TECNALIA and the company specializing in the construction of industrial equipment Automatismos Maser have developed an automated solution for the final verification of the parts for the foundry company Betsaide. The development has been carried out with the support of the Basque Industry 4.0 program, aimed at financing intelligence projects in media and production systems and managed by the SPRI Group. The solution consists of a cell composed of two synchronized robotic arms and two camera systems. The first one captures 2D images to identify internal defects and inspect dimensional and mold variation aspects. Meanwhile, the second camera is a structured light 3D system with high processing speed for the control of surface defects, including those of curved surfaces, and aspects related to thickness in flat areas. This new system has allowed Betsaide to win a contract that, according to a note issued by Tecnalia, has given them [...]
Industrial pick & place applications automate processes where loading and/or unloading unitary product is needed. This kind of installations usually use robots or articulated arms to manipulate product from one area to another in stacking, box fitting and palletizing work. Both physical product characteristics (shape, deformity degree and adhesiveness) and disposition, as well as transfer velocity and manipulation zone distinctive features establish task complexity. To optimize installation efficiency and reduce cycle time, it is common using line tracking technique to take and unload product from or to a conveyor belt while it is running. This is possible with robots being commanded by an encoder signal. Another important point is related to grip design. In some cases, it is enough using simple vacuum grips provided with suction pads which allow to grab piece at desirable speed. A more complex option consists on working with grabbing clamps, pneumatic cylinders [...]
Pipe manufacturing is a complex process where dimensional defects may occur due to several causes that may affect the product´s quality. A machine vision system can be employed to detect those defects before they reach the customer. Tecnalia´s Computer Vision Group has developed a complete machine vision system for Tubos Reunidos which is capable of measuring both sides of the tube after it has been introduced in its point of inspection. It can measure several dimensional parameters such as diameters, wall thickness, concentricity, eccentricity, to name a few, and can verify that these values are within the allowed range for each reference. The system is installed in the cold drawn factory located in LLodio and has been key in guaranteeing the quality of the tubes. This is a portable system which is housed in a sole enclosure which includes the lighting and capture systems as well as the mechanical [...]
Wood is a living organism. Its quality control and assessment based on visual inspection is a very complex process. Tecnalia Computer Vision in collaboration with the Sustainable Construction Division has developed a system that provides solutions to this problem. The system has been developed to detect different types of defects and features that exist in wood, such as mineral stain, alburnum, stains, buds as well as defects caused by dirtiness in the plant. The system can also evaluate the visual appearance of the wood in accordance with the location and extent of the different problems. Timber is very variable and its assessment by traditional means is very difficult. The problem has been solved by means of algorithms based on perceptual models that not only characterise the different types of defects, but also estimate the perceptual quality of the wood based on the types of defects and its location within [...]
The manufacturing of plastic foams is a two-day long process from the moment of the initial pour of the component substances in the mold until the foam block is obtained in its final shape. There are some verifiable parameters which can guarantee the product´s quality and the specific customer requirements, such as firmness, permeability or number of pores. However, these are only obtained at the end of the foaming process and can only be foreseen by an expert´s intuition. Therefore, it is important to be able to predict the final result from the first stage of the process as well as to be able to immediately modify, if necessary, the production variables and introduce corrections. Tecnalia´s Computer Vision Group, in collaboration with IPF Engineering, has developed for ICOA foam manufacturer a machine vision system installed in the first stage of the foam process. This system calculates the parameters that [...]
Tecnalia developed for Tubos Reunidos a novel automated inspection application for surface defects in hot rolling/lamination processing based on a redundant special lighting system based on wavelengths that are sufficiently distant from the emission of the incandescent steel. This system inspects the surface by employing optic filters, safety systems and three high resolution line cameras that are housed in three protection casings. An image has been achieved of the development of the complete tube as if the latter were at room temperature. This system has been fully operational for the last three years and has created a product line that is being implemented in other important companies in the sector. Tubos Reunidos S.A. is a renowned seamless steel tube manufacturer whose products are mainly used in the oil & gas industry. The rolling mill/lamination process can sporadically produce surface marks and defects due to the wear & tear of [...]
Tecnalia Computer Vision has developed for Tubos Reunidos a novel three dimensional control system that allows a three dimensional measurement of the bevelling in 100% of its production. This project developed a three dimensional rotating scanner (P-200931287) that was custom designed for the measurement of revolving elements. This scanner is composed of a rotary edge that turns a set of two lasers and a camera. This equipment obtains different sections of each tube. These sections allows reconstructing the three dimensional image where the dimensional control takes place. This system solves the problems associated with the automated analysis in the scanning of rotating elements by means of this new scanning technique which allows the automated reconstruction and processing. The controlled measures by Tubos Reunidos are: external diameter, internal diameter, thickness, height, depth and angle of both internal as well as external bevels, roundness, concentricity and eccentricity of the tubes with [...]
The manufacturing sector of aluminium cans has evolved with the development of a system that can position the lithographed cans in order to make controlled embossings such as registered trademarks, shapes or overimpressions. A high precision position control system and a new tool for the embossings are the means by which a new range of aluminium cans are being manufactured. An additional advantage of this equipment is that it is integrated into the existing embossing machine. This system has been the result of the joint efforts of the enterprise Envases Metalúrgicos de Alava and Tecnalia’s Computer Vision Group. Controlled embossings have evolved to become a quality brand in the luxury sector where illegal copies are commonplace. Therefore, only original products have the trademark embossed in the aluminium can.
ESTAMCAL is an enterprise located in Abadiño that specializes in the manufacture of hot stamped parts for the automotive industry. In 2003 Tecnalia collaborated in the development of a part sorting machine by developing a machine vision quality control program that inspected the upper and lower faces of the gearing parts in two inspection points. In 2011, the aforementioned machine was modified to be able to inspect several references of cams. At present, an inspection takes place using machine vision of the upper and lower faces of the cams using a darkfield illumination. The sides are also inspected by using two 3D laser camera triangulation systems in each position in order to obtain and analyze the profiles of the sides. The system inspects a part per second in each position. The main defects that are primarily detected are dents, cracks and filling mistakes. Tecnalia has designed the systems and [...]
The Land-Tecnalia alliance has has fostered the development of a complete infrared image processing library by Tecnalia that along with the use of Land hardware allows the customisation of the interface, processing and the communication of the results. This library provides powerful software analysis tools that allow the customisation of the solution application, ranging from simple to the most complex algorithms. These developments are being implemented at the ArcelorMittal plant in Sestao and in other important steel manufacturers. The application prospects for this library includes a broad range of industrial clients, far beyond the steel industry.