Week 11- Assembly Workbench

Assembly Workbench

QUICK RETURN MECHANISM

A quick return mechanism is an apparatus to produce a reciprocating motion in which the time taken for travel in return stroke is less than in the forward stroke. It is driven by a circular motion source (typically a motor of some sort) and uses a system of links with three turning pairs and a sliding pair. A quick-return mechanism is a subclass of a slider-crank linkage, with an offset crank.

Quick return is a common feature of tools in which the action is performed in only one direction of stroke, such as shapers and powered saws because it allows less time to be spent on returning the tool to its initial position.

The process of creating each part is shown in the above quick return mechanism. I’ll use the Boolean method feature to create all the parts.

• Quick Return Mechanism Frame

• Holding of Frame

• Slider

• Crank

• Crank Holder

• Final Assembly