Showing papers by "Eugenia Minca published in 2021"
14 May 2021
TL;DR: The presented technology, although it works on a laboratory structure, has applications in the real world and meets the specific requirements of Industry 4.0.
Abstract: A communication and control architecture of a multifunctional technology for flexible manufacturing on an assembly, disassembly, and repair mechatronics line (A/D/RML), assisted by a complex autonomous system (CAS), is presented in the paper. A/D/RML consists of a six-work station (WS) mechatronics line (ML) connected to a flexible cell (FC) equipped with a six-degree of freedom (DOF) industrial robotic manipulator (IRM). The CAS has in its structure two driving wheels and one free wheel (2 DW/1 FW)-wheeled mobile robot (WMR) equipped with a 7-DOF robotic manipulator (RM). On the end effector of the RM, a mobile visual servoing system (eye-in-hand VSS) is mounted. The multifunctionality is provided by the three actions, assembly, disassembly, and repair, while the flexibility is due to the assembly of different products. After disassembly or repair, CAS picks up the disassembled components and transports them to the appropriate storage depots for reuse. Technology operates synchronously with signals from sensors and eye-in-hand VSS. Disassembling or repairing starts after assembling and the final assembled product fails the quality test. Due to the diversity of communication and control equipment such as PLCs, robots, sensors or actuators, the presented technology, although it works on a laboratory structure, has applications in the real world and meets the specific requirements of Industry 4.0.
6 citations
20 Oct 2021
TL;DR: In this paper, a Petri net model is proposed for transforming an assembly/disassembly mechatronics line into a flexible manufacturing system. But the model is based on a multi-agent manufacturing paradigm in the design of the manufacturing process but borrows elements from the reconfigurable manufacturing paradigm, proposing a modular extension of the system.
Abstract: This paper proposes a redesigned model for transforming an assembly/disassembly mechatronics line into a flexible manufacturing system. The flexible manufacturing system model considered is based on a multi-agent manufacturing paradigm in the design of the manufacturing process but borrows elements from the reconfigurable manufacturing paradigm, proposing a modular extension of the system. With a minimal hardware update of the manufacturing system, the number of customizable products that can be produced was extended from one model to five models. This redesign to produce more models in a flexible way was possible primarily due to the characteristics of the initial product. To better understand and test the proposed modification, a Petri net model is proposed and simulations for two of the models are made. Using the simulation data and the proposed manufacturing process models a workstation equipped with an ABB robot and a transportation system equipped with a SCARA robot are introduced. Both systems have dual porpoises, the workstation can operate on the fabrication line or as an independent flexible manufacturing cell, and the transportation system is used to transport products from both the manufacturing cell and from the fabrication line considering the modularization and the configuration task from the reconfigurable manufacturing paradigm.