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Taktningsutrustning till Ljungbymaskin
Halmstad University, School of Business, Engineering and Science.
Halmstad University, School of Business, Engineering and Science.
2017 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This bachelor thesis was made on behalf from the wheel load maker Ljungby Maskin AB. Ljungby Maskin is right now in an expansive stage with a development of the welding workshop and the paint shop. In relationship to this they are also changing from station assembly to production line. Because of the progress they have needs of some type of transport method. The first step of the project was to decide what method that should be used. Rune Andersson, one of the supervisors in the project was at first into using air caster/air bearings to transport the production. However after some research the result was that air caster wasn’t the best method to use.  To make this conclusion a visit at Atlas Copco was made to see their production lines and a discussion with the production developer at AC was made. After the method was decided, the design of the fixtures could be made. The method to make the design was principle and primary design by Fredy Olsson. The output from this gave in total 12 different constructions. Pugh-matrix was made at the different constructions to be sure which one that should be used.  Complete CAD-models were made for the constructions that got the highest mark. Through a product draft it was determined which details that should been bought and which should be self-designed. Complete detail constructions were made at these parts. To ensure the strength of the parts, FEM-analysis was made in CATIA V5. The conclusion was that the project will be a good support in the development of the new assembly workshop at Ljungby Maskin AB and that it will contribute to a smaller storage and increase the production. 

Abstract [sv]

Examensarbetet har gjorts på uppdrag av Hjullastartillverkaren Ljungby Maskin AB. Ljungby Maskin är just nu i en expansiv fas med utbyggnad av bland annat svetsverkstad och lackering. I samband med detta skall de även byta från stationsmontering till produktionslina. Det finns då behov av någon typ av transportmetod för att förflytta hjullastarna. Första steget i projektet var att bestämma vilken typ av flyttmetod som ska användas. Rune Andersson en av handledarna vid Ljungby Maskin, var från början inne på att använda luftkuddar som flyttmetod. Efter att bakrundstudien var gjord visade det sig att detta inte var den metod som lämpade sig bäst för detta projekt.  För att komma fram till detta gjordes bland annat ett studiebesök på Atlas Copco där granskade deras produktionslinor och diskussion fördes med deras produktionsutvecklare.  När transportmetoden var bestämd konstruerades fixturerna utifrån detta. Metoderna som då användes var framför allt Fredy Olssons Princip- och Primärkonstruktion. Detta resulterade i totalt 12 olika konstruktioner. Pugh-matriser gjordes på de olika konstruktionerna för att konstatera vilka konstruktioner som skulle användas. Fullständiga CAD-modeller togs fram på de konstruktioner som fått högst betyg. Via produktutkast bestämdes det vilka delar som skulle köpas in samt konstrueras själva. Kompletta detaljkonstruktioner gjordes på dessa delar. För att säkerställa detaljernas hållfasthet gjordes FEM-analyser i CATIA V5. Slutsaten blev att projektet kommer vara ett bra underlag i Ljungby Maskins utveckling av den nya monteringen och bidra till att kunna minska lagret samt öka produktionen. 

Place, publisher, year, edition, pages
2017.
Keywords [sv]
Taktningsutrustning, hjullastare, Ljungby maskin, produktionsutveckling, konstruktion
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hh:diva-34796OAI: oai:DiVA.org:hh-34796DiVA, id: diva2:1135989
External cooperation
Ljungby Maskin AB
Subject / course
Mechanical Engineering
Educational program
Mechanical Engineering, 180 credits
Supervisors
Examiners
Available from: 2017-09-04 Created: 2017-08-24 Last updated: 2018-02-22Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf