Rotary Tables and Rotary Stages

A rotary table is designed to be used in conjunctionRotary stages are used in industrial robots, fiber optics
with vertical mills. When a rotary table is put on aand photonics, vision systems, machine tools, assembly,
vertical mill what you create is a machine that issemiconductor equipment, medical component laser
theoretically capable of reproducing itself, is a precisionmachining, electronic manufacturing, and other
work positioning device used in metalworking.high-performance industrial automation applications.
A standard milling machine set-up usually involvesRotary stages provide the best angular positioning and
aligning the work with the table and then with thevelocity control. Applications range from indexing to
spindle. The table can be accurately moved with thehigh-speed laser machining to precision wafer
hand wheels making this a simple operation for most.inspection. All of these applications are fine tuned to
Aligning a part on a rotary table however can bethe best numbers possible using rotary stages.
difficult because the work has to be clamped intoThere are several types of rotary stages at this point
position. This is not always easy when you arein the game however the ones getting the most press
working alone.are the laser guided rotary stages. Utilizing lasers helps
Most experts suggest that you start by doing thecreate the most absolute positioning to date. Some of
rotary table work first which can eliminate the need forthe newer rotary stages are ideal for applications that
precision aligning. Aligning the milling spindle with therequire X, Y and q degrees of movement for ambient
rotary table can be done by indicating the hole in theand high vacuum environments. They tend to feature
center of the rotary table. You then need to spot drillhigh resolution, high stability as well as being available
the center on the work you wish to have line up withfor ambient and high vacuum environments. Experts
the rotary table. Finally put a pointer in the spindle thatalso agree that having the choice of lateral and
is accurate. After doing this set the work under therotational degrees of freedom also lends that extra
spindle and lower the head until it engages with theprecision that is needed in delicate jobs as well as the
center mark at this point clamp the part down. Andstrength for larger projects.
there you have it, locked and ready to work with.