Eventos Anais de eventos
COBEF 2023
12th Brazilian Congress on Manufacturing Engineering
Redesign of an industrial robot gripper based on additive manufacturing
Submission Author:
Valter Estevão Beal , BA , Brazil
Co-Authors:
Luana Seixas Andril Araújo, Valter Estevão Beal, João Ricardo Lima de Oliveira
Presenter: Valter Estevão Beal
doi://10.26678/ABCM.COBEF2023.COF23-0160
Abstract
In search of keeping competitiveness, the industry looks towards reducing costs and processing time while increasing the quality of their products. For this, industrial automation has been used, especially in Industry 4.0, making possible a standardization of processes, and increasing their efficiency. In this scenario, there are industrial robots whose one of their purposes is to move parts or manipulate tools through programmed movements in order to perform different tasks, which are performed thanks to a gripper, whose format depends on the task. In this sense, the present work aims to redesign the gripper of an industrial robot, using the advantages of additive manufacturing (AM), and to obtain economic viability. This technology consists in successively adding material layer-by-layer from a 3D virtual model, and has been widely used in different fields. Its advantages include design freedom which, allied to topological optimization, allows the manufacturing of parts with complex geometries. For the project, a virtual model of the original gripper was made to better understand its behavior under the forces applied to it. After that, an initial redesign was made. With the forces acting on the part calculated, static analysis and topology optimization were performed, resulting in a part that withstands those forces. The material and printing process chosen were PA12 (polyamide 12) and HP-MJF (HP’s Multi Jet Fusion), respectively. With the final 3D virtual model, the parts were printed, and tests were made, which included closing the gripper, picking up the object from one transfer station and placing it to another. After those tests, the redesigned part meets the project requirements not presenting visual plastic deformation, and economic viability, having a lower production cost than the conventional part obtained from regular supplier.
Keywords
Robô industrial, manufatura aditiva, manipulador robotico, Garra robótica, otimização topológica
