US1055964A - Milling-machine. - Google Patents

Description

R. D. AGKLEY & M. C. ABBEY.

MILLING MACHINE.

APPLICATION FILED AUG. 2, 1909.

Patented Mar. 11,1913.

yc@ 4 SHEETS-SHEET 1. 3 9651/ a l 75 l l. 5/

i m y y' 1|, n@ 2z] "ll'flq l R. D. AGKLEY & M. C. ABBEY.

MILLING MACHINE.

APPLlcATIoN FILED AUG. z, 1909.

1,055,964. Patented Mar. 11, 1913.

4 SHEETS-SHEET 2.

R. D. AGKLEY 6L M. C. ABBEY.

MILLING MACHINE.

APPLICATION FILED AUG. 2` 1909.

Patented Mar. 11,1913.

4 SHEETS-$13121 3.

R. D. ACKLBY da M. C. ABBEY.

NHLLING MACHINE.

APPLICATION FILED AUG.Z, 1909. 1,055,964 Patented Mar. 11, 1913;

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEioE.

ROLLIN D. .ACKLEY AND MARTIN C. ABBEY, 0F BATTLE CREEK, MICHIGAN.

MILLlNG-MACHINE.'

Specication of Letters Patent.

Patented )la 1'. 1] 1913.

To all whom t may concern.'

Be 1t known that we, RoLLiN D. AckLEr and MARTIN C. ABBEv,-cit1zens of the Umted States, residing at Battle Creek, Calhounl county, Michigan, have invented certain new `and useful Improvements in Milling-Ma chines, of which the following is a specification.

This invention rrelates to improvements in milling machines.

The main objects of the invention are: First, to provide an improved milling machine, which is especially adapted for use in the manufacture kof packing rings for pistons, `and the like, it being possible to produce substantially perfect' rings thereby, without hand work. Second` to provide an improved milling machine by the aid of which split rings, such as piston packing rings. may be quickly7 and economically produced. Third, to provide an improved structure of the class described whic'h may be easily and accurately adjusted for the manu facture of such rings of different dlameters.

.Further objects` and objects relating to structural details, will definitely appear from the detailed description to follow.

Te accomplis-h the objects of our invention by the devices and means described in the following specification.

The structure described constitutes one effective embodiment of our invention. Other embodiments would be readily devised by those skilled in the art.

The invention is clearly defined and pointed out in the claims.

A structure lembodying an effective and `preferred embodiment of the features of our invention is clearly illustra-ted in the accompanying drawing, forming a part of this specification, in which:

Figure 1 is a. front perspective view of a structure embodying the features of our invention, a portion of the base being broken away. Fig. 2 is a rear thereof, a portion of the base being broken away. Fig. 3 is an enlarge-d detail vertical section, taken on a line corresponding to line 3 3 of Fig. 1. Fig. t is anenlarged detail vertical section,y through the pneumatic clamp actuating cylinder and its cont-rol valve, taken on a line corresponding to line 4 1 of Fig. 3, the parts being diagrammatically arranged. Fig. 5 is a perspective view lar parts throughout the perspective viewA pivot is preferably of the base portion of the work table, parline 5 5 of Fig. 3. Fig. 6 is a detail section taken-on a line corresponding to line 6 6 of Fig. 3, showing the means for applying fric;` tion t0 the work table pivot.' Fig. 7 is 'a detail vertical section, taken on a line corresponding to line 7 7 of Fig. 2, showing the means for vertically adjusting the cut'- ters. Fig. 8 is a horizontal section, taken on a. line corresponding to line 8 8 of Fig. 3, showing details of the work table. Fig. 9 is a perspective view of a packing ring produced by our improved machine.

In the drawing. the sectional views are taken lookingin the direction of the little arrows at the endsI of the section lines, and similar numerals of reference refer toX` simi several views..K i.

Referring to the drawing, the carriage bed 1 is supported on` a suitable pedestal 2. The bed 1 is provided with a w'ay 3 for the carriage 1, which is reciprocatingly mounted thereon. The carriage feed preferably consists of a segment 5 on the shaft 6, which is provided with a hand lever 7, the carriage being provided with a rack 8 with which the segment meshes. The work table is mounted on the carriage by means of the pivot 9. the pivot preferably being secured to the base portion 10 0f the table. The pivot 9 is located toward the front. edge of the table. `The top portionll of the table is adjustably mounted upon the base portion 10, the base portion 10 being preferably provided with a way 12 for the top portiom--see Fig. 1. The top portionl 11 is adjusted through the screw 13, which is revolubly mounted on the base portion 10 to engage a downwardly-projecting lug 14 on the top portion, a slot 15 being provided' in the base portion for the lug-, see Fig. 3. By this arrangement, the top portion may be adjusted relative to the table pivot 9, thus increasing or diminishing its eccentricity, as described. The movementof the table on its controlled by adjustable stops 16, av downwardly-projccting stop 17 on thc table' being arranged to coact there with, the carriage being slotted at 18 to receive this stop, see Figs. 3 and 5. The stops 16 are preferably in the form of set screws, as illustrated. The table is swungon its 'pivot by means of the lever 19, see

Fig. l. .The spindles 2O of the cutters 21 are preferably arranged to be adjusted laterally and axially relative to each other. The spindles are provided with suitable pulleys 2:2 and are carried by suitable bearing supports, as Q3 and `24, which are adapted to be vertically adjusted, the adjustment being preferably accomplished by providing 'the supportswith shanks 25 which are arranged in the clamp-like arms 26 on the table bed, the

'shan ts being tapped to receive the adjusting .screws 27, which are provided with micrometer or gage nuts 28. These parts, being yof, common construction, will be Ireadilyunderstood. The support 24 is preferably axially adjustable, it being made up of two adjustably related parts, provided with an adjusting screw A29. As this feature y is'also one of common vconstruction and will be readily understood, we do not illustrate or describe the same in detail herein, as any vertical adjustment of the cutters relative v-to each other will answer the purpose.

. To enable the operation of the machine to be more rapid and to prevent accidents, such as injury to the work, the work car- 'riage 4 is preferably provided with a pair j disk or plate of proper size to it the ring.

This holderf'is detachably secured as by means of the screws 35, which are counter ysunk into the platej seas not to interfere l with the clamp 36. Then the machine is to be adjusted for cutting rings of different dia-meters, this work holder is removed, andI a holder of proper diameter to iit the rings to -be cut placed upon the table. As the work holder 84 is atthe forward end of the table, the clamp 36 is preferably provided with a supporting block 37 of the same thickness as the' work holder, thus relieving the clamp of strain when it is clampeddown upon the work. I

The table is cut away at 3S, and the work holder isnotched at 39 to receive the cutters. y Tie clamp 36 is preferably pneu-v `maticadly operated. Te preferably accom# plish this by mounting` the clamp on the rod 40iof the piston 4l. The piston cylinder 4Q issupported on, the yyoke-like frame 43, which is carried by the table. guide rod 44 is preferably provided for the clamp, the rod being'arranged vertically through a hole provided therefor in the cylinder 42. The delivery of air to the cylinder 42 is preferably controlled through a valve con `.valves 54.

sisting of the valve casing 45, which is connected by the passages 46 and 47 to the. ends of the cylinders 42. valve 4S having four spaced heads 49 thereon. The air supply pipe 50 is connected to the casing 45 at a central point between the passages 46 and 47, and within the stroke of the central heads. The valve casing is provided with two exhaust ports 51, which are always between the end heads and the adjacent central or inner heads. The valve 4S is provided with a pair of passages 52 opening at the ends thereof and between t-he central pair of heads. At the ends of the valve casing are exhaust ports'53, which are controlled by the inwardly-opening By this arrangement, as the valve 48 is shifted, the ends of the cylinder 42 are alternately connected to the air sup ply 'pipe 50 and to one of the exhaust ports 5l.

Then it is desired to operate the clamp,

the top valve 54.is opened, which, allowing the air to escape from that end of the valve through Vthe port 51, varies the pressure on the valve and causes the same to shift upwardly, thereby connecting the passage 46 with the air supply and the passage 47 with the exhaust. To release the clamp, the bottom control valve 54 is opened, allowing the air to escape from the lower end of the piston casing 45, which varies the pressure on the valve and causes it to shift downwardly admitting the air to the lower end of the cylinder 42 and thus raising the clamp.

j In preparing for the work, the spindles are adjust-ed so that the lap inthe ring can be cut to the desired width. In operation, the work table having beenadjusted to the diameter of ring to be cut, the work is placed on the holder and the clamp actuated. The work table is then shifted against one of the stops 16 and the carriage advanced and retracted. The work table is then shifted against the other stop 16 and the carriage again advanced and retracted. This completes the operation of splitting the ring and forming the overlapping portions 55 thereof, the angle of the ends 0i the overlaps and of the shoulder portions 56 being perfectly cut so that no further work is required. y

The cutters are so adjusted that their inner faces, or the inner edges of the teeth are in the same plane, sothat the rinfr is sev ered and cut away to form the overaps and the openingI portions cut on the salne angle by the two operations. then it is desired to cut rings a different diameter, the top 0r work holder portion of the table is adjusted through the screw 13 so that the work, such asrings of different diameters, is properly supported to be swung into proper position relative to the cutter. Heretofore, it has been the practice, in the manufacture of these rings, to cut the notches forming the ln the casing 45 is a f overlaps on a machine,irst, one'n'otch and of b *so v-an embodiment which we have found prac- Well as broadly Aor friction device for the table ears 58 with which the 'ably securedl to said table,

then the ot-her, by separate operationsand then finish by hand, which 4skill and considerable time, and Was also very tiring laboron account of the necessity of frequently collapsing the ring to test the saine.4 By` our improved machine, when the same .rings of a given size canbe cut without further "adjustment, and the kWork does not lrequire any particular skill. To prevent the parts becomin accidentally shifted, We preferably provi e a brake consisting of a friction ring 57 arranged uponthe head of the ivot 9, the ring being split on one side an provided with laterall projecting set screws 59- engage, so th-at, by adjusting the same, the ring may be clamped-upon the headl of the pivot to secure the 'desired' friction. 4

As previously stated, our improved milling machine enables the rapid production of packing rings, and further the rings may be said to be perfectly formed, so far as the 'joint thereof is concerned.

Our invention has the further advantage eing quite simple and economical in structural' details. Ve have illustrated our improvements in vtical in use. We are,'hoWeVer', aware that our improvements are capable of very great modification in structural details, but. We'

deem it unnecessary to illustrate such modifications in order to fully disclose our invention, and We wish to be understood as claiming the same in the form illustrated as within the scope of the appended claims.

Having thus described our invention, What We claim as new and desire to secure byLetters Patent is: f 4

l. The combination with a cutter, of a reciprocating Work carriage; a work table;I

a pivot on said carriage for said Work table, said Work table comprising a base, portion arranged on said pivot and a top portion arranged on said base portion to be adjusted -thereon 'transversely relative to said pivot; adjustable stops for limiting the throw of .said table on its said pivot; and a Work clamp carried by said top port-ion of said work table whereby the Work is supported to permit its being presented to said cutter in. different positions.

2..The combination with a cutter, of a.

reciprocating Work carriage; a Work table; a cylindrical platelike Workholder removhaving slots in one side thereof; a Work clamp;'aI detachable supporting block therefor, said block being the same thickness as said Work holder; a clamp frame carried by said table;

and@ pneumatic actuating means for said 1 required 3.l The combination of 1s once adjusted, ,as manyl as desired,-

- 1n a plane at right lright angles to the axisof said which is pivotally clamp plate carried by said frame and connected tosaid plate between saidfblock and said Work holder.

lower cutter arranged in Adifferent vertical planes,` of awork feed carriage lmounted to travel in a plane between and at right angles to the axes of said cutters, a Work table comprising a base portion pivoted on said carriage, the axis of the pivot being at right angles tothe plane of travel of the carriage, a top portion arranged on said base portion to be adjusted toward and from said pivot angles thereto, stops for limiting the swing of said Work table on its pivot, and a Work clamp carried by the top portion of said table.

4. They combination of lower cutter arranged in planes, of a Work feed carriage mounted to. travel in a plane between and at right angles to the axes of said cutters, a Work table comp rising a base portion pivoted on' said carrlage, the axis of the pivot being at right an upper and a `angles to the plane of travel of the carriage, a Work holder top portion for said table mounted on said base portion to be adjusted thereon in a plane of the said pivot, and adjustable stops for limiting the-swing of the said Work table on its said pivot, whereby the table maybe shifted from one 'stop to the other on succeeding feed movements of the carriage, to present the Work to said cutters, for the pur'- pose specified.

5. The combination of cut-ter; a Work feed carriage mounted to travel to and from the cutter and in a' plane substantially at cutter; a Work table comprising a base portion; a pivot on said carriage for said work table disposed substantially at right angles to the plane of travel of the carriage, the base portion of the table being mounted on said pivot; a Work holder portion mounted on said base portion to be adjusted thereon transversely relative to its sald pivot; stops for limiting the throw-fof said table on its said pivot, said table bfeing freely movable between said stops; andfa Work clamp carried by said work holder portion of said Work table whereby the Work table may be shifted from one of said stops to the other on succeeding feeding movements of the carria e to present the Work to the c'utter at di erent angles.

6. The combination of a cutter, a Work .feed carriage mounted to travel to and from the cutter and in a plane substantially at right angles to the axis of said cut-ter; a Work table comprising two members, one of mounted on 'said work carriage, to swing in a plane substantially parallel to the plane of travel of the carriage, the. other being adapted to 'support an upper, and a dierent vertical at right angles to the aXis i the Work and being mounted on the pivotally supported member to be adjusted thereon transversely relative to its pivot and in a plane parallel to the plane of travel of the Carriage; and stops for limiting the swing of the table on its pivot', said table being freely movable on its pivot. between such' stops.

In witness `whereof, we have hereunto set our hands and seals in the presence of two 10 Wl'ltnesses l HnRRY J. Simmer-1min,l LoRELI. N. CURTIS.

Images