HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 380)

380 Touch Probe Cycles: Automatic Measurement of Workpiece Misalignment
15.2 BA
SIC R
O
T
A
TION (Cy
c
le 40
0, DIN/ISO: G40
0
)
15.2 BASIC ROTATION (Cycle 400,
DIN/ISO: G400)
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" on page 373) to the programmed starting point 1 .
The TNC offsets the touch probe by the safety clearance in the
direction opposite the defined traverse direction.
2 Then the touch probe moves to the entered measuring height and
probes the first touch point 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:
X
Y
1
2
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.