US1808041A - Shearing, punching and riveting machine - Google Patents

Description

June 2,. 1931. A. JOHNSON, JR., ET AL 1,808,041

SHEARING, PUNCHING', AND RIVETING ICHINE Filed June 1, 1929 s sheet-sneet 1 mme/MMM flbtomuo June 2, 193.1.

A. JOHNSON, JR., ET AL SHEARING, PUNCHING, AND RIVTING UACHINE Filed June l. 1929 3 SheetsfSheet 2 5mm/m5 June 2, 1931. A. JOHNSON, JR., E1' Al. 1.803.041

SHERING, PUNCHING, AND RIVETING IAQHINEl F-iledAJuna 1, 1929 5 Sheets-Sheet 3 TIO Patented June 2, 1931Y Unirse! i STATES PATENT orrlcr.

.ANDREWT JOHNSON, JR., OF ROSEAU, MINNESOTA, .AND GEORGE F. WORTIIINGTON, SR.,

OF CHICAGO, ILLINOIS, .ASSIGNORS TO VEGA SEPARA'IOR CORPORATION .OF

AMERICA, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS SHEARING, PUNCHING AND '.R-IVETING- MACHINE Application filed J'unc 1, 1929. Serial No. 367,815.

This invention relates broadly to machines in which a movable member is forcibly moved with respect to a stationary work support to perform work, for instance, a shearing, punching or riveting operation.

The specic embodiment of the invention ner. We are thus enabled to use power multiplying means lin which relatively great movement of the handA lever or the like 1s reduced to very little movement of the workperforming member, with consequent great multiplication of force. By providing for the step-by-step advance of the work-performing member however, the necessary amount of movement may be imparted toit,

to perform the required work, and each1 step is carried out with much moreforce than would be possible with less reduction between the operating lever or the like and the work-performing member to obtain greater travel of the latter.v

It is a further aim of the invention to provide a unique construction whereby all rivets securing an f cutter section to a sickle bar, may be simultaneously and easily shear-ed for removal, and the present machine embodies not only av punch for removing the sheared rivets, but means for upsettino` new section securing rivets with ease A still further object is to provide a machine of rather simple and inexpensive construction, yet one which will be highly efcient and in every way desirable.

With the foregoing in view, the invention resides in the novel subject mattei' hereinafter described and claimed, description being accomplished by reference to the accompanying drawings.

Fig. 1 is a side elevation.

Fig. 2'is a front elevation.

Fig. 3 is ajcentral vertical longitudinal sectional view as indicated by line 3 3 of Fig. 2.

Figs. 4, 5 and 6 are horizontal sectional views on lines 4 4, 5 5 and 6 6 of Fig. 1. Fig. 7 is a perspective view of a die plate hereinafter described. f f

The general construction herein disclosed may be considered as preferred and while this construction will be herein specifically explained, it is to be understood that within the scope of the invention as claimed, varia-` tions may be made.

The numeralk 8 denotes a rigidly lconstructed kstandard having a base 9 adapted to be secured upon-a horizontal support such as a workbench. At the front end of the base 9 is a forwardly projecting stationaryjaw or work support 10 from` which a flange 11 preferably projects downwardly to lie against the edge of the support. The standard 8 is provided with a straight front side 12 formed with a central longitudinal groove 13, and lying against said side 12, is a vertically elongated slide 14 which is formed between its ends with a central longitudinal slot 15. end of this slot, slide 14 is provided with a rib 16 slidable in the groove 13. A suitably shaped block 17 constituting a fixed jaw, is disposed for the most -part in front of the slide 14, being provided with fiat rear faces 18 lying slidably against the flat front side of said slide. This block is also provided with a rearwardly projecting rib 19 which `is slidably received in the slot 15, the rear side.20 of lsaid rib 19 being reduced and snugly received .in the groove 13. Two

studs 21 and 22 are passed rearwardly :y

through appropriate openings in the block 17 and are threaded into sockets in the standard 8 forrigidly securing said block to said standard so that in addition to constituting a stationary jaw, said ,block co- A .t the lower Resting removably upon the upper end of Y the block 17, is a rectangular die plate 23 having a cylindrical stud 24 received aV` socket 25 in said block. One edgeof Vthe plate 23 abuts a shoulder 2G on the block 17VV to hold said plate against turning about the stud 24 as a pivot. The oppositev edge of block 23 is inwardly spaced fromsan up# standing flange 27 with which the front portion of the block 17 is provided,-the space between plate 23 and fiange 27 constituting a channel 2S for a purpose to appear. Aat its inner side, the flange 27 is provided with an upwardly facing ledge'29 near the open upper side of the channel 28, and the function of this ledge will also be explained hereinafter. j i

Over the block 17, the slide 14 is provided with a forwardly projecting jaw 30 which is integral with or otherwise rigidly joined to said slide. .l aw 30 is provided with aflat front side 31 vertically alined with the outer side wall of the channel 2S, for a purpose to appear.

I is preferably provided with a transverse cutting blade32 co-operable with a. stationary blade 33 secured to the upper end of the standard 8. These blades may be used for cutting metal, upon insertion of such metal between them and depressionfof the slideV 14.

Preferably near one ofV its corners, the jaw 31 is provided with a downwardly projecting riveting stud 34 having a rivet head receiving cavity 35`in its'lower end.' stud is removable, being preferably threaded into the jaw 30. Plate 23, beneath'the stud 1 34, is provided with a rivet upsetting'cavity 36 and the formations 37-38'in the'A upper side of Vsaid plate are for the purpose of receiving the previously upset ends of rivets while the endof one rivet is being upset.V

If the rivets be such that they require forcingagainst a fiat surfaceto upset them, instead of` forcing into a recess suoli as SG, the plate 23 is lifted and turned to dispose Vthe flat face 39 under the )stud 34.l V`When this is done, the formation 40 will receive" a previously upset rivet end while theend` of another rivet is being similarly upset.

The channel 28 above described is adapted to receive the rear edge of a sickle bar 41A as shown in Fig. 1. The rear end lof any of the Vusual cutter sections 42 secured to the bar 41, 1s then disposed against the ledge 29 as shown, withone side ofthe section 42" lying against the fiat front end 31 of the jaw 30. lllith the parts so positioned, forcible depression of the slide 14 will cause jaw 80 to force the sickle bar 41 further into the channel 28 while the section 42'is held against descent by the vledge 29.;` Consequently, Vall of the rivets 43 securing the section 42 to the sicklebar `4l will bejsheared.

Above, the jaw 30, the slide 14A This For then removing the'sheared rivet portions from lthe openings in the sickle bar 41, a punch 44 is carried by and projects downwardly from the slide 14. The sickle bar is placed upon the jaw or support 10 with a rivet portion to be removed disposed in alinement with the opening 45 in said jaw 0r support. .Them lupon depression of the slide 14, ,the punch 44 will remove said rivet p0rtion.V YPreferably the upper end of punch 44 is adjustablyV threaded at 46 into the lower end ofthe slide 14. This punch is also of advantage in punching out the rivets which attach Ythe usual head to the sickle bar, the operating means for the slide 14 being of such v nature as to readily depress said slide with the necessary force for performing 'this operation or for shearing the sections opening 48 into which the upper end of a vertical screw '49 is adjustably threaded. The lower end of this screw is provided with a knurled head 50 whose upper side constitutes a thrust shoulder for the slide 1'4. A thrust member or second slide 51 is disposed below the slide 14 and is provided with a rib 52 slidablyreceived in the groove 13 of the standard V8. This thrust member or slide 51 is formed with an opening 58 alined with the opening 48, said opening 53 slidably and rotatably receiving a smooth portion 54 of the screw 49. l The member 51 is formed with an additional opening through whichthe punch 44 passes, and al set screw 56 is provided for securing said lmember 51 'to said punch when it is desired that the two lis pivoted` at 6() tothe upper ends of two strong links 61, the lower ends of these links being pivoted at 62 to the lower Vslide or thrust member 51. When the parts stand about as shown in Figs. 1 and 3 and slide 14 is supported in such position by the work to befacted upon, depression of lever 57 causes links 61 to thrust dowi'iwardly upon the lower slide/or thrust Vmember 51. This Y member lv'in turn thrusts against the thi-ust shoulder or head 50 of the screw 49 thus exerting downward force upon the slide 14 to perform the desired work. The screw 49 may be adjusted to vary the space between the twoslides 1%-51 and hence pivot 60 may -be allowed to have any desired relation with a vertical-'line passing `through the fulcrum 59, vwhen the actual work of depressing the started.

slide 14 is started. Vhen work is being accomplished requiring unusually strong downward pressure upon the slide 14, screw 49 is adjusted so that pivot 60 is only slightly in front of a vertical line passing through the pivot 59, when the work is Consequently, upon depression of lever 57 further, pivot 60 moves downwardly a very small amount, correspondingly moving the thrust member 51, the screw 49 and the slide 14.` Great power however is produced by this operation, vWhen the machine is used for a purpose not requiring so much power, screw 49 may be adjusted so that pin 60 will be further in advance of a line passing through the fulcrum 59, when the actual work of depressing theslide 14 starts. Hence, upon depression of lever 57, slide 14 will be downwardly moved a greater distance than with the adjustment previously described. If the work be such that more than one depression of lever 57 is necessaryV to move slide 14 downwardly the required amount, said lever is depressed once after making the proper adjustment of the screw 49 and is then raised,`during which movement the links 61 raise the thrust member 51 from the head 50. The screw 49 is then turned upwardly, for instance a half revolution, and lever 57 is again depressed, with the result that the thrust member 51 engages a the head 50, pulls downwardly upon the screw 49 and again lowers the slide 14. This sequence of operations may be repeated as many times as necessary to depress the slide 14 to the required extent and it will be seen that by advancing or depressing this slide in the step-by-step manner explained, theV maximum leverage of the operating means 57-59--60--61 may be utilized in effecting each step of depression. Consequently,

worlrcan be accomplished which could notbe done with a machine in which there was vless reduction between the operating lever or the like and the work-performing member. l Whenever slide 14 has been finally lowered to the required extent to complete an operation, the set screw 56 is tightened.

Hence, upon the next raising of the leverv 57, the corresponding raising of the member 51 will cause upward forcing upon the punch 44 and upward return of the slide 14.

Preferably employed in connection with the features above described, is an additional shearing tool 63 having an adjustable threaded connection 64 with the lower end of the screw 49. This tool may be used for rivet cutting or any other desired purpose.

1f desired, the upper portionof the inachine may be used as a vise. AlVhen this is to be done, the stud 34 is removed and if desired, the die plate 23 is also detached. Any work to be held, may then be positioned between the jaws 173G to be tightly,

proper adjustment may be made so that the pivot pin 60 will snap past dead center when lever 57 is completely depressed, thereby locking the slide 14 in the position at which the work is tightly held between the jaws 17-30. Y n f To remove an inferior cutter section 42 from the sickle bar 41, these parts are positioned as shown in Fig. 1 and the lever 57 is operated to depress the jaw 30. 1f desired, several depressions of this lever and adjustments of therscrew 49 may be employed to depress jaw 30 in a step-,by-step manner with great power. -Bar 41 is forced downwardly intov the channel 28 by depression of the 30, thereby shearing the rivets 43. The sheared rivet portions still remaining in the openings of the bar 41 may then be removed by the punch 44. Vhen a new cutter section is substituted for that removed, its rivets may be upset quickly and easily by co-action of the riveting stud 34 with the proper vportion of the die j the rivet heads. Thisoperation is permitted j due to the tremendous force obtainable-from the machine by successiveoperations olf the hand lever 57 and adjustments of the screw 49 after the downward movements of said lever; j

lVhile, as above stated, the construction shown may be vconsidered as preferred, attention is again invited to the fact Athat within the scope of the invention as claimed, variations may be made.

llVe 'claim:- f Y 1. A machine of the class described comprising a stationary work support, a workperforming member adapted to be advanced step-by-step toward said support, said workperforming member having athrust shoulder ransverse to its line of movement, a thrust member co-operable with said shoulder, means for first moving said thrust member to thrust against said shoulder and advancel said work-performing member l one step and for then withdrawing said thrust member from said shoulder, and means whereby said shoulder and 'said thrust 'member may thenbey relatively adjusted again into Contact with each other in readiness for advancing said work-performing member aV connected with said work-performing 'mem-A ber for'adjustment in the direction of move-V ment thereof, said screw having a thrust shoulder, a thrust vmember co-operable with Vsaid shoulder, andvmeans for first moving said thrust memberto thrust against said` shoulder and advance said work-pertornnng member one step and for .then withdrawing said thrust member roin said shoulder,

whereby said screw may be adjusted to dispose its shoulder again in contact with said thrust member in readiness for advancing- Y said work-performing member a second step in the saine direction.

3. A machine of the class described comprising a standard.l a jaw-carrying slide lying against one vertical side ot said standl ard, a stationary block constituting a stationa-ry jaw, said block being secured to said standard and having portions engaging the slide and co-operating with said standardV in mounting said slide, a second slide engaging the standard in spaced relation withA said jaw-carrying slide, a lever 'ulcrumed to said block, a link connecting said lever with said second slide Jor operating the lat-l slide, ak lever fulcrumed to saidv block, a-

link connecting said lever with said second slide for operating the latter, and an adjustable operating connection between thetwo slides 'for vertically adjusting them toward and from each other. f

5. A machine of the class "described comprising a standard having a rigid jaw, a slide mounted for vertical movement on said standard and having a aw co-operable with said rigid jaw, a second slide engageing said standard for vertical movement, the two slides being provided with' verticali-y alined openings, and a vertical Vscrew sn'ivcled in one of said openingsV and threaded into the other ofsaid openings for ,vertically adjusting the slides toward and -from each other. Y

6. A machine of the class described comprising a standard, a jaw-carrying slide Y lying against one vertical side of said standard, a stationary block constituting astationary jaw, said block being secured to said standard Vand having portions engaging the slide and co-operat-ing withsaid standard jaw-carrying slide lying against one side of said vstandard and having a longitudinal slot, a block constituting a rigid jaw, said block'lyi'ng against the outer side of said slide and having a vertical rib received in said slot and secured to said standard, a lever fulcrumed to said block, and operating-connections between said levery and slide.

8. A machine of theclass described comprising a standardV having an upper rigid jaw and a lower rigid jaw, an upper and a lower slide mounted on said standard, saidr upper slide having portions co-operable with said upper `and lower jaws respectively, means for depressing said. lower slide, and an adjust( ble operating connection 'between the two slides for vvertically adjusting them toward and from each other.

9. A structure as specified in claim 8;

said adjustable connection consistingof a vertical screw swiv'eled in the lower slide and adjustab'ly threaded into the upper slide, and a vertical tool adjustably threaded into the lower end of said screw for co-action with said lower jaw.

10. A structure as specified in claim 8; the portion of said upper slide co-operable with said Vlower jaw consisting of a vertical tool havingV a threaded vertically adjustable Vconnection with said upper slide, said lower slide having an opening/through which said tool passes slidably. .j 1].. A machine for shearingtheconventional sections from a sickle bar, comprising` a jaw having lagchaiiinel to receive the rear edge of thesickle bar, said jaw havinga ledge at one side of said channel to abut the rear end of one of the sections, a sec.

ond jaw opposite said channel, 'said second jaw having one face .to abut the front edge of the sickle bar and another face to lie against the inner side of one of the sections, and means for relatively moving said jaws 4to cause further forcing of the sickle bar into said channel while the lsection is held by said ledge, thereby shearing the rivets connecting the section and sickle bar.

In testimony whereof we have hereunto affixed our signatures.

ANDREV JOHNSON, JR. Y GEORGE F. VORTHINGTON, SR.

@in Vmounting said slide, a lever tuicrumedV Y to said block, and operating connections vbetween said lever and said slide.`

7. A machine of the class describedy comprising a standard, a vertically elongated iiol Y

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