Kollaborierende Roboter wie YuMi von ABB arbeiten in nächster Nähe des Menschen. Die Herausforderungen sind dabei unter anderem: Die Sicherheit des Systems und die kostengünstige Replizierung menschlicher Eigenschaften.
ABB has developed a collaborative, dual-arm, small parts assembly robot solution that includes flexible hands, parts feeding systems, camera-based part location and state-of-the-art robot control.
YuMi is designed for a new era of automation, for example in small parts assembly, where people and robots work side by side on the same tasks. Safety is built into the functionality of the robot itself. YuMi removes the barriers to collaboration by making fencing and cages a thing of the past. ABB dual-arm robots have accurate vision, dexterous grippers, sensitiveforce control feedback, flexible software and built-in safety features that collectively allow for programming through teaching rather than coding.
While YuMi was specifically designed to meet the flexible and agile production needs required in the consumer electronics industry, it has equal application in any small parts assembly environment thanks to its dual arms, flexible hands, universal parts feeding system, camera-based part location, lead-through programming, and state-of-the-art precise motion control. At first glance, processes on manual assembly lines might seem relatively simple to automate, but in reality it is not so easy to replicate human abilities. With YuMi, the challenge was to determine how to replicate all of these human attributes in a way that was cost-effective, essentially recreating abilities necessary to be at least as safe as humans, yet still able to provide the substantial benefits of automation.
At its core, YuMi has the DNA of safety. Much like a human arm has a skeleton covered with muscles that provide padding, YuMi has a lightweight yet rigid magnesium skeleton covered with a floating plastic casing wrapped in soft padding. This arrangement absorbs the force of any unexpected impacts to a very high degree. Like the human arm, YuMi has no pinch points so that ancillary parts cannot be crushed between two opposing surfaces as the axes open and close. If YuMi senses an unexpected impact, such as a collision with a co-worker, it can pause its motion within milliseconds, and the motion can be restarted again as easily as pressing play on a remote control. Additionally, the robot can rapidly diagnose changes in its environment and, if necessary, register the overload, shutting down YuMi‘s motion within milliseconds to prevent injury. YuMi is incredibly precise and moving at a maximum velocity of 1,500 mm/sec.
YuMi is compact, with dimensions similar to that of a human, and dual-arms featuring seven axes of movement each allow the robot to have greater dexterity and precision inside a compact, human-sized workspace. YuMi only weighs 35 kg, has an integrated control system, integrated internal cabling for a multitude of input and output commands including air and digital, works off of standard household electrical power found the world over, and is extremely portable and re-deployable.
Courtesy of ABB, Germany
|at first glance||auf den ersten Blick|
|casing||Gehäuse, Hülle, Verkleidung|
|feed||füttern, zuführen, einspeisen|
|inherent/ly||innewohnend, dazu gehörend|
Autor: P. Zillmer
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