2 a u to matic d at u m set ting – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
Page 59
HEIDENHAIN TNC 426, TNC 430
47
3.2 A
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Center in 1st axis
Q321 (absolute value): Center of
the stud in the reference axis of the working plane.
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Center in 2nd axis
Q322 (absolute value): Center of
the stud in the minor axis of the working plane.
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First side length
Q323 (incremental value): Stud
length, parallel to the reference axis of the working
plane
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Second side length
Q324 (incremental value): Stud
length, parallel to the secondary axis of the working
plane.
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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.
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Setup clearance
Q320 (incremental): additional
distance between measuring point and ball tip. Q320
is added to MP6140.
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Clearance height
Q260 (absolute): coordinate in the
touch probe axis at which no collision between tool
and workpiece (fixtures) can occur.
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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
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Datum number in table
Q305: Enter the datum
number in the table in which the TNC is to save the
coordinates of the stud center. If you enter Q305=0,
the TNC automatically sets the display so that the
new datum is on the stud center.
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New datum for reference axis
Q331 (absolute):
coordinate in the reference axis at which the TNC
should set the stud center. Basic setting = 0
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New datum for minor axis
Q332 (absolute):
coordinate in the minor axis at which the TNC should
set the stud center. Basic setting = 0
Example: NC blocks
5 TCH PROBE 411 DATUM OUTS. RECTAN.
Q321=+50 ;CENTER IN 1ST AXIS
Q322=+50 ;CENTER IN 2ND AXIS
Q323=60 ;1ST SIDE LENGTH
Q324=20 ;2ND SIDE-LENGTH
Q261=-5 ;MEASURING HEIGHT
Q320=0 ;SET-UP CLEARANCE
Q260=+20 ;CLEARANCE HEIGHT
Q301=0 ;TRAVERSE TO CLEAR HEIGHT
Q305=0 ;NO. IN TABLE
Q331=+0 ;DATUM
Q332=+0 ;DATUM