Патент USA US2407472код для вставки
Sept. A10, 1946. _ Ü R. BURK ‘ ROTARY ToòL ADAPTER v Filed Deç. T1, 1944 ' 2,407,471 Patented sept. 1o, A194.6 2,407,411 ` ' fr f OFFICE UNITED, STATES v . «2,407,471 y ï .ROTARY TooLnnAr’rEa Y _ Robert Burk, Brazil, Ina., assigner' kor :one-halma W. C.'Brockmeier, Brazil, Ind., :and/.one-.half tor M. R..Harding, Greenville,Mich. ‘ ‘Application Deeemberil, 1944,'s- er'iarNo. vl567.676 2 Claims. The invention relates-to a milling machine at tachment, ‘and more `especially to a rotary-tool adapter 'for-use on Aa milling machine. (01.7.279-¿103J V,Similar l'reference ‘characters indicate corre sponding parts vtl?iroughout the several views in the drawing. ' l ‘ , The primary 'object' of the invention is the pro# vision of an adapter `of >this character, 'wherein ‘the'tool to "b'e‘used‘in‘the "milling` machine is ap plied in the Jconventional manner, and when it Referring tothe-¿drawing infdetail, A designates generally a portion `ofthe adapter-in its entirety, amillingïma'chine, -for drilling, reaming, spot fac Vri‘ransversely of- the body I0' is lthe drift hole constructed-in accordance with the invention, and is ‘practically conventional in its `complete »exter 'is ¥required to removeithe tool, thisA being accom- y nal appearanc'eywith those now in use 1in milling ‘plishe‘d lwithout removing the adapter therefor, machines. The adapter comprises, in this in` the tool removal -being effected through the-serv 10 stance, a ~truncatedy conica-l shaped body -' Ifû, Ihavice of a hydraulic ejector, which is under the ccn Ving for a portion of its length -the 'ordinary ltool trol of’a'singleï'attendant for the milling machine. ‘ , receivingsocket -I Igwhic'h'as usual opens through Another 7object of the invention is‘the provision thel argerendd 2 ofthe b‘o‘dy, for `the introduction 'of ¿an adapter >of this icharactfer, `wherein ~for the -of the tool fit, whichffo‘r example',` is V'adrilL ‘of -removal `of Ava rotary ~'-too`1, »such as those used `in 15 ‘standard construction. , ` u _ ing,»or `other fmilling work, can be conveniently I4 which communicates with the socket Ill. tThe releasedfrom its holder, with »dispatch and ease, 'dr'ili'iil lor'other tool: has 'a tapered shank yIï5>and , vat the location of su'chholder, and through hy atan-g Iiiatth‘e send thereof formed vas usualiin draulic pressure underaV hammer blowen-'a plung 20 cross section substantially rectangular vor lother er, which is "exposed for this purpose. >wise'with'lateral facets i1. Exampling the usual A Vfurther object of the inventionis the `provi Yconstruction “the vsocket IIr Vis tapered linwardly sion 1.0i .an :adapterzof this acharacterfwherein the conforming‘to the tapered shank I5 ofthe tool <constructionthereof .is novel .and unique inthe for tight-fit offtheïlatter/within the said socket. arrangement of -its parts and'îthe working thereof, The vtang Ifiiengages in kthe drift hole I4, 'as best the adapter being retained in lthe machine and seen in Figure l of the drawing, Aandthe 'facets does not require removal for the changing of tools I'l eliminate the vrotation ~of the `tool'within the as may'îbenecessary for the execution of differ socket I I, as the tang Vlocks the said tool therein. ent characters of work by the said machine. In thesmall end `»I8 'of the’body >IIl'is >a screw A still further object of the invention is the 30 threaded plug socket I9 for a threaded plug 20, provision of an adapter of this character, which detachable therefrom, the plug socket I9 being is simple in construction, thoroughly reliable and in communication with an oil chamber 2 I, which efficient in operation, strong, durable, possessed of confronts an ejector pin 22, having fluidtight f1t few parts, readily and easily operated,’requires ting with a clearance 23 therefor, and this pin little or no repairs, thus economical for continued 35 is adapted for direct striking contact with the service, devoid of a complicated structural set tang I6 when extended within the drift hole I4, up, and inexpensive to manufacture and install. as best seen in Figures 1 and 3 of the drawing. With these and other objects in view the inven l The plug 2S is formed with a flat faced wrench tion consists in the features of construction, com-' ` engaging head 24 at its outermost end, while bînation and arrangement of parts as will be 40 provided in this end and carried through the hereinafter more fully described, illustrated in , head till is an internally threaded socket 25, so the accompanying views in the drawing forming that the adapter A can be detachably fastened a part hereof, which shows the vpreferred embodi to a driving arbor, not shown, of a milling ma ment of the invention, and pointed out in the chine, which also is not shown in the drawing. claims hereunto appended. 45 However, the adapter may be otherwise fitted In the accompanying drawing: to the milling machine, for the holding of a tool Figure 1 isa view showing the 'adapter in ver required to be operated thereby. n ` tical section, as constructed in accordance with The plug 2U at its inner end is Áprovided with the invention, with a tool held by the adapter. a check or stop 26 in the path of the pin 22, to Figure 2 is a transverse sectional View taken limit the throw thereof in one direction, and approximately on the line 2-2- of Figure 1 look Athus avoid such pin leaving its clearance 23 when ing in the direction of the arrows. _ retrieving within the adapter A. Figure 3 is a view similar to Figure 1 showing Formed longitudinally in the body Ill eccentric the adapter operated with the tool ejected there to the tool socket II is an oil passageKZ‘I, which from. 55 at its inner end opens into an enlarged area 28 2,407,471 3 to the oi1 chamber 2|, while the outer end of this passage has associated therewith a countersunk packing gland 29, through which operates a slid able plunger 30, the latter being extended for a distance into the passage 21, and at the outer end of such plunger is formed a striking head 3I,for receiving a hammer blow to compress oil filling the said chamber 2I and passage 21, so that 4 tary tool therefor having a Morse taper tanged shank, comprising an elongated truncated coni cal body having a centrally located socket with a drift hole for a portion of its length and open ing through the larger end for accommodating the tool shank and the engagement of the tang in the drift hole, the said body further being formed with an oil chamber opening through its smaller end and aligned with the drift hole, a when the plunger is forced inwardly of the latter the oil under compression will actuate the pin 10 removable plug fitting the smaller end of the body for closing the oil chamber and effecting a 22 for ejecting the tool I3 from the adapter A. The larger end I2 of the body IIJ externally Y driving coupling between the said body and the machine, an ejecting pin within the body be thereof is provided with diametrically opposed tween the socket and the oil chamber for contact key slots 32 for use in applying the adapter A to the milling machine. However, this construction 15 ing the tank, and a hammer blow actuated plunger slidably ñtted longitudinally in the body may be altered, if found necessary or otherwise required. The pin 22 is formed with an enlarged head' , within the marginal area of its larger end and extending generally in the direction of the socket for action on the content of the oil chamber to 33, the clearance 23 being constructed to pro 20 displace the ejecting pin for removing the tang .vide therefor in association with the pin. of the tool shank from the drift hole. `In the operation of the adapter A after the 2. An adapter for a milling machine and a ro tool I3 has been ñtted therein, and it is desired tary tool therefor having a Morse taper tanged to change tools, the operator strikes the head shank, comprising an elongated truncated con 3| with a hammer blow, the said plunger 30 being ical body having a centrally located socket with outwardly extended from the passage 21 a deter a drift hole for a portion of its length and open mined degree, with the head 3l exposed, and this ing through the larger end for accommodating blow results in displacing the oil within the pas the tool shank and the engagement of the tang sage and the chamber 2|, thus moving the pin in the drift hole, the said body further being 22 to a position for ejecting the tool I3 from the socket II. Whereupon the said socket II is 30 formed with an oil chamber opening through the smaller end and aligned with the drift hole, a re cleared for another tool, and the placement of movable plug litting the smaller end of the body such tool restores the adapter to normalcy, with for closing the oil chamber and effecting a driv the plunger projected from the passage 21 in a ing coupling between the said body and the ma reset condition. It will be apparent that the chine, an ejecting pin within the body between adapter A is a hydraulic ejector v'for a tool held the socket and the oil chamber for contacting thereby. Y ' From the foregoing it is thought that the con the tank, a hammer blow actuated plunger slid ably ñtted longitudinally in the body within the struction and manner of operation oi the adapter marginal area of the larger end and extending A will be clearly understood, and therefore a more >extended explanation has been omitted for 40 generally in the direction of the socket for ac the sake of brevity. Furthermore, it is to be tion on the content of the oil chamber to displace understood that changes, variations and mod the ejecting pin for removing the tang of the iñcations may be made in the invention, as fall tool shank from the drift hole, and a check ex properly within the scope of the appended claims, tension on the plug to limit the throw of the lwithout departing from the spirit of the inven 45 ejecting pin toward the oil chamber. tion or sacrificing any of its advantages. What is claimed is: 1. An adapter for a milling machine and a ro ROBERT BURK.