Touch Probe Cycles: Automatic Datum Setting
14.14 Example: Datum setting in center of a circular segment and on top
surface of workpiece
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
14.14 Example: Datum setting in center
of a circular segment and on top
surface of workpiece
0 BEGIN PGM CYC413 MM
1 TOOL CALL 69 Z
Call tool 0 to define the touch probe axis
2 TCH PROBE 413 DATUM OUTSIDE CIRCLE
Q321=+25 ;CENTER IN 1ST AXIS
Center of circle: X coordinate
Q322=+25 ;CENTER IN 2ND AXIS
Center of circle: Y coordinate
Q262=30 ;NOMINAL DIAMETER
Circle diameter
Q325=+90 ;STARTING ANGLE
Polar coordinate angle for 1st touch point
Q247=+45 ;STEPPING ANGLE
Stepping angle for calculating the starting points 2 to 4
Q261=-5 ;MEASURING HEIGHT
Coordinate in the touch probe axis in which the
measurement is made
Q320=2 ;SET-UP CLEARANCE
Safety clearance in addition to SET_UP column
Q260=+10 ;CLEARANCE HEIGHT
Height in the touch probe axis at which the probe can
traverse without collision
Q301=0 ;MOVE TO CLEARANCE
Do not move to clearance height between measuring points
Q305=0 ;NUMBER IN TABLE
Set display
Q331=+0 ;DATUM
Set the display in X to 0
Q332=+10 ;DATUM
Set the display in Y to 10
Q303=+0 ;MEAS. VALUE TRANSFER
Without function, since display is to be set
Q381=1 ;PROBE IN TS AXIS
Also set datum in the touch probe axis
Q382=+25 ;1ST CO. FOR TS AXIS
X coordinate of touch point
Q383=+25 ;2ND CO. FOR TS AXIS
Y coordinate of touch point
Q384=+25 ;3RD CO. FOR TS AXIS
Z coordinate of touch point
Q333=+0 ;DATUM
Set the display in Z to 0
Q423=4 ;NO. OF PROBE POINTS
Measure circle with 4 probes
Q365=0 ;TYPE OF TRAVERSE
Move on circular path between measuring points
3 CALL PGM 35K47
Call part program
4 END PGM CYC413 MM
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