Jig: 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.

1. Jigs
and
Fixtures
Vaibhav Sanjay Patil
TEME - A – 14
170101092035

2. Definitions
 Jig: 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.
Superior Jig
Flexible Fixturing Systems

3. What are Jigs and Fixtures
 Anything used to
hold a work piece in
a desired location
 Locate parts for
precision
 Repeating process on
a series of parts
 Holding parts for
machining, painting,
assembly

4. Two main
types of jigs:
 For machining purposes
 Locates the component,
holds it firmly in place,
and guides the cutting
tool.
 For assembly purposes
 Locates separate
component parts and
holds them rigidly in their
correct positions while
they are being connected.
NorthwesternTools

5. Drill jig components
 Jig body
 Holds the various parts of a jig assembly.
 Cap screws and dowel pins
 Hold fabricated parts together

6. Drill jig components
 Locating devices
 Pins, pads, and recesses used to locate
the workpiece on the jig.

7. Drill jig components
 Clamping devices

8. Drill jig components
 Locking pins
 Inserted to lock or
hold the work piece
securely to the jig
plate while
subsequent holes
are being drilled.

9. Uses of Jig and fixture
 Reduce cost of production.
 Increase the production.
 To assure high accuracy of parts
 Provide for interchangeability
 Enable heavy and complex parts to machine
 Reduced quality control expenses.
 Increased versatility of machine tool.
 Less skilled labour.
 Saving labour.
 Partially automates the machine tools
 Use improve the safety, accidents low

10. Elements of Jig and fixture
 Sufficiently rigid bodies (plate, box or
frame structure
 Locating elements.
 Clamping elements.
 Tool guiding elements.
 Elements for positioning or fastening
the jig or fixture.

11. Type of Fixtures
Milling fixtures
Fixture components
Fixture design
considerations
Sequence in laying
out a fixture
Standard Parts Co.

12. Thank You