Programming Example - Siemens SINUMERIK 840D sl Programming Manual

6.5.3.2

Programming example

1-point measurements at outside and inside diameters with tool offsets
An outside diameter with tool T7, D1 and an inside diameter with tool T8, D1 has been
machines on a workpiece. The set diameters have the dimensions shown in the figure.
If the absolute value of the difference determined is >0.002 mm, the length (in measuring
axis _MA) of the tool is to be automatically offset in the wear. The maximum permissible
deviation is taken as max. 0.5 mm. Max. 0.04 mm is permissible. To obtain a minimum
measuring path of 0.5 mm, the measuring path is programmed as _FA=0.5+0.5=1 mm (max.
total measuring path = 2 mm).
The offset must take the empirical value in memory _EV[12] into consideration for T 7, or
_EV[13] for T 8. Mean value calculation _MV[12] or _MV[13] and inclusion in calculation are
also to be used. This tool offset will therefore affect the production of the next workpieces or
possible remachining.
Clamping for workpiece:
Zero offset, with settable ZO G54: NVz
Workpiece probe 1, used as tool T9, D1, is to be used.
The probe is already calibrated. Arrays for workpiece probe 1: _WP[0, ...]
The following is entered under T9, D1 in the tool offset memory:
Tool type (DP1):
Cutting edge position (DP2):
Length 1 - geometry (DP3):
Length 2 - geometry (DP4):
Radius - geometry (DP6):
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring Cycles for Turning Machines
6.5 CYCLE974 workpiece: 1-point measurement
580
7
L1 = 40.123
L2 =
100.456
3.000
6-73