Estudo e aplicação de medição com câmera de vídeo em máquinas de medição por coordenadas

Abstract

It is evident that with the increasing advance of the manufacturing industry there is a need for an efficient quality control that meets this demand produced within an increasingly shorter period of time. As a result of this, Coordinate Measuring Machines (CMMs) are widely used for inspection of various components in the current industry, in addition to having the Computer Numeric Control (CNC) - which makes the measurement process much faster than conventional methods - can still measure numerous geometries, since they have several sensors that are suitable for various situations, therefore, there is hardly a configuration that the CMM can’t measure. Measurements made by a CMM can be divided into two groups: contact measurements and non-contact measurements. Contact measurements use the touch sensor, known as a probe, which collects coordinate points on the measured piece with the sensor deflection when touching. Non-contact measurements can be performed with the laser sensor or a digital camera. The present work of master dissertation aims to present some applications of non-contact measurements with the use of a CMM, which incorporates a Charge-Coupled Device (CCD) camera, in components such as fuel injectors nozzles, printed circuit boards and sphere of high accuracy, since these elements have geometries with dimensions less than 4 mm, making it impossible to measure with the use of the conventional contact measurement system.