Abstract. The research in mini, micro and desktop factories originates from the early 90's and has continued since then by developing the technological basis and different technological building bricks and applications in the field of high-precision manufacturing and assembly of future miniaturised and micro products. This has paved the way for mini, micro and desktop factories which are seen as one potential solution for what kind of production by improving space, energy and material resource utilisation and answering to the needs of design for postponement and customer-close customisation and personalisation. This paper presents one case application for flexible micro factory. Application area is macro world assembly system in miniaturised form. Current trend in this research is the miniaturisation of macro world machines and systems towards more sustainable production technologies.
This article introduces two scanner devices, which were used to study the possibilities of applying small vibratory motion in pulse laser machining. Small and fast oscillating motion is used in this research to decrease the pulse overlap of the pulsed fiber laser. When pulse overlap comes smaller the machining properties of the beam improve, because the previously vaporized metal does not cause power loss in the machining. Piezoelectric actuators have not been used much in certain scanner solutions, but they meet the speed and accuracy demands of many applications. This is mainly because the achievable work areas are small. Piezoelectric tip/tilt-mirror actuators that are commercially available have small scan angles when compared to galvanometer-based scanners. This research objective is to achieve better machining quality and to improve productivity.
Abstract:This paper presents a test environment enabling the study of factors affecting on the success of a robotic precision assembly work cycle. The developed testing environment measures forces and torques occurring during the assembly, and uses a system based on machine vision to measure the repeatability of work picce positioning. The testing environment is capable of producing exactly known artificial positioning errors in four degrees-offreedom to simulate errors in work-piece positioning accuracy. The testing environment also measures the total duration of the robot work cycle as well as the durations of all essential phases of the work cycle. The testing environment is best suited for light assembly operations and has measurement ranges of *36 N and *0.5 Nm and the vision system has a field-of-view of 6 mm.The latter part of this paper presents the results of the research done in order to find out how some selected factors affect the assembly forces of robotic assembly. These factors include work piece and process parameters such as work piece material and design (chamferedistraight), positioning tolerances, and robot insertion motion speed.
Abstract. This paper presents our work on developing a flexible, adaptive and multifunctional gripper system for the assembly of camera phone lens modules. Key features of the system include tool change system for different end tools and visual position measurement of the component after grasping. This paper presents the development work and discusses the findings of system tests carried out in order to validate the developed gripper system.
International audienceImage stitching is a method that forms a bigger image out of two or more smaller images with a certain overlap in their field-of-view. Usage of this technique is present in photography, medical imaging and other fields as well. The potential for using image stitching for measurement purposes in industrial applications has not been investigated as thoroughly, but it is receiving more attention. This paper examines the possibility for creating a machine vision-based measurement system that employs commercially available image-stitching platforms for measuring the length of long medical screws. Three methodologies were tested for performing medical screw measurements and this paper summarizes the findings of the image-stitching approach
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