Smiths Interconnect’s newly re-launched HBB series of single pole high power 300A and 500A circular connectors offer a compact, lightweight and ruggedised heavy duty connector designed for use in all types of harsh environment applications. Now assembled by Aerco, they are available with low MOQs and short lead-times.
Available in a RoHs compliant Black Zinc Nickel finish, the HBB delivers a more efficient, higher current transmission in a more compact and lighter connector and with a superior endurance of 5000 mating cycles. Design SWaP goals of delivering high power within a small size and minimal weight interconnect solution are realised with 300A delivery implemented in a size 17 shell and 500A delivery in a size 21 shell. The robust aluminium shell is available in three different shell polarizations, fully sealed to IP67 ingress protection and featuring 360° EMI/RFI shielding via a customer serviceable conductive ‘O’ ring, which is fitted as standard to receptacles.
The HBB series is rated for surge/inrush currents of 6kA for the 300A and 10kA for the 500A for 1 sec, making it suitable for deployment in applications like induction motors and power converters.
The tactile ‘push mate’ mating provides confirmation of a full mate preventing “attached not locked” condition. The design facilitates the easy mating and un-mating with simple push to lock and 1/8 turn to unmate while in close proximity to neighbouring devices, supporting applications where higher density packing is required in space constrained environments. Safety protection includes a safety interlock last make, first break with finger protection on pin and socket contacts.
Compliant to the MIL-DTL-5015 specification for heavy-duty circular electrical connectors for harsh environments, the connectors feature the best electrical performance and high levels of shock and vibration immunity due to the use of Smiths Interconnect’s hyperboloid contact technology. The ultra-low resistance and smooth and light wiping action of the hyperboloid contacts results in low fretting fatigue/corrosion and long contact life with minimal degradation in performance. The hyperboloid contact design ensures this high degree of immunity to shock and vibration, guaranteeing electrical continuity in all circumstances. Contact resistance figures as low as 0.03mΩ keeps resistive losses and generated heat at a minimal, facilitating maximum transmission performance.
The plugs and receptacles are gender reversible, being available with either pin or socket contacts and they can be ordered with optional straight or right-angle back shells. Accessories include crimp lugs, heat shrink boots and additional O-rings.
Standard operational temperature range is -55°C to +150°C, voltage rating at sea level is 750vdc, and dielectric withstand voltage at sea level is 2250vdc.
By Tom Banner Reporter
THE best apprentices, schools, careers leads, training providers and employers have been celebrated as the finalists are revealed in the Worcestershire Apprenticeships Awards 2019.
28 of the county’s finest have been named as finalists for the Worcestershire Apprenticeships Awards 2019.
The finalists will join hundreds of businesses and guests at the awards finals from 6:30pm on Thursday, November 14 at the Tree Tops Pavilion, West Midland Safari Park, where the winners of each category will be announced.
Gary Woodman, Chief Executive of Worcestershire Local Enterprise Partnership, said: “I would like to congratulate all those who have been named as finalists at this year’s Worcestershire Apprenticeships Awards.
“Each year we see the very best of the county’s high-quality Apprenticeships recognised for their fantastic achievements, and I know that these young apprentices can go on to be the business leaders of the future.
“I’m sure that this year will be another popular reflection of our county’s dedicated schools, businesses and training providers.”
READ MORE: Worcestershire Careers Hub shortlisted for award
The Awards’ judges said the shortlist reflects ‘the increasing popularity of apprenticeships as the best route to earn as you learn’. Apprentices can earn between £77,000 to £117,000 more than those with similar qualifications and, with A-Level results and GCSE results recently published, the judges are expecting to see many more young people select apprenticeships as their preferred option.
The black-tie ceremony will be presented by the former British Paralympic swimmer and gold medallist, Marc Woods, who is set to welcome an audience of 350 people to the event.
The ceremony will recognise outstanding achievement in the two overall awards of Apprenticeship Employer of the Year, which is sponsored by Southco Manufacturing and Apprentice of the Year, sponsored by Yamazaki Mazak UK Ltd.
Cllr Marcus Hart, Cabinet Member with responsibility for Education and Skills at Worcestershire County Council, added: “Congratulations to everyone who has been shortlisted for this year’s awards ceremony. Apprenticeships continue to have a huge impact in Worcestershire by helping apprentices and their employers to grow and achieve their ambitions.”
Here is the full list of finalists:
School of the Year – sponsored by Worcestershire Children First
• Pershore High School – Pershore
• King Charles High School – Kidderminster
Intermediate Level Apprentice of the Year – sponsored by The Community Housing Group
• Rachel Layton – Give As You Live – Evesham
• Laura Barrett – Amada – Kidderminster
• Abigail Bradley – Sanctuary – Worcester
Advanced Level Apprentice of the Year – sponsored by OGL Computers Ltd
• Bethany Addis – Yamazaki Mazak UK Ltd – Worcester
• Katie Turner – Amada – Kidderminster
• Joe Hosie – Tim Whittington Farriery – Inkberrow
Higher Level Apprentice of the Year – sponsored by University of Worcester
• Thomas Smith – DRPG – Hartlebury
• Georgia Williams – Fresh Nous – Worcester
• Aidan Horton – Malvern Panalytical – Malvern
Small Apprenticeship Employer of the Year – sponsored by Herefordshire & Worcestershire Chamber of Commerce
• Give As You Live – Evesham
• The Priory Forge – Inkberrow
• Payara - Malvern
Medium Apprenticeship Employer of the Year
• Phosters (FM) Ltd – Kidderminster
• SJL Insurance Services – Worcester
• Heller Machine Tools - Redditch
Large Apprenticeship Employer of the Year – sponsored by Amada UK Ltd
• Open GI – Worcester
• Southco Manufacturing UK – Worcester
• Sanctuary Housing - Worcester
Careers Lead of the Year – supported by The Careers and Enterprise Company
• Claire Watson – Dyson Perrins - Malvern
• Jane Tozer – Prince Henry’s School - Evesham
• Louise Laxton – Trinity High School - Redditch
Apprenticeship Champion of the Year – sponsored by Fusion – Building Better Opportunities
• Ben Hyde – Sanctuary Group – Worcester
• Alison Young – Advance Trust – Evesham
Training Provider of the Year – sponsored by Sanctuary Group
• WGTA – Worcester
• TDM – Worcester
• LMPQ – Worcester
Worcestershire Apprentice of the Year sponsored by Southco Manufacturing
The Apprentice of the Year will be decided from winners of other awards.
Worcestershire Apprenticeship Employer of the Year sponsored by Yamazaki Mazak UK Ltd
The Apprenticeship Employer of the Year will be decided from winners of other awards.
New Combined Rotary Solution from Southco Provides Simplified Installation and Improved Industrial Design
By Design World Editor | September 3, 2019
Southco, Inc.,has recently expanded its line of rotary latching solutions with the launch of the R4-82 Rotary Latch with Paddle Actuator.
The newest addition to the R4 Rotary Latch series combines a compact rotary latch with a heavy duty, square paddle actuator, enabling direct actuation without the need for a connected cable. Available in steel with corrosion resistant zinc plating or black powder coat finishes, the R4-82 offers versatile key locking security. By combining both rotary latch and actuator into one solution, the R4-82 simplifies installation without sacrificing strength or performance.
With high ultimate load for heavy duty applications and options for thru hole or stud mounting, the R4-82 is an excellent solution for exterior applications that require robust performance. The R4-82 Rotary Latch includes an integrated bumper for reduced vibration, and is available with single or two-stage latching for enhanced safety and security.
Global Product Manager Cynthia Bart adds, “The R4-82 Rotary Latch with Paddle Actuator is a comprehensive solution that simplifies design and installation. The R4-82 builds off of our current rotary solutions, but features a reinvented paddle with a square shape that complements the modern exterior design of Industrial Machinery, Rail and Off-Highway applications.”
For more information about Southco’s complete line of R4 Rotary Latching solutions, please visit www.southco.com
In human anatomy, the shoulder presents one of the most challenging and complex physical problems for physicians and therapists. Shoulders and their intricate anatomical patterns also provide a unique test for developers of exoskeletons, who need to keep their units light and compact while incorporating an extensive range of movement.
Those were the challenges faced by Austin, Texas-based Harmonic Bionics. Building upon the fundamental research carried out in the Mechanical Engineering Department at The University of Texas, Harmonic Bionics designed an exoskeleton, called Harmony, that tracks the shoulder joint as well as the scapular movement of the shoulder girdle. The exoskeleton maximizes the range of motion of the human shoulder and the shoulder girdle while ensuring safety with physical and programmed interlocks. Actuator and controller technology allow Harmony to customize gravity compensation, assistance and impedance as needed for the patient.
Harmony is a treatment and therapy device that allows therapists to work with the patients to improve the functionality and healing from neuromuscular damage. It is especially helpful for victims of stroke. There are more than 800,000 new cases of stroke every year in the United States alone.
“Development of robust closed-loop torque-controlled actuators with high refresh rates was our biggest challenge,” said Rohit John Varghese, Harmonic Bionics’ Head of Product Development. “The design team built out all of the motor control and communication electronics in-house, and this has enabled the level of performance that the therapist who we work with require.”
“Our robotic solution frees the therapist to do what they do best and that is to interact with the human, which is an underrated but critical part of the recovery process,” Varghese added. “It creates an intimate dynamic between the therapist, the patient and the robot. The result is that survivors of stroke will get better faster and more effectively.”
Examining Harmonic Bionics’ exoskeletonThe project began in the ReNeu Robotics Lab at The University of Texas’ Cockrell School of Engineering in 2011 with funding from National Science Foundation and NASA. “The critical piece in Harmony is a novel shoulder mechanism that powers coordinated motions of five joints in the shoulder complex, which is the key to shoulder rehabilitation,” said Ashish Deshpande, director of the ReNeu Robotics Lab. Ensuring alignment between the exoskeleton and the patient is critical to prevent stress on the patient’s joints and protect them from injury.
Each side of the robot seamlessly moves the subject’s arm and shoulder through full natural range of motion, and it can be adjusted for people of all shapes and sizes. Harmonic Bionics used information from NASA databases to collect its anthropometric size data, based on which Harmony has been designed to adjust its size to fit more than 95 percent of the American population.
To be effective in a clinical setting, it is important for the exoskeleton to quickly and smoothly change its physical dimensions to align with these different body sizes. Oil-based lubrication for the linear bearings cause many issues, including the accumulation of dirt, which allows for bacteria to accumulate.
High-performance plasticsIn addition, due to the complexity of the robot, the resizing mechanisms need to be highly compact to allow room for the electronics and actuators. All linear bearing mechanisms need to be able to lock once in position to prevent unwanted changes in size.
Harmonic Bionics solved multiple issues by choosing linear bearings from igus, a Germany-based manufacturer of motion plastics. The company runs its North American operations out of Providence, R.I. The company’s products are lubrication- and maintenance-free. The bearings allow for smooth and bind-free size adjustment without lubrication, and size and weight reduction.
Harmony includes 6 of igus’ iglide J bearings, a versatile endurance performer that exhibits low wear against different shaft materials and low coefficients of friction in dry operation. They are cost-effective bearings when low-pressure loads are needed, and are frequently used in automation, printing, beverage technology and aerospace engineering.
A custom bearing housing compresses on a dryLin R liner, which reduced the size significantly compared to previous models of the exoskeleton. Compression from the housing locks shafts, eliminating the need for an additional shaft collar. dryLin R products are made with the iglide J materials, and are frequently used in packaging, 3D printing, and laboratories. The shoulder mechanism also includes DryLin R bearings, which operate dry and tolerate frequent cleanings.
DryLin-T rail guide systems manufactured by igus ensure high rigidity in the stand for the exoskeleton. The guides are extremely resistant to dirt and offer a low coefficient of friction and wear. They are also frequently used in machine building, machine tools, package handling and the woodworking industry.
Harmonic Bionics Harmony Exoskeleton. | Credit: Harmonic Bionics
Tackling the shoulderSeveral factors played into Harmonic’s decision to focus on the development of the exoskeleton for shoulders. First, the staggering incidences of strokes figures to rise over the next 10 years and has been increasing significantly.
“As medical care gets better, people live longer,” Deshpande said. “Also, trend lines show incidences of stroke among younger populations. The result is lost productivity and longer durations of suffering.”
Many therapy and assistive devices have focused on ambulation – improved functionality of the legs. “Thanks to the success of the ADA in the United States, a lot of that problem is being solved with wheelchair accessibility,” Deshpande said. But the next stage to enabling the basic activities of daily living, is helping stroke survivors and other people with neuromuscular diseases to become more independent and restore function to the upper body.
Finally, research on improving physical therapy techniques of the shoulders if greatly hindered by the highly subjective metrics that are used for assessment of recovery.
“The gold standard assessment scale for recovery is still a subjective assessment by the therapist on the scale of 1-5,” Varghese said. “It’s difficult to come up with an alternative form of measurement without a device like Harmony, especially for the shoulder. It’s such a complicated join. Not just the ball and socket, but the complex motion of the shoulder girdle as well. We must make sure the arm and the shoulder move in coordination. The exoskeleton re-teaches that coordination.”
Above Board Electronics:
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