Aerotech’s ASR1100 series is an extension of the hugely
successful ASR1000 direct-drive rotary stage. The ASR1100 adds
an integral pneumatically-operated collet chuck providing “out-of-the-box”
material handling capability.
Integral Collet Design
The collet chuck on the ASR1100 accepts ER16 series collets. These
collets are readily available in multiple sizes supporting tube
diameters from 0.5 mm to 10 mm. The collet is retained with a
threaded retaining cap that enables quick changeover to different
tube diameters. The collet chuck is configured in a “fail-safe”
mode where full clamping force is applied when no air pressure
is present. Applying air pressure up to 40 psi adjusts the collet
from fully closed to fully open. Air is delivered to the rotating
collet assembly through a custom-designed frictionless, seal-less,
rotary union. This 100% noncontact rotary union design ensures
a lifetime of maintenance-free operation. The combination collet
chuck and rotary union also has significantly less friction and
inertia than external assemblies created from discrete parts.
This reduced inertia improves system performance by allowing higher
peak acceleration and reducing position error during laser machining
operations.
Brushless Direct-Drive
The ASR1100 series utilizes direct-drive brushless motor technology
to maximize positioning performance. Direct-drive technology is
optimized for 24/7 production environments because there are no
brushes to replace and no gear trains or belts to maintain. Direct
drive also provides quicker acceleration and higher top speeds
than gear- or belt-driven mechanisms, yielding higher total overall
throughput. This makes the ASR1100 an excellent choice for processing
small-diameter tubular materials.
The low maintenance and high throughput characteristics of the
ASR1100 provide a stage that yields the lowest total cost of ownership.
Compact Packaging
The design of the ASR1100 series direct-drive rotary stage was
optimized to minimize stage weight and rotating inertia. The resulting
product, with a net overall weight under 5 kg (11 lb), is significantly
lighter than competitive product offerings. When used in a multi-axis
system, the lower weight results in an increase in performance
for all positioning stages carrying the rotary stage.
|