Week 10- Assembly Workbench

1. 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.
There are three types of Quick return mechanism:

Whitworth Quick Return mechanism.

Crank and Slotted Link Mechanism and.

Hydraulic Drive.

Procedure of creating parts:

1. First create all parts of CV joints and QRM with help of drawings provided

2. All parts to be created separately in part work bench

3. After creating all parts individualy we assemble them together in single product in assembly workbench

2. CV JOINT
Constant-velocity joints (also known as homokinetic or CV joints) allow a drive shaft to transmit power through a variable angle, at
constant rotational speed, without an appreciable increase in friction or play.

They are mainly used in front wheel drive vehicles. Modern rear wheel drive cars with independent rear suspension typically use CV joints at the ends of the rear axle halfshafts and
increasingly use them on the drive shaft.