Transcript pin joint a joint in a truss or another frame in which the

ALIGNING PARTS IN AN
ASSEMBLY
MAK112E
April 20, 2009
Aylin Yenilmez Gürkök
ALIGNING PARTS IN AN
ASSEMBLY
•Aligning Parts in an Assembly (pdf file)
•Avies – available on my website
•Exploded view
•Mate diagnosis
•Mates training (Jigsaw, planetary gearing , piston mechanisms)
•Sub-assemblies
•Animator
•Examples
Aligning Parts in an Assembly
• Assembly drawings show how the components
of a design fit together dimensions and other
details
• Several assembly drawings’ styles are used
– Exploded view
– Sectioned assembly
– Cut-away view (a drawing that shows the construction and internal detail
of an object by showing the outer parts)
• Numbers or letters are assigned to individual
parts of the assembly and are related to a parts
list which can be called Bill of Material
ASSEMBLY - Bill of Materials (Part
List)
• It includes;
– The part names,
– Identification number,
– Material,
– Number used in the assembly,
– Other information like catalog number for
standard parts
ASSEMBLY - In an Assembly
Drawing
• You can see all of the components of a design either
assembled or in an exploded view
• Most dimensions are omitted
• Individual parts are not dimensioned
• Hidden lines are rarely shown in assembly drawings
(they can be used if they are really necessary)
• Leader lines attached to a ballooned letter or detail
number which refers to the parts of the assembly
• These leader liner cannot cross and should be almost
parallel.
• Parts list can be on the assembly drawing or on a
separate sheet
• It should also contain machining and assembly
information
ASSEMBLY - If Assembly
Drawings Include Assembly
Sections
• Views of parts may be orthographic or pictorial
section views
• Adjacent parts in the drawings are crosshatched at different angles to make each part
clear
• Detailed view can be used to show the interior
structure or how the parts assembled
• Fasteners, washers, springs, bearings, and
gears are not cross-hatched
ASSEMBLY DRAWING
• When something is designed, an
assembly drawing is prepared to show the
general arrangement
• All parts are shown assembled in their
operating positions
• A part list is shown
EXPLODED ASSEMBLIES
• Components are placed in their functional
orientation and location in an assembly
• Assembly drawing is used to display the
location of assembled components
• The assembly can be exploded to
separate components to make it more
understandable
BILL OF MATERIALS (PART LIST)
• Each single part in the drawing is usually labeled
by a reference number
• Balloons contain relevant reference number
• These numbers are listed in a part list on the
drawing or on a separate sheet
– The part number
– The name and description of the part
– The material from which the part is to be
made
– The quantity required