Abstract
The manipulation of deformable objects poses a significant challenge for the automotive industry. In particular, the assembly of flexible cables and wire-harnesses in vehicles is still performed manually as there is yet to be a reliable and general solution for this problem. This paper presents a simple yet efficient motion planning algorithm to mount a flexible wire in an assembly jig, where the wire must traverse a set of forks in order. The algorithm uses a heuristic based on a set of control points to guide the wire’s movement. Various controlled assembly scenarios are built in simulation using MuJoCo, a physics engine that can emulate the dynamics of Deformable Linear Objects (DLO). Experimental results in simulation demonstrated that the amount and orientation of the forks has a large impact in the solution’s performance and highlighted several key ideas and challenges moving forward. Thus, this work serves as a stepping stone towards the development of more complete solutions, capable of assembling flexible items in vehicles.
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Notes
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https://www.pacline.com/photos/photos-by-solution/assembly-line-conveyors/ (accessed on June 10, 2022)
- 2.
https://pybullet.org/wordpress (accessed on June 10, 2022).
- 3.
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Acknowledgments
This work was funded by National Funds through the Portuguese funding agency Fundação para a Ciência e a Tecnologia (FCT), within the PhD studentship 2020.06923.BD, and by the Environmental Funds nr 01/C12-I01/2021 and nr 02/ C12-I01/2021, under the Portuguese Recovery and Resilience Plan.
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Leão, G., Sousa, A., Dinis, D., Veiga, G. (2023). Simulated Mounting of a Flexible Wire for Automated Assembly of Vehicle Cabling Systems. In: Tardioli, D., Matellán, V., Heredia, G., Silva, M.F., Marques, L. (eds) ROBOT2022: Fifth Iberian Robotics Conference. ROBOT 2022. Lecture Notes in Networks and Systems, vol 589. Springer, Cham. https://doi.org/10.1007/978-3-031-21065-5_32
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