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[https://en.wikipedia.org/wiki/Cam#Cylindrical_cam '''Cylindrical Cams'''] are used mainly to convert '''[[Types of Motion|rotational motion]]''' to '''[[Types of Motion|linear motion]]''' parallel to the rotational axis of the cylinder.
 
  
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=====Description=====
  
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[https://en.wikipedia.org/wiki/Cam#Cylindrical_cam '''Cylindrical Cams'''] ''(aka '''Barrel Cams''')'' are used mainly to convert '''[[Types of Motion|rotational motion]]''' to '''[[Types of Motion|linear motion]]''' parallel to the rotational axis of the cylinder.
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A '''[[Swashplate]]''' may be regarded as a simple form of cylindrical cam.
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=====Features and Applications=====
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Properly machined cylindrical cams, as used in engine gearboxes for example, may have slots '''[[Milling Machine|milled]]''' into the side of the cylinder such that the follower is positively driven each way and does not rely on a spring for its return.
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----
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<span style="color: green">'''Note:'''
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They can be modelled by constructing a '''[[Displacement Diagram]]''' to use as a '''[[Template]]''' then cutting it out of paper and wrapping it around a tube to show the profile to be cut.
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----
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=====Animation=====
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* Examples from '''[[2100 Animated Mechanical Mechanisms|Nguyen Duc Thang's]]''' YouTube Channel '''[[2100 Animated Mechanical Mechanisms]]'''
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{|
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|-
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| [https://youtu.be/qYRU5eu1HHI '''Barrel Cam'''] with milled grooves is used in sewing machines to guide thread.
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| {{#ev:youtube|qYRU5eu1HHI|200x200|right||frame|loop=1&autoplay=0&playlist=qYRU5eu1HHI}}
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| [https://youtu.be/THHlXrYS_-4 '''Facial Cam''']  - double ended to increase follower stroke without changing the pressure angle. Gravity maintains contact between rollers and cam.
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| {{#ev:youtube|THHlXrYS_-4|200x200|right||frame|loop=1&autoplay=0&playlist=THHlXrYS_-4}}
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|}
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{{Cams & Cranks Buyers Guide}}
  
 
[[Category:Secondary]]
 
[[Category:Secondary]]
[[Category:Mechanisms]]
 
 
[[Category:Cams]]
 
[[Category:Cams]]

Latest revision as of 14:44, 28 August 2016

CylindricalCam.png


Description

Cylindrical Cams (aka Barrel Cams) are used mainly to convert rotational motion to linear motion parallel to the rotational axis of the cylinder.


A Swashplate may be regarded as a simple form of cylindrical cam.


Features and Applications

Properly machined cylindrical cams, as used in engine gearboxes for example, may have slots milled into the side of the cylinder such that the follower is positively driven each way and does not rely on a spring for its return.


Note: They can be modelled by constructing a Displacement Diagram to use as a Template then cutting it out of paper and wrapping it around a tube to show the profile to be cut.


Animation
Barrel Cam with milled grooves is used in sewing machines to guide thread.
Facial Cam - double ended to increase follower stroke without changing the pressure angle. Gravity maintains contact between rollers and cam.
DT Online Buyers' Guide
  • The use of Cams can most easily be explored using Contruction Kits such as those listed below.

Click top left to enlarge

Engino Engino Fischertechnik 536622 - Mechanic & Static 2 Engino Mechanisms Set Engino Gears Set
Engino "STEM Mechanics" Cams and Cranks Set Engino "STEM Mechanics" Levers and Linkages Set Fischertechnik 536622 - Mechanic & Static 2 Engino Mechanisms Set Engino Gears Set