
In-process Dresser
Chapter 21
21-4
As the grinding wheel is dressed, the in-process dresser generates an offset
similar to a length offset. The axis (or axes) that this dresser offset is
applied to is directly dependent on the currently active plane (G17, G18, or
G19) and the grinding wheel plane (defined as the plane made up of the
horizontal and vertical compensation axes selected in AMP for the
in-process dresser). The following table applies provided the control is not
in the end of program state.
Reciprocation is: the active plane is: the offset affects:
On anyplane onlytheaxisdefined in AMPas thevertical
compensationoffsetaxis. See Figure 21.2.
Off thesame as theplane of
thegrinding wheel
(definedin AMPas the
horizontal and vertical
compensationaxes)
bothaxes in the plane. T he offset vectoris
brokendown i nto itstwocomponentsin that
plane and applied tothe appropriateaxis on
a permovebasis. See Figure 21.2.
Off notthe sameasthe plane
ofthe grinding wheel
theaxis thatis in boththegrinding wheel
plane (eitherthehorizontal or vertical
compensationaxis definedinAMP) and the
currently activeplane. The entire in-process
dresser offsetis applied to this axis.
Figure 21.2
Offset Cases as Dependent on Active Plane
Workpiece
In-process dresser offset
OverWheel
Roll Dresser
Part
OverWheel
Roll Dresser
OffsetVector
(actual changeinwheel diameter)
In-process dresser offset
componentapplied toeach
axisin the currentplane
Reciprocation O n Reciprocation offand in grinding wheel plane
12098-I
21.1.1
Plane Selectionfor the
In-process Dresser Offset
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