US1562173A - Lathe - Google Patents

Description

Nov. 1751925- *A`C HUGUET LATHE 5 Sheets-Sheet 1 Filed June l.

Nov

A. C. HUGUET LATHE Filed June l, 1922 s sheets-Sheet 2l nomtoz i W A. c. HUGUET Ngv. 17, 1925.

'LATHE Filed June 1. 1922 5 Sheets-Sheet 3 5in/vento@ my@ aum Nov. 17,1925- C. HUGUET LATHE 5 sheets-sheet 4 Filed June 1. 1922 Nov. 11, 1925 A. c. lluGuE-r LATI-IE Filed June l. 1922 5 SheetS-Sheet 5 Patented Nov. 17, 1925.

UNITED s'rArEs PATENT OFFICE.

ANTONIO COSTA HUGUET, OF BUENOS AIRES, ARGENTINA.

LATI-IE.

Application filed June 1,

automatically turning or cutting objects of -any desired shape, in relief or bas-relief, either on internal or external surfaces and with mathematic exactness.

rlhis invention essentially consists in arranging on the slide or rest of the lathe or cutting machine, a particular tool support, adapted to slide in an endwise direction, and a guide supporting device, also mounted to perform an endwise sliding motion, which latter device acts on a pattern or model secured to a iXed part of the lathe frame and urged against the same by means ofi a spring, both sliding devices being suitably linked together in Order that the movements of, one of the same will cause a corresponding` movement of the other device.

The invention further has for object a device of the above kind in which the thickness of the article to be turned or cut may be reduced or increased at will in relation to the thickness of the pattern or model, or the length of said article in relation to the length of the pattern, or both may be varied at a time, all such objects being obtained automatically and in a reliable manner, without requiring the aid of expert operators or turners, whereby not only a considerable saving in the cost of manufacture may be obtained, but also the respective Objects may be turned or vcut withinl a much lesser period of time.

The invention also views other objects which will appear in the course of this specification and will particularly be pointed out in the claiming clauses hereto annexed.

In order that the invention may be readiflly understood and carried into practice without difliculties, a preferred form of embodiment and several modifications of the 1922.A Serial No. 565,041.

same have been represented in the accompanying"drawings, in which Figure 1 is aplan view of the corresponding part of a lathe provided with the im-l` provements in accordance with rthis invention, arranged for front turning.

Figure 2 ris a view similar to Figurel, but with the device arranged for lateral turning.

Figure 3 illustrates in plan view, on a larger scale, the device according to my invention, as applied to the slide of the lathe. Figure illustrates a side view of the same.

Figure 5 shows a cross section of the said device, on a line passing through the central lpivot of the link or joint.

Figure 6 is a rear view of the device as applied to the slide.

Figure 7 illustrates in front view the arrangement of the pattern or model with its supporting elements in the arrangement of Figure 1. f

Figure 8 isl a side elevation also correspending to the arrangement of Figure 1.

Figure 9 is a side elevation, partially sectional, of the element carrying the tail stock of the lathe, while the Figure 10 illustrates a front view of the same.

Figure 11 illustrates a modified construction of the device according to this invention, as applied to obtain/variations in the lengthl of the object to Vbe turned with regard to that of the pattern or model.

Figure 12 shows a front elevation ofV the same.

Figure 13 is a side view which illustrates vthe operation'of said device.

Figure 14 illustrates the manner of applying a rotative` cutter to the tool supporting device.

Figure 15 is a similar view to Figures 1 and 2 whichy illustrates this invention as applied to ther turning or cutting of objects of different sections, either variable or constant and provided ornotwith designs` or'letters in relief or bas-relief.

Figure 16 illustrates a modiication of the pattern support inV the foregoing `arrangement which causes the pattern to follow the slide in its movement; according' to this arrangement, objects of a length equal to that of the klathe-may be turned by using a short pattern.

lil)

` tion.

screw Figure 1T illustrates a modified construction of the guiding device for the case when a positive pattern is to be used.

Figure .i8 illustrates the tool supporting` device provided with a series of tools, for operating on several objects in series, and

Figure 19 is a side elevation of the same device.

in all the said ligures, the same numbers of reference indicate like or corresponding.

parts.

Referring to the embodiment of the inv4fention as shown in Figures l. and l5, is the b se 'trame of the lathe which may be oit any itable or desired type, independ- 'ont oi this invention and which carries the linked together by means ot' a connecting member mounted to oscillate on a pivot 5, adapted to be adjusted horizontall;7 by means otx a slot G termed in connecting` meniber The ends ot' said member l are arranged fbelow the bridges 9 and 10, secured to said sliding devices so that any movement of one oi said devices will cause an inverse movement ot the other.) the range ot such movement being controlled by the position of the pin 5, as will be readily understood. 'One ot the said devices, such as 7, carries the guiding centre l5, suitably clamped by the plate ll seein d tion by means of screws and nuts i3, while the other devise fl supports the tool le. clamped by the plate serured in position by n'ieans oi" the dica tes the 'in e' --er-part oi the obje-zt 'to be although it will be evident Athat a pos Je model or pattern might beemployeil. in which case theelement l is replaced by the device illustrated in Figure 17 which lconsists of a curif'ed rod 96 which ctr ies'at its'end the guiding centre l5 in a frever Jd condition? said center being carried `:inthiscaseby the screw 97, for the purpose of :facilita-ting the adjustment of its positter -having effected rsuch adjust- An1ent,the screw 97 is locked by ineens of the 93. The rod 9.6 alsosecured by in'ieans otfthe plate ll and the screws on the sliding' center-support 7. ln this case fthefmodcl or pattern 'is turned, causing `the sameto pass to the opposite side of the slide block .the arms of the lever 4.

The pattern ormodel is carriedl means V by a support 207 adapted to slide on the member 2l which in turn is mounted to perform a sliding' movement in a direction normal to that oi: the suplgiort 21') on the block suitably secured to the base 'trame of the lathe. rlhe center support 7 is formed integral with a rod 23 on which is mounted a spring 2d which bears on a ii'xed collar for the purpose ot constantly urging the guide center against the surface oit the pattern or model. as will be readily understood. The pressure must be controlled in accordance with the class olE material under treatment and in accordance also with the depth or the work to be per'torn ed. all ot which is obtained by 'varying the tension o' the spring or by the mechanical devices he after to' be described. 26 indicates a handle Ytor imparting longitudinal movement t tion to the lathe.

b.1 ek 3l (similar to the bloeit 22 in Figure l is placed in the longitudinal direction of the lathe and 'on said block is sii-dably mount id the tail stock 80 carryingthe deed renter 29 of the lathe; 28 indicates the l c. conter, the yobject to `be turned, indicated. at 2'2", being supported between the said dea-il and live centers in the usual manner. The pattern i9 is in this case also placed on the sliding member 20, in the endwisevdirection or 'the lathe. The member 20 slides transversely on the member 2l and the latter travels in an endwise direction on the guide l.. It screw l2 is used to secure the engagement of the dead center 29 Awith the object 27 to beturned.

Figures-3, -l and 5 illustrate details ot the construction of Athis preferred embodiment ceive the head of the pin 5, which pin is secured .in position by means of afnut 35", 'for the purpose of varying the length of At the centre of said plate 3 at the underside thereof are termed-'two grooves 86 and 36a, of swallow tail cross section and arranged at right angles with regard to each other, by means of which said p'lateis allowed to slide along awcorresponding.guide :formed 1n the slide .2. In the top surface of the plate are required.

igeeaive formed swallow-tailed grooves 37 in which' travel the sliding members 7 and 8, as will be seen when referring to the drawing, a neat adjustment ofthe parts being obtained by means of the screws 38. At one of its ends, the lever 4 is .provided with a somewhat elongated hole 39 within which moves a pin 40, provided ywith a sleeve 41, saidy pin being formed integral with the sliding center-support 7 and placed below the bridge 9, the opposite end of said lever extending below the bridge 10. The bridges 9 and 10 are secured by: means of the screws 42 to the respective sliding members 7 and 3. 43 indicates a support secured by means ofthe screws 44 to the rear of the sliding center-support 7 and which may alsobe secured to the other sliding member 8, so as to permit of a change, to which vendthe said sliding member is formed with a series of screw holes, as clearly shown in `Figure 3. To the said support 43 is secured the rod 23, above referred to; said rod carries at its end a fixed eye or ring 25, secured after the manner of a clamp between two nuts 46 on the end ofa screw' 45 secured to theplate 3, so that by varying the position of said nuts, the pressure exerted by the aforesaidspring 24 on the slidingcentersupporty 7, may be increased or decreased as 47 is a screw operated by means of the handle 26 and adapted to turn in a bracket 49 formed integral with'the plate 3 and' which at its opposite end is threaded into the slide; this arrangement allows of lvarying theposition of the plate-3 in relation'to the said slide and causes the same to approach to, or recede from'th'ev object to beturnedv and the pattern or model as the turning operation progresses, thereby adjusting the pressure applied to the' work. Said screw may be placed in one direction or another, according to the position occupied by the plate with regard to the rest or slide'. In order'to change the position of the screw 45, the plate 3 is formed with piece 8 (see Fig. 6). v

In the form Vof construction represented ,inFigures 1 and 2, the model` or pattern V19 -is supported on the'member 2O by vmeans of screws 50 in the manner shown in Figs.

7 and 8. Said support 20 is provided at its lower face with a swallow-tailed grooveA which engages with a corresponding` guide formed on- 'the yupper part ofthe member 21, being -secured in position by means'of the screw 51. The supporting member Y21j in turn,'is mounted to slide -on the r`slide block 22, in a similar way, being conveniently secured in position by means of the screws k52. The said slide block 22is secured to thebase frame l of the lathe by means of a clamp 53, which, is perforated at its oppo- `Vvsite ends 'for' engagement with' threaded studs {S4-Wand 55 carried respectively by the block 22 and frame 1, the clamp being secured on said studs by nuts 54 and 55 respectively.` The block 22 is thus rigidly secured to the frame 1. In the construction above described, the position of the pattern 19 with regard to the 'centre guide y15 may be adjusted constantly and at will according to lthe requirements ofthe work and to suit the pattern .as the operation proceeds. The arrangement of the elements just described is the same with regard to the longitudinalslide block or guide 31 in the' case illustrated in' Figure 2, the block 31 insaid ligure corresponding to the block 22 aforementioned. f .Y

,Said block 31v is supported on thebase frame 1 ofthe lathe by means of the bracket 58 :(Figs. v9 and 10) at a suitable distance above said frame so as to allow of the passage of the slidek 2. Said bracket issecured tothe'block 31 and frame 1 respectively by means of studs and nuts 59 and 60,'.as'is clearly shown in Figures 9 and 10. On said block 31 is mounted lfor endwiseY sliding motion, by means of the swallow'tail guide shown, the tail stock 30 carrying the dead center 29 of the lathe, the latter being arranged within a circular opening 61 formed in said tail stock which when desiredmay also be used as supporting block, as `will hereinafter be explained. A' i Said circular opening 1s closed byV means y of a plate 56 secured to the 'supportv by means of screws and provided with an opening into which may be threaded thev screw 32, for the purpose of applying pressure to said dead center.`

The operation of the devices above.` describedl requires no further explanation, as the same will be readily understood from the foregoing description by yany person skilled in the art. The relation. of depth vbetween the pattern and the object operated upon,1 is adjusted by means of the screwl 5, byvarying its position in the4 groove 33.

- i Forf the purpose of adjusting the relative 'length between the ypatterny or model and the object under treatment", by varying at will the proportions ofthe same,; the arrangement illustrated inFigures'll to 13 ymay be employed. In said views, 62l indicates an ber'166, .and on `said member 66 is mounted toA slideV ina direction. at right angles to the tool'fvsupport or head 67 which issimilar. in alllrespects to the t'ool-carri'erp,A above-described.` LfInfthis formofy construction, the E130 ,directionof' movement VVof said member, :a

bridge of the tool-carrier 8 has been dis pensed with and the lever 68, which `takes the place of the lever 4 hereinbefore described, carries an extension provided with an elongated slot 69 placed below the bridge 70 of the tool-carrier 67 and whichv bridge may be provided with a depending stud (not shown) for engagement with said slot thereby to assist in guiding the tool carrier in its reciprocatory movements transversely of the memberA 66. The provision of the slot also serves to lessen the weight of the lever 68. The sliding movements in a direction parallel to the guide support 7 Aare transmitted in the same manner as before by means of the said rod or lever 68 and the relations'of depth may be. adjusted by positioning the pin 5. As hereinbefore stated, theftool-carrier 67 also is capable of sliding movement in a longitudinal direction, corresponding to the length of ythe work to be turned. These movements, which may be obtained in several ways, are produced in the present instance as follows: The slide member 66 is provided with two lateral stops 76 with which engages a fork 75, formed integral with a lever 73, which is provided with a longitudinal groove Y74. To the lower part of the said lever is linked the end 76 of a rod 77 the opposite end of Vwhich is pivotally connected at 78 to the slide or rest. The lever 73 is pivoted, intermediate its ends, to a stud 72 carried by a bracket 71 which is Vrigidly secured to the bed'frame of the lathe, the vertical portion of lthe bracket being also provided with a slot similar to the slot 74, whereby the stud may be secured to said bracket at any point in the length of its slot andv of the slot 74 in the lever, by means of a collar 72a fixed on the stud and a nut 72b threaded on the end of said stud as clearly shown in F ig. 13. It will thus be seen that, by varying the position of the pivot 72, the ratio of the length of one armof the lever 73 to that of the other may be varied, andtherefore, for a given movement of the slide, the toolcarrier 67 ywill be given a movement propor tionate tothe ratio between said lever arms, as will be readily understood. u

When desired, a revolving cutter 79 may be arranged on the tool-carrier, as shown in Fig. 14 said cutter being mounted in a sleeve 81, provided with ears 82 and 83, sc-

cured by means of the screws 14 and 84 to the sliding plate of the tool-carrier. The tail or end 8O of said cutter may be rotated from any suitable source of power and by any convenient means.

When it is desiredl to operate in series on severaly pieces of work, then several tools may be positioned in series on the tool-can rier which may be effected by means of two plates 97 and 98 (see Figs. 18 and 19), secured by the common plate 12 and the on the longitudinal shaft 85, caused to rotate by means of the lathe in the usual way and supported by the dead center 86. The model 87 is secured on'the shaftby a collar 88 fixed by means of screws or the like, while the object 89 to be operated upon is secured to said shaft by collars 90 and suitable set screws, said collars being splined to the shaft by meansof keys 92 which engage a longitudinal groove 91 in the shaft thereby to prevent rotation of the collars relatively to the shaft. The operation of the device will be readily understood and the model or pattern may be reproduced of the same or other lengths, either as a positive or negative, as may be desired. When it is desired to reproduce a short model or pattern of unvarying cross section along an indefinite length on the object operated upon, then the collar 88 is removed from the model and this latter is secured by means of a rfork 93, secured at 94 to the guide support, so that as the slide 2 moves along, the model will also be shifted, as will be clearly understood.

It will Ybe evident that the invention may be carried into practice in manners different from that above described and shown and that in consequence the invention is not limited thereto, but, on the contrary, the same may be varied as to the construction and arrangement of parts within the scope of the claims hereunto annexed.

The several manners of using this invention have not been set forth in detail, as these may be all or any of the uses of a lathe while it allows of automatically performing operations which up to this date could be done only by hand, thereby effecting considerable saving in time and labor and permitting of the' exact and perfect reproduction of the model or patterns.

Having now described my said invention, I declare that what I claim as new and desire to secure by Letters Patent, is :f- 1 1. In a machine of the class described, the combination of a slide block, a plate supported thereon, a pair of members carried by said plate and slidable in parallelism thereon, one of said members being adapted to carry a tool and the other to support a center' guide, Ya pivoted link connection between said slidable members, the pivotal point of said link being adjustable, means u for supporting a pattern on the frame of the machine in position to be followed by said center guide, said means being adjustable to vary the position of the pattern relatively to the guide, and means for constantly urging said center guide against the surface of the pattern. w

2. In a machine of the class described, the combination of a slide block, a lever carried by said block and pivoted at a point intermediate its ends, said lever carrying at one side of its pivot a tool support and at the other side a center guide adapted to follow a pattern supported at a fixed point on the nected to said tool-support and mounted on `a pivot adjustable longitudinally of the lever, anda rod pivotally connected at one end to said slide block and at its opposite end to said second lever.

In testimony whereof I have signedl my name to this specification. t f

AANTONIO COSTA HGUET.

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