L979 Zo Determination In Hole (At Random Angles) - Siemens SINUMERIK 840 User Manual

5 Measuring Cycles for Milling Machines and Machining Centres

5.3.5 L979 ZO determination in hole (at random angles)

5.3.5 L979 ZO determination in hole (at random angles)
The following parameters must be defined prior to call:
Parameters Description
R10 = 0 No automatic ZO entry
= 1...4 Automatic ZO entry in ZO G54 ... G57
= 5 Automatic ZO entry in ZO G58
R13 = 0...359.5 Compensation angle position for monodirectional probe (see Section 2.5)
R13 = 0/-360 Positioning direction of spindle with multidirectional probe and
MDC 7004.0=1
R20 Centre point abscissa (in relation to workpiece zero point)
R21 Centre point ordinate (in relation to workpiece zero point)
R22 Number of measuring points/probe type/probe number
R23 = 21 ZO determination in hole
R24 = 0...359.5 Start angle
R25 Variable measuring speed in mm/min
R25 = 0 Standard cycle value
R26 = 0...359.5 Indexing angle
R27 = 1...R Number of measurements at same location (typically 1..3)
max
R28 = 1...R Multiplication factor for measurement path "2a"
max
R31 Velocity for circular interpolation
R32 Set value diameter
R36 Safe area (centre point coordinates)
See Section 10.2 for result display parameters.
Example: ZO determination in hole with measuring cycle L979 (Data as in Fig. 5.22)
%MPF 9795
N5 G54 T200
N10 G00 X240 Y130
N15 Z20 D99
N20 R10=1 R20=180
R23=21 R24=10
R27=1 R28=1
R36=1
N25 L979
N30 G00 Z160
:
Machining centre program
:
:
N... M30
5–58
R21=130 R22=1
R25=0 R26=90
R31=1000 R32=130
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Siemens AG 1990 All Rights Reserved
T number probe; select ZO
Position probe in X and
Y axes near P1
Position Z axis level with P1
Define parameters for measuring cycles
Cycle call for ZO determination in X/Y
Withdraw Z axis from hole
6FC5197- AB70
SINUMERIK 840/850/880 (BN)
07.90