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Offline Programming of Robots in Car Seat Production
University West, Department of Engineering Science, Division of Automation and Computer Engineering.
2013 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Company Purtech in Dals-Ed manufactures molded polyurethane (PUR). Examples of products that include polyurethane are car seats. Robots are used to fill the molds with PUR and to apply the release agent (wax) in the empty molds.

Turning from online programming into a graphical offline programming of release agent spraying robots is going to simplify the process by:

  1. Applying less of release agent to avoid polluting environment, to produce an easier removal of moulds, for the sake of homogeneous moulds and for economical saving in the cost of release agent
  2. Adaption of spraying paths to variation in production speed.
  3. Programming of complex spraying trajectories to deal with sharp geometrical subsurface
  4. Decreasing onsite programming time (when program a new workpiece or modify an old one); so that robots would be free for production.

While turning into offline programming brought the challenges of:

  1. Impact of variation in the production speed
  2. Lack of 3D models of workcell’s equipments
  3. Robot joint configuration when paths and robtargets are in move.
  4. Physical Joint limits, Singularities & Reach limits
  5. Collisions within the cell space.

At the end, the following objectives are successfully met:

  1. Adaption of spraying programs to variation in production speed by developing and embedding a method in those programs.
  2. Graphical offline generation of spraying trajectories and optimization of those trajectories to the Purtech condition of spraying allowed time for each carrier.
  3. Simulation of release agent spraying process; and producing of a well structured RAPID program that reflect the simulated process.

          

Place, publisher, year, edition, pages
2013. , 48 p.
Keyword [en]
robot, spray, wax, polyurethane, offline programming, release agent
National Category
Robotics
Identifiers
URN: urn:nbn:se:hv:diva-5415OAI: oai:DiVA.org:hv-5415DiVA: diva2:635121
Subject / course
Robotics
Educational program
Robotteknik
Presentation
2013-06-03, Celsius, PTC, TROLLHÄTTAN, 14:57 (English)
Supervisors
Examiners
Available from: 2013-09-16 Created: 2013-06-12 Last updated: 2015-09-15Bibliographically approved

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Offline Programming of Robots in Car Seat Production(4071 kB)777 downloads
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File name FULLTEXT01.pdfFile size 4071 kBChecksum SHA-512
be741ae21ed2f4ff4798127bdb2a7662df7ce66f40dcf0b1584681e6cd8d0a7b6fa8b0078c3a50db2f92d5341a79e18a8052f19253e72b7a3d57371f237df5db
Type fulltextMimetype application/pdf

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Division of Automation and Computer Engineering
Robotics

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Citation style
  • apa
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