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Increase of efficiency at Philmac Pty Ltd: diagnostic study, analysis and efficiency optimisation of an intelligent robotic assembly cell
2001 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The objective of this project is to increase the efficiency and decrease the amount of shift-work without reducing capacity, in a flexible robotic assembly cell at Philmac Pty. Ltd. The company produces products for water supply and irrigation. The project involves areas like automated assembly, design for assembly, work environment analysis, and organisational changes. The assembly cell consists of two ABB assembly robots, rotary bowls, rotary indexing tables, and pneumatic pick and place robots. This project is a proceeding of an earlier time and motion efficiency study at Philmac. The analysis identified the problems and bottlenecks that existed for the three lines in the assembly cell. The analysis is based upon three stages, which each commences from collation of random samples and video evidence. At the end of the two first stages, solutions have been implemented and evaluated. The last stage contains an analysis of the operators work procedure and the way of measuring the efficiencies. Through the project the reliabilities for cell have been raised to over 97.4 percent. However, the low machine efficiencies where not only due to technical and quality issues. There seemed to be a big problem with the measurement methodologies and the operators' attitude towards attending the cell. A new method for measuring the efficiencies and a work procedure guideline has been conducted to help the company to reach the objectives. The project reached the point when further technical improvements and elimination of problems will require capital investment and become very expensive, due to some basic failures in the initial design. A better approach is to reduce the downtime by organising work of the operators in better way and to plan simultenous work of two lines to optimise operators utilisation.

Place, publisher, year, edition, pages
2001.
Keyword [en]
Technology, Automated assembly, Automatisk montering, Design for, assembly, Human factors, RULA, Work environment analysis, Organisational changes, Organisations förändringar, ABB, Cell, Measuring, Effektivitetsmätning, robotar, Produktionsteknik
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-43057ISRN: LTU-EX--01/005--SELocal ID: 0f97765a-e314-4ee4-8216-68a2c847b413OAI: oai:DiVA.org:ltu-43057DiVA: diva2:1016285
Subject / course
Student thesis, at least 30 credits
Educational program
Industrial Engineering and Ergonomics, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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