The Cog-free brushless linear
motor is designed for unlimited stroke (travel) servo applications
that require smooth operation without cogging. These motors
are supplied in kit form to be integrated into a customer’s
machine. They are used in closed-loop servo systems and provide
optimum performance.
The linear brushless AC Cog-free servo motor
consists of a stationary magnet track and a moving coil assembly.
The U-shaped, multi-pole magnet track is comprised of alternating
polarity rare-earth magnets bonded to a hardchrome plated, cold-rolled
steel plate. Modular track assemblies stack end to end to provide
the length of stroke required. The coil assembly must be centered
within the U-shaped magnet track and guided by customer supplied
bearings. Individual coil assemblies can be mounted in series
(as a single unit) to increase force. Multiple coil assemblies
having independent operation and overlapping trajectories can
also be mounted on a single
magnet track. |