Presentation on theme: "เทคโนโลยีการสร้างอุปกรณ์จับยึด"— Presentation transcript:
1เทคโนโลยีการสร้างอุปกรณ์จับยึด Types and Functions of Jigsอ.ธรรม์ณชาติ วันแต่ง สาขาเทคโนโลยีการผลิต มหาวิทยาลัยราชภัฏเพชรบูรณ์
2Objectives Identify the classes of jigs and fixtures Identify the types of jigs and fixturesChoose a class and type of jig and fixture for selected operations on sample parts
3Jigs and Fixtures The difference between jig and fixture Both jigs and fixtures hold, support, and locate the workpieceThe difference is in the way the tool is guided to the workpiece.A jig guides the cutting toolA fixture references the cutting tool
4Jig and Fixture DesignJig: A device that holds the work and locates the path of the tool.Fixture: A device fixed to the worktable of a machine and locates the work in an exact position relative to the cutting tool.
5Jigs and FixturesThe difference between jig and fixture
6Jigs Classes of Jigs Jigs may divided into two general classes Boring jigs:used to bore holes or drill in odd sizeDrilling jigs:used to drill, ream, tap, chamfer, counterbore, countersink, reverse spotface, or reverse countersinkThe difference is in size of bushing used