US2610388A - Machine for operating on strip stock - Google Patents

Description

Sept. 16, 1952 F. KOCH MACHINE FOR OPERATING ON STRIP STOCK 2 SHEETS-SHEET 1 INVENTOR. Feaaf/v/ck Ao Ch BY m y, frdfiA f) Filed Aug. 18, 1950 Sept. 16, 1952 F. KOCH MACHINE FOR OPERATING ON STRIP STOCK 2 Si-lEETS-Sl-IEE'I 2 Filed Aug. 18, 1950 INVENTOR. FREDERICK A OCH BY 8 Patented se sis, 952

MACHINE'FOB QPERA JNQTDNTSTR PJ s'rocK FrederickKoch, Sparta,- N; J .,'.assignor to ,Todfli Rutherford, ,N. J as trustpew;

Application August 18, 1950; SerialiNg; 180,131" 1 '1, c1aimt-,. (01. 29-32) The inventiondisclosed in this patent appl-ication--concerns certain improvements in so-' called -Mu1ti-Slidemachines;

Machines known under'this name'are characterized by havinga bed supportingvarious ma chine tool elements-operated by cams and eccentrics on shafts gearedtogether about the bed,

substantially asshown in Borton'Patent 1383,513

of Gctober 18519325 Basically these machine tools are punch press devices "mounted in properly cooperating relation n*the bed and actuated in proper-1y synchronized order by -the -cams and eccentrics on the surrounding shafts p With such-an organization it has been possibleto perform'agreat variety of piercing, punching; blanking; forming, swagin'g, drawing; riveting; staking; bending;- cutting and assembling operations; 7

Some limitations have developed, however, and

1 ture; howeverymaybe mo itis'with 'a--view'to; overcoming those limitations that'the present invention has been devised:

Following basic principles of press'joperation, Multiaslidei. machines have been built with press units made up" of companion ram and bolster elements. carrying. the necessary die sets. The rams have been mounted on the front of the bed so as to beoperated by-the -front cam shaft,

and the bolsters at the back, braced-lto-taketheload by an; tupstanding-g; abutment; irail extending along the rear edge of the bed,

withmhissarrangement operations are directed towardftheback of the strip so that bendin sand forming wilhb'e to that side of ,the..strip.,andiany biurrs will beleftat the back'andscrap be knocked outfattheback'of the strip. 7

. Vhil these limiting factorsordinarily arelnot objectionable, there are occasions.wheredtwould be highly desirable to work in from the back of the strip or possibly tosimultaneously work in frorrnboth sides of the strip.-

Accordingly, it is a generaLpu-rpose of .the presem, .-inv.ention to so revise and re-design these Multi-Slide machines .that they, .may operate with equal facility on either 'or both sides of the stock which" they handle. and to accomplish 'this in a manner and with structure utilizing the best principles ofthis machine.

More specific objects of the invention are to simplify, stifien and strengthen the bed structure and to so arrange the parts that they maybe quickly and easily mounted on the bed to operate from either the front or the back of the machine; to provide a symmetrical form of structure and to accomplish an equalizing and balancing of power as applied by ethic--shafts.- at the a-difierent sides of the'machine;

A special-important object of theinventi'onz is to enable the productionof more complicated or: more extensively worked pieces than'has heretofore beenpossible onthese machines, for example; to effect deeper-drawing orlonger or more= varied bending operations:

Other special objects and the novel-features of i invention through which all such-"purposes are attained areset forth or will" appear in the-course" ofthe fol-lowing specificatiom The '-drawingsaccompanying -and-forming =part of the specification are ;-illustrati-ve "ofa preseh-t;

commercial embodiment of the invention;- Struc ,d d'ee =h a within the true intent :and broadjscope of them-'- ventiorr as hereinafter-defined and claimed-J Fig; 1 in the, drawings-- is ageneral op l s-1 view of one-0fthe 1 new- Multi slidef machines ha r th t r t kli f e f tu ed: t e present invention:

Fig.2 is a brokentransverse cross sectionalview of.;th e bed of the machine aslonsubstantially the planeof line 2'2 of Fig.' 1;

Fig, 3 i s'an enlarged brok n'c ectimlaly w of "t e ma ne. a .on ;su st nt th p ane. o

line ,3-'-'-3 of Fig; 1, showing a-ram operatingfrom theback ofth'e machine;

-- Fig-lie isa .s m ar..v w.ne ubstah ia iitbe plane'ljnf line g tof lifiglg showin companion; rams 'simultaneously op'erating, from. both'jsides'. of

the machin'e.

' In the ,present in -vention the. stockis indon.-

" a ,center ,linejIoi/ter. thegbed 6 andthelattenlals,

shown,,,in..,FigM'IZMisMflat and substantially-s metrical...wi th,plairn. fiat. side .1 "andsfi .and,..,

undercut anchorage slots 5 vand.lll..ir1' the'.top at,

equaLdist'ances. from the center line Thelcens ter groove 1 i is suitably .shapedto accommodate slides .whichmay be operatedin .fromone'or both endsof themachine.

The .bed carries, at the four; .;corner,s ,.:j6urna1 b k ,h --l 14v andend shafts] 5,. HLcQnnectedlat adjoinin finds by gears .in the .gearboxes ,.I 1; Power pplied. tothis; ring .ci shaftjing'.u sually.v through gearing bearings "l2 llfor. the rant and toLshaft 1 5r Fig. 1 illustrates in which two rams are operated from the front shaft and two from the back shaft and with intermediate rams directly opposite and directly.

cooperating. i The front rams are designated l8 and J9 and the back rams 20 and 2|.

a special tooling arran d?i 121;.

bolts and nuts 24, 25, by which they may be.

secured down on the bed in the same manner as the ram bases.

The intermediate rams I9, 20, are shown as similarly secured, Fig. 4, directly opposite so as to effect drawing, bending, forming or other operations possibly double the extent that might be acv :complished with a single ram.

In this coacting relation of the two rams they may be timed so as to one operate in advance of or simultaneously with the other and so as at the end of the cycle, to leave the stock substantially in the center line, requiring no stripper action to separate the stock from the dies.

The cams for actuating the ram slides are indicated at 29, 30, 3|, 32, these being designed to efiectuate desired timing and operation of the rockers 33, 34, 35, 36, linked by toggles 37, 38, 39, 40, with the respective slides. These cams may be of the split construction used on Multi-Slide machines, in accordance with Borton Patent 2,161,243 of June 6, 1939, and which by reason of such split construction may be readily changed from one shaft to the other.

The rams and bolsters are tied together in fixed relation over the bed by tie bars or bridges designated M, 42, 43, the bars 4| and 43 connecting the ram bases and companion bolsters, and the bar 42 connecting opposing ram bases.

In all instances, therefore, the companion press members are locked together in fixed relationship.

. In the case of the opposed rams the loads may be equally or substantially equally balanced and in other instances the loads on the cam shafts at opposite sides of the machine may be substantially balanced. The power applied by the shafts may thus be more or less equally distributed about the'bed to create free, smooth running operating conditions without undue loading at any particular point. This distribution of power enables faster operation and hence higher production.

The complete interchangeability of ram and bolster bases on the bed enables the machine to be quickly set up for accomplishing greater variety of operations and greater extent of movement for bending, forming, embossing, or the like.

The bedbeing of substantially symmetrical design, can be produced at lower cost and be actually stronger, at no greater and possibly less weight. -The stock, advanced over the center of the bed, may be worked both ways or, if need be, worked to double the extent to one side. Burrs may belocated either to one or to both sides, and the same asto any scrap that may be struck out of the strip. Stampings of more or less complicated form may beproduced by working the stock alternately from opposite sides or simultaneously by rams coacting from opposite sides of the machine. f

The many advantages attained by this invention do not interfere in any way with the operations which may be performed about the stripper plunger 44, Fig. l, by means of the cooperating former slides 45, 46, 41, 48.

What is claimed is:

A metal working machine for operating on straight lengths'of strip stock, comprising a machine tool bed substantially symmetrical to opposite sides of a central longitudinal straight stock feed line, said bed being substantially flat on top and having corresponding substantially straight, fiat, parallel longitudinal sides spaced the same distance from said central stock feed line and having corresponding parallel, longitudinal ram positioning grooves in the top of the same spaced the same distance to opposite sides of said central feed line, parallel cam shafts journaled at opposite sides of said bed and spaced the same distance to opposite sides of said central feed line, said shafts being located in the same relation with respect to the top of the bed and with respect to the sides of the bed and geared to rotate in unison, opposed rams at opposite sides of the stock feed line and operating in opposite directions against opposite sides of the stock, said oppositely acting rams having bases removably mounted on the bed in longitudinally adjustable relation at opposite sides of the central stock feed line, keys on said ram bases engaged in said positioning grooves in the bed, means for removably securing said ram bases keyed on the bed in the opposing relation described at different positions in the length of the bed, said ram bases being re versible end-for-end and interchangeably mountable on the bed on opposite sides of the central stock feed line, whereby either ram may be used at either side of the stock feed line and the stock be maintained in substantially a straight line, and cams for operating said rams interchangeablyengageable on said cam shafts for actuatingsaid rams in cooperative timed relation, mounted as described at either side of saidcentralstraight stock feed line.

FREDERICK KOCH.

REFERENCES CITED The following references are of record in the file of this patent:

' UNITED STATES PATENTS OTHER REFERENCES Machinery, vol. 55, No. 9, May 1949, pp. to 151;

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