Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 470

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Angled-Wheel Grinding
Chapter 14
14-2
Figure 14.1
Angled-Wheel Grinder typical Axis Configuration
+XAxis
(virtual)
+Z Axis
Part
+W
Wheel Axis
Part Spindle
Angled-wheel grinders have the same integrand letter for the wheel axis
(W) and the virtual axis (X). R efer to your system installers
documentation to determine the integrand name for the X and W axes.
It is necessary to tell the control the angle of the wheel axis. This angle is
required to perform calculations that determine the wheel axis position (W)
based on the programmed control positions for the virtual axis X. There
are three methods to specify this angle. They are:
Thisentrymethod: Has thisconfiguration:
Fixed Angle the systeminstaller has settheangle of the wheel axis in AMP. The
angle ofthe wheel axis isrigidand can not be adjustedby the
operator.
RotaryAxis the angle ofthe wheel axisisdeterminedby the positionof a rotary
axis. Typicallythisrotaryaxischangesthewheelangle. When angle
wheel modeisentered,the positionof therotaryaxis is recordedand
used asthewheel angl e. The systeminstallerdeterminesthis rotary
axisin AMP.
PALSelected the systeminstallers PAL program enterstheangle of the wheel axis.
This methodcan requireyouto enterthe angle ofthewheel axis,or
someexternalinputto PALcandeterminetheangle. Refertoyour
system installers documentation for details.
Refer to your system installers documentation for details on which of these
methods are used on your system.
Regardless of the method used, the angle of the wheel axis must remain
constant once angle wheel mode is entered (G16.3 or G16.4). You can not
change the entered value of the angled wheel axis in angled wheel mode.
Any rotary axis or PAL interface that determines the wheel axis angle must
be disabled in angled wheel mode (except for homing).
14.2
Determining the Wheel
Angle
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