Get White Table Tops Work Book & Text Book. Technology Basic Mechanical Functions – Guiding...

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Work Book & Text Book

Technology

Basic Mechanical Functions

– Guiding Functions

– Linking Functions

• Work book and text book NEEDED

Pages

Textbook: pp. 383

Workbook: pp. 207

Definitions

p. 207

Components are…

• The parts or fluids that have a mechanical function

Components

A basic mechanical function…

• Is the role played by a component or a group of components in the function or assembly of a technical object

Screw > bolt

?

Guiding…

• Is the basic mechanical function of any component that controls the motion of one or several moving parts

A guide is…

• A component that has the basic mechanical function of guiding

Axle

?

A link…

• Helps connect two or more parts of a technical object

Linking…

• Is the basic mechanical function provided by any component that links an object’s parts

A linking component…

• Is one that has the basic mechanical function of linking

Veneer + Glue = skate board

Main Types of Guides

p. 207

Rotational guide

• This kind of guide only allows the rotational motion of moving parts

Bike Axle

Translational guide

• This kind of guide only allows the translational motion of moving parts

Bike suspension

Characteristics of links

p. 208

1st Characteristic pair

• Direct

• Indirect

Direct

• A direct link exists when two parts can hold together without requiring a linking component

Cell Phone > Case

Indirect

• An indirect link exists when the parts require a linking component to hold them together

Arm > Frame ?

2nd Characteristic pair

• Rigid

• Flexible

Rigid

• A rigid link exists when the surfaces of the linked parts or the linking component are rigid

Base > monitor

Flexible

• A flexible link exists when the surface of the linked parts or the linking component can be deformed

Pages > spine

3rd Characteristic pair

• Removable • Non-removable

Removable

• A removable link exists when linked parts can be separated without damaging them

Laces > eyelets

Non-removable

• A non-removable link exists when separating the linked parts damages them or the linking component

Sole > upper?

Complete link

• There is a complete link when there is no movement between linked parts

Top > bottom

Partial

• There is a partial link when at least one part is capable of motion with respect to the other

Cap > pen

Principal Types of Links

Fixed link

• There is no movement between linked parts

Screen > case

Rotating link

• The guided part can undergo rotational motion around one axis

Door Hinge

Sliding link

• The guided part can undergo translational motion on one axis

Drawer Slides

Sliding rotating link

• The guided part can undergo rotational and translational motion on the same axis

Seat post > seat tube

Spherical link

• The guided part can undergo rotational motion in many directions

Joystick

Helical link

• The guided part can undergo helical motion

Nut and bolt

Characteristics of Links

Activity # 1• Table = group

• 1 student with white board + pen

• Group I.D. characteristics of link

• Write answers on white board

• Winners = prize

The types of « Links » between Parts

The “link” between the handle and the punch is:

?

permanent or removable,fixed or moveable,direct or indirect,rigid or flexible,

.

The types of « Links » between Parts

The “link” between the handle and the punch is:

?

PERMANENT or removable,fixed or moveable,direct or indirect,rigid or flexible,

The types of « Links » between Parts

The “link” between the handle and the punch is:

?

PERMANENT or removable,FIXED or moveable,direct or indirect,rigid or flexible,

.

The types of « Links » between Parts

The “link” between the handle and the punch is:

?

PERMANENT or removable,FIXED or moveable,DIRECT or indirect,

rigid or flexible,.

The types of « Links » between Parts

The “link” between the handle and the punch is:

?

PERMANENT or removable,FIXED or moveable,DIRECT or indirect,RIGID or flexible,

.

The types of « Links » between Parts

The “link” between the bottom handle and the top handle is:

?

permanent or removable,fixed or moveable,direct or indirect,rigid or flexible,

.

The types of « Links » between Parts

The “link” between the bottom handle and the top handle is:

?

PERMANENT or removable,fixed or moveable,direct or indirect,rigid or flexible,.

The types of « Links » between Parts

The “link” between the bottom handle and the top handle is:

?

PERMANENT or removable,fixed or MOVEABLE,

direct or indirect,rigid or flexible,

.

The types of « Links » between Parts

The “link” between the bottom handle and the top handle is:

?

PERMANENT or removable,fixed or MOVEABLE,direct or INDIRECT,

rigid or flexible,.

The types of « Links » between Parts

The “link” between the bottom handle and the top handle is:

?

PERMANENT or removable,fixed or MOVEABLE,direct or INDIRECT,

RIGID or flexible,.

Activity # 2• Find a partner

• Get a hand-out

• Find each characteristic and type of link

• You can go anywhere in the wood shop

Homework

pp. 207-210