February 23, 2016 Volume 12 Issue 08

Motion Control News & Products

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New AC hypoid inverter-duty gearmotors

Bodine Electric Company introduces 12 new AC inverter-duty hypoid hollow shaft gearmotors. These type 42R-25H2 and 42R-30H3 drives combine an all-new AC inverter-duty, 230/460-VAC motor with two hypoid gearheads. When used with an AC inverter (VFD) control, these units deliver maintenance-free and reliable high-torque output. They are ideal for conveyors, gates, packaging, and other industrial automation equipment that demands both high torque and low power consumption from the driving gearmotor.
Learn more.


Next-gen warehouse automation: Siemens, Universal Robots, and Zivid partner up

Universal Robots, Siemens, and Zivid have created a new solution combining UR's cobot arms with Siemens' SIMATIC Robot Pick AI software and Zivid's 3D sensors to create a deep-learning picking solution for warehouse automation and intra-logistics fulfillment. It works regardless of object shape, size, opacity, or transparency and is a significant leap in solving the complex challenges faced by the logistics and e-commerce sectors.
Read the full article.


Innovative DuoDrive gear and motor unit is UL/CSA certified

The DuoDrive integrated gear unit and motor from NORD DRIVE-SYSTEMS is a compact, high-efficiency solution engineered for users in the fields of intralogistics, pharmaceutical, and the food and beverage industries. This drive combines a IE5+ synchronous motor and single-stage helical gear unit into one compact housing with a smooth, easy-to-clean surface. It has a system efficiency up to 92% and is available in two case sizes with a power range of 0.5 to 4.0 hp.
Learn more.


BLDC flat motor with high output torque and speed reduction

Portescap's 60ECF brushless DC slotted flat motor is the newest frame size to join its flat motor portfolio. This 60-mm BLDC motor features a 38.2-mm body length and an outer-rotor slotted configuration with an open-body design, allowing it to deliver improved heat management in a compact package. Combined with Portescap gearheads, it delivers extremely high output torque and speed reduction. Available in both sensored and sensorless options. A great choice for applications such as electric grippers and exoskeletons, eVTOLs, and surgical robots.
Learn more and view all the specs.


Application story: Complete gearbox and coupling assembly for actuator system

Learn how GAM engineers not only sized and selected the appropriate gear reducers and couplings required to drive two ball screws in unison using a single motor, but how they also designed the mounting adapters necessary to complete the system. One-stop shopping eliminated unnecessary components and resulted in a 15% reduction in system cost.
Read this informative GAM blog.


Next-gen motor for pump and fan applications

The next evolution of the award-winning Aircore EC motor from Infinitum is a high-efficiency system designed to power commercial and industrial applications such as HVAC fans, pumps, and data centers with less energy consumption, reduced emissions, and reduced waste. It features an integrated variable frequency drive and delivers upward of 93% system efficiency, as well as class-leading power and torque density in a low-footprint package that is 20% lighter than the previous version. Four sizes available.
Learn more.


Telescoping linear actuators for space-constrained applications

Rollon's new TLS telescoping linear actuators enable long stroke lengths with minimal closed lengths, which is especially good for applications with minimal vertical clearance. These actuators integrate seamlessly into multi-axis systems and are available in two- or three-stage versions. Equipped with a built-in automated lubrication system, the TLS Series features a synchronized drive system, requiring only a single motor to achieve motion. Four sizes (100, 230, 280, and 360) with up to 3,000-mm stroke length.
Learn more.


Competitively priced long-stroke parallel gripper

The DHPL from Festo is a new generation of pneumatic long-stroke grippers that offers a host of advantages for high-load and high-torque applications. It is interchangeable with competitive long-stroke grippers and provides the added benefits of lighter weight, higher precision, and no maintenance. It is ideal for gripping larger items, including stacking boxes, gripping shaped parts, and keeping bags open. It has high repetition accuracy due to three rugged guide rods and a rack-and-pinion design.
Learn more.


Extend your range of motion: Controllers for mini motors

FAULHABER has added another extremely compact Motion Controller without housing to its product range. The new MC3603 controller is ideal for integration in equipment manufacturing and medical tech applications. With 36 V and 3 A (peak current 9 A), it covers the power range up to 100 W and is suitable for DC motors with encoder, brushless drives, or linear motors.
Learn more.


When is a frameless brushless DC motor the right choice?

Frameless BLDC motors fit easily into small, compact machines that require high precision, high torque, and high efficiency, such as robotic applications where a mix of low weight and inertia is critical. Learn from the experts at SDP/SI how these motors can replace heavier, less efficient hydraulic components by decreasing operating and maintenance costs. These motors are also more environmentally friendly than others.
View the video.


Tiny and smart: Step motor with closed-loop control

Nanotec's new PD1-C step motor features an integrated controller and absolute encoder with closed-loop control. With a flange size of merely 28 mm (NEMA 11), this compact motor reaches a max holding torque of 18 Ncm and a peak current of 3 A. Three motor versions are available: IP20 protection, IP65 protection, and a motor with open housing that can be modified with custom connectors. Ideal for applications with space constraints, effectively reducing both wiring complexity and installation costs.
Learn more.


Closed loop steppers drive new motion control applications

According to the motion experts at Performance Motion Devices, when it comes to step motors, the drive technique called closed loop stepper is making everything old new again and driving a burst of interest in the use of two-phase step motors. It's "winning back machine designers who may have relegated step motors to the category of low cost but low performance."
Read this informative Performance Motion Devices article.


Intelligent compact drives with extended fieldbus options

The intelligent PD6 compact drives from Nanotec are now available with Profinet and EtherNet/IP. They combine motor, controller, and encoder in a space-saving package. With its 80-mm flange and a rated power of 942 W, the PD6-EB is the most powerful brushless DC motor of this product family. The stepper motor version has an 86-mm flange (NEMA 34) and a holding torque up to 10 Nm. Features include acceleration feed forward and jerk-limited ramps. Reduced installation time and wiring make the PD6 series a highly profitable choice for machine tools, packaging machines, or conveyor belts.
Learn more.


FAULHABER IEP3 incremental encoder: Impressive accuracy through latest chip tech

With a diameter of just 8 mm, FAULHABER's new IEP3 incremental encoder is lightweight and compact yet still offers a resolution up to 10,000 lines per revolution -- made possible by the latest chip technology with high interpolation. The chip ensures a high positional accuracy of 0.3° m as well as high repeatability thanks to accuracy compensation. Application areas include telescopes, microscopes, lasers, and cameras; semiconductor production; robotics; and prosthetics.
Learn more.


Compact wheel drive for automated guided vehicles

Nanotec has introduced the WD42 compact wheel drive, a very short drive unit for automated guided vehicles (AGVs) and service robots. Each unit consists of a powerful BLDC motor, a high-torque planetary gearbox, a magnetic encoder, and an exchangeable wheel. All components are integrated directly at the wheel, which makes the drive only 103 mm long and reduces the number of moving parts and connections.
Learn more.


Mitsubishi Electric robot to manage 492 segment mirrors at new Hawaiian telescope

Mitsubishi Electric Corporation has completed a prototype robot for its segment-handling system (SHS) designed to replace the 492 segment mirrors that make up the huge primary mirror of the Thirty Meter Telescope (TMT) that is planned to be built on Mauna Kea in Hawaii.

The Thirty Meter Telescope shown in its enclosure. [Credit: TMT.org]

 

 

TMT, a collaboration among five countries (Japan, the United States, Canada, China, and India), will be used to explore the early galaxies and stars of the universe. Its primary mirror is composed of 492 hexagonal segment mirrors, each weighing around 250 kg (550 lb). Mitsubishi Electric has been developing the main structure of TMT, as well as the SHS that will be used to replace the segment mirrors as their aluminum-coated surfaces degrade. The robot, thanks to its automated functions, is expected to help maximize TMT's time available for observations.

Prototype robot of segment-handling system (SHS).

 

 

The robot is designed to recognize its position and attitude relative to those of the targeted segment mirror. The problem of sensing the segment mirrors, which have highly reflective surfaces, was resolved by projecting a checkered-flag pattern on them. Three newly developed vision sensors enable the robot to safely approach the mirrors based on accurate recognition of position and attitude.

The robot also incorporates force-control technology to compensate for any error when it approaches a mirror. The technology uses a force sensor to detect loads applied to a mirror with an accuracy within less than 1 kg during the robot's six degrees of freedom (6DoF) movements (forward/backward, up/down and left/right 3DoF, and rotations of each 3DoF). The robot's three independent arms each grasp a mirror with gentle handling, helping to equalize the mirror's considerable weight and compensate for any deformation caused by the heavy load. The original design of an installation shaft and force-control algorithm help to reduce the time needed to replace the segment mirrors by 60 percent.

An original parallel-link mechanism consisting of six links enables simultaneous long-stroke motion along the Z axis (up/down) and 6DoF movements. Long-stroke motion ensures adequate space between the primary mirror and the robot to transport the grasped segment mirror safely.

Artist rendering of the TMT. [Credit: TMT.org]

 

 

The SHS includes a main bridge that projects over the primary mirror when a segment mirror is replaced. The bridge rotates in a circumferential direction, and the robot moves forward and backward underneath the bridge.

Source: Mitsubishi Electric Corporation

Published February 2016

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