Locating correctness analysis and modification for fixture design

G. H. Qin, W. H. Zhang, M. Wan, S. P. Sun, T. J. Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In machining processes, geometric accuracy of a manufacturing workpiece mainly relies on the relative position of workpiece to the machining tool. Fixtures are needed to locate the workpiece relative to the machining tool in order to guarantee the manufacturing quality. Therefore, correct locating is the basic condition for designing a fixture. In addition, computer aided fixture design (CAFD) facilitates more cost effective and efficient fixture design. However, heuristic and case-based methods are still common. This paper firstly presents a general framework to verify the locating correctness so as to soundly determine locator number and positions. Secondly, within the scope of CAFD, a computing tool is developed within the Unigraph system for the correctness analysis of fixture locating schemes. Finally, a detailed discussion is made about the modeling process and its verification by means of practical examples. Analyzing results are consistent with practical ones.

Original languageEnglish
Title of host publicationAdvanced Design and Manufacture to Gain a Competitive Edge
Subtitle of host publicationNew Manufacturing Techniques and their Role in Improving Enterprise Performance
PublisherCSREA Press
Pages561-562
Number of pages2
ISBN (Print)9781848002401
DOIs
StatePublished - 2008
EventAdvanced Design and Manufacture to Gain a Competitive Edge: New Manufacturing Techniques and their Role in Improving Enterprise Performance - Sanya, Hainan, China
Duration: 14 Jan 200816 Jan 2008

Publication series

NameAdvanced Design and Manufacture to Gain a Competitive Edge: New Manufacturing Techniques and their Role in Improving Enterprise Performance

Conference

ConferenceAdvanced Design and Manufacture to Gain a Competitive Edge: New Manufacturing Techniques and their Role in Improving Enterprise Performance
Country/TerritoryChina
CitySanya, Hainan
Period14/01/0816/01/08

Keywords

  • Computer aided fixture design
  • Degree of freedom
  • Fixture model
  • Locating correctness

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