HEIDENHAIN iTNC 530 (340 49x-04) Touch Probe Cycles - Manual (Page 140)

140 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.3 A
u
to
matic W
o
rk
piece Measur
ement
MEASURE PLANE (touch probe cycle 431,
DIN/ISO: G431)
Touch probe cycle 431 finds the angle of a plane by measuring three
points. It saves the measured values in system parameters.
1 Following the positioning logic (see “Running touch probe cycles”
on page 26), the TNC positions the touch probe at rapid traverse
(value from MP6150 or MP6361) 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 Measured value in the touch probe axis