US3083006A

US3083006A - Workholding device having means for angular cutoff

Info

Publication number: US3083006A
Application number: US679825A
Authority: US
Inventors: Debs Victor
Original assignee: AMF Inc
Current assignee: AMF Inc
Priority date: 1957-08-23
Filing date: 1957-08-23
Publication date: 1963-03-26
Anticipated expiration: 1980-03-26

Description

March 26, 1963 v. DEBs 3,083,006

WORKHOLDING DEVICE HAVING MEANS FOR ANGULAR CUTOFF Filed Aug. 2s, v1957 s sheets-sheet 1 lNvEN'roR VICTOR DEBS ATTORNEY March 26, 1963 VLDEBS 3,083,006

woRKHoLDING DEVICE HAVING MEANS EOE ANGULAR oUToFF Filed Aug. 25, 1957 y y @E 5 Sheets-Sheet 2 FIG. 3

lNvENToR VICTOR DE BS ATTO RN EY V. DEBS March 26, 1963 WORKI-IOLDING DEVICE HAVING MEANS FOR ANGULAR CUTOFF Filed Aug. 23, 1957 FIG.5

Fles

INVENTOR vlcToR DEBS ATTORNEY United States Patent 3,083,006 WRKHLDING DEVICE HAVING MEANS FOR ANGULAR CUTFF Victor Debs, Ridgewood, NYY., assigner to American Machine 8: Foundry Company, a corporation of New .ierse y Fiied Aug. 23, 1957, Ser. No. 679,325

6 Claims. (Cl. 269-110) This invention relates in general to work piece holding vises and more particularly to vises that may be adjusted to secure one or more work pieces at an angle to the path of the blade of a cutoff machine.

An object of this invention is to provide an angled cutoff vise in which the fixed jaw of the vise pivots near its cutoff side so that the fixed jaw does not swing Very far towards or away from the blade of a cutofIr machine.

Another object of this invention is to lock in position the pivotally mounted fixed jaw of an angled cutoff vise by means of hold down nuts and slidably mounted studs which extends through straight slots in the base of the pivotally mounted fixed ja-W.

A further object of this invention is to provide an angled cutoff vise wherein the movable jaw pivots to engage a work piece in any angular position in which the work piece is held by the pivotally mounted stationary jaw.

Still another object of this invention is to provide an angled cutoff vise having indexing means attached to its adjustably pivoted fixed jaw to allow the jaw to be set and locked into position in a number of pre-selected angles.

An additional object of this invention is to provide an angled cutoff vise having hold down bars secured to extend between the jaws of the vise so that the vise and the hold down bars may be used in combination as a nesting device to hold a number of work pieces. Y

A still further object of this invention is to provide a more versatile work piece holding vise for use in combination with a horizontal band saw machine.

Additional objects, advantages and features of invention reside in the construction, arrangement, and combination of parts involved in the embodiments of the invention and its practice otherwise as will be understood from the following description and accompanying drawings wherein:

FIG. l is a side elevation of the rst embodiment of the angled cutol work piece holding vise with sections broken out of its length and the remaining portions brought closer together;

FIG. 2. is a plan View of the first embodiment of the angled cutoff work piece holding vise with sections broken out of its length and the remaining portions brought closer together and with an angled position of the jaws shown in dotted lines;

FIG. 3 is a side elevation of a broken away portion of the second embodiment of the angled cutoff work piece holding vise with hold down bars mounted upon it;

FIG. 4 is a plan view of a broken away portion of the second embodiment of the angled cutoff work piece holding vise with hold down bars mounted upon it and with an angled position of the jaws shown in dotted lines;

FIG. 5 is an end elevation of the second embodiment of the angled cutoff work piece holding vise with hold down bars mounted upon it; and

FIG. 6 is a section taken on line 6-6 in FIG. 1.

Patented Mar. 26, 1963 Referring to the drawings in detail, FIG. l shows the elements that comprise the first embodiment of the work piece holding device. The frame 10 of the work piece holding device is secured to a horizontal band sawing machine by means of the machine screws 9 which pass through the frame lianges 11. Two way elements or members 12 are secured to the two sides of the frame 10I by means of the machine screws 8 to form a rectilinear way, running longitudinally of the holding device, between said way elements or members. The ratchet rack 13 which is T shaped in section is slidably mounted on top of and between the two way members to be held in engagement with them by means of the slide members 14 and 15 which are secured to the bottom of the ratchet rack to extend partially beneath both way members. The machine screws 7 hold the slide members to the ratchet rack.

As shown in FIG. 6, the downward projection 16 of the slide member 15 extends between the two arms 17 and 18 of the yoke 19. 'Ihe two arms of the yoke are secured to the downward projection by means of the pin Ztl which is driven into place in the yoke and in the downward projection through the apertures 21 in the sides of the frame 10. The pin 20 is then locked in place by means of the snap rings 22.

Referring again to FIG. 1, the yoke 19 is fixed to the operating rod 23 which may be extended or retracted by means of the hydraulic cylinder 24. The hydraulic cylinder is secured tothe end member 25 of the frame 10 by means of the machine screws 6 which pass through 'the` mounting ange 26 of the hydraulic cylinder and into the end member 25. As a hydraulic fluid is forced into the hydraulic cylinder from the tubing 27 which is attached -by means of the fitting 28, the operating rod is extended to slide the rachet rack away from the hydraulic cylinder; and, as the hydraulic fluid is allowed to flow from the hydraulic cylinder, the operating rod is withdrawn to slide the ratchet rack towards the cylinder.

As is further shown in FIG. l and in FIG. 2, the end of the frame 10 disposed laway from the hydraulic cylinder has the jaw supporting

way members

29 and 30 fixed lto it yby means -of the counter sunk, flat head machine screws 5. The movable jaw support cured above yand between the jaw supporting way members in much Ithe same manner vas the ratchet rack is secured Ito the way members 12. The slide member 34 is secured to the movable jaw support ibracket by means of the machine screws 7 to contact the under surface of both the jaw supporting way members. The pawl 35 is pivotally fastened Jbetween the

flanges

36 and 37 of movable jaw support bracket with the pin 38. Attached to the front of the movable jaw support bracket with the bolt 39 is the movable jaw swivel 4t)1 which has the hinge pin 41 extending through its upper and lower

horizontal anges

42 and 43. Disposed above these 4lianges land about ythe hinge pin 41 are movable

jaw support flanges

44 and 45 which are integral parts of the movable jaw 46. This hinge pin is held in .place by means `of the locking nuts 47. The stop member 11 is formed on the back of the movable jaw 46 to contact the arresting surfaces 2 formed on the front of the movable jaw swivel 4.0 so that the movable jaw cannot pivot in one direction beyond a position normal to the axis of the frame. The wear resistant facing 48 of the movable jaw is secured in position with the machine screws 4. i

bracket 33 is slidably se- The fixed jaw 49, which has its wear resistant facing 50 secured in place by means of the machine screws 4, has the horizontal base plate Si resting upon .the jaw supporting way members. Two

lianges

52 and 53 brace the jaw to the horizontal base plate -which is pivotally secured to the jaw supporting way mem-ber 29 :by the pin 54. Two elongated slots S and S6 extend substantially parallel to the fixed jaw 49 to have the hold down bolts 57 `and 5S disposed through them to be turned into the T nuts 59 that are Adisposed below and between .the jaw supporting way members, The frame 'below the fixed jaw 49 contains theapertures 6l) which may be entered by the setl screws 611. A rod which has a stop member affixed to it may be disposed through these apertures 60 and locked in place with the set screws'lr to longitudinally position a work piece extending between the jaws. The end plate 62 may also be added to the frame 10 to further strengthenand brace it.

The first'embodiment of the angled cutoff work piece holding Vvise may-be used as follows in combination with a horizont-al bands'aw. The blade of such .a band saw would Ibe arranged to move downwards disposed in a substantially horizontal position parallel to and slightly outside the jaw supporting way 29. The blade would be traveling from the movable jaw toward the fixed jaw along the line A-A-FIG. 2-so thatV a work piece would tend to be forced against the fixed jaw as it was cut. Ifl

the work piece was to be cut off square, the fixed jaw would be secured as shown in FIG. V1 and FIG. 2 by tightening the hold down bolts 57 and 5S. The workpiece would then be placed between the jaws onthe jaw supporting Away members next to the f ace of the tixedjaw. The movable jaw could then be slid against the workpiece as the movable jaw support bracket is-ree to slide alongthejaw supporting way members as the pawl ridesY over the teeth of the stationary :ratchet rack. Asrthe hydraulic cylinder is activated to slide the rack'tow-ards the stationary. jaw, the teeth of the ratchet rack engage the pawl to slide the movable jaw towards the fixed jaw and secure the work .piece between them.

1f a Work piece is vto be cut at anangle, the hold down bolts 57 ,and 58 would be loosened and the indexing pink 63 withdrawn from its aperture in the base plate of theI fixed jawand ya conrespond-ing aperture 67 in the jaw supporting way member 30. Then the fixed jaw could be pivoted about thepin 54 asthe degree of pivot is indi-y cated by, the markings 68.1on the top Vsurface of the jaw supportingl way 30. It should'be noted that the fixed jaw in any angular position remains close to the cutter line indicated at A-A FIG. 2. The angle of cut may yalso be set using the indexing pin 63 which yis fastened to the fixed jaw by the screw 64v and the line 65 to be dropped into an aperture 66 when this aperture isproperly aligned v with the aperture in the base .plate of the pivoted fixed jaw. After the hold down bolts are tightened to hold the fixed jaw at the desired'angle, the work piece 4is placed between the jaws as has been described except that the work piece. is now arranged parallel :to the pivoted face of the fixed jaw. As the mova'ble jaw .is activated to grip the work piece, it pivots about the hinge pin 41 to align itselfwith the work piece and force it against the fixed jaw. The dotted line drawings of the jaws in FIG.` 2 show the relative positions of the` jaws to hold :a work piece for a 30 degree cut. The aperture 66 is shown formed in the jaw supporting way mem'berp30' so that, when the indexing pin passes through .the horizontal base plate and the aperture 66, the fixed jaw will be pivoted 3D degrees. Further apertures could`sbe formed in the jaw supporting way member 30 so that different degree settings of the fixed jaw could rapidly be made using the in-V dexing pinl The particular construction of this embodiment of the invention enjoys many advantages.y For example, the fixed jaw is adjustablyjpivoted about the pin 54 'which is placed -near the path of the saw blade so that the edge of the fixed jaw disposed towards the blade cannot pivot very into the slidably mounted T nuts `which ride below and within the jaw supporting ways. Naturally the slot disposed furthest from the pin 54 must be longer and it will urge the hold down bol-t disposed within it to slide further as the fixed jaw is pivot'ed. in addition the swivel construction of .the mov-able jaw allows =a great saving in time as only one jawneed be set to malte an angled cut. Finally the large stud 69 and the two smaller studs 70 that extend upwards, respectively, from the top of the movable jaw and the top of the xed jaw, enable the nesting device, that is the subject of my `co-pending application entitled Worltholding Device which was filed August 16, 1957, to be secured to the angled cut-off vise. This enables the first embodiment of the invention to be used as a nesting device and 4thereby greatly increasesits versatility.

The elements comprising the second embodiment of this invention correspond in general to the same elements comprising the lfirst embodiment Kwith the following modiiications and additions. Referring to FIG. 5, in the sec.- ond embodiment of the invention, the jaw supporting way members 29 and 3l? are shown formed as integral parts O the frame 10. As shown in FIGS. 3 and 4, the movable jaw support bracket 33 is provided with an upward extension 71 to hold the stud 69 provided for the purpose of securing one end of member 74. in addition, the

vertical supports

72 and 73 are fixed to the jaw supporting way members with the bolts 3- to support the two studs 70, which support therother end of member 74. These Vvertical supports are disposed so -as to be behind and clear of the adjustable pivotal travel of the fixed jaw.

Referring now to FIG. 4, this nesting device consists of amain support member 74 fixed to the upper ends of the

vertical supports

72 and 73 by lthe nuts 75 which are turned down about the studs 7 The other end of the main support member is slidably secured to the top surface of the upward extension71 ofthe movable jaw support bracket by the stud 69 which extends through the longitudinal slot 76. The nut 77 and the washer 78 hold the main support member down in sliding contact with the upward extension 71 as the movable jaw is opened and closed. The hydraulic cylinder 79 is slidably secured to main .support member by means of the bolts 80 which secure the lower Iiiange 8 1 of the hydraulic cylinder 79 to the T nuts 82 through the slot 76. The upper flange 83 of the hydraulic cylinder 79 is secured to the lower iiange 81 by means ofthe bolts 34. The cross member 85 is fixed to the piston of the hydraulic cylinder 79` by meansof a threaded securing member 96 which is cooperatively engaged with a threaded recess in the'piston. The threaded securing member is rigidly fixed to the cross member 85 by the bolt 164. An upward projection 86 of the piston extends into an aperture in the upper flange of the hydraulic cylinder 79 so that the upward projection and the entire piston may be turned within the hydraulic cylinder by turning the easily reached slot S7. This turning may extend the threaded securing member and lower the cross member 8S; The details of the construction of this hydraulic cylinder are shown in my forementioned pending application. Hydraulic iiuid under pgessure. is introduced through the tubing di, and the fitting 8 9 to activate the cylinder yand lower the cross member. As shown in FIG. 3 and FIG. 4, the hold down

bars

90 and 91 are secured to the end portions of the cross member by the bolts 94 which extend through the longitudinal' slots 9:5 in the hold down bars. These hold down bars may be protected by suitable wear resistant linings 97 andy 98. FlG.,5 further showsthe two vertical4 walls 99 and 10i) formed on the cross member 85 to have the stops 101 and i162 secured to their top surfaces with the screws -3.

This second embodiment of the invention may be used as follows. if a number of work pieces are to be secured for a simultaneous cutoff operation, they would be stacked on the jaw supporting way members between the jaws which would be secured normal to the axis of the frame 10 as shown in FIG. 3 or FG. 4. The bolts 80 and the bolts 94 would be loosened so that the hydraulic cylinder could be slid into a position midway between the jaws as the hold down bars are adjusted to at least extend between the jaws `whereupon the bolts Si? and the bolts 94 would be tightened. At this time the hold down

bars

90 and 91 can be brought into light contact with the work pieces by turning the slot 87 to lower the cross member If a hydraulic fluid is introduced under pressure through the tubing 88 into the hydraulic cylinder '79, the piston is forced downwards to carry the cross member and the hold down bars downwards. Therefore, as the hydraulic cylinders 79 and 24- -are simultaneously activated, the pawl moves the jaws together as the hold down bars move downward to clamp the work pieces between the jaws at the same time as they are clamped between the jaw supporting ways and the hold down bars. The work pieces are thus secured for a simultaneous square cutoff operation.

If a number of work pieces are to be secured for a simultaneous angled cutoff operation, the fixed jaw is pivoted and locked into position as has been described for the lirst embodiment of the invention. The dotted line drawing of the jaws in FIG. 4 shows the jaws pivoted in position to hold a number of Work pieces in alignment for a 30 degree cut oif operation. The hydraulic cylinder 75%' is then slid into a position midway between the pivoted jaws as the hoid down bars are 4adjusted to extend beyond the ends of the jaws. Both hydraulic cylinders are activated to secure the work pieces between the swiveled jaws and between the hold down bars and the jaw supporting way members for an angled cutoff operation.

it can readily be seen that there are many advantages inherent in the particular construction of this second embodiment of the invention. The hold down bar 93 on the cutoff side of the vise clears the cutoff side of both jaws so t at it does not interfere with their angular adjustment. Also, since the main support member is not secured to the swiveling portions of either jaw, it remains independent of the angular adjustment of the jaws. Because the downward force exerted upon the hold down bars can be centered approximately between the jaws, this combination can much more effectively secure the work pieces. rIhis angled cutoff vise with hold down bars results in one of the most versatile work piece holding mechanisms ever adapted to be used in conjunction with cutoff machines.

While I have disclosed my invention with particularity in the best forms known to me, it will nevertheless be understood that these are purely exemplary and that modiiications in the construction, arrangement, and combination of parts, substitution of materials and substitution of equivalents mechanically and otherwise, may be made without departing from the spirit of the invention, except as it may be more particularly limited in the appended claims wherein I claim:

1. In a work holding vise for use with a cutoff saw or the like, the combination of frame means having a supporting surface of substantial width and having a side adapted to be disposed closely adjacent and parallel to the cutting line or the saw or the like; a pair of jaw structures mounted on said frame means and spaced in a direction generally parallel to said side of said frame means and extending upwardly from said surface; and means operatively arranged to effect relative rectilinear movement of said jaw structures toward each other in said direction; one of said jaw structures comprising a jaw member having a hat, vertically disposed work-engaging face of substantial width extending transversely relative to said direction and having an end disposed adjacent said side of said supporting surface, means pivotally mounting said jaw member on said frame adjacent to said side for pivotal movement of said jaw member about a vertical axis located closely adjacent to said end, and means, spaced from said pivotally mounting means, operative to lock said jaw member in pivotally adjusted position at any of a number of selectable angles with re'- spect to said side; the other of said jaw structures comprising a jaw member having a work-engaging face directed toward said one jaw structure, and means mounting said last-mentioned jaw member for pivotal movement about a vertical axis.

2. A workholding device in accordance with claim 1 having power means operatively connected to said other jaw structure to apply force thereto to move said other jaw structure toward said one jaw structure, said vertical axis being substantially centered with respect tot the line along which force is applied to said other jaw structure by said power means.

3. A workholding device in accordance with claim 1 having a first and a second rigid support member extending upward from said surface, an elongated horizontal frame member mounted on said supports, power means mounted on said horizontal frame member, a horizontal hold down member connected to said power means and vertically displaceable by said power means, said jaw members and said hold down member disposed so as to permit the cooperative clamping of one or more workpieces therebetween at any of said angles.

4. In a work holding vise for use with a cutoff saw or the like, the combination of a horizontal base having a substantial width and having a side adapted to be disposed closely adjacent and parallel to the cutting line of the saw or the like; a slide; means carried by said base and forming a way extending parallel Ito said side of said base and spaced therefrom, said slide being mounted for rectilinear movement along said way; power means connected to said slide and arranged to apply' an actuating force thereto to move the slide along said way; a first jaw member extending transversely of said way and mounted on said `slide for pivotal movement about a vertical rst axis located in mid-position laterally on said base; a relatively iixed jaw structure comprising a horizontal base plate, said plate having substantial width, a vertically disposed elongated second jaw member rigidly connected to said base plate and extending transversely of said way, said second jaw member having an edge disposed closely adjacent to said side of said base, said base plate elongatedly perforated in mid-lateral position thereof transversely o-f said way; pivot means mounting said jaw structure on said base for pivotal movement about a second vertical axis located closely adjacent said side of said base, said second axis displaced substantially laterally from said rst axis, said pivot means affording rigid support for said jaw structure in directions normal to said second axis; a jaw structure hold down member, separate from said pivot means, disposed to move along said way parallel to said side and located below the base pla-te of said jaw structure, said member being restrained against movement in other directions, and rigid fastener means extending downwardly through said perforation and operatively associated with said member Ito clamp said jaw structure in pivotally adjusted position to said base.

5. As a subcombination of a vise, a rotatable elongated jaw having au operating uniplanar face and a first and a second means for securing said jaw against displacement when engaging a work piece, said rst means being a pin disposed near one end of said jaw to minimize vibration caused by the operation of a tool near said end, said pin serving also as the axis about which said jaw is rotatable, said second means being hold down means for said jaw, displaced substantially from said pin,

and located centrally in said jaw, said hold down means comprising a base supporting said jaw, lsaid base having' spaced elements forming a straight open way, an instr-u-V mentality slidable rectiiinearly in said Way and restrained from other motion, said jaw perforated to form an elongated aperture parallel to said face in the central portion of said jaw, said aperture and said instrumentality disposable in said yvise so as to maintain registry as said jaw is rotated, and means, interconnecting said instrumentality through said aperture to said jaw;

6. A vise having a rst and a second opposed uniplanar operating face in a first and a'second elongated jaw, respectively, each of said jaws rotatably adjustable in said vise and disposed to hold a Work piece at a selectable angle in said vise, said first jaw perforated to form an elongated aperture in its central portion parallel .to its said respective face, first securing means in said vise for said first jaw, said irst securing means displaceable rectilinearly and restrained from other motion in said vise and disposed to maintain registry with said aperture Vas said irst jaw is rotated, said iirst securing'means disposed to provide a substantially centrally located stabilizing means for said rst jaw, when said rst jaw is rotated into any seelcted angular position, a second securing means in said vise for said first jaw, spaced substantially from said first securing means, and closely adjacent an endof said rst jaw, saidend closely adjacent the position of a tool operable on said work piece near said end, said second securing means disposed to minimize vibration of said` Work `piece due to the action of said tool, said second securing means forming also the Vaxis about which said first jaw is rotatable, andra third securing means in saidy vise orsaid first jaw, said third securing means being near the opposite end ofV said jaw from said axis, said third securing means being a displaceable pin in registry with means for indicating the angle of rotation of said lirst jaw in said vise.

References Cited in the tile of this patent UNITED STATES PATENTS 90,800 Willett I-u-ne 1, 1869 143,734 Utter Oct. 14, 1873 509,722 Richard July 4, 1893 504,939' Reck Sept. 12, 1893 528,738 Pfouts Nov. 6, 1894 573,886 lingenberg Dec. 29, 1896 y 718,573 DeLaval et al Ian, 13, 1903 914,299 McCarthy Mar. 2, 1909 1,647,522y Hirth Dec. 17, 1912 1,111,386 Hutton Sept. 22, 1914 1,281,161 Hochstein Oct. 8, 1918 1,751,329 Hancock Mar. 18, 1930 2,267,499 Freidag Dec. 23, 1941 2,653,378 Esak Sept. 29, 1953 2,667,799 Rzepela Feb. 2, 1954 2,767,458 Meier Oct. 23, 1956 2,881,645 Kruchten Apr. 14, 1959 2,971,756 Debs Feb. 14, 1961 FOREIGN PATENTS 729,654 Germany Dec. 19, 1942 Great Britain June 21, 195()

Claims

1. IN A WORK HOLDING VISE FOR USE WITH A CUTOFF SAW OR THE LIKE, THE COMBINATION OF FRAME MEANS HAVING A SUPPORTING SURFACE OF SUBSTANTIAL WIDTH AND HAVING A SIDE ADAPTED TO BE DISPOSED CLOSELY ADJACENT AND PARALLEL TO THE CUTTING LINE OF THE SAW OR THE LIKE; A PAIR OF JAW STRUCTURES MOUNTED ON SAID FRAME MEANS AND SPACED IN A DIRECTION GENERALLY PARALLEL TO SAID SIDE OF SAID FRAME MEANS AND EXTENDING UPWARDLY FROM SAID SURFACE; AND MEANS OPERATIVELY ARRANGED TO EFFECT RELATIVE RECTILINEAR MOVEMENT OF SAID JAW STRUCTURES TOWARD EACH OTHER IN SAID DIRECTION; ONE OF SAID JAW STRUCTURES COMPRISING A JAW MEMBER HAVING A FLAT, VERTICALLY DISPOSED WORK-ENGAGING FACE OF SUBSTANTIAL WIDTH EXTENDING TRANSVERSELY RELATIVE TO SAID DIRECTION AND HAVING AN END DISPOSED ADJACENT SAID SIDE OF SAID SUPPORTING SURFACE, MEANS PIVOTALLY MOUNTING SAID JAW MEMBER ON SAID FRAME ADJACENT TO SAID SIDE FOR PIVOTAL MOVEMENT OF SAID JAW MEMBER ABOUT A VERTICAL AXIS LOCATED CLOSELY ADJACENT TO SAID END, AND MEANS, SPACED FROM SAID PIVOTALLY MOUNTING MEANS, OPERATIVE TO LOCK SAID JAW MEMBER IN PIVOTALLY ADJUSTED POSITION AT ANY OF A NUMBER OF SELECTABLE ANGLES WITH RESPECT TO SAID SIDE; THE OTHER OF SAID JAW STRUCTURES COMPRISING A JAW MEMBER HAVING A WORK-ENGAGING FACE DIRECTED TOWARD SAID ONE JAW STRUCTURE, AND MEANS MOUNTING SAID LAST-MENTIONED JAW MEMBER FOR PIVOTAL MOVEMENT ABOUT A VERTICAL AXIS.