Reference Points On Machine And Workpiece - Siemens SINUMERIK 840 User Manual

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1.11

Reference points on machine and workpiece

The actual axis values of different actual value systems must be measured depending on the
kind of measurement taken. For determining the tool length, for instance, it is advisable to use
the machine actual value, while for measuring workpiece dimensions and for determining tool
wear compensation it is more advantageous to use the workpiece zero point (Fig. 1.23). The
machine actual value is the dimension between the machine zero point and the tool reference
point.
X
Spindle chuck
M W
M' C
Fig. 1.23 Reference points on machine and workpiece
M = Machine zero point
M' = Machine zero point displaced by DRF
T = Control zero point by means of RESET displacement
W = Workpiece zero point
F = Tool reference point
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Siemens AG 1990 All Rights Reserved
SINUMERIK 840/850/880 (BN)
1.11 Reference points on machine and workpiece
Workpiece
END OF SECTION
6FC5197- AB70
1 Introduction
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