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VL-8
Inverted-Spindle Vertical
Lathe
Relative Movement
The VL-8 Inverted-Spindle lathe is a revolutionary
design that is changing the way parts are manufactured. By
mounting headstock (with built-in spindle) in an overhead
vertical position on linear roller guides, chip removal
greatly improves while performing drilling, boring and turning
operations, With highly efficient evacuation of chips from the
machining area, customers experience longer tool life by
reducing the recutting of chips.
Repid traverse 72M/min
Acceleration 1.3G |
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3.
High Speed Turret
The turret indexing operation is performed by
high speed roller gear cam with a very short cycle time of
0.15 second. Curvic coupling is employed for clamping
operation without use of any hydraulic devices. Thanks to
the pure mechanical system, the highly reliable operation
and long term maintenance free are guaranteed.
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1.
Built-in Spindle Motor
 Addition
to bearings, a heavy duty roller bearing is adopted as
spindle front bearing. Owing to Olympic Seiki special
design, the temperature elevation is suppressed without
sacrifice the rigidity and speed. 8" chuck, spindle speeds
up to 4500 rpm with 18.5 kw / 25 HP power output is
excellent for most turning tasks. |
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2.
Automatic Workpiece Changer
The built-in automation design incorporates a 8
station indexing stocker standing by the main spindle that
can traverse very fast to the machining position to unload
/ -load the workpieces. The VL-8 is pre-programmed to use
macro variables for simplified automation. The operator
simply needs to enter a few variables such as part height.
All other loading and unloading activities are
automatically calculated by pre-supplied programs. For a
job changeover, the operator needs only to change the
chuck jaws and a few quick-change tools, and enter the
part program into the control. This results in more time
spent for machining.
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4.
Relative Movement for
Z Axis
- The mass of relatively moving parts are equally
designed, the dynamic balance is better than any machine
tools ever.
The Relative Movement machines show very little vibration
even when positioning at very high speed and very high
acceleration.
- For vertical axes, no additional countermeasures, such
as counter weight, hydraulic or pneumatic cylinders, or
bigger servomotors are necessary for balancing the weight of
headstock (or traversing table).
- Very long service life of ball screw and support
bearing. Less thermal displacement due to heat generation
which increases with the ball screw speed. The high accuracy
can therefore be maintained without thermal effect.
No extra cost for Anti-temperature-elevation measures, for
example, interior or exterior coolant system.
- Compact machine size: the length of a conventional
linear axis is composed of table length, axis traverse and
telescopic cover space; Much more compact design is possible
than ever.
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