US769662A - Automatic reducing and pointing machine. - Google Patents

Description

PATBNTBD SEPT. 6, 1904.

E. W. MOREHOUSE. AUTOMATIC REDUGING AND POINTING MACHINE.

APPLICATION FILED MAR. 9. 1904.

4 SHEETS-SHEET 1.

NO MODEL.

No. 769,662. PATENTBD SEPT. 6, 1904.

E. W. MOREHOUSE. AUTOMATIC REDUCING AND POINTING MACHINE.

APPLICATION FILED MAB.9,1904.

NO MODEL.

4 SHEETS-SHEET 2.

/A/ VEA/ TUR.

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E. W. MOREHOUSE. AUTOMATIC RBDUCING AND POINTING MACHINE.

APPLICATION FILED MAR. 9. 1904.

4 SHEETS-SHEET 4.

N0 MODEL.

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UNTTED STATES Patented September 6, 1904.

PATENT DFFTCE.

EUGENE ll'. MOlEl-IOUSE, OF

PROVl DEYCIC, RHODE ISLAND.

SPECIFICATION forming part of Letters Patent No. 769,662, dated September 6, 1904.

Application file.` March 9, 1904. Serial No. 197,350. (No model.)

To (LZ1 wiz/0171, it 'mlrty/ concern,.-

Be it known that LEUouNn D'. b/louitiionsn, a citizen of the United States, residing' at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Automatic Reducing and Pointing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to automatic reducing, pointing, and punching' machines adapted to form and finish pin-tongues and analogous articles from blanks.

Prior inventions provide no means for overcoming' the torsional strain and resulting` weakness in the pin-blank occasioned by the interaction of the swager and chucks.

lt is the intent of the present invention to perforate the pin-blank heads, to provide a means of reduction applicable to pin-blanks of large dimensions, to supply a suitable means for guiding the point of the pin-blank into the swager, to furnish a scale for the shearingmechanism and an adjusting mechanism for the latter, which may be operated without remounting the driving-cam.

To the above ends my invention consists in the novel structure and arrangements of parts hereinafter described and illustrated in the accompanying drawings, wherein' Figure 1 is a front elevation of my new machine; Fig. Q, a plan view of the same; Fig. 3, a horizontal section on line fr :1' of Fig. 1; Fig. A, a side elevation of a portion of the turret, punch, and chuck, showing a part of each in vertical central section, together with similar elevation of the punch-driving cam and lever; Fig. 5, a perspective view of the cutting mechanism and connected parts: Fig. a front elevation of one of the swagers; Fig. 7, a side elevation of the same, showing the face-plate in section on line f/ 1/ of Fig. 6; Fig'. S, a top plan view of the punch mechanism; Fig. 9, a detail of the turret-revolving mechanism, and Fig. 1() a detail of a pintongue completed.

Like reference characters indicate like parts throughout the views.

)ly machine comprises the bed 1, supported by the frame 2, which supports amain shaft l 3, driven by thepulleyei. Mounted upon the bed are the reducing-machines or swagers A B and the swager or pointing mechanism C, equipped, respectively, with the fast and loose pulleys t af, W, and cc'. These swagers are of the type shown in United States Patent No. 510,906. Swagers A and C are in alinement with each other, and B at right angles to the former. All the swagers may be of any desired type and are movable radially to and from the work. Their bases al 712 c2 are adjust-ably secured through slots by bolts 5 to the slides u. /c, respectively, which travel in guideways upon the machine-bed. The adjusting means consist of screws 6, traversing apertured lugs 7 upon the slides and playing' in threaded openings in the swager-bases. Fixed to the bottom of the slides are brackets 8, carrying downwardly-directed cani-rollers 9, which travel in channels (I @1f of cams D E F, respectively. Cams D and F are fixed to shaft 3 and cam E to cam-shaft 10, which is mounted in the machineframe below the swager B and at right angles to the shaft 3. A bevel-gear 11 upon shaft 3 drives shaft 10 through the bevel-gear 12, mounted upon the latter. Through the action of cams D Fi F the swagers A B C reciprocate.

The face of swager A is equipped with an automatic guiding means for the blank to be operated upon. This comprises a face-plate 13, lixed by screws 14e or otherwise to the front of the swager, and is diainetrically channeled to receive two slidable plates 15 and 16. The latter are provided, respectively, with longitudinal slots 17 18 to admit pins 19 Q0 upon the face-plates. The inner contacting margins of the plates are conically excoriated to forni an opening Q1 for receiving the blank to be operated upon. The outer extremities of the plates are respectively provided with downwardly-directed lugs 22 and 23. whose inner surfaces are beveled. Bearing against the outer margins of the two plates are iat springs A 25, fixed to the sides of the swagerhead. Rising from the bed 1, adjacent the outer extremities of the plates, are blocks 26 27, with inclined projections ZS 29 upon their tops. It will be noted that as the swager A is propelled forwardly the beveled lugs 22 IOO and 23 will travel upon projections 28 and 29, by which means the .plates 15 and 16 will gradually separate, while bythe return travel of the swager the plates will approach each` other until they again contact, where they are retained by the pressure of springs 24 25.

Centrally disposed between the swagers upon the machine-bed is a turret Gr, carrying eight radially-disposed chucks H. Each of the latter comprises a lower jaw 30, integral with the shank. The latter is surrounded by a sleeve 3l, provided with an oblong opening 32, sufficiently large to permit longitudinal and transverse play therein of a pin 33 in the shank. The sleeve is retained in position by screw 34 and is channeled to receive bearingballs 35. Upon thevinner extremity of the shank is a nut 36, abutting against the sleeve when the chuck is advanced. Mounted longitudinally in the shank is a pin 37, tensioned by a spring 38 and abutting against a vertical rod 39, fixed in the turret. In vertical alinement with the pin37 and with each other upon the rear of the shank project two spring-rods 38', which press upon opposite sides of the vertical rod 39. Upon the jaw 30 rests the jaw 40, both being traversed by the pin 41, whose upper end carries nuts 42 and whose intermediate portion carries a head 43, having a cam-shaped upper surface coacting with a similarly-formed cam-face upon an annular block 44, fixed in the lower portion of jaw 30. An outwardly-projecting lever 45 is carried by the head 43 and is tangentially arranged in relation to the turret circumference. The inner surfaces of the jaws near their outer extremities are provided with hardened dies or plates 46. A vertical passage 47 traverses the jaws and dies. The jaws arenormally retained in open position by means of intermediate curved springs 107.

The mechanism for punching the pin-head is mounted upon the machine-bed intermediate the swagers A and B and directly below the jaws of the chucks. It comprisesa block 48, rising from a base 49, fixed to the machinebed. Slidably mounted in the block is a plunger 50, to whose upper portion is attached by a clamping-screw 51 a block 52. The upper portions of the block and plunger are recessed to receive two retaining-dies 53 with a central intermediate channel, in which is mounted a punch 54. The block 48 has a rectangular recess 55,.which forms a shoulder 56 to limit the downward travel of plunger. The latter has-pivoted to its lower extremity a lever 57, fulcrurned at its opposite end to the machine-bed and provided with an intermediate arm 58, carrying upon its extremity a roller 59, which travels in the channel 60 of cam K, mounted upon shaft 3.

An intermittent rotary motion is imparted to the turret by means of a slide 62, carrying a hook 63, which engages a pin 64 upon a di k 65, mounted loosely upon a stud 66, projecting bed and carries a roller 72, which travels in the channel 73 of cam I, mounted on shaft 3, through which means the slide is reciprocated and the turret intermittently advanced.

At the completion of each advance step of the turret it is necessary that the latter be retained immovably. To effect this, the ratchetwlieel 70 is provided with equidistant peripheral notches 74 intermediate the ratchet-teeth, with which notches register a pin 75, carried by a block 76, which reciprocates longitudinally in the machine-bed by virtue of a roller 77, fixed to the block, which travels in the channel 78 of cam J, mounted on shaft 3. It is obvious that the pin enters its notch 74 at the completion of each reciprocation of the slide 62.

The feeding means comprises the receptacle or run 79 upon an upright extension 8O of the machine-bed. Pivoted between lugs 81, depending from the bed, are two substantially L-shaped levers 82 83, whose respective lower extremities carry rollers 84 85, registering in the channels ofcams L VM and whose upper extremities respectively engage and reciprocate the pin-slide 86, which conveys the pinblank from the receptacle to the chuck, and the bolt 87, which contracts the chuck-jaws upon the blank by contacting with the arms '45. The means for reciprocating the pinslide and bolt are the cams L M, which through the rollers 84 85 actuate the lower extremities of the L-shaped levers 82 and 83, respectively.

Before the action of the pointing-swagger@ upon the blank it is requisitethat the latter be cut or sheared to a predeterminedV length. The mechanism for effectuating this is mounted upon the machine-bed intermediate swagers B and C and comprises, as shown in Fig. 5, a bracket 88, mounted upon the bed and adjustable to and from the chuck series by the screw 89, traversing an upright lug upon the bed. The base of-the bracket is fixed in adjusted position by a clamping-screw 91, traversinga slot 92 therein. A rule 93 is fixed to the surface of the bed beneath the bracket and is employed to indicate the required distance of the cutting mechanism from the chuck series. Vertically mounted in the bracket 88 is a cutter-slide 94, with an L-shaped extension 95 upon its top, carrying upon its under side a hardened-steel plate 96, coacting with a steel plate 97, carried by the bracket 88, by which means the pin-blank is sheared by the descent of the slide. The machine-bed is channeled, 98,to allow passage therethrough of the cutterslide in any adjusted position of the bracket.

The cutter-slide is reciprocated by the following mechanism:. Projecting downwardly IOO from the slide is a ring 99, loosely traversed by a bar 100, mounted in lateral lugs 101 intermediate the extremities of a iever 102, which is fulcrumed at one end by a pin 108 to the machine-bed and whose opposite extremity is curved and carries a roller 10-1, registering in the channel 105 of a cam N, mounted in the cam-shaft 10.

The operation of my machine is as follows: A pin-blank with an imperforate head is fed from the receptacle 79 by the slide S6 and its head clamped between the jaws of a chuck by the bolt 8T, through the action of the leversl 82 and 83 of their respective cams L and M, driven by shaft 3. The turretis then rotated two eighth-turns to carry the blank into position to be operated upon by swager A. These eighth-rotations are attained by the action of cam l upon the slide 62,whose hook 63, through pin 64, disk 65, and pawl ('58, forces the turret-ratchet T a step in advance. The blank is temporarily retained in advanced position by the registration of the reciprocating pin T in the ratchet-notch T1 until its withdrawal, occasioned by the outward reciprocation of block TG by cam J, driven by shaft The blank is subjected to the successive action of three rotary reducing mechanisms A, B, and C, which simultaneously approach and recede from the turret G, reciprocating' motion being afforded by the shafts 3 and 4,-, rotating cams l) E F, which operate the respective slides z3 7);; c of the reducing-machines. After the chuck with its blank completes its first quarter-turn the swager A begins its inward travel. r1`he orifice 21 in the swager faceplates receives and travels over the shank of the pin-blank until the nose of the chuck is reached, whereupon the plates and 16 separate, by virtue of the contact of their lugs i2 and with the projections Q8 and Q0, and allows the face of the swager to advance to the nose of the chuck. "hile the plates 15 and 1o are shown applied only to'swager A, it is often desirable to apply them to swager B.

Vlt is well known that all swagers in performing' the reducing operation intermittently rotate slightly the blank operated upon. It' therefore the blank be retained by a rigid chuck, the twist is imparted to the blank near its head, which not only disn'gures, but weakens the resulting pin. lilurthermore, the advancing swager at the moments its dies act upon the blank forces the latter slightly rearward intermittently, which requires a longitudinal cushioning' of the chuck. The desired results are obtained by the form of chuck shown in Fig. 1. As the swager advances upon the blank 106 the chuck is intermiti tently forced slightly rearward against the tension of spring-pin 3T, and simultaneously the chuck is intermittently slightly turned by the torsional action of the swager against the resistance of spring-rods 3S. The intermittent releases of the swager-dies allow the chuck to resume upon each release its original forward and upright position by virtue of springs 3o and 38.

The last-described operation has partially reduced the blank, and the next advance of the turret (ir brings the chuck above the punchingl mechanism, as shown in Fig. 1, wherein the head of the blank 106 is about to receive perforating stroke ot' the punch 54, imparted by the upward thrust of plunger 50, actuated by cam l( and its lever 5T. It being desirable that the chuck 1 be held rigid during this operation, the plunger is provided with a lug 10T, having an opening 108, which is traversed by the lower end of pin 11 when the plunger rises, thereby insuring accurate action of the punch. The next step of the turret brings the blank into position before swager B. which continues the reduction of the blank in the same manner as outlined in connection with swager A. An eighth-revolution presents the blank to the shearing mechanism intermediate the cutterplate 9T upon the top of the bracket and the plate 06 upon the lower surface of the extension 95 of cutter slide 91. The latter shears the superfluous length of the blank by the downward movement of the lever 102, actuated by cam N. The blank after advancing another eighth-turn is then operated upon by the swager C, which points the blank extremity and completes the pin.

The removal of the pin from the chuck is effected by a vertical pin 109, which projects from the machine-bed in the path of the lever 45. The contact of the latter with the pin 109 as the turret rotates from swager C throws the lever outward. The interaction of the cam-faces of head 13 and block et and spring 10T expands the chuck-jaws 30 40 and releases the pin. The pin is thereupon brushed from the jaws by contacting with a l'lat projection 110, mounted upon the elevated portion of the bed and above bolt ST.

l'laving described my invention, what I claim isY 1. A machine of the type set forth embody ing a turret and a plurality of chucks carried thereby, means for longitudinally tensioning the chucks, means for revolving the turret, a reducing means, and means for moving' the reducing means toward and away from the turret.

2. A machine otl the type set forth embodyinga turret provided with a plurality of chucks carried thereby, means for tensioning the rotary action of the chuck, means for revolving the turret, reducing means, and means for moving the reducing means toward and away from the chuck.

3. A machine of the type set forth embodying a turret having a plurality of work-holding chucks, means for cushioning the chucks, swaging means for reducing the work, and means for actuating the last-named means IOO IOS

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away from the turret during the revolution of the latter,and means for revolving said turret.

4. A machine of the type set forth embodyinga turret, a plurality of work-holding 'chucks provided with passag'es adapted to be brought into line with a perforating means, perforating means adapted to traverse the passages in the chucks, and means for operating said perforating means.

5. A machine of the type set forth embodying a turret having a plurality of work-holding chucks, means for perforating the work, means in the chucks for guiding the perforating means, and means for actuating the perforating means.

6. A machine of the type set forth embodying a turret having a plurality of work-holding chucks, pins in the chucks, means for perforating the work, means carried by the perforating means registering with the ch uck-pins for retaining the chucks against movement during the perforating operation, and means for actuating the perforating means.

7. A machine of the type set forth embodying a turret, means in the turret for holding the Work, means for revolving the turret,

slidable reducing and pointing swagers adjacent the turret, a punch adjacent and penetrating the work-holding means, and means for actuating the punch and swagers.

8. A machine of the type set forth comprising a turret embodying a work-holding chuck,

a slidable swager mounted in alinement with the chuck, and slidable plates upon the swager, and means for closing the plate as the swager advances.

9. A machine of the type set forth embodying a turret and a. plurality of work-holding chucks carried thereby, means for revolvingI EUGENE WV. MOREHOUSE.

Witnesses:

HoRATio E. BELLows, VILLIAM E. BROWN.

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