May 09, 2023 Volume 19 Issue 18

Motion Control News & Products

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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.


Universal Robots emerges as preferred robotics platform for AI solutions at Automate 2024

At North America's largest automation show (Chicago, May 6-9), cobot pioneer Universal Robots will redefine the frontiers of physical AI, showcasing how the "ChatGPT moment for robots" has arrived in a wide range of applications. Automate attendees will also experience how Universal Robots' newest cobot models, the UR20 and UR30, automate tasks with increased payload, reach, and torque.
Learn more.


Multi-stage mini vacuum pumps: Max performance

Designed to meet the demanding needs of industrial users, the CMS M series mini vacuum pump from COVAL combines robustness, performance, and modularity, offering an optimum solution for applications requiring high suction flow rates, such as gripping porous parts, emptying tanks, or material handling when integrated into vacuum grippers. Thanks to their ultra-compact design and optimized multi-stage Venturi system, these pumps guarantee powerful suction flows up to 19.42 SCFM, while reducing compressed air consumption in a compact footprint.
Learn more.


Choosing a stepper motor: PM or hybrid?

Lin Engineering stepper motors are widely used in various applications that require precise control of motion, such as in robotics, 3D printing, CNC machines, and medical equipment. There are two main types of stepper motors: permanent magnet (PM) and hybrid. Learn the differences, advantages, and when to use one type or the other.
Read this informative Lin Engineering article.


Top Product: Integrated servo system is 20% smaller than standalone unit

Applied Motion Products has introduced the MDX+ series, a family of low-voltage servo systems that integrate a servo drive, motor, and encoder into one package. This all-in-one drive unit is an ideal solution for manufacturers in logistics, AGV, medical, semiconductor, the solar industries, and many others.
Read the full article.


Overhung load adaptors provide load support and contamination protection

Overhung load adaptors (OHLA) provide both overhung radial and axial load support to protect electrified mobile equipment motors from heavy application loads, extending the lifetime of the motor and alleviating the cost of downtime both from maintenance costs and loss of production. They seal out dirt, grime, and other contaminants too. Zero-Max OHLAs are available in an extensive offering of standard models (including Extra-Duty options) for typical applications or customized designs.
Learn more.


Why choose electric for linear actuators?

Tolomatic has been delivering a new type of linear motion technology that is giving hydraulics a run for its money. Learn the benefits of electric linear motion systems, the iceberg principle showing total cost of ownership, critical parameters of sizing, and conversion tips.
Get this informative e-book. (No registration required)


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.


OSU research shows how hackers can target smart meters to destabilize electricity grid

Researchers in the Oregon State University (OSU) College of Engineering have shown that a power transmission grid can be destabilized by hackers who manipulate smart meters to create an oscillation in electricity demand.

Their findings were published in IEEE Access.

The study is important because understanding where a grid's vulnerabilities lie and what they look like is the first step in designing protection mechanisms, says associate professor of electrical engineering and computer science Eduardo Cotilla-Sanchez, who led the project with graduate student Falah Alanazi.

A smart meter is a digital device that collects electricity usage data and sends it to a local utility through a telecommunications connection. The meters can help customers learn more about their electricity use, and they can also be used to remotely shut off customers' power, such as in the case of unpaid bills.

OSU Ph.D. student Thabiso Mabote, left, and College of Engineering faculty member Eduardo Cotilla-Sanchez put caution tape around a machine testbed. Machine testbeds are useful to validate machine dynamics in a time-domain simulation such as was used in the smart meter research. [Credit: Photo provided by Eduardo Cotilla-Sanchez]

 

 

 

 

Like circuit breakers in a household panel, power grid components can "trip" and shut off when demand, or load, is too high or problematic for some other reason. The result is load being passed on to other parts of the grid network, which may also shut down, creating the possibility of a domino effect that can lead to a blackout.

In this study, conducted with OSU College of Engineering associate professor Jinsub Kim, researchers used a model known as a time-domain grid protection simulator to demonstrate how causing load to vary back and forth in a regular pattern -- known as a load oscillation attack -- can compromise transmission.

"New technologies have been introduced to make our aging electricity infrastructure more efficient and more reliable," Cotilla-Sanchez said. "At the distribution level, upgrades have included communication systems, distribution automation, local control and protection systems, and advanced metering infrastructure. The bad news is, the upgrades also introduce new dimensions for attacking the power grid."

One of the types of attacks made possible by the new technologies involves hacking into the advanced metering infrastructure, often abbreviated as AMI, and controlling the smart meter switches to cause load oscillations.

"Imagine calling everyone you know and saying, 'OK, at 6 p.m. we are all going to turn the lights on," Cotilla-Sanchez said. "Even if you got a couple thousand people to do that, it would be unlikely to cause much instability because the grid is able to absorb fairly big changes in supply and demand -- for example solar panels at the end of the day do not produce electricity and we are able to anticipate and compensate for that.

"But if a person were to remotely coordinate a large number of smart meters to switch customers on and off at a particular frequency, that would be a problem."

That type of incident would start with someone performing reconnaissance by "poking" a couple of locations in a grid and using the information gained to estimate the grid's destabilizing oscillation frequency, he said. After determining which customer meters to turn on and off at that frequency -- less than 1 Hertz or cycle per second -- the attacker would be ready to launch an assault. What's more, comparatively speaking, an attack doesn't need to involve that many meters.

"We juxtaposed our work with related recent grid studies and found that a well-crafted attack can cause grid instability while involving less than 2% of the system's load," Cotilla-Sanchez said.

The findings, while unsettling, provide a jump-off point for grid operators to develop countermeasures, he added.

"For example, if they detect this type of oscillation on the load side, they could take lines A and B out of service, intentionally islanding the affected area and thus avoiding propagation of the instability to a broader area of the grid," he said. "Another solution, which could be complementary, might be to change the generation portfolio enough -- for example, curtail some wind generation while ramping up some hydro generation -- so the overall dynamic response is different to what the attack was designed toward, so the impact will be smaller and won't be enough to tip the system."

Either technique, he said, will require additional research and development to serve as an effective mechanism of protection, "but understanding the nature of possible attacks, I would say, is a good start."

Source: Oregon State University

Published May 2023

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