Brushless DC flat motors – in parts.

BL Frameless DC motor + encoder 450px

maxon motor Australia’s new frameless DC motor and encoder set allows even further miniaturisation and integration. The new motors meet the increasing need for smaller robotic actuation by assembling individual parts directly into the robotic joint.

This is the new frameless brushless DC motor (BLDC) with a diameter of 45mm and an assembled depth of just 23.7mm, it has a continuous rating of 50W. 70W and 130W versions are also available. The frameless design is particularly suitable for processing machine or rotary stage manufacturers who need a large through bore to pass cabling or tubing. For positioning a high resolution magnetic encoder ring also with the same bore as the motor rotor is also supplied as components. The encoder ring is marked with the zero position to allow alignment with the motor zero commutation point in the application and is available in IP rated, absolute and incremental options. The combination gives a low profile large bore positioning system made up from standard parts with shorter lead times than specialty manufactured complete assemblies. The second advantage is for space saving in applications already containing joint actuation bearings or mounting systems there is no need for a second set within the motor.

Contact maxon motor Australia for assistance with brushless frameless DC motors. Ph: +61 2 9457 7477.

 

First maxon motor of its kind. Brushless DC motor with hall sensors, absolute encoder and incremental outputs

BLDC motor w hall sensors, absolute encoder +incremental outputs 450px

For fine motor position control across multiple generation brushless motor controller models, maxon motor Australia has supplied the first of its kind maxon EC-max brushless DC motor with three modes of feedback.

The new micromotor encoder 16 Easy Absolute 16mm x 9mm offers high resolution motor feedback from a tiny package. Additionally it offers 4,096 counts per turn incremental outputs with line driver channels and an index pulse. The Absolute output is available in the choice of Binary BiSS-C or Gray Symmetric SSI. The encoders use an interpolated hall sensor angle measurement system to generate the incremental quadrature output signals according to EIA-422 with 20mA maximum current draw and ESD protections built in. The angle value zero of the encoder is factory aligned with the BLDC motor zero point and the encoder is welded in place on the rear flange of the motor. When fitted with a multi pole brushless DC motor the encoder can still show the angle values zero once per mechanical turn and the angle zero is identical to the index position. The motor itself also contains three hall sensors for commutation purposes. An adaptor is available to convert the single ended clock and data signals of the absolute encoder into TIA/EIA RS422 compliant differential clock and data lines.

For special configurations of this unique feedback solution with other maxon motor types contact maxon motor Australia Sydney office on +61 2 9457 7477.

Tailor made brushless DC servomotor and planetary gearbox.

Small brushless DC motor and planetary gearbox 450px

This small brushless DC motor displays the advanced miniature and micro motor manufacturing techniques of maxon motor. So small are the details it is hard to capture the modifications and quality. The example pictured is a 10mm diameter DC motor and planetary gearbox fitted with an encoder for speed and position control.

What’s new? Sure there are a lot of small DC motors available now days however it’s in the detail that defines the difference between motors. Pictured is maxon motors newest planetary gearhead range that has been selected because of its stainless steel construction. The body and flange of the gearbox are one piece allowing the design engineers to not only create a mounting flange specific to the mounting footprint available in the application, it also allows maxon motor to orientate the gearhead flange with the motor cable exit. Enabling a shorter cable and neater cable looms. Laser welding of the motor flange is also a technology that is used to affix a customer specific drive pinion to the shaft. This gives the strongest possible power transmission coupling in these miniature sizes. maxon motor provide its customers with complete drawings and models for appraisal before samples are manufactured even for non-standard DC motor and gearhead assemblies like the shown example.

The new 10mm gearhead can supply torque levels up to 200mNm and can operate with input speeds up to 15,000rpm. Standard supply is with stainless steel ball bearings, it has efficiencies as high as 90% and weight as low as 6.7g.

Contact maxon motor Australia for further assistance Ph:+61 2 9457 7477.

 

Maxon release new product: flat BLDC motor with cables.

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Driven by customer demand, maxon release modifications to their flat / pancake motors.

maxon motor have altered the EC45 and EC90 flat BLDC motors. Now with the option to add cables with a pre-mounted connector by default and in combination with the integrated MILE encoder. The motors offered are the EC 45 flat in 50 & 70 W versions or 30 W by request. The EC 90 flat 160 W and 260 W is now available in cable version. The cable versions feature a much smaller footprint by eliminating excess PCB overhang from the side of the motor.

The flat design of the brushless DC flat motors makes them ideal for many applications, particularly robotics and industrial automation. Offering internal or external rotor motors, the flat BLDC motors are perfect for when space is limited being small and lightweight but with powerful torque. The simple and considered design means that production is largely automated, keeping prices as low as possible.

For more information contact maxon motor Australia tel. +61 2 9457 7477.

New powerhouse DC motor positioning controller.

EPOS 70-10 controller

maxon motor have developed their most powerful DC motor positioning controller to date.

With a maximum power output of 2.1kW maxon are pleased to announce the release of the EPOS4 70/15 DC motor positioning controller. The CANopen controller with an EtherCAT option is presented in a robust metal housing. Suitable for both brushless and brushed DC motors the positioning controller is a cut above the rest due to its ease of operation and broad operative scope. The various digital and analogue connections can be configured and the unit is suitable for use with a wide variety of feedback systems. It can also be integrated into various master systems. This new product and many more will be showcased at the Hannover Messe in Germany from 23-27 April. For more information please contact maxon motor Australia tel. +61 2 9457 7477.

Brushless DC motor with gear and holding brake.

This brushless DC motor is an example of the new small part combinations from maxon motor Australia that provide increased levels of power density. The unique assembly provides a blend of high speed, zero motor cogging and holding power.

The servo mechanism consists of a stainless steel high power BLDC (brushless DC) 120W 36V 22mm motor which is capable of maximum speeds up to 25,000 rpm and a stall torque rating of over 1Nm. It is fitted with a 22mm ceramic planetary gearhead that further increases the torque and brings the speed down to the application engineers required levels. For holding overhung loads or maintaining position in power cycles the rear of the motor has been re-engineered to accommodate a 0.1Nm holding brake. The brake force multiplied with the gearhead ratio gives holding forces well beyond nominal gearhead ratings. The brake opening reaction time is ≤6ms. This fast response allows the brake to be sequenced in dynamic positioning systems making the new combination particularly suitable for robotic rotary and linear actuators.

To facilitate the customisation of new products like this brushless servomechanism, maxon motor project engineers are now split into dedicated aerospace, medical, industrial and transportation teams. For assistance developing a customised application solution please contact maxon motor Australia on +61 2 9457 7477.

Fast brushless DC linear actuator.

Fast BLDC linear actuator 450px

New brushless DC linear actuator series from maxon motor.

This new combination linear actuator features a useful mixture of fast movements, high torque and holding ability. A precision ground metric thread and nut assembly can be customised to suit individual application mounting requirements. The unit pictured below has an external thread for mounting the load and an internal thread for traversing the spindle with a stainless steel and brass combination suiting the application running characteristics. Ceramic and plastic materials are also available. This is also the first such unit imported into Australia with the new EC-i 30mm brushless DC motor. The linear actuator is held in an amalgamated bearing block with radial and axial bearings contained inside a planetary gearhead end flange. This reduces the size and eliminates many alignment issues associated with standalone ball screws and bearing blocks. The new series features speeds of up to 386mm/s and linear forces up to 2700N. The linear actuation length and system operating voltages are all changeable and high resolution encoders enable positioning. The EC-i actuation system represents a cost reduction from exiting brushless solutions further widening the use of the devices into general engineering machinery and manufacturing equipment.

For more information contact maxon motor Australia tel. +61 2 9457 7477.

 

 

DC motor positioning controller with additional benefits.

EPOS4

There are additional connectivity options with maxon’s positioning controller, the EPOS4.

The addition of an expansion board now allows maxon positioning controller, the EPOS4, to be integrated into any EtherCAT network as a slave using the CoE standard (CAN application layer over EtherCAT). The EtherCAT card developed for this use can be combined with the EPOS4 controllers in a housing, as well as with all EPOS4 modules. The benefits widen the applications where compact positioning controllers are needed, for example where short cycle times are important in synchronized multi-axis systems.

EPOS4 controllers are suitable for controlling both brushed and brushless DC motors. They are known for their high power density and excellent value for money. For more information about maxon’s EPOS controllers, please visit epos.maxonmotor.com or tel. +61 2 9457 7477.

Powerful zero backlash servo gear motor.

Powerful zero backlash DC motor

Brushless DC (BLDC) servomotor, zero backlash gearhead, holding brake and high resolution encoder combination drive offers high torque levels without compromising positioning accuracy.

This servo motor and gearhead combination recently released by maxon motor Australia can produce 364Nm with a peak torque rating at the output of 686Nm. Fitted with both an encoder and a holding brake inside the IP rated motor’s rear enclosure the combination can move heavy loads into position and make sure they stay there. The high acceleration of the brushless DC motor with top grade Neodymium magnets enables a zero to 2600rpm speed change in under 4ms. Being both brushless DC and also slotless gives the motor zero cogging or position detent for smooth position transitions and low speed performance. The solid construction and sealed nature of the motor drive components makes it suitable for mining, food, process control and manufacturing environments. Customisation of the motor and gearhead features is possible and both 24 and 48V DC supplies can be used. The unit is compatible with standard Servoamplifier and position controllers from maxon motor.

For more information contact maxon motor Australia Tel. +61 2 9457 7477.

Brisbane Boys College creating robots and beating experts at their own game

Soccer robot 1 450px

Created by Year 12 students from Brisbane are soccer-playing machines that achieved first place at famed international competition, RoboCup.

Brisbane Boy’s College (BBC) has a dedicated robotics program with teams participating in regional, state, national, Asia-Pacific and international Robotic competitions. In 2017, five participants from BBC formed a team and visited Nagoya, Japan for the annual RoboCup competition. And they beat the best of the best with their soccer-playing robot.

Weighing just over 1 kg, the robots had to be remotely operated meaning everything had to be programmed and no human touch was allowed. To win the world superteam champions lightweight category for under-19s, the boys’ robots acted as either goalie or striker against, and with, machines from other countries. The Chinese team had the fastest robots and received the highest score for gameplay but Australia won on accuracy and coding. Maxon DCX motors and gearheads are in the wheels of the robot. Maxon motor Australia is a proud supporter of BBC.

Team captain and ex-soccer player, Lachlan Grant, said the programming and circuit board building was extremely complex, and it was nice to see their win make news for the school, traditionally renowned for rugby and tennis. Master in Charge Colin Noy said the boys’ skills were so good the school gets former students, now at university, to coach instead of teachers. “In fact, one European university lecturer attending the championships told us the programming level of our students was higher than most of his Masters students,” Mr Noy said.

“Our robots were to the most responsive and most accurate in the competition.”

To watch the BBC robots at play click on this YouTube link. For more information on DC motors in robotic applications contact maxon motor Australia tel. +61 2 9457 7477.