US2364735A - Metalworking machine - Google Patents

Description

Dec. 12, 1944.

J. J. MCGLON; ETAL METAL WORKING MACHINE Original Filed Nov. 21, 1942 4 Sheets-Sheet l Dec. 12, 1944. J J. McGLONE E1-AL '2,364,735

` METAL WORKING MACHINE Original Filed Nov. 21, 1942 4 Sheets-Sheet 2 Dec' 12 1944- J. J. MCG-LONE Erm., 2,364,735

METAL WORKING MACHINE Original Filed Nov. 21, 1942 4 Sheets-Sheet 5 Dec. 12, 1944. J, 1 MCGLQNE ETAL 2,364,735 i METAL WORKING MACHINE Original Filed Noir. 2l, 1942 4 Sheets-Shee't 4 Patented Dec. 12, 1944 son, Chicago, Ill., assignors tovWhiting Corporation, Harvey, Ill., a corporation of Illinois Original application November 21, 1942, Serial No.

466,514.' Divided and this application September 3, 1943, Serial No. 501,114 l Claims. ,(Cl. 153-28) The present invention relates generally to machines for working metal in the form of sheets or plates. More particularly the invention relates to that type of metal working machine which serves to carry out or effect an osetting operation and embodies: (1) a C-shaped housing and supporting structure; (2) a lower shaft which is disposed at the outer extremity or end of the bottom arm of the structure and extends upwardly and outwardly at approximately an angle of 45 with respect to the horizontal, a vertically movable head at the outer end ofthe top arm of the structure; (3) an .upper shaft on the head which extends inwardly and downwardly at Vsubstantially a 45 angle and has its inner end disposed normally over and adjacent the outer end I of the lower shaft; (4) power driven mechanism including gearing and drive shafts within the structure for conjointly driving the upper and lower shafts in opposite directions; (5) a pair of complemental, coacting offsetting rolls which are mounted on the upper and lower shafts, respectively; and (6) an offsetting gauge attachment which is in the form of a rollerequipped bracket, is adapted to gauge or determine the position of the offset or jog with respect to theedges of the work pieces, and is mounted on the bottom arm of the housing and supporting structure so that it may be adjusted to its desired gauging position relatively to the offsetting rolls.

One object of the invention is to provide a metal working machine of this type which is an improvement upon, and has certain advantages over, previously designed machines for the same purpose, and is characterized bythe fact that it whichV like numerals of reference denote corresponding parts throughout the severalviews:

Figurel is a fragmentary side View of a metal Working machine embodying the invention, showing theimproved offsetting gauge attachment in place on the novel mount;

. r Figure 2 is a plan view of Athe machine, parts on the line 3--3 of Figurel and showing the'offsetting gauge.attachment in its operativeposition on the mount;

Figure 4 is an enlarged top or plan view showing in detail the construction and-design of the i oifse'tting gauge attachment;

Figure 5 is an enlarged side View of said offsetting gauge attachment; l

Figure 6- is a vertical transverse section on the line 6-6 of Figure 5; and Figure '7 is a fragmentary perspective of the front portion of the machine showing in detail the construction and arrangementofk the offsetn ting gauge attachment.

.The machinewhich is illustrated in the drawings constitutes the preferred form or embodi# ment of the invention. It is adapted to carry out or effect offsetting of pieces `of sheet or plate metal and includes a pairl of complemental coacting offsetting rolls 8' and 9, an offsetting gauge attachment I0, and a mount II for the attachincludes a novel mount whereby the offsetting gauge attachment is supported so that it may be quickly and readily adjusted into any desired gauging position with respect to the offsetting rolls.

Another object of the invention `is to provide in connection with a metal working machine of the type under consideration, yan offsetting gauge attachment of new and improved form.

Other objects of the invention and the various advantages and characteristics .of the present metal working machine willbe apparent;V from a consideration of the following detailed description.

The invention consists in the several novel features which are hereinafter set forth' and are more particularly defined by claims at the conclusion hereof.

In the drawings which accompany and form a part of this specification or disclosure and in ment. The offsetting rolls 8 and 9 are adapted; as hereinafter described, to be used withthe offsetting gauge attachment I 0 to form offsets or jogs in metallic work pieces.

The machine, with the exception of the attachment and the mount Il'therefor, is of conventional or standard construction and comprisesa C-shaped combined housing `and supporting structure I2, a lower roll carrying shaft I3, al

I vertically movable head I4, an upper roll carrying shaft I5on the head, and mechanism `for conjointly driving the two roll carrying shafts The combined housing and supporting structure comprises a hollow bottom arm I6, a hollow top larm I1 and a hollow connecting part I8 and is preferably in the form of a one-piece casting. The bottom arm I6 of the structure has a flat top surfacel I9 and is so designed or `constructed that the bottom portion thereof serves as a'base for supporting the machine in an upright position on the floor or 'foundation' of the `establishment in which the machine is used.v "The top arm of the combined housing and supporting structure'overlies, and is spaced' va substantial distance from, the bottom arm I6 and is connected to the latter by way of the connecting part I8. The lower roll carrying shaft I3 is journalled in a bearing 20 at the outer extremity or end of thebottom arm'l of the structure I2 and extends upwardly and outwardly at an angle of approximately '45 with respect to the horizontal. The lower end of this shaft is housed within the bottom arm I6 of the structure I2 and the upper end is exposed and is adapted to carry the offsetting roll 8. The head I4 carries the upper shaft I5 and overlies the upper or outer end of the lower shaft I3. It ismounte'dfor vertical sliding movement in a guideway 2| in the outer extremity or end of the'top arm I'I and is adapted to be raised or lowered by way' of an upstanding screwA shaft 22. This screw shaft, as

shown in Figure 1, extends through a verticaldirection the head, together Ywith the upper shaft I5, slides downwards towards the outer end of the bottom arm I6 of the structure I2 and when the hand wheel is reversely rotated Athe head and the upper shaft are caused to sli-de upwards in a rectilinear course. 'Ihe upper shaft I 5 is journalled in a bearing'25 on the lower portion of the vertically movable head I4 and extends downwardly and inwards at substantially a 45 with. Adjustment of the key is effected by way of mechanism including a hand lever 4I. The clutch controlled gearing 32 is in they form'of a loose pinion 42 on the rear end of the driven shaft 28 and a xed gear 43 on the rear end of the driving shaft 35. The clutch for controlling such gearing comprises a driving clutch member 44 which is slidably and drivably mounted on the rear extremity of the driven shaft 28 and a driven `clutch member 45 which is in opposed relation with the clutch member 44 and is fixed to the pinl ion 42 of the gearing 32. The clutch member 44 to bring into operative position the desired pair of gears of 'the change speed gearing 29. Thereafter the' electric motor 25 is started and this resultsin drive of the driven shaft 28 from the drive shaft 21 through the medium of the change speed gearing 29. After the motor 25 has reached its normal speed rthe clutch member 44 is shifted into engagement with the clutch member 45 by manipulation of the hand lever 45. Upon engagement of the .two clutch members the driving shafts Strand 3| operate conjointly to drive the roll carrying shafts I5 and I3, respectively. The gearing 32 and the gear wvtrain 33 are so designed that the roll carrying shaft I5 is driven in .a clockwise direction when viewed from the front of the machine and the lower roll carangle, as shown in Figure 1.Y 'The lower or inner y end of the upper shaft is adapted to carry the oisetting roll 9. The mechanism for conjointly driving the two .shafts I3 rand I`5-comp'rises 'an electric motor 25 on the upper rear corner of the combined housing and supporting. structure I2,

'a horizontally extending'drive shaft l2'I in the upper rear portion of the structure I2, a horizontally extending driven shaft .28 in parallelrelation with the drive shaft 21, change speed gearing 29 between the two last mentioned shafts, a horizontally extendingy driving shaft .31) in the top arm I'I of the structure I2, ya horizontal driving shaft 3| in the bottom arm I4, clutch controlled gearing 32 for driving the drive shaft 30 from the driven shaft 28, a gear trai-n 33 for driving the driving shaft 3| from the driving shaft 30, a pair vof meshing bevel gears y34 and 35 between the front end of the driving Ashaft 30 and the upper outer end of the upper roll carrying shaft I5 for driving the latter shaft .fromthe f The Aelectric motor 26 is -driving gears on the two last mentioned shafts Iand is controlled by a key (not shown) which is slidably mounted in a horizontal keyway 40 in the driven. shaft 28 land is adapted, in response tov longitudinal adjustment thereof, to lock one of the gears on Athe drivenshaft 28 for drive by the gear on the driving shaft that is in mesh thererying shaft I3 is driven ina counterclockwise di- 'The mount II rserves as a medium or instr-ume'ntality for adiustably supporting the oifsetting vgauge attachment l0, and `consists of a guide rod 41.. The latter is located at the so-called feed side of the machine, that is, the side vfrom which the work. pieces are fed in connection with an offsetting operation` The rear end of said guide rod/4l is mounted in a horizontal, open-ended socket 49 in a horizontally elongated member 55. The latter has a fiat upper portion 'which underlies, and is connected to, the horizontal leg of an angle bracket 5I. The vertical leg of such angle bracket lits against, and is connected t0, the connecting part I3 of the combined housing and supporting structure I2. Set screws 52 are disposed in threaded holesin the outer side portion of the member 5B and serve releasably to hold the rear` endcf; the guide rod 4l in the socket '49. The frontend of the guide rod 41 fits within a horizontal, open-ended socket 53 in one end of a horizontally elongated bracket 54 and is releasably secured in place by means of a set screw 55 which extends through the outer side portion of said one end of the last mentioned bracket. The central portion of the bracket 54 fits against, and is connected to, the outer or front end of the bottom arm I6 of the structure I2.; The guide rod 41 has a dat 5B on the bottom thereof and is .normally rigidly held in placeby way of the set screws 5,2 and 55,- When the set screws Vare loosened the guide rod 4'I may be removed from the sockets 49 and 53 by sliding .it forwards beyond the bracket 54. The socket `53 in the bracket 54 A`is axially aligned with -the socket 49 in the member 50, l

The oifsetting rolls 8 and 9 are Aremovably mo'unted on their respective shafts I5 and I3 in order vthat different types rif-rolls, such for .example as fianging rolls or slitting rolls, may be substituted vtherefor when it is desired to use the machine to effect different types of metal working operations. The periphery of the roll 8 has a 45 taperl in the direction of the inner lower end of the shaft I5. The roll 9 is of composite character and comprises an outer part 9a and an inner partQb. The Peripheries of these two parts have a 45 taper, as shown in Figure 5. The plane of the periphery of the inner part 9b is insetwith respect to the plane of the periphery of the outer part 9a of the roll 9 with the result that there is a step 9c between the two parts. When the two offsetting rolls 8 and 9 are mounted on the shafts I5 and I3, respectively, and the two shafts are properly adjusted, one relatively to the other, the roll 8 is disposed over the inner part 9b of the roll 9 directly inwards of the step 9c and the two rolls are so arranged that during drive thereof they coact to effect an offset or jog in any workpiece that is fed between them from the feed side ofthe machine Ato the discharge side.

The offsetting gauge attachment II serves as a means for gauging or determining the position of the offset or jog with respect to the edges of the work pieces that are fedbetween the rolls 8 and 9. It is mounted removably on the guide rod 41 of the mount II and comprises a two piece cast metal bracket 51 and a roller 58. The bracket consists of a verticallyelongated upper piece 59 and a bottom piece 60. The lower end of the upper piece has a downwardly facing groove 6I of semi-circular cross section for receiving the top portion of the guide rod 41. The bottom piece 60 o-f the bracket 51 is removably connected to the lower end of the upper piece 59 by bolts 60a and has an upwardly facing groove 62 of semi-circular cross section for receiving vthe bottom portion of the guide rod 41. The two grooves 6I and 62 define a cylindrical socket which permits the offsetting gauge attachment I to be slid longitudinally of the guide rod 41. Two set screws 63 extend through threaded holes in the central portion of the bottom piece 60 of the bracket 51 and serve, when tightened,l to lock the bracket against displacement relatively to the guide rod 41. The upper or inner ends of theser two set screws are adapted to engage the flat 56 on the bottom portion of the guide rod 41, as shown in Figure 6 of the drawings. The upper end of the upper piece v59 of the bracket is in the,

form of a pair of right angle webs, one of which is on the inside of the bracket and extends lengthwise of the bottom arm I6 of the combined housing and supporting structure I2 and the other of which is joined to, and projects outwardly from, the front margin of'thetone web and extends at right angles to the guide rod 41. The inner web is provided with a pair of vertically spaced, inwardly extending, integral ears 64 and these have vertically aligned circular holes 65.- The roller 58 of the attachment I8 has a cylindrical outer periphery and is disposed between the ears 64. It is confined against vertical displacement by the ears and is rotatably mounted on a vertically extending cylindrical pin 66. The ends of the pin nt within the holes 65 in the ears 64 and are locked in place by way of set screws or any other suitable means. The roller 58 is free to rotate about the pin 66 and serves as a stop or guide` for the inner edges of the work pieces that are fed between .the complemental coacting offsetting rolls 8 and 9 (see Figures 4 and 5). The position of the roller 58 with respect to the offsetting rolls gauges or determines the distance of the offsets or jogs from the inner edges ofA the work pieces. By

adjusting the attachment I0 rearwards on the is desired Ito adjust the attachment I0 the set screws 63 arereleased and theroller equipped bracket is sliiftedi or slid to the desired position. Thereafter the set screws 63 are vtightened so as to lock or fix the attachment VIll in place. The bracket 51 is so designed that the roller 58 prof jects above and below the operative portionsof theoffsetting rolls 8 and 9. When the attachment is in its operative position the roller 58 is located on the feed side of the machine but in closeproximity to thetwo offsetting rolls. In order to hold the attachment in an uprightposition and against tilting in the direction of the bottom arm I6 of the combined housing and supure 5, is`located outwards of the two offsetting rolls and is carried by a bracket 10 which is re,-

movably secured to the vertically movable head I4.`

When it is desired to provide offsets or jogs in sheet or plate metal work pieces the rattache,

ment Ill is adjusted or manipulated to the desired position on the guide rod 41 and the mae chine is then started by connecting the two offsetting rolls for drive by the electric ,motor 26.

Thereafter the work pieces ,are successively fed past the roller 58 of the attachment I8 and between the two offsetting rolls 8 and 9. During passage of the pieces past the two rolls the latter, in conjunction withthe hold-down roller 69, form the desired offsetsor jogs in the pieces. The offsetting gauge attachment I0 may be removed either vby withdrawing the bolts 60a, for clamping together `the upper and bottom pieces of the bracket `51 ory by loosening the set screws 63 and then sliding the guide rod 41 forwards so as to permit the bracket to be slid rearwards out of engagement therewith. But a single attachment I0 need be employed for the reason that in connection with an offsetting operation the direction of rotation of the offsetting rolls is such that the work piece tends `to swing in the direction of the roller 58.

The herein described metal working machine is highly eilicientin operation due to the spe.- cic design and arrangement of the offsetting gauge attachment Ill and its'mount II. -The mount permits of ready adjustment and removal of the attachment. `The attachment is simple inconstruction and hencemay be produced at a low c'ost.l

. The invention is not to be understood as' restricted to the details set forth since these may be modified within the scope of the appended Having thus described the invention what We.`

claim asinew and'desire to secure by Letters Patent is:

1. In a metal Worlcing `machine of the char-` for conjointly driving the shafts in opposite di' rections, of a horizontal guide rod mounted on the structure and positioned outwards of and along one side of said bottom arm of the structure, and an offsetting gauge attachment comprising an upstanding bracket having at the lower end thereof an open-ended' socket in surrounding and slidable relation with the guide rod and provided at itsupper end with a pair of vertically spaced laterally and inwardly extending integral ears, a vertical pin having the ends thereof mounted in the ears, and a cylindrical roller mounted on the intermediate portion of Vthe pin and adapted to engage certain edges of the work pieces in connection with the feed of such pieces between the oifsetting rolls.

2. In a metal working machine of the charac`- ter described, the combination with a C-shaped supporting structure, a pair of shafts mounted one at the outer end of the bottom arm of the rstructure the other at the outer end of rthe top arm of said structure', and having certain ends thereof disposed adjacent one another and provided with complemental coacting offsetting rolls,

and power driven mechanism for conjointly drivoffsetting gauge attachment comprising a vertically elongated bracket having at its lower end a cylindrical open-ended socket for slidably receiving the guide rod, and at its upper. end an inwardly disposed elementrfor engaging certain edges of the work pieces in connection with feed of such pieces between the offsetting rolls, and provided at the inner side thereof with aver- Y tically extending screw adapted to engage the top surface of said bottom arm of the structure and also adjustably to limit inward swinging of the bracket relatively to the guide rod.

3. In a metal working machine of the character described, the combination with a (.2 shaped supporting structure, a pair of shafts mounted one at the outer end of the bottom arm of the structure and the other for vertical adjustment at the outer end of the top arm of said structuraand having certain ends thereof disposed adjacent one another and provided with complemental coacting offsetting rolls, and power driven mechanism for conjointly driving the shafts in opposite directions, of a cylindrical horizontal guide rod mounted on the structure so that it extends `outwards of, and along one side of, the bottom arm of the structure, and an adjustable oisetting gauge attachment comprising a vertically elongated bracket having at its lower end a cylindrical open-ended socket for slidably receiving the guide rod and at its upper end a vertical roller for engaging certain edges of the work pieces in connection with feed of such pieces between the offsetting rolls, and provided at the inner side thereof with a vertically extending screw adapted to engage the top surface of said bottom arm 'and also adjustably to limit inward swinging of the bracket relatively to the guide rod.

4. In a metal working machine of the character described, the combination with a C-shaped supportingA structure, a .pair of shafts mounted one at the outer end of the bottom arm lof the structure andthe other for vertical adjustment at theputer end of the top arm of said structure, and having certain ends thereof disposed adjacent one another and provided with complemental coacting offsetting rolls, and power driven mechanism for conjointly driving the shafts in. opposite directions, ofv a cylindrical horizontal guide rod mounted on the structure so that it extends outwards of, and along one side of,` the bottom arm of the structure, and an adjustable offsetting gauge attachment comprising a vertically elongated bracket having at its lower end a cylindrical open-ended socket Vfor slidably receiving the guide rod and at its up per end a pair of vertically spaced laterally and inwardly extending ears, together with a vertical roller disposed between the ears and adapted to engage certain edges of the work pieces n connection with feed of such pieces between the- 'oifsetting rolls, and a vertically extending screw carried by the lower-most ear and adapted to engage the top surface of said bottom arm and also adjustable to limitinward swinging of the bracket relatively to the guide rod.

5. In a metal working machine of the character described, the combination with a C- shaped supporting structure, a pair of shafts mounted one at the outer end of the bottomk arm of the structure and the' other at the outer end of the top arm of said structure, and having certain ends thereof disposed adjacent one another and provided with complemental coacting offsetting rolls, and power driven mechanism for conjointly driving the shafts in opposite directions, of a horizontal guide rod mounted on the ,structure and positioned' outwards of and along one side of said bottom arm of the structure, and an adjustable offsetting gauge attachment comprising an upstanding bracket having at the lower end thereof a's'plit bearing for removably and adjustably connecting the bracket tosaid guide rod, and provided at its upper inner portion with a laterally offset vertical roller for en'- gaging certain edges of the work pieces in conncction with the feed of such pieces between the offsetting rolls.

JOI-IN J. MCGLONE. ROBERT I. ANDERSON.

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