Abstract
A systematic approach to the generation of fixture location layouts is presented. Expert technicians are capable of determining a fixture layout appropriate to the given workpiece and the given operation. A fixture planning system must have this capability in order to automate the holding process. In this article, we will develop a computational procedure that can derive fixture layouts for various workpieces. First, fixture layouts are represented by a topological relationship between the workpiece and a set of fixtures. Secondly, static properties at each layout are formulated using the cone theory. Next, a condition for reliable clamping is derived and a procedure to investigate this condition based on the model of the workpiece is developed using the cone theory. Finally a simple example is given to demonstrate the process of computing possible fixture layouts.
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