Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery and amending Directive 95/16/EC regulates a uniform level of protection for accident prevention for machinery and partly completed machinery when placed on the market within the EEA.
The directive describes rules on how to set up robots at your place of use.
Robots are usually delivered by the manufacturers as incomplete machines (according to: Directive-2006_42_EG.pdf) and only with documentation: technical documentation, assembly instructions and a declaration of incorporation.
For their use, however, robots still require control software, integration into a system sequence, appropriate tools and the necessary safety equipment. For commissioning, the following must also be prepared: Risk assessment, technical documentation, EU declaration of conformity and CE marking of the person installing the system. For this reason, integration and maintenance have so far mostly been carried out by specialist companies.
In the LEROSH approach, the complexity of the system and operation is now to be simplified as far as possible, thus also reducing the effort of integration – where possible.
Risks can be minimized with pragmatic safety concepts, ergonomic tools and automation solutions that are suitable for the skilled trades and thus drive the spread of robotics in the skilled trades.
Location: Tischlerei Eigenstetter
FORTEC is not quite as huge in reality, but it is certainly the heavyweight among the robots in the research project.
Location: Tischlerei Eigenstetter
Location: werk5 new craft, Strehl Kinderrehatechnik
6-axis industrial robot with synchronized turntable
A LEROSH test candidate: iisy – One of the 3 new cobots from KUKA’s iisy series
A development of the Institute of Robotics and Mechatronics at DLR ( > SARA )
More sensitive and more range than comparable cobots.
Where does the SARA show its advantages?
… a big one in the future.
Without sensors, robots cannot react to their environment and must be programmed for each task. With the rapidly growing number of robots, the programming of individual tasks by humans can no longer be performed to a sufficient extent.
Thus, the key to efficient robot use lies in the sensor-based perception of the working environment and, at the same time, the learning ability of the system to be able to act more and more autonomously.
DLR’s development of a stereo camera (roboception) allows 3D shapes to be captured with an accuracy of 0.5 mm. The data captured in this way forms the basis for the automatic generation of robot paths. werk5 has already demonstrated this application at the IHM 2019 to former German Chancellor Angela Merkel, among others.
The solution’s suitability for the trade (‘SCANINFORM’) was awarded the Bavarian State Prize.
General mode of operation
Non-electrical measured variables are converted into electrical signals. These include, for example:
Encoders & Angle Encoders
Capacitive displacement sensors
Rotating, oscillating or guided in simple motion – the decisive factor is the fit of tool shape and component geometry.
With the project support of joke technology GmbH, LEROSH can draw on the surface know-how there and a wide range of special tools.
For a high degree of automation, solutions for automatic tool changes are also needed.
Abrasive sheet changes or addition of other media such as polishing pastes should be possible with little technical effort.
An additional, automatic detection of abrasive fatigue can provide for quality improvements and efficiency increases.
The Fraunhofer Institute for Machine Tools and Forming Technology (IWU) is one of the most important research institutions in Germany in the field of production technology and the development of innovative automation tools.
For LEROSH, the institute is undertaking research into methods for integrating and fusing different sensors in an end effector with an integrated logic unit.
The goal is to develop a system-independent end effector in which sensors, logic and actuators – encapsulated together – could be used on different robots.
Tool-to-Part or Part-to-Tool?
Whether the tool is guided to the workpiece, or better the workpiece to the tool, usually depends on the size, shape properties and ‘grippability’ of the workpiece.
For a better form analysis, clarity and thus planability of the paths, moving the tool on the workpiece is closer.
For which tasks the opposite is true, has to be developed on the basis of relevant practical examples.