Product category:
Actuators, motion systems, etc
News Release from: Copley Controls Corp | Subject: Linear motor
Edited by the Manufacturingtalk Editorial
Team on 25 April 2007
Miniature linear motor for
pick-and-place systems
Copley Controls has introduced the ServoTube small-silhouette STB11 linear motor, a miniature direct-drive linear motor which reduces space requirements in pick-and-place systems.
Copley Controls has introduced the ServoTube small-silhouette STB11 linear motor The direct drive size 11 motor combines a slim form factor with superior control stiffness, unmatched bandwidth, and +/-12 microns positioning repeatability
This article was originally published on Manufacturingtalk on 4 Jun 2007 at 8.00am (UK)
Related stories
Direct-drive linear motor shrinks pick-and-place
Copley Motion Systems' STB11 motors are direct-drive linear motors which combine a slim form factor with high speed and 25g acceleration.
Fast ethernet introduced for robotic control
Ultrafast networking enable a centralised robot controller that handles path planning and manages all position and velocity control loops.
STB11's combination of simplicity, reliability and dynamic performance enable fast-response digital servos to replace complex, wear-prone electromechanical assemblies.
The motors are IP67 rated and are food-safe.
The STB11 motors provide ten times the speed and ten times the life of ballscrew actuators.
Further reading
Ultra slim linear actuators are highly compact
Copley Controls broadened its line of direct drive ServoTube linear actuators with the highly compact Model STA11.
Simplified motor controller matching introduced
CANopen I/O module simplifies system builder's task of matching network-based motion control controls to the equipment's external sensors and actuators.
STB11-based positioning stages have the same form-factor as ballscrew actuators.
Drop-in ballscrew replacement enables an easy migration to next-generation performance.
Motor compactness-forcer width is only 26 mm-provides benefits in applications where space is critical and costly: desktop, benchtop, and laboratory applications for example.
STB11 motors lend themselves to integration into compact systems used for inspection, analysis, assembly and packaging.
Their small silhouette translates into more production per square foot in hosts of space-critical applications.
The motor's combination of powerful drive force and low mass enable it to accelerate light loads to 25g.
Specifications include stroke to 372 mm, 46N-to-92N peak force, and 3.1-to-5.2 m/sec maximum velocity.
Thrust rod diameter is 11 mm.
The motor's integral solid-state position sensor eliminates the expensive and delicate external encoder traditionally required in linear motor systems.
Installation is simplified, cost reduced and the inherent ruggedness and dependability of the STB11's simple two-part construction is fully realised.
The motor's load-positioning forcer is driven directly by the interaction between its permanent magnet and electrically energized magnetic fields.
There are no intervening gear trains, ballscrews, flexible couplings or drive motors to add inertia and impair responsiveness.
STB11's permanent magnets are sealed into the stainless steel thrust rod.
The load-carrying forcer travels on a low friction single rail bearing; motor drive coils are encapsulated within the forcer, which travels in free air and acts as an efficient heat dissipater.
Users can optimise servo position control by matching STB11 motors to Copley's Accelnet digital controllers.
Accelnet controllers provide powerful stand-alone and multi-axis control choices; networking options include CANopen, Ethercat, Macro and DeviceNet.
Operated from DC power supplies, the controllers deliver the 70V power needed for optimal motor performance.
ServoTube 11 motors, with fast-acting, direct drive digital precision, are natural candidates to replace complex electromechanical assemblies.
The motors shrink space requirements in semiconductor, medical, pharmaceutical, printing, assembly, dispensing, and packaging automation.
They are free from the friction and wear that undermine repeatability and dependability of ballscrew and other positioners.
• Copley Controls Corp: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
