Programming Example - Siemens SINUMERIK 840D sl Programming Manual

5.3.3.2

Programming example

Calibrating a workpiece probe in the X-Y plane, unknown hole center point
Workpiece probe 2, used as tool T10, D1, is to be recalibrated in a hole with D=110.246 mm
and not precisely known center point (CP) in axes X and Y in both axis directions with G17
and paraxially (to redetermine trigger values _WP[i,1] to _WP[i,4].
The positional deviation (skew _WP[i,7], _WP[i,8]) and precise ball diameter _WP[i,0] of the
probe is also to be ascertained.
The radius of the probe ball and length 1
must be entered in the tool offset memory
under T10, D1, before the cycle is called.
Tool type (DP1):
Length 1 - geometry (DP3):
Radius - geometry (DP6):
Length 1 (L1) must refer to the center of
the probe ball: _CBIT[14]=0.
Careful when positioning! Radius R in
length (L1) is ignored. But the desired
calibration height can be entered directly.
Zero offset, with settable
ZO G54:
Arrays for workpiece
probe 2:
(already contains
approximate values)
%_N_CALIBRATE2_IN_X_Y_MPF
N10 G54 G90 G17 T10 D1
N20 M6
N30 G0 X100 Y80
N40 Z10
N50 _CBIT[14]=0
N60 _TSA=1 _PRNUM=2 _VMS=0 _NMSP=1
_TZL=0
N61 _MVAR=010108 _SETVAL=110.246
_FA=_SETVAL/2
N70 CYCLE976
N80 Z40
N100 M2
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring Cycles for Milling and Machining Centers
710
L1 = 50.000
R = 3.000
NVx, NVy, ...
_WP[1, ...]
;ZO selection, select probe as tool and
;operating plane
;Insert probe and activate tool offset
;
;Position probe in hole
;Position probe in hole at
;calibration height
;Length 1 relative to probe ball center
;Set parameter for calibration cycle:
;Calibrate probe 2 in
;4 axis directions with calculation of
;positional deviation and calculation of
;diameter of probe ball
;Measuring cycle call, calibrate paraxially
;Position probe above workpiece
;End of program
5.3 CYCLE976 calibrate workpiece probe
129