US2381559A - Swaging machine - Google Patents

Description

J. M. Roo'r,

SWAGING MACHINE Filed March ZO, 1944 3 Sheets-Sheet 1 IJYVENTOR. JOSEPH MQROOT ATTORN EY$ farts adjusted for operation: 1

. ti l i iieb ATE OFF "SWAGING MACHINE .j iJo seph'M. Root, Detroit, Mich., assignor to Harold .pC. Johns, Virginia Johns, Walter" E. Davison,

, and Leona Davison, eopartners, doing as Park Manufacturing Company,

The invention relates'to swaging machines and more 'p'articularly to 'machinesfor reducing the diameter of members of 'circular cross section. V a specific instance, a socket member havin an insert therein may beswaged'to-contract the socket 'upon' the insert thereby "securing-these members to each other, j"

I-tis the object of the-invention to obtain a construction with which successive pieces" of work may be easily inserted andwithdra'wn and which rapidly performs thev swa'ging operation thereup o To this end the-invention consists in'the' con struction as hereinafter set forth.

'In the drawings'z h i Fig, 1 isfa'side elevation of'themachine; Fig." 2 isa horizontal sec'tion online 2-2, E s- ;Z' j" 1 'Fig.3isafront elevation; I c v Fig, 4 is a, similar view with the front closure ,f '7, is a View similar to H Fig. 2 showing. the

"geeemn u e' eer a sectional elevation showi g a socket .Figill I placedjtherein; and

ebh'pthe ian i a t n f a .gAsfshowngin FigQ 1, A'is a suitableframe having a horizontally e'xtending, 'race 'member or bearmg a'tthe upp r end. thereof for receiving a rotary emberci A motoriDismountedon the base Qfthe frame and e uneyand' beltdriV'e con neEtiOn E" cbnnects the'metcr with the rotar el arts in er gggeme nt with members; At the opposite end of the bearing B I is'an enlarged circular recess B for receiving a head 'C".on the rotary member C. This head has a; forward xprtion'C ofsmall'er' diameter leaving between thesai'n'e' and the wallet the recess B annular cage member G in which said rollers aremounted. "The forward-portion C of the head C is transversely slotted to form parallel for the-axialengagementof the rollers F therewith. After the rollers F are assembled withthe an annular'space for're'c'eiving a series'of'rollers.

and'an' business Detroit,

i 'Application Mai-ch 20, 1944, Serial No. 527,313 e Claims. (01. 78-21 .then closed by a ring bearing cage memberG by screws G I dogs J. These dogs are adapted to couple the cage rotary member G with the member C and to this end the latter member is provided with anannular member K secured to the outer end of the portion C by screws K. member K has radially projecting segments K forming shoulders K in the path of the dogs J inone position'of the latter, while in another position said dogs will clear said shoulders. At the front of the bearing B is a removable closure L. Breferably the mounting for the closure L comprises lugs L projecting outward from the member B, and arms L extending oppositely from said member L and. having bifurcated portions L straddling said lugs L and having connecting pins L Thus, by removing one of said pins L the closure L maybe swung outward on the other pin forming a hinge so as to clear the recess B. The closure L is formed with a central inwardly tapering opening L through which the work may be introduced into operative relationto the swaging die blocks H. ,The closure L is also provided with annular bearing members L and L the former being within the annular member K and fastened by screws L to the closure Land the latter being attached to the closure at the outer end of the cage member G; Surrounding theclosure L is an axially adjustable ring M for engaging the outerends of the dogs J to actuate the same. This rin M is secured to the closure L by pins M projecting inward from the-ring and engaging inclined slots M in the closure L so that a slight rotary adjustment of the ring will cause a simultaneous axial movement thereof. A handle M rojecting radially from the ring M forms a means for adjusting the same. Each of the dogs J has mounted on its outer end portion a wheel or roller J which forms an antifriction bearing on the inner'face of the ring M. The wheels J are yieldablypressed against said ring by plungers J and springs J engaging bores in the cage mem ber G. The outer ends of these plungers J engage-the outer end portions of the dogs J. Thus,

c'ag'e member G, theinner ends of the pockets are when the ring, M is at the outer end of its axial movement, the springs J and plungers J will move the dogs J into the path of the shoulders K to couple the cage G with the rotary member 0. On the other hand, when the ring M is moved axially-inward, it will swingthe dogs J into a position to clear said shoulders K and thus uncouple the cage G from th rotary member C.

The annular Operation When the motor Dis energized, rotary motion will be imparted to the rotary member C and all the elements attached thereto. Assuming that the ring M is in a position to couple the cage 1 memberG to the portion C then this cage meme ber G and the rollers F therein will also revolve with the rotary member and at the same angular speed. Furthermore, centrifugal force de-,;.

veloped by the rotation of the swaging die blocks H and actuating hammer members I will move these parts radially outward sosas to separate the die blocks H from each' other for-the introduction of work therebetween, The ,amount of separation is increased by the engagement of the outer ends of the hammer members I with recesses I in the cage member G at substantially diametrically opposite points thereof, said 'recesses I being in registration with saidhammer members I when the dogs J are in contact with the shoulders K In this position of the parts, the work such as a socket member N surrounding an insert 0 is moved through the opening L in the closure L into the space between the die blocks I-I: There is also preferably provided a work holder P for properly centralizing and positioning the work. This holder, as shown in Fig. 2, comprises a socket member P slidable within a cylindrical member P which also contains a' spring P and has a closure cap-P All of these parts are inserted within an axial recess P in the member C(and the arrangement is such thata projecting end portion N of the work socket member N may be inserted within-the socket holder P and pressed inward againstthe tension of the spring P This arrangement will cause the socket member N to be positioned properly between the die blocks'H for theswaging, operation.

What I claim as my invention is:

1. In a swaging machine, a rotating member having a transversely extending guideway thereon, swaging members slidable on said guideway on the opposite sides of the axis of rotation and movable radially outward from said axis by centrifugal action to formtherebetween a space for receiving the-work, a 'surroundingrace member spaced from and concentric with said rotating member, an annular member in the space between said rotating member and race member provided with a series of spaced rounded inward projec- :tions, coupling means between said rotating member and annular member for causing the same torot'ateat thesame angular speed, and means operable during the rotation of said members for uncouplingsaid coupling means whereby said -annular; member will be frictionally retarded and rollers also'in said spacecoupling means between To accomplish the latter the-operator taking hold of the handle M rotates the ring M to-simultaneously move the same" axially thereby diserb' gaging the dogs J from the shoulders K This permits frictional resistance afforded by the engagement of the rollers'F with the race member or bearing B and the hammer members I to retard therotation of the cage Gto a slower angularspeed than that of the rotary member 0 so that the rollers F will successively impinge against the hammer members I to actuate the same radially inward. The hammer members I, in turn, will actuate the die blocks H which will deliver a succession of blows against the outer surface of the socket -N swagingthe same into bind ing contact withthe insert 0. The operation is sorapid that the swaging isaccomplished in ashort interval of time after which the ring M is returned by the handle M -to its normal position so that the dogs'J will be moved intothe path of the shoulders K to again couple the cage G with the rotary'member C. The completed work may then be removed, new work introduced and the operation repeated. v i

The work tobe swaged may vary in dimensions which necessitates changing ,the swaging die blocks I-I. This may be easily performed by removing one ofthe pins L and swinging the closure L outward to provide clearance forthe removal of the die blocks H and the insertion of exchange die blocks H. To avoid interference by the annular memberK, the latter is provided with notches K in its inner periphery which permit passagetherethroughof the corners of the die blocks H. J It is, therefore, possible to quickly exchange the blocks whenever there is a change in dimensions of the work to be swaged. i

said rotating member and c'age member for causing the same to rotate at the same angular speed, and means operable during the rotation of said members for uncoupling said coupling means whereby said rollers and cage will travel about said race member at an angular speed less than that of said rotating member, and said rollers will successively impinge upon said swaging members actuating the same radially inward to 'swage the work therebetween.

3.- In a swaging machine, a rotating member having a transverse slot-therein forming a guideway, swaging members slidableQin said guideway on opposite sides of the axis of rotation and movable radially outward from said axis by centrifugal action to form a spacetherebetween for the reception of" the work, a bearing in which said rotating member is journale'd having an enlarged recess forming a raceway surrounding and spaced'from said guideway, a series of rollers andfa cage therefor located in the space between said guideway and said raceway, coupling means between said rotating member and cage for causing the sameto rotate at the same angular speed, and means operable during the rotation of said membersjjfor uncoupling and coupling said coupling means whereby said cage when uncoupled and said rollers will travel around'said raceway at an angular speed les's'thanthat of said rotating member and said rollers will successively impinge upon said swaging. members actuating the same radially inward to swage the work therebetween I 4-. In a swaging machina a rotating'member having a transverse. slot therein forming a guideway, exchangeable die members, and actuating members thereforslidable in said guideway on opposite sides of the axis of rotation but movable radially outward from 's aid axis by centrifugal actionto form a space between said die members 'for receiving the work, :abearing in which said rotating member [is journaled having an enlarged recess forminga raceway surrounding and spaced from said guideway, a series of rollers and a cage therefor located in the space between said guideway and raceway, said cage having pockets between the rollers for engaging and limiting the outward movement of said aotuating members, dogs for coupling said rotating member and. cage member in the relative positions'thereof when said actuating members are engaged with said pockets thereby causing said members to rotate at thesame angular speed,

and means operable during therotation of said parts for moving said dogs out of coupling engagement whereby said rollers are permitted to travel about said raceway in rolling contact therewith at a speed less than that of said rotating member thereby causing said rollers, to successively impinge against said actuating mem-.

bers' to move said die members radially inward and to swagethe work therebetween.

5. In a swaging machine, a rotating member having a, transverse slot therein forming a guideway, swaging die members and actuating mem- I bers therefor in said guideway on the opposite sides of the axis of rotation and movable radially outward from said axis by centrifugal action to form therebetween a space'for receiving the work, a surrounding race member spaced from and concentric with said rotating member, a

series of rollers and a cage therefor in the space between said rotating member and race mem- 'ber, said cagev having pockets therein, between saidrollers for receiving and limiting the outward movement of said actuating members, dogs on said cage forengaging shoulders on said rotat ing member to effect a coupling engagement therebetween and to drive said cage at the same angular speed as said rotating member, a nonrotating member infront of said rotating members centrally apertured for the passage of the work therethrough, an annular member rotativelymounted on said non-rotatable member with a connection therebetween for causing an axial movement of said annular member upon rotative adjustment thereof, said annular member having I an antifriction bearing on said dogs whereby the axial movement thereof will disengage the coucentrifugal action to form between said die members a space for receiving the work, a bearing in which saidrotating member is journaled having an enlarged recess forming a raceway surrounding and'spaced from said guideway, a series of rollers, and a cage therefor located in the space between said rotating member and raceway, a centrally apertured closure for said recess removably connected to said bearing serving to normally retain said die members and actuating members against disengagement from said guideway but permitting exchange of diemembers when desired, dogs pivotally mounted on said race member for engaging shoulders on said r0- tating memberto cause both members to rotate at the same angular speed, means for yieldably holding said dogs in coupling position, an annular member rotatively adjustable on said closure member and provided with means for causing an axial movement upon rotative adjustment there- 'of, and roller bearingson said dogs forengaging said annular member whereby anaxial movement of the latter will disengage said dogs and 1 trifugal action to form therebetween a space for receiving the work, an annular member surrounding said rotating member and normally rotating therewith at the same speed, said annular member having a series of spaced inward projections, and means for retarding the rotation of said annular member to cause said inward projections to successively impinge on said swaging members and to move the same inward against the work.

8. In a swaging machine, a rotating member 3 having a transversely extending guideway therei on, swaging members slidable on said guideway pling permitting the rollers to travel around said raceway at an angular speed less than that of said rotatingmember thereby successively impinging upon said actuating members to move said die members radially inward and to swage the work therebetween, and meansfor automatically restoring said dogs to coupling position when said annular member is axially withdrawn therefrom.

' 6. In a swaging machine, a rotating member having a transverse slot therein forming a guideway, exchangeable swaging die members and;

actuating members therefor slidable in said guideway on opposite sides of the axis of rotation and movable radially outward from said axis by on the opposite sides of the axis of rotation and movable radially outward from said axis by centrifugal action to form therebetween a space for receiving the work, an annular member surrounding said rotating member having a series of spaced inward projections, coupling means between said rotating member and annular member for causing the same to rotate at the same angular speed, means operable during the rotation of said members for uncoupling said coupling means, and means for retarding the rotation of said annular member when uncoupled from said rotating member whereby, said inward projections successively impinge against said swaging members to move the same inward against the work.

JOSEPH M. ROOT.

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