Back Issues

JUL/AUG 2013  

Follow us:

Find MICROmanufacturing on TwitterFind MICROmanufacturing on FacebookFind MICROmanufacturing on YouTubeMICROmanufacturing RSS feed

Lower-cost hexapod 6-axis-precision positioner enables new applications

Company

PI (Physik Instrumente) L.P.

(508) 832 3456

PI (Physik Instrumente) added a lower-cost hexapod to its large family of parallel positioning devices.  Hexapods produce motion in all 6 degrees of freedom--in the X-axis, Y-axis and Z-axis as well as pitch, yaw and roll.  With a freely programmable center of rotation these devices are virtually as versatile as the human hand.

The new H-820 was developed for applications that require multi-axis motion and high flexibility but do not need precision on a nanometer or sub-micrometer level. Driven by powerful brushless motors, PI’s new model caters to these needs with linear travel to 100 mm, rotary travel to 60°, load capacity of 20 kg, velocity of 20mm/sec, and resolution in the micrometer range.

H-820

The new H-820 6-axis precision positioner.

Applications
The hexapod is ideal for many applications including industrial automation and manufacturing, neuroscience, bio-technology research, or for micro-manipulation, the alignment and assembly of mechanical components, micromachining, satellite testing, sensor alignment, X-ray microscopy and medical engineering.

Drawings, specifications and datasheets can be found by clicking here.   

Why Parallel Kinematics?
The Hexapod is driven by six high-resolution actuators, all connected directly to one light-weight platform. This principle combines high system stiffness with a large clear aperture. Because of the low moving mass, small steps can be performed with significantly shorter settling times compared to stacked multi-axis positioners.  Another advantage of this design is the randomized, user-programmable pivot point.  In addition, there are no cable management issues and accumulation of runout and wobble errors such as with conventional stacked linear and rotary stages.  

Controller, Software, and 20 Years of Experience Included
The hexapod comes complete with an advanced motion controller and a comprehensive software package including alignment algorithms, simulation tools, programming examples, and LabView drivers. It is very easy to control and its users benefit from PI’s 20+ years of hexapod design experience and global export support.


Additional Information on Hexapods can be found by clicking here.