Dissertations / Theses on the topic 'Robot Process Automation'

With technological breakthrough in information sphere, a new approaches for work efficiency in enterprise areas are discovered today. One of them is process automation. This publication will describe "Robot Process Automation" term, present two possible solutions for implementation of model example and resolve the results in case of economical advances.

This diploma thesis deals with robotic automation of selected business process using RPA technology. Robotic automation tools are compared with each other and two are subsequently selected for development of the automation – the UiPath software and the AiVIRO library. Realized automations are compared and evaluated in conclusion.

The assembly process in Volvo Construction Equipment, in Braås, is fully hand-operated. The aim of this Master thesis project is to develop and evaluate different concepts of how the automation level could be increased. This study aims to find reliable technology/automation solutions that could be used in one or more operations in the assembly process and identify the benefits for Volvo Construction Equipment. The work will end up in concepts and recommendations on what areas of the assembly process would be most beneficial to automate first. Conversations, observations, and interviews took place in the assembly department to help in the selection of the station in which automation can be most easily introduced. Automated procedures at this station will have advantages since they will include robots. The robot can take over some of the assembly procedures, while the worker can be occupied with others. From an ergonomic perspective, these procedures will be improved; thus, the efficiency and the quality will be better, and this will be achieved because the human will focus on procedures where creativity and human hands are needed, and the robot will take over the most un-ergonomic and difficult operations.

Företag strävar idag alltmer efter att automatisera och effektivisera sina verksamhetsprocesser. Till följd av den digitala transformationen av vårt samhälle skapas ständigt nya möjligheter och tekniska innovationer för att stödja automatiseringen av processer genom att göra saker på helt nytt sätt genom att använda sig av modern informations- och datorteknik. Denna studie undersöker en ny teknisk innovation i form av mjukvarutekniken RPA (robotstyrd processautomation) samt dess förmåga att automatisera arbetsuppgifter som vanligtvis utförs manuellt. Studien syftar till att belysa de utmaningar som riskerar att uppstå samt vad som bör beaktas vid utvecklandet av RPA inom en verksamhetsprocess vilket redovisas i form av rekommendationer. Studiens metod utgår från ett explorativt angreppssätt, en kvalitativ datainsamling samt har en abduktiv ansats då ett fenomen både undersöks och analyseras med hjälp av teori relaterat till RPA och automatiserandet av verksamhetsprocesser. De utmaningar och rekommendationer som tagits fram baseras på resultat från mötestillfällen i form av semistrukturerade workshops baserade på utvecklingsprocessens fyra steg samt på utvecklingsgruppens egna upplevelser kombinerat med den teori som använts som underlag för analys. Studiens viktigaste resultat är att processen noga bör kartläggas och optimeras innan utvecklandet inleds samt att en ständig uppföljning med slutanvändaren genomförs i syfte för att upptäcka eventuella förändringar av krav. Någon inom utvecklingsgruppen bör, utöver ett tekniskt perspektiv, även inneha ett processperspektiv samt grundläggande kunskap kring utvecklingen av en verksamhet.
In today’s society companies increasingly strive to automate and streamline their business processes. As a result of the digital transformation of our society, new opportunities and technological innovations are constantly being created with the purpose of supporting the automation of processes by doing things in a completely new way and by utilizing modern information and computer technology. This study examines the new technological innovation in the form of a software technology called RPA (robotic process automation) and its ability to automate tasks that are usually performed manually. The study aims to highlight the challenges that are likely to arise and what the developer should consider when developing RPA within an operational process, which is presented in the form of recommendations. The method of the study is based on an exploratory approach, a qualitative data collection and an abductive approach, since a phenomenon is examined and analyzed using theory related to RPA and the automation of business processes. The challenges and recommendations that have been developed are based on results from a number of meeting sessions in the form of semi-structured workshops based on the four stages of the development process and on the development group's own experiences combined with the theory used as a basis for an analysis. The most important result of the study is that the process should be carefully mapped out and optimized before the development begins and that a continuous follow-up with the end user should be carried out in order to detect any changes in requirements. Someone within the development group should, in addition to a technical perspective, also possess a perspective related to processes and basic knowledge of business development in general.

Robotic Process Automation (RPA) är en bred variation av tillvägagångssätt och tekniska lösningar som arbetar som ett stöd för att automatisera repetitiva arbetsuppgifter. År 2017 fastslogs en ny lagstiftning i Sverige som möjliggjorde för den offentliga sektorn att automatisera beslutstöd. Detta ledde i sin tur att allt fler svenska kommuner började implementera RPA. Av Sveriges totalt 290 kommuner klassas 259 stycken som mindre kommuner. För dessa mindre kommuner är det viktigt att balansera mellan att ha tillräckligt mycket bemanning för att både klara av ekonomin samt arbetsuppgifterna. Dessutom har flera kommuner i Sverige inte råd att anställa ny personal på grund av den rådande pandemin. Flertalet av dessa mindre kommuner har ännu ej påbörjat sitt arbete med RPA. Studien undersöker sex mindre svenska kommuner som har implementerat RPA med syfte för att ta reda på de effekter och förändringar som uppstått efter implementationen. Detta har gått till genom semistrukturerade intervjuer, för att få reda på hur kommunens implementering gått till, vilka processer och inom vilka områden kommunen har valt att automatisera samt vad kommunen har sett för effekter av detta. Tematisk analys användes sedan för att hitta mönster samt teman i intervjuerna. Resultatet visade på lyckade implementeringar där kommunerna har kommit olika långt i sitt arbete och nått olika nivåer av framgång men där samtliga genom RPA har frigjort tid för sin amedarbetare. De medverkande kommunerna i studien har ett flertal nya processer att automatisera i planeringsstadiet för det kommande året. Slutsatsen av denna studie visar på att effekterna av RPA ger goda resultat genom att frigöra tid och effektivisera arbetet för de mindre kommuner som har valt att lägga ner resurser på det. I brist på andra sätt att lösa sina nuvarande problem, är RPA i dagsläget en metod för att balansera ekonomi och de växande utmaningarna för en mindre kommun.
Robotic Process Automation (RPA) is a wide variety of approaches and technical solutions that work as a support to automate repetitive tasks. In 2017, a new legislation was enacted in Sweden that made it possible for the public sector to automate decision support. This in turn led to more and more Swedish municipalities starting to implement RPA. Of Sweden's total 290 municipalities, 259 of them are classified as smaller municipalities. For these smaller municipalities, it is important to balance between having enough staff to manage both the finances and the tasks. In addition, several municipalities in Sweden cannot afford to hire new staff due to the current pandemic. Most of these smaller municipalities have not yet begun theirwork with RPA. The study examines six smaller Swedish municipalities that have implemented RPA with theaim of finding out the effects and changes that have arisen after their implementation. This has been done through semi-structured interviews to find out how their implementation went, what processes and in which areas they have chosen to automate and what they have seen for effects of this. Thematic analysis was then used to find patterns and themes in the interviews to present a common overall result with rich descriptions. This result showed successful implementations where the municipalities have come far different in their work and reached different levels of success, but where all through RPA have freed up time for their employees. These six municipalities also have a few processes to automate in the planning stage for the coming year.T he conclusion of this study shows that RPA gives good results for the smaller municipalities that have chosen to invest resources in it. In the absence of other ways to solve the current problems, RPA is a good method for balancing finance and the growing challenges for a smallermunicipality.

Digitalisering och automatisering har alltmer kopplats till argument om förändringar i arbetslivet. I den här uppsatsen undersöks digitalisering och automatisering i praktiken genom att fokusera på HR-praktiker och organisering av automatisering i HR-avdelningar i större organisationer i Sverige. Trots att det finns flera rapporter, som hävdar att automatiseringsteknologierkommer att förändra HR, finns det få empiriska studier om denna förändring. Syftet med studien är därförattfå en djupare förståelse för digitalisering och automatisering på HR-avdelningar i större organisationer utifrån ett Human Resource Development perspektiv.Genom att använda ett organiseringsperspektiv och situerat perspektiv på lärande, samt teorier om gränser och gränsöverskridande roller, har studien fokuserat på lärande-och förändringsprocesser vid automatisering. Studien har en kvalitativ ansats och har använt en tvärsnittsdesign,där sju semistrukturerade intervjuer har genomförts med HR-praktiker från sex olika organisationer. Resultatet visade att det finns kontextuella skillnader mellan HR-avdelningarna gällande hur de har organiserat arbetet med automatisering, vilket har skapat olika förutsättningar för förändring och lärande. En central del i resultatet är behovet av en gränsöverskridande roll mellan HR-och IT-avdelningen. Studien visade även att automatisering inom HR inte innebar en förändring i arbete och kompetens för all HR-personal, då det endast var viss HR-personal vars arbete hade påverkats av automatisering.
Digitalization and automation has increasingly been connected to arguments about changes in working life. This study address digitalization and automation in practice by focusing on HR-practitioners and the organizing of automation in HR units at larger organizations in Sweden. Despite several reportsarguing thatautomation technologies will changeHuman Resources,there arefew empirical studies about this transformation. Therefore the aim of the study isto get a deeper understanding of digitalization and automationin HR-units at larger organizations from a Human Resource Development perspective. By using a organizing and situated learning perspective and theories about boundaries and boundary roles, the study have focused on learning and change processes with automation. The study hasa qualitative approach and used a cross-sectional design. Seven semi-structured interviews have been conducted with HR-practitioners from six different organizations. The findings showed that there are contextual differences between the HR departments regarding how they have organized for automation, which have created different conditionsfor change and learning. A key finding is the need for a boundary role between the HR and IT department. The study also showsthat automation does not imply a change in work and competence for all HR-personnel, as there were only a few persons whichjob had been affected by automation.

The subject of this diploma thesis is the design of a conveyor superstructure of a collaborative mobile robot MiR. The first part is a theoretical research basis focused on mobile collaborative technologies and information related to Mobile industrial Robots. The following is a practical part built on previous acquired knowledge. The key issue of the solution is the logistics transport of the PCB magazine in the field of SMT industry. There are created two structural design variants of the superstructure arrangement for the transport of two binders and the most suitable variant is selected on the basis of the multicriteria basic method. The selected alternative of the conveyor top module is then subjected to design calculations. In order to obtain a comprehensive overview of the prototype production, the following section contains drawing documentation, including relevant comments, an economic cost estimate and a risk analysis.

Products with complicated shapes require superior surface finish to perform the intended function. Despite significant developments in technology, finishing operations are still performed semi automatically/manually, relying on the skills of the machinist. The pressure to produce products at the best quality in the shortest lead time has made it highly inconvenient to depend on traditional methods. Thus, there is a rising need for automation which has become a resource to remain competitive in the manufacturing industry. Diminishing return of trading quality over time in finishing operations signifies the importance of having a pre-determined trajectory (tool path) that produces an optimum surface in the least possible machining time. Tool path optimization for finishing process considering tool kinematics is of relatively low importance in the present scenario. The available automation in grinding processes encompass around the dynamics of machining. In this paper we provide an overview of optimizing the tool path using evolutionary algorithms, considering the significance of process dynamics and kinematics. Process efficiency of the generated tool movements are studied based on the evaluation of relative importance of the finishing parameters. Surface quality is analysed using MATLAB and optimization is performed on account of peak to valley height. Surface removal characteristics are analysed based on process variables that have the most likely impact on surface finish. The research results indicated that tool path is the most significant parameter determining the surface quality of a finishing operation. The inter-dependency of parameters were also studied using Taguchi design of experiments. Possible combinations of various tool paths and tool influencing parameters are presented to realize a surface that exhibits lowest errors.
European Horizon 2020 Project SYMPLEXITY

In order to fulfill increasing production rates, new automated production technologies are required for manufacturing carbon fiber reinforced plastic components for the aerospace industry. Currently, large, double curved composite components have to be manufactured manually, which leads to high process times and poor scalability. As a consequence, a team of cooperating robots with passively adjustable end-effectors was developed, that is capable of handling dry carbon textiles and can be used for layups in double curved molds. This thesis deals with the implementation of a robot program, that performs an automated adjustment of each end-effector to the surface geometry of the manufactured part. The functional principle and the accuracy of the process are evaluated. Further, the automatically adjusted end-effectors are utilized to cooperatively layup carbon plies. The results show, that the accuracy of the automated adjusting process is sufficient to drape carbon fabrics during pick-up and automated layup is possible with this approach. In conclusion, the developed process can be integrated into a fully automated process for future experiments, but hardware inaccuracies should be improved, in order to further enhance the accuracy of the system.

Tungsten Inert Gas (TIG) welding is extensively used in aerospace applications, due to its unique ability to produce higher quality welds compared to other shielded arc welding types. However, most TIG welding is performed manually and has not achieved the levels of automation that other welding techniques have. This is mostly attributed to the lack of process knowledge and adaptability to complexities, such as mismatches due to part fit-up. Recent advances in automation have enabled the use of industrial robots for complex tasks that require intelligent decision making, predominantly through sensors. Applications such as TIG welding of aerospace components require tight tolerances and need intelligent decision making capability to accommodate any unexpected variation and to carry out welding of complex geometries. Such decision making procedures must be based on the feedback about the weld profile geometry. In this thesis, a real-time position based closed loop system was developed with a six axis industrial robot (KUKA KR 16) and a laser triangulation based sensor (Micro-Epsilon Scan control 2900-25).

The Friction Stir Welding (FSW) process has been under constant developmentsince its invention, more than 20 years ago. Whereas most industrial applicationsuse a gantry machine to weld linear joints, there are applications which consistof complex three-dimensional joints, requiring more degrees of freedom fromthe machines. The use of industrial robots allows FSW of materials alongcomplex joint lines. There is however one major drawback when using robotsfor FSW: the robot compliance. This results in vibrations and insufficient pathaccuracy. For FSW, path accuracy is important as it can cause the welding toolto miss the joint line and thereby cause welding defects.The first part of this research is focused on understanding how welding forcesaffect the FSW robot accuracy. This was first studied by measuring pathdeviation post-welded and later by using a computer vision system and laserdistance sensor to measure deviations online. Based on that knowledge, a robotdeflection model has been developed. The model is able to estimate thedeviation of the tool from the programmed path during welding, based on thelocation and measured tool forces. This model can be used for online pathcompensation, improving path accuracy and reducing welding defects.A second challenge related to robotic FSW on complex geometries is thevariable heat dissipation in the workpiece, causing great variations in the weldingtemperature. Especially for force-controlled robots, this can lead to severewelding defects, fixture- and machine damage when the material overheats.First, a new temperature method was developed which measures thetemperature at the interface of the tool and the workpiece, based on the thermoelectriceffect. The temperature information is used as input to a closed-looptemperature controller. This modifies primarily the rotational speed of the tooland secondarily the axial force. The controller is able to maintain a stablewelding temperature and thereby improve the weld quality and allow joining ofgeometries which were impossible to weld without temperature control.Implementation of the deflection model and temperature controller are twoimportant additions to a FSW system, improving the process robustness,reducing the risk of welding defects and allowing FSW of parts with highlyvarying heat dissipation.

The thesis deals with the automation of the production process of the workplace for forging of metal parts for a specific customer in a specific environment. In the introduction, there is an analysis of the industrial revolution. In the next part, the thesis is devoted to the virtual commissioning in Process Simulate. It then deals with the technical part of the design and detailed specifications of the individual components. Finally, the success of the project after the implementation is evaluated.

L’impression 3D en construction connait un développement exponentiel dans le domaine de la construction. Cette thèse examine l'utilisation des solutions industrielles existantes pour répondre au besoin de l’impression 3D basé sur l'extrusion dans le secteur de la construction. Il n'existe pas de lignes directrices pertinentes pour l’impression 3D en termes de spécification des machines ou de formulation des matériaux. Une étude prospective a été réalisée afin de comprendre l'aspect multidisciplinaire de l'impression 3D. Les principes de la fabrication additive ont été mis en évidence avec ses avantages, ses applications et ses limites. Le processus d'impression 3D a été formalisé en 5 phases distinctes pour la construction. Ainsi, un cadre de travail pour l'impression 3D dans la construction, basé sur la technique d'extrusion, a été proposé. Une introduction du concept de système de système et un niveau d'automatisation intelligent de l'impression 3D dans la construction ont été proposés. Cette partie a été réalisée en complément du cadre de normalisation de la fabrication additive dans la construction. À l'appui du raisonnement scientifique pour concevoir la solution d'impression 3D appropriée, un système global composé de 5 sous-systèmes a été défini. Une approche expérimentale pour l'évaluation de l'imprimabilité a été développée. Elle a consisté en des tests simples et une analyse sans dimension pour caractériser l'imprimabilité des matériaux cimentaires à l'aide d'indicateurs spécifiques. Une tête d’impression a été conçue sur la base de fonctionnalités d'entrée telles que la possibilité d'activer un matériau inerte dans la tête et un contrôle du flux du matériau sortant
3D printing in construction is growing exponentially. This thesis examines the use of existing industrial solutions to meet the need for extrusion-based 3D printing in the construction sector. There are no relevant guidelines for 3D printing in terms of machine specification or material formulation. A prospective study has been carried out to understand the multidisciplinary aspect of 3D printing. The principles of additive manufacturing were highlighted with its advantages, applications and limitations. The 3D printing process was formalized in 5 distinct phases for construction. Thus, a framework for 3D printing in construction, based on the extrusion technique, was proposed. An introduction of a system of system concept and an intelligent level of automation for 3D printing in construction were proposed. This part was realized as a complement to the standardization framework for additive manufacturing in construction. In support of the scientific reasoning to design the appropriate 3D printing solution, an overall system consisting of 5 subsystems was defined. An experimental approach for the evaluation of printability was developed. It consisted of simple tests and dimensionless analysis to characterize the printability of cementitious materials using specific indicators. A print head was designed based on input functionalities such as the possibility to activate an inert material in the head and a control of the outgoing material flow

In today's industry it is of mayor concern to keep the manufacturing processes as effective and flexible as possible. The usage of robots and automatic technology is a much known way to achieve the goals of rationalization. The disadvantage lays in the fact that implementation of robots is usually a very resource consuming task. However, in some circumstances a solution to this matter may be to simply implement mobile robots instead of fixed robots. The task of this project is to successfully control and understand the system of a mobile robot in a automatic manufacturing process.

Etude de l'adequation d'une installation de parachevement robotise prenant en compte les differents elements de l'usinage: le robot, l'outil de coupe, les conditions de coupe, l'actionneur de l'outil, le support de l'outil, les capteurs, etc. . .

Orientador: João Mauricio Rosario
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: Neste trabalho foi projetado, desenvolvido e implementado um sistema de controle programável flexível, para aplicação principal no controle de manipuladores e robôs industriais. Como método de abordagem global de um problema de controle automático, podemos dividí-lo em quatro partes principais, a primeira sendo a medição, aquisição e tratamento das grandezas a controlar, a segunda sendo o algoritmo de controle e o sistema de acionamento, a terceira sendo a automatização via programação e simulação de trajetórias e tarefas, e finalmente, a quarta parte sendo a interface homem-máquina. Sendo assim, subdividiu-se o sistema de controle desenvolvido em quatro módulos principais, sendo eles, o módulo de Monitoramento e Supervisão, o módulo de Controle e Acionamento, o módulo de Programação e Simulação e o módulo de Interface com o Usuário; por sua vez, estes módulos são compostos por vários sub-sistemas modulares, que foram projetados, desenvolvidos e testados separadamente, para que fossem flexíveis e confiáveis, tendo sido integrados em seguida, de várias maneiras, de modo a atender às características específicas de cada aplicação. Dentre os sistemas desenvolvidos, temos, por exemplo, interfaces de interface de entrada e saída de dados digitais, interfaces de supervisão de posição, interfaces de acionamento de potência, interfaces de decodificação de sinais de encoders; programas de testes para as interfaces desenvolvidas, programa de interface gráfica para utilização pelo usuário, e outros. Numa aplicação típica, no controle de um robô industrial, podemos ter diversos tipos de atuadores, sensores, mecanismos e arquiteturas do sistema mecânico a controlar, assim, com a substituição de alguns módulos, obtêm-se uma integração flexível que atende as necessidades de cada caso, sem que seja necessário um sistema de controle completamente novo, tomando a automação mais simples, eficiente e rápida. Por exemplo, na automação de um robô, podem ser necessários dois computadores, para que as cargas de processamento de dados de controle e a carga de processamento da interface gráfica com o usuário possam ser divididas entre estes; porém, numa aplicação, como o posicionamento de uma câmera de vídeo, a simplicidade do sistema mecânico, permite a utilização de um único computador, ou mesmo, uma interface dedicada, sendo mantida toda a estrutura global do sistema de controle
Abstract: In this work, it has been designed, developed and implemented a programmable flexible control system, for main application in the control of manipulators and industrial robots. As a global approaxing method for an automatic control problem, we can divide it in four main parts, the first beeing the measument, aquisition and treatment of the variables to control, the second beeing the control algorithm and the actioning system, the third beeing the automation throw programming and simulating of jobs and trajectories, and finally,the fourth beeing the man-machineinterface. Thus, we divided the developed control system in four main modules, which are, the Monitoring and Supervising module, the Actioning and Control module, the Simutation and Programming module and the User's Interface; which are compound by various modular subsystems, that were designed, developed and tested separately, so that they would be dependable and flexible, beeing then integrated, in many ways, to full-fill the specific caracteristics of each application. Within the developed systems, we have, for example, digital data input and output interface boards, position supervising boards, power driving boards, encoder sinal decodifying boards; test programs for the developed boards, graphics interface program to be utilized by the user, and others. In a tipical application, in controlling an industrial robot, we can have many diferent types of actuators, sensors, mechanisms and architectures of the mechanical system to control, thus, by substituting a few modules we can obtain a flexible integration that answers to the needs of each case, without the need of a completely new control system, making the automation more simple,eficient and fast. As an example, in the automation of a robot, may be neccessary two computers, so that the data processing loads of control and the user's graphics interface processing load can be divided between these, but, in an application, like a vídeo camera positioning, the simplicity of the mechanical system, enables the use of only one computer, or even, a dedicated board, beeing keept the global structure of the control system
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica

This diploma thesis deals with the design of a robotic workplace for deburring of a given part. The robot's task is to remove the machined part from the production machine, create a blank workpiece ready for machining, and finally deburr the the machined part. There are several proposals for the layout of the robotic cell, as well as the design of the end effector, the input tray for semi-finished products and a stand with tools for deburring. Subsequently, a simulation model of the designed robotic cell is created in the Siemens Process Simulate software. Using RSC modules, the exact resulting cell clock is determined. The whole process of creating a simulation model is detaily described. At the end of this thesis is an economic evaluation of the proposed solution.

L'attività di tesi è stata svolta su una riempitrice farmaceutica. L’obiettivo di una macchina riempitrice farmaceutica è quello di processare prodotti farmaceutici. In particolare la macchina riceve in input le unità prodotto vuote e attraverso un processo automatizzato vengono effettuati su questi prodotti varie operazioni. L’obiettivo finale è quello di avere in uscita dalla macchina tutte le unità prodotto contenente il medicinale e pronte per essere utilizzate dal cliente. La macchina in esame è suddivisa in varie unità. Ognuna di esse ha l’obiettivo di eseguire una certa operazione sulle unità prodotto. Durante l’attività di tesi si è posta particolare importanza su un’unità della macchina. Questa unità ha il compito di estrarre tutte le unità prodotto che arrivano all'interno dei contenitori e depositarli su delle basi. Da queste basi l’unità a valle eseguirà la sua lavorazione. In particolare, si è posta la maggior attenzione su unità prodotto contenuti in tray come ad esempio flaconi. Il problema è che questi flaconi si presentavano all’interno dei contenitori in maniera capovolta. L’ obiettivo era quello di fornirli all’unità successiva in maniera non capovolta. Il problema è stato affrontato impiegando un robot antropomorfo a sei assi. È stato inoltre interfacciato per la prima volta al robot un asse esterno aggiuntivo che coordinandosi con il robot permette di effettuare il ribaltamento dei flaconi. È stata infine sviluppata una soluzione capace di gestire e processare qualsiasi tipo di unità prodotto.

• Für eine exakte Lichtbogenpositionierung zum Schweißpunkt werden beim Roboter – WIG-Schweißprozess folgende technische Anforderungen am Brennerkopf und dessen Wechselsystem gestellt wie: konstante Wärmeableitung und -führung im Brennerkopfbereich, schnelle Wechsel von Verschleißteilen insbesondere der Kathode, reproduzierbare Wechsel der Schweißbrennerköpfe. • Entwicklung eines neuartigen physikalischen Wirkprinzips auf Basis der Wärmeableitung – Heatpiperohr zur Gestaltung einer optimierten Wärmebilanz und Brennerkopfkühlung. • Mit dem entwickelten thermo – strömungs-mechanischen/magneto-hydro-dynamischen FE-Modells wurde die technisch-konstruktive Brennerkonstruktion mit der integrierten Wärmeableitung – Heatpiperohr für ein äußerst effektives Brennerkühlsystem unter Variation der Schweißprozessparameter zur Erzielung einer höheren Brennerdauerbelastung prozesstechnisch untersucht, analysiert und erkenntnisbezogen optimiert. • Beeinflussbar sind Lichtbogenausbildung, dessen Intensität, Verhalten sowie Temperatur- und Strömungsverhältnisse durch Prozessparameter.

碩士
建國科技大學
自動化工程系暨機電光系統研究所
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Most of the early traditional industries adopted manual methods to check the finished products. However, due to low sampling rate or human factor, the finished products often had quality problems and thus caused serious losses. For the current machining industry, the inspection of the finished products by sampling inspection has not met the market demand, and the development of the full inspection mode is the trend of improving quality. However, if the full inspection is performed manually, it is laborious, time consuming, and costly. In addition, with the rise of smart manufacturing, CNC machining has introduced robotic arms. Although some CNC equipment manufacturers have integrated robotic arms, they are only used for loading and unloading of workpieces. As for the transportation, inspection and classification of the back end of the machining process, there is no automation. Therefore, the purpose of this thesis is to apply artificial intelligence and robotic arm to solve the anomaly detection and the automation of CNC machining processes. The deep learning model of this thesis is based on VGGNet and is modified for promoting predicting accuracy. The well-trained deep learning model is implanted into the Raspberry Pi 3 as the host of the artificial intelligence visual detection system. Further, the artificial intelligence visual detection system is integrated with a robotic arm to solve the problem of the automation of transportation, anomaly detection and classification after the CNC machine tool is unloaded. The system has been tested to perform well, and it takes about 8 seconds to detect a workpiece and its prediction accuracy is 100%. It is expected that the results of this study will help the system function and machining quality of CNC machine tools and increase their market competitiveness.

This thesis provides the design process for a new tooling ball detection method to calibrate moulds in automatic TIG welding. A mechanical component is designed to locate the tooling ball and convert the position information into analog signals. An electrical component is designed to process signals from the mechanical component and achieve the signal communication process. Finally, the computational component is designed and programmed to receive bits from the electrical component and convert information into position values for the tooling ball. The homogeneous transformation process is mathematically modeled for position computation in a robot system. The method is significantly different from current methods that have been developed and applied. Firstly, it uses a mechanical-touch style operation to locate the tooling ball with only a one-time detection operation. Secondly, it introduces a new approach for utilizing the joystick. Rather than as a manually operated direction controller for mobile control of devices, the joystick is used as a passive detection angle sensor. In order to properly use the joystick as an angle sensor, the joystick calibration method is also designed and tested. The designs of the three components are all implemented and tested separately. The results of these tests prove the feasibility of the new detecting method; however, the accuracy of detection is not yet acceptable and further improvements need to be made. In addition, a vision-based detecting method is also discussed at the end of the thesis. Compared to mechanical touch-style detection, the vision-based detecting method is designed to obtain better performance in a high temperature environment and to automate the tooling ball detecting process.