US1314636A - Forging apparatus - Google Patents

Description

J. C. CROMWELL.

FORGING APPARATUS.

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6 SHEETS-SHEET I latuted Sept INVENTOR WITNESSES J. C. CROMWELL.

FORGING APPARATUS. APPLICATION mw lun 28.1917.

Patented Sept. 2, 1919 6 SHEETS-SHEET 2.

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Patented Sept. 2, 1919,.

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J. C. CROMWELL.

FORGING APPARATUS. APPLICATION FILED JULY 28. I9I1.

1,314,636. Patented Sept. 2, 1919.

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J. C. CROMWELL.

FORGI'NG APPARATUS.

APPLICATION FILED IuLY 2B. |91 1.

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. WN l IUI UNITED STATES PATENT OFFICE.

JOHN C. CROM`WELL, 0F CLEVELAND, OHIO.

FORGING APPARATUS.

Application filed July 28, 1917.

To HU wlw/a 'it may concern:

Be it known that I, JOHN C. CnoMwnLL, a citizen ot the United States, residing at Cleveland, in the county of Cuyahoga. and State of Ohio, have invented a new and useful Improvement in Forging Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a view partly in side elevation and partly in longitudinal vertical section or' apparatus embodying my invention;

Fig. 2 is a view of the same partly in end elevation and partly in transverse vertical section;

Fig. 3 is a section on the line IIL-III of Fig; 1;

Fig. 4 is a ydetail sectional view showing a portion of the table roll gearing;

` Fig. 5 is a longitudinal vertical section of one of the tables on a larger scale;

Fig. 6 is an end view of the anvil and its outboard bearings;

Fig. 7 is a side view partly in section of one or' the outboard bearings removed;

Fig. 8 is a plan view of a portion of the apparatus showing thel actuating mechanism; and

Fig. 9 is an end View of the mechanism shown in Fig. 8.

My invention has relation to forging apparatus, and` more particularly to table mechanism therefor. In modern steel practice, there has been and is an increasing demand for heavy forging apparatus capable of efficiently handling heavy work. For instance, modern practice has demonstrated that to obtain the best quality of steel, it is desirable to break down the ingots by means of a hammer, instead of by a blooming mill, t-he action of the latter being injurious to the quality ot the steel. Existing forging apparatus is incapable of properly handling this class of work. Its deficiency is largely due to the fact that the table and anvil mechanisms heretofore employed have not been capable of properly supporting and handling ingots and other large pieces. The tables which have been provided are not of a character to withstand the severe pounding action which they receive from the movements of the piece being forged under the action ot the hammer, and soon crush or break.

Specification of Letters Patent.

Patented Sept. 2, 191%).

Serial No. 183,289.

The object of my invention is to provide table mechanism of improved character which, combined with novel means for supporting the worhV piece, is capable of eliicient and economical handling el" heavy work and which will not be injured'in operation.

The nature of my invention will be best understood by reference to the accompanying drawings, in which I have shown the preferred embodiment thereof, and which will now be described, it being premised, however, that various changes may be made in the details otl construction, arrangement and combination of the several parts, without departing from the spirit and scope of my invention as defined in the appended claims.

In these drawings, the numeral 2 designates the frame of a power hammer, 3 the supporting legs or columns therefor, and 4 the hammer proper. 5 designates the anvil which may be, in general, of any usual or suitable construction. This anvil is shown as set in an anvil pit 6, upon a concrete base i', having evtension 8, which Vform thesupports for the hammer and also for the table bases, as shown in Figs. l and 2.

The numeral 9 designates the main tables, one at each side of the anvil 5. Each ot' these tables consists ot' a suitable support ing frame in which are journalcd a plu rality of transversely extending roller members 10. In accordance with my invention, these roller members, instead of being circular in cross section, have a cross section such that different portions of their pcripheries are at `,different distances from the axes of rotation of the rollers. In the particular form of my invention illustrated in the drawings, these roller members are of triangular cross section, but various other non-circular cross sectional forms lnay be employed. These rollers may be driven by any usual or suitable gearing, such as the worm gearing l1, indicated in Figs. 3 and l.

The normal position of the roller members when idle is such that one of the flat.

faces of cach ot them is in a substantially horizontal plane, which is below the plane ot' the upper surface ot the anvil block 5*. The work piece (indicated at X in Figs. l and 2) is at this time supported entirely free of these roller members and o'l the table frame by .means of the anvil block and by means of outboard bearings l?, one at each side of the anvil block. Preferably, these bearings aredetachably but securely mounted on the upper portion of the anvil hase 5, which has the anvil block 5a provided with the dovetailed portion 5b (see Fig, 2). For this purpose, they may be provided with the grooved projections 12a (see Fig. 7) which may be engaged in correspondingly shaped grooves'in the upper portion of the anvil base and firmly secured therein by bolts 13 and keys 14 (see Fig. 6) or in any other suitable manner. The upper faces of these outboard bearings extend above the plane of the upper surfaces of the roller members, so that they, together. with the anvil, take the weight and blows of the work piece and entirely relieve the roller members and table `frames thereof.

The numeral 15 designates litters and manipulators for the work piece, each table being provided With a plurality of such lifters and inanipulators. In the construction illustrated, I have shown each table as having two series of them arranged in two parallel lines, as best shown in Fig. 8. These manipulators are mounted in a carriage or carrier 16, as best shown in Fig. 5. This carrier or carriage is, in turn, mounted for movement transversely of the table and also for vertical movement to raise 4and lower the manipulators in the spaces between the roller members. The mounting for transverse movement is effected by means of the shoes 1,7 (see Fig. 5) which have a sliding engagement with the rails or guides 18, and which loosely embrace the two manipulators at each end of the table. The carriage or carrier is mounted forvertical movement on the transverse rods or shafts 19 (on which it also slides transversely) eXtei1di1'1 ;.-belowA the table frame, the carriage or cari-ierliavl ing the sleeve portions 20, which slidab'ly The transverse move engage these shafts. ment, which is for shifting the work piece laterally, may be eiiiected in any suitable manner. In the drawing, I have shown` for instance, (see Fig. V8) an electric motor 21, which is connected by gears 22, with a crank shaft 23, whose cranks are connected by pitmen 24 with said carriage or carrier. The vertical movement of the carrier and its ma* nipulators may also be effected by any suitable means. In the arrangement shown in the drawings', I provide tWo bell cranks 25 and 26. The bell crank 25 is of three-armed form, one of the arms being connected to the said carrier, the second arm being connected to yan actuating rod 27, and the third arm being counterweighted as indicated at 28 (see Fig. This bell crank is pivoted to the table frame at 29. The bell crank 26 is pivoted to the table frame at 30, one of its arms being connected to the connecting rodv 27, and the other arm to the carrier 16. The

connecting rod is actuated by the pitman 31,

the approach to or delivery from the main j tables 9..

In accordance with my invention, I also preferably provide movable guides, and While these may be mounted upon the table, I prefer to mount them upon the hammer. In the construction which I have illustrated, these movable guides are in the form of ver.- tica-l rollers 37 (see Figs. l and 2). I have shown four of these rollers, two at eachside of the anvil block, making two rollers at each side of 'the work piece. These rollers depend from and are journal'ed to the adjustable slide blocks or .carriag'esv 38, which are mounted for movement-'to and vfrom the work piece on suitablefgnidesw). They can be adjusted by any suitablecojnnections,Such as the right land left threadedscrew 'rods f4.0,

each of -whchfis geared to. an' electricmotor; 41, mounted ontheframe 2 ofthe-hammer.

The advantages of my invention Iwill be apparenty to those skilled` in this art, since' it provides,y table mechanism` for lpower` vhamf mers lor 'forges capable of handling and ma. r

nipulating extremely heavyl work without injury' to the tables or manipulator-:inschanisms. TheA provision' of theoutboard supports adjacent tothe anvil block and extend-v `ing-abovefthezrol'l'membersfcauses the entire vweight, and v,blowsfof.fthe work.fpiec'e'v to be 'received byi the, anvil, "thus relieving the ta :bles and theirggme'chanisms. This constitutes a very-important feature of my. invention, as will'p ijeadily'be.;appreciated.v i

The peculiariormof,thejtable rolls adapts them for use in'kconnectionwith the outboard supports ofthisieharacter, lwhile at the same time providing-rolls'whichifa-re capable when actuatedofv feedingthezwork piece as may be desired. The manipulator' mechanisms are of simple and effective character and together with the movable guides give the operator complete control of theA work piece. Any suitable manipulator mechanism, how ever, may be used in connection with the main features of my invention.T

I do not claim herein, per se, the hammer havingguiding devices, as this forms the subject matter of a Separate application, serial No. 183,290; tiled July 28, 1917.

I claim:

1. In a forging apparatus, the combination of an anvil, a feed table adjacent to said anvil, said table having rotatable feeding men'xbers whose cross sectional shape is such that different portions of their peripheries are at different distances from their axes of rotation, a rigid outboard work-support 01' bearing located at. one side of the anvil and supported independently of the table, said work-support or bearing having its supporting surface at a higher level than the level of the uppei surface of the table feed members when the latter are in their lowest positions, substantially as described.

In forging apparatus, the combination with an anvil and work table adjacent thereto, of a rigid work support or bearing at one side of the anvil, said support or bearing being independent of the table, substantially as described.

3. In forging apparatus, the combination with an anvil, of a feed table. adjacent thereto, and a rigid work support or bearing extending upwardly through the feed table at one side of the anvil to a level above the normal surface of the feed table, said snpport or bearing being independent of the table` substantially as described.

4. In forging apparatus, the combination with an anvil and feed tables adj acent'thcreto, of means for supporting the Work independently of said tables, the tables having work-feeding members which are normally below the level of the supporting surfaces of said supports, substantially as described.

5. Ir. 'forging apparatus, an anvil base,'an anvil thereon, and a rigid work-bearing member or support carried on the anvil base at one side of the anvil block and at a distance therefrom and forming an outboard work support for the apparatus, substantially as described.

6. In forging apparatus, an anvil base, an anvil block thereon, and a rigid work-supporting member rigidly but detachably secured to said base at one side of the anvil, substantially as described.

7. In forging apparatus. the combination with an anvil, of a feed table adjacent thereto, said feed table having rotatable feeding members of a cross sectional shape such that different portions of their peripheries are at different distances from their axes of rotation, and rigid work-supporting means extending upwardly between the feeding members adjacent to the anvil, substantially as described.

8. In forging apparatus, a feed table having a plurality of rotatable feeding members, a vertically movable carriage having a plurality of vertically extending rigid lifting and manipulating members extending between the feeding members of the table, means for moving said carriage vertically, and means for shifting said carriage laterally of the table, substantiallyas described.

9. In forging apparatus, the eon'ibination with a feed table, of a carriage having a plurality of rigid vertically extending lifting and manipulating fingers, shafts upon which the carriage is mounted and upon which it is shiftable laterally, bell crank ymembers connected to said shaft, and means for actuating said members to raise and lower the carriage, substantially as described.

10. In forging apparatus. the combination with a feed table, of a carriage having a plurality of rigid manipulator fingers adapted to extend upwardly -through the feed table` vertically movable rods or shafts upon which the carriage is supported, and means for moving said carriage transversely of the table. substantially as described.

In testimony whereof, I have. hereunto set my hand.

JOHN C. CROMWELL.

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