~'-- \ ,\ } FI I SE F E operations other than turning are possible on a lathe fitted with a few attachments and these enable further operations ttl be carried out without The following attachments are avaiiable for recourse to special machines. Lathes. !, Collet Attachments. This type of chuck provides a most accurate means of gripping work, the accuracy being 0'0005 in. at the collet nose, and 0'003 in. at a distance 3 in. out. Use of attachments is not restricted to cylindrical work and collets for square or hexagonal bar can be prov"ided. released during taper turning.
Taper turning at any point along the bed can be achieved by setting the support bracket at the rear end of the bed to the desired position. /w~~ ~" " rT {--I / ~ ~~. /" ,--+j'" ~, ~~ t--4~ ~ ~ ~ ~ (i) Draw Tube Type CoHet Attachment To fit the attachment, remove chuck or faceplate, centre and sleeve from spindle nose. Pass the draw tube through the spindle from nose, then assemble hand wheel and clamping nut onto tube. Mount the spindle nose cover onto taper and secure with draw-nut which is integral with spindle. Assemble the closer bush into mouth of spindle, insert required size of collet and screw onto draw tube.
The standard range of collets is from 16" to If' maximum in increments of -(5-'7- but any size within this range (including metric) can be provided. ;j- I ~'-. ---'.-{ ,- s~~ __ _ 1'-1 !-.,: ------'3J.+---- ------- .Y.""~ ~~--~ --~ ~ --~_.~:=:--:"- 7: ~~---~ L..: ---:--------::::::::::=.-. --~ A- --....,:;; ~ ~ ~--' --5 ~ '-""""c ~i i: ~ ~ eli) Mu!tisize Collet Attachment. The complete assembly is mounted on the spindle nose. Collets are inserted after removing the closer "bush \vith the -v;'Tench provic.ed. The capacity of the attachment is 1" to I ~" and is coyered bv II' coll~ts. - ~ Cb"TRA,.:S!NG MA>:j: F,S Y ;:'9 Z ciirecti~n 'A' 2~d set uf_.shoWD in. ~ig:.
Z \vit~, s~ddle traverSIng In GlrectlOn 1)' 1t IS adVIsable to ellTII1Ilate For set up shov:r: in Fig~ "y \vith saddle traversing In ~acklas? b.e~\v~en cro:s s~ide sc;~"v;~. and~ ~U! b~e~ore ~ngag~ng Tap~r Turnir;.g t;.tta~hme!1t. ~'h.ilst.it is, preferr,e? that this att2.cnr;ren~ be ntt.ea at t~e~~jorks, l1ttl,e Gl~CU1~y .. s00Uld b~ e:p~rl ~~~ ~~~~ ~~~:~~~e c:~L~~t~~~~~n~\~na~~::~:n~\~~Vt~~~l~~ the correct :utt':ng DO~lLj\Jn. \\:'ith saddle tra~t"~si:1? Hi opposite directions to tnose snov\·n. in Figure~ ~- c~; Z~ backlash het"\\Teen cross slide scre\71,~ and nut is removed no:-m2.1 ad~lancemenI of the tooL 4 g:neer .WlS?lng to m~K; tIns a.ciOltlc·n t~t t?e.latne.
Bolt holes are drilled In tne rear 01 tne carr12ge on all lathes to ence~ Dy tne en acc~pt the support bracket of the attachment and an assembly instruction draviing is supplied ,-vith each unit. Taper TUi"ning of lengths up to I I in. (297 mm.:; w'ith included angles up to 20 d~grees can be carried out, graduater. scales being f'rovide·2.) :-eading degrees Change 0~·Jer to normal turnlIlG as fo11oV1S:- Sct s\",:ivel ba:- to ze!"0 graduaticn:. ~t the ta~lstock end ~nd inche~ taper per foot ~: the head~t~cK end. instrUCtIons for sett1ng up p:n .. OT to tap~:- turning are as 10110\\'s - Re 'loase tho t\"O ~U~C ,~'lam";~~ ·i-e ,'-,;,,01 'b~r on. ~O t\"o ................. ~ "~- 1.J. 1...:) ....
'1. ~'.I..:lb l::.~l ..... _:~ 1 ...... ;. G,,, ~ ::;"_ I. ".L.l..1..- reqUlred angle D=\~ means or the 8.Q}ust.:ng scre'l,;;: a1 tne rear and reclaffip. Release the t\VO socket head cap screv.rs at the left-band side of the att2ct:ment - these mus: Temaa). :t~-it~d~a,-;; 5ErpO~:: !J~S.Ck~l to lailstock end 0: bed. ;" .. Qci~ tne t\.~·c soc::et h:::aC car scret;,:s. M [Hi ng .tCa~'!:ach ment. "[Iii,. a.::d~~ncD:: i:.; mounted on to tbe COrD.- pound s~id~, replacing the lOO~ pr~: -rh:: ttt~ vee g:-oo\>ed Slide has v::.":;:ti:3.: ,,:::::!~'V; ad!ust:T. .... '~T 2.I1~~ i'~ 3.7"rar~;:...·d tc; sv,?ivel againST 2. scale 10