DESIGN AND DEVELOPMENT OF A JIG WITH MULTIPLE DRILLING

Mass production aims at high productivity to reduce unit cost, and interchangeability to facilitate easy assembly. It could be achieved by the use of jigs. Jigs are provided with tool guiding element such as drill bushes. Drilling jig is used whenever is necessary to drill hole to exact location. So for multiple drilling operation at different position on a same work piece, such jigs are made for accurate, precise drill operation in this project. Also jig reduces the repetitive nature required for drilling holes, because the locating, clamping and guiding of the drill bits are done by the jig itself. The basic element in this design are holding the work piece, clamping and positioning the drills with drill bushes. The scope of this paper is to design a jig for multiple drilling (i.e. Four) in a work piece in single stroke in which the four drill chuck assembly is fixed with a CNC ram. Such the design is validate and verified. The present paper entitled “Design and development of a jig with multiple drilling in single stroke” is work done for design an analysis.The modeling is done on CATIA V5.