HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 465)

HEIDENHAIN TNC 640 465
1
7.4 MEA
S
URE ANGLE (Cy
c
le 420, DIN/ISO: G420)
U Traverse direction 1 Q267: Direction in which the
probe is to approach the workpiece:
–1: Negative traverse direction
+1: Positive traverse direction
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. Input range
-99999.9999 to 99999.9999
U Set-up clearance Q320 (incremental): Additional
distance between measuring point and ball tip. Q320
is added to SET_UP (touch probe table). Input range 0
to 99999.9999
U Clearance height Q260 (absolute): Coordinate in the
touch probe axis at which no collision between touch
probe and workpiece (fixtures) can occur. Input range
-99999.9999 to 99999.9999
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 Measuring log Q281: Definition of whether the TNC is
to create a measuring log:
0: No measuring log
1: Generate measuring log: the TNC saves the log file
TCHPR420.TXT by default in the directory TNC:\
2: Interrupt program run and display the measuring
log on the screen. Resume program run with NC
Start.
Example: NC blocks
5 TCH PROBE 420 MEASURE ANGLE
Q263=+10 ;1ST POINT 1ST AXIS
Q264=+10 ;1ST POINT 2ND AXIS
Q265=+15 ;2ND POINT 1ST AXIS
Q266=+95 ;2ND POINT 2ND AXIS
Q272=1 ;MEASURING AXIS
Q267=-1 ;TRAVERSE DIRECTION
Q261=-5 ;MEASURING HEIGHT
Q320=0 ;SET-UP CLEARANCE
Q260=+10 ;CLEARANCE HEIGHT
Q301=1 ;MOVE TO CLEARANCE
Q281=1 ;MEASURING LOG