Touch Probe Cycles For Single-Point Measurement; Single-Point Meas. For Tool Comp. G770 - HEIDENHAIN CNC PILOT 640 User Manual

Touch probe cycles | Touch probe cycles for single-point measurement
5.2 Touch probe cycles for single-point
measurement

Single-point meas. for tool comp. G770

Cycle G770 measures with the programmed measuring axis in the
specified direction. If the tolerance value defined in the cycle is
exceeded, the cycle saves the measured deviation either as tool
compensation or as an additive compensation. The result of the
measurement is saved additionally in the variable #i99.
"Touch probe cycles for automatic mode",
Further information:
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Cycle run: From the current position the touch probe moves along
the defined measuring axis toward the measuring point. When the
stylus touches the workpiece, the measured value is saved and the
touch probe is positioned back to the starting point.
The control outputs an error message if the touch probe does
not reach any touch point within the defined measuring path.
If a Max. deviation WE was programmed, the measuring point
is approached twice and the mean value is saved as result. If
the difference of the measurements is greater than the Max.
deviation WE, the program run is interrupted and an error message
is displayed.
Parameters:
R: Type of correction
1: Tool compensation DX/DZ for turning tool or additive
compensation
2: Recessing tool Dx/DS
4: Milling tool DD
D: Measuring axis – axis in which the measurement is to be
made
K: Incr. meas path w/ Ri. (the algebraic sign determines the
probing direction) – maximum measuring path for probing
AC: Target pos. nominal value – touch point coordinate
BD: Tolerance position +/ – measurement result range in which
no compensation is applied
WT: Correction no. T or G149
T: Tool at turret position T to compensate the difference to
the nominal value
G149: Additive compensation D9xx to correct the difference
to the nominal value (only possible with compensation type
R = 1)
E: Maximum perm. correction for the tool compensation
WE: Max. deviation – probe twice and monitor the dispersion
of the measured values
V: Retraction type
0: Without—only position touch probe back to the starting
point if the touch probe was deflected
1: Automatic—always position touch probe back to the
starting point
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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