How Does A Cam Follower Work?

What is the cam follower used for?

The cam and follower mechanism is widely used for operating the inlet and exhaust valves of internal combustion engines.

They are used in wall clocks and the feed mechanism of automatic lathe machines.

They are also used in paper cutting machines and weaving textile machinery..

What is the difference between a cam and a follower?

Cam followers have a built-in shaft with a grooved end that allows you to screw the part directly into a piece of metal or some other surface. Roller followers, also known as track rollers, require an application to have a shaft or other similar mounting part as part of its design.

What is dwell period in Cam?

Rise is the motion of the follower away from the cam center, dwell is the motion during which the follower is at rest; and return is the motion of the follower toward the cam center. There are many follower motions that can be used for the rises and the returns.

How does a cam mechanism help something move up down?

Gravity keeps the follower in contact with the cam as it rotates, however the rod that is attached to the follower is constrained by the bearing, so it can only move up and down. This has the end result of converting rotation to linear motion.

Why is an offset provided in a radial cam translating follower mechanism?

Why are ‘offsets’ required in cam and followers? Offsets are required in cam and followers to reduce wear and side thrust. As You can see from figure that with offset, stroke length of follower will be less as compared to follower with zero offset. Less stroke length means follower movement will be less.

What is the follower?

1a : one in the service of another : retainer. b : one that follows the opinions or teachings of another. c : one that imitates another.

What are the types of followers?

Ira Chaleff’s Styles of Followership (2003) proposes four distinct follower types: Resource, Individualist, Implementer and Partner. Barbara Kellerman in 2007 described a typology of followership based on the level of engagement; Isolates, Bystanders, Activists, Participants, and Diehards.

What is cam drive?

A cam is a mechanical device used to transmit motion to a follower by direct contact. … A familiar example is the camshaft of an automobile engine, where the cams drive the push rods (the followers) to open and close the valves in synchronization with the motion of the pistons.

What is a cylindrical cam?

A cylindrical cam is a 3D cam which drives its follower in a groove cut on the periphery of a cylinder. The follower, which is either cylindrical or conical, may translate or oscillate. The cam rotates about its longitudinal axis, and transmits a translation or oscillation displacement to the follower at the same time.

How many types of cam followers are there?

1. (A) According to type of shape (1) Radial or Disc cam (2) Cylinrical cam (3) Translation or Wedge cam (4) Conjugate cam (5) Globoidal cam (6) Spherical cam Types of cams…

What are the three types of CAM?

Cams can be produced in any shape, but the most common shapes are:Circular. Circular cams use an off-centre pivot to cause the follower to move up and down. … Pear. Pear cams are called this as they have the shape of a pear. … Snail or drop. … Heart-shaped or constant velocity.

What does CAM stand for?

Computer-Aided ManufacturingCAMAcronymDefinitionCAMComputer-Aided ManufacturingCAMCamshaftCAM7CAMCamcorder (video source)179 more rows

What other things use a cam mechanism?

Cams are commonly used in engines to control valves (in which the valve is the follower), sewing machines, children’s toys and many other mechanical applications. The shapes of individual Cams are designed to produce specific types of motion.

What are types of CAM?

Types of Cam:Disk or Plate cam.Cylindrical cam.Translating cam.Wedge cam.Spiral cam.Heart-shaped cam.

What is an example of a cam follower?

A cam follower is a component that is intrinsically tied to a cam. Cams exist in many applications–dishwashers, sprinklers, etc. –but the most well-known example is that of a camshaft in a car. The goal of a cam is to convert rotary motion to linear motion.

What is side thrust in cam and follower?

Side thrust exists between the follower and the guide. Rate of wear is reduced. Side thrust exists between the follower and the guide. It is used where more space is available such as in stationary gas and oil engines and aircraft engines.

What is a cam displacement diagram?

A Displacement Diagram is essentially a graph which plots the movement of a cam follower against time. Since the cam’s movement is usually constant then equal time intervals can be represented by equal distances along the horizontal axis and the resulting follower movement (or ‘displacement’) along the vertical axis.