US440304A - collins - Google Patents

Description

(No Model.) 4'sheens-sheet 1.

`R. G. COLLINS. ROTARYv SWAGING MACHINE.

No. 440,304. Patented Nov. 11,1890.

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ROTARY SWAGING MACHINE. l No. 440,304. Patented NOV. 11, 1800.

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R. G. COLLINS. ROTARY sWAelNe MACHINE.

No. 440,304. Patented Nov. 11, 1890.

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(No Model.) 4 Sheets-Sheet 4.

R. G. COLLINS. ROTARY SWAGING MACHINE.

No. 440,304. Patented Nov. 11, 1890.

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UNITED STATES PATENT EEICE.

REUBEN G. COLLINS, OF DOLLAR BAY, MICHIGAN, ASSIGNOR-TO THE TAMA- RACK OSCEOLA COPPER MANUFACTURING COMPANY, OF SAME PLACE.l

ROTARY SWAGING-NIACHIN E.

SPECIFICATION forming part of Letters Patent No. 440,304, dated November 11, 1890.

Application filed Iuly 17, 1890. Serial No. 359,100. (No model.)

T all 1071/0771/ if may 0011100772.' t-hus neutralize or check the tendency of the Be it known that I, REUBEN G. COLLINS, a citizen of the United States, residing at Dollar Bay,in the county of Houghton and State of Michigan, have made certain new and useful Improvements in Rotary Swaging-Machines, which improvements are fully set forth and described in the following specilicat-ion, reference being had to the accompaio nying four sheets of drawings.

This invention relates to that class of machines for drawing down rods of metal in which swiftly-rotating swages are employed, these swages or dies being forced together at stated times by contact with a series of rollers placed in their annular path.

Heretofore, so far as I am familiar with this class of machinery, it has been necessary to stop the revolving head or die-carrier whenzo ever necessary to bring into use another set of dies, thus wasting more (or less time and increasing proportionately the cost of the work performed; but in my present improved form of rotary swaging-machine such changes 2 5 of dies may be effected without stopping the machine or hindering its work.

Another serious defect in this class of machines has existed in the arrangement of the series of rolls which engage the hammers to move the dies or swages into operative contact with the Wire. A single series of rolls has been employed, which when rapidly engaged by the revolving hammers are carried forward by the rolling contact of said hammers, and in consequence the blow of said hammers is prolonged, instead of being a short quick stroke, as is desirable. This defect I overcome by providing two series (of equal number) of rolls arranged in concentric circles, those of one series being in radial alignment with those of the companion series. The rolls of the inner series receive the impact of the hammers, while the rolls of the outer series are backed by a solid ring, against which they bear and roll while in use. This arrangement of rolls causes each pair to act practically as a pair of gears, and when the rotary hammers engage the inner rolls and tend -to carry them forward the outer rolls, 5.o being reversed in their direction of rotation, seek to travel in the backward direction, and

inner rolls to travel with the hammers.

In carrying into effect my improvements already referred to I have made various other 5 5' improvements in the details of my rotary sWaging-machine, all of which are described hereinafter.

My invention will be best understood by reading the following specification, in connec- 6o tion with the annexed drawings, in which- Figure I is an elevation of a sWaging-machine of my new construction, largely in vertical section; and Fig. 2 is a similar view with the revoluble head that carries the dies and hammers rotated a quarter of a revolution and with the mechanism that operates the turret-head or die-carrier removed. Figs. 3 and 4 are respectively front and rear views of said machine. Fig. 5 is an inner face View 7o of one of the roller-supporting rings, and Fig.

6 a cross-section of the same on line a: on Fig. 7 is a perspective View, considerably enlarged, of one of the roller-shafts 3l. Fig. 8

is an enlarged sectional view of the end of lever 53, showing also the groove-cam 55, by which said lever is moved.

In the drawings, IO denotes the supporting frame or standard of my machine. (Here shown as a hollow casting with suitable base, 8o and bored at its upper portion to provide a bearing for the spindle 1l.) That portion of said spindle projecting to the rear of the machine (the right hand, as shown in Figs. 1 and 2) is reduced in diameter, and has securely 85 keyed thereto a driving-pulley l2, which is preferably of considerable weight and serves as a balance-pulley.

Secured to the front of the machine-stand by bolts 13 is an annular casting 14, that is 9o bored centrally to provide a cavity coincif dent with the opening in the stand l0, that is to receive spindle 11, and said annular casting is also connterbored at its exposed end, as shown in Figs. l and 2, to receive the roller mechanism which I have described below. Spindle 11 is held against longitudinal movement in one direction by a shoulder 15, thatv abuts the stand, and also by a ring-section 16, secured to said spindle at the rear end. Ioo The front end of the spindle (left hand, as shown) is formed with an enlarged head 17,

that is split lengthwise, and in the chamber or cavity thus provided is located the turrethead or die-carrier 18, that forms one of the important features of my invention. This turret-head is axially supported on a screw 19, that may be introduced through either one of a series of holes 2O in the ring-section. 14. The two faces of said turrret-head are formed with central hubs 21, that are cut as pinion-gears, and said head is provided with a series of radial transverse slots, in which are located the several sets or pairs of swages or dies 22, said dies being held against accidental displacement by a small lateral slot in the turret-head, which receives a rib 23v on the dies. Said dies are made of two blocks of steel, having their confronting faces provided with semicircular grooves, which when brought together form a two-part swage of the size to which it is desired to draw down the rod of wire.

The openings in the several sets of swages are of dierent sizes, and are preferably arranged in such order that they may be successively brought into use, from the largest to the smallest opening, thus enabling the operator to introduce the rod first to the swages with the largest opening, and then by bringing into use the next smaller in size to draw down said wire until the desired reduction in diameter has been effected. The enlarged spindle-head 17, which carries the turret-head,is also slotted at right angles to said turret-head to receive what I term hammers 24, whose inner ends rest on the ends of the set of dies that are in operative position, and whose outer ends project slightly beyond the perimeter of the spindle-head 17, as best seen in Fig. 3 of the drawings. Hammers 24 are capable of limited endwise movementin their slots or ways, but are prevented from leaving the head 17 (by lateral displacement) by a centrally-perforated plate 25, that is screwed to the end of said head. This plate is shown in Figs. l and 2, but is removed in Fig. 3, in which latter gure may be seen the holes 26, that receive the screws by which said plate is clamped to said head.

It will now be understood that the spindle 11 as it rotates in its bearings carries with it several sets of swages or dies held in the circular holder 18, and that the rotation or partial rotation of said circular holder on its axis 19 will ybring either set or pair of dies into proper position to receive and act upon the wire to be pointed.

Within the fixed annular casting 14 are two systems of rollers arranged in concentric circles, the rollers of the two systems being in contact. Those of the outer system 27 bear at their periphery against the outer wall of the counterbored ring-shaped head 14, or

preferably against a steel bushing 27', and

rollers and are forced inward, carrying with them the swages that are between said hammers. The described rollers are supported between two ring-disks 29, (see Fig. 5,) having radial channels 30, in which the squared ends of the roller-journals 3l are held. The outer and inner disks 29 are securely tied together by rivets or screws 32, and the rollers and their supports (ring-disks 29) are free to travel or roll forward in the counterbored head 14. As the hammers 24 pass around and engage rollers 28 of the inner system,the said rollers 28 are at first inclined to travel with said hammers; but the contact of the perimeters of the inner rollers with the perimeters of the outer rollers acts, as I have stated above, substantially like a pair of gears and reverses the direction of rotation of the outer rollers, thus checking the forward or traveling movement of the complete systems of rollers and permitting the hammers to pass on beyond the inner rollers much quicker than where only a vsingle system of rollers is provided.

To prevent the rollers and their supporting-rings 29 from leaving their place in the head 14, I provide a ring-disk 33, which is firmly fastened to the outer face of said head by screws 34.

To limit the endwise movement of hammers 24, I provide in the outer face of each a depression or hole to receive the tapered end of screws 35, tapped into the plate 25, said depressions or holes being somewhat larger than the screw ends, being practically slots that allow a limited movement of said hammers. l

I have stated above that the die-holder 18 may be partially rotated to bring into service either ot' the several sets of dies.

I have provided what I believe to be novel mechanism for rotating said die-holder, consisting of a rod 36, arranged to move longitudinally through the center of spindle 11 or through a tube, hereinafter described, and bearing an offset, forked end 37, that straddles the die-holder and is formed with rackteeth that engage the toothed hubs 21. When rod 36 is moved longitudinally, the racks on fork 37 serve to partially rotate the die-holder on its axis 19, and thus bring any desired pair of dies into position between the hammers.

To move rod 36 longitudinally, I provide the following-described mechanism: On the outer end of said rod, at the rear of the machine, are fixed collars 38, between which is a loose collar 39, to which is trunnioned a forked lever 40, that is fulcrumed, as here shown, to a link or short arm 41, attached to a rigid partof the machine-frame. The upper end of lever 40 is forked and trunnioned to a loose collar 42 on a rod 43, supported in bearings 44 and capable of both lengthwise and rotary movement. At each end'of loose collar 42 is a fixed collar 45. When rod 43 is moved lengthwise in its bearings, lever 40 acts to loo `rotate the die-holder.

correspondingly move the :rod 36, and thus An operating-handle 46 is provided on rod 43, of such shape that said rod may be easily moved in either a rotary or longitudinal direction.

I have found it desirable to provide a locking device by means of which the die-holder 18 may be positively held against rotation when the dies are in service, and which may also be operated Without stopping the machine. The die-holder is formed with a series of notches 47 in its periphery, corresponding in number with the pairs of dies. Pivoted in the split head 17 is a dog 48, having at one side a projection 49, that may enter the said notches 47. Said dog is connected at its inner, end with a tube 50, that passes through the spindle 11 and surrounds the rod 36, above described. A slight endwise movement of tube serves to withdraw the projection 49 from the notch in thedie-holder, as will be understood by referring to Fig. 1 of the drawings. Tube 50 bears at its exposed end a loose collar 51, supported on each side by lixed collars 52, and trunnioned to a lever 53, substantially like the lever 40, first above described. The upper end of lever 53 terminates with a projecting stud 54, that engages a groove-cam 55 on the rod 43, said cam being held against endwise movement by xed bearings that also serve as bearings for rod 45. When said rod 43 is rotated a half-turn, the lever 53 is rocked on its fulcrum, and thus moves tube 50 and dog 48, leaving the die-holder or turret-head 18 free to be rotated to bring into service a new set of dies. After the described adjustment of said dieholder has been made the operator grasps handle 46 and partially rotates rod 43 and the cam 55, (which is splined on said rod,) when the projection 49 on dog 48 enters the coincident notch in the die-holder and again holds it against accidental displacement.

In Fig. 8 I have shown the stud 54, at the upper end of lever 53, arranged as a springpressed rod, this form being desirable where a considerable movement of lever 53 is required, as the spring acts to force the stud outward as the lever swings out of vertical alignment, and insures a more perfect connection with the cam than would result if the stud was formed as a rigid part of the lever.

Inasmuch as the revoluble die-holder, dog, and rack mechanisms are largely concealed, I have found it desirable to attach to the rod 43 an index, by means of which any disired pair of dies may be quickly brought into position for use. This may be done by attaching to rod 43 a collar having an arc-shaped flange 57, which, as said rod is drawn forward to rotate the die-holder 18, abuts one of a series of stops 58, that are hinged to a fixed part of the machine and are capable of being raised out of the way or lowered into the path of said flange 57. If desired, the ends of said stops may be round and of sizes corresponding to the openings iu the several sets of dies.

When it is desired to bring into service dies of a certain size-as, for example, one-quarter of an inch in diameter-it is only necessary to drop into the path of flange 57 the stop having a quarter-inch end or, if preferred, said stops may have stamped upon them the size of the dies which are to be used with them.

I have described two concentric series of rolls for operating the hammers; but it is obvious that inasmuch as only the inner series engages said hammers my turret-head dieholder could be used with saidV inner series alone; but I prefer to use the double form shown for the reasons stated. It should also be noted that said double system of rolls could be successfully used with rotary swages of the old form-that is, without my revoluble dieholder.

My machine as a whole occupies but little floor-space, is not expensive to produce, and is so planned that all its adjustable parts are easily controlled by a single operator.

Having` described my invention, I claim- 1. In a swaging-machine, aspindle bearing a revoluble die-holder in turret-head form, the axis of said die-holder being transverse to the axial center of said spindle, as and for the purpose specified.

2. In combination with a spindle, a revoluble die-holder located therein with its axis transverse to the axial center of said spindle, said die-holder bearing in radial peripheral slots a series of two-part dies, substantially as and for the purpose specified.

3. In a rotary swaging-machine, two concentric series of rolls, those of the inner series being in contact with those of the outer series, as set forth, the journals of said rolls being held in and between two radially-slotted ringdisks, substantially as and for the purpose specified.

4. In combination with a spindle bearing a pair of dies movable in a direction transverse to the axial center of said spindle, a corresponding pair of hammers, as set forth, and two concentric series of rolls, as specitied,the rolls of the inner series being in the annular path of said hammers, as and for the purpose specified.

5. In a swaging-machine, in combination with a counterbored head 14,two concentric series of rolls supported in radially-slotted rings, as set forth, a bushing 27 between the outer series of rolls and the inner wall of said head, and a rin g-plate secured to the outer end of said head, all being substantially as and for the object set forth.

6. In a swaging-machine, aspindle bearing a revoluble die-holder in turret-head form whose axis is at right angles to the axial center of said spindle, a pair of hammers supported in said spindle parallel with the axis of said die-holder, and a series of rolls concentric with said spindle located in the annular path of said hammers, substantially as and for the purpose specified.

7. A spindle bearing a revoluble die-holder,

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with its axis transverse to the aXial center of said spindle, said die-holder being notched at its periphery, as set forth, a dog with a projection that maybe entered in either of said notches, and mechanism, substantially as described, for moving said dog into and out of operative engagement with said die-holder, for the purpose specified.

8. In a suitable supporting-frame, in combination, a spindle bearing a revoluble dieholder Whose axis is transverse to the axial center of said spindle, said die-holder being formed with projecting hubs cut as piniongears, a rod centrally located in said spindle, having its inner end forked and formed as racks that engage said hubs, and mechanism, substantially as described, for moving said rod and its fork longitudinally, for the purpose specified.

9. In combination with aspindle bearing a revoluble die-holder, rack and pinion mechanism, as set forth, for partially rotating said die-holder, and mechanism for moving the rack-rod longitudinally, consisting of a rod 50, parallel with the spindle and connected to said rack-rod by a lever, substantially as Y described.

l0. In combination with a spindle bearing a revoluble die-holder Wit-h notched periphery, a dog adapted to be moved into and outof engagement with said notches, a tube connected to said dog, centrally located in said spindle, a rod 50, bearing a groove-cam, as set forth, and a lever connecting said cam With said tube, substantially as and for the purpose specified.

ll. In combination with swaging mechanism of the form described, rod 50, capable of both rotary and longitudinal movement, lever-connections, as set forth, for connecting said rod with said swaging mechanism,.and mechanism, substantially as specified, for limiting the longitudinal movement of rod 50, for the purpose specified.

REUBEN G. COLLINS.

Vitnesses:

WM. P. HARLOW, JOHN T. REEDER.

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