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Automated Production of Air to Air Heat Exchangers: Robot Cell Design and Simulation
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Industrial Engineering & Management.
2017 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The aim of this thesis was to describe how a manual assembly process of polycarbonate sheets for heat exchangers can be automated with an industrial robot. The objectives were to design suitable robot cell concepts and simulate them to describe how the automated process could be done and to present which machines and equipment that could be used. Additionally, productivity rates and investment costs was to be calculated.The project started with a situation assessment and a literature review. Experts and suppliers of robotic equipment were consulted, and the results served as a basis for the concept generation process. Several concept ideas were evaluated, and three ideas using adhesive for the assembly were chosen for further studies and simulation. Existing products and machines were used in the designs when possible. By modeling and simulating the cells in simulation software, feasible cell designs was created, and cycle times were measured.The three proposed solutions all utilize an industrial robot, a vacuum gripper and adhesive as the assembly method. Two of the concepts has the robot attending different adhesive dispensing machines; one gantry and one conveyor. In the third concept, the robot applies the adhesive. The cell design that achieved the lowest cycle time in the simulations was the conveyor concept, with a cycle time of 21 seconds per sheet. The conclusion of the study is that investing in a robot cell would increase productivity.

Abstract [sv]

Syftet med detta arbete var att designa en robotcell anpassad för tillverkning av värmeväxlarpaket i moduler. Målet var att besvara hur tillverkningen av värmeväxlare kan automatiseras samt vilken robot och övriga verktyg och maskiner som kan användas. Vidare skulle den möjliga produktionstakten och investeringskostnaden för designförslagen beräknas. Arbetet inleddes med en nulägesanalys och en litteraturstudie. Ett flertal experter och leverantörer inom automationsområdet konsulterades. Resultaten från detta låg till grund för en konceptgenereringsprocess i vilken ett flertal designidéer togs fram. Tre av dessa designförslag valdes ut för vidare studier och simulering. Genom att modellera och simulera robotcellerna kunde de utformas realistiskt och möjliga cykeltider beräknas. De tre designförslagen använder alla en robotarm, ett vakuumgripdon samt lim som metod för monteringen. Två av koncepten består av en medelstor robotarm som betjänar en limappliceringsmaskin. I ena konceptet är det en kartesisk robot med limbord som används för limappliceringen, i det andra är det ett transportband som för plastskivan under ett antal limpistoler. Det tredje designförslaget låter en större robot, utrustad med verktygsväxlare, utföra alla moment i processen genom att den byter verktyg mellan vakuumgripdon och limpistol. Det koncept som uppnådde den lägsta cykeltiden i simuleringarna var lösningen med rullbandet, med en cykeltid på 21 sekunder per skiva. Studiens slutsats är att en investering i en robotcell skulle leda till ökad produktivitet jämfört med manuell produktion.

Place, publisher, year, edition, pages
2017. , p. 65
Keywords [en]
Automation, Simulation, Robot cell design, Adhesive dispensing, Vacuum gripper
National Category
Mechanical Engineering Robotics
Identifiers
URN: urn:nbn:se:uu:diva-326182ISRN: UTH-INGUTB-EX-M-2017/24-SEOAI: oai:DiVA.org:uu-326182DiVA, id: diva2:1119297
External cooperation
Robotdalen; Energy Machines Sweden
Educational program
Bachelor Programme in Mechanical Engineering
Supervisors
Examiners
Available from: 2017-07-04 Created: 2017-07-03 Last updated: 2017-07-04Bibliographically approved

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CiteExportLink to record
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