Diseño y Construcción de un Sistema de Control Utilizando Motores Paso a Paso Aplicable a Sistemas de Ensamblaje y Selección de Manómetros.

Abstract

Analysis and construction of a control system was carrier out using step by step applicable to assembly systems and selection of engine gauges at School of Electronic Engineering in Industrial Control Networks Polytechnic School of Chimborazo. The control system is designed to assemble gauges joining the tops whit the bases thereof, resulting in a subsequent final processed product, the assembly selection gauges which will be stored according to color (red, black) is perfomed and one type of material (aluminium, plastic) with which they are made. The experimental method was used by various tests consisting of gradual increase in speed step to reduce engine assembly time, and the inductive method to determine sizing and selection, to determine the efficiency of the assembly and selection, components from de FluidSIM software desing, the grafcet technique for program development in the Programmable Logic Control (PLC) was used. The system consists of an electric linear actuator which changes the rotary motion of a stepper in linear displacement and has 400mm of race or tour, this engine with a supply voltage of 24 volts DC, a pneumatic cylinder 100 mm race located at the end of the electric linear actuator rod, a suction device (pneumatic suction) on the rod of the pneumatic cylinder responsible for making caps gauges and unie with the bases thereof, this completing the assembly, as well consits of sensors the same emitting electrical signals to the programmable logic controller (PLC), which decodes these signals and instrucst the controller linear actuator movement allowing placed in the space provided for storing gauges selected by color or material at the end of the deposit of each gauge in their respective places the process is restarted, the system has a control panel trough wich gives, start, stop and restart process paraellel consists of a Human Machine Interface (HMI) developed LabVIEW software that can perform the same actions as the physical control panel. Assembly system and selection of gauges allows us to make this process with 99% efficiency determined by the tests carried out. It is concluded that the linear actuator provides high accuary and speed when perfoming movements so this device can be used in industrial processes that require these qualities. Based on the research we recommend the computer user have adequate electrical protection elements, to prevent equipment damage.