USRE12593E - Holder for milling-machines - Google Patents

Description

No. 12,-593. N --REISSUED JAN. 8,- 1907. H. H. VAUGHAN. HOLDER FOR MILLING MACHINES.

APPLICATION FILED JULY 12, 1906,.

, 2 SKEETSSHEET 1.

MIN.

55 Waawr f -f We 5 70/.

Noj. 12,59s. REISSUBDJAN'.8,1907.

- H. H. VAUGHAN.

HOLDER FOR MILLING MACHINES.

APPLICATION FILED JULY 12, 1906;

2 SHEETS-SHEET 2.

' wwwf' Wm UNITED STATES, PATENT omuon.

HENRY H. VAUGHAN, OF MONTREAL,

QUEBEC, CANADA, ASSIGNOR TO THE RAILROAD SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A COR- PORATION OF ILLINOIS.

HOLDER FOR MILLING-MACHINES.

Reissued J' an. 8,1907.

Original No. 819,961, dated May 8, 19 06. Application for reissue filed July 12, 1906. Serial No. 325,973.

To aZZ whom it may concern:

Be it known that I, HENRY. H. VAUGHAN, a citizen of the United States, residing at Montreal, Province of Quebec, Dominion of Canada, have invented a certain new and useful Improvement in Holders for Milling Machines; and I declare the following to be a full, clear, and exact description of the in vention, such as will enable others skilled in lo the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. v

My invention relates generally to millingmachines, and more particularly to mechanism for supporting the articles in position to be engaged by the cutters.

In the use of milling-machines for operating upon articles of a size less than the range of movement of the supporting-table relatively to the cuttersas, for instance, in the manufacture of channelins for uniting electrical conductors-it is desirable to support upon the table a plurality of rows of alined articles, the number in each row corresponding to the number of cutters in the gang and.

the number of rows being determined by the extent of relative movement possible between the table and the gang of cutters.

The object of my invention is to provide a milling-machine comprising a gang of cutters and a relatively movable table upon which the articles to holding mechanism for receiving a number of 3 5 articles and retaining a plurality thereof in -alinement with each cutter of the gang, so

that as the supporting-table and cutters are relatively moved each cutter will engage in succession a plurality of articles, each reciprocation of the table relative to the cutters being thereby utilized to out several articles, and consequently avoid the necessity of returning the table to its initial position after a single articlehas passed the corresponding cutter.

A further object of my invention is to pro- ,vide the supporting-table of a milling-machine with means for removably holding one or more magazines, each of which is adapted to contain a plurality of articles to be engaged by the cutters.

A still further object of my invention is to provide work-holding mechanism of the charimproved holder and so much be out are supported, withacter described for milling-machines, which will be simple in construction, inexpensive manufacture, and eflicient in operation.

My invention generally described consists in a holder adapted to be secured to the table of a milling-machine and having means for removably retaining one or more magazines, each of which contains a plurality of articles spaced apart distances corresponding to the spaces between the cutters of the gang.

, My invention willbe more fully described hereinafter with reference to the accompanying drawings, in which the same is illustrated as embodied in a convenient and practical form, and in which I v Figure 1 is a side elevational view of my of a millingcutter as it is necessary to show its connection therewith; Fig. 2, a plan view of my improved holder and a portion of the table of a milling-cutter; Fig. 3, an elevational view looking from the left in Fig. 1; Fig. 4:, an elevational view-of one of the magazines; Fig. 5, a plan view of one of the magazines; and Fig. 6, a cross-sectional view on line 6 6, Fig. 4.

Similar reference characters are used in the several figures of the drawings to designate similar arts.

Referenceetter A indicates a shaft upon which are fixed oneor more cutting-disks 5, b b 7), and 6 The cutting-disks are spaced apart by means of collars a a a, and a able bearings, one of'which is indicated at A at the right of Fig-3. The bearing A is shown as having a pointed end fitting within the recess formed in the reduced end a, of the shaft. The cutters are spaced at the desired distance from the opposite ends of the shaft A by means of collars a a, interposed between the outside cutters of the series, and nuts to, screwed upon the ends of the shaft. The shaft A may be rotated in any preferred manner well known in the art of milling-cutters.

A table C is supported upon the base of the machine and moved relatively to the cutters in any well-known manner. The table C may conveniently be provided with inwardly-proj ecting flanges c a, forming a dovetail channel to guide the table upon the supporting-base. The table C is provided with parallel grooves 0, preferably extending at The shaft A is journaled upon suitsuitable means-as,

right angles to the cutter-supporting shaft A. A holder D is secured to the table C by any, for instance, by bolts d the heads (1 of which are located in the grooves c, as clearly shown in Fig. 3. The bolts (1 extend upwardly through openings in flanges d and d projecting from the-opposite ends of the holder D. Nuts are secured upon the ends of the bolts, whichlextend above the flanges d and (1 and, if desired, washers may be interposed between the uper surfaces of the flanges and the nuts. The older D is provided with a plurality of channels D, D and D extendingparallel to the cutter-supporting shaft A. The

. channels are provided with overhanging flanges d to retain within the channels the magazines, The upper surface of the holder D is provided With a series of parallel grooves g, g 9 g, and 9 located in alinement with the several cutters b, &c. Each of the channels D,D and'D is adapted to receive -a magazine'F F F Y Each of the magazines is pro vided with a central channel F. The flanges formed at either side of the channel'F are provided with a series of sockets to receive the articles which are to be operated upon by the cutters. In the present instance the recessesf, andffare so shaped as'to receive U-shaped channel-pins which have been previously formed with the desired. .exterior contour and which are to be engaged by the cutters, and thereby given the de sired interior crosssection.

By reference to the drawings, particularly Figs. 4 and 5, it will be seen that the recesses or sockets in the flanges of the magazines are provided with inwardly-projecting edges to overlie the channel-pins in order to securely retain them in position to be engaged by the cutters. It will also be observed that the recesses aretapered to conform to the outer vsurfaces of the channel-pins, which are inthe holder D.

serted therein preparatory to being milled.

In Fig. 2 the magazines F .and F contain channel-pins which have not been engaged by the cutters, Whilemagazine 'F contains channel-pins which have been operated upon by the cutters. The magazines may be conveniently provided with means, such as the the same in and removing from the channels D, D and D formed in In order that the magazines may be so located in the channels in the holder that the grooves f, &c., may register with the grooves g, &c., a stop is secured to the side of the holder opposite to that in which the magazines are inserted. This stop is shown as consisting in a cleat E, fastened to the holder bymeans of screws e. The cleat is provided with a flange which projects above the channels D, D?, and D and is engaged by the ends of the'magazines when they are inserted subsequently to be described.

' in the channels. The magazines are retained in engagement with the cleat E' by latches 'E, E and E. These latches are shown as provided with openings near their upper ends 1 which surround screws e the heads of the latter extending across the openings in the latches, as clearly shown in Fig. 1. Near the lower end of each latch is a set-screw e, which engages the adjacent surface of the holder D. I

The number of channels to receive the magazines may be being limited by the extent of the relative movement between the table and the gang of cutters. The number of cutting-disks in the gang may also be varied, the maximum number being limited by the length of the shaft and by the width of the movable table. The

rooves g, &c., in the upper surface of the holder and the sockets f &c., in the magazines should of course correspond with the number of cutters and must obviously be spaced 'apart distances corresponding to the spaces between the cutters.

The operation of my improvement, which will be readily understood from the foregoing description, s as follows: The magazines before insertion in the holder are filled with channel-pins that is, a channel-pin is located in each of the socketsf,f ,f ,f and formed through the flanges .at either side of the central passage F. The several latches E, E and E are slid downwardly so as to permit the magazines to. be inserted in the grooves D, D and D The magazines are prevented from vertical displacement by the overhanging flanges (1. After the -magazines'have been inserted in the holder the latches E, &c., are forced upwardly around the screws 0 so that the upper end of the latches engage the ends of the magazines. The set screws 6 are then turned so as toengage the surface of the holder, and thereby rock the latches about the heads of the screws 0 as fulcrums andforce the magazines into contact with the cleat E. The relative location of the sockets in the magazines and the'grooves g, &c., in the holder'is such that when the magazines are properly secured within the channels in the holder the channel-pinswill register with the grooves g, &c. The table C is then moved relatively to the rotating cutters, so that the channel-pins in the several magazines are successively engagedby the corresponding cutting-disks. After the table has 'completed its movement relatively to thegang of cutters it'is returned to the starting-point, where the magazines may be removed from the holderby unscrewing the set-screws e andpermittingthe latches E, '&c., to drop below the path of movement of the magazines out of the respective channels in the holder. Other magazines, the sockets in which have been filled with channel-pin 5,

varied, the number only then inserted in the holder and locked in place by means of the latches. The reciprocation of the table C is then repeated and the channel-pins operated upon by the gang of cutters.

From the foregoing description it will be observed that my improvemeht enables a number of articles to be successively engaged by each cutter of a gang, thereby utilizing a single reciprocation of the table relatively tp the gang of cutters to cut a number of arti- 0 es.

While I have described more or less precisely the details of construction, I do not 'wish to be understood as limiting myself thereto, as I contemplate changes in form, the proportion of parts, and the substitution of equivalents, as circumstances may suggest or render expedient, without departing from the spirit of my invention.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a multiple workholder for milling-machines having a channel therein extending transversely to the direction of its movement and also having a plurality of parallel grooves formed in the upper surface thereof, and extending in the direction of movement of the holder, a magazine engaging said channel and adapted to support articles in register with said grooves.

2. The combination with a multiple workholder having a channel extending transversely to its path of movement, of a magazine for removably engaging said channel, means for supporting a plurality of articles upon said magazine, a stop carried by said holder at one end of said channel, and an adjustable latch carried by said holder at the opposite end of the channel adapted to engage said magazine and retain the same in contact with said stop.

3. The combination with a movable multiple work-holder having a plurality of channels therein extending transversely to its direction of movement, a plurality of magazines engaging said channels and each adapted to support a plurality of articles, a stop carried by said holder at one sidethereof and projecting into alinement with said channels, and an adjustable latch carried by said holder at the end of each channel opposite to said stop, said latch being adapted to engage and retain the corresponding magazine in contact with said stop.

4. The combination with a multiple workholder for milling-machines, of a magazine extending transversely across said holder and having a plurality of parallel grooves therein extending longitudinally with respect to said holder, said grooves adapted to hold articles therein, and means for removably supporting said magazine upon said holder.

5. The combination with a multiple workholder for milling-machines, of a plurality of magazines extending transversely across said holder and each having a plurality of grooves therein extending longitudinally with respect to said holder, each of said grooves adapted to .hold an article, and means for removably supporting said magazines upon said holder.

6. In a milling-machine for making channel-pins, the combination with a movable multiple work-holder of a magazine extending transversely to the path of movement of said holder and having a plurality of grooves therein extending parallel with the path of movement of said holder, each groove adapted to hold a channel-pin, and means for removably supporting said magazine upon said holder.

7. In a milling-machine for manufacturing channel-pins, the combination with a mul tiple work-holder of a magazine extending transversely to the path of movement of said holder and having a plurality of grooves therein extending parallel with the path of movement of said holder, each groove having inwardly-proj ecting edges to retain the channel-pin therein.

8. In a milling-machine for manufacturing channel-pins. the combination with a multiple work-holder, of a magazine extending transversely to the path of movement of said holder and having a plurality of tapered grooves therein extending parallel with the path of movement of said holder.-

9. In a milling-machine for manufacturing channelpins, the combination with a multiple work-holder, of a magazine extendin transversely to the path of movement of sai holder and having a plurality of tapered grooves therein extending parallel with the path of movement of said holder, each groove having inwardly-projecting edges to retain a channel-pin therein.

HENRY H. VAUGHAN.

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