HEIDENHAIN iTNC 530 (340 49x-04) Touch Probe Cycles - Manual (Page 138)

138 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.3 A
u
to
matic W
o
rk
piece Measur
ement
 Center of 1st axis Q273 (absolute): Bolt hole circle
center (nominal value) in the reference axis of the
working plane.
 Center in 2nd axis Q274 (absolute): Bolt hole circle
center (nominal value) in the minor axis of the working
plane.
 Nominal diameter Q262: Enter the bolt hole circle
diameter.
 Angle of 1st hole Q291 (absolute): Polar coordinate
angle of the first hole center in the working plane.
 Angle of 2nd hole Q292 (absolute): Polar coordinate
angle of the second hole center in the working plane.
 Angle of 3rd hole Q293 (absolute): Polar coordinate
angle of the third hole center in the working plane.
 Measuring height in the touch probe axis Q261
(absolute): Coordinate of the ball tip center (= touch
point) in the touch probe axis in which the
measurement is to be made.
 Clearance height Q260 (absolute): Coordinate in the
touch probe axis at which no collision between tool
and workpiece (fixtures) can occur.
 Maximum dimension Q288: Maximum permissible
diameter of bolt hole circle.
 Minimum dimension Q289: Minimum permissible
diameter of bolt hole circle.
 Tolerance value for center 1st axis Q279:
Permissible position deviation in the reference axis of
the working plane.
 Tolerance value for center 2nd axis Q280:
Permissible position deviation in the minor axis of the
working plane.
X
Y
Q291
Q293
Q292 Q274 ±Q280
Q273 ±Q279
Q289 Q262 Q288
X
Z
Q260
Q261