Week 7 Challenge - Assembly Workbench

OBJECTIVE: To create quick return mechanism and CV joint parts in part work bench or generative work bench and assemble them following all the guidelines.

 

INTRODUCTION:

<!-- [if !supportLists]-->1)     <!--[endif]-->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 3 types of QRM

<!-- [if !supportLists]-->·       <!--[endif]-->Hydraulic drive

<!-- [if !supportLists]-->·       <!--[endif]-->Crank and slotted link mechanism

<!-- [if !supportLists]-->·       <!--[endif]-->Whitworth mechanism

A quick return mechanism is a mechanism which produces a reciprocal effect so that the system takes less time in the return stroke while comparing with forward stroke. In the quick-return mechanism, a circular movement like the crank and lever mechanism is converted into reciprocal movement but the return time is different from the forward moment. In several applications, this process is used. Some of them are shaper, slotter, screw-press, mechanical drive, etc. The time required for cutting is reduced with the assistance of a quick return mechanism.

 

<!-- [if !supportLists]-->2)     <!--[endif]-->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 half shafts and increasingly use them on the drive shaft.

All front-wheel drive cars have Constant Velocity joints or CV joints on both ends of the drive shafts (half shafts). Inner CV joints connect the drive shafts to the transmission, while the outer CV joints connect the drive shafts to the wheels. Many rear-wheel drive and four-wheel drive cars as well as trucks also have CV joints.

Procedure

<!-- [if !supportLists]-->·       <!--[endif]-->Create all the parts separately in the part work bench with ISO constrained sketches.

<!-- [if !supportLists]-->·       <!--[endif]-->Pad that sketch using pad feature in part work bench and filet the edges.

<!-- [if !supportLists]-->·       <!--[endif]-->Use Boolean operations and add to obtain the required output.

<!-- [if !supportLists]-->·       <!--[endif]-->Go to the assembly work bench and open the all the parts that you created using “open existing component” feature.

<!-- [if !supportLists]-->·       <!--[endif]-->Assemble the parts using tools like coincide, contact and manipulation to obtain the desired assembly.

<!-- [if !supportLists]-->·       <!--[endif]-->Draft the assembly using drafting workbench with title block, bubble drawing and bill of material.