Cobots and flexible production - future-proofing SMEs
22 July 2020 | Web Article Number: ME202019757
MANY countries in the EMEA region are likely to experience serious labour shortages over the coming decade, especially in relation to technical specialists. At the same time, product lifecycles are becoming shorter.
Despite this, small and medium-sized enterprises (SMEs) might be reluctant to invest in additional automation due to the cost factor. However, collaborative robots (cobots) are easy to set up and offer a quick and cost-effective solution.
That’s according to automation company Omron, which cites its TM series of collaborative robots as an example, saying they can increase the flexibility, quality and speed of production and enable companies to respond rapidly to changing market conditions.
But the question is, how will robots future- proof these enterprises?
Robots are not new to the industrial world and were first used in industrial manufacturing in the 1960s and since then, their number has increased inexorably.
Omron says an estimated 500,000 to 600,000 new robot systems are now becoming operational throughout the world each year, although the increase is particularly noticeable in the Asian market, as reported in ‘World Robotics 2019’ by the International Federation of Robotics (IFR) and Fraunhofer IPA.
“If small and medium-sized production companies in the EMEA region want to keep up with constant economic growth internationally, they need to invest more in automation for cost reasons alone. Due to technical skills shortages, greater automation is needed to counteract this decline,” the company said in a statement.
Classical industrial robotics might not be the solution in all applications. Traditional production lines are designed for manufacturing large numbers of products. In today’s world, product lifecycles are getting shorter for example, in the 1970s, the average product lifecycle of a vehicle was eight years.
“Today, car models often get their first modifications or facelifts after just two to three years. Production and automation must adapt to the shorter lifecycles of products, and cobots can help with this.”
Cobots were first introduced in 2008 and represent a relatively new category of industrial robots. In contrast to traditional robots, which must be shielded from the human workspace by a security fence, cobots were developed to work safely with people. Users also need less time and money to program an application with these “helper robots.”
In addition, cobots can easily be moved from one location to another to work on different tasks, whereas conventional industrial robots have to stay in one location and can normally only be used for a specific task within the robot cell. Cobots therefore provide greater flexibility to the user.
The diverse tasks they can handle vary from simple pick-and-place applications for parts handling, sorting, and palletizing, right through to machine assembly, order picking, packaging, and testing. They can help to apply adhesive and sealants, assemble or disassemble parts, measure, test, check and take over screwing operations.
“The result is seen in significant benefits for the employees, who no longer have to carry out monotonous, physically demanding or even dangerous work, but will receive support with precision work and can concentrate on their core abilities.”
Omron said its TM series of cobots illustrate how versatile and straightforward cobots are in today’s world.
“The different versions are suitable for practically any environment, such as the automotive, semiconductor, food, packaging, and cosmetics sectors. Due to the flowchart-based programming, an intuitive HMI user interface and simple, hand-guided teaching functions, almost no previous knowledge of programming is required.
“Just like with a PowerPoint presentation, the user can assemble complete function blocks and fill the predefined attributes with the desired parameters.” The cobots have options that include an integrated camera, vision and a lighting system which enable them to precisely handle and trace items.
Many core functions (such as pattern, barcode and colour recognition) enable detection, inspection, measurement and sorting applications to be implemented easily and, if necessary, adapted to other requirements.
“With the help of Omron’s Landmark positioning recognition facility, the cobot knows where it is and can be aligned with another machine, for example, without much effort or recalibration. It can even move autonomously and work wherever it’s needed, because cobots can be combined with Omron’s LD series of mobile robots.”
Additional components (such as extra axes, grippers, force sensors, communication devices or screwdrivers) can be easily used by the cobots via plug-and-play system. Omron has set up a partner network that offers a range of suitable components.
The company’s automation experts also provide support with any queries about the use of cobots. This starts with the analysis of the production task and the environment; the selection of the appropriate cobots and grippers or additional components; and also includes risk analysis and assessment, commissioning, training and technical support.
“All of this makes it easier for SMEs to gain a foothold in the flexible manufacturing industry of the future.”