Papers by Keyword: Assembly

Abstract: Worker information systems provide the right information at the right time in a lean way. In this paper, the need for an integrated feedback system with formalised text parts is exposed. To meet the disadvantages of a lack of feedback, two important points are identified: involving of workers and guaranteeing a high information quality. Several approaches show that workers have to be included into an early stage of product development process to improve product details and especially assembly scenarios. Also, workers get an idea of their contribution to a zero-waste production. If more information is created, the quality gets more important. It is explained what quality criteria should be considered. Technical realisations for a feedback system close this paper.

Abstract: The article deals with verification and testing of proposed technical solution for automated assembly of electrical sockets at research robotized workstation. Based on the 3D and 2D design documentation was realized this workplace at the Department of Robotics. Research robotized workplace is built from industrial robot SCARA, palletizer and de-palletizer, vibratory conveyor and vibratory trays, replacing device of effectors and universal gripper, and also from others components (control PC, Main PC, rotary and linear modules).

Abstract: Article deals with design of automated workplace for electric socket by using an industrial SCARA robot. Electric socket contains of plastic cover, metal tab and plastic support part and serves for ensuring from connection of devices. There is, secondly, a process for electric socket assembly and also the actual design of workplace with individual devices.

Abstract: The digital progress monitoring of manual assembly processes at goods with huge dimensions is a challenging task. The paper presents an approach using 3D-image sensors for gesture control and progress recognition. The developed system is able to avoid time and effort consuming walks of workers between assembly objects and computer terminals. Progress recognition of assembly processes is realized by interpreting the movements of the workers’ hands and by detecting the passing of defined coordinates within the assembly and warehouse areas.

Abstract: To respond to challenges created by an increase of product variants, multi-variant lines are used as today’s assembly systems. In these multi-variant lines different product variants with diverse lot sizes can be efficiently assembled. These assembly systems are characterized by modular structures that allow assembly system adaptation by reconfiguration.The variety of parameters to be considered from the product’s perspective and the correct allocation of different assembly modules increases the complexity when planning these systems. This complexity makes it difficult to successfully plan and implement production processes. Therefore, digital planning tools and models have to be used to schedule new product variants and to verify that the assembly is possible, given by the modules in the assembly line.Due to its ability to reconfigure, the actual assembly system is adaptable to different product variants. But these modifications are performed by the operator on the shop floor and are often neither properly documented nor communicated to the assembly planer. Thus, the configuration status in reality and the virtual model differ from each other. Using the outdated model for planning without taking into account the changes can result in an unrealizable assembly plan.To overcome this problem, the presented paper introduces a method and technical system to identify the actual assembly system configuration before the assembly planning is done. Due to the subsequent update of the virtual model depending on the actual configuration, the assembly planner is supported with the latest version of the assembly system configuration. Furthermore, the assembly planning process is improved, because possible failures are detected in advance in the virtual planning environment.

Abstract: To provide high quality in production and assembly processes need to be controlled. This paper analyzes the effect and necessity of online monitoring and closed-loop control of pin insertion. In this investigation pin insertion is an assembly process wherein metallic pins are pressed into polymer structures. The investigations described in this paper are made at the Robert Bosch GmbH and according to their requirements towards production standards, quality and traceability.

Abstract: This paper was carried out with an aim to use a modified knowledge management model, that could provide a knowledge management tool that would ensure decreased downtimes, error rates and could enhance knowledge transfer for a company. This research involved quantitative assessment in measuring knowledge management success by using designed methodologies accompanied by data collection from the quality control department. The results of this research were the measurement of the knowledge management tool success.

Abstract: The electrification of drives is an enormous challenge as well as an opportunity for the automobile industry and its suppliers to provide competitive and affordable technologies to participate within this change. The high costs of battery systems, the range limitations of electric vehicles and the insufficient charging network are three of the main reasons, this change is still troublesome in its realization. To realize a cost-efficient production of battery systems, a high degree of automation and an increased production throughput is necessary. This paper focuses on the pouch cell with its high energy density and presents a solution, of how to significantly increase the production throughput in the z-folding of separators. The approach pursued is the assessment of shifting from discrete pick-and-place operations to a continuous process flow, enabling a cost-efficient production of electrode-separator compounds and ultimately lithium-ion batteries.

Abstract: Modern day production has to overcome a polylemma – the gaps between economies of scale and scope as well as between economies of plan and value. Due to shorter product lifecycles and a rising demand of customization, flexibility and adaptability of assembly processes will become key elements for a sustainable success of industrial production in high-wage countries. Self-optimization as presented in this paper has been identified as one major contributor to the enhancement of this flexibility and adaptability. After a short introduction of the historical background, the specifics of the application of self-optimization to assembly are discussed using its meta model. In the end, two application examples are presented to illustrate its industrial deployment.

Abstract: This paper presents an approach for the operational controlling of the assembly in timed assembly cycles focussing on large-scale products. In order to handle the assembly of small quantities and long assembly times a controlling method based on predefined actions initiated according to the deviation of four KPIs (key performance indicator) can be implemented. The selected KPIs are missing parts, disturbances, resources and overdue work on the critical path of the assembly process to focus on the early fault detection during the assembly. Therefore the predefined actions in the operational controlling are taskforces, escalation, people shift between stations and overtime.