The most efficient insertion processes are those from vertically above,
in a straight line movement. Most assembly processes take this
form. If this is not the case with a part then it should be
examined to see if the action can be simplified. Simple insertion
processes need low cost workheads. This is because more complex
operations require more degrees of freedom. Each degree of
freedom needs an individual pneumatic, hydraulic, or DC Servo motor
and, therefore, the cost increases accordingly. The cycle time of
the operation also increases.
Summary
Increases in productivity can be realized by re-designing an existing
product for automatic assembly. Component re-design is more
beneficial than assembly system re-design. All of the design
considerations mentioned are related to the three main rules for design
for automatic assembly :
1.Use the least number of parts
2.Obtain low feeding and orientation difficulty levels
3.Use simple insertion operations
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