Jigs and Fixtures for Productivity and Quality

Jig

Fixture

Principles of Design

Location

Clamping

Jig and Fixture Types

Template Jig

Plate Jig

Channel Jig

Box Jig

Diameter Jig

Ring Jig

Leaf Jig





Jig

Fixture

Principles of Jig and Fixture Design

1. They have to as robust as possible to withstand forces in cutting in the case of turning, milling or boring.

2. In the case of drilling jigs, jigs have to be as light as possible.

3. They have to be as simple in construction consistent with core performance.

4. The location task should be as quick as possible.

5. Clamping also has to be as quick as possible.

6. The design must provision for easy disposal of swarf and should not allow swarf to accumulate on locating points

7. Poka yoke or fool proofing features have to be incorporated (point included in the book published in 1983.)

Location

Locating Arrangements

Flat locator
Cylindrical locator
Jack Pin locator
Conical locator
Drill bush locator
Fixed or sliding V-locator

Clamping

Types of Clamps

Flat Clamp
Screw Clamp
Pivoted
Latch Clamp
Cam Clamp
Swing Plate Clamp
Wedge Clamp

Jig and Fixture Types

Template Jig

Plate Jig

Channel Jig

Box Jig

Diameter Jig

Ring Jig

Leaf Jig


Jigs and Fixtures For Machine Shops
nptelhrd
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Design and Applications of Jigs and Fixtures
nptelhrd
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In this video we take a look at a couple of simple shop built jigs and fixtures used to perform a difficult operation.
oxtoolco
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