US1244803A - Metal-forging machine. - Google Patents

Description

' C. F. WALP & A. F. OLEA RY.

METAL FORGING MACHINE APPLICATION FILED MN. 15. I916.

Zeary v M I IIl l ll [n vcraara Ukarlarl'WzZp Patented Oct. 30, 1917.

3 SHEETS-SHEET 2- Arlfiurfifl UNITED s'rATEs PATENT OFFICE.

CHARLES F. WALPAND ARTHUR F. OLEARY, OF BERWIGK, PENNSYLVANIA, ASSIGN- OBS TO AMERICAN CAR, AND FOUNDRY COMPANY, OF ST. .LOUIS, MISSOURI, A COR- PORATION OF NEW JERSEY.

METAL-FORGING MACHINE.

To-aZZ whom it may concern R Be it known that we, CHARLES F. WALP and ARTHUR F. OLEABY, residing at Berwick, Pennsylvania, and bein citizens of the United States, have invente certain new and useful Improvements in Metal-Forgin Machines, of which the following is a fulg clear, and exact descri tion, such as will enable others skilled in t e art to which it appertains to make and to usethe same, reference beinghad to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not. limited to the exact press showing mounted thereupon in plan,

section being taken on the line 4-H of Fig. 1

a rotatable die socket and associated parts hereinafter more fully described; the view being taken on the line 11 of Fig. 2.

F ig. 2 is a central vertical sectional view taken through the upper and lower platens of a hydraulic press, throughihe parts shown in plan in Fig. 1, and through the associated parts which in operation are attached to the upper or fixed platen of the ress. p Fig. 3 is a half inverted plan view of arts attached tothe fixed platen, showing in section certain other parts the line 1--1 of said Fig. 2. i

Fig. 4: is a vertical sectional tview; the

1, looking in the direction indicated by the arrow. i

Fig. 5 is a fragmentary detai sectional view hereinafter referred to.

The object of the invention is to provide means for forging tubular bodies; for cool-:

in the dies and associated parts (if the machine and efor ejecting the forge d metal from such dies. 1 i

In the general scheme of operation a se- Specification of Letters Patent. Patented Oct, 30 1917. Application filed January 15, 1916. Serial No. 72,270.

from the machine and permit coolin the empty female die and the male die whi 1- t1 3 former is moved progressively toward its materlal receiving position.

In carrying out such'scheme, the parts are associated with-a platen" press, preferably of the type in which the upper platen is fixed, and the lower laten is movable upwardly toward such xed platen, the fixed I forging machine parts being secured in position to such platens and the movable Darts ofthe forging machine being movable relatively to such so-called fixed parts.

As presses of the type required are serviceable in connection with may pressing operations upon various types of work, the press forms no part of the present invention and only the parts essential to an understanding of the invention are herewith illustrated.

Clamped to the movable platen A of said press by ordinary service clamps B is a stationary base member C which is provided with a perimetrical flange 1, circular in form. This base member is preferably formed from a hollow casting, cored out at I), at convenient intervals to secure lightness, as indicated by the dotted lines in Figs, 1, 2 and 4.

-The central portion of the base is adapted to receive a pivot pin 4 which is secured in position by means of the machine screw 5 at its lower end, and the washer 6 and nut 7 at its upper end, the nut and washer connecting with the base a rotatable die socket ball races for friction reducing balls 11 adapted to run in said trackways and on which balls is rotatably supported the socket 8 before referred to.

As will be noted in Fi 24, the base member is additionally cored? out at K thereby forming a conduit through any one of the female die members 9 in register with said opening K and the interior of the base member through which may pass a tem porary die member 13, illustrated in Figs. 2 and 4 and occupying the lowermost portion of said die members.

,project machine screws or other suitable.

' The female die members 9 are provided with a central opening extended therethrough, and in such die members are placed the removable die members 13 to form telnporary bottom portions for such female die members.

, Connected with the die socket in c onvenient juxtaposition to the t'emaledie members 9 are stationary stripper members 15 provided with basetlanges 16 through which securing means 17 adapted to secure said stationary stripper members in position and.

incidentally. said stationary stripper members overlie sutlieient portions of the Female die members to lock the latter in position in the die socket. v

The upper portion 9 of the female die members 9 is provided with a recess of larger diameter than the through bore of said die members and in the piercing opera- 131011 hereinafter referred to. a temporary or removable stripper TS is seated in said recesses ll, as shown in Figs. 1 and). after the billet 20 has'becn inserted,

It will he noted in Fig. 3 that the central opening in the removable stripper 18 is wider atthe upper than at the lower side.

thereby forming a guide for the piereers 22 hereinafter referred to.

' Extending laterally from the base membar. isa hollow postflfi-which extends. as

shown in Fig. 2, from the movable platen to the section line l---! of said Fig. 2. The post 25 is hollow and serves as a guide and receptacle for a guide pin 26 which depends a from the fixed platen of the press and is positioned in a suitable pin socket 27. The pin 26 may be held in position by any suitable mcans not at all important: to the present invention.

For convenience of description; the female dies shown in plan in Fig. l. have been lettered F. (i, ll and l. and will be hereinafter referred to in. connection with such lettering.

(onnccted with the lived platen of the press by service clamps ll is a fixed collar supporting member 40 to. which IS rigidly secured a fixed collar 11 having an inwardly connected supporting tlangc l2 provided with a ball race. for the friction-reheated billet. js'plaecd therein.

or male dies adapted to cooperate with guide po t- .25.

ice clamps B and ejectthrough the bottom of said die H,

the billet which has just previously been pierced in die G and also the temporary die 13 before indicated, said billet and temporary die passing through the conduit. K in the base from which it may be removed due to the fact that the shell or outer wall of said base is broken away as shown in Figs. 1 and 4.

In operation it is essential that the die parts beproperly positioned andbe cooled after they have performed their function as forging members. and to that end, the means employed for carrying both sets of die parts are made rotatable, the die socket 8 rotating on the pivot pin 4 and the. rotatable collar Jrearrying the male dies being rotatable on the fixed collar 41 so that either or both the male and female dies may be properlyeooled between working intervals. To ac; complish this permits a greater output; from the machine and results in the economy of manufacture due to the long life of the die parts. t 1 In practice the successive steps are as f0lon's: i

Referring to Fig. 1, the die F having or rived at the position shown in said fi r0, empty and cooled as hereinafter descrlbed, one of the temporary dics.13 is dropped'to position in said die, after which a suitabl" The late 49 is released, the die F is moved sition occupied by die G and in this position the temporary stripper 18 is inserted extothe po tending, as shown in said Fig. 1, underne'iith upper flange of the stat the ram 51 or anysmtable actuating means ah'd the platens m brought into closer relation thereby forcing the male die into theheated billet and performing the pressing operation, the parts assuming the position shown in Fig. 2 in which it will be noted that; one of thoracic dies haspasscd through both stationary. and temporary portions of the stripper and into the billet which latter rests upon thctemporary die ltlwhich member in turn rests ionary stripper member 15, w creupon the press is operated by means 0 upon a fixed dieblock 5'5'set into the upper;-

face of the base member C.

l pon the return stroke of the press the male die is withdrawn from the billet and the parts (:Hlittl by the movable platen are movable to the lowered by thealotted lines in said Fig-QlHWhiCh the guid pin it; is withdrawn from the hollow The male die 22 is withposition indicated finishing the piercing operation.

- position indicated at F.

drawn from the billet and from thestrippers What we claim is: and the ejector 51 occupies a position remote 1. In combination in a forging machine, a from the die in alinement therewith, thus stationary support, a stationary die block set into a recess therein, a central pivot, a The next step is to advance the die from multiple die socket member rotatable on said position G to the osition H which brings pivot, a plurality of female'dies open at their the pierced billet into alincment with the tops and bottoms set in said die socket memejector 51. Assuming that another billet her and locking means adapted to secure said has been inserted indie I which at this time female dies successively in position in regis- Would occupy the position originally occuter with said die block. pied by the die F, the next operation of the 2. In combination in a forging machine, a press would pierceabillet and ejeota pierced stationary support, a stationary die block billet, after which,the now empty die would and a rotatable member having die sockets advance from the position H contra clocksupported by said support and tubular fewise to a position which will bring the die male dies in said sockets adapted to succesinto alinement with the opening 56 through sively register with said die block. the shell of the base member- Immcdiately, 3. In combination in a forging machine, a however, after the pierced shell is ejected base member, a fixed die block positioned from the die, suitable cooling fluid is placed thereon, a plural die socket member rotataby any convenient means in the latest empbly mounted on the base member, tubular tied die. Such cooling fluid may escape dies in said die socket member and a pivot slowly in the passage of the die from the poon which the die socket member can rotate s'ition H to the orifice 56 meanwhile performto carry the several dies into register with ing its cooling function, but when any of the said die block. 7

dies have moved into' coincidence with said 4. In combination in a forging machine, a orifice 56 such cooling fluid as may remain base member, a fixed die block, a rotatable therein flows rapidly from the die through plurality of tubular female dies, a temposuch orifice but as the die is still quite hot rary die member adapted for insertion in its interior is dried. sufliciently in the passage 1 said female dies and means adapted to percontra clockwise from the orifice 56 to the mit said temporary die member to pass from said female dies.

The filling, piercing, ejecting and cooling 5. In combination'in a forging machine, a operations may be carried on practically rotatable plurality of male dies and female continuously duringthe operation of themadies, guiding and locking means therefor chine and any number of dies maybe emand a fixed die block rigidly supported in ployed though for convenience of illustraalinement with one of said female dies.

tion four are shown. 7 6. In combination in a forging machine, a

The object of rotating the male dies is to base provided with a conduit and a fixed insure proper cooling and such dies are ad die block, a rotatable die socket member vanced step by step within the convenience mounted on said suppo and a plurality of of the operator and any number of such dies in said die socket member arranged to male dies may be employed though it is desuccessively register with the-die block and sirable to employ a plurality of such dies so said conduit. that each die may be held a sufficient time in 7. In combination in a forging machine, a portable cooling bath after it has permale and female, dies, rotatable supports formed its function in connection with the therefor, one of said supports being proheated billet. vided with a pivot pin socket, a pivot pin For convenience of rotating die carrying and a hollow guide post and the other supcollar 45' lugs a are formed thereon into port comprising a rotatable collar adapted openings of which a-suitable tool or handle to carry t e male dies and a guide pin adaptmay be inserted to secure suflicient leverage ed to enetrate said post. to rotate said collar and likewise handles 2'; 8. n a piercing machine, a rotatable male project radially from the rotatable die die carrying member, a guide pin central socket for the same purpose. thereof, a plurality of male dies connected 'lhc'die socket is formed with a perimetriith Said member, a support comprising a 'cal flange (Z which is continuous except as holl w guide post adapted to cotiperate with shown at (2 said flange passing into a suit- Said pin, a conduit, a pivotal rotary female able rewss therefor formed at 25 in the (lie Soc et memberand a plurality of tubuguide post 25 and clamps B cooperate with 'lar. female dies in said die socket member other portions of said flange to prevent exadapted to successively register with said cessive rocking motion of the die socket dur- C uit. I

ing operationlof the machine. The said III a p g machine, a t b e male flange d is cut away at e as indicated in die carrying member, a pluralitgv of imale Fig. 1 to permit clearing the guide post dies connected with said membn upport when the machine is to be dismounted. comprising a conduit, a pivotal rotary female die socket member and a plurality of supports.

11. In a forging machine, opposing platens one of which is movable, supports fixedly s'ecuredto said platens one of which supports is provided with a die block and a fluid conduit, a rotatable collar carried by the other support carrying a plurality of male dies; a rotatable die socket member carried by the first mentioned support and a plurallty of female dies in said socket member adapted to succemivel Y register with said 1 die block and said conduit.

platen,

12; In a forging machine in combination,

a platen, another platen movable relatively thereto, a support fixedly attached to each cooperating guide members extendgamete ing from said supports, a female die carrying member rotatable on one of. said supports, means'for locking said die carrying member in position, a rotatable malefdie support carried by the other support, m'ale dies retained thereby and open bottom female dies in said'female die, carrier.

13; In combination in a for ing machine, a platen, another platenrelatively movable thereto, a base member on one of said platens, a circular trackwayr thereon, a rotatable die holding member having a circular trackway secured thereto, friction reducing means intermediate said trackways, a plurality of female dies in said die-holding member, a rotatable male die carrying member connected with the other of said platens and male dies carried thereby. r

In witness whereof We have hereunto set our hands in the presence of two witnesses.

CHARLES F. WALP. ARTHUR F. OLEARY.

'Witnesses FRED A; HOFFMAN,

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