Record Details

An Integrated Approach for Fixture Layout Design and Clamping Force Optimization

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title An Integrated Approach for Fixture Layout Design and Clamping Force Optimization
 
Creator F, Michael Thomas Rex
D, Ravindran
A, Andrews
B, Prince Abraham
 
Subject Contact forces
Finite element analysis
Fixture design
Genetic algorithm
 
Description 1204-1216
Fixture Layout Design (FLD) determines the specific position of locators and clamps to orient and holds the workpiece
with respect to a machine tool. The FLD approaches that use Finite Element Analysis (FEA) have been widely used in
previous works and have become computationally expensive and specific to a particular problem. Further, the FLD and
clamping force optimization were often performed separately by ignoring their interdependence. In the present work, the
locators' contact forces are uniformly distributed by suitably varying the fixture layout and clamping force to maximize the
part dimensional and form quality. The parametric rigid body model is used to depict the behaviour of the workpiece-fixture
system, and it is incorporated with the genetic algorithm to optimize the design variables. A prismatic workpiece with
pocket milling operation is considered to validate the proposed methodology. Stability criterion and tool-fixture interference
are considered constraints. Subsequently, FEA is used to verify the integrity of the proposed approach. The results infer that
the uniform distribution of maximum elastic deformation is achieved due to the uniform distribution of contact forces. The
suggested approach is proven effective for designing a milling fixture to manufacture components with high dimensional
and form precision.
 
Date 2022-11-24T05:50:49Z
2022-11-24T05:50:49Z
2022-11
 
Type Article
 
Identifier 0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/60916
https://doi.org/10.56042/jsir.v81i11.46354
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source JSIR Vol.81(11) [Nov 2022]