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Uint 2 jigs and fixtures
This document discusses different types of jigs and fixtures used in manufacturing. It describes various elements of jigs like the jig body, feet, drill bush, and plate. It then lists and describes common types of jigs like boring jigs, drill jigs, and template jigs. It also discusses different types of fixtures like plate fixtures, angle plate fixtures, vice-jaw fixtures, and multi-station fixtures. Finally, it covers fixtures for specific machine operations like turning, milling, boring, and welding fixtures.
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Uint 2 jigs and fixtures
- 1. S.DHARANI KUMAR Asst.professor Department ofMechanical Engineering Sri Eshwar college of Engineering ,Coimbatore. UNIT-2 JIGS AND FIXTURES
- 2. • Jig body •Jig feet • Drill bush • Jig plate • Locators • Clamps ELEMENTS OF A JIG
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- 4. Types of jigs •Boring Jig • Drill Jig • Template Jig • Plate Jig • Sandwich Jig • Latch or Leaf Jig • Channel Jig • Box Jig • Post jigs or Angle plate Jig • Angular post Jig • Turnover jig or Table type Jig • Pot Jig • Solid Jig • Trunnion Jig • Indexing Jig • Universal Jig • Pump Jig • Multi Station Jig
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- 13. Latch or LeafJigs
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- 19. Post Jigs • Verticalposition of Post • Horizontal position of Post
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- 23. Turnover Jigs orTable Type Jigs
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- 30. Automatic Drill Jigs Mechanical Pneumatic or Air operated Hydraulic operated
- 31. Rack and PinionOperated Drill Jigs
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- 33. TYPES OF FIXTURES •Plate Fixtures • Angle Plate Fixtures • Vice –jaw Fixture's • Multi station fixtures • Profiling Fixtures
- 34. Plate Fixtures • Fixtureis made from a flat plate that has variety of clamps and locates to hold and locate the part . • Simplicity of this fixtures makes it useful for most machinery operations . • Plate fixtures are designed to machine larger, heavier parts than vise-held fixtures.
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- 36. Designing a platefixture 1. The part is rough casting approximately. 2. The approximate wall thickness . 3. The part has no prior machining. 4. The material is cast aluminum. 5. The operation required is to gang milling the surface. 6. The fixture is for production run. 7. The blank is received in it cast condition .
- 37. Designing an angleplate fixture 1. The part is rough casting approximately. 2. The part has a machined base with four 10 mm holes. 3. The material is specified is a cast brass. 4. The fixture is for production run. 5. The operation required is boring. 6. The part received for this operation has been milled and drilled on the bottom surface. 7. The part has a cored hole of 20 mm diameter approximately .
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- 39. TYPES OF FIXTUREBASED MACHINE AND OPEARATION • Turning Fixture • Milling Fixture • Boring Fixture • Broaching Fixture • Grinding Fixture • Assembly Fixture • Inspection Fixture • Welding Fixture • Modular Fixture systems • Quick change Fixtures
- 40. LATHE OR TURNINGFIXTURE • Faceplate Turning Fixture • Built Up Turning Fixture
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- 42. Built Up TurningFixture
- 44. MILLING FIXTURE • PlainMilling Fixture • Line Milling Fixture • Gang Milling Fixture • Key-way Milling Fixture • Indexing milling fixture
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- 51. BORING FIXTURE • Stubbar Boring • Single - Piloted bar Boring • Double - Piloted bar Boring
- 52. Single - Pilotedbar Boring
- 53. Double - Pilotedbar Boring
- 54. BROACHING FIXTURE • Key-wayBroaching Fixture • External Surface Broaching Fixture
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- 56. External Surface BroachingFixture
- 57. SHAPING FIXTURE • InternalKeyway Cutting Fixture • Slot or External keyway Cutting Fixture
- 58. Internal Keyway CuttingFixture
- 59. Slot or Externalkeyway Cutting Fixture
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- 61. WELDING FIXTURE • TackWelding Fixture • Butt Welding Fixture • Wing Nut Welding Fixture • Angle Frame Welding Fixture
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- 63. Wing Nut WeldingFixture
- 64. Angle Frame WeldingFixture
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- 67. GRINDING FIXTURE • CylindricalGrinding Fixture 1. Taper mandrel 2. Straight mandrel 3. Combined taper and straight mandrel • Surface Grinding Fixture 1. Magnetic chuck 2. Angle plate fixtuers
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- 71. 2.Combined taper andstraight mandrel
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- 78. MODULAR FIXTURING SYSTEMS •Sub - Plate System • T - Slot System • Dowel Pin System
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- 80. T - SlotSystem
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- 89. ASSEMBLY FIXTURE • Universalfixtures • Special purpose fixtures
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