Kistler maXYmos BL - What Is the Purpose of Dynamic Reference Points

maXYmos BL, Type 5867B…
Page 62 5867B_002-626e-04.16
4.4.4.4 What is the Purpose of Dynamic Reference Points?
External tolerances are often not covered by quality control but are nevertheless
superimposed on the measurement curve in the X direction. When the ABSOLUTE static
reference point is being used they inevitably lead to horizontal offsetting of the
measurement curve and hence often to NOK. Even GOOD parts are then evaluated as
NOK.
Example: Horizontal displacement of the measurement curves caused by
1. Su
p
erim
p
osition of
positioning tolerances of
the workholdin
g
fixture
1. Su
p
erim
p
osition of external
tolerances of the housing of the
3. Su
p
erim
p
osition of simultaneous
positioning and housing tolerances of
the workpiece
Position tolerance
P
F
Housing tolerance
I
F
Workholding
Fixtur
F