
B–65162E/03
11. OPTION RELATED TO SPINDLE
415
Unlike conventional mechanical spindle orientation using a stopper, etc.,
the spindle orientation stops the spindle at a fixed position by directly
feeding back position signals from the position coder directly connected
to the machine spindle.
This orientation is accomplished simply by connecting the position coder
to the spindle without any need of mechanical orientation mechanism
(stopper, pin, etc.) for spindle orientation.
Since the spindle motor connected to the spindle is utilized and the
orientation can be performed directly from high-speed rotation,
irrespective of gear shift, the orientation time is largely reduced.
This sequence consists of the spindle orientation command, its
completion signal, spindle clutch/gear only without any need of other
signals. Neither orientation speed command sequence nor torque limit
command sequence is needed.
Electrical system assures improved reliability without any damage to the
mechanical section against an external impact.
The spindle orientation accuracy and rigidity are enough to execute
automatic tool exchange (ATC).
Workpieces can be positioned to arrange their loading and unloading
directions in lathe.
Since the spindle orientation can be done in the same direction as the
rotating direction of the spindle when boring ends, workpieces will not
be damaged by tool blades.
Since these tool blades can be mounted or dismounted in a fixed direction
with reference to the workpieces, programming is easy.
11.1
SPINDLE
ORIENTATION
11.1.1
Position Coder Methed
Spindle Orientation (αC
Series Spindle)
11.1.1.1
General
11.1.1.2
Features
Mechanical parts are not
required.
Reduction of orientation
time
Simplified power
magnetic sequence
control
High reliability
High accuracy and
rigidity
Positioning of workpiece
Reduction of the number
of processes in boring