Flexible and accurate assembly processes: from 3 to 6 June 2014 the world of automation and mechatronics will be the focus of the Automatica international trade fair in Munich, where scientists from Fraunhofer IPA will demonstrate a sensor-controlled lightweight assembly robot. The goal is to increase the flexibility and cost-effectiveness of assembly processes by using sensors to assist component-specific work-holding fixtures. Workpiece variations and product tolerances can thus be reliably addressed while quality remains unchanged.
Whether for locating workpieces or controlling movements during production processes, fixtures have conventionally been an indispensable element of automation.
Such functions can be realized with maximum flexibility by new-type sensor-controlled robot systems.
Growing cost pressure, short product life cycles and high product diversity call for flexible and cost-effective assembly systems that can, when necessary, be quickly adapted to suit changed requirements. Scientists at Fraunhofer IPA have developed a sensor-controlled assembly process that makes it possible for workpieces to be flexibly positioned without the need for additional work-holding fixtures.
Also, 3D-printed tools ensure fast adaptation of the robot system to suit workpiece-specific geometries. “Our aim with this exhibit is to demonstrate that sensor-controlled robots are capable of coping with modern-day conditions at manual assembly workstations, such as chaotically arranged components,” says Martin Naumann, Group Leader in the Robot and Assistive Systems department at Fraunhofer IPA. “By replacing fixtures with sensors, we offer flexibility at low cost,” adds Naumann.
Exhibit at trade fair
Fraunhofer IPA’s stand at the trade fair will demonstrate sensor-controlled assembly in a robot cell with the KUKA LBR iiwa. “The cell will showcase the example of how to bolt a clutch onto the crankshaft of a chain saw.
However, the underlying concepts can equally well be applied to many other products and assembly processes. We’re highly interested in transferring the exhibited solution to new applications,” explains Naumann. The clutch for mounting on the crankshaft is placed within the robot’s workspace without the need for a separate work-holding fixture.
The robot moves to the determined location of the clutch and localizes the exact position of the component using an additional camera integrated in the robotic tool.
The mounting position of the clutch on the crankshaft is localized in the same way, which means that the engine block can also be flexibly positioned anywhere within the robot’s workspace. The clutch is slid and bolted onto the crankshaft with precision force control, which allows any errors during bolting on, such as tilting, to be detected and immediately corrected.
More at Automatica – 6th International Trade Fair for Automation and Mechatronics
3 to 6 June 2014
New Trade Fair Centre Munich
Hall A4 | Stand 530
Dipl.-Ing. Martin Naumann, phone +49 711 970-1291, firstname.lastname@example.org
Jörg Walz | Fraunhofer-Institut
AchemAsia 2019 will take place in Shanghai
15.06.2018 | DECHEMA Gesellschaft für Chemische Technik und Biotechnologie e.V.
Insects supply chitin as a raw material for the textile industry
05.06.2018 | Fraunhofer-Institut für Grenzflächen- und Bioverfahrenstechnik IGB
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
18.07.2018 | Materials Sciences
18.07.2018 | Life Sciences
18.07.2018 | Health and Medicine