US1459776A - Plate-punching machine - Google Patents

Description

Jam 26, E923. L459J76 G.LASKER PLATE PUNCHING MACHINE Filed Nov. 8, 1919 4 Sheets-Sheet 1 June 26, 1923. 1,459,776

4 LASKER PLATE PUNCHING MACHINE Filed Nov. 8, 1919 4 Sheets-Sheat 2 5V /5 f5 5 7 A25 z 10\ o 3 o co 3 o 0 7/ June 26, 5923.

Filed Nov. 8 1919 G.LASKER PLATE PUNCHING MACHINE 4 Sheets-Sheet 3 G. LASKER PLATE PUNCHING MACHINE 1919 4 Sheets-Sheet 41 Filed Nov. 8

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GEORGE LASKER, OF CHICAGO, ILLINOIS.

PLATE-PUNCI-IING MACHINE.

To all whom it may concern:

Be it known that I, GEORGE LASKER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Plate-Punching Machines or the like, of which the following is a description.

My invention belongs to that general class of devices known as plate punching machines employed for punching rivet or bolt holes in sheet metal plates used for the making of tanks, boilers, or otherdesired purposes. The invention has among its objects the production of a device of the kind de scribed, that is simple, convenient, durable, efficient and satisfactory for use wherever found applicable. It has among its further objects the productionof a device of the kind described which will accurately punch plates of the desired size, thicknessfland shape in a predetermined manner, without requiring a layout as is customary at the present time. The machine is adapted to cut or punch the holes in a predetermined manner to correspond with any predetermined regular or irregular design with a minimum of labor and time, regardless of the size of the work, within the limits of the machine, and to cut the holes disposed in the form of an arc of any desiredradius or design. Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein made, i

To this endmy invention consists of the novel construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding P I Figure l is a plan view of one form of my device,

Figure 2 is a sectional view taken substantially on line 22 of Figure l,

*Figure 3 is a sectional view taken substantially on line 3+8 of Figure 2,

Figure 4 is a sectional view taken substantially on line 44 of Figure 3,

Figure 5 is a plan view of a portion of the maintable and guide bar shown in nigure 1, c p

Figure 6 is a sectional view taken sub stantially on line 6-6 of Figure l, and

Figure 7 is a view of the gauge bar 37 and cooperating pawl looking substantially from the point marked wit-h the arrow 7 in Fig. 6.

Figure 8 is a fragmentary section taken substantially on line 88 of Figure 5;

Figure 9 is a fragmentary section taken substantially on line 9-9 of Figure 1; and Figures 10, 11, 12, 13, and 14: represent varioustypes of punched plates.

Referring to the drawings, 1 and 2. represent suitable punch presses of the desired size and type and which may be constructed to eachpunch one or more holes simultaneously. I have indicated the punch ma chine heads with the numerals 3, but in view of the fact that any desired type of punch machine may be employed I have not con sidered it necessary to illustrate the punch presses in detail. The punching machines in the preferred construction are set or mounted substantially as shown, on opposite sides of what may be termed the guide rail 5, as well as on opposite sides of a line extending transversely of the line of the guide rail. Preferably they are so arranged that the punches are in a common line, extending at right angles to the guide rail andinparallel alignment with the frames, substantially atan angle of degrees to the guide rail. (See Fig. 1.) This arrange' ment permits a plate, for example, plate 4 to be fed through the punch machines in a plurality of directions, with plenty of clearance. .The guide rail 5 is of the desired shape,size and material and of the desired length and supported andsecured in place in the desired manner. In the machine illustrated it is secured in place so that it may be flexed. or adjusted as will be hereinafter described. The same is shown mounted on a table consisting of the bed plate 6 carried by legs or frame parts 7, it being understood, however, that the same may be supported inany desired manner. The frame parts 7 are shown provided with standards 8, carrying rollers 9 or their equivalents so that the plate may be pushed along the table with as little friction as possible. These rollers may be of the swivel type, similar to a caster if preferred.

Referring particularly to Figures 1, 5 and 6, the guide rail 5, as shown. is supported by the base plate 6 and maintained against transverse movement by the adjustable screw members 10 carried by the brackets 11. By adjusting the members 10 as de sired, the guide rail may be maintained in a desired or predetermined position; for eX- ample, it may be adjusted as indicated by the dotted lines in Figures 5 and 6, the purpose of this being hereinafter described. The guide rail between its ends or at the center of the machine, however, is preferably not adjustable and. is maintained 1n place by the brackets 11 (see Figure 5) arranged substantially in the line of the punch machines or line aa as indicated in Figure 1. Arranged to travel or slide on the guide bar 5 are clamping members 12 and 13 or the equivalent of suitable form, which, in the construction shown, are formed with a slot 14 for the reception of the plate, which may be secured to the clamps by the bolts 15 or their equivalents for the purpose. The clamps 12 and 13 are formed with a portion 16 extending to each side of the guide bar, so that as the plate is pushed along on the table, being sup ported by the rollers 9 or their equivalents, its travel will be directed or guided by the K guide rail 5. On one side of the table and on the side of the line aa opposite to the punch at that side of the table, I provide a guide rail 19 which may be maintained in place on a table similar to that described for the guide rail 5, and I also provide a guide rail 20 similarly arranged on the opposite side of the table, as most clearly shown in Figure 1. These two guide rails may be secured in place by adjustable members simi- 7 lar to the members 10 or secured in fixed position by members similar to 11, the ad justa-ble arrangement, however, being ordi narily preferred. The length and width of -.1 l1 several tables obviously depend upon "the capacity of the machine and should be sufficient to take care of the largest size plate which it may be desired to punch. A clamp carriage or frame 28 is preferably arranged so as to be guided by the guide bar 19, the same having clamps 24 for clamping the plate. A frame 25 having clamps 26 is also arranged to cooperate with the guide bar 20. As shown, frame 23 follows the plate while frame 25 precedes it. Any suitable mechanism may be provided to feed the plate along the tables. As shown (Figs. 1, 2 and 6) I arrange a rack bar 28 and carry the same by the clamps or an equivalent manner so it is connected with the plate. The same is arranged to be driven by a pinion 29 in any suitable manner. I have shown pinion 29 driven by a pinion 30, suitably connected thereto, which is in turn driven by bevel gear'31, shaft 32, bevel gears 33, shaft 34 and a hand wheel 35. I have not considered it necessary to show this construction in detail for the frames 23 and 25, as the same maybe similar to the mechanism shown on the table for bar 5.

To afford a measure of the movement of the plate between each punching operation I provide what may be termed a stop or gauge bar 37 arranged to cooperate with the pawl 38 01 the like carried with the plate (see Figure 7), the same, in the construction shown, being secured to one of the clamps 12. In moving the plate, the hand wheel or the equivalent may be turned until the pawl 38 engages the next tooth, the hand wheel being then ordinarily turned back so that the pawl properly engages with a tooth on bar 37. Obviously the number of teeth or length of the samedetermines each step in the travel of the plate so that by varying or employing different stop bars 37 the plate may be caused to travel in steps of various lengths, as may be desired. I have shown a plurality of stop. members 39. (See Figures 1, 5 and 8, as well as Figure 6.) These are shown secured in place by brackets 40 carriedby a portion of the table frame and their purpose is to assistin securing a proper alignment or setting of the plate when securing the same in the clamps 24. As shown, springs 41 or their equivalent normally maintain the same out of. operative position, but the same may be raised into position by a'bar 42 having a cam member 42'.

Each of the punch presses has the usual base 44 which may be carried on the base or foundation 45. As shown, the punch presses are slidably mounted on the bases 45 and mechanism is provided for moving them toward or from each other but parallel with the line (1-60. The mechanism provided moves the punches simultaneously and equal distances from the guide bar 5.

Referring particularly to Figures 3 and 4, bolts 46 normally secure the punches in operative position on the bases or foundations 45. Each machine is provided with an extending part 47 arranged to be engaged by a rod 48. The rods 48 are connected by shaft 49 and bevel gearing 50. One rod 48 may be provided with a hand wheel 51 or arranged to be driven in an equivalent manner. As the hand wheel is turned, shafts 0r rods 48 rotate and move the punch machines together or separate them the desired distance. hen in the desired positions, they are bolted down by'the bolts 46.

The punches 1 or 2 may be driven in any suitable manner, this depending somewhat upon the make and type of the punch, but the driving mechanism is preferably so arranged that the machines will. be driven in unison or simultaneously and so that the presses may he adjusted. as described. As illustrated in Figure 1, I provide a driving shaft 58 arranged to drive the pinions 54 which drive the gears 55 operatively connected with the punch mechanism, it being understood that idler gears may be provided lili) 26 are if desired. The pinions or gears 5-1 are arranged to slide on the shaft 53,,being keyed or otherwise suitably secured thereon, their movement being controlled by the arms 56 so that as the machines are: adjusted on their foundations the driving mechanism is automatically adjusted at the same time. Shaft 53 may be drivenby gearing 57-58 and motor 59, or in an equivalent manner.

The operation of the mechanism may be briefly described as follows: Assuming that it is desired to punch a rectangular plate.

similar to the plate 4; with the row of holes l about the same. The plated is first se cured in the clamps 24 on the frame 23 and above the guide rail 19. The stops 39 'may be raised to afford a convenient setting so that the plate is set true, after which the stops are dropped. Frame 23 is then fed along on the guide raillll, starting as inclioated in dotted lines at 4a, the feeding mechanism being similar to that descr'hed for the guide bar 5. are punched by the press 1, the plate being moved forward in a direction indicatedby the arrow X and toward the opposite punch. When the first hole punched by No. l punch has reached the. corresponding punching position under punch No. 2, clamps 12 and 1.3 are adjusted to the plate and the same se- .curely fastened therein. Clamps 2a are then released and the frame moved backoutol' the way. The plate is then advanced by means of the operation rof wheel 35 and of the mechanism described, in the direction in dicated by the arrow Y, and the parallel sides of the plate are. simultaneously punched as. indicated in Figure 1. The plate is moved in the direction indicated until the predetermined number of spaces or holes have been punchechafter which clamps applied and clamps l2 and 13 released, and the plate and frame 25 are then moved ii the direction indicated bythe arrow Z, in all respects similar to, themovementof the plate when on the guide bar 19 and the holes punched by press 2. l Vhen this movement has progressed to the last hole on) this side or edge of the plate, the punching operation is complete and the plate may then be removed. It will be particularly noted that after the plate is first secured to the clamps 24, it istat alltimes secured against independent movement other than allowed by the guides 19, 5 and 20, until the punching is completed. This description covers the movement of a plate rectangular or square in form punched on four sides with single row of holes. This maybe variedby punching two, three or four rows of holes staggered and spaced asrequired by means of a multiple punch in which any punch may be stopped or started by means of a wedge or gag (not necessary to show and describe in detail). In other words, the mechanism 1 The holes in one end predetermined radius or form to guide bar is set.

may be provided with two punches, or more,

so that instead of punching a single row at one time, moreuthan one row may be punched, indicated in Figures Band 13, 1n which plates 6 and 66 are shown. However,

in varying the punching, thedesired stop or gauge bar 37 would be employed so that the holes will be punched in a predetermined manner, as might be desired. It will heparticularly noted that with the machine'described, it is unnecessary to lay the work out on the plate, as having properly set the same in the clamps, the punching mechanism adusted, and provided a suitable gauge bar,

the work will be accurately performed withthe common center, by setting the plates in the clamps in a desired manner, or the guide bars may be curved to any predetermined radius or form and as the clamping lugs or members engage the guide bars at all times the plate in its movement would follow any which the If it is desired to cut a telescope pattern similar to that shown in Figure 11, with holes 60 and 61 in the ends and 62 and 63 in the sides, the members 10 are set so as to flex or adjust the guide to form a desired arc. When the guide bar has been properly set to form any radius re quired or are desired, the movement ofthc plate through the machine being guided by the clamping members 12 and 13, with the proper, forward movement ofthe plate and clamps, reproduces the same arcs on the parallel line of holes to which the guide bar is set, thus permitting the punching of telescope patterns of any radius within the limits of which the tableis constiaicted. In practice it is necessary in the punching of telescope patterns to increase the length of the are on the outer are a suillcient amount to make the internal diameter. when formed large enough to go over the external diameter when formed with the following course. In practice this makes it necessary to have an equal number of spaces on both the large and the small arcs. lVith my improved ma 'chine and method of punching, it is .only

necessary to use as a basis of measurement the" mean diameters of the large. and the small ends of all telescope patterns, divide this distance into the number of spaces re quired, and attach the desired stop or gauge bar properly spaced to thetop side of the table top and adjacent the guide bar, in such position that the pawlmay engage with the ratchet by a forward movement in regular order. The necessary increase on the large arc and the decreaseon the small are are automaticallyproducedif the guide bar is set to conform to the proper are required by the diameters of the courses, the width of material and thickness of the materialcollectively taken and the proper gauge bar used. The plate may thereafter be sheared to shape. It is not considered necessary to describe in detail all the possible designs which may be produced and their uses, .nor is it considered necessary in this application to set forth all the details of the punch presses, their punches, single, gang, etc. It may, however, be mentioned that with some work it is necessary to work on arcs of many feet radius which is a very simple matter when the work can be done as herein set forth without requiring the design to be first laid out on the plate. If the machine guide bars, etc., are set right, every plate will be an exact duplicate of the other without error. If desired, only one guide bar or portion of the same may be flexed so that various irregular patterns or designs may be produced.

Having thus described my invention, it is obvious thatwvarious immaterial modificm tions may be made in the same without departingfrom the spirit of my invention, hence I do not wish to be understood limiting myself to he enact construction, arrangement, combination of parts or uses mentioned.

IVhat I claim as new by Letters Patent is:

r 1. In mechanism of the kind described and in combination, punch mechanism, and means for guiding andintermittently feeding the work to be punched to said punch and desire to secure 1 mechanism in a predetermined manner in a plurality of transversely intersecting directions, the feeding movements automatically moving the work a distance equal to the spacing between punch holes. I

2. In mechanismof the kind described and in combination, punch mechanism, ad-

justable means automatically operative for guiding the work to be punched to said punch mechanism in a plurality of transversely intersecting directions, and means for feeding said work to the punch in a predetermined manner.

3. In a mechanism of the kind described and in combination, punch mechanism, means for guiding the work tobe punched to said punch mechanism in a predetermined manner, first in one direction andthen in the direction transverse thereto, and means intermittently feeding said work simultaneously with said guiding, in stepsequal to the spacing between the punch holes.

4. In a mechanism of the kind described and in combination, punch mechanism, means for adjustably. guiding the work to be punched to the punch mechanism first in one direction and'then in a direction transversely I intersecting said direction, and means for feeding said work to the punch in a series of steps of predetermined lengths while guiding it in said direction.

5. In adeviceof the kind described'and in combination, a pair of punch presses, plate carrying mechanism, means for guiding the movement of the plate to feed the work to one punch, means for guiding the movement of the plate in a changed direction to both punches and means for thence guiding the movement of the plate in a changed direction to the-second punch.

6. In a device of the kind described and in combination, punch mechanism, a work table arranged in operative relation thereto, means for clamping said work to said table, means for guiding said work on the table in a plurality of intersecting directions to said punch mechanism without unclamping said workduring its travel in any one direction, and means for feeding the work to the punch mechanism in a predetermined manner. I

7. In a device of the kind described and in combination, punch mechanism, a work table arranged in operative relation thereto, a series of adjustable guide rails mounted on said work table in a series of mutually transverse directions, means for adjustably setting each guide rail for the entire series of holes to be punched on the line parallel thereto, work clamping means arranged to cooperate with said guide rails, means for moving said clamping mechanisms in cooperation with said guides in turn to feed the work to said punch mechanism in said series of directions, and means for gauging the feeding to provide a predetermined spacing of the punched holes.

8. In a device of the kind described and in combination a guide rail, means for sup porting and maintaing said guide rail in a predetermined manner, punch mechanism arranged at each side of said guide rail with their punches substantially in a common line extendingat a right angle to the guiderail,

one punch mechanism arranged on one side of said line and the other on the other side, a guide ra1l extending to adgacent said first mentioned guide rail at one side thereof and.

on the opposite side of said common line relative the punch at said side of the rail, another guide rail extending similarly on the opposite side of said guide rail and on the other side of said common line between the punches work clamping means for each of said guide rails arranged to cooperate therewith, and means for gauging the movement of said clamping means on said guiderail, whereby the holes produced by said punch mechanisms will be spaced in a pre determined manner.

9.- In a deviceof the kind described and in clamping means on said the holes producedby said punch mecna-v combination, an adjustable guide rail, means for supporting and maintaining said guide rail in a predetermined manner, punch" mechanism arranged at each side of said guide rail at an angle thereto with their punches substantially in a common lineex tending at a right angleto the guide rail,

one punchmechanism arranged on one side of said line and the OtilGfOIl the other side, a guide rall extending to ad acent said first mentioned guide rail at one side'thereof and on theopposite side OtSalCl common line relative the punch at said side of the rail, another guide rail extending similarly on the opposite side of said guide rail and on the other side of said common line between the punches, work clamping means. for each of said guide rails arranged to cooperate therewith, means for slidably supporting the work during the movement thereof, and means for gauging; the movement of said guide rail whereby nisms will bespaced in a predetermined 10. In a punch press device of the kind described, a pair of punch presses spaced from each other, a work table extendingba tween the presses and beyond at each side thereof, said. table having an extension on' described, a pair of punch presses spaced from each other, a work table extending between the presses and beyond at each side thereof, said table having an extension on opposite'sides, one extension at one side of the presses and the other at the opposite side, adjustable guide rails extending between the punches and at each side thereof,

work clamping mechanism slidably connect-Y ed with said guide rails, and means for moving said work clamping means and gauging the movement thereof to move the plate to be punched under the punches in a predetermined manner.

12. In a punch press device of the kind described, a pair of punch presses spaced from each other, means for adjusting the relative position of said presses, a work table extending between the presses and beyondat each side thereof, said table having an extension on opposite sides one extension at one side of the presses and the other at the opposite side, guide rails extending between i n j "provided with an ad ustable guide rail exthe punches and at each side thereof, work punched under the clamping mechanism slidably connected with said guide rails, and means for moving said. workclamping means and gauging the movement thereof to move the plate to be punched under the punches in a predeten minedmanner. 13. In punch press device of the kind described, a pair of punch presses spaced from each other, means for adjusting the relative position of said presses, means for driving the presses in 't1I1lSOl1,"-l work table extendingibetween the presses and beyond. at each side thereof, said table having an extension on opposite sides, one extension at one side of the presses and the other at the opposite side,-guide rails extending between the punches and at each side thereof, work clamping mechanism slidably connected with said guide rails, and means for moving said work clamping means and gauging the movement thereof to move the plate to'be punches in a predetermined manner.

14. In. a punch press device of the kind described a pair. of punch presses spaced from each other, means for adjusting the relative position of said presses, adjustable means for driving the presses in unison, a work table extending between the presses and beyond at each side thereof, said table having an extension on opposite sides, one

extension at one side of the presses and the other at the opposite side, adjustable guide rails extending between the punches and at each side thereof, work clamping mechanism slidably connected with said guide rails, and means for moving said work clamping means and gauging the movement thereof to move the plate to be punched under the punches in a predetermined manner.

l5. Ina punching mechanism of the kind described and in combination, a work table provided with a guide rail extending lengthwise thereof, a punch press arranged at each side of said table with their punches lying substantially in aline at right angles to the table and on opposite sides thereof, adjustable supporting means for said presses,

means for. adjusting the presses relative each other to move the same toward or from each other, an extension table arranged on each side of said first mentioned table, one extension table arranged at one side of said line connecting the punches, and the other at the other side, a guide rail carried by each of said tables, clamping mechanism arranged on each guide rail and slidable thereon,

whereby the work may be guided successive ly from one table to the other, and punched at one edge by one punch, and thence at opposite edges by both punches, and thence at the last edge by the other punch.

16. In apunching mechanism of the kind. described and in combination, a work table tending lengthwise thereof, a punch press arranged at an angle at each side of said table with their punches lying substantially in a line at right angles to the table and on opposite 'SlClGS thereof, adpistable supportmg means for said presses, means for adjusting the presses relative each other to move the same toward or from each other.

an extension table arranged on each side of said first mentioned table, one extension table arranged one side of said line connecting the punches, and the otherat the other side, a guide rail carried by each of said tables, clamping mechanism arranged on each guide rail and slidable thereon,

' whereby the work may be guided successivel from one table to the other and Junched at one edge by-one punch, and thence at op-- posite edges by both punches, and thence at the last edge by the other punch, and means table guide rail, means for driving said presses in unison as desired, an extension table arranged oneach side of said first mentioned table and each provided with a guide rail,

clamping mechanism arranged on each guide rail and slidable thereon, means for sliding said clampingmechanisms and means for gauging the sliding thereof.

18. A method of punching plates consisting in feeding the plate to apunch machine and punching along one edge, thence changing the direction of travel and simultaneously punching the two opposite edges, and thence again changing the direction of travel and punching the last edge. r

19. A method of punching plates consisting in feedingthe plate to a punch machine and punching along one edge, thence changing the direction of travel and simultaneously punching the two oppositeedges with out releasing the plate, and thence again Without releasingthe plate changing the direction ol travel and punching the last edge.

in testimony whereof, I have hereunto s1 gned my name in the presence of two sub scribing Witnesses.

GEORGE LASKER.

Witnesses:

ROY lV. HILL, Bnn'rn'a HARTMANN.

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