CHUCKING C-25
4
CHUCK JAW STROKE END DETECTION FUNCTION
When gripping a workpiece, the gripping force of the chuck is low if the workpiece is clamped near
the stroke end of the master jaw. Rotating the spindle in this condition is hazardous because the
workpiece may disengage from the chuck.
Therefore, the "chuck jaw stroke end detection function" is provided to disable spindle start if a
workpiece is clamped by the chuck near the master jaw stroke end. Switches are mounted to the
chuck opening/closing cylinder to detect the stroke ends. This prevents the spindle from being
started with the workpiece clamped near the master jaw stroke end to ensure the safety of
operators.
1.
The chuck jaw stroke end detection function is available only when the machine is
shipped with the chuck and cylinder recommended by Mori Seiki.
2.
Depending on the chuck and cylinder specification, optional chuck clamp/unclamp
detecting switches may be equipped as a substitute for chuck jaw stroke end
detecting switches. With the chuck clamp/unclamping detecting switches, it is not
possible to detect clamping of a workpiece if it is clamped in the chuck near the
master jaw stroke end.
Depending on the combination of the selected specifications, the chuck jaw stroke
end detection switch function or the chuck clamp/unclamping detection switch
function may not be installed. For details, contact Mori Seiki.
<Construction>
Location and construction of the detecting switches are shown below.
1.
The illustration shows the construction of a
hollow cylinder. This may be different from
the cylinder used in your machine.
2.
The detecting switch is adjusted before
shipping.
NOTE
Dog
Proximity switch
Bracket
1 mm
NOTE
