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Exoskeleton joint actuator

maxon motor have developed the Exoskeleton Drive GEN.1 for use in hip and knee exoskeletons.

The global Exoskeleton market is growing in both market share and technological developments at a rapid rate each year. Maxon motor have several global customers we have worked with to develop brushless DC motor solutions for use in robotic limbs.

Available from the beginning of October 2017 is a complete joint actuation unit consisting of a pancake brushless DC motor (EC90 flat) with inertia optimised rotor, Internal high resolution 4096 MILE Encoder, planetary gearhead with absolute encoder and EPOS4 position controller with CAN and RS232 interface. Fitting the 17bit SSI absolute encoder directly at the joint rotation to a degree will negate the effect of gearhead backlash giving designers increased positioning accuracy. The unit will deliver 54Nm of continuous torque and 120Nm on a 20% duty cycle. The system can be operated on supplies between 10 and 50V DC and the actuation speed is up to 22rpm. Drawings and pricing are now available contact maxon motor Australia for further information.

Tel. +61 2 9457 7477.

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A DC motor kit supplied in parts for robotic joint applications.

Maxon’s brushless frameless DC motors are designed for applications with space and weight constraints.

DC motors don’t always fit seamlessly into applications. Particularly in robotic joints, the space and weight constraints can take off the shelf DC motors past their threshold. These motors must also offer high torque yet be lightweight to meet the needs of the application’s dynamic movements. For this growing market, maxon motor developed a brushless flat motor as a frameless kit. The rotor and stator are provided separately, without bearings and motor shaft and connected when these components are put together. This offering brings the best of both worlds: high torque density with the smallest dimension possible. With outer diameters of only 43 to 90 mm, the brushless frameless flat motors are particularly compact. Designed as external rotor motors, they offer plenty of space inside for cable glands. For easy control these are delivered with Hall sensors.

The benefit of the brushless frameless motor kits are low cogging torque, high overload capacity, high torques through the multi-pole external rotor, space for cable glands, supplied equipped with Hall sensors and thermal sensors, and speaking from our own experience; higher levels of integration into robotic joint applications.

For more information on robotic applications or maxons brushless frameless motor kit, please contact maxon motor Australia tel. +61 2 9457 7477.

Roboy 2.0

A complete relaunch of the tendon controlled soft Robot, Roboy, is planned for 2018.

Reported here in 2013, Roboy was the first-of-its-kind Humanoid Robot developed by the University of Zurich. What set Roboy apart was the tendon-operated “soft” robotic features. As a main project partner, maxon motor supplied 48 brushless DC motors, gearheads and controllers that enable Roboy to move in a precise manner. Roboy now lives permanently at the Technical University in Munich where development is focused on enhancing A I. This is where the concept of Roboy 2.0 was born, utilising Roboy as a foundation to create robots that not only move like people but will think like people. At this stage Roboy is unable to stand or walk. Roboy 2.0 will be a complete relaunch and the new version will be able to stand, thanks to development of the legs and components like software, DC motors and technology, it is hoped that by 2018 Roboy 2.0 will stand on his own two feet and interact with us.

For more information please contact +61 2 9457 7477.

Play foosball against a robot!

A robot operates the opposing player rods on a Foosball table and has won against human players.

The Swiss Federal Institute of Technology (EPFL) has developed a foosball table with autonomously operated robotic rods. The table has a transparent playing surface with a camera that locates the ball by taking up to 300 images per second. These images are immediately evaluated and sent to control the rods, which are powered by maxon EC-4 pole DC brushless motors with gearheads and motor controllers. The rods stop the ball and aim for the goals. The students aim to make the robot even more intelligent by programming the robot to analyse opponents players, find gaps in the defence and predict the ball’s trajectory.

For more information on DC motor technology please contact maxon motor Australia on tel. 61 2 9457 7477.

Maxon motor posts record revenues.

Throughout 2016 maxon invested significantly in expanding its facilities, bringing a large number of new technologies & innovations to market and expanded on their market leading position.

Sachseln/Switzerland – The maxon motor group further increased its revenues in 2016. Compared with the previous year, revenues grew by 5% to a new record level of CHF 422.5 million (from CHF 402.5 million in the previous year). The number of employees rose to 2,500 and for the first time in company history, maxon employs more people abroad than in Switzerland. The highest revenues were achieved in medical technology (43% market share), followed by industrial automation & robotics (26%) and aerospace industries (6.5%). Investment in R&D rose to CHF 28.5 million in 2016 (up from 27.1 million).

Maxon is increasingly becoming a specialist in mechatronics and systems, launching the first fully sterilisable drive system this year. Drive combination units consisting of brushless DC motor, gearhead and sensor are designed to withstand 1000 autoclave cycles. Maxon’s new DC motor controllers also stand up to extreme ambient conditions. The electronics are protected against contaminants and corrosion by a polymer coating. In addition, the device is highly resistant against vibrations and shocks.

For the e-bike market, maxon motor developed a new S-Peledec motor with a 500 Wh battery and intuitive operation for urban applications. The bike reaches speeds of up to 45 km/h and the device stands out because it can convert any regular bicycle into an e-bike. maxon is also active in the field of autonomous delivery robots. This is a market where the energy-efficient and lightweight drive systems by maxon are in particularly high demand.

For more information on DC motors and accessories please contact maxon motor Australia tel +61 2 9457 7477.

Brushless flat DC motors going to Mars

Brushless motors from maxon motor are again being used by NASA for the Mars 2020 rover.

For critical tasks you need the best quality. The Jet Propulsion Laboratory have selected nine brushless flat motors from maxon motor for the rover which they intend will take soil samples and seal them in containers for future transport to Earth. Various motion applications are performed. Sample tube holding, the robotic arm, container handling, sample gathering and container sealing. 32mm diameter and 20mm diameter flat brushless motors have been combined with heavy duty 22mm planetary gearheads and modified specifically for the Mars mission in close collaboration with JPL for the difficult conditions experienced with descent, landing, sandstorms and the -130 to +70 degree temperatures.

For information on DC motors and gearheads used in applications operating in harsh environments please contact maxon motor Australia tel. +61 2 9457 7477.

World First: robotic system for eye surgeries

Dutch company Preceyes developed a world first robotic system for retina disorders, using haptic feedback and maxon DC motors.

Detached retina surgery requires precision to an nth degree where the stability of human hands are no match compared to robotic systems. This is why Dutch company, Preceyes, developed a completely new robotic system for eye surgery. Especially designed for the treatment of retina disorders, the robotic device improves precision up to 20 times more than a Surgeons hand, making operations once deemed impossible due to lack of precision now being successfully performed.

Surgeons operate via a joystick while looking through a microscope. The joystick controls a robotic arm, controlled by maxon DC motors, assisting surgery in millimeter increments. A haptic feedback function allows the surgeon to see and feel their actions and the robotic system supports quick retooling. This is an important factor because it reduces operation time bringing a multitude of benefits to the patient.

For more information on DC motors and drive systems in robotic medical applications, please contact maxon motor Australia tel. +61 2 9457 7477.

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The new robotic system is used in surgery to treat disorders of the retina. © Preceyes

DC motors in blood analysis machines

High-tech machines analyse human blood samples and detect coagulation disorders. Maxon motor France supplies the DC drives as well as builds entire conveyor modules especially for a customer.

Analysis devices in laboratories and hospitals run 24/7, autonomously pipetting samples to deliver quick results. Such industrial automation equipment must work with high accuracy and reliability. This in turn places high demands on all components of the machines.

Stago is a French company that specialises in analysis instruments for haemostasis diagnostics (for testing blood clotting). Maxon DC motors are found in Stago’s StarMax machine. A fully automated analysis system, the StarMax is equipped with a three-axes robot with space for 215 samples and 1,000 test containers. Working autonomously the machine checks results, compares them and monitors the processes.

There are several varieties of maxon’s brushed A-max DC motor combined with planetary gearheads, that are used for the movements of the rack. With varying diameters between 16 and 26mm, these DC motors were selected for being highly dynamic and easy to control. The DC motors have an ironless rotor and are manufactured autonomously giving them an attractive price-performance ratio.

For more information on applications involving mechatronics and automation please contact maxon motor Australia tel. +61 2 9457 7477.

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Maxon’s A-max DC motor and GP22 planetary gearhead © maxon motor

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The analysis system STAR Max. © Stago

 

 

Mechatronic drive system in elevator doors

Maxon brushless DC motors and encoders drive lift doors open and closed.

Schindler is a well-known manufacturer of elevators and lifts, moving more than one billion people every day. When we take the lift, we press the button, the cab arrives, we enter and disembark at the desired floor. What is a simple event has alot of technology in the undertaking – in the elevator shaft, motor chamber, control box and in the lift compartment itself.

A motor installed in the cab opens and closes both the doors of the cab and the doors at each particular floor. The requirements of the motor are very specific: small yet powerful, reliable, energy-saving and intelligent. Maxon developed two Door Drives alongside Schindler, using a brushless DC motor with a diameter of 90 millimeters, a MILE encoder combined with the motor and a customised EPOS2 positioning controller. With two power levels, the more powerful version uses a belt drive and is able to move doors weighing up to 400 kilograms. The smaller and latest version is more compact and moves doors weighing up to 120 kilograms.

Encased in a housing, the Door Drive can be mounted directly onto the lift cab. And this is where its real work starts. The ability to adapt to the many different types of elevators, with differently sized cabs, different materials and, depending on the country, different safety standards. After a calibration procedure, the controller of the Door Drive detects the size and weight of the doors, autonomously calculates the optimal parameters corrects them if necessary and drives the doors open and closed.

For more information on applications where DC motor technology needs to be powerful, compact, reliable and intelligent please contact maxon motor Australia on tel. 61 2 9457 7477.

Mechatronic system: The drive solution for elevator doors consists of a brushless flat DC motor (90 mm diameter), an integrated MILE encoder and a customer-specific positioning controller based on the EPOS 2 series. © maxon motor

 

An Industrial Robotic Arm small enough to fit in the palm of your hand.

A Canadian company has developed a small robotic arm for industrial applications using brushless pancake motors, zero-backlash gearheads and encoders from maxon.

Introducing the Meca500: An Industrial Robotic Arm that is half the size of a regular industrial robot. Made by Mecademic in Canada and featuring brushless flat motors from maxon, the Arm has six degrees of freedom, weighs five kilos and spans a base around the size of your palm. With a repeatability of 0.005 millimeters, that is, 20 times less thicker than an A4 piece of paper, the Mecas500 has a load capacity of 500 grams.

Maxon’s brushless pancake motors were selected for this application. The EC45 flat brushless motors are renowned for their compact design, long lifespan, top quality and high torque. In the Meca500, the DC motors are combined with zero-backlash gearheads and high-resolution encoders for precise movements. The controller is integrated into the motor and gearhead combination, saving even more space and simplifying the drive operation.

If you would like application assistance or for more information please contact maxon motor Australia tel. +61 2 9457 7477.

EC_Flat_Totale_450px           Meca500-Base-ON_450px

maxon motor’s brushless pancake motors are available in a variety of sizes and are perfectly suited for robotic applications. The Meca500 has six degrees of freedom and weighs only five kilograms. The controller is integrated into the base.
Images ©Mecademic and maxon motor
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