September 09, 2014 Volume 10 Issue 34

Motion Control News & Products

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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.


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.


Wanted by DARPA: Partners to create robotic satellite-servicing capabilities

An increasing number of expensive, mission-critical satellites are launched every year into geostationary Earth orbit (GEO), approximately 22,000 miles (36,000 km) above the Earth. Unlike objects in low Earth orbit (LEO), such as the Hubble Space Telescope, satellites in GEO are essentially unreachable with current technology. As a result, these satellites are designed to operate without any upgrades or repairs for their entire lifespan -- a methodology that demands increased size, complexity, and cost. The ability to safely and cooperatively interact with satellites in GEO would immediately revolutionize military and commercial space operations alike, lowering satellite construction and deployment costs and improving satellite lifespan, resilience, and reliability.

To expedite these potential benefits, the Defense Advanced Research Projects Agency (DARPA) is considering a flight demonstration to introduce DARPA-developed space robotics capabilities in GEO within the next five years. Because the majority of satellites in GEO are commercially owned, DARPA is particularly interested in establishing a public-private partnership that would make cooperative robotic servicing available to both military and commercial GEO satellite owners on a fee-for-service basis. The partnership would help develop near-term technical capabilities and significantly contribute toward the creation of a sustainable, commercially owned-and-operated space robotics enterprise. DARPA has issued a Request for Information (RFI) (http://go.usa.gov/yBdJ) seeking technical, security and business insights to support the agency's pursuit of these goals.

"We're asking the space community to think hard about how they want the future of space operations to look and how GEO robotics could help," said Gordon Roesler, DARPA program manager. "Their insights are essential as we take the first concrete steps toward viable satellite-servicing capabilities in GEO. If we're successful, we will significantly accelerate development of a capacity to maximize the utility of current space infrastructure and enhance the capabilities of future systems."

The RFI invites input in two primary areas:

1. Technical characteristics for a robotic servicer that would integrate DARPA-developed space robotics technologies into commercially available spacecraft designed for GEO. Building on DARPA's Phoenix program and more than a decade of the agency's other investments in space robotics, the jointly developed GEO robotic servicer would support a variety of multi-year on-orbit missions, including:

  • Cooperative inspection of functional spacecraft that may have experienced anomalies while operating in GEO;
  • Cooperative correction of mechanical problems, such as solar array and antenna deployment malfunctions; and
  • Cooperative assistance with orbit change maneuvers, including relocation or transfer to disposal orbit.

2. Business arrangements and practices that would best facilitate a commercial spacecraft servicing enterprise that is long-lived and self-sustaining, and would achieve the greatest value for U.S. national and economic security. DARPA envisions that a non-traditional acquisition instrument may be appropriate to establish this partnership. DARPA wishes to consider creative solutions in this domain and thus desires industry input for structuring the commercial partnership solicitation.

"Creating a public-private partnership is an innovative way to ensure that GEO robotic servicing gets community buy-in to succeed long term," Roesler said. Moreover, he said, a public-private partnership would support the White House's National Security Space Strategy of 2011, which states, "Strategic partnerships with commercial firms will be pursued in areas that both stabilize costs and improve the resilience of space architectures on which we rely."

DARPA is aware of current industry-led servicing development efforts, particularly those aiming to enable on-orbit refueling and satellite life extension. The agency welcomes information on possible early-opportunity collaborations or partnerships involving such missions, including technology demonstration and maturation, data sharing, or testing.

DARPA anticipates that responders may fall into one of three general categories: hardware/software developers (e.g., spacecraft providers and ground system developers); satellite servicing organizations; and service clients, such as commercial communications satellite operators. Responders should describe how their organizational capabilities and past experience with any of the following areas would contribute to the success of the program:

  • Spacecraft development, integration, testing, and on-orbit operations;
  • On-orbit servicing technology development and/or business case analysis;
  • Robotics technologies, including hardware (sensors, actuators, etc.) and software (control, teleoperations, etc.); and/or
  • Satellite fleet ownership, operation, and management.

Responses are due November 3, 2014, to DARPA-SN-14-51@darpa.mil by 12:00 PM Eastern Time. All technical and administrative correspondence and questions regarding this announcement and how to respond should be sent to that same email address.

Source: DARPA

Published September 2014

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