Diseño y construcción de una máquina CNC de 3 ejes para el ruteo de pistas y taladrado de circuitos impresos (PCBs) por EMC2, aplicable en tarjetas de recuperación de PLCS.

Abstract

This graduation work is about the design and construction of a computer numeric control prototype machine as an alternative for the elaboration of printed circuit boards PCBs electronic plates through EMC2 free software, substituting in this way the conventional and artisanal methods, this tends to reduce the manufacturing time of each plate improving the process and quality as well as reducing the production cost. For this, it was necessary to draw the elements which make up the CNC prototype with the use of Solidworks software, this allows having simulations which reflect the operation of the machine before the construction of the components, it is also necessary to analyze and select the different elements which are necessary for creating an interface which allows moving and controlling the prototype with the software through a computer. The CNC prototype is made up by three fundamental systems: The mechanic system for moving the three axis, the microcontroller-based control system which interprets the instructions and controls the mechanical elements at the same time, and the program containing the information about the instructions to be carried out. Once the digital prototype was finished with all the requirements, it is necessary to keep on with the construction of the prototype with the materials previously selected, taking into account their function and utility, this makes a system able to fulfil the requirements for PCB plates construction in a fast and efficient way. It is recommended to carry on with the research about CNC systems in order to improve the technical development of the School.