, software option 17)
14
286
TNC 620 | User's Manual Cycle Programming | 5/2013
14.2 BASIC ROTATION (Cycle 400, DIN/
ISO: G400, software option 17)
Cycle run
Touch probe cycle 400 determines a workpiece misalignment by
measuring two points, which must lie on a straight surface. With
the basic rotation function the TNC compensates the measured
value.
1 The TNC positions the touch probe at rapid traverse (value from
FMAX column) following the positioning logic (See "Executing
touch probe cycles", page 280) to the starting point
1 . The TNC
offsets the touch probe by the safety clearance in the direction
opposite to the defined traverse direction.
2 Then the touch probe moves to the entered measuring height
and runs the first probing process at the probing feed rate
(column
F).
3 Then the touch probe moves to the next starting position 2 and
probes the second position.
4 The TNC returns the touch probe to the clearance height and
performs the basic rotation.
Please note while programming:
Before a cycle definition you must have programmed
a tool call to define the touch probe axis.
The TNC will reset an active basic rotation at the
beginning of the cycle.