Tiêu chuẩn iso 02568 1988 scan

INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXQJYHAPOJJHAR OPTAHl43Al#lR l l0 CTAHflAPTM3A~MM Hand and machine operated circular[.]

INTERNATIONAL STANDARD

MEXQJY HAPOJ H R OP A l4 Al#lR l-l0 CTA Hf lA PTM3A~M

Fi&re ro de de fietage, r) main et B ma hine, et Porte-fikre rS main

Se on d edi ti o n

19 8-12-01

Re fe re n ce nu mbe r

Foreword

IS0 (h Inter natio al Or ganizatio for Stan ar dizatio ) is a worldwid fe er atio of

natio al stan ar ds b die (IS0 memb r b die ) Th wor k of pr epar i g Inter natio al

Stan ar ds is n r maly carie o t thr ou h IS0 te h ical c m ite s E c memb r

b od inter este in a s bje t for whic a te h ical c m ite has b e e tabls e has

t he r i ht to b r epr es nte o that c m ite Inter natio al or ganizatio s, g v r n-

me tal an n n-g v er nme tal in lais n with ISO, als t ak pa in th wor k

Dr af Inter natio al Stan ar ds ad pte b y th te h ical c m ite s ar e cir culate to

t he memb r b die for ap r ov al b for e th ir ac e tan e as Inter natio a! Stan ar ds b y

t he IS0 Co n i Th y ar e ap r ov ed in acor dan e with IS0 pro e ur es r eq irin at

least 7 % ap r ov al b y th memb r b die v ot in

Inter natio al Stan ar d IS0 2 9 was pr epar ed b y Te h ical Com ite ISO/TC 2 ,

Smal tols

This s c n e itio can els an re lac s th first e itio (IS0 2 6 : 19 31, of whic it

c n titute a min r r evisio It in orp rate ame dme ts 1 an 2, p bls e in 19 7

a nd 19 3 r es e tiv ly, an a n w clau e 5 “Mar kin ” has b e ad e

Us rs s o ld n te that al Inter natio al Stan ar ds u d r go r evisio fom time to time

a nd t hat any r efere c mad h r ein to a ny oth r Inter natio al Stan ar d imple its

late t e itio , u le s oth r wis state

@ Internatio al Organizatio for Stan ardizatio , 19 8 0

Pr i te in Sw itz r lan

Hand- and machine-operated circular screw ing dies

dime sio s, e tabls e as a fu ctio of th thr ead diameter an pitc , ar e t he folowin :

-

o tsid diameter ;

-

thick ne s;

-

c tin p r tio le gth;

- g n r al dime sio s of atac me t

It als giv s th inter chan eabity dime sio s of han -o er ate die sto ks

This Inter natio al Stan ar d is ap lcable to s rewin die inte d d for th man factur e of th folowin thread :

- IS0 metic thread :

- c ars thr ead, fom Ml t o M6S;

- fin thr ead, fom Ml to MS6

- IS0 in h thr ead :

-

“Unifie c ar se” s rie (U C), fom No 1 - 6 to 2 314 - 4;

-

“Unifie fin ” s rie (U F), fom No 0 - SO to 1 12 - 12

Th dime sio al c aracteristic of circ lar s r ewin die , as a fu ctio of thr ead diameters an pitc e , are giv en in a nn x A

Th g n r al dime sio s of s rewin die for thr ead whic ar e n t d alt with in this Inter natio al Stan ar d, an th r efor e ar e n t

r ec m e d d, ar e giv en for g idan e o ly in a nn x B Ann x B is ap lcable to srewin die for in h thread of th folowin t yp s:

8.2 - “Britis Stan ar d Fin ” (BS I

B.3 - “Britis As o iatio ” (B )

Al s rewin die are av aiable in tw o clase , namely

-

2 IS0 metric thr ea s

D = 16 n 2 m

A-A

D>2 mm

Fig re 1 - Met ic s rewin die

T ble 1

Dimensio s in mi metre

I

De ig atio

In,“, I PitchI D I E

Ml2

Ml4

Ml6

Ml6

M2

M2

M2

M2

-12 1,75

-

14

3 14

16

2

1.2

2

2 -6 2

1.5

13

8

I

75 3

I

14,5 f

2

-

M4

2

-

-* F r an Ml6 die, this dimensio is an exc ptio to the general table

(able 6) given in an ex A

-

D

-

16

-

2

-

2

-

a

-

0

-

3,5

-

1

-

b

De ig atio

d

Pitc

n m

I

5

I

3,5

- I 3.6

I

1

3

NOT ES

1 T e shape of the V-gro ve is lef to the dis retio of the man fa turer Screw in die are generaly su pled with two chamfers at the thre d

entranc , a cordin to the material to be thre ded an at the dis retio of the man fa turer

2 T oleranc s :

- for pre isio s rewin die :

- o D: f10

- o E: js12

- for n n-pre isio s rewin die :

-

o D an E: the toleranc s are lef to the dis retio of the man fa turer

2.2 Fin thr ea

T ble 2

Dimensio s in mi metre

-

8

2

-

D

-

2

2

-

3

-

3

-

15

-

i5

-

5

-

14

-

16

-

18

-

0,s

c6

-

0,8

-

1

-

-

I5

-

I8

-

b

-

-

-

-

6

B

-

a

De ig atio

M3 x 1.5

I5

I5

M4

4

I 5

-

4

-

7

De ig atio

I

d

n m

Pitcl

d

Pitc D

n m

0

0.2

0,3

0,5

0,7

M3.5 x 0.3 3.5

M4.5 x 0.5 4,5

M5,5 x 0.5 1 5.5

3

2

3

2

3

2

3

2

3

1

1,2

1,2

1,2

2

I 5

2

1.5

2

1,5

2

I 5

2

1,5

2

10

For th s ap of th V-gr oov e an t he toler an e , s e n te 1

an 2 in 2.1

I

I

I

3 IS0 in h thr ea s

Screwin die with:

D = 16an ZO m

A-A

D> 5mm

Fig re2 - Screwin dies UNC a d U F

“Unifie c arse” series WNCI

3.1

Ta le3

Dimensio s in mi metre

De ig atio

I

d

I

Pitc

n m

Z

D

Dl

E

4

3

I

I

1,=

I 0,3 7

I

I 2,18

I

I

I 2,515

I 0,5 9

2

I

I 6,3

I

1,27

I

6

Or 8

1

I

I

9,5 5

3

3

18

I

I

14,2 8

I 2,1 7

I

I

15,875

I 2.3 9

I

314 - 10

I

19.0

I

I

2 ,2 5

4

5

1,5

1,8

8

2

75

9

2

10

2

10

3.2 “Unifie fin ” series WNFI

T ble 4

Dimensio s in mi metre

De ig atio

n m

Z

2.5

3

NOT ES

1 T e shape of the V-gro ve is lef to the dis retio of the man fa turer Screw in die are generaly su pled with two chamfers at the thre d

entranc , a cordin to the material to be thre ded an at the dis retio of the man fa turer

2 T oleranc s:

- for pre isio s rew in die :

- o D: fl0

-

o E: js12

- for n n-pre isio s rew in die :

-

o D an E: the toleranc s are lef to the dis retio of the man fa turer

4 Die sto k s - Inter ch n e bi ty dime sio s

(For metic an in h thr ead )

For s r ewin die with D > 2 m

Fig re 3 - Die sto k s

T ble 5

Dimensio s in mi metre

6

75

9

10,7

5 Markin

5.1 Scr ewin die for IS0 metic thr ead , th dime sio s of whic c nform with th s giv en in table 1 an 2, s al b marked with

t he thr ead d sig atio

A circ lar s rewin die for c ars IS0 metic thread (or e ample Ml) s al b mar ked as folows:

Ml

A circ lar srewin die for fin IS0 metic thr ead (or e ample Ml2 x 1,2 1 s al b mar k ed as folows:

Ml2 x 1.2

th s giv en in table 3, 4, 7, 8 an 9, s al b mar ked with th thr ead d sig atio

Example :

A s rewin die for IS0 in h thr ead , U C s rie (or e ample 1 4 - 2 1, s al b mar ked as folows:

l/4 - 2 - UNC

A s r ewin die for IS0 in h thr ead , U F s rie (or e ample No 12 - 2 1, s al b mar ked as folows:

No 12- 2 - UNF

A s rewin die for IS0 in h thread , t y pe BSW (or e ample I/Z - 121, s al b mar k ed as folows:

l/2 - 12 - B W

A s rewin die for IS0 in h thr ead , t yp e BS (or e ample 1 4 - 2 1, s al b mar ked as folows:

A s rewin die for IS0 in h thr ead , t yp e B (or e ample No 41, s al b mar ked as folows:

BA No 4

5.3 Wh re to ls c mply in al r es e ts with th r elev ant Inter natio al Stan ar ds, th smb l IS0 may b ap e d d to th mar k at

th dis retio of th man factur er

A nne A

(This a nn x forms an inte r al pa of th stan ar d.)

A nnex B

Scr ewin die with:

(This a nn x d e n t form an inte r al pa of th stan ard.)

A-A

Fig re 4 - Screwin dies B W, B F a d BA

Ta le7

Dimensio s in mi metre

8.2 F r “British Sta d rd Fin ” thre ds (BSFI

Ta le8

Dimensio s in mi metre

E

7

9

1

10

14

2

2

3

3

3

3

4

‘3.6

0.8

6

1

1

12

6

1,814

2,1 7

I

718 - 1 - BS

I

2 ,2 5

I 2,3 9

5

1.5

I

I

2 ,4

I

2 4

2,=

6

I

1 318 - 9 - BS

I

3 ,9 5

I

13

8

I

I

5 3

I

2 1 4 - 6 - BS

I 57,15

I

10

2.5

10

4,2 3

1

12

NOT ES

1 T e shape of the V-gro ve is lef to the dis retio of the man fa turer Screw in die are generaly su pled with two chamfers at the thre d

entranc , a cordin to the material to be thre ded an at the dis retio of the man fa turer

2 T oleranc s :

- for pre isio s rewin die :

- o D: f10

- o E‘: js12

- for n n-pre isio s rewin die :

-

o D an E: the toleranc s are lef to the dis retio of the man fa turer

B.3 F r “British A sso iatio ” thre ds (BA )

Ta le9

Dimensio s in mi metre

1 d 1Pitc 1D 1 D, 1 E ( E , 1 C / b 1 a

De ig atio

n m

-

5

B No 12 1,3

0,2

16

1

2

2.5

3

NOT ES

1 T e shape of the V-gro ve is lef to the dis retio of the man fa turer Screwin die are generaly su pled with two chamfers at the thre d

entranc , a cordin to the material to be thre ded an at the dis retio of the man fa turer

2 T oleranc s :

- for pre isio s rew in die :

-

o E: js12

- for n n-pre isio s rew in die :

-

o D an E: the toleranc s are lef to the dis retio of the man fa turer

UDC 6 1.9 2

De criptors : to ls, cutin to ls, thre din die , mark in