US1063160A

US1063160A - Forming-machine.

Info

Publication number: US1063160A
Application number: US42059408A
Authority: US
Inventors: Bengt M W Hanson
Original assignee: Pratt and Whitney Co Inc
Current assignee: Pratt and Whitney Co Inc
Priority date: 1908-03-12
Filing date: 1908-03-12
Publication date: 1913-05-27
Anticipated expiration: 1930-05-27

Description

B. M. W. HANSON,

PORHHNG MACHINE.

ALlCATlN FILED MAR. 12, 1908. 1,063,160, Bamm May 27, 1913.

3 SHEETS-SHEET l.

B. M. W. HANSON. FORMNG MACHINE. APPLIUATION FILED MAR,12, 1908,

1,063, 1 60. Patented May 27, 1913.

l 3 SEEETSSHHET2` Fig 5,

fut) B. M. W. HANSON. PORMING MACHINE.

APPLIGATIUN ILLL MAR` 19ml4 1,063,160.

Patented May 2T, 1913` UNL n l) Afff'lilllS IYATENI] OFFICE.

BENGT M. Vl. HABVSONA OF HARTFORD, CONNECTICUT. ASSIGNR TO PRATT & WHIT- NEY COMPANY. 0F HARTFORD. CNNBCTICUT. A CORPORATION 0F NEW JERSEY.

IORMING-MACHINE.

1l Anm. i no.

Specification of Letters Patent.

Pat ont ed M ay 27,191 3.

Application tiled March 127 198. Serial No. 420,594.

lw it known tlmt l. lbxerr M. W. IiANsoN. Y lMii-joui Ll) llit ltiligl iii HWML lnl il rosidvnt ift llnrll'ord. in illu county of llzu'ttord mid Stun .if tlnniwxl'nrnt` antw in\' .ntoll :i non and imprsfwil lloimiugflzn-liino. ol wlxn'li llnl following' is n spwilimilion.

Mv invention :rinus to tim wlnss ot man cliinis for giving slnipo or forni to nrtivlos by :i vulling; opflizilion in 1li@y provoss ot nmoutnoture, ond tlm olijwt ot' my mwen tion is: lo provid:i machine ot this ('lnss tlwt wlxilo wpinly nsnllo for otlivr purposes. man lm f nliilv und gulf-lily adapted to tlic for'xnniion ol' :iftsil'V l5: my improved nomini :1nd o furti objet-t of tlio invention is lo provide novl :uid improved movilanisni tor toi-ming ni'tiilos, which mecln1- nisin muy in, readily und quiilily applied to mnrliinv; tripled lor other purposes; and

further olijwt of tlio invention is to pro- 'gilda n10-.ins for varying tlnl dirovtion ot forming ii.1m'v1n-'.iit ot' tin parts to umso the uttin-,z toni lo prodnoe nu nrtifle of prede iernainod .siiripfw zin-:l n further olajcft ot' the invention lo pmido n. pattern the form of wliioli s'lnxli govern tln forming movemunt, ol' llnYA parts to muso the Hitting tool to produlo :in nrtifli: ol prodetorlnin'od shape: :ind n still further object of lli@ mwntion is to provide in indexing :msi iolk ing imi 'i1z\i\ism ol oxtrmno simplicity in von` srruvtion und oinrfition; :ind n still l'mtlioi' olriovt ot tlnL invvntion is tiifproduction of on indcxinn :1nd loiking n'mclmnism in whit-l1 tno blank bonn; oporntwl upon muy 'no utilized as n pori ol suoli indexing and locking mmm.

Finns@ 'i is :i rif-w in ,sido olm'nlion of n mnlllinfi omliodying tlm invention.

Fifi. is n View on onlnrgod scolo showing :i portion of tlm hond of tlm mznliino und ilw moons for supporting :i blank or altii'lc with ro spout lhoroto. Fifi. f3 n doinil vivw slum" ing :i sogrinint ola tlm rim ol' :i g' ,illus tuning nw... wleifxli n' donn npon tho nwniiino, l" l if, n 1 *vivir ot tlm forum' or pntlfrn inno. 'liront vivir of tln' mnn. Fig; 6 is :i plein Non of tina norii or amish; esippmt und indffr; :nid

fr is, :i

l l l locking nnvlmnism. the slidingr lmso being omittoil. Fig.v T is a View in alovution of llmt ond ot' said moolmnism fnling tlio hond ol' tlm nnn'liino. and including' till@ sliding lmso. Fig. tn vien' showing` articles 0porzitvd upon by the lnncliinv und illustrating still l'urtlwr the character of the work which muy lin@ dono thereupon.

My invention is not limited to machines vonslrui'trd especially und solel)Y for mrrying it into etfect, but may lio embodied in suoli n lnucliiinA if desired. I lmw found a satis uctorv forni ot iiwclmiiism containing the invention so onstruttod tllfit it muy be readily und qnirkly attached to or detached from n n'nicliine usable tor other purposes, and sut-li a, niavliinv, is illustrated in tho drawings livr-tin. in which the numorul lt) donotvs n liaise having a volurnn or standard ll risingr tlwrvfroni, and upon the upper mid ol' wliivlilis located n head 12. An oil risvivoir 13 is supported on the standard. spindlex 14 is suitably mounted in the hond, this spindlo linringr a ('lmok l5 and n driving pnllov 1G. A tramo 17 is located on thoI head :md is provided with clamps i8. A knee guidil 1t) is formed on tlio front fzno of the volumn o1' stondnrd "l1, this guido being of dovtuil sluipt;` in 'Voss-swtion to tit :i rovoss ol' vorrospondin;vr shop@ in tlio base of tln` linoo 2U. linnn opornting shaft Q1 is suitably monntld in the standard and so connected to tlio knot tlmt tlio lutter may lio tod dongP tlm stzmdzard :is by moans of tln oplrziting linndlo 22. Vll ol' tln parts thus tnx' spur-itivnllv dost-rilwd :1ro ot known cmistrnvtion :ind t'mtinr :ind domilofl description is doOmwl unnol'ossnnv lnroin, :is tlio t'onstrur'tion :ind oporzition will l e rozidily iunior-stood lrv llloso skilled in llio nrt.

'liilo my invl-nlion ,is philly zlpplirnlnlo to tlio fornmlion ol' ortit'rlos o-t' nido and 'sfuving kimlfs. slniins :unl sizes. it iS @spo vinlly nppln-:llxlo for uso in pointing goin' tooth. und ospt-winlly tooth of suoli gears :is :iro usod in tlm transmission.moclmnism of :'iutomoliilos. ond suoli :in :irtiolo lms tliercforo boon slllwtod ini nn for lln purpose ol disrlosmoot llw im vntion iwi-vin.

inev lmso .23 miri'iis i slop rod support Ll projet-ting :dong ilio sid(- ol' the standard '11. A stop roll L socurod to llw support 24 Carries Stops '2li ndjustaliljv mounted upon t-lie stop rod. En so stops urn located upon base toward the head 12.

cpposite sides of a stop rod guide 2T and cw operate therewith to limit the nmvement ot tlu knee 2U. A\ `crew threaded adjusting sleeve provides means of adjustment for the. rod 2f with respect to the .support fl. PIl..Y rod 'i has a groove ll tapering to a narrower u idth at the bottom. and set screws lo passing through the stops itt project into this groove and serve to hohl the stops in position on the rod.

An arm 31 is supported in the frame 1T. this arm having on one end a curved support: 32 adapted for use in connection with certain work to which the` machine i adapted other than that for which the machine as illustrated herein is arranged. the suport 32 in such instances being located adjacent to the chuck 15. To adapt the arm for use in connection with my improved mechanism it is reversed end for end. as shown in Fig. 1. and a tool rest 325 is supported thereon, being adjnstably held in position as by nieanslof a clamp bolt itt. thtl rest being` Split. to enable the holt to clamp it in place. The arm 31 is adjustable longitudinally and is held in position as bv.

means of the clamps 1S. This tool rest 33 holds the tool rigidly up to its work and prevents springing action which would rcsult. in uneven and unsatisfactory work.

The cutting tool 35, as shown a milling tool with a. tapered end. is secured in the ehuck 15. The knee Q0 is provided with the usual dove-tail shaped projection 36 on which a sliding base 3T is mounted. A socket piece 38 is secured to the under side ofthe base 37, preferably removablyY secured thereto, and a phmger 39 is located in a socket 4t in the socket piece. A\ spring l0 is located in the socket 4l between the end of the plunger and th(` bottom of the socket. which spring when compressed forces the A screw l2 supported b v a plate 43 secured to a cross-har 44 extending between the `side parts ot' the knee Qt), is employed to place the spring l() under compression. A\ base stop l5. in the form of a screw supported in an car t6 projecting from the base. determines the extent of inward mowmcnt. ot the sliding base 37.

A Strike base 4i' is secured. preferably re movably, to the end of the sliding hase 3T. a' projection 48 affording means for removable attaclunent of a strike 4f). This strike is preferably made of hardened steel o'r other metal capable of withstanding wear. and its upper edge is rounded as at .'itl.

The Sliding base il? has a shouldered groove 51 in which the head of a stud 5:2 from a. fixture support .'13 is located. The support is thus adjustable along thi-'hase` a nut 54 in connection with this .stud `zrving to clamp the support in place. said support, together with the parts mounted thereon,

constituting a fixture that may be bodily removed from or attached to the machine atl will.

The upper end of the fixture .support Il has a socket for a blank or work support 5.3. ln a .satisfactory form of construction the inner end of this blank support is formed as a tapered I in fitting a tapered opening in a headed s eeve .3G located in a socket in the tixturc support 53. A retailiing screw .3T engages the inner end of the blank support to hold it in place. a -collar .3S aud a filling piece .'tl underlying the head ot' the locking screw. aiding the latter in holding the blank support and headed sleeve .36 in place.

pivotcd support (l0 has branches til formed at one end lying on opposite sides of the upper end of the fixture .support .33. These branches receive the Isleeve Siti upon which the support is pivoted. This support has downward proiecting .side parts in which slots (t2) are formed to receive a locking bolt (t2 located in a lug ttl on the fixture support 525. This locking bolt holds the support (St) in an v desired position. the side parts springing s||tliciently to permit clamping action between the parts.

A bracket (if) is adjustably held b v the support (10. as b v means of an interengaging tongue 66 and groove (1T. clamp bolts GS holding the bracket in place. .\n indexing plate 69 is adjustably mounted upon the bracket, as by an intermeshing tongue 70 and groove T1, the bracket being .splitl as at 7:2 to enable, the clamp screws` T3 to clamp tlhe. plate against movement on the bracket.

A projection 'Il is located on the vJule of the plate 69. this projection having a recess for a locking bolt T5. The end of the. locking holt is shaped to tit between the teeth of the gear blank being operated upon` a spring T6 forcing the bolt into engaging position with said blank. A, 5ere\v\77 prevents turning movement of the locking bolt, and a closure screw 78 closes the end of the sockety and also regulates the tension of the spring. lt will be understood thatthe end of the locking bolt may assume any form to properly engage the blank being operated upon to hold the latter against movement` A headed screw stud 79 has its inner end shouldered and threaded to provide means for secure attachment to the plate 69. A lever handle R0 is pvotallv mounted upon this stud and has a fi er 81 engaging a recess in the locking bdlg 75, the lever handle and finger being rigidly united, and n pawl supporting plate 92 isalso mounted upon the stud 79 to have a pivotal movement. in- Fependcntlvv of the lever handle 80. A pnwl S3 is pivoted upon the plate 82. a spring 84 holding the heel S5 of the pawl against the stop pin Sti. A suitable stop may be provided to limit the upward movement of the lever handle, in fthe form shown, however, the bolt striking the teeth in the gear forming such stop. A stop pin 87 adjustably mounted in the pawl supporting plate 'limits the downward swinging movement of the lever handle, `this pin striking against the projection 74. A ,recess 88 is formed in the edge of the pawl 'supporting-plate,'an adjusting `screw S9 projecting into this recess. A' pin 90 from the lever handle 80 extends into this recess.

By an examination of Fig. 7 of the drawings .it will be noted that the parts just described'are so'adjusted that the locking bolt A'('5 will engage the space between the gear teeth on a gear 91, and the pawl 83 will be located in position to thrust against one of said teeth when the lever handle 8() is operl ated.

The gear 91, the ends of the teeth 92 of which are to be pointed as illustrated at 93 in Fig. 3, is located upon and secured to the blank support 55, a nut- Ql holding the blank in place. In the form of blank shown one'of 'two gears located at opposite ends of a "sleeve" is beingy operated upon, it being noted by references to Fig. 2 that this may be easilyA accomplished, the tool heilig located over the smaller gear. A former or patternbase 95 is adjustably secured upon the knee guide 19, the base having a dovetailedshaped recess as shown in Fig. 4, to fit said guide. A gib 96 held in place bv bolts 97 clamps the base securely in position, this gib being of a shape to partially form the dove-tailed shaped recess. Ears 9S project from the base 95 and a former or pattern 99 A,is pivot-ally supporte-d upon a pivot 100 secured to the ears. An adjusting screw .10i extending through the former limits its. swinging ino-vement toward the base, and a vclamping screw 102 prevents swinging movement away from the base.

In Fig. 8 of the drawings'lhere is illustrated an article, as 'a hammer for a gun, which may be shaped and formed upon my improved machine. It will-Whe noted that these hammers 103 are supported in pairs so that. the cutting tool may operate simultaneously upon two oi said articles lieveling the edges as at 104.

lt will be noted that the machine is constructed so that in operation upon the teeth ol a gear two teeth are operated upon simultaneously so that in effect a tooth is tinished in each operation. The machine has in efl'ect two feeds, what may be termed a regular feed to bring the tool and the work into operative relation, and what may be termed a forming feed which embodies such relative movement of the blank and the tool, either or both, as determines the shape or form which shall be imparted' in the cutting operation.

The regular feed, in the form of device shown herein, is obtained by means of the handle 22, manually operated, but it is obvious that other means may be employed for imparting this feed. The forming feed is automatic and is governed and controlled bv the former or pattern 99. This former may have any desired shape to produce a given form in the article being operated upon.I the base 37 being held in contact with the former by means of the spring 40 as the blank is fed up to the work. The former thus determines the direction\of relative movement between the blank and cutting tool to cause the latter to shape the blank to a predetermined form, the former thus acting as a pattern to determine the shape which shall be given to the article.

lVhile mv invention is not limited to thf use of any special shape of cutting and forming tool, a milling tool having its end lbeveled or pointed, as herein shown` has spe. cial advantages in connection with the pointing ot gear teeth. The shape given tothe teeth is such as to provide the best results in the. operation of' the gears, not only enabling the gears to readily mesh without: strikingr but also giving to the teeth suchform that the gears will be engaged by an action somewhat resembling that between the teeth after they are engaged.

The machine, while usable for other purposes, is quickly and readily adapted for the purpose in hand, and the work may be very rapidlv performed thereon. l

While the locking and indexing mechanism as herein shown contemplates the use of the blank beingr operated upon as a part' E of said mechanism, thus reducing the same to a minimum-number of parts, when articles which can not bc put to such use are to be formed in the machine other means may be readily provided for indexing and locking.

In the operation of the device the fixture su )port and the work carried therclrv are adliusted to proper position `with respect-to the tool 35 by the various adjusting devices' operated in a well known manner, after which, in operating the indexing mechanism, the handle lever Stlis rocked, the tin-- ger 81 withdrawing the locking bolt 75. In this withdrawing operation the pin- 90 on the lever handle moves within the recess S8, thus imparting no movement to the pawl supporting platevand pawl until the bolt has been withdrawnl from engagement with its coperating parts. As soon as the bolt. has been withdrawn the pin 90 striking the adjusting screw 89 causes the pawl supporting plate and pawl to be' moved forward, feeding the blank forward. Upon releasing the handle the latter Swings to the position shown in Fig. 7, moving the locking bolt into position to lock the blank against movement. in the mechanism herein shown for losA operating upon the gear the pawl imparts a partial movement to the blank. suflirient to enable the bolt to enter the recess between the teeth. and the entrance of' the bolt acting upon a beveled surface ot'V a tooth mores the blank partially to tht` position to be oecupietl for operation by the cutting tool.

Yl claim:

1. machine including a column, a knee movable upon the column and a spindle for holding*r a enti ing tool. means for moving the knee. a sliding base movable upon the knee` .said base haring a .socketl pieeefa spring located within `said socket piece. a spring operated plunger extending within the socket piece to exert nressure upon the Sliding base, means for governing the tension of the spring. a fixture support mounted upon the .sliding base. means carried by the fixture. support for holdin;Ir a blank. and a former stu-ported h v said column and arranged to rant' and control'the direction of movement of' theshdmg base to deternune'the resultant .shape of said blank..

2, nu'ichine including a column. a knee mutable upon the column and a spindle for hrlding a cutting tool. means for movin;Ir the knee. aI .sliding base movable upon the knee.

.said base having a socket piece` a spring located within the socket piece. aplunger extending within the socket piece and seated against the spring. a screw located in said knee. `said screw thrusting against the end ot' said plunger. a fixture support mounted upon the sliding base. means carried by the fixture vsupport fonholdingr a blank. and a fermer supported b r said column Vand arranged to vary and control the direction ofv movement of' the sliding base to determine the resultant Shape of' said blank.

il. 4\ machine including a column. a knee movable upon the column and o spindle for holding' a cutting tmol. means for movingtlie knee. a .sliding bast` supperted on `said knee. means for exerting 4spring pressure upon Sau'l .sliding bage to more it touard .said eolumn. meanvt'or Vai-yin;r the tension of the Spring. a tixture support mounted upon the gliding, base. means carried by the fixture .the slidin supporty for holding a blank, and a former secured to said column and arranged to vary and control the direction of movement of the sliding base to determine the resultant shape of the blank.

4. machine including a knee and a spindle for holding a cutting tool, means for moving the knee, a sliding base Supported upon the knee, a fixture support carried by the `sliding base, means carried bythe fixture Support. for holding a blank, a bracket secured to the fixture support, an indexing mechanism attached to the fixture support, and means for iositioning said bracket with respect to the'blank carried by the fixture support. j

5. A `machine including a knee and a blank support, means for operating the knee. a sliding base mounted ont-he knee, afixture support mounted on thesliding base, a. bracket adjustably mounted on the fixture support, an indexing plate adjustabl mounted on the bracket` to support indexing mechanism. and a former arranged to vary and control the direction of movementof the sliding hase on the knee to deternnn-e the resultant shape of a blank.

6. A machine lnctudmg a knee, means for yoperating the knee, a sliding base mounted on the knee, a blank supportcarried by the, I

sliding base, a fixture supportmounted on base and adjustable thereon, a brackettatjustably `mounted on thefifixture support, an .indexing plate mounted "on said bracket and v)adjustable with respect to the blank support. and an indexing mechanism carried by said pla-te.

7. A cutting tool with means .for operating it, a .sliding base, means for feeding said base. a blank support carried bysaid base, a former base, a former pivotally mounted onV the former base and having its surface shaped to direct. the forming movement of the sliding hase, and means for adjusting said former on its pivot.

BENGT M. V. HAN'SON.

Vl'itnesses': y

` M. S'roRRs, v Amnin B. J ENKINS.