Earticle

초록

영어

The design of machining fixtures is a highly complex process that heavily relies on designer experience and his/her implicit knowledge to achieve a good design. The determination of fixturing scheme is an optimizing problem with multi-objective and multi-constraint. In order to evaluate the fixturing scheme objectively, a fixturing design scheme selection objective system is developed according to the feature of multi-level and multi-index of fixturing design scheme. With location accuracy, contact force, workpiece deformation and successive fixturing as the objective functions, the optimization selection of mathematical model of fixturing design scheme is established, then it is solved by gray relation analysis and analytic hierarchy process. The method provides a qualitative and quantitative combining analysis for a fixturing design scheme: (a) verifying whether a particular fixturing scheme is valid with respect to locating stability, deterministic workpiece location, clamping stability and total restraint and (b) determining the optimal fitness value based on integrate performances. An example is presented to demonstrate the effectiveness and the capabilities of the methodology. The study shows the gray relation analysis and the analytic hierarchy process can improve selecting quality for determination of fixturing design scheme.

목차

Abstract
 1. Introduction
 2. Two Basic Requirements for The Fixturing Scheme
  2.1. Location correctness constraint
  2.2 Static equilibrium constraint
 3. Quality Performance Indexes
  3.1 Locating accuracy index
  3.2 Contact Forces Distribution Index
  3.3 Workpiece deformation index
  3.4 Successive Fixturing Index
 4. The Gray Relation Analysis of Fixturing Scheme
 5. Case Study
  5.1 Workpiece and fixture element properties
  5.2 Candidate fixturing design schemes
  5.3 Optimal selection of fixturing design scheme
 6. Conclusion
 Acknowledgements
 References

키워드

저자

• Tiejun Wu [ Department of Mechanical and Electronics Engineering, Dongguan Polytechnic, Dongguan, China Department of Electronics and Mechanical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605