Diseño de una cortadora CNC de 4 ejes para espumas de poliestireno aplicada en manufactura de vehículos aéreos no tripulados.

Abstract

The objective of this work is to design a prototype machine for cutting polystyrene with computerized numerical control (CNC) applied in the manufacture of aerodynamic surfaces following the concurrent design methodology that consists of four stages that are: definition, conceptual design, materialization design. and detail design. In the definition stage, the technical specifications of the machine are determined according to the needs and wishes of the users. Then, in the conceptual design stage, a functional analysis is developed taking the technical specifications as a starting point, which allows identifying the modular structure of the machine, which consists of four modules that are: programming, mechanical, electronic, and power in which several alternatives are proposed to evaluate and select the best solution principles for each module, shaping the global solution through a CAD model. Next, in the materialization design stage, the mechanical components are dimensioned using the failure theories of the mechanics of materials and, on the other hand, the required electronic devices are selected, as well as all the necessary software to establish the control of machine. Finally, in order to avoid impacts or waste of material, a G code generation software is selected which allows simulating the movement of the machine and its configuration and use procedure are also detailed.