3 a u to matic w o rk piece measur ement – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
Page 107
HEIDENHAIN TNC 426, TNC 430
95
3.3 A
u
to
matic W
o
rk
piece Measur
ement
U
U
U
U
Center of 1st axis
Q273 (absolute): bolt hole circle
center (nominal value) in the reference axis of the
working plane.
U
U
U
U
Center in 2nd axis
Q274 (absolute): bolt hole circle
center (nominal value) in the minor axis of the working
plane.
U
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U
Nominal diameter
Q262: enter the bolt hole circle
diameter.
U
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U
Angle of 1st hole
Q291 (absolute): polar coordinate
angle of the first hole center in the working plane.
U
U
U
U
Angle of 2nd hole
Q292 (absolute): polar coordinate
angle of the second hole center in the working plane.
U
U
U
U
Angle of 3rd hole
Q293 (absolute): polar coordinate
angle of the third hole center in the working plane.
U
U
U
U
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.
U
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U
Clearance height
Q260 (absolute): coordinate in the
touch probe axis at which no collision between tool
and workpiece (fixtures) can occur.
U
U
U
U
Maximum dimension
Q288: maximum permissible
diameter of bolt hole circle.
U
U
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U
Minimum dimension
Q289: minimum permissible
diameter of bolt hole circle.
U
U
U
U
Tolerance value for center 1st axis
Q279:
permissible position deviation in the reference axis of
the working plane.
U
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U
Tolerance value for center 2nd axis
Q280:
permissible position deviation in the minor axis of the
working plane