Transcript Jigs and Fixtures

Mass Production
Manufacturing
Mr. O’Rourke
What is Mass Production?
The production of large amounts of standardized
products, including and especially on assembly
lines.
Assembly line- A process in which parts are
assembled in an optimal order to create a
finished product. Developed by the Ford Motor
Company who implemented it into the creation
of the Model-T.
Jigs
Devices that hold and move a work-piece
in relation to a tool. Often they are
designed as carriages that slide. Jigs act
as a guide for the tools that cut and shape
the wood, and they are ideal for repetitive
tasks.
Fixtures
Stationary devices that hold the wood in a
set position in relation to a tool. Some of
the more typical examples of fixtures are
fences -- such as a ripping fence on the
table saw.
Use on Machines
Works with:
Table Saw
Chop Saw
Drill Press
Sanders
Various Hand Tools
A jig SLIDES, and a fixture GUIDES.
Benefits
Keeps Parts Consistent
Eliminates User Variation
Faster
Safer
Easier
“Push” Manufacturing
Producer pushes product toward
consumer
Product is pushed from one step to the
next:
Manufacturing step 1,2,3etcstorageMarketing
Very wasteful: inventory=Wasted $$
“Pull” Manufacturing
AKA Lean Manufacturing
Starts with demand
Nothing goes on to next step until it is
required
Eliminates waste and inventory