US1238785A

US1238785A - Riveting-machine.

Info

Publication number: US1238785A
Application number: US10611316A
Authority: US
Inventors: Francis P Kenney; William J Elliott
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-06-27
Filing date: 1916-06-27
Publication date: 1917-09-04
Anticipated expiration: 1934-09-04

Description

F.'F. KENNEY & W. J. ELLiOTT.

RIVETING MACHINE.

APPLICATION FILED IUIIEZI. 1916. jl.

Patented Sept. 4, 191?.

2 SHEETS-SHEET l.

Las;

QRHOMWIQS F. P. KENNE'Y I W. J. ELLIOTT.

RIVETING MACHINE.

APPLICATION FILED IHNEN. |916.

Patented Sept. 4, 1917.

2 SHEETS-SHEET 2.

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I t!" d. ELLEQTT, 0F PADELPHJIA, SYLV.

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peciucation of Letters Patent.

Patented nept. 4l, 1.2i '3.

Application filed June 27, 1913. Serial No. 106,113.

To all whom t may concern:

Be it known that we, FRANcIs' P. Kenner and WILLIAM J. Emo'rr, of Philadel hia, in the county of Philadelphia and. tate of Pennsylvania,l have, invented certain new and useful Improvements in Rlvetmg-Machimes, lwhereof the following is a specification, reference being'had to the accompanying drawings. U n

The vinvention relates to riveting machlnes and more particularly to that type of riveting. machine adapted to be used 1n connection with heavyplates, such as are used 1n boilers and the like, and also for bridge and structural work. o

In machines of this type, the work which is being riveted is suspended between the riveting dies and has a tendency to swing, and drlft out of line, or ahead-and away from the plunger die, due to the momentum caused by the thrust of the plunger die and the suddenretarding in velocity caused by the rivet encountering the stationary die.

An object of the invention is'l to provide means for holding the work in operative position so as to prevent it from swinging or Another object is to provide a cushioning means, whereby the work is properly spaced from the stationary die and the shock of the encounter `minirnized, so as to prevent the possibility of the rivet being canted or pushed out in back.

Still anotherobject is to provide `means tor alining the work so that the rivet 1s always brought in position directly between the two dies. O e

With these andother obJects 1n view, we provide cushioning means, such as plungers, in connection with both the movableand stau tionary dies. rhese plungers project forward in advance of both dies and engage and steady the work so as to prevent it from swinging when the dies engage the rivet. We further provide that the'heads of the plungers' are so shaped and spaced as to engage the heads of the rivets on either side' of the one being upset, so as to hold the rivet in exact Aalinement between the dies.

Referring to the drawings, ligure l, is a diagrammatic plan view showlng a pprtion oi a riveting machine and the adaptation of our invention thereto.

Fig. Il, is a similar view illustrating the machine 1n riveting position.

Fig. lill, is a view of tbe same, partly in elevation and partly in section. I I A. machine constructed according to our lnvention comprises generally

jaws

1, 1, which terminate in head 2, which carries stationary die 3, and headl 4, which houses the movable or plunger die 5.

Mounted on head 2,v on either side'ot die 3, are cushioning plungers 8, and 9. These plungers work in

cylinders

10, and 11,'and are provided with adjustable heads 12, and 13, appropriately recessed at 14:, and 15, to engage rivet heads 62, and 63. By engaging the rivet heads the plungers serve not only to center the work 16, but also to properly space it, from stationary die 3, so that it is at the proper distance when rivet blank 17, which is to be upset is rst engaged by movable die 5. This s acing distance may be adjusted by means o bolt and screw connections 19, see Fig. Hl.

Similarly mounted on head 4, and on either side of movable die 5, are advancing

plungers

20, and 21. rIhese plungers work in cylinders 22, and 23, and are provided with adjustable socket heads 24, and 25, appropriately recessed at 26, and 27, and adapted to engage

rivet heads

60, and 61, on the opposite ends of rivet heads 62, and 63, engaged by adjustable socket heads 14:, and 15.

Plungers

20, and 21, may be operated by 1 any appropriate pneumatic or hydraulic means which may conveniently be drawn 'from the same source as that used to operate movable die 5. ln the embodiment shown in the drawings, the Huid enters through inlet pipe 30, controlled by valve 3l. VWhen the valve is in the position shown in uid is admitted through pipes 32, to the forward ends of cylinders 22, and the plungers are moved to their back- .ward position as shown. lin this position valve 31, also connects

pipes

34, and 35, with outlet pipe 36, so that any Huid which may have been in the rear ends of

cylinders

22,

and 33, and 23,

Fig. l,

and 23, is thereby allowed to escape. When,

ilo

relationto movable die 5, that when pressure is admitted they move forward to ether with the plungers in advance of the ie, as shown in the drawings. In this way the iirst contact with v,the work is made by adjustable socket heads 24,and 25, which engage

rivet heads

60, and 61, on either side of rivet blank 17. In order that'the socket heads may be in a proper position to engagie these-rivet heads, they may be laterally a justed by means of bolt and screw connec tions 40, and 41, by which the distance between cylinders 22, and 23, may be varied.l So also the angle atwhich the socket heads are set, may be adjusted by means of crowned connections 42, and 43, best shown in Fig. III. After sockets 24, and 25, have engaged their respective rivet heads

lungers

20, and 21, move the whole wor toward stationary die 3, until rivet heads 62, and 63, on the other side are engaged by socket heads 12, and 13. These heads are also adjustable by means of similar crowned connections 44, and 45, and capable of lateral regulation by means of screw bolt connections 46, and 47. In this positionthe engagement of thek rivet heads by the socket heads holds the work firmly so as to be in capable of any swinging or driftin motlon.

The work is, however, only he d under a yielding pressure, by each of the plungers 8 and 9. These plungers are 'identlcal and a description of one will, therefore, suiiice for both. Plunger 9, is formed with a head 50, adapted to slide in cylinder 11, under the action of a spring 51, which abuts against head 52. Head 52, is controlled by set screw 53, and by means of it the tension of the spring may be regulated. The tension of the springs, however, is not suiiicient to ali'ect the action of movable die 5, when it moves forward and upsets rivet 17; consequently, it carries the whole work with it until tpe parts are in the position shown in Fi .I

n operation the work is suspended be-A tween jaws 1,'1, and the rivet blank to. be upset put in place. The distance between plungers is regulated and the socket heads set at the proper angle to engage the ad jacent rivet heads. If no rivets have been driven before, dummy rivet heads are placed in the holes so that the work may be properly engaged and centered. Valve '31, 1s turned as shown in Fig. II, so that

plungers

20, and 21, move forward and together with plungers 8, and 9, engage the work, so that rivet blank 17, is accurately centered and the work is properly s aced from stationary die 3,when the rivet lank receives the impact from movable die 5.

The effect of cushioning plungers 8, and 9, is to hold the work in such a position that practically no further motion of the Work takes place and both heads are formed practically simultaneously at vthe first moment of contact of movable die 5, with rivet blank '17. What little movement there is, due to the iattening of the ends of rivet blank 17 is taken up by cushioning springs 51, which yield to the impact of movable die 5, upon the work. At the same

time advancing plungers

20, and 21, being under pressure, move forward correspondingly so that the work -is always held and kept 1n its proper relative position.

Having thus described our invention, we claim:

1. In a riveting machine the combination of a movable die and a statlonary die; means connected with both of said dies adapted to coperate to engage the work, whereby the work is properly centered in relation to said dies.

` 2. In a riveting machine, the combination of a movable die and a stationary die, means coperating with said stationary die for spacing the work therefrom, and meanscooperating with both of said dies for centering the work between the stationary and movable dies. Y

3. In a riveting machine, the combination of a movable die and a stationary die, means coperating with said dies adapted to engage rivet heads in the work whereby the work is properly centered between the stationary and movable dies.

4.1 In a riveting machine, the combination of a stationary die and a movable die, a plunger mounted adjacent said stationary die adapted to engage a rivet head in the work to be riveted, whereby the work is properly centered and spaced from said stationary die.

5. In a riveting machine, the combination of a stationary die and a lmovable die, a plunger mounted adjacent said stationary die adapted to engage a rivet head inthe work to be riveted, whereby the work is properly spaced from said stationary die, and means for cushioning said plunger.

6. In a riveting'machine, the combination loq of a stationary die and a movable die, a

plunger mounted adjacent said stationary die, a socket head, mounted on said plunger, said socket head being recessed to engage a rivet head on the work being riveted.

7. In a riveting machine, the combination of a stationary die and a movable die, a plunger mounted adjacent said stationary die, a socket head mounted on said plunger and recessed to engage a rivet head on the work being riveted, and means for adjusting said socket head. v v

8. In a riveting machine, the combination of a stationary die and a movable die, a plunger mounted adjacent said stationary die, said plunger being adapted to slide in a cylinder under the tension of a spring, and toI engage a rivet head in the work benaeegves ing riveted, whereby the work is properly centered and spaced from said stationary die.

9. In a riveting machine, the combination of a stationary die and a movable die, a plunger mounted adjacent said stationary die, said plunger being adapted to slide in a cylinder, and means for adjusting said cylinder in relation to said stationary die.

10. In a riveting machine, the combination of a stationary die and a `movable die, plungers mounted on either side of said stationary die adapted to engage rivet heads in the work being riveted, and means for adjusting the distance between said plungers. j

11. In a riveting machine, the combination of a stationary die, and a movable die, plungers mounted adjacent said movable die, adapted to engage rivet heads in the work being riveted, whereby the work is properly alined between said dies.

12. In a riveting machine, the combination of a stationary die, and a movable die, a plunger mounted adjacent said movable die, a socket head mounted on -said plunger, said socket head being recessed to engage a rivet head.

13. In a riveting machine, the combination of a stationary die, and a movable die, a plunger mounted adjacent said movable d1e, a socket head mounted on said plunger and recessed to engage a rivet head, and means for adjusting said socket head.

14. In a riveting machine, the combinatlon of a stationary die and a movable die; a cylinder mounted adjacent to `said movable die; a plunger adapted to slide in said cylinder and pneumatic connections whereby said plunger is moved forwardin advance of said die, so as to engage the work and roperly space it in relation to said mova le die. i

15. In a'riveting machine, the combination of a stationary die, and a movable die,

plungers mounted on either side of said movable die adapted to engage rivet heads in the work being rivet/ed, and means for adjusting the distance between ,said plungers.

16. in a riveting machine, the 'combination of a stationary die, and a movable die, a plunger mounted adjacent said stationary die adapted to engage the head on one end of a rivet in the work being riveted, and a die adapted to engage the head on one end of a rivet in the work being riveted, a plunger mounted adjacent said movable die adapted to engage the head on the other end of said rivet, and means whereby said plunger adjacent the movable die moves forward to engage its rivet head and 4carries the work forward, so that the head on the other end of the rivet is engaged by the plunger mounted adjacent the stationary die.

18. ln a riveting machine, the combination of a stationary die, and a movable die, plungers mounted adjacent said stationary die adapted to engage the heads on rivets, in the work being riveted, plungers mounted adjacent the movable die adapted to engage the heads on the other ends of said rivets, and means for adjusting said plungers so that they are in proper position to engage said rivet heads.

in testimony whereof we have hereunto signed our names, at Philadelphia, Pennsylvania, this nineteenth day of June, 1916.

FRANCIS i?. KENNEY. lLdAM J. ELLUTT.

Witnessesz.

farms H. Bann, E. L. Fiori.'