Programming Example - Siemens SINUMERIK 840D sl Programming Manual

Measuring Cycles for Milling and Machining Centers
5.8 CYCLE961 workpiece: Setup inside and outside corner
5.8.3.2

Programming example

Determination of coordinates of the corner of a workpiece with subsequent ZO offset
The coordinates of the corner of a workpiece are to be determined by outside measurement.
ZO G55 must be corrected in such a way that the corner point is workpiece zero when G55
is selected.
Measurement is performed in plane G17 with active G54. The values in mm of the
coordinates of points P1...P4 from which the workpiece can be approached parallel to the
axis are:
• P1.x=50
• P2.x=150
• P3.x=15
• P4.x=15
The probe is to be positioned at a height of 100 mm. The measuring depth is 60 mm lower.
The workpiece corner is expected to be at a distance less than 200 mm at each point
(_FA=100 [mm]).
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):
Length 1 - geometry (DP3):
Radius - geometry (DP6):
Length 1 (L1) must refer to the center of
the probe ball (_CBIT[14]=0), as for
calibration.
Careful when positioning! Radius R in
length (L1) is ignored.
220
P1.y=20
P2.y=20
P3.y=40
P4.y=80
710
L1 = 50.000
R = 3.000
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles