Parametric Design of a Jig & Fixture Using CAE and FEM Analysis of Positioners and Clamping

DOI : http://dx.doi.org/10.13005/msri/030204

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Use of Jigs and fixtures can guarantee the proper fixation and positioning of cutting tools with respect to work piece during the entire manufacturing process, helping in manufacturing of identical parts at required accuracy and production speed. In this paper, parametric modelling of a jig and fixture for drilling a cylindrical part, with mounting surface perpendicular to the cutting tool, has been carried out in CAE. The stability condition of the work piece during the drilling process has been evaluated by studying the forces due to the cutting tool and the clamp on the work piece, using the built-in FEM tools. The plastic deformation of the work piece must be prevented, and the elastic deformation should be such that it does not cause separation of the work piece from the positioner. Results show the high potential of the software in such design and modelling practices. A static analysis of the work piece secured in a jig and fixture has been performed to obtain the applied loads accurately and quickly. This helps prevent the extra cost incurred due to improper design.

Jig and fixture; Positioning, Clamping; Finite element