Tiêu chuẩn iso 01711 2 2016

© ISO 2016 Assembly tools for screws and nuts — Technical specifications — Part 2 Machine operated sockets (impact) Outils de manoeuvre pour vis et écrous — Spécifications techniques — Partie 2 Douill[.]

A ssembl y tools for scr ews and nuts —

Part 2:

Outils de ma oeu r p ur vis et éc ro s — S écifications te h iques —

Partie 2: Do ille s à machine (imp c t)

T ir d edition

2 16-1 -1

COPYRIGHT PROTECTED DOCUMENT

© ISO 2016, P blshed in Sw itz rlan

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the r eq eser

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Tel + 12 7 9 011

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F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Test tor io tor ques 1

5 Materials 2

6 Hardnes testing 2

7 Torque testing 2

7.1 Method 2

7.2 Tes of machine-o erated sq ar e drive socket 3

Biblog raphy 6

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

For an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lated to conformity as es ment,

as wel as information a out ISO’s adhe enc to the Wor ld Trade Org nization (WTO) principles in the

Te h ical Bar ie s to Trade (TBT) se the folowing URL: www.iso.org/ iso/for word.html

The committ ee r sponsible for this document is ISO/TC 2 , Smal to l s, Subcommitt ee SC 1 , As s embly

to l s fr s c rews a d n ts,pliers a d nip e s

This third edition canc ls and r plac s the se on edition (ISO 1 1 - 2:2 1 ), w hich has be n t ech icaly

r vised with the folowing chang es:

— Cla use 4 has be n ad ed, giving empiric formulae for minimum t es t orsion t orq es as a fu ction of

width ac os flat ;

— in 7.1 the anglechamfe α of the t es man r l in Figur 1 hasbe n changed from 3 ° ma t o 1 °≤

α ≤3 °;

— r vision of siz s for width ac os flat co e ed in Ta le3;Siz s 3,5, 4,5, 2 an 2 ha e be n delet ed;

— r vision of minimum t es t orq e v lues in Ta le 3

A l s of al p rt in theISO 1 1 se ies can be fou d on the ISO websit e

When t es ing machine-o e at ed imp ct ocket , the e ar thr e ty es of t es ing that could be r lev n

— t orsional t es ing;

— imp ct t es ing;

— end ranc t es ing

This document co e s only t orsional t es ing of machine-o e at ed socket Pr sently, the t orsional t es

an hardnes v lues given in this document ensur socket wi l las a r asona le impact l fe if the

a pro riat e t ool is used

An imp ct t es or en uranc t es is desir d, but at pr sent, the e is no proc d r suita le for

s an ardization a aia le This wi l be an is ue for a futur r vision of this document

A ssembl y tools for scr ews and nuts — Technical

Part 2:

This document spe ifies hardnes an minimum t orsional s r ngth for machine-o e at ed sq ar drive

socket in ac ordanc with ISO 2 2 - 2 int ended for use with imp ct wr nches

E AMP E R eference nos 22 0 0 0; 2 2 0 0 0; 5 20 04 0

NOTE T e sockets mentioned a ove are list ed u der their respective reference n mb r in ISO 170

2 Normati ve r eferences

The folowing document ar r fe r d t o in the t ext in such a wa that some or al of their cont ent

cons itut es r q ir ment of this document F or dat ed r fe enc s, only the edition cit ed a ples F or

un at ed r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment ) a ples

ISO 6 08-1, Metal c mate ial s — R ockwel h rdnes s tes t — Part 1: Tes t meth d

3 Terms and definitions

No t erms an def initions ar lst ed in this document

ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:

— IECEle tro edia: a aia le at ht p:/ www.ele tro edia.org

— ISO Onlne brow sing plat orm:a ai a le at ht p:/ www.iso.org o p

4 Test torsion torques

The empiric formulae giving minimum t es t orsion t orq es, M, in newt on metr s, as a fu ction of width

ac os flat , s , in mi imetr s, ar given for information in Ta le 1

The minimum t es t orsion t orq es t o be a pled ar given in Ta le 3

Table 1 — F ormula giving minimum test tor io torq es

Nominal dimension

for driving squar

Minimum t es t orsion t orque

M

N ⋅ m

2 6,5⋅ s

,8

,2

,5

Socket , driving sq ar s an al ac es ories shal beman factur d from st eel

The chemical comp sition an heat tr atment shal be t o prod c t ools conforming t o r q ir ment

spe ified he einaft er

The hard es t es shal be car ied out in ac ordanc with ISO 6 0 -1

Socket an at achment shal be hardened an t empe ed t o R ockwel hardnes v lues given in Ta le 2

Table 2 — Rockwel hardnes v alues for machine-operated sockets as functio of driving

square and hexag on width ac os flats, s

a

Hard es

HRC

Driving squar nominal siz

b

3 to 4 — 1 ≤ s ≤24 1 ≤ s ≤ 34 17 ≤s ≤ 60 27 ≤s ≤ 70 36 ≤ s ≤70

a

Width a ros flat s are a c rdin to ISO 272

b

For dimensions of drivin sq ares, se ISO 1 74-2

7 Torque testing

The minimum t es t orsion t orq e v lues t o be a pled ar given in Ta le 3

The socket shal be fuly eng g ed in a hex g on t es man r l as shown in Figur 1 The height, h, an the

width ac os corne s, e

min , of the mandr l ar spe if ied in Ta le 3 The angle of the chamfe α shal be

betwe n 1 °an 3 °

Smo thly a ply the lo d u ti the minimum t es ing t orq e as given in Ta le 3 is r ached

Thenominal ac os -flat dimension of the t es man r l shal be eq al t o the nominal dimension, s , with

a t ole anc of h8 The man r l shal be hardened t o not les than hard es 5 HRC

A devic in w hich the man r l can be rotat ed at a c rtain t orq e det ermined with an ac uracy of ± ,5 %

can also be used for thist es

F ol owing the a plcation of the minimum t es t orsion t orq e, any p s ible damag e or deformation shal

not afe t the usa i ty of the t ool

Table 1 (c ontin ed)

α angle of the chamfer, 1 ° ≤ α ≤ 3 °

e

min

width acr os corner

h test man r el height

s width acr os flats

NOT T e use of the 3 ° chamfer wil red ce the efectiv e eng g ment which might afect the ultimate

test orq e

Figure 1 — Test mandrel height, h, and width ac os flats, s

7.2 Test of machine-operated squar e dri ve sockets

A sq ar man r l of hard es not les than 5 HRC shal be used for driving the socket for nominal

width ac os flat 2 mm an smale A sq ar man r l of hardnes not les than 5 HRC shal be used

for driving the socket for nominal width ac os flat 24 mm an larg er The nominal width ac os -flat

dimension of this man r l shal be eq al t o the ma imum dimension, with a t ole anc of h8, of the

cor esp n ing sq ar drive

The a is of the two man r lsan the a is of the socket shal r main co xial d ring the t es

T able 3— Minim um test tor io torq ue and test mandrel heigh t as a funct io of widt h ac os f lat s

Nominal

width

ac os

flat

s

Minimum t es t orsion t orque

b

M

N·m

Tes man r l

mm

Driving squar nominal siz

c

Heig t

h

h1

W idth ac os

corne s

e

e

min

6

a

9

a

1

a

d

14

a

75,0

d

d

2 0 d

d

2 0 d

17

a

75,0

d

2 0 d

d

1

a

d

65 d

2

a

d

65 d

d

65 d

2

a

d

65 d

2

a

d

65 d

d

65 d

2 2 0 d

2

a

d

65 d

2 2 0 d

d

2 2 0 d

d

2 2 0 d

4 0 0 d

3

a

d

2 2 0 d

4 0 0 d

d

2 2 0 d

4 0 0 d

d

4 0 0 d

d

4 0 0 d

d

4 0 0 d

d

4 0 0 d

1 1 0 d

d

4 0 0 d

1 1 0 d

a

Not a c rdin to ISO 272

b

He agons larger than tabled siz s are req ired to pas the hig es tabled tes tor ion torq e value shown for the

ap lc ble drivin sq are

c

In a c rdanc with ISO 1 74-2

d

The tes tor ion torq e values have be n lmited d e to the s ren th of the drivin sq are for that he agon siz

e

e

min

= s

nom

× 1,1 values of e

min are rou ded with two de imals

Nominal

width

ac os

flat

s

Minimum t es t orsion t orque

b

M

N·m

Tes man r l

mm

Driving squar nominal siz

c

Heig t

h

h1

W idth ac os

corne s

e

e

min

d

4 0 0 d

1 1 0 d

d

1 1 0 d

d

1 1 0 d

a

Not a c rdin to ISO 272

b

He agons larger than tabled siz s are req ired to pas the hig es tabled tes tor ion torq e value shown for the

ap lc ble drivin sq are

c

In a c rdanc with ISO 1 74-2

d

The tes tor ion torq e values have be n lmited d e to the s ren th of the drivin sq are for that he agon siz

e

e

min

= s

nom

× 1,1 values of e

min are rou ded with two de imals

Table 3 (c ontin ed)

Bibl og raphy

[1] ISO 2 2, Fas tene s — Hex g n produc ts — Widths ac ros s flat

[2] ISO 1 74- 2, As s embly to l s fr sc rews a d n ts — Dri v in s qu r s — Part 2 : Driv in s qu r s fr

p we socket to ls

[3] ISO 1 0 , As s embly to l s fr sc rews a d n ts — Des ig atio a d n menclatur

[4 ] ISO 2 2 - 2, As s embly to ls fr s c rews a d n t — S u r dri ve socket — Part 2 : Machine-o e ated

socket (imp c t”)

ICS  25.140.01

Pric based on 6 pag es