US813381A - Adjustable support for metal-working tools. - Google Patents

Description

BFJEEVED FER 20, i906: v B. M, Wn ANSN.

ADJUSTABLE SUPBT FR. ME''L WRCIG Tn@ Hummm .FuE-.D HOV. 29,1902( No. 813,331, PATENTBD FEB. zo, 190e.

B. M, WgHANsoN. ADJUSTABLE SUPORT ma METAL WUREING TOOLS.

AFPLIGTIO FILED H-OV. 29,1902,

f1 SHEETS--SLEET 2 PATENTED FEB. 20, 1906. Bs W. HANSON., ABJUSTLLE SUPPORT FUR METAL WGRKNG TGGLS.

APPLICATIGI? .FLED NOV. 29,1902.

SHEDTEPSHEET `3.

Nmwei. H PATENT@ ma. ze, 1906.

E. 'wi HANSUN. MUSMBLB www? ma METAL maxim@ APLIGATION FILED NOV. 29,1902l 4 SHEETS-SHEET i No.V 813.381.

Original applicatif1 ile July 12,1902, Serial No. 1.1.5;337, Dvialozl :md thin epplirmtinn. Filed lecfemeei: 29; 160,11. erie 155W.

T LZZ whom, it may concern:

Be it known that l, il'. FL/ Hemos; e citizen of Sweden, resid'. et ltler''orrl, .in the county of Hertford and Stime of Comme sie eut, have inventefl eeruein new and ai l improvements in Adio, .able lupports for Metal-Working Tools, of which tire following is e specification.

My invention relates to adjustable sup loA orts` for rnetel-Workimg tools of various inds-ee, for instel/ree, milling; Millers, grindingend bu'iing (lieke,v emi sammy wels and eontriVen-ees in. the'use of" wheh it.v Deny be desired 'to set tit-.e tool et differ, angles with relation te the wiforl.. y

'AS shown, the ejusmble oolesupper'. ries the arbor :mel gearing for dri lg; me same of a'rrrlling-euter, efl. pl;e l i emplicetion given to form worms, or spirals on steek held in e suitable erucl'.

Primarily the objeet or the'invenbien ij? e provision of ineens whereliiy the looiopere may be adjusted te the angie requi roi e,

given' oiteh of thread or spiral 1mi Lia-eri. se cured mlym position. -l A further object ot the H11/'emma le the provision of a. tooksupporu mouneeri on 'nions, whereby it may lie sdjused to 4 the wol at the desired angle, emi of meer preferably ooperatingrwith one of the tren nions, for securing Seifi support in s v justerl position.

Referring to the drawings, Figure E is aside elevation of a nietelwvorkiug rxieel'iine i, ilye my invention in position ou the carri thereof. Fig. 2 is a. side View oi the me which the improved tioobsuppor is n the Work being shown in section. if:

horizontal SectionV teken on ,line je :12 with parts shown in elevation. 'perspeetiveview of the cutter-slide l elements with parte broken ewey, and i4` is a detail perspective View ol one of the nions and lts retaining-smear Like nurnerels deeigyriee throu hout the several views. .Referring to the drawing@ lesignntes the 'frame or bed of xenium@ which may be lof may desired S33 e ...nel e@ i struction. Rising from lvl'ih be@ ere iieels 1f and 3, respectively, in the former ofjfiiier` journnled e chunk-'spindle 4r and in the leem l 'Tl v` l simmer we vll mili tire irai; 22 ie llir brews 2.5, elle heed,- ree-ess ermeri in ne erm, el. e. or W e nereirmfim described, eeifi ser *he 5ml: to seid erm el uit; n ne me me, efe.. e.. is. e ennemie is sf l shown) actuated bya shaft required, and thefobjeet of the construction bearing extension il, and thereby cause the A hns( IThis improved follow steady rest constiili'io'n this shalt 30 a. spur-pinion 32,1the teeth ol which are in engagement with a larger spur-i'iinion 33,-carried upon a shaft Bei, journeled in bearings of the adjustaible "ruine 28. ,y -i

NDesignated by the liguri/eral is, a shaft to which the tool 36 (shown asa milling-cutter) is secured, and this shaft is -lso journaleil in a bearing of the adjustable frame and carries n, pinion 37 in engagement with the large gear 33, as illustrated in FigQjS. lt is lcsirable at times to vary' the position ol the cut ter with relation to the Work, sothnt it may be set at rlii'lerent inclinations thereto when just described is to enable this result to be effected in n reliable, quick, and convenient manner.

rlhreaded upon the sleeve 13 exterior of the bearing' extension 11 is a nut 38, provided with openings-38 in its periphery, in which a tool may be inserted to turn said nut, and between this nut and the end of said bearing extension 11 is a Washer 39. l

When it is desired to Vary the angular relascrew 2li are loosened suiiiciently to permit the cutter-frame 28 to be tilted to the desired position, the sleeve 13 and hub 22 attached, respectively, to said frame by keys 40 and screws 25, rocking in .their seats or bearings,

anni after thedesired adjustment has been .attained vthe n ut 5381s turned against the washer 3) to force the saine against the end of the bearing 26 of snirl frame to be brought tightly against seid extension l1, and the screw 24 is also turned to cause the 'bearing 27 to be brought into close contact with the bearing exto. ion 12.

if o sustain the work and prevent it from springing'while the tool 35 is inv operation thereon, n. follow or steady rest (designated in a general way by e2) may be employed, the l oi said steeuyhrest tbeing fitted upon a guidefif of the slirle 10, adjustable upon ways of the carriage, and suitable means (not effi, having e hanzlle 45, being; employed for securing the base oit the steady-rest alter adjustment'. ln nrecess or the stend ard le of said steadv-rest is littefl p:irtially-cylinziirieal open bus ring 47, secured in piece by a pin 48, i'nissingthrough the stendere, as illustrated in FigsQ and 3.

io purt of the misent.iii'ventioin it beforti "ind claimed in my concurrently .ng implication, Serial lilo. lfl( 7.-l For advancing and retractiiw the'carriiige 7 upon the slienrs el lied any ilesire'rl ineens may be en'iployedv--ior instance, n lead-screw 49, (see dotted lines, Fie. 1,) and for nctuat. ing this lead-screw a change-,gear train of gears 5U, driven from the chuck-spindle 4, may be utilized', as set l'orth in my application l filed July 12, 1902., Serial No. 115,337, of which the present case is a division.

To provide for adjusting the cutteieirinne to set the cutter accurately at the desired enqle for any given spiral, greduations 51 are ormed on the arm of said freine, as shown in Figs. and 4.

For adjusting the cutter-slide 10 to cause the cutter to form the thread or spiral to the correct depth a screw 52, having a inicromen ter-heed 53, is employed, as shown in Fig. 1.

To protect the OVearing and shafts of the cutter-driving mec ianisin, lthey are inclosed `by a hood or casing 54, as shown in Figs. 1

and 4.

Operation: .Work linished to size for the required' diameter of the spiral to be cut is placed in chuck 4 and supported at its rear end on center 5 and screw 52 is turned t0 ed- -just slide 1() until a ytooth of Athe cutter 36 just touches the work, and the mibroineter 53 is set to Zero. Adjustment of the carriage'? along the machine-bed is then made until the tooth othe`cutter passes beyond the end of the Work, and the cutter-slide is advanced by screw 52 until the correct depth of the spiral to be formed. is indicated by the micrometer, this depth being determined by a scale-table furnished with the machine, and said slide is then clamped rigirlly'in position by a screw 55.- Then with the proper gearing in place in train 5() the inaehine is set into operation and the cutter commences, its work, suitable stop and clutch shifting niechanisrnswlor instance, those set forth `.in Ymy a plication aforesaid, but not herein showne eing employed to control the movement of ter-slide.A By tilting the frane 28 upon its trnnnions (the gear '31 rotating over pinion 15) and then clam ing it in position by the ineens described t ie'cutter may be readily set at the desired angle for the giyen pitch of thread, and as the axis of the cutter intersects the exis or' the frame and the pointof intersection is in the same horizontal plane as that of the axis of the s irai to be formed and in the saine ver ical ane as the exis of the trnnnions 13 and 22 t e mints of the cutter-teeth While in action will always be level with the axis of the Worksnotwithstanding the angle to which the cutter may have been adjusted. .in other words, the center line of the cutter 36 is in the same horizontal plane as the center line of the screw to be cut und in the saine vertical plane as the center line through the trunnions, whereby no matter to what angle the cutter may be set the point of the cutting tooth is always level with .the center line oi; the work.

While the machine is shown in :position for cutting right-hand spirals, yet it canrenclily be adapted for cutting lel't-hand ones by melting suitable changes in the geur-trein 5() and swinging the cutter-frame 28 over' to. the opposite engle.- So, too, il it is desired to the cut- ICO naled in bearings pf said standards, one of nion, and serving to draw the same Within bore of the other trunnion, and

` special means for actuating said devices.

4tween said standards; bearin s of the standards, one 'of said trimshaft jouriialcd in the cutter-frame and havsiasei cut toward the tail-stock this may be accomplished by reversing the motion of the leadscrew.

' From what has been stated it will be seen that a universel machine capable of forming all kinds of spirals-such, for instance, as precision-screws, lead and fecd screws, thrustscrews, and spiral gears-is provided, said machine being composed of comparatively. few parts and beinU simple and compact in construction and re iable in operation.

Changes may be made in many of the details of construction without departure from the invention, which is not limited to the exact devices shown and described nor to any Having thus described my invention, what I claim is 1, The combination, with a slide having bearings, of an adjustable cutter-frame having trunnions journaled in said 4Jbearings; means for fixing the frame in position after adjustment; a pair of shafts journaled in the cutter-frame; a gear secured to each of said shafts; a gear journaled in the cutter-frame intermediate to, and in' mesh with, the shaftgears; a shaft passing through one of the trunnions and carrying a gear for driving one of the pair of shafts; and a milling-cutter secured to one of said shafts, the axis of said millingcutter intersecting the axis of the cutter-frame, and the point of' intersection being in the same horizontal plane as the work-s indie. i

2. T e combination, Witha slide havingr standards, of an adjustable cutter -fra1ne; trunnions carried by said frame and joursaid trunnions being externally threaded and the other provided with a threaded bore; a nut upon t e externallythreaded trunthe threaded having a head bearing against one of the standards; a rotary cutter carried by the cutter-frame; and means for actuating said cutter.

3. In .a machine of the class specified, the combination, with atool-carriage having standards, of a cutter f 'i'raine located betruniiions fitted. in

its bearing; a screw engaging nions raving a longitudinal bore; a shaft` mounted in said bore; means for rotatingsaid shaft; a fear secured to said shaft; a

ing-a pair of gears. one of which is in mesh with the gear on the shaft mounted in the bore of said truniiion; a second gear jouriialed in the frame and engaging the other oi i said pair of gears; a cutter-shaft having a gear in mesh with said second. gear; and a milling-cutter secured to the cutter-shaft.

4. rlhe combination, with a support, of a cutter-frame; trunnions projectin(r from said frame and entering bearings ci7 the support, one of said trunnions having a hollow portion with an internal thread. g screws for securing said internally threaded trunnion to the support; and a screw engaging the thread of said tiunnion and having a bearino against the support.

5. rl` e combination, with a support, having standards provided with bearings, of a chambered frame having fixed trunnions mounted in said bearings, one of said trunnions being tubular; means applied to each trunnion for securing the frame against movement; a driven shaft passing through the tubular trunnion; a bevelinion on the end of said driven shaft; a shaft journaled in the frame; a bevel-gear in en agement with said bevel-pinion, and carried y said shaft; gearing mounted in a chamber of the frame a cutter-spindle driven bysaid gearing and a millin -cutter secured to said cutter-spindle.

n a machine of the class specified, the combination, with a support having standards provided With bearings, of a frame having fixed a nut threaded on one of said trunnicns at the outer side ofone of the bearings: a screw tapped into theth'er trunnion and having head bearing against the inner side 6i' the standard in the bearing of which said trunnioii is mounted; a tool-spindle jourhnaled in `the frame; and means 'for driving said toolspindle.

head

7. in a machine of theclass specified, the

combination, with means for supporting and rotating work, of a reciprocatory carriage; a slide transversely adjustable on said carriage, and having standards provided with bearings; va 'frame .having fixed trunnions journallied in said bearings, one of said trimnions being tubular; means; for securing the frame against the fstandards; a shaft jouinaled in the tubula'L trunnion; a bevel-pinion secured to said shaft; a shaft jeurnaled in the frame a bevel- Year on said shaft; a spurpiiiion also on said shaft; a spur-wheel; a cutter-spindle Icarrying a spurinion in engagement with said spur-Whee anda millingcuttei carried by the cutter-spindle.

.in testimony whereof l ailix my signature in presence of two witnesses.

, BENGT M. W. l'iANSON. Witnesses: D

C. S, Goonaicii, Il. E. BAiLiir.

IIO

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