Linear motors provide forceful actuation
A
Copley Controls product story
Edited by the Engineeringtalk editorial team
Sep 27, 2006
Copley Controls' direct drive ServoTube linear motors can literally double the throughput of pick-and-place applications.
Copley Controls' direct drive ServoTube linear motors can literally double the throughput of pick-and-place applications.
Equipped with two independent load-positioning forcers - each controlled by its own Xenus Micro controller - ServoTube motors will position two items in the time ordinarily required to position one.
Multiple forcers run on a single rail bearing and pick twin objects with one centre-to-centre distance and then place them elsewhere at a different centre-to-centre distance.
In some productivity-enhancing configurations, one forcer loads while the other unloads.
A ServoTube motor's drive force is produced by the interaction between the forcer's electrically powered magnetic field and the thrust rod's permanent magnet field.
The thrust rod's permanent magnets are enclosed in a stainless steel tube; electromagnetic drive coils are contained within the forcer.
The motor's two forcers move independently-in opposite directions when required.
Each forcer's drive coil is energised by its own Xenus Micro controller.
Each of ServoTube's two independent forcers develops up 356N peak drive force, and 3m/s peak velocity.
A patented magnetic design enables a solid-state position sensor to replace costly feedback encoders and achieve 12um repeatability.
ServoTube motors are food safe and meet IP67 washdown specifications.
ServoTube's direct magnetic drive achieves fast response by eliminating the friction and inertia of rotary-to-linear conversion mechanisms.
ServoTube motors far surpass the agility and controllability of ballscrew and pneumatic positioning mechanisms.
Equipping the ServoTube motor with twin Forcers doubles this intrinsic productivity advantage.
The Xenus Micro is based on Copley's higher power Xenus controller.
The compact Xenus Micro retains all the functionality of its big brother.
Operating modes include indexer, PVT, camming and gearing.
Xenus Micro interfaces to DeviceNet, CANopen, ASCII, stepper commands, and +/-10V position/velocity/torque signals.
Operation is from 100-240V AC, with 10A peak current.
ServoTube dual forcer installations perform positioning tasks that are impossible with ballscrew and pneumatic positioning.
The motors can literally double productivity in transferring, supplying, labelling, filling, stuffing, and other pick-and-place applications.
The motors expand throughput in packaging, material handling and automated assembly systems.
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