dib.mecánico 1exam

7/26/2019 Dib.mecnico 1exam

1/10

Instituto Universitario PolitcnicoSantiago Mario

Evaluacin en Lnea de Dibujo Mecnico .Primer Corte (20 Ptos, 0 !".

En esta evaluacin ampliaras tus conocimientos sobre la aplicacin de las Normas

en el dibujo Mecnico, acotado, tolerancia y ajustes. Para ello se recomienda realizar la

lectura del material complementario sobre Normas de Acotacin, Rotulacin y Uso de

instrumentos. e debe elaborar un in!orme con dos "#$ inte%rantes.

PAR&E '. Normas para el (ibujo, Ajustes y &olerancia. ")alor * Ptos$

+ (e!ina los si%uientes conceptos Normas para el (ibujo, ajuste y tolerancia,

jue%os aprietes.

Normas para el Dibujo.

ORGANISMOS NACIONALES O INTERNACIONALES QUE HAN

ESTABLECIDO NORMAS PARA EL DIBUJO TCNICO.

NORMAS NORVEN: (NORMAS VENEZOLANAS) En 196 !"# $%%'"!#%$%n&*+ % %'*,+%&% +* MARCA NORVEN !*#* +" !#"$-&'" n$-'#*+%

-% &-/!+%n &"n +* %!%&0&*&"n% -% +% &"##%!"n$%n.

NORMAS COVENIN: En n-%'#" Mn'%#" $% "/%n'" 0-n&"n* $%$% 1923 +*

C"/4n V%n%5"+*n* $% N"#/* In$-'#*+% -% %'-$* +* n"#/* +*

"/%'% * &"n-+'* !7,+&* 8 +* !-,+&* %n 0"#/* $%0n'*.

NORMAS DIN: (DEUCHET INDUSTRIES NORME) N"#/* n'%#n*&"n*+%

*+%/*n* &"n %$% %n A+%/*n* * !*#'# $% 191 "n +* /; -*$* %n

n-%'#" !**$*.

NORMAS ISO: (INTERNATIONAL STANDARD ORGANIZATION)

O#>*n5*&4n In'%#n*&"n*+ !*#* +* E'*n$*#5*&4n &"n %$% %n Gn%,#* ?


2/10

S-5*. E'-$* 8 #%$*&'* n"#/* %@'%n'% !*#* ,%n%0&" $% +* T%&n"+">#%" *&% /; $%

1 *" ((1366) *'* %+ !#%%n'% n" % * $0-n$$" - -" %n '* $% -% n"% ",+>*'"#". L* /*8"# !*#'% $% +* n*&"n% -*n %+ '%/* /'#&". P*#*

&"/!%'# %n %+ /%#&*$" /-n$*+ /-&* &"/!*#*n !*#'% $% +* n$-'#*

%'*$"-n$%n% +* &"n%#4n '"'*+ n" ++%>*#; $% n/%$*'" !-% *$"!'*# +*

n"#/* ISO % -n !#"&%" +%n'". L* n"#/* ANSI >-%n %n$" '#*$-&$* *+

'%/* /'#&". N" % '#*'* $% %&">%# -n* &"* - "'#* /-&* &"/!** * '"$" +" /*'%#*+% 8 !#"$-&'" -% &-/!+*n &"n +*

%!%&0&*&"n% $% +* n"#/* &"##%!"n$%n'%. S% %'*,+%&%n *n&"n%

n" &-/!+%n +* &"n$&"n% %'!-+*$* !"# +* n"#/*. L* n"#/* >%n%#*+%

$% $,-=" '&n&" !*#* -" %n V%n%5-%+* % *n %+*,"#*$" ",%$%&%n$" * +*

%@!%#%n&* 8* %@'%n'% %n %'% &*/!" %n "'#" !**n5*&4n In'%#n*&"n*+ $%

N"#/*+5*&4n.


3/10

A=-'% 8 '"+%#*n&*:

AJUSTES

S% $%n"/n* *=-'% * +* #%+*&4n /%&;n&* %@'%n'% %n'#% $" !%5* -%!%#'%n%&%n * -n* /;-n* " %-!" n$-'#*+ &-*n$" -n* $% %++* %n&*=* " %

*&"!+* %n +* "'#*.

TIPOS DE AJUSTES

"#5*$" /-8 $-#"

"#5*$" $-#" "#5*$" /%$"

"#5*$" +>%#"

D%+5*n'%

G#*'"#"

H"+>*$" /%$"

M-8 "+>*$"

"#5*$" /-8 $-#": E+ *&"!+*/%n'" $% +* !%5* % !#"$-&% !"# $+*'*&4n "

&"n'#*&&4n 8 +* !%5* n" n%&%'*n nn>7n %>-#" &"n'#* +* #"'*&4n $% -n*

&"n #%!%&'" * +* "'#*.

"#5*$" $-#": L* !%5* "n /"n'*$* " $%/"n'*$* * !#%4n !%#"

n%&%'*n -n %>-#" &"n'#* >#" &*%'* !"# %=%/!+" -% n" !%#/'* %+ >#" $%

-n* &"n #%!%&'" * +* "'#*.

"#5*$" /%$": L* !%5* % /"n'*n 8 $%/"n'*n &"n >#*n %0-%#5" 8

n%&%'*n -n %>-#" &"n'#* >#" 8 $%+5*/%n'".

"#5*$" +>%#": L* !%5* % /"n'*n 8 $%/"n'*n n >#*n %0-%#5" &"n

/*5" $% /*$%#* !"# %=%/!+" 8 n%&%'*n %>-#" &"n'#* >#" 8 $%+5*/%n'". D%+5*n'%: T%n%n -% '%n%# -n* ,-%n* +-,#&*&4n 8 - $%+5*/%n'" " >#"

'%n% -% %# &"n !#%4n " 0-%#5* /*n-*+.

G#*'"#": N%&%'*n %'*# ,%n +-,#&*$* 8 !-%$%n >#*# &"n &%#'* "+>-#*.

H"+>*$" /%$": S"n !%5* /4+% -% >#*n +,#%/%n'% 8 !-%$%n %'*# " n"

+-,#&*$*.


4/10

M-8 "+>*$": S"n !%5* /4+% &"n /-&* '"+%#*n&* -% '%n%n /-&"

=-%>" 8 >#*n +,#%/%n'%.

Tolerancias

S -n* /%$$* $% 0*,#&*&4n %n %#% %'; *0%&'*n$" * +* !%5* %'*/"

*,+*n$" $% tolerancias dimensionales. E'" -%#% $% -% -'%$ %!%#*,*

-% -n $;/%'#" 0-%#* $% F2 &%n'" 8 *n&" !*#* '- %n&*=% +* $/%n4n $%

'- !%#n* %n *+ $/%n4n $%+ 5*!*'".

Juego y Apriete

En -n %n*/,+% %n -% +* !%5* &"n'n%n'% (*>-=%#") %* /*8"# -% +* !%5*

&"n'%n$* (;#,"+) % $&% -% %n'#% */,* -%$* -n =-%>". P"# $%0n&4n %+

=-%>" % +* $0%#%n&* %n'#% +* $/%n4n $%+ *>-=%#" 8 +* $/%n4n $%+ ;#,"+.

D*$" -% +* $/%n"n% $%+ *>-=%#" 8 $%+ ;#,"+ *#-#* 3: R%!#%%n'* %+ =-%>" /;@/" 8 /


5/10

Apriete mx = dimensin mx del rbol dimensin min. del agujero

Amx= dmx Dmin.

Apriete min.: dimensin min. del rbol dimensin mx del agujero

Amin= dmin Dmx.

PARTE II. R"&* $% T"#n++" 8 C+*0&*&4n. (V*+"# 3 P'")

*) D%0n* +" >-%n'% &"n&%!'":

R"&* $% T"#n++".

Un* R"&* % -n* *#'* %+&"$*+ $% -n '"#n++" (#"&* %@'%#"#) " $% -n*'-%#&* (#"&* n'%#"#) $% %&&4n '#*n>-+*# &-*$#*$* " #"/* 0"#/*$* ",#% -n

n7&+%" &+-+*# %-+;'%#* &"n *#'* n0%#"#% #%$"n$%*$* 8 *#'* -!%#"#

&*0+*n*$* /%n'#* -% %+ !%#0+ $% #"&* n>+%* 'K"#' % $% %&&4n

'#*n>-+*# 4&%+% &"n '"$* - *#'* #%$"n$%*$*. L* #"&* $% !*" $%>* '%n% -n !%#0+ '#*n>-+*# &"n -n ;n>-+" $% 22 %n %+ #'&% 8 &"#'%

#%$"n$%*$".

En %+ '%/* n"#'%*/%#&*n" S%++%# * &*$* $;/%'#" &"##%!"n$% -n

$%'%#/n*$" n7/%#" $% 0+%'% !"# !-+>*$*. L* #"&* $% !%#0+ '#*!%&*+ %';n

%!%&*+/%n'% n$&*$* !*#* +* '#*n/4n $% %0-%#5" %n -n "+" %n'$"

/%n'#* -% +* #"&* $% 0+%'% #%$"n$" " $% &"#$4n % -'+5* %n +" &*" %n +"

-% * $% #%&,# /!*&'" !%#'%n'%. L* #"&* $% !%#0+ &-*$#*$" %

%/!+%*n &-*n$" %* &"n%n%n'% %'*# +* *&&4n #*$*+ $% +* #"&*.

Un4n /%$*n'% R"&*.

T!" $% R"&* ('K"#' M'#&* A&/% C-*$#*$* R%$"n$*

C4n&* n* E@'#*0n* G#-%* In'%#n* E@'%#n* D%#%&* %

I5-%#$*)


6/10

N7/%#" $% En'#*$*.

T!" $% T"#n++" (E!%&0&*&"n% /,"+">-#$*$ (-n&4n '!" 8 *!+&*&"n%).

En +" $,-=" $% C"n=-n'" $"n$% % #%!#%%n'*n $%#$*$ $% !%5*

%n*/,+*$* &"n0"#/*n$" /%&*n/" " %+%/%n'" $% /;-n* %

%n&-%n'#*n +" $!"'" $% %>-#$*$ -% !%#/'%n +* %'*,+$*$ 8 ,-%n

0-n&"n*/%n'" $% +* !%5*. E'" $!"'" %';n n"#/*+5*$" 8 $%,%n

#%!#%%n'*#% *+ >-*+ -% #%>'#*#% %>7n +* n"#/* %'*,+%&$* !*#* &*$* -n"

$% %++".E !"# %++" -% "n$%0n$" &"/" %+%/%n'" /%&;n&" &-8" ",=%'"

% /!%$# -% % *0+"=%n " $%*=-'%n +" '"#n++" 8 !%5* $% -n /%&*n/" "/;-n* * &*-* $% +* ,#*&"n% "&-##$* $-#*n'% - 0-n&"n*/%n'".

Clasificacin de los dispositios de seguridad

1. Dispositio !e seguri!a! por presi"n

S% %/!+%*n *#" '%/* -n" $% %++" % %+ $% +* *#*n$%+* $% /-%++% DIN

1 (G#"K%#)

Designaci"n !e la aran!elas !e muelle

A#*n$%+* $% /-%++% B 1 DIN 1 ("#/* B $% 1 // $% $;/%'#" n'%#"#)

#. Dispositios !e seguri!a! por su $orma

#.1 Aran!elas !e seguri!a! con solapa

C*#*&'%#5*$* !"# !"%%# -n" " $" ,"#$% *+%n'% -% #%n $% '#*,* " '"!%

!*#* %'*# %+ >#" $% +* //*.

Designaci"n !e las aran!elas !e solapa

A#*n$%+* $% %>-#$*$ 1 DIN 9 (D;/%'#" $%+ *>-=%#" 1 //)

#.# Aran!elas !enta!as DIN %&'&


7/10

Designaci"n !e aran!elas !enta!as

A#*n$%+* $%n'*$* J F DIN 69!# (0"#/* J $;/%'#" $% *>-=%#" F// $%

*&%#" !*#* /-%++% -!%#0&% #%%'$* &"n 0"0*'" (!#)

#.( Anillos !e seguri!a! para ejes DIN )&1 y UNE #%*&)

Designaci"n !e un anillo !e seguri!a! para ejes

An++" $% %>-#$*$ @ 12 DIN F1 " UNE 6F ($;/%'#" $%+ %=% //

>#""# $% *n++" 12 //)

#.) Anillos !e seguri!a! para agujeros DIN )

Designaci"n !e un anillo !e seguri!a! para agujeros

An++" $% %>-#$*$ 2 @ 12 DIN F ($;/%'#" $%+ *>-=%#" 2 // >#""# $%

*n++" 12 //)

#.+ Aran!ela el,stica !e retenci"n para ejes UNE 1&*&-DIN %&''

Designaci"n !e aran!ela !e retenci"n para eje

A#*n$%+* $% #%'%n&4n 12 UNE 13 ($;/%'#" $%+ %=% 12 //)

#.% Anillo !e retenci"n con sujeci"n por prisionero DIN &*+

Designaci"n !e un anillo !e retenci"n con sujeci"n por prisionero !e /(*0 $orma

A:

An++" $% #%'%n&4n A DIN 2

PASADOES

P"# %+ -" * -% % $%'n*n % $$%n %n !**$"#% &+n*&4n $% -n !**$"# &+


8/10

P**$"# 3 /6 @ DIN

O '*/,n:

P**$"# &+'-$ +

2 //:

P**$"# &4n&" F @ 2 DIN 1

O '*/,n:

P**$"# &4n&" F @ 2 UNE 16

#.1* Pasa!ores estria!os.

S% &"n'#-8%n $% *#* 0"#*/* %>7n DIN 1F1 1F 1F 1FF 8 1F2.

D%>n*&4n $% -n !**$"# &+


9/10

S"n 4#>*n" $%'n*$" * *&%# "+$*#* (-n#) %n #"'*&4n $" !%5*

%n*/,+*$* &"n -n* -n4n $%/"n'*,+%.

34aeta. E -n !#/* $% *&%#" $% %&&4n #%&'*n>-+*# 8 +>%#*/%n'% &4n&" %n

%n'$" +"n>'-$n*+. V* *+"=*$* * !#%4n $%n'#" $% -n &*%'%#" '*/,n $%%&&4n #%&'*n>-+*# 8 !#*&'&*$" !*#'% %n %+ %=% 8 !*#'% %n +* !%5* -% % * $%

"+$*#5*# " -n# &"n %+ %=%.

L* &*%'* '#*,*=*n !"# - $" &*#*.

D%>n*&4n $% -n* &*%'* 0"#/* A $% *n&-#* , 2// *+'-#* // 8

+"n>'-$ + 16 //:

C*%'* A 2 @ @ 16 DIN 6336

D%>n*&4n $% -n* &*%'* 0"#/* B $% *n&-#* , // *+'-#* 13 // 8+"n>'-$ + 1:

C*%'* B @ 13 @ 1 DIN 6336

D%>n*&4n $% -n* &*%'* &"n &*,%5* $% *n&-#* , 16 // *+'-#* 1

// 8 +"n>'-$ + 16 //:

C*%'* &"n &*,%5* 16 @ 1 @ 16 DIN 633

O '*/,n:

C*%'* $% &-* 16 @ 1 +"n>'-$ 16 &"n '*+4n UNE 11

!eng"etas. S"n -n* !%5* !#/;'&* %n 0"#/* $% %>/%n'" &+%'* *&'7* "+*/%n'% !"# - 0+*n&" (+*'%#*+%).

D%>n*&4n $% -n* +%n>%'* $% *=-'% 0"#/* A $% *n&-#* , 1F // *+'-#*

9 8 +"n>'-$ + 2 //:

L%n>%'* $% *=-'% A 1F @ 9 @ 2 DIN 6332

O '*/,n:


10/10

C*%'* !+*n* 1F @ 9 UNE 1 +"n>'-$ 2

!eng"etas redondas D#$ %&&& ' ($) *+*,*.

D%>n*&4n $% -n* +%n>%'* #%$"n$* $% *n&-#* , 6 // 8 *+'-#* 9 //:

L%n>%'* #%$"n$* 6 @ 9 DIN 6333

O '*/,n:

C*%'* $% $&" 6 @ 9 UNE 111

S/,"+">-#$*$.

N"'*: P*#* +* %+*,"#*&4n $% +* P*#'% I 8 II $% n0"#/% &"n$%#% +* N"#/*'*M%'"$"+4>&* %'*,+%&$* %n %+ M*n-*+ D% T#*,*=" %!%&*+ $% G#*$" $%+

IUPSM.

PARTE III. P#%%n'*# +* '* +*'%#*+% 0#"n'*+ 8 -!%#"# $%+ '"#n++" %@*>"n*+

/"'#*$" %n +* 0>-#* N1. C"n$%#% +* $/%n"n% $%+ T"#n++" %n

&%n'

dib.mecánico 1exam

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