3 a u to matic w o rk piece measur ement – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
Page 95
HEIDENHAIN TNC 426, TNC 430
83
3.3 A
u
to
matic W
o
rk
piece Measur
ement
U
U
U
U
Center in 1st axis
Q273 (absolute value): Center of
the pocket in the reference axis of the working plane.
U
U
U
U
Center in 2nd axis
Q274 (absolute value): Center of
the pocket in the minor axis of the working plane.
U
U
U
U
First side length
Q282: pocket length, parallel to
the reference axis of the working plane.
U
U
U
U
Second side length
Q283: pocket length, parallel to
the secondary axis of 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
U
U
U
Setup clearance
Q320 (incremental): additional
distance between measuring point and ball tip. Q320
is added to MP6140.
U
U
U
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
Traversing to clearance height
Q301: definition of
how the touch probe is to move between the
measuring points:
0: Move at measuring height between measuring
points
1: Move at clearance height between measuring
points
U
U
U
U
Max. size limit 1st side length
Q284: maximum
permissible length of the pocket
U
U
U
U
Min. size limit 1st side length
Q285: minimum
permissible length of the pocket
U
U
U
U
Max. size limit 2nd side length
Q286: maximum
permissible width of the pocket
U
U
U
U
Min. size limit 2nd side length
Q287: minimum
permissible width of the pocket
U
U
U
U
Tolerance value for center 1st axis
Q279:
permissible position deviation in the reference axis of
the working plane.
U
U
U
U
Tolerance value for center 2nd axis
Q280:
permissible position deviation in the minor axis of the
working plane
X
Y
Q287
Q285
Q274
±Q280
Q273
±Q279
Q283
Q286
Q282
Q284
X
Z
Q261
Q260
MP6140
+
Q320