US2436858A

US2436858A - Nut-assembling machine

Info

Publication number: US2436858A
Application number: US510756A
Authority: US
Inventors: Eisele Karl
Original assignee: Camloc Fastener Corp
Current assignee: Camloc Fastener Corp
Priority date: 1943-11-18
Filing date: 1943-11-18
Publication date: 1948-03-02
Anticipated expiration: 1965-03-02

Description

March 2, 1948. K, EISELE I NUT-ASSEMBLING MACHINE Filed Nov. 18, 1945 5 Sheets-Sheet l INVENTOR.

' Earl Elke/e BY I wfi fiww March 2, 1948.-

K. YEISELE 2,436,858

NUT-ASSEMBLING MACHINE Filed Nov. 18, 1-945 5 Sheets-Sheet 2 IN V EN TOR.

M {QM wm March 2, 1948. 5

NUT-ASSEMBLING MACHINE 5 Sheets-Sheet 4 Filed Nov. 18, 1945 INV;ENTOR. Kari iisela HTTO/RNEYS March 2, 1948. K. EISELE NUT-ASSEMBLING MACHINE F iled Nov. 18, 194:5 -5 Sheets-Sheet 5 IN V EN TOR.

\ Karl iilseie #TTOIPNEYS mmmmw Patented Mar. 2, 1 948 UNITED s'rArEs PATENT OFFICE 2,439,858'

Karl Eisele, Belleville, N. J1, assignor to Camloc Fastener Corporation, New York, N. Y., a corporation of New York 7 Application November 18, 1943, Serial No. 510,756 15 Claims. (01. 10-86) This invention relates to a structurally and functionally improved apparatus for the formation of nut elements and particularly elements of this nature which include a bored and threaded body to be contained within a shell and with which assembly there is associated a fiber or equivalent washer or disc.

In its more specific aspects, it is an object of the invention to furnish a mechanism of this type which will be particularly useful in constructing or assembling nut elements of the type shown, and practicing themethod illustrated in the prior application for United States Letters Patent filed on June 23, 1943, in the name of J. Mills Summers, and identified under Serial Number 491,895.

It is a further object of the invention to provide a machine of this type and by means of which the several parts of'the nut assembly will be disposed in proper and predetermined relationship with respect to each other and will thereupon be staked or secured in an improved manner against relative shifting.

Another object is that of designing a machine in which the completely assembled elements will be positively ejected anddelivered; such delivery occurring without any liability of damage to the finished units.

An additional object is .that of providing a machine which may be capable of sequentially receiving the several elements which provide afinished nut unit and grouping these elements in a predetermined and desired manner with respect to each other.

Still another object is that of furnishing an apparatus of this character which will include relatively few parts, each individually simple and rugged in construction; these parts operating with maximum speed over long periods of time and with freedom from all diificulties, to furnish units as afore described.

With these and other objects in mind, reference is had to the attached sheets of drawings illustrating practical embodiments of the invention, and in which:

Fig. 1 is a fragmentary plan view of the dial plate or turntable of the apparatus;

Fig. 2 is a longitudinal sectional view taken along the lines 2-2 and in the direction of the arrows as indicated in Fig. 1;

Figs. 3 and 4 are fragmentary transverse sec tional views taken respectively along the lines 3-3 and 4-4 and in the direction of the arrows as also indicated in Fig. 1;

Fig. 5 shows in elevation and plan the several parts of the nut assembly which are to be staked by the present apparatus;

Fig. 6 is a sectional plan view taken along the lines 6-6 and in the direction of the arrows as indicated in Fig. 2;

Fig. '7 is a fragmentary sectional view taken through a portion of a dial mechanism forming a part of a machine which is intended to sequentially receive the successive parts of the nut assembly;

Fig. 8 is a view similar to Fig. 7 and showing the washer element in position within the shell of the nut unit;

Fig. 9 illustrates the body of the nut in posi- I tionupon the fiber washer; and 1 Fig. 10 is again a transverse sectional view' of the parts as shown in Figs. 7 to 9 inclusive, but additionally illustrating the mechanism whereby a predetermined and desired relationship of these parts is established.

With primary reference to Fig. 5, it will b As will be noted, the well portion I6 is preferably of non-circular configuration. A washer ll! of similar configuration is provided. This washer is preferably formed of fiber or similar material. The washer or disc iscentrally apertured as at 20; the inner face of this bore be ing unthreaded.

Still with reference to Fig. 5, a nut 2| is also provided. This nut has its bore threaded as at 22. It also has an external configuration preferably corresponding to the inner configuration of the well portion Hi. The edges of the nut are formed with grooves 23,v the base portions of which may be arcuate or substantially straight as desired.

As disclosed in the prior Summers application, the disc or washer I9 is disposed within the shell l5 and adjacent the base of the well portion. In turn disposed to overlie the washer is the nut 2 l The purpose of the present apparatus is that of establishing a proper position and relationship of these several parts and in staking the assembly so that subsequent movements of one part with respect to the other is prevented. This will result in the production of a unit which is compact and These are conveniently apertured to ready for use. At will be hereinafter apparent, the parts may be automatically assembled in the machine or else assembled prior to association therewith; a machine constructed in accordance with the present invention serving to properly dispose the parts of the assembly and secure them against movement. In the interest of simplicity of design, .itisa-inncertain respectssprefrreditoa group the-parts of the=--nut assemblies prior to:- their association in the machine.

Thus referring to Fig. 1, it will be seen that;: the numeral 24 indicates a dial. This.is.rotat-. ably supported as, for example, at 25above a bed plate 26 as shown in Fig. 2:v ThBidiaI'FZAriSJ-JHE I levers will be contacted thereby and separated. This will force the opposite ends of the levers inwardly. Such action will have the result of projecting the jaws or punches 34.

Aswill be appreciated, the jaws of these punch portions will be curved if an arcuate indentation is to be formed in the shell I5 (and if the groove niofithe nut. iszarcuate inzsh'ape) Ifjthatgroove is of another configurationr then the jaw portion of the punches will be correspondingly modified.

A plate 44 is disposed to overlie this entire assembly... Theplate has an opening of a configuration corresponding to the outline of the shell l5.

Thisippening iszaligned. with respect to the recess termittently rotated or indexedsanound'ltsrcentenr m i e t f w in conjunction t t point. This may be achieved by any desired type of drive. Likewise, by means of. a=suitable.drivei a head 2'! as especially shown in Figs. 2and 3 is caused to reciprocate. The projection ,zot-thisi restflof: the dial; It 'is-son'1y; -W-hen.-' the formenis retracted to a position removed from cooperation-z with the units: associated-with thewdial that-the latter is indexed-pr advanced;

jaws 342* Tlie pla'teis moreover formed with an opening.,45 in-linewith the opening 42. Therefore, the wedge 28 may be brought to a position between the adjacent ends of the operating levers. head is timed to occur-during the interv l of 20 Also, the upper plate permits the shell to be supported .:uporr :the ablock-i 36.5while t-framed 'iby: the opening, in-zitsizbodyz 7 As ;W-ill-. bexunderstood; ;.the cnutzvassemblies includin the; fiber :w-ashers .sandtnuts HJJ disposed;

Now with reference to the detailed structure fu 2&'',0I18,Z,Wil7hil1 each ofetheeplate openings:v andrwell f the head, 21 it :will:be=se.en as-aespeciallyishowrr-"in Figs. 2;;anda3 thatztherlatter includes awbodyy mounting'an actuating wedgeane This :bodyalsoe mounts a'plunger-ZS which maybe-identified assay in advanceof the'headc zlzp Aszthey'reach'p-osi ticns adjacent thes-lattenathe tampingz-plunger. 29-.willdescend; Accordingly; thESDI'iHErPI'GSSrQd pin. 3 I will: engage the adjacent surface of-iithe't tamping member. The latte is provided witha aeao g nut, dyforcevthe.:latterragainsttthenwasher;

contacting,;portion.30 having ;a:configuration corresponding toathe configuration of the upper .face-e of the shell I5. A spring-pressedrpin -31 ofana area in: excessof: that ofrlthesborez-fl off theenut The :washer will in turntbe :somewhat. compressed :1 and forced against-attic basez'of. the shell; An .assurance of .the proper:dispositiorr ofthe several parts will be had in that thefoot portfon13fl of the 2| is carried by theplungere'zil. lnilinewithithei-ggi lunger moves tora.positiontactuallyzbelow the wedge element- 28 i and-at the (station: beyondthat at :whichrplungen 2.9:operates; the headsupports asspringr-pressed' plungerr32: The/flatter. has far. contact or foot-- portiom 33 h substantiallycorree. A

surface of the upper plate 44 andiwithin': the

opening: definingthe'sh'ell.

Uporrthe ascent oraretra'ctionrof the'head 211 the dialiisxiridexed tortheznextistationr... At that. sta- Spon ng to the .pontionrfl'ofip unger r29 Plunger: rion and witlrthe pnojectiomof; thethead,ithe-foot 32', w-hen unrestrained, isnormally:projecteditoi a position: materia1ly;beyond: the afoot portion:.v3llroii:; plungemZS: Inzzretracte'd"position; it; extends; n; theiisamesplaneaasafoot sportiom 311i As';:wili E e? seerrw-ith; particular reference to Fig-11;. th'eldialsz apair. of! opposedestakinga'j aws orispunchesz34'aare 5 sl-idablyi'mounted inixblock-tfifizn The. latter. pro-a. vide in aggregate a recess 31 to reeeivetthe. well: portion: it of the shell; The jaws on punches 34 are preferably spring :retractedn. To: this :end; a-=

The headafhass; 5'0

portion: :33 5 of :the aplunger. 32 :-engages and bears Withdncreasing' pressureeagainst :the 5 face of :the

assembly. At theamomentrwhenithislpressure is adequate ato assure eagainstaany' .possibility'of displacement, the-wedge ZBtengages the levers and 11 causes the .latter to be swung so that thestaking punches '34'are pr0j8cted: In: such projection the material of the shell Williibfi forced into the groloves;23 of the nuts. Accordingly; allv parts of the. latterassemblyrwill be locked against displacement;

Nowwith a. .viewrto providing *2. mechanism which will; deliver the assemblyurom the dial plate, it will be observed as especially shown in I Fig; 2. thatplungersr-4t"aretslidably carried, one by.;eachioffthe units of the'dialx. The upper surfaces-10f these. plungersxt havesanii area in excess of ithe bore of the shell or disc-|9r Secured to the bed plate-26 of the machineeis a cam member spring bow 38:may.=beemployed'whichds securedd eflis The "latter isrdisposedin: the path of movesuch: a position; Theiblock: 36':acts. ias'ia: stop tolimit the inward.movementszof theselevers: The opening; 42 in-the plate "43: :is :so: disposed-thatit 1' will; accommodate. the. .wedge 128:: Accordingly; as 1 ment of the lower ends ofthe plungers 46','and theyrareiofxarlength such that when engaging-the ca-mzthey will project; :above the face of the 'dial. Accordingly, andi'as shownespeciall'y in Fig; 2, the plungers will expell the shell assemblies'fr'om the wellf; portions of "the dial: and after th'estaking operation haszbeen'completedx V The assemblies willibe maintained in this-expelledxposit'ion runtil'-as the dial continues" to intermittently rotate-'-they movetoposit-ions adjacent:- a' tangentially'extending guide 48.- In turn disposed in line" with the-latter 2L chute 453i maybe provided. It is obvious'that as thedial rotates, and with the nut assemblies" elevated,

ther-latternise projected; the: adj acent LelldS aoiythei the latter willbedisplaced sideways-over the dial and finally delivered through the chute 49 or its equivalent. Thereafter, the plungers 45 move beyond the eam l'l, whereupon they assume their fully retracted positions. Under certain conditions, it might'be. desired instead of assembling the parts of the nut unit prior to their association with this machine, they might be assembled within the machine and prior to the operations just described.

If such a result is to obtain, it is apparent that as shown in Fig. 'l-the shell might be delivered in any desired manner to the upper face of the; dial plate and so that the well portion l6 of theformer would be disposed in one of the. corre-. sponding portions .!Of. the latter. Thereupon, as shown in Fig. 8 a washer element l9 could be disposed within the shell. Subsequently and as illustrated in Fig. 9, a nut 2| could be positioned within the shell and upon the washer or disc l9. Following such a disposal of the parts, the tamping plunger 29 would operate in the manner heretofore described to assure a disposition of the washer and nut not alone proper with respect to each other but also with respect to the shell. Beyond this station the staking operation would occur.

From the foregoing, it will be appreciated that a mechanism is provided which, among others, will accomplish the objects specifically set forth in the preamble to this specification. It is also obvious that numerous changes in construction and rearrangements of the parts might be resorted to without departing from the spirit of the invention as defined by the claims.

I claim:

1. In an apparatus of the character described, a dial presenting recesses to receive shells which are in turn to receive nut elements formed with grooves in their side walls, and staking means slidably supported with respect to said dial and adjacent said recesses to cause the material of said shells to be projected into the grooves of said nuts.

2. In an apparatus of the character described, a dial presenting recesses to receive shells which are in turn to receive nut elements, and staking means slidably supported with respect to said dial and adjacent said recesses to cause the material of said shells to be projected into locking contact with said nut elements, and means for maintaining said elements in proper positions with respect to said shells.

3. An apparatus of the character described including in combination a dial formed with re cesses to receive shells and means for deforming portions of said shells, a head cooperative with said dial, a tamping member mounted by said head, and a clamping element also mounted by said head.

4. An apparatus of the character described including in combination a dial formed with recesses to receive shells and means for deforming portions of said shells, a head cooperative with said dial, a tamping member mounted by said head, a clamping element also mounted by said head, and a, spring for normally projecting said clamping element.

5. An apparatus of the character described ineluding in combination a dial formed with recesses to receive shells and means for deforming portions of said shells, a head cooperative with said dial, a tamping member mounted by said head, a clamping element also mounted by said head, and a spring-pressed plunger mounted by said tamping member and normally projecting said plunger in the direction of said dial.

6. An apparatus of the character described including in combination a dial formed with recesses to receive shells and means for deforming portions of said shells, a head cooperative with said dial, a tampingmember mounted by said head, a clamping element also mounted by said head, and means also carried by said head for operating the deforming means of said dial.

. 7. An apparatus of the character described including in combination a dial formed with recesses to receive shells, means for deforming portions of said shells, and shell-projecting means, a

,head cooperative with said dial, a tamping member mounted by said head, and a clamping element also mounted by said head.

8. A staking assembly including a block formed with a shell-receiving recess and with guiding grooves extending toward said recess, staking jaws slidably mounted within said grooves, and means for projecting said jaws.

9. A staking assembly including a blockformed with a shell-receiving recess and with guiding grooves extending toward said recess, staking jaws slidably mounted within said grooves, means for projecting said jaws, and resilient means for retracting said jaws.

10. A staking assembly including a body, arms pivotally mounted by said body, jaws slidably supported by said body and cooperable with said arms to be projected as the latter are rocked, and said body being formed with an opening to receive a wedge-shaped element between said arms to rotate the latter.

11. An apparatus of the class described including, in combination, a dial plate formed with a recess to receive a shell, staking means carried by said dial and cooperable with said shell, means for rotatably supporting said dial, and a shellexpelling plunger mounted by said dial and'underlying said shell.

12. An apparatus of the class described including, in combination, a dial plate formed with a recess to receive a shell, staking means carried by said dial and cooperable with said shell, means for rotatably supporting said dial, a shellexpelling plunger mounted by said dial and underlying said shell, and cam means cooperative with said plunger for operating the latter as said dial rotates.

13. An apparatus of the class described including, in combination, a dial plate formed with a recess to receive a shell, staking means carried by said dial and cooperable with said shell, means for rotatably supporting said dial, said shell and dial being adapted to receive a washer upon subsequent rotation of said dial, and said shell and washer being adapted to receive and support a nut upon a still further rotation of said dial occurring.

14. An apparatus of the class described including, in combination, a dial plate formed with a recess to receive a shell, staking means carried by said dial and cooperable with said shell, means for rotatably supporting said dial, said shell and dial being adapted to receive a washer upon subsequent rotation of said dial, said shell and washer being adapted to receive and support a nut upon a still further rotation of said dial occurring, means forming a part of said apparatus for tamping said nut and washer into predeterwith said shell, and means for thereupon staking z zsaiess saidi shell-.5 into: ldckingengagement with said nut.

15.5vAnxapparatus 01' the class described incluciling, in combinatien; a "dial-"plate formed 'with a recess to receive a' shelf," stakingmeans carried" by said dial and cooperabl'e with" said shell, means for rotatably' supporting-said dial, said shell and.

dial beingadapted to 'receivea -washerupon subsequent rotation of saiddia1 ,"said=shel1 and wash-' er being adapted'to recei've and'support anut upon astill further-rota.tion-of-"said"dial occurring, means'iorming a part bfsaid apparatus for" camping said nut and washer into predetermined positions with respectto each other'and withsaid shell, meansfor*thereuponstaking said shell into lockingengagementwith said nut; means formaint imng:the:esvabflshedipusmonswrfsam sh'ell," nut and washer dun-mg the staldng 'there of, and means fr thereupomexpellih'glsaid'shelfi nut and washer fzdm said dfal re e555"