FiRAC simulates real-life automotive assembly line conditions to advance screwdriving applications
Firac
In short
FiRAC , a SNEF Group company, helps businesses integrate more lean, flexible, scalable, and intelligent industrial processes. Specializing in the design and deployment of robotic solutions, the group has been operating in the automotive and aeronautics sectors for over 40 years.
An integration partner of Universal Robots since 2015, FiRAC recently successfully integrated two cobots onto an assembly line at a Stellantis (PSA and FCA group) plant in Sochaux. The integration was completed in record time and the benefits are already being felt by the customer.
Enhancing ergonomics and quality in wheel component assembly
As part of its Factory of the Future project, the PSA group has automated part of its wheel component assembly line.
Alongside the constantly moving main assembly line is the secondary flow. This section is where parts are prepared and activities such as screwing and quality control are carried out on the product being manufactured. Here, handling is carried out by 13 AGVs. They follow a predefined circuit and load equipment and tools. They stop while operators perform the screwing operations, which are precise, repetitive, and tiring.
The objective of the application was to improve the ergonomics of workstations as well as the quality of operations.
Firac
Main value drivers:
Operating safely alongside operators Fast ROI, minimal maintenance Productivity gain Quality improvement
Tasks solved by collaborative robots:
Screwing into hard-to-reach corners Repetition and precision of the gesture Carrying very heavy screwing tools
Automation challenges solved:
Reduction of MSDs of operators by performing a physically demanding task Evolution of operators on tasks with higher added value Easy integration into the existing production line
How they did it
Automating repetitive screwdriving tasks with collaborative robotics
The choice fell on two UR10 robots from Universal Robots capable of carrying out a wide range of operations thanks to their long range and an on-board payload of 10Kg.
In this case, the operator was screwing brake disc protectors onto half-axles of a vehicle.
This is a position with no added value, where the operator holds heavy tools all day long to repeatedly screw parts into sometimes difficult-to-access corners. This arduous task requires a rotation of operators. In addition, the difficulty of the task meant that errors were inevitable and rework was frequent.
A cobot supervised by humans
For this application, the entire PSA team - line driver, production manager, maintenance personnel and all those working near the cobot - received training at different levels to be able to intervene on the cobot in the event of a problem.
It's the local operators in particular who have seen their roles evolve. They are now responsible for supervising the cobot's work and intervening in the event of a breakdown. They then check to see if they can restart the robot themselves. If they can't, they call the line manager and, as a last resort, the maintenance department.
All were trained to ensure the maintenance of the installation in record time. To do this, FiRAC offered several modules based on UR Academy 's online training .
Stéphane Marnat, Automation, robotics and cobotics manager FiRAC, SNEF groupIt was an extremely rapid deployment that took us between 2 and 3 months. The schedule was met thanks to the strong commitment of production and maintenance staff.
Faster integration, safer workstations, and higher productivity
The application developed by FiRAC with the integration of UR cobots limits repetitive movements imposed on operators and reduces the risk of MSDs . It increases productivity and production quality.
The factory operated 3 shifts during the week and 12 hours on Saturdays and Sundays. The cobot was installed at the end of October 2019; the first training sessions took place at the end of November 2019, and everything was completed by December/January. The schedule was met thanks to the strong commitment of production and maintenance staff.
In total, the project took between 2 and 3 months, taking into account the various constraints of the client's schedule. This was a quick turnaround time, as this was not the first time the PSA Group had integrated robotics. The other reason was that Universal Robots cobots are specifically designed to be easy to integrate into an existing production line. All of this, combined with FiRAC's experience, made it possible to integrate the cobots much more quickly than with traditional industrial robots.
FiRAC replicates real assembly line conditions in it's workshop
"Dry" assembly, in addition to virtual simulations, in order to test and adjust the equipment in real conditions
A UR10 with an on-board camera freezes the final position of the products in space before starting the screwing cycle carried out by the second UR10
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