Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual do Utilizador Página 77

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Chapter 3
Offset Tables and Setup
3-5
The dresser radius and corner radius compensation schemes use the same
radius table to store a radius value. The entire wheel radius scheme stores
the entire wheel radius in paramacro variable #5508. Which dresser/wheel
radius compensation scheme to use on your system depends on the current
application of your grinder. See chapter 15 for details on how to properly
implement these schemes.
Dresser/Wheel Radius
Compen sation Scheme
LengthOffsets Coordinate System
Offset (G54-G59.3)
Dresser/Wheel Radius
Compen sation
DresserRadius Shifted on Z andXaxis towheel
control point
Shifted to pointon
dressertip
On radiusofdiamond
dresser
CornerRadius Shifted on Z and X axisto wheel
control point
Shifted to pointonpart
being machined
On radiusofwheel corner
whereZ and Xlength
offsetis located
Entire Wheel Radius Shifted on Z to controlpoint ofwheel,
Yoffsetis takeninto consideration
withdresser/wheelradius
compensation
Shifted to pointonpart
being machined
On entireradius ofwheel
Figure 3.3
Dresser/Wheel Radius Compensation Schemes
Dresser Radius Corner Radius
Entire Wheel Radius
(commonforbothcylindrical
and surfacegrindingapplications)
(commonforbothcylindrical
and surfacegrindingapplications)
(almostexclusivelyused forsurface grinding)
Radiusof
dressertip
Radiusof
wheel corner
Radiusof
Entire Wheel
11984-I
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