Linear motor offers full servo control
A
Quicksilver Controls product story
Edited by the Engineeringtalk editorial team
Jan 15, 2007
The QCI-L6 is a linear motor with full servo control which is ideal for high acceleration moves.
QuickSilver Controls, known for its ability to servo rotary microstep motors, has now extended these capabilities to include servoing linear step motors.
The QCI-L6 is a linear motor with full servo control which is ideal for high acceleration moves - up to 8.4G - which includes pick-and-place, wire bonding, semiconductor, parts inspection and other high-acceleration applications.
The technology required to servo a rotary step motor is not that much different than that required to servo a linear step motor.
Servoing a linear step motor retains all the advantages of servoing a rotary step motor.
Servo control adds accuracy and repeatability, while eliminating the problems of resonance, stalling and excess heating.
QuickSilver's closed loop servo control increases the motor's practical acceleration to over 8G, compared with 1G when operated open loop.
Maximum velocity is 1.95m/s.
The 1um encoder allows for +/-25um accuracy and is repeatable to +/-10um.
All active components are on the moving part of the motor, called a Forcer.
The stationary portion, called the platen, is not magnetised, and so it will not collect metal debris.
The forcer can produce 27N of force (continuous) while drawing less than 3A from the 12 to 48V power supply.
Maximum platen length is 3.66m.
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