Design and Fabrication of CNC Lathe Fixture for Cone

Abstract

Fixture is a device that supports, and holds the workpiece for operation or process but does not guide the cutting tool. It allows only a reference to a surface or a tool. Fixtures are unique because each of them is built to fit a specific part or shape. This paper presents design and fabrication of fixtures for tapered or conical workpieces. Operations that can be performed with this fixture are front-facing, drilling and boring. Fixture is designed with minimum number of components. Mild steel is selected for manufacturing because of its composition which is Fe 98.0%, C 0.04%, Mg 1.03%, Si 0.280%, Cu 0.20% P 0.04.There are various types of fixtures are available to hold various shapes of workpieces. The aim is to design and fabricate a fixture that can hold a conical or tapered body. Fixture design process is done on SolidWorks and stress, strain and displacement analysis are also carried out. The results are 2e+011 N/m² maximum stress. 0.0153602 mm maximum resultant displacement and 0.000484712 is maximum equivalent strain. After desired results are analyzed, manufacturing of designed fixture is performed on lathe machine. This research has discussed design and manufacturing in-depth in different types of terminology. This terminology shows the study, goals, methodology and design analysis as well as the outcome, result and conclusion.