CAM AND FOLLOWER: DEFINITION, TYPES, WORKING & USES [PDF]

A cam and follower is a mechanical linkage used to convert rotary motion into reciprocating or oscillating motion. It consists of two main components: the cam and the follower.

The primary purpose of a cam and follower system is to control the motion of the follower based on the desired output motion. The shape of the cam determines the follower’s displacement, velocity, and acceleration throughout the motion cycle. This makes cam and follower systems useful in various applications, such as engine valve mechanisms, printing presses, and automated manufacturing systems.

Different types of followers can be used depending on the specific requirements of the system. Some common follower designs include knife-edge followers, roller followers, and flat-faced followers. Each type has its advantages and disadvantages in terms of friction, wear, and stability.

Cam and follower systems can provide precise control over motion, allowing for complex motion profiles and automation. They are widely used in industries where controlled reciprocating or oscillating motion is required.

Cam and Follower Nomenclature

When discussing cam and follower systems, there are specific terms used to describe different elements and characteristics. Here are some common nomenclature terms associated with cam and follower systems:

These nomenclature terms help in describing and analyzing the different aspects of cam and follower systems, facilitating communication and understanding within the field of mechanical engineering and related disciplines.

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what is cam ?

A cam is a mechanical component that is typically in the form of a rotating or sliding disc or cylinder with a specially shaped profile. It is used in various mechanical systems to convert rotary motion into reciprocating or oscillating motion.

The shape of the cam determines the motion of the follower, which is a component that rides along the surface of the cam. As the cam rotates or slides, the follower follows the contour of the cam’s profile, resulting in a specific motion.

types of cam

Certainly! Here are detailed explanations of each type of cam based on their shapes:

Each type of cam offers unique motion characteristics, and the choice of cam shape depends on the desired motion pattern and the requirements of the application.

what is a follower ?

A follower, in the context of cam and follower systems, refers to a mechanical component that rides along the surface of a cam. It is responsible for translating the motion of the cam into a corresponding motion or displacement.

The follower is typically in contact with the cam through a point or a line, depending on the specific design. As the cam rotates or moves, the follower follows the contour or profile of the cam, resulting in a specific motion.

types of follower

Certainly! Here are detailed explanations of each type of follower based on their shape, movement, and line of movement:

According to the movement of the follower:

According to the line of movement of the follower:

The selection of the follower type depends on factors such as the desired motion, the load requirements, the need for precision, and the specific application’s constraints. Each type of follower offers advantages and limitations, and the appropriate choice is determined by the specific requirements of the system.

Cam and Follower Working Principle

The working principle of a cam and follower system involves the conversion of rotary motion from the cam into reciprocating or oscillating motion of the follower. Here’s a general overview of the working principle:

By controlling the shape and contour of the cam profile, the cam and follower system allows for precise control over the follower’s motion. The follower follows the cam’s profile, faithfully replicating its shape and producing the desired displacement, velocity, and acceleration characteristics.

The working principle of a cam and follower system enables the conversion of rotary motion into a wide range of reciprocating or oscillating motions. This makes it a versatile mechanism used in numerous applications, including engine valve mechanisms, printing presses, packaging machinery, robotics, and more.

application of cam and follower

Cam and follower systems find applications in various industries and devices where controlled motion is required. Here are some common applications of cam and follower systems:

These are just a few examples of the wide range of applications where cam and follower systems are utilized. Their ability to provide precise and controlled motion makes them valuable in industries where repetitive or complex motion patterns are required for mechanical operations.

advantages of cam and follower

Cam and follower systems offer several advantages in various applications. Here are some of the key advantages:

These advantages highlight the benefits of cam and follower systems in achieving controlled motion, enhancing efficiency, and enabling reliable performance in various industries and mechanical systems.

disadvantages of cam and follower

While cam and follower systems offer several advantages, they also have some potential disadvantages to consider:

It’s important to consider these potential disadvantages alongside the advantages when evaluating the suitability of cam and follower systems for a particular application. Each system should be carefully designed, maintained, and monitored to address and mitigate these potential limitations.

Reference : http://vlabs.iitkgp.ac.in/mr/exp8/index.html

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