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 cross- hatched 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