HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 495)

HEIDENHAIN TNC 640 495
1
7.13 MEA
S
URE PLANE (Cy
c
le 431, DIN/ISO: G431)
17.13 MEASURE PLANE (Cycle 431,
DIN/ISO: G431)
Cycle run
Touch Probe Cycle 431 finds the angle of a plane by measuring three
points. It saves the measured values in system parameters.
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 and
measures the first touch point of the plane. The TNC offsets the
touch probe by the safety clearance in the direction opposite to the
direction of probing.
2 The touch probe returns to the clearance height and then moves in
the working plane to starting point
2 and measures the actual value
of the second touch point of the plane.
3 The touch probe returns to the clearance height and then moves in
the working plane to starting point
3 and measures the actual value
of the third touch point.
4 Finally the TNC returns the touch probe to the clearance height and
saves the measured angle values in the following Q parameters:
X
Z
Y
1
2
3
+X
+Y
A
B
Parameter number Meaning
Q158 Projection angle of the A axis
Q159 Projection angle of the B axis
Q170 Spatial angle A
Q171 Spatial angle B
Q172 Spatial angle C
Q173 to Q175 Measured values in the touch probe axis
(first to third measurement)