Motion Control

Electromagnetic Actuator Decouples Linear and Rotary Motions

A lightweight module for rapid, accurate, and versatile positioning of semiconductor chips features a novel electromechanical actuator that can move objects both linearly and rotationally. The technology was developed by researchers at the A*STAR Singapore Institute of Manufacturing Technology (A*STAR SIMTech) and National University of Singapore (SIMTech-NUS) Joint Lab.

Posted in: INSIDER, Industrial Controls & Automation, Manufacturing & Prototyping, Mechanical Components, Motion Control, Positioning Equipment
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Soft “Vinebot” Excels at Search and Rescue

Inspired by natural organisms like vines that cover distance by growing, researchers at Stanford University have created a soft, tubular robot that lengthens to explore hard-to-reach areas. The vine-like robot can grow across long distances without moving its whole body, which could prove useful in search-and-rescue operations and medical applications.

Posted in: INSIDER, Motion Control, Robotics
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Motor Control Technology Boosts Performance of Remotely Piloted Aircraft

PC Krause and Associates
West Lafayette, IN
For more info click here

With support from the Air Force Small Business Innovation Research/Small Business Technology Transfer (SBIR/STTR) Program, PC Krause and Associates (PCKA) has developed a system that could meet a wide range of small aircraft electrical power and propulsion system needs. The company was aiming for its new modular motor drive system to fill the gap between existing commercial equipment and custom solutions at a cost that is viable for most remotely piloted aircraft (RPA) platforms.

Posted in: Application Briefs, Motion Control, Motors & Drives, Architecture, Computer software / hardware, Computer software and hardware, Fly-by-wire control systems, Architecture, Computer software / hardware, Computer software and hardware, Fly-by-wire control systems, Electric motors, Military aircraft, Unmanned aerial vehicles
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3D Printed Tensegrity Object Can Change Shape

A team of researchers from the Georgia Institute of Technology has developed a way to use 3D printers to create objects capable of shape change. The objects use tensegrity, a structural system of floating rods in compression and cables in continuous tension. The researchers fabricated the struts from shape memory polymers that unfold when heated. The technology could someday be used in applications ranging from space missions to biomedical devices.

Posted in: INSIDER, Manufacturing & Prototyping, Mechanical Components, Motion Control
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Self-Learning Robot Hands Adapt to Grasp Objects

A new grasp system with robotic hands works without previously knowing the characteristics of objects. The system, which learns by trial and error, was developed by researchers at Bielefeld University in Bielefeld, Germany. It features two hands that are based on human hands in terms of both shape and mobility. The robot brain for the hands must learn how everyday objects like pieces of fruit or tools can be distinguished based on their color or shape, as well as what matters when attempting to grasp the object; for example, a banana can be held, and a button can be pressed. The system learns to recognize such possibilities as characteristics, and constructs a model for interacting with and re-identifying the object.

Posted in: INSIDER, Motion Control, Positioning Equipment, Automation, Robotics
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Crawling Robot is Powered by Moisture

Using an off-the-shelf camera flash, researchers at Jilin University, China, turned an ordinary sheet of graphene oxide into a material that bends when exposed to moisture. They then used this material to make a spider-like crawler and claw robot that move in response to changing humidity, without the need for any external power.

Posted in: INSIDER, Materials, Motion Control, Robotics
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Advanced Tool Drive System (ATDS) Camera Positioning Mechanism (CPM)

Robotic servicing of a satellite in low earth orbit (LEO) or geosynchronous Earth orbit (GEO) requires advanced systems capable of meeting the harsh environments of space. To support this effort, the Goddard Space Flight Center Satellite Servicing Capabilities Office (SSCO) has developed a camera positioning mechanism that will be capable of viewing features on a client satellite. Application of the CPM technology would be in multiple areas of spaceflight requiring robotic servicing including space exploration, planetary science, Earth science, and manned spaceflight.

Posted in: Briefs, Mechanical Components, Motion Control, Motors & Drives, Positioning Equipment, Optics, Optics, Maintenance, Repair and Service Operations, Maintenance, repair, and service operations, Robotics, Satellites
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New Products: June 2017 Motion Design

Load Adaptor

Zero-Max (Plymouth, MN) introduced the Model 650 Overhung Load Adaptor that's designed to provide more radial and axial load support for hydraulic motors and pumps. The SAE B Model 650 is in the middle of the company's range of load adaptor sizes ranging from the smallest 200 SAE A mount model to the largest 1500 SAE F mount model. The new adaptor features a cast iron housing, 130,000 PSI stress-proof steel shaft, and heavy-duty spherical roller bearings. Designed for either face or foot mounting applications, it handles speeds up to 3500 RPM and is manufactured to ISO 9001:2008 quality standards. Overhung load adaptors protect the shaft seal of the motor, which can improve the operational life of the motor in harsh environment applications.

Posted in: Products, Motion Control
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Sizing and Selecting Linear Motion Systems

Virtually all manufacturing processes incorporate some type of linear motion. A common mistake that designers make when sizing and selecting linear motion systems is to overlook critical application requirements in the final system. This can lead to redesigns, and may also result in an over-engineered system that is costlier and less effective than desired. “LOSTPED” is a simple acronym that guides the designer in gathering the information needed to specify the appropriate linear motion components or modules in any given application.

Posted in: Articles, Motion Control, Systems engineering, Manufacturing equipment and machinery, Manufacturing processes
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Oil Sheer Clutch Cuts Downtime for Metal Stamping Press

In the metal stamping business, precision, repeatability, and uptime are key. But stamping accuracy suffers when improper tension on the coil feeders incorrectly supplies metal to the presses, resulting in off-spec parts and increased rejections. ART Technologies of Fairfield, OH, relies on an oil shear clutch brake to supply constant, reliable tension on the coil feeding to one of its 400-ton presses to produce the precision and repeatability it needs, with no downtime for maintenance or adjustment. When the plant is working 20 hours a day, that uptime is as critical as the tolerances it maintains.

Posted in: Application Briefs, Motion Control, Manufacturing equipment and machinery, Stamping, Parts
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