DETERMINING THE POSITIONS OF THE ELEMENTS FOR THE 3-2-1 PRINCIPLE OF LOCATION IN A SOLIDWORKS ADD-IN

This paper presents the methodology behind the positioning of modular fixtures (for the 3-2-1 principle in particular) in a CAFD application (add-in) for SolidWorks. The application is integrated into SolidWorks and it’s used to automate the design process of modular fixturing devices. Part of it is a methodology for automated determination of the positions of the modular elements by using rule-based logic and mathematical formulas.

Configuration of modular fixtures in manufacturing

The article presents construction and the assembly of designed modular handles. The work appoints, in variant mode, costs of handles of the elements for the same type subjected to machining. The applied methodology can be used, inter alia, in the process of engineering education of technologic mechanics.

AN INTEGRATED RBR FIXTURE DESIGN SYSTEM

Traditionally fixture design processes are costly and time-consuming when carried out manually. To try to reduce the negative features, we are creating a computer-aided fixture design system, integrated in the SolidWorks’ environment. This system uses rule-based reasoning in the form of If-Then-Else rules, incorporated in its VB.NET code. This paper presents our progress in the form of an interactive add-in program for locating parts. This program generates modular fixtures for locating prismatic or cylindrical parts, using rules and mathematical equations. Its usage can shorten the time needed for determining the type and position of every module of the fixture, their assembling, and inspection.

Experimental Research Regarding Static Rigidity in Transversal Direction of “Narrow“ Modules from Modular Fixtures Structure

In the paper a research methodology was developed and used to determine the rigidity in transversal direction of modular fixture structures. The paper presents experimental results regarding the total deformation of modular structure consisting of ”narrow” modules from modular kits. The research conducted showed the different evolution of deformation curves in the case of modular structure, with different shape and different sizes of modules, in the case of similar loads. The experimental results indicate displacements of the entire modular structure alongside the base plate and, also, tilting. The measured deviations of modules from fixture structure may cause "dimensional"/ position deviations (linear displacement of the measurement base) and deviations of shape and orientation-position (angular displacement of the measurement base) of the workpiece during severe machining conditions.