November 14, 2017 Volume 13 Issue 42

Motion Control News & Products

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DURApulse GS30 AC Drives from AutomationDirect

Automation-Direct has added new high-performance DURApulse GS30 drives that support several control modes including sensorless vector control, closed-loop flux vector control, and torque control in a compact package. The GS30 series expands the DURApulse family by adding internal tension control loop expanded parameter sets for greater versatility, as well as optional EtherCAT and single- or dual-port EtherNet/IP communication cards. GS30 drives support up to four independent induction motor parameter sets or control of a single AC permanent magnet motor. Sizes up to 3 hp for a 230-VAC single-phase input, 50 hp for a 230-VAC three-phase input, and 100 hp for a 460-VAC three-phase input. This series offers PID control, built-in PLC functionality, and STO capability typically found with more expensive high-performance AC drives.
Learn more.


Power steering systems for warehouse and autonomous vehicles

Allied Motion has introduced the electric power steering (EPS) series for steer-by-wire warehouse vehicles, autonomous AGVs, and similar material transport vehicles. This compact system includes a fully integrated motor, gearbox, controller, and optional output pinion. It is available in three frame sizes and 16 models to cover virtually any electric steering requirement in applications from small pallet lifters to AGVs/AGCs to multi-ton reach trucks. An optional, patent-pending feature, Turning Wheel Absolute Position Control, allows the controller to know the turning wheel position without external sensors.
Learn more.


New brushless motors maximize power density

Allied Motion Technologies has introduced the KinetiMax 95 High Power Drive (HPD), an outer-rotor brushless motor. This frameless motor is designed to maximize power density for its volume with a nominal output torque of 2 Nm at 2,300 RPM, resulting in 480 W of continuous output power. At only 37 mm axial length, this compact stator-rotor set is an ideal solution for applications such as material handling systems, AGVs, mobile robots, handheld power tools, and more.
Learn more.


Compact rod motors: Effective linear thrust generation

RDM-A Series rod motors from Akribis Systems are great for space-constrained applications requiring high motor forces and smooth linear motion. These compact motors feature a tubular design to distribute magnetic flux evenly along the circumference of the stator. They achieve continuous forces from 2.1 to 137.8 N and peak forces from 6.2 to 413.4 N. An air gap between the coil and magnet track enables non-contact axial linear movement and steady force production over the length of the stroke, and ironless construction ensures cog-free motion.
Learn more.


NORD's heavy-duty drive systems tackle tough industrial applications

Industrial gear units from NORD DRIVE-SYSTEMS are used for a variety of heavy-duty applications, providing high output torques and long service life with minimal maintenance. Combining high-efficiency motors and dynamic VFDs, users get high performance and smooth operation. Learn which drive systems are used for which real-world applications in industries including grain, cranes and hoists, wastewater, food and beverage, and bulk material handling. Good info here.
Read the full article.


XYZ nanopositioning stage for scanning and positioning in photonics and microscopy

PI's P-616 XYZ Piezo Nanoposition-ing Stage, based on a parallel-kinematic design, features a single, lightweight moving platform for all three axes. It offers high precision (sub-nanometer resolution) and dynamics in a compact package. Known as the NanoCube®, it is the smallest and lightest system with capacitive feedback, providing a 100-µm linear travel range in three degrees of freedom.
Learn more.


Robot with longer reach handles heavier payloads

The new RV-35/50/80FR robot series from Mitsubishi Electric Automation is ideal for handling large workpieces and heavy objects. This series has a max reach of almost 83 in. (2,100 mm) and a max payload over 175 lb (80 kg), so it's a great solution for palletizing and machine tending. These robots have a wide range of safety functions, including position and speed monitoring, and simplified installation and programming when paired with Mitsubishi Electric's MELFA Smart Plus card.
Learn more.


Linear servo press solutions from Tolomatic

Improve your pressing systems with electric linear actuators from Tolomatic. While hydraulic presses are a traditional choice in many manufacturing applications, a new generation of high-force Linear Servo Press technologies is now replacing high-maintenance hydraulics. They offer significant advantages in precision, programmability, energy efficiency, reliability, and flexibility.
Learn more.


Tech Tip: What is a stepper motor linear actuator?

What is a stepper motor linear actuator (SMLA), what types are available, and what can they do for your linear motion designs? Find out in this informative Thomson video. Learn how precision lead screws can be combined with a stepper motor in a number of ways, and discover which type can benefit your linear motion applications.
View the video.


Brakes for high-speed SCARA robots and more

Precise positioning of semi-conductor wafers during SCARA assembly operations requires instantaneous braking and holding power while minimizing heat in the system. The latest compact and slender Miki Pulley BXR-LE brake models provide the needed, perfectly controlled braking in a confined area of the system using minimal power. The braking response and holding power of this power-off engaged brake makes it ideal for this and other high-speed applications. The BXR-LE brake uses 24 VDC for a split second to overcome compression spring inertia to open the brake, then consumes only 7 VDC by utilizing the BEM power control module.
Learn more.


Automated piece-picking solution

The MI.RA/ OnePicker is a new and fully automated intelligent piece-picking solution from Comau. The easy-to-use, AI-backed, and collaborative solution reduces upstream process times, saving time, energy, and resources for warehouse, e-commerce, and other applications while increasing overall productivity and cost efficiency. Designed to autonomously pick miscellaneous objects from the same bin, it's a smart way to eliminate unsustainable sorting activities. Comes with Comau's Racer5 six-axis cobot.
Learn more.


Unlock cost savings: Revolutionary GAM GPL Gearbox

The GPL planetary gearbox, when paired with your preferred servo motor, delivers a solution that can match the fit and performance of direct drive motors while offering significant cost savings. With <6 arcsec backlash, GAM says this gearbox outperforms all other zero-backlash gearboxes on the market, making it the ideal choice for your applications. Discover how one company realized significant savings by replacing multiple direct drive motors with the GPL gearbox in a modular housing.
Read the GAM application story.


Bosch Rexroth new linear motor modules

Fast, compact, and precise. These properties characterize the new linear motor modules (LMM) with integrated screw-free direct drive from Bosch Rexroth. The axes are available in sizes 140, 180, and 220 mm and feature a zero-backlash direct drive. They complement the existing linear motion technology portfolio as a ready-to-install solution offering excellent value for money. The linear motor modules are available in all sizes with iron-core linear motors. Standard strokes are up to 1,540 mm and forces up to 2,400 N.
Learn all the specs and options.


OnRobot doubles payload capacity of its grippers

OnRobot's new 2FG14 and 3FG25 electrical grippers for heavy-duty, collaborative applications are now launching along with the new machine tending solution AutoPilot powered by D:PLOY, developed in collaboration with Ellison Technologies. The new three-fingered 3FG25 gripper provides users with 25 kg (55.1 lb) of payload power in a compact, all-electric, lightweight form, unlocking the potential of the latest cobots. Ideal for CNC machine tending, the 2FG14 is a lightweight parallel-finger gripper with a payload of 14 kg (30.8 lb). It doubles the payload and gripping force of OnRobot's popular 2FG7 gripper while also providing 30% more total stroke.
Learn more.


Linear guide system corrects misalignments

Bishop-Wisecarver's UtiliTrak® linear guide system includes vee rails for precision and open rails for misalignment float to provide smooth and accurate motion on inaccurate structures. Because precise parallelism is difficult to achieve, it is not uncommon for mounting surfaces to be slightly out of parallel. UtiliTrak's design compensates for mounting errors and does not require absolute parallelism for accurate operation. Genius.
Learn more.


NASA-developed drones provide one-of-a-kind capabilities

By Lori Keesey, NASA's Goddard Space Flight Center

NASA scientists, who are always on the hunt for new platforms to carry out their research, now may avail themselves of two agency-developed unmanned aerial systems, or UASs, that some say represent the future for drone aircraft.

Unlike most commercially available unmanned aircraft systems, Vanilla Aircraft's VA001 and Black Swift Technologies' S2 small Unmanned Aircraft System, or sUAS, purposely were designed for scientific investigations.

Both provide one-of-a-kind capabilities that represent a significant success for NASA's Small Business Innovative Research (SBIR) program that funded their development, said Geoff Bland, a research engineer at NASA's Wallops Flight Facility in Virginia.

"Our goal always is to advance state-of-the-art airborne capabilities and platforms tailored to the needs of our scientists," said Bland, who oversaw the aircrafts' development. "The SBIR program offered us an outstanding venue for engaging small businesses in our quest to develop new tools for gathering scientific data."

Now operational after months of development, the aircraft are offering the scientific community complementary, easy-to-use capabilities at a lower cost.

To Antarctica and back
Vanilla Aircraft's VA001 provides a case in point.

Smaller than NASA's Global Hawk unmanned aircraft, which requires a relatively large team to operate, the VA001 can carry 35 lb of payload and fly at 500 to 15,000 ft above sea level. Its primary attraction -- and the reason NASA funded its development through the SBIR program -- is its ability to carry out research over the most forbidding locations on Earth. It can cover thousands of square miles of treacherous terrain and handle bone-chilling temperatures of -40 deg F in a single flight.

The VA001 can carry 35 lb of payload, flying at 500 to 15,000 ft above sea level over some of the most forbidding locations on Earth. [Credits: Jeremy Novara/Vanilla Aircraft]

 

 

 

 

It runs on jet-grade fuel, which contains corrosion inhibitors and anti-icing additives crucial to operations in the Arctic or Antarctica. "It was an important part of the aircraft's design to fly under the toughest and coldest conditions," said Joe Famiglietti, the technology-infusion manager for Goddard's SBIR/Small Business Technology Transfer programs.

Since NASA's initial SBIR investment in the aircraft's development, the Virginia-based Vanilla Aircraft has garnered support from the U.S. Department of Defense (DoD), which funded a second prototype as well as test flights. In one non-stop test flight, the VA001 flew for 56 hr on a single tank of fuel, proving the aircraft could meet both NASA and DoD's needs, Bland said.

"The dream mission would be for the VA001 to leave the Wallops Flight Facility, fly over Antarctica, and then return after two days of mapping the changing ice. We could do this on demand for quick response to changing phenomena over the poles," Bland said.

Packed and ready to go
The Colorado-based Black Swift offers a completely different set of capabilities with its sUAS. The company originally developed the aircraft to fit inside a vehicle trunk, take off anywhere, and fly up to 90 min. over 705 acres with a full payload.

Swift Technologies' S2 small Unmanned Aircraft System is highly versatile and can be deployed virtually anywhere. The aircraft is being used by a Goddard scientist to map vegetation and climate dynamics. [Credits: Maciej Stachura/Black Swift]

 

 

 

 

"The company did more than just develop a unique aircraft," Famiglietti said. The company also integrated a specialized radiometer developed by the University of Colorado in a partnership with Black Swift. Its miniature antennas are used to detect proportions of energy reflected from the objects over which the sUAS flies.

Scientists can use the energy readings, along with other aircraft sensors, to differentiate between water contained within the soil or vegetation. With this data, NASA scientists can better understand soil-moisture levels and ground-truth NASA's Soil Moisture Active Passive satellite data that scientists use to monitor drought, predict flooding, and assist in crop productivity.

Because the sUAS has a modular "plug-and-fly" instrument capability and can be toted to virtually any location, its use is not restricted to soil-moisture measurements, however.

NASA scientist Miguel Román at the Goddard Space Flight Center in Maryland is now using the sUAS to map vegetation and climate dynamics under a pathfinding mission called MALIBU, short for the Multi Angle Imaging Bidirectional Reflectance Distribution Function sUAS.

In 2016, his team integrated MALIBU's two multispectral imagers onto the platform at different angles to precisely match the viewing geometry of polar-orbiting satellite images. It proved so effective that he and his team have acquired a second platform, Román said.

The aircraft is continually evolving, and will be able to observe volcanic plumes in the future, said Black Swift Founder and Chief Executive Officer Jack Elston, a MALIBU partner.

"Through NASA's SBIR program, we are enabling new types of science," Bland said. "These aircraft represent the future."

Published November 2017

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