US1926576A

US1926576A - Punch press mechanism

Info

Publication number: US1926576A
Application number: US524535A
Authority: US
Inventors: William R Beatty
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-03-23
Filing date: 1931-03-23
Publication date: 1933-09-12
Anticipated expiration: 1950-09-12

Description

Sept. 12, 1933. w. R. BEATTY 1,925,576

PUNGHfRESS MECHANISM Filed March 25, 1931 5 Sheets-Sheet 1 Sept. l2, 1933. w. R. BEATTY PUNCH-PRESS MECHANISM Filed March 25, 1931 5 Sheets-Sheet 2 Sept. 12, 1933. w. R. BEATTY PUNCH PRESS MECHANISM Filed March 23, 1931 5 Sheets-Sheet 3 Sept. l2, 1933. w. R. BEATTY PUNCH PRESS MECHANISM Filed March 23 1931 5 Sheets-Sheet 4 Sept. 12, 1933; w. R. BEATTY 4 PUNCH PRESS MEcHANIsM Filed March 23, 1951 5 Sheets-Sheet 5 |||lx||| Il l IIIHU...

Patented sept. 12',1933 I A $26,576

- @UNITED STATES reiter? ipse-,57e PUNCH PRESS MECHAMSM William 1R. Y Beatty, Hammond, lita. Application .Matth 2k3, i931. seri=t1NaQ52a53s 14cm-mis. ton-164487) 1 This invention relates to metal Working nia- Such an arrangement Ynecessitates the operator chinery, and more particularly to mechanism for v viewing'the work from the side instead o from moving and positioning the-material to` be opert the Vfront of the press. ated upon. I Where it is desired to punch both the Webs and 5 One of the objects of vthe invention is the prothe iiang'esofvthe lhars or beams it has been the. 6U vision of new and improved mechanism -for con- Vcommon.practice to punch either the web or the ducting the material to be operated upon to and flanges inone .passage ofthe work throughy the from the metal working machinery, together with press and then by proper .hoists remove 'the bar novel means for transferringand positioning the from the spacing taloleand .turn it to the posii 10 material to be operated upon. `V`tion to punch the flanges.j This is a-slow and G5 Another object of the invention is the provi'- lahoriousprocess and istattended with considersion of an new and improved punch press having vable diliculty in propelly positioning vthe har` on novel arrangement of the parts whereby the opthe table. j Y A Y n erator may inspectthe operation of the press on, The presentinvention seeks to eliminate thesev the material from a pointin front of` the press. difficulties .by the provision of a new and imo A further` object oiv the invention is the proproved press havingan open throat `whereby the visionof a new andiimproved punch press hav- 'operator can view the work from the front of ing novel means foroperating the tools. the pressduring the4 operation ofthe same, and

A still further object of the invention `is the. by the provision oa novel mechanism for. turn-` o provision of a material transferring member or ing `the Vbar through 90 after the flanges, -for ,7,5 unit for transferring material from onepunch example, have been punched-,and `properly `posipress table to another. tioning it on thetable for punching the 'Web ,or

Another object of the invention is the' provi- `vice versa; f

sion of a new and improved punch press having In the form of construction selected to illus- EL nevel spacing, and Supporting tab1es together trate one embodiment of` the invention, the ref- .80 with new and impreved means for rotating the ference character 10 designates a punch press, 11 Work and trensfelrrlgthe Seme fronton@ table vdesignates generally the spacing table, and 12 the I to the other, that is inexpensive to manufacture, Supporting table which )extends alongside .the

comparatively Simple in oorlstruotion, composed spacing table 1i. The vmeans Stor supporting the v of few moving parte, and that is effective in op- .workshown at Ythe 1eft;of zthe punch 1in Fig. 1,Y

eration. Y t and themeans forsupporting'the workalongside Other 4and further objects and advantages Will '.theispacingtabie at both'sides of the punch, see

appeal' from the following description taken in. Fig. 2, are each composedofa plurality ofindei connection lwith the-accompanying drawings, in pen'ent Supporting Stdstor SuppOrtngmem 90 'Whloh Y 5 g Y bers, hutfor convenience of description the for- F191 1S 'a flfont elevation o the demo? Shown merwill be'consideredasa portion of theV spacing .more 01" less dtaefemmetlallyj table and 4the Vlatter taken 'collectively will `te Fte. 21S a VleW-fieroof Y termed Ythesupporting table. The transfer or Fg 3 1 s o Seobonon lme 3.-'3of lg 2t bar'turner members areshown'at 13. The punch 95 Fig'. 4 15 -a troosvele Verlcal sec lon hroogh 'presscornprses'airame llwhichrestsona cona portion of the pun@ press @embase 15 andV estresantes-plate- 16 arida Fig. 5 is la rear elevationof the'presspwith parts broken away; head y1'7 supported by an arrn. 1 8 oveihangng n thefhed plate. For convenience of vdescription 455 gg s: the arm 18 will loefconsideredgasA extending tip- 100 Fie. 8A section on line 8%8

Vof

1,1;and Wardly and forwardly'from the base offwepss Fig. 9 is afsection on line 9-#9 of Fig. `8. m moldear thereof" Y Y It is common practice `in punch press-mecha- Slidaoly moooted in `the head- 17, SBQF; 4 nism, especially inthe heavy.` presses wherethe 1S mm 19 having. the rambolstef Plate 121 Se* irons, I-heams and the like are ,operated upon, able OQLSUDDOISZZ if'ttahed tothe plate `21 to employ a 'press with a 'closed throat. Because alldeah SqDI'OVQed with Sdablefgaple 23 of the tremendous pressures `developed: itjhas `f=l11d'24,S86Fg. iwhichfe adapted 'GOfbemOVBd heretofore been regarded as necessary to employ `into pOStOrl ,above the 'tools 251ml@ 26 T GSDGC- 110 this type'of press .in order to resist this pressure. f UVelY-g These DlaeS .are 'IIlOVCd by, levers 27- largestforms @commercial charme-1 bars ang1'e l'cured inthe usual mannerto its lower face. Suit- 105 Sincefthey are all Substantially alike, only one need be described.

The lever 27 is connected to a shaft 28 to which is rigidly connected an arm-29 which in turn is connected to the corresponding block'23 as by meansof the link 31. The tools and 26 are slidably mounted in the support 22 and when-it is desired that they should be employed to punch the material Abeneath the same, the corresponding block is 'slid' inwardly above theV tool to prevent it from sliding upwardly in the holder when the ram is forced downwardly by the toggle mechanism that will presently be described.

Suitable stripper members 32 and 33V are attached to the head and extend downwardly adjacent to the lowerV ends of theft'ools 25 forgstrip-l` ping the work from Ythe tools after 1the punching operation. Since the details of this portion of the punch press mechanism constitute :no part .of the present invention it is not thought necessary to further illustrate orrdescribe the same.

The device is so constructed that punchingr tools 22 may be arranged for a single bar on one of the tables, or they maybe so arranged 'that a bar on each table may be punched simultaneously,

` as indicatedk in Fig. 4 of the drawing. The press villustrated is designed for any typeof work, but

c during the operation of the machine.

isrespecially constructed for the punching of the heaviest commercial bars and beams, and in order that the pressure shall be equalized on the ram, suitable means are provided for insuring upper end piv'otally mounted on a shaft 36 car-I ried bythe head 17 and Yhaving its Ylower end pivotallyconnected to a shaft-37 carried by the ram 19- at the front thereof, and'y asimilar pair

lof toggle links

38 and 39 pivoted together as at f 41 atthe rear of the head 17, are employed. The

' inner ends tothe operating bar 42 which is adapttoggle members areV pivotally connected at their i ed to be operated by a link 43 pivotally connected -at its forward end vto the bar 42 Vand connected to aneccentric 44 at its rear end. v The eccentric 44 isA rotated by a .shaft 45 which 'in turn is operated by the motor 46 through a chain of. reducing

gears

47, 48, 49 and 571, see

. Figs. 4 and 5 of the drawings.

...front of theram may be made quite thin so that The toggle is so arranged that itis loperated to depress the ram when lit is pulled'towardwhat 'for convenience of description will be termed the rear of the machine. By means of this arrangement Vthe force foroperating the toggles will react on the head in anupward and a rearward direction whereby that portion of the head in it will present a minimum obstruction to the operator in watching the work from the front of vthe press during its operation. vThe frontfof the head may if desired be'provided with an opening having a closure 53 therefor. .y

Ther ramis preferably provided with recesses 'Q54 and 55 atv its upperend for receiving the upper pivot pins for the toggle members ,asV clearly shown in Fig. 4 of the drawings. A counterweight is preferably though nct necessarily provided for `the ram. As shown, a counterweight 56 slidably mounted on an arm'57 Ywhich inturnis pivoted to a support 58 is employed for this purposel The forward end of the arm 57V is connected to the` `moved into the path of said cam.

ram 19 by means of a link 59 and a threaded bolt 64 pivoted to said link at its upper end and detachably connected to a connecting bar 62 extending across the upper portion of the ram.

Suitable means are provided for assisting in elevating the ram. As shown, a compression spring 63 mounted on the upper end of the bolt 64`which extends through a cross member 62 on the ram 19 and through 4a stirrup 66 supportedfrorn the upper portion of the head is employed for this purpose.` By means of this arrangement the ram will be retained in its elevated position when the rdevice is not operating, and may move vertically relative to the weight 56 due to the tension of the spring 63.

The press is provided with the usual punching tool bolster 67 on which are mounted the die members' 68 for the punching tools.V If desired, the shaft 52 on which the gears 43 vand 49 are mounted may be provided with a fly wheel 69 and the shaft on which the eccentric 44 is mounted may be provided with a connecting rod counterbalance 7l, see Fig. 5.

Suitable clutch mechanism is provided vfor the press whereby the same may be disconnected from the motor or connected thereto when desired. In the construction shown, the parts are so arranged that the' clutch cannot be disconnected except 'when the ram 19 is at its upper limit of moveis operated by a treadle 77 through a link 78, a`

bell crank arm 79, a link 81,a lever 82, and an extensible link 83 which is connected to the outer end of the lever 82 and the arm 76.

In order thatthe machine may be controlled from anumber of positions, a plurality of treadles 77 are provided for operating the rod 78. The link 83 is formed in sections and the sections are telescopically connected, the same being provided with a spring 84 for yieldingly resisting the yextension vof the link.

The means'for preventing the disengagement of the clutch except when in a predetermined position,ithat is, when the ram is at its upper limit of travel, comprises' a cam 85 which is adapted to be engaged by a slidable finger 85 when the same is The finger is moved when the treadle 77 is operated. This is accomplished by a link 87 connected at its upper end to'said finger and at its lower end to a crank arm 88 rigidly connected to theshaft 89 on'which the bell crank arm 79 is mounted. A spring 91 having one end connected to the frame of the punch and its other` end connected to the bell crank 79 isadapted to normally hold the bell crank 79' inV its'upper position fordeclutching the mechanism. y

In the operation of-this featureof the device,

whenit is desired to declutch'the mechanism, the

pedal or'treadl'e 77 ris released, which will move the extensible' link 83 downwardly against the compression of the spring 84, but because ofthe movement of the link 83 the linklwill be forced lio nomme mammary, carrying with inthe'. engen sszwiiinh `will be moved-into the pathV of the Gant member and when the jaw` '74- rotates to. bringthet cam intoengagement with the nger 861 thev cam will force thea jaw tothe left in. Fig. 5,. thereby declutching the mechanism, when, the; ranr'is; in

-ei'evated position.

lin-the clutchingoperation, the-treadle 751.-' isf. de:- pressed; and this 'inatur-n. willI movethe yoke: 7.5 to

'the right in` Fig. 5i and simultaneously withdrawi- `such constructions..

Mounted on. the fraxneiv 91 isla carriage `desig'.-

natedi generally by the` reference character 9.4.

This carriage may be of the usual. or; any' well known.- construction` and is4 provided with: grip jawsv 95; for engaging the ends of a.bar-,.beamor other Work that isbeing'operatedupon.. The carriage-is moved backwardly and: forwardly along the table bya handi wheell 96 having thegea-r 97 thereon, which is adapted to; engage aY rack. 98` on the table. Since thedetails-.ofthis portion ofthe carriage constitute no` part of the presentinven'- tion, it is not thought necessary.- tofurther'illustrate-or describe'the same; v.

As-shown on the-drawings.' a single carriage is employed; The-spacing table-.111Tina-yA beconsid- ,eredas extending to each` side` of- ,thepress and onthe side oppositeV the` pressfrom; the carriage the table-may comprise-the supportsior` standards 99, each. having: the supporting rollers 101-v a-t their upper ends..

1n` thepunchingof` large commercial. barsf, as for instance -bea-ms, thesame; are placed.- onthe spacing table with the Webs-lof thebars-resting. on the-roller supports andthe-bar isarnoved along. the table bythecarriage 94 through; the punching press inthe-usual manner. f

Suitable means areprovided for turning the bar through so-thatafiter the-.webs have been punched the flanges may-'alsowbe-punched., Any suitable mechanisme maybe.- employed for; this purpose.. In the form of constructionselected: to illustrate one embodiment of` the invention the mechanism: shown iri- Fig. 8 is. employed. for. this purpose.

A pluralityv oftransfer or barturning members l-3- are employed, located at suitable distances along the spacing table. VSince-thesefdevioesf are all the same` in; construction, only' one need bedescribed. As-` showm. this. membercomprisesr a. pair of'supports 102 and 103- between which attheir upper endsiisi-pivotallysupported a geared; quadrant- 1.04'. A-

pair o. cylinders

105 and 106 are mounted on or rigidly-'connected' to the quadrant 104.

Pistons

107 and 108 are mounted in these cylinders and rigidly attached to their upper ends is the bar support 109, see

Fig. 8. The quadrant 104 is operated by a pinion 104 on the shaft 120 which extends beneath all the'bar turning members 13 for operating them simultaneously. The shaft is operated by suitable means as' the motor 130 through a worm drive 140, see Fig. 2.

Slidably mounted on this support is a gauge or guide 110 as more clearly shown in Figs. 8

and 9 of the drawings. This guide'is held in adjusted position by the spring-pressed pin 111 which is adapted to engage suitable recesses 112 formed along: the. upper surface. ofthe supportr 1109i. The. pistons. y10.57l and 108. are adapted to be forced upwardlyl'byf steam or compressed air which is. introduced through-.suitable.conduits 113; at the bottom offthe.- cylinders-i.

The supporting table mOunt'edaaIQngSide the spacing.: tableandi comprises a. plurality off. hollow supporting sta-nds'. designated,A generally byI the reference. character` m4 seel` Eig; "Tf, in. eachV of which is. telescopically mounted; af standardr 11-5l carrying-.a yoke 11.6111 which is mounted a sup- Vporting roller: 11h71.. The'finneriarmiof; the yoke: 116 isi pref erably.` ext-ended antie'tri'ctioniroller 111%8. is: mountedf thereon for` engaging the flange of the` bar: 1139i fon guiding: thi-:esame along; the

table: as clearly' shown-in Figi. .'f of they drawings. The standards; 1115 are. adapted to bef adjusted uertinailyfsimultaneously.- by aishaft 121 vwhich ex'- tends along the.` supporting: table.. This shatt l has suitable: gears;r 1221 which are` adaptedto .engage rack` teeth@ 12-3; on.- theistandards 115'.. Thershatt 121 is adapted: tobe operated;` any Vsuitable manner as bymeans oft ai motor: 124xthrough aY worm drive.- l25fon in;v any other-suitable: manner.

The carriage; 94iisprovidediwit-h meansffor'conducting the work along; the.- supporting: table.- In

the form. of construction. shoWI-L. see Fig. 2,. the

carriage isi providedz, with: an outwardly-- extending: anni. 126 `tjo1whichz is.; rigidly connected a head operate aV rack and; pininrrassociated. with. said headV and arm; 'I3-he lower endA of the arm is adapted to'` have attached. thereto a. link: 131,

thef forward end of. whichy is; biturcated as: shown at. 132 in; Figs; 2v andi 3, theA furcations: being provided withfsetscrews 13'3 and 134'y for attaching; thel same. vtotheK web? ofi au bar or 'Y beam that is being operated upon; Theiorwardend' ofthe link 13:1-` is-adaptedto.- be raisedY and'Y lowered so that thesafmefmay-be attachedtdthe central line ofi-the.- bea-1n; to insurevaccuracy in: positioning the holes; in: oase it. becomes' necessary'` to#` turn the;y beam: for punchingtheiV top: a-nges after thebottom ilanges ,ha-ve., been, punched,v or' vice versa. l

' Init-he opera-tioni-ofi` the.: device..` assuming; that 'the I.beamv is supported on the auxiliary table desired to.: movel the:v same; onf to the spacing. table and turn the bea-mithroughan:A ang-leof. 90.9 ,so

that the web' will-l rest, oni-thef--rollers 101,' ,as`

indicated=.ina'dottedilinesin!Fig; 'tithe ban turning-"member is operated; to turrrthe `bar support 109- tof a verticalil positionfas; shown' in- Fig.. 2, after which the:- pistons 107i arefforced outwardly to.' bring the guidel or gauge v110' beneath the bar.,` ait-eli which the quadrant. 10.4 vis turned-to .a traveling carriage on said table, jaws carried byy said carriage and-adapted to engage a flanged beam, means for operating said carriage for moving said beam along one set of said rollers, and means for rotating said beam through ninety degrees and depositing the same on the other set of rollers.

Cil

`elevating said `beam from one set of said rollers,

giving the same a partial rotation and depositing the same on the other set of rollers.

3. In metal working mechanism, a press, punching tools carried by said press, a spacing table, a supporting table alongside of said spac- -ing table, a carriage for conducting material along said tables to and' from said press, means for transferring said materialr from one table to the other and means for operating said punching tools for perforating said material, said press having an open throat whereby the operator. may see the operation of thev tools from` either the side or front of said press.

4. In combination, a punch pressrhaving a vertically moving head,'a toggle at each end of said head for operating the same, a pair oi tables for supporting material to be worked upon, means for elevating one of said tables to the exclusion of the other, means for moving said material toward said press to be operated upon and for removing the material vfrom said press, said press having an open throat-whereby 'the' punching loperations will be visible to said operator from a position in front of said press.Y

5. In combination, a punch press, a spacing table having rollers thereon for supporting a metallic bar on its side, a supporting table having rollers thereon for supporting said bar in upright position, and means for elevating one of ysaid tables and for transferring. said bar laterally from one table to the other.

6. In metalworking mechanism,a punch press comprising a frame, a bed plate, an arm extending upwardly and outwardly from said plate, a head supported by said arm Vabove said plate said arm being supported solely from its base at the rear for forming an yunobstructed open throat for said press, a ram slidably mounted in said head, a set of toggle links at the rear and a set at the front of said ram, a drawbar secured to said links, and means for pulling said bar' rearwardly for straightening said links for lowering said ram and tools carried by said ram.

7. In metal workingmechanism a punch press, a frame. a bed plate, a head supported by said frame above said bed plate and in 'spaced-relation thereto and forming therewith Van open throat, a ram slidablyVV mounted in the forward end of said head, means engaging said head at a plurality of points along the same for raising and lowering the rain, and means for supporting ya pair of hanged beams betweensaid head and -head for simultaneously punching holes in the web of one beam and the ilang'es of the other.

8. In metal working mechanism, a beam turning device comprising astand, a quadrant pivoted to said stand, a pinion geared to-saidquadrant, a beam support movable with said quadrant, means Afor raising and lowering said support, and means including said quadrant. and pinion for rotating said support through at least 90 degrees.

v9. In a metal working device, beam turning mechanism comprising a plurality of stands, beam supports movably mounted on said stands, and means for raising and lowering said supports and for turningthe same on said stands.

10. In metal working mechanism, a spacing table for supporting beams, supporting means alongside said table for supporting beams, and beam turning mechanism for transferring a beam from said table to said supporting means and vice versa,` said mechanism comprising beam supporting means and means for raising, lowering and for turning said supporting means.

1l- In metal working mechanism, spacing and supporting tables for supporting metal beams,

means for moving said beams longitudinally along said tables, and power operated means for rotating said beams and for transferring said beams from one of said tables to the other.

12. In metal working mechanism, a punch,

' spacing and supporting tables for said punch, said tables extending to opposite sides of said punch, means for simultaneously moving beams along saidtables through said punch, means for raising and lowering said supporting table, and means for transferring beams from one table to the other including means for turning said beam.

13. Inv metal working mechanism, a spacing table for supporti-ng metal members to be operated upon, a carriage on said table for moving said members along said table, a supporting table alongside said'spacing table, an outrigger arm on said carriage, and vertically adjustable means Vcarried by said arm and movable with said carriage for engaging a beam for moving the same along said supporting table.

14. In a punch press mechanism, a base member, an arm extending upwardly and forwardly from said base member and having a head overhanging said bed plate for forming an open throat, a ram slidably mounted in said head, tog- Ygle members flexing forwardly and engaging a plurality of points along said head from front to rear, eccentric mechanism, a pull rod connected to said members and adapted to be moved rearwardly for straightening said toggle members for flowering said ram, tools carried by said head,

and means for turning and moving beams beneath said tools for punching said beams in each of their positions.

W. R. BEATTY.