Archive for the 'Technical Support Information' Category

What’s the Difference between Pneumatic, Hydraulic, and Electrical Actuators?

White Paper by Carlos Gonzalez | Machine Design  originally posted April 16, 2015

A linear actuator moves a load, which can be an assembly, components, or a finished product, in a straight line. It converts energy into a motion or force and can be powered by pressurized fluid or air, as well as electricity.

Here is a breakdown of common linear actuators, their advantages and their disadvantages….

Click on the link below to download this article in .PDF format

PDF Article: What’s the Difference between Pneumatic, Hydraulic, and Electrical Actuators?

Ball Screw Maximum Compression Load

A compression load is a force that tends to compress, or buckle a ball screw shaft.  If a compressive force is applied to a screw that exceeds its column strength, the ball screw will bend and cause premature or permanent failure.  This can happen in either horizontal or vertical applications.  In some cases, you may have to select a more rigid end support housing arrangement, and/or a larger diameter screw in order for the ball screw assembly to withstand your compression load.

Ball screw compression-loads

If a sufficiently heavy load is applied to a nut with a long ball screw in a horizontal application, the ball screw could buckle.  In a vertical application, if a fixed or rigid motor driven housing is mounted below the ball screw, the ball screw weight and load weight could buckle the screw.  Therefore, in a vertical application, installing the motor driven support housing above the ball screw puts the ball screw assembly in a tension mode, while the bottom end support bearing is free to “float axially” and is used only to guide the end of the screw.  By loading the screw in tension, most of the time you avoid any compression load issues, and only need to be concerned with the load capacity of the nut and end support bearings.  However, in some vertical applications with the ball screw mounted in a tension mode, you will have to be concerned about compression loads if you have a reversing force that exceeds the load weight being moved.

Information on Lintech’s Family of Ball Screws can be viewed at the following webpage-
Lintech Ball Screw Product Information

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Ball Screw, Lead Screw, Roll Thread Screw, Lintech, Electromate

Mechatronics: Industrial Automation Webinar

Mechatronics Webinar Snippet

View archived webinar

Originally recorded on 11/19/2014  by DesignNews

Industrial automation continues to benefit from the fruits of the mechatronics industry, namely the increasing inclusion of electronics within the traditional mechanics.  However, as this integration grows stronger, more smarts are needed from the design team to ensure that the mechanics are taking full advantage of all that the electronics subsystem has to offer.  In the industrial automation space, some of these terms and technologies are less well-known.  Never fear, as we’ll discuss these topics in detail on this webinar, ensuring that you can maximize the mechatronics technologies that are at your disposal.

Servo Solutions for Mobile Automation Challenges. On-Demand Webinar

YouTube Video-  57minutes

With automation expanding out of the factory, machine builders are faced with a varying set of new challenges. Mobile platforms, such as unmanned systems, are expected to operate in extreme environments and carry their own power source; all while being light weight and compact.

To meet the current and future needs of the market, enabling technologies need to be applied and discovered. At the forefront of the enabling technologies are servo drive controllers.

Servo controllers not only make a robot or mobile platform move, they can also be solutions to the other design requirements. A servo is an integral component to any mobile solution and can help with power efficiency, communication, agility and dexterity. This webinar will touch on the challenges presented to robot designers and how servo drives can make them successful.

Webinar Presenter: Shane Beilke, Advanced Motion Controls: Executive Team – Product Strategy

Click on the link below to view this webinar.

Tags:  AMC, Advanced Motion Controls, Mobile Automation, Bots, Mobile Robotics, Servo Controllers, Automation, Motion Control, Mobile Systems

The Key Components Behind the Robots

DesignNews On Demand Webinar –Duration: 60-minutes

Click on the link below to view this webinar
https://event.on24.com/eventRegistration/EventLobbyServlet?target=registration.jsp&eventid=758901&sessionid=1&key=D0615F747207CCE3C168B9A27CB34ABF&sourcepage=register

About the webinar

What’s behind every great robot? A great motor or even multiple motors, for starters. It also involves the bearings, cables, drives, and controllers, and in some cases, linear actuators. Whether your robot is being deployed on a factory floor, in an operating room, or in one of the now-famous drones, it’s these technologies that serve as the differentiators. In fact, robotics can be in applications that range from the very coarse to the very fine. For that reason, the types of motors and other components must also vary widely.

Attend this webinar and learn about:

  • The different components that are available, specifically for robotics applications
  • How the components differ
  • How you can choose the most appropriate parts for your robotic application
  • The efficiencies that can be gained by making the right choice

Speakers

John Payne
Vice President of Motion
Yaskawa America Inc.

Chad Henry
North American Sales Manager
Staubli Robotics

Moderator

Rob Spiegel
Senior Editor
Design News, UBM Canon

Click on the link below to view this webinar
https://event.on24.com/eventRegistration/EventLobbyServlet?target=registration.jsp&eventid=758901&sessionid=1&key=D0615F747207CCE3C168B9A27CB34ABF&sourcepage=register

New Webinar. Servo Solutions For Mobile Automation Challenges

Live Webinar Tuesday April 21, 2015 11:00am EST, presented by Advanced Motion Controls & Electromate

With automation expanding out of the factory, machine builders are faced with a varying set of new challenges.  Mobile platforms, such as unmanned systems, are expected to operate in extreme environments and carry their own power source; all while being light weight and compact.

To meet the current and future needs of the market, enabling technologies need to be applied and discovered.  At the forefront of the enabling technologies are servo drive controllers.

Servo controllers not only make a robot or mobile platform move, they can also be solutions to the other design requirements.  A servo is an integral component to any mobile solution and can help with power efficiency, communication, agility and dexterity.  This webinar will touch on the challenges presented to robot designers and how servo drives can make them successful.

Webinar Presenter: Shane Beilke, Advanced Motion Controls: Executive Team – Product Strategy

Register to watch the recorded webinar live or any time after April 21, 2015.

Register Online

 

Tags:  AMC, Electromate, Advanced Motion Controls, Webinar, Mobile Automation, Servo Drive, Servo Amplifier, Servo Controller, robot, mobile platform, servo, automation, motion control

High Efficiency Motors

Reprint of maxon motor USA October 14, 2014 white paper

To understand the concept of high efficiency motors, you must first know how to calculate efficiency and the losses associated with the motor components themselves.

The final measured efficiency of a motor is calculated based only on the elements of the particular application they’re used in.  For the motors themselves, without a load, manufacturers provide ratings based on standard formulas.  To understand high efficiency motors you only need to know what makes them different.

Cutaway of a maxon brush servo motor

Cutaway of a maxon brush servo motor

But first, let’s look at the basic concept used for explaining motor efficiency, which says that efficiency is the ratio between the shaft output power and the electrical input power.  Shaft output can be measured in horsepower or watts. We’ll use watts for the purposes of this article.  The formula most often used is the simple one mentioned above:

ηm = Pout / Pin

where

ηm = motor efficiency
Pout = shaft power out (Watts)
Pin = electric power to the motor (Watts)

Once you’ve used this formula and found your efficiency – and it’s not 100 percent – it’s time to consider the losses that occurred inside the motor.  Motor efficiency drops based on a number of known factors where power is lost as current through the motor is met with a variety of resistances.  These losses can include the wiring and its resistance, iron losses due to magnetic events, and thermal losses.

The electrical power that is lost in the primary rotor and in the secondary stator windings are called resistance losses (or copper losses, because they are based on the characteristics of the wire used including its diameter and length).  Both primary and secondary resistance losses vary with the load in proportion to the current squared. For example:

Pcl = R I2

where

Pcl = stator winding, copper loss (W)
R = resistance (Ω)
I = current (Amp)

Other losses include, iron losses, as mentioned above.  These losses are the result of the amount of magnetic energy dissipated when the motor’s magnetic field is applied to the stator core.  Other factors involved include mechanical losses, which involve the friction in the motor bearings and stray losses, which are basically any remaining losses that are left after the resistance, iron, and mechanical losses are calculated.

The largest culprit for stray losses are the result of harmonic energies that are generated when the motor operates under load.  The load affects the shaft power output, which is why it’s impossible to discuss in a general article such as this.  But basically, these losses are dissipated as currents in the windings, harmonic flux components in the iron parts, and leakage in the laminate core.

High Efficiency Motors

The maxon high efficiency motors get their name because they provide efficiencies in the 90 percentiles as opposed to the 50 to 60 percent range for most motors in their class.

The key to high-efficiency for maxon lies in the fact that they have no iron losses. maxon manufactures ironless core or coreless motors designed to the needs of their customers.  This means that the losses associated with the iron components have been eliminated.  By designing coreless and ironless core motors, maxon also eliminated the largest concentration of stray losses associated with motors, which are losses associated with leakage in the laminate core.

maxon incorporates the use of permanent magnets in their motors.  The ironless core brush motors have a permanent magnet, then a rotating winding, and then the housing, which closes the magnetic path.  With this configuration, there is no electricity going through the core of the motor (through the iron parts) to create a magnetic resonance.

The benefits of the ironless winding provides very specific advantages, which include: there is no magnetic detent and there are minimal electromagnetic interferences.  Part of the efficiency, though, is dictated by the type of magnet used in the design.  For example, the stronger magnets, such as NdFe will offer higher efficiencies.  Add to this, the fact that maxon includes graphite brushes and ball bearings in their brushed motors, customers gain long service life as well as high efficiency.

Click on the link below to view the Maxon Motor Product Family.

http://www.electromate.com/products/?partner=1072297493

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

 

Tags:  high efficiency motor, servo motor, BLDC motor, maxon, maxon motor, Electromate, brush servo motor


Electromate’s Website

Archives

Subscribe to this blog by entering your email address below.

Join 448 other followers

Hey there! Electromate is using Twitter.

Presentation Playlist

Flickr Photos

Tecnotion UXX06

Shimpo VRT Series

Shimpo STR Series

Posital Programmable Encoders

Posital Logo

Posital IXARC

Posital Fraba IXARC_Group

Merkle Korff Logo

Magnemotion Logo

Macron MGS-14H

More Photos

Follow

Get every new post delivered to your Inbox.

Join 448 other followers