-38- FOR SAFE OPERATION
SO-NL-B9E/O
7
TO ENSURE HIGH ACCURACY
The accuracy of the finished product cannot be maintained unless the following points are
observed when operating the machine. Failure to observe these points can also cause accidents
involving serious injuries and damage to the machine. Study these points carefully before
operating the machine.
When setting the tooling, refer to the turret interference diagram and axis travel
diagram in the maintenance manual (DRAWINGS or PARTS LIST published
separately) so as to avoid interference. In the case of machines with two spindles, also
make sure there will be no interference during workpiece transfer. Careless tooling will
lead to interference between the tools and the workpiece, chuck, chuck jaws, covers,
tailstock (if featured) or headstock 2 (if featured), which could cause damage to the
machine.
WARNING
1.
Provide a chucking allowance that is large enough to ensure that the
workpiece will not come out of the chuck due to cutting forces or the
centrifugal force generated by spindle rotation. Depending on the
shape of the workpiece, it may need to be supported by the tailstock
(applies only to machines equipped with a tailstock). If the
workpiece flies out of the chuck during machining it could cause
serious injuries or damage to the machine.
2.
If the center of gravity of the workpiece does not coincide with the
center of rotation for the chuck (non-circular workpieces, eccentric
workpieces, etc.), fit a balancing weight to correct the balance and
choose machining conditions such as spindle speed carefully. If the
workpiece is rotated without correcting the balance it could fly out of
the chuck, causing and serious injuries or damage to the machine.
Failure to correct the balance will also adversely affect machining
accuracy. If a balancer is fitted, do not rotate the spindle with no
workpiece mounted to it. This will cause wear or seizure of the
spindle bearing, causing machine faults.
3.
Workpiece materials and shapes vary widely among machine users,
and Mori Seiki cannot predict the requirements for individual cases.
Give full consideration to the workpiece material and shape in order
to set the appropriate machining conditions. If inappropriate
settings are used, the workpiece or cutting tool could fly out during
machining, causing accidents involving serious injuries or damage
to the machine. Inappropriate settings will also adversely affect
machining accuracy.
CAUTION
