US934672A - Punching-machine. - Google Patents

Description

W. B. KILGORE. PUNCHNG MAHNE. APPLmATloN FILED JUNE 8, 1908. y Ptelted. Sept. 21, 1909.

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APPLICATION FILED JUNE 8. 190B.

Patented Sept. 21, 1909.

2 SHEETS-SHEET 2.

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zy/Q 404 i WITNESSS l to provide for absolute accuracy in the locaniais WILLIAM B. KILGORE, 0F GRAFTON, PENNS ERNEST O. C. KUHEQ, GRAFTON, PENTTSYL'VANBIA.

Specification of Letters Patent.

aten'tcd inept. 2i, Matita.,

Application led .Turisti-1908. Seralv'o. 437,237.

To all whom. t may concern.'

le it known that l, ll'iimmii l. Kinsman, citizen el' the United States, residingl at (h'atton, inthe county of' Allegheny and, Stale olE Pennsylvania, have invented certain new and useful lImprovements in lmiching-Machines, ot which the following y is a specitication.

My invention relates to punching machines and particularly te punching machines ada ptcd to make a plurality of perforations in a blank, and has for its object. to provide a` multiple or gang' punch, the punchii'igl members oit which may be selectively `operated autoniatically.` either individually or in various `groups, to punch rivet or bolt` holes in plates. angles and sii'nilar structural members.

)i further object ot my invention is to provvide' a punching` machine and acccmpanyingr apparatus which will acccniiitish the. punching' oit the rivetI holes or similar structural nieniber automatically and witheut the necessity of handling said blank or its supporting table, said blank being once iixeld upon .said table.

A. still further object of my invention is tion ot" the punched holes in the blank and for the automatic n'ioveinent of the blank combined with said. pnnchiinbr operation; all ot which I accomplish by the novel-construction, combination and arrangement ot parts hereinafter described.

The objectsof my invention will appear itrom thefollowin,"r description. reference being' had to the accompanying' drawings which form part of this specification.

" ln the accom ian Yino' drawine's Fiffure l b La 5 D is a` plan View ofniy improved punching machine shown in connection with a plate undergoing the punching operation. Fig'. Q is a vertical. sectional view longitudinally thereof and illustrates the relation of the punch, blank, supporting bed and' the means for imparting movement to the blank. Fig'. 3 is a vertical View of the multi-ple punch, illustrating a convenient method of connect4 ing punch members into groups or gangs and the means for operating each. ot' said groups or gangs selectively. Fig. 4t is a diagrammatic illustration of the electrical circuits controlling the `various actions of the apparatus. Fi 5 a fragmentary View t ot' a portion oi'f the templet, and the lever arnis actuated thereby in. connection with a fragment oit the punch. F (S- is a perspective view of the said templet, the channel in which said templct is moved, the lever arms co-acting with said templet, and the circuit closing means at the eztremity of the lever ari'iis. Fig. i' is detailed view of one of the punching members ating` magnet. 8 illustrates a portion ot the plate after having been punched and shows the possibilities of the machine; and Figi. 9 is a view of the parts shown in E t3, showing one of the pins seated in a teniplethole and the changed position oit the lever arm.

.teerring again to the drawings for a dctailed description of my invention: Fig. l represents a punch, the traine of which may be ot any convenient or usual design and arrangement, the one shown being' irovided with a head 2 supported in suitable'guides and operated by cams 3--3 attached to a shaft and rotated by a suitable gearing 5, connecting' with suitable source of power. A clutch (3 is provided and operated by a suitable magnet .oi' other electric device A6a by `which the i'eciprocatory movement of the .unich head is controlled. Any other convenient means tor applying; power to the punch to rotate 'the cams and oscillate thev punch head Q may be substituted and. if desirable. a continuously running punch may be substituted for the one sliowiniin which tease, the' circuiti controlling the clutch could be dispensed with; but 'for :onveuie-nce, l will describe the operation ot' my machine in connection with 'the type of punch illustrated.

Punch nicn'iljers 7 are loosely mounted in recesses 8 in the punch head --Q and are free to penetrate upwardly in the said ccsses 8 when the head *9i descends so that they wiil notpeiietrate plate@ oi" any other objects which may be brought; intocontact with them unless certain ones ot said punches have previously been fixed in t ie socket 48.,

l have arranged the punch members --f'l' into Vrcups or gangs which .tor convenience l. c esignatefhy the reference iettiers c, Y), and c, as exponents of the reference numerals deignating the respective punch members and other connections.

To accompiish the selective tixing oit certain groups or gangs ot' punches T, 7b, or 76,.

and its opere I employ gags adapted to enter the upper portion of the sockets -8 to lock said punches 447. lSuitable springs 11 serve to retain these gags 1O out of contact with the punches 7 excepty at such times as certain one Aof the ages -10 are seated in their recesses--S y some suitable means. To accomplish this seating of the gags and the consequent locking of the respective unches,

I employ magnets or solenolds -1 which ysolenoids 12, 12b or 12 is energized it operates its respective gan of gags to lx all said punches connected t erewith as will be more fully set out hereinafter. v

The plate 9 or other-'object to be punched is mounted upon a frame or table -16 having rollers -717 mounted on shafts 18, said rollers bein provided with a set screw `19 to permit the setting of said rollers in any desired position on said shafts 18. The punch l 1s provided with a bed piece 20 on which are set suitablev dies 21 cooperating with the punches 7. l

The plate or other object to 'be punched is ,drawn'under the punch'l and between the punch members 7 and their coperating dies 21 by any suitable means. I prefer to draw 'the plate orv blank through the punch by means of a buggy 22.mounted on the rails 23 and, for the purpose of drawing said buggy I prefer to make use of the arrangei ment shown in Fig. 2. This drawing means consists of a linkl belt or chain 24, one end of which is attached tothe forward end of the said buggy 22 and passes over a' sheave 25 at the extreme end of the table; whence said chain or belt returns and passes around a driving drum 26 and connects with the rear end of theY aforesaid bug 22. The drum 26 is driven by a sliitald Worm 27 connecting with a motor 28 vo1' other suitable driving means and is provided with a clutch 2f) operated by aY solenoid 30 and suitable levcrl connecting therewith. The armature 32 of said solenoid 30 is extended through said solenoid and is provided with a contact finger 33 adapted'to make and break contact' across the terminals 34 so that the move-` ment of said armature which throws out the clutch 2) at the same time closes the circuit aerosslh'esaid terminals 34 andenergizesan electric brake 35, thus stopping instantly the travel of the drum 26 and they buggy 22.

holes to be punc will be understood that any other convenient arrangement of these parts may be substituted, the purpose being to control automat ically the starting and stopping of the buggy and the positive locking of said buggy when the clutch is thrown out.

Adjacent one side of the. table 16 is a channel or run-way 36 provided with rollers 37 and adapted to receive a templet 38.`-

This templet may be of wood or other suit able material in the form of a long narrow strip of sufficient length to corres ond with the ength of the late or other b ank to be punched but need e only of sufficient width to accommodate as many rowsv of templetl holes as there are varying groups or gangs of punches. For example, in the drawings l have arrangedthe unches into three gangs; the templet there ore would be provided with three rows of templet holes, one for each gang of punches. The templet 38, I

prefer to make with grooves 39, 39b and 39 .I

and. in said. grooves are located templet holes 40a 40b and 40. 'lhese templet holes correspond in longitudinal position with the i ed in the plate or other blank as'will appear more clearly from description of the operation of my apparatus. The templet 38 isadapted to be attached' to the buggy 22 or by'suitable clamps to the edge of the plate or other blank being punched so as to be held in ri -d position with relationto said blank and gee to move uniformly with Said blank in its progression through the punch.

Attached to the end of the punch is a suitable plate bracket A support-1n a plurality of lever arms 41, 41, and 41c ulcrumed to supports 42 suspended from said bracket. These arms 41, 41", and 41c are provided with pins 43, 43", and 43 respectively and are preferably provided with a small friction roller 44 to allow of the free movement of the templet`38 beneath said pins,43, 431?, and 43 without undue friction. At the op. posits end of said lever arms 41, 41b and4 41 are provided s ring contact ingers 45, 45", and 45 locate on the upper si e of the extremities of said arms and insulated from said arms by suitable blocks of insulating material. Directly above and opposite to to said bracket A are pairs of terminals 46, 46" and 46 in the circuits of the magnets 12, 12"- and 12. Directly beneath the aforesaid contact fingers 45', 45by and, 45B are similar contact fingers 47, 47b and 47 adapted to cop said contact fingers 45, 45, and 45 attached operate with terminal blocks 48, 48", 43"

and 48d located u on a suitable support susended from sai bracket and arranged in series with the circuit to the clutchmagnet 30 which controls the movement of the buggy 22 and so designed that the contact fingers 47, 47" and 47 must .all be in contart with the terminalsl 4,8, 48", 48 and 48" insure the holes adjacent the t Meere raising 'et' any one ot the arms i?, 4'1" and dit hreal: sadcircuit, l

. The shrines ei serve to exert iressiii'e on n" 1 lb 'l I the pin ends or t 43d into the t contacts 45a; nais 46, 46"

holes and maintain the and 45C against. the termilt when the said pins are in the said piet holes. y

A second v lever 50 pivoted at 51 has one arm extended in proximity tothe head 2 of the punch so as to he engaged hy a lug 52 on said head 2 whereby in the upward movement of the head Q, the said lng 5&2 raises the adjacent arm of said secondary lever 50 and tilts saine to hiring the opposite arm or" lever 50 down upon 'the lever arms 41a,- 41' .and el to free the pins 43a, 43" andlfrom the tenrplet holes, which they may he seated. A y

l will non" proceed with' the description of the; operation of my machinez-ssnming that the blank to he punched is al plate ot' the forni shown in the fragmentary view in Fig, 8 of any indetinite length and width and that it desired to punch rivet holes in Sarnein the positions indicated in said Fig.

t?. This View illustrates a usual type ol platev heviiig a double row' of alternating rivet holes alongr either edge tei'inittently .occurring rows o" rivet holes extending across said plate. lt will he nnderstood that any arrangement. of holes may y he punched but, confiningV myself in my dev scription :tor convenience to the above plate, @will proceed with the details ot the operation.

material is prepared having rows of templet holes arranged in longitudinal grooi'es, there being provided a separate grooxe tor each of thelever arms and their 'connecting pins tl-la, elf-lb and 43 and as many more as mayv be needed. ifissnming that. the row ot rivet wo edges oi the plate, which l have indicated en .said plate in Fig. S hy the reference characters u', d, etc.; are operated hy the lever arm 4l", that the adjacent row of rivet holt-srv i, o, etc, are controlled hy the lever arm 4l, and that` 'the remainingI holes, indieatml'hy tends across the plate are lever 4l". lt will he seen that the templet will ha vc corresponding grooves 235), 3551 and 39E, and that the 'teinplet holes in each of said grooves will he spaced lmgitndinally to coincide with the longitudinal spacing'ot' the correlating riifet'l'ioles to he punched in the plate. The plate is placed upon". the 'ahle lo and the forwardv end of .said plate clamped hy any snit-able means to the buggy 'lhe teiniilet is in .like manner placed in the channelfh parallel to the plate and rlainped to the lniggy or,` if found more conhe ieijers fit1, il". and 41C' of pins 48?, 43" and of the plateand in.- i

A tennilet of wood or 'other convenient' which ofi'-y operated hy `the venient, directly to the adjacent edge of the plate so 'as to with. The 'Contact lingers of all three lever arms heine' down by' reason of their pins be'- ing outv or' engagement. with any ot the teniclosed, thas starting the drum 2G and the buggy 22 nieves forward drawing with it the plateff) and the templet 38. As the teniplet holes come intoeng'agement beneath'the pins 43", 43 and 430 (it being apparent from l `1, that the first templet the drawing, Fifi".v I holes in leach groove are in line),tl1e said l, pins of-all three arms will drop and seat in said teinplct holes whereupon nader the action of they springs 49, the opposite endsy 'of l said lever arms will fly upwardly breaking the circuitY to the l stop. Atthe ,saine time the contact lingers 4ta, 45? n respective co-acting I eGand-GC, thus'closing thdcircuits to yeach oi the gag magnets l2, l2 Aand 191", l"whit-h are 'thereby punches 7l, Wand 7C.' At the same' time the upon all of' the punches are brought down into action with the plate and prodneethe and c. y l

As the punch head 2 movement, the lng ondary lever forces down the finger lit" 4and 4i `breaking of'said sec ends ot the:.levers 41a, the circuits to theclntch i gag magnets l2, llllarnd l2 anflhringing the contactlingers 47, 47" andI 1li into eon. thereby closing the circuit' to the clutch niagnet 30, 'throwing ottA 'the y electric] brake hy breaking the Contact at 33 andI again start ing' CP1 v l i l he held in rigid correlationy with the said plate to move 'uniformly thereand 45 make contact'- across theirj pairs of ternnnals .46,

energizedand actnate their coinv 'meeting levers to lock the three,f 3a-l1,g ;sloi" v rises .in the upward olitts the adiacent end; ot the secondary lever 50, the opposite end .j

magnet (31 and tothe i piet holes, the circuit to the magnet .30 is clutch' magnet 3(1), rinsing the circuit to the electric brake hy the conl tact linger 33 actuating the said clutch mag?, net'BO thereby bringing the buggy to Ia dead magnet (3 which connect-s by separate ,wind-Vv ings with each of the three aforesaid circuits. is energized and actuates the clutch 6 where-i` tact with the terminals 48?, 48h, 4S andtilwy the buggy. the ,pins 53 yandV v4B" al, the-,I *y

saine time being lifted holes. The buggy then draws the 'teniplet forward until'the 'next teinplet hole comes into engagement with a'gpi'n, which from the ldrawing will he seen to he Ythe pio 43h, whirhas ahoye descrihedlenters thetem- )let hole,y in itscorresponding gi o ove whereliy the circuit to the magnet the circuit to the magnet l :2" i 's closed, A'the from. the templet. 1 plate, and

30 yisibii'iken and magnet@ again energized, the punchstarted,

and. the saine operation"takes place prod ucing the perfor-ations indica-ted in Fig. 8 by' y the reference letters "f. ln like manner the. l subsequent prnishing plpceeds, the apparatus working automatically without any attention whatever from the operator, the plate and templet once having been set and the current applied. The buggy starts and stops automatically; is immediately locked and the appropriate gag or gags thrown in; the punch brought into action; the punching operation performed; the punch again stopped; the gags released; the brake thrown off the buggy started and the plate and templet advanced for each successive punch, all of which is continuous as above described.

It will be apparent. that il a continuous punch is used the circuit to the clutch 6 may v be dispensed with. Many slight modifications of circuits, contacts and' mechanical means for embodying the above described features will be apparent and l 'do not wish to confine myself strictly to the embodiments herein described, but

. Having thus fully describediny invention,

` I claim as new and desire to protect by Letplura ters Patent of the United States.

1. Ina unching machine, a movable work support a( apted to receive a blank, acmplct support adapted to receive a movable teinplet, a punch head, the elements of which are movable and adapted to be locked in operative position in groups, means for advancing the blank and templet in unison, and a common means for sinlultancouslysto )ing the movement of the templet and locking certain of said punches.

Q. In a punching machinc,a work support adapted to receive a blank., a temple't support adapted toreceive a templet, a connection between said work support and said templet, a reciprocating punch head provided with a ity of punching members mounted therein, means independent of the punch head moving means for advancing the blank support -and templet in unison, -a common 4means for simultaneously stopping said teni-- plet and locking certain of said punch mem- )ers in operative position, and means adapted to discngage the locking means for said punching members and release the blank ad- Y vancing means andthe templet.

3. In a punching machine, a work support adapted to receive a blank, a templet support parallel with and at ,one side of Said work Support and adapted to receive a movable templet, apunch head provided with a 'plurality of punching members, a connection etween said work sup ort and the templet, means for advancing t 1e blank support and the templet and simultaneously locking said punching members in predetermined groups, and a clutch for controlling the movement of the punch head actuated at the .same insta-nt as the blank support and the punch gags.

4. In a punching machine, a work support `adapted to receive a movable blank, atemplet support parallel therewith, adapted to receive a movable templet, a punch head pro- Ivided with a plurality of punehing members loosely mounted thereln and connected means for advancing the blanky in groups, and templet in unison, electro-mechanical means for locking said groupsv of punching members, xed pivoted arms adapted to cooperate with said templet to actuate the'said punchv locking means and the blank advancing means.

5, In a punching machine, a work support adapted toreceive a blank to be punched, a

templet support parallel therewith adapted l to receive atemplet, a4 templet provided with longitudinal grooves and tem let holes in said grooves, a'punch lprovid with a (plurality of unching` members connecte in groups and) adapted to be selectively locked in the head ofsaid punch, means for locking said punching members, means for advancing the blank and templet in unison, arms pvoted adjacent the punch and provided with pins adapted to cooperate with grooves in said tem let and enter the said tem let v holes in sai grooves-and meansattache to said pivoted arms to',ac tuate the aforesaid unch locking means and the blank advancmg means.

6. In a punching machine,-`a work support adapted toreceive a blank to be punched, a templet support parallel therewith adapted to receive a templet, a templet provided -with longitudinal grooves `and vtem let holes in said grooves, a punch provide with a lurality of unchin members connecte in roups an adapte .to be selectively .locked 1n the head of said punch, magnets connected with each of the said groups of punching members adapted to lock said punching members in the head of the punch, a buggy for drawing the blank and templet in umson, electrically controlled driving means for said buggy, electric means for locking said buggy co-acting with said driving ineens,

arms pivoted adjacent the punch provided at one `extremity with pins co-acting with the grooves of said templetadapted to enter the -tcmplet holes in saidgrooves, contact lin.-

posite extremityof said piv' oted arms a apted to actuate the buggy and similar contact fingers gers at 4the o moving means, adjacent, thereto adapted to actuate the punchlocking magnets.

7. Inla punching machine the combination with a punch havin a plurality of punching members and provi ed with gags adapted to lock said punching members, a supporting bed therefor, a vblank to be perforated, of a templet provided' with longitudinal grooves having tem let holes therein corresponding longitudinal with the perforations to vbe punched in ,the blank, means for advancing said blank' and templet in unison, magnets adapted to actnate the aforesaid gags, 'arms pivoted adjacent the punch and provided with pins adapted to enter the templet holes in Said templet, contact fingers on the oppoadapted to receive a movable blank7 a tem- Site end of said arms adapted to make and plet Support parallel therewith adapted to break an .electric circuit controlling the receive a n'iovabletemplet7 a punch head pro- 20 blank advancing means, similar .contact nl vided with a plurality of punching members gers adapted to make and break electric cirlooeely mounted therein and connected in cuits communicating with said rag magnets, `groups, means for advancing; the blank and and means for intermittently starting and i templet in unison, and electro-mechanical Stopping the punch. means for simultaneously lockingsaid groups 25 In a punching machine, a tixed'vvork ot.' punching' members and arresting vthe support adapted to receive a movable blank, movement of the blank and templet. a fixed templet support parallel therewith In testimony whereof I alli); my signature adapted to receive a movable templet, a 1 in preeence of two Witnesses.

punchv head provided with a plurality of l p punching' members selectively mounted therei VILLIAM B KHIOL' in and connected in groups, and means for adlVitnesses.: vancllng the blank and templet 1n unison. L. BosAii,

9.r In a punching machine, a work support ,i A. H. KAULMAN.

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