Application Story: Flat Servo Motors are used in Disability Assistive Robots

Unlike robots made for industrial applications, service robots require their own specifications directed specifically at a very particular subset of end users – human beings. It is Maxon Motor flat motors that enable such precise movement.

Jaco2 Robotic Arm

The Jaco2 robotic arm, created by Kinova Robotics, is a lightweight, quiet, and simple to use product for the service industry. This robotic arm is designed to be mounted to a wheelchair and offer assistance to the user. For this reason, weight was a crucial factor in order to avoid tipping over the wheelchair. The Jaco2 weights approximately 5.3 kg and moves around six degrees of freedom using six flat motors by Maxon motor. These six degrees of freedom are possible due to six joints that varying from a shoulder-type joint down to a functional wrist joint. The motors, along with the degrees of freedom, allow the robotic arm to manipulate various payloads at both full and mid-range extension. At full extension, the arm can accommodate up to 1.5 kg in payload. At mid-extension, the maximum payload increases to about 2.5 kg. These maximum payloads are adequate to suit the needs of most disabled people during the normal course of living.

Maxon Motor EC 45 Flat Motors

The first three joints of this robotic arm utilize Maxon EC 45 flat brushless DC motors with maximum continuous torque of up to 134 mNm. These small, powerful, and compact motors fit in a 70 watt package. In addition to their size, another critical factor was the fact that they generated less heat through motor operation.

The second three joints in the Jaco2 use 30 watt EC 45 flat motors from Maxon motor. These, too, were chosen due to their low heat dissipation, as the motors are inside the robotic arm itself. Additionally, their compact size was ideal due to the motors being located within the arm. Finally, the fingers of the robot are controlled using Maxon EC 32 15 watt motors.

For more information regarding Maxon flat brushless DC motors, read the full article here or contact Electromate today!

Electromate Powered Solutions service a wide range of manufacturing sectors that utilize automation technology to significantly enhance productivity and flexibility of various automation processes.

Tags:  Disability Assistive Robots, Flat Motor, Servo Motor, maxon, Electromate, Jaco2

Electromate Inc. Recognized as Canada’s Most Admired Corporate Cultures for 2020

For Release: 12:01am November 27, 2020

Canada’s Most Admired Corporate Cultures 2020 were announced today, and Electromate was recognized as a national winner in the Emerging Market category. This national program, sponsored by Waterstone Human Capital, recognizes best-in-class Canadian organizations for fostering high performance corporate cultures that help sustain a competitive advantage. 

Canada’s Most Admired Corporate Cultures 2020 list, and related stories, appeared in a Special Report on Friday November 27, 2020 in Canada’s National Newspaper, The National Post.

“Electromate is honored to be recognized as one of Canada’s Most Admired Corporate Cultures. Creating a great culture has been fundamental in driving our employee satisfaction and engagement which directly correlates to driving customer satisfaction and revenue”, says Warren Osak Founder and President of Electromate. “Electromate prides itself on its commitment to upholding the principles of Kaizen, or continuous improvement. This holds true for the professional and personal development of its employees which has greatly contributed to the creation of our great workplace culture embodying the Core Values of Integrity, Innovation, Enthusiasm, Continuous Learning and Customer Advocacy” says Warren Osak.

“At Waterstone we believe corporate culture drives performance and that it’s an organization’s greatest asset,” said Marty Parker, President and Chief Executive Officer of Waterstone Human Capital and Chair of Canada’s Most Admired Corporate Cultures Awards. “This year’s winning organizations have all demonstrated an outstanding commitment to corporate culture and to leveraging their culture as a competitive advantage. They all align to three key themes: they are focused on building a high-performance culture, committed to employee career development and growth, and focused on creating a workplace culture that supports physical and psychological safety for their team members.”

About Electromate Inc:

Electromate’s Core Purpose is to help Manufacturers compete globally by building better machines using differentiated Automation Technology. They specialize in Robotic and Mechatronic Solutions for the Industrial Automation marketplace.  Respected by customers as a premiere source for High Performance Automation and Motion Control Components & Systems, Electromate specializes in AC & DC Servo and Stepper Motors & Drives, Motion & Automation Controllers, Positioning Systems & Actuators, Feedback Devices, Gearing Products and HMI’s & Operator Displays, all supported via extensive product selection, just-in-time delivery, dedicated customer service and technical engineering support.

Follow Electromate on…

Website:     www.electromate.com  

LinkedIn:     https://www.linkedin.com/company/electromate/

Twitter:       @Electromate  

Facebook:   www.facebook.com/electromateindustrial/  

YouTube:    www.youtube.com/user/electromate

Blog:            electromate.wordpress.com/

About Waterstone Human Capital:

Founded in 2003, Waterstone Human Capital is a leading cultural talent management professional services firm for organizations across North America that see culture as their single greatest asset. Waterstone is also the founder of the Canada’s Most Admired Corporate Cultures and Canada’s Most Admired CEO programs. These national programs annually recognize best-in-class Canadian organizations and CEOs, for fostering cultures that enhance performance and help sustain a competitive advantage.

For more information please visit waterstonehc.com or canadasmostadmired.com

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

 

Tags:  Electromate, Culture, Waterstone Human Capital, Canada’s Most Admired Corporate Cultures 

Netzer Introduce New VLX-60 Absolute Encoder for Harsh Environments

The VLX-60 is a new member of the VLX series of Electric Encoders a product line based on Netzer Precision Motion Sensor proprietary technology. EE products are characterized by features that enable unparalleled performance including:

  • Low profile (<10 mm)
  • Hollow shaft (Stator / Rotor)
  • No bearings or other contact elements
  • High resolution and unparalleled precision
  • Very low weight
  • Holistic signal generation
  • Digital interfaces for absolute position
  • Extremely low profile & weight
  • Auto calibration option
  • Hollow floating shaft; no bearing or other contacts
  • High tolerance to temperature extremes, shock, moisture, EMI, RFI and magnetic fields

The holistic structure of the Electric Encoder™ makes it unique: Its output reading is the averaged outcome of the entire area of the rotor. This feature allows the EE a tolerant mechanical mounting and to deliver outstanding precision.

Due to the absence of components such as ball bearings, flexible couplers, glass discs, light sources and detectors along with very low power consumption enables the EE to deliver virtually failure-free performance in nearly all types of conditions.

The internally shielded, DC- operated EE includes an electric field generator, a field receiver, sinusoidal-shaped dielectric rotor, and processing electronics.

The EE output is a digital serial synchronous with absolute position single turn.

This combination of high precision, low profile and, low weight has made Netzer Precision encoders highly reliable and particularly well suited to a wide variety of industrial automation applications.

Information on the VLX-60 Absolute Encoder from Netzer can be viewed at:

https://www.electromate.com/pub/media/assets/catalog-library/pdfs/netzer-precision/VLX-60-V02.pdf

For further information, please contact:

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

Tags:  Netzer, VLX-60, Encoder, Absolute Encoder, Electric Encoder, Electromate

Application Story: Autonomous Intelligent Vehicles for Logistics

YLOG build autonomous robots that can be used to transport containers for logistics companies. These robots, or Autonomous Intelligent Vehicles (AiV) help reduce energy costs while maximizing the use of your space. Within these AiVs are Maxon drives, ensuring these robots move with precision.

YLOG was able to develop an automated small part warehouse that is not only incredibly intelligent, but environmentally friendly, using free moving vehicles (AiVs). These AiVs can be made in many different sizes and unique features allow up to 500 of them to be utilized in the same space at once.

Features of AiVs

These Autonomous Intelligent Vehicles have a number of features that lend them so adept for warehouse logistics. First and foremost, they can be used in both warehouse and transport logistics. They are also freely moving and able to detect each other, while observing road and traffic rules; these features reduce the risk of an accident. AiVs are able to complete tasks fully autonomously; a centralized unit tells the robots which containers it is supposed to retrieve or deposit and where to do so. From there, the robots steer themselves and complete the task.

These AiVs utilize supercapacitors rather than batteries as a means of power. This means that nearly 200 of the AiVs can be operated with the same energy as a single, conventional storage and retrieval system. Additionally, the AiVs are recharged via current while in operation, allowing for maximum use.

Maxon Motors

The Maxon motors and gearheads in AiVs are utilized to control the precision steering, indicating wheel positioning and the picking up/putting down motions. YLOG chose to utilize Maxon motors for a number of reasons. First, the electronically commutated EC motor has very good torque, a long service life, wide speed range, and high power. Additionally, the ceramic components in the gearheads improve the wear characteristics of crucial components. Overall, the highly individual and customized Maxon motors and gearheads have a longer lifespan, higher continuous and temporary torques, and higher input speeds.

Advantages of AiVs

As mentioned throughout, there are a number of advantages to utilizing AiVs in your logistics operations. First, there is a tremendous room for cost savings. Second, the AiVs allow you to maximize space within your warehouse, ensuring you are being most efficient. Lastly, their price-performance and energy consumption are tremendous.

For more information, view the full article here or contact Electromate today!

Electromate Powered Solutions service a wide range of manufacturing sectors that utilize automation technology to significantly enhance productivity and flexibility of various automation processes.

Tags:  AiV, maxon, servo motor, Electromate, Autonomous Intelligent Vehicles

 

Introducing the World’s Most Compact 1500 Watt Integrated Servo Motor

Birkerød, Denmark–JVL presents a new AC Servo Motor with built-in controller, Nano-PLC and direct AC mains supply with same capacity and length as traditional servo motors.

JVL, the European leader in the development of integrated servo and stepper motor technology, has now again developed a new and unique product in the field of integrated motor control.

New Compact Motor

The MAC1500 motor sets completely new standards for the performance and size of servo controls.  With a length of only 182mm for a 1500W motor with a torque of 4.78/14.3 Nm at 3000rpm, this MAC motor matches the size of traditional servo motors without built-in controllers with flange 130x130mm.  This has only been possible through the use of extremely compact motors and the development of electronics and mechanics that utilise the latest technologies and manufacturing methods.  So what about vibrations and temperature?  As with the other integrated servo motors in the range (50-4500W), both the motor and all electronic components have been specifically selected to withstand the rigorous demands required by industrial use.

Power Supply and Energy Savings

Powering this motor is easy since it only requires connection of the main voltage of 3x400VAC through the M23 connectors.  Control voltage for the encoder and microprocessor circuitry is 24VDC:  In an emergency-stop situation, where an approved relay has cut-off the main power, encoder position and other values are maintained by this control voltage.  Furthermore highly effective switching technology is used to ensure low heat generation resulting in appreciable energy savings.

Other Advantages

One of the big advantages of using the integrated MAC1500 motor is that you don’t need to install a separate servo driver or controller in a control cabinet. This gives you many subsequent advantages: Space savings in your control cabinet, saving of expensive motor and encoder cables, saving time (and money) for cabling, noise is minimized due to internal cabling and also installation errors between driver and motor are eliminated.  In addition, service is much easier, since the motor and controller can be replaced as a single integrated unit.  Hence downtime is minimized and production is maximized.

Information on the MAC1500 Integrated Servo Motors from JVL can be viewed at:

JVL MAC1500 Integrated Servo Motor Brochure

For further 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:  JVL, MAC1500, Servo Motor, Integrated Motor, Electromate

New Large, Hollow-Shaft Gear Unit from Harmonic Drive LLC

The new FBS-2UH gear unit series from Harmonic Drive® features a large, hollow shaft with a compact outer diameter.  The extra large hollow shaft is ideal for robots and machines requiring complex cabling to pass through the axis of rotation.  

The new gear unit design features Harmonic Drive’s “S” tooth profile for optimal tooth engagement resulting in high torque, high-torsional stiffness, long life and smooth rotation.

The FBS-2UH Series is available in two sizes (25, 32) and three ratios (30:1, 50:1, and 100:1).

Key features include:

  • Extra large hollow-shaft diameter is our largest yet for a standard product
  • Compact dimensions for use in robotics
  • Outer diameter and hollow bore optimized for design flexibility and performance
  • Zero Backlash
  • Accuracy <1 arc-min
  • High torsional stiffness
  • High efficiency
  • Smooth operation
  • Robust cross roller output bearing

Information on the FBS-2UH hollow-shaft gear unit can be viewed at:

https://www.electromate.com/pub/media/assets/catalog-library/pdfs/harmonic-drive/FBS_GearUnit.pdf

For further 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:  FBS-2UH, Strain Wave Gearing, Gear Unit, Gearbox, Harmonic Drive, Electromate

Understanding the Motor Constant in DC Motor Sizing

One of the most often overlooked parameters of direct current motors (both brush and brushless) is the Km or motor constant.  The motor constant (expressed as Km) defines the ability of a motor to transform electrical power into mechanical power and is a valuable tool for any project or application engineer looking to recommend a “best fit” replacement for an existing motor. Although the motor constant does not address thermal or other viscous losses, it is still useful for selecting a replacement motor that’s in the “ballpark.”  

The motor constant defines the ratio of the motor torque (mechanical power) to motor input power (electrical power).  Why is the motor constant important? Because, physical motor size can be deceiving!  Although it may be intuitive to think a larger motor will be more powerful than a smaller motor, this may not always be the case.  How can we then determine which is the more powerful motor?  By calculating and comparing the motor constant of both motors.  

Many times it is not possible to provide complete motor specifications to a vendor making it difficult, if not impossible, for the vendor to recommend a best fit alternative.  However if the customer can share the Kt and Rt of their existing motor, then by using the equation for calculating motor constant, a relatively good recommendation can be made.

The Motor Constant is calculated by the following equation (in English units): Km = Kt/√Rt – where Kt is the torque sensitivity (oz.-in./amp) and Rt is the terminal resistance (ohms)

Units for Km are oz.-in./√watts (in English units)

Summary: 

  • As can be seen from the above equation, the lower the motor’s resistance the higher the Km will be.
  • The motor constant (Km) is the only parameter you need to determine the capacity and efficiency of a motor.  It is basically the capacity of a motor to transform electrical power to mechanical power.  So when looking for the most efficient motor, instead of computing the efficiency of the motor simply look at the Km value.  For the same size motor the higher the Km, the more efficient the motor is.
  • The Km value is not really affected by the winding selection of a motor.  So in applications where multiple windings are available and the voltage is not yet selected, first select your motor by looking at the Km value then select a motor winding based on your supply voltage.  The motor sizing will stay the same because winding selection changes Kt and Ke equally.  
  • Back EMF (Ke or Kv) is proportional to Kt.  So doubling Kt will also double Ke.
  • Km is equal to Kt /√Rt. So if you know the motor constant (Km) and the motor resistance (Rt) you can easily derive the torque constant (Kt).

In summary, understanding the importance of the motor constant will greatly assist in the sizing and selection of a DC motor.

EDITORIAL CONTACT:

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

Tags:   Brush Servo Motor, Brushless Servo Motor, BLDC Motor, DC Motor, Servo Motor

 

Harmonic Drive Releases New CSF-ULW Ultra-Light Weight Gearhead

Introducing the new CSF-ULW ultra-light weight gearhead series from Harmonic Drive LLC.  This series features a newly engineered lightweight structure with an ultra-compact shape.

The CSF-ULW is a housed zero backlash Harmonic Drive® component gearset combined with a precision cross roller output bearing & flange.  The CSF-ULW is available in two sizes, with three reduction ratio’s per size.  The ULW series maintains the same performance standards as the popular CSF-2UH series.

Ideal for use on end of arm axes for small industrial and collaborative robots, the CSF-ULW is also well suited for general industrial machinery where weight is a critical factor.

Features include:

  • Zero Backlash
  • Accuracy <1 arc-min
  • High torsional stiffness
  • High efficiency
  • Smooth operation
  • Robust cross roller output bearing

Information on the CSF-ULW series gearhead from Harmonic Drive LLC can be viewed at:

https://www.electromate.com/pub/media/assets/catalog-library/pdfs/harmonic-drive/harmonic-drive-csf-ulw-brochure.pdf

For further 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:  CSF-ULW, Harmonic Drive, Strain Wave Gearing, Gearhead, Gearbox, Electromate

Industry Insights with Owen and Warren Osak, Founder and CEO of Electromate

 

Reprint of Drives & Control Solutions interview with Owen Hurst published at https://drivesandcontrols.ca/industry-insights/4204-industry-insights-with-owen-and-warren-osak-founder-and-ceo-of-electromate

In this issue of Industry Insights with Owen I had the opportunity to sit down with Warren Osak, founder and CEO of Electromate.

Speaking with Warren it is very clear he is a straight shooter with an abundance of knowledge, and passion for robotics, mechatronics and the general motion and motion control industry. Warren has a HBSc in biochemistry from the University of Toronto that provided him an ability to understand the complex calculations required to work with motion control. And understand it he did, authoring a text book in 1996 titled Motion Control Made Simple.

Warren first worked for several prominent motion control producers in the early 1980’s however at the time there was still some hesitancy among manufacturers about the future of motion control. However, Warren acting on suggestions put forward by some of his colleagues that recognized the value and future of the motion industry, founded Electromate in 1986 to serve the Canadian market. The goal was to ensure that these important products and growing market was advancing in Canada, and Warren has been working to ensure this ever since.

Digging deeper Warren provided some very rich and interesting information regarding integrated motion in Canada and about his company Electromate.

Electromate’s core message states that you provide ‘motion control at the speed of technology’. Do you ever feel that the technology is outpacing the industries ability to implement it?

No…certainly early adopters of the latest technology have a first mover advantage which makes their machines more competitive globally, but eventually the rising tide of the advancing technology raises the technology bar in all industries. The challenge Industry faces is finding the right talent to embrace and employ the new technology.

Once the technical people component is in place, Industry quickly embraces the latest technology, which by the way, is generally less expensive and has higher performance.

Electromate is not just a distributor but a solution provider that also offers turnkey onsite installation. Is this a trend among industry distributors and do you think we will see an increase in distributors offering full solution options?

Personally I don’t see a trend among distributors to ramp up their value-added services such as onsite installation. It’s specific to Distributors in certain technology spaces, such as Vision System Distributors who are usually required by their customers to provide a ‘proof of concept integrated solution’, and Robot Distributors who need to accessorize their product offering with safety systems and end effectors to provide a complete solution mandated by their customers.

The entry cost for a Distributor to get into the Integration Business is quite high which is a natural deterrent, plus Distributors run the risk of competing with their Integrator Customers which is never a good idea.

There has been some interesting advances among the use of roller-screw actuation devices, what advantages do these offer over more traditional methods of actuation?

Roller Screws (also called planetary roller screws) have very high force transmission capabilities since roller screw components are designed with a fine pitch thereby providing more points of contact and a larger contact radius resulting in less stress per point of contact. As a result, they can deliver very high force, operate at high speeds, are long-lasting and require little maintenance. The use of planetary roller screws allows engineers to specify electric actuators in applications that were once the sole domain of hydraulic cylinders.

The adoption of Roller Screws in high force linear motion applications has been slow to take off, but as we saw with the adoption of Electric Rod Style Actuators to displace Pneumatic solutions, it will take some time but will eventually become a universally acceptable preferred solution. Currently the total cost of ownership of a hydraulic cylinder is already higher than a Roller Screw Actuator, although the unit cost is not.

There has always been and will likely always be some level industry discussion surrounding product miniaturization and standardization, what benefits do you feel these offer?

We don’t hear much discussion surrounding miniaturization in the automation space primarily because the trend is an unstoppable force of nature. Moore’s Law has held true for over 50years. Simply put, companies that don’t miniaturize their products (or at least increase their power density in the same footprint) will see their market share dwindle quickly. Companies who generate 40% or more of their revenue from products that are over 6years old are at the greatest risk.

Standardization is another matter altogether. Here there is considerable industry discussion, and rightly so. New universally accepted Safety Standards, Open Source Communication and standardized Distributed Fieldbus Protocols have homogenized a once fragmented industry. Interoperability is a huge benefit to customers in all industries and is the primary driver of the fourth industrial revolution, also known as Industry 4.0.

Industry 4.0 is a name given to the current trend of automation and data exchange in manufacturing technologies. It includes cyber-physical systems, the Internet of things, cloud computing and cognitive computing. Without industry standardization, Industry 4.0 doesn’t exist.

What is the most revolutionary trend you are currently witnessing in the motion control industry?

Two revolutionary trends stand out. Innovative changes in Motors & Feedback Device construction and design.

There have been big advancements in the construction of servomotors. The physics of optimizing the magnetic flux generated from rare-earth magnet assemblies (and new production techniques) have leveraged improvements in motor designs. So, we’re seeing continued improvement in the torque density of servomotors well beyond what I once believed achievable.

In layman’s terms, the torque output one could get out of a NEMA-34-frame servomotor from eight or 10 years ago is now achievable with a NEMA-23-frame servomotor. In the same way, torque output of a NEMA 23 frame servomotor from eight to 10 years ago is now what today’s NEMA-17-frame motors can produce. So, motors are definitively more power dense than in the past — and in fact for a given package size, there’s 50 to 100% increase in torque output versus motors produced a decade years ago.

Sensor technologies seem to be advancing about twice as fast as other components used in motion-control systems. New developments for feedback devices also outnumber those for servo drives, rotary actuators, linear actuators, and motors — and I don’t know why that is. There’s certainly a lot of cutting-edge R&D in the world of feedback devices … so the pace of advancement in Encoder (especially inductive and capacitive types), Resolver, and Linear Variable Differential Transformer (LVDT) designs has just been astounding.

Further to the questions asked above Warren was happy to chat about other developments he sees that will alter or act as a disrupter to the industry. The primary point he noted is the rise in 3D printing. 3D printing is so far beyond making simple objects now, to the point where we are now seeing components being printed for motors and motion technology. As this continues to grow it is likely that we will see disruption in the primary production methods. 3D printing is something to keep a very close eye on over the next few years.

Connect with Warren on LinkedIn – https://www.linkedin.com/in/warrenosak/ 

Harmonic Drive Releases New HPN-RA Harmonic Planetary Right Angle Value Series Gearhead

The popular HPN Harmonic Planetary® value series from Harmonic Drive LLC is now available in a right angle configuration.  The HPN-RA provides a low cost solution without the need to compromise on quality or performance.

The HPN-RA Series features helical gears for High –Torque, quiet performance and long life. Backlash of <6 arc minutes (for single stage) is maintained for the life of the gear.  Large radial ball bearings support the output shaft for high load capacity.  HPN-RA Harmonic Planetary® gears are available with a smooth output shaft or a shaft with a key and tapped center hole.

The HPN-RA gearheads are available with short lead times and are designed to couple to any servo or stepper motor with our Quick Connect® mounting system.

Features include:

  • Spiral bevel right angle gear set with planetary output
  • Helical Gearing
  • Available in 5 Frame Sizes
  • Peak torque: 9Nm to 752Nm
  • Ratios, 3:1 to 50:1
  • High Efficiency
  • Backlash <6 arc-min (single stage) ,<9 arc-min (two stage)
  • Grease lubricated for life
  • Competitive price levels with short lead times
  • Shaft output available with key and center tapped hole or with center tapped hole

Information on the HPN-RA Harmonic Planetary Right Angle Gearhead from Harmonic Drive LLC can be viewed at:

https://www.electromate.com/pub/media/assets/catalog-library/pdfs/harmonic-drive/harmonic-drive-hpn-ra-brochure.pdf

For further 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:  HPN-RA, Harmonic Planetary, Right Angle Gearhead, Harmonic Drive, Electromate


Archives

Subscribe to this blog by entering your email address below.

Join 780 other followers

Hey there! Electromate is using Twitter.

Presentation Playlist

Flickr Photos

Blog Stats

  • 81,437 hits