US1362573A - Die - Google Patents

Description

E. J. O'LEAHY.

DIE.

APPLICATION FILED OCT- 8,1919.

.1,362,5'73. Patented' Dec. 14, 1920.

INVENTOR':

Edward-[alga J I BY ATTORNEY EDWARD J'. OLEARY, 0F SEATTLE, WASHINGTON.

Application filed October 8,

To all whom it may concern:

Be it known that I, EDWARD J. OLEARY,

a citizen of the United States, residing at Seattle, in the county of King and State of \Vashington, have'invented certain new and useful Improvements in Dies, of which the following is a specification.

This invention relates to dies for use in forging machines; and has for its object the provision of a set of dies which in one opera tion will produce a relatively large lateral-#1 t 1 th f th T d f b d en ire eng 0 e cie an 0 a com me projection or lug upon an iron or steel bar, by an upsetting as hitherto. 3

With this end in view the invention consists in the novel construction and combination of the dies as Will be hereinafter described and claimed.

In the accompanying drawings, the invention is illustrated as applicable to the production of lugs from a bar which is designed to be used in the manufacture of mast band.

In said drawings, Figure 1 is a view g shown partly in side elevation and partly in longitudinal section of an embodiment of my invention, the male die being shown retracted and a metal bar in position to be operated upon. Fig. 2 is a similar view with the male die advanced to produce the lug shown in the cavity of the female die. Fig. 3 is a horizontal sectional View with the male die in its advanced position and one of the members ofthe female die withdrawn from the work. Fig. 4 is a perspective view showing a sample of the work produced by the dies illustrated in the preceding views.

In the drawings, the reference numeral 5 designates the frame of a forging machine which, as shown, is provided-near. one end with recesses 6 to accommodate the members of a female die to be hereinafter described. I

Extending from such end of the machine are screw threaded rods 7 supporting an abutment bar or stop 8 which is held at selected distances from the machine frame as b means of nuts 9.

Mbunted for reciprocatory movements in the machine frame is a power operated Pleas Th machine be ef r e operation instead of byi jumping or welding the lug to the barhis to be operated upon.

such as 14 to afford a tunnel like opening Specification of Letters Patent. Patented De 14 1920 v 1919. Seria1 No.3 29, 213.

to may be of any well known or suitable construction.

. Accordlng to the present invention, I providea female die composed of two block members 11 and 11 having opposing faces 12, one or both of said members being .mounted for reciprocatory movements from and toward each other in the respectiveframe recesses 6. a

Each of said die members has a longitudinally arranged groove 13 extending the width equal to the width of the bar B which Said die members are provided with complementary cavities extending forwardly from the rear ends 15 of the respective members to a wall face 1 .16. The shape of said opening transversely corresponds to. the transverse shape of the lugs L which are to be produced and which, in the illustrated example, as shown in Fig. 4:, are provided with sides L slightly converging to a substantially semi-circular outer extremity L The upper surface 13 of the groove 13 in proximity to the cavity face 16 is desirably inclined at an angle less than a right angle with respect to said face.

Cooperating with the aforesaid die is a male die having a body portion 17 provided with a shank 18. adapted to engage 111:3. socket provided in the plunger 10.

Said body is provided with a longitudinal slot 19- extending the entire width of the body and forwardly. from within a short distance of the shank 18. The upper bifurcation 20, hereinafter designed as the forming element, is of less length than the lower bifurcation 21 which will be hereinafter designated as the carrier. serves to support the work and bears upon the floor 13 of the grooves of the die members 11 and 11 when the latter are brought into juxtaposition with each other. The width of the carrier element of the male die is equal to that of the cavity within the other die and is of a depth to afford a space above the carrier suflicient to accommodate The carrier 21 L from the cavity end 16 when the male die has been moved with the plunger to-the end of its forward stroke.

The shape of the forming element part 20 which extends into said die cavity is ofa transverse shape corresponding to that of a lug L and also said cavity. The lower surface 20 of the forming element in proximity to its forward face 20 is arranged to be in angular relations therewith less than a right angle. placed within the slot 19 of the male die for regulating the position ofabar Blongitudinally of the carrier. Y Y

The operation-of-the above described invention is 'as'follewsz bar B,- which is heated in" the locality of a lug which is to be produced, is placed uponthe'carrier element 21 of the male die; extending through the-groove of the die member 11 and between the stop 8 and a filler 'pjl'ateZQ of'suit- *ablelength to close the gap in the slot 1 9 when's'aid die is in" its r'etractedposition, as

shown in Fig: 1. I

The member 11 of the female die is then brought against the complementary member 11 and is temporarily secured" by suitable means, not 1 shown, from 1 separating therefroin.

With the parts thus arranged-g the -ma1edieis then urged forward, but'inasinuch as the stop 8 p'reventsthe bar-B accompanying this die, the en'ds'of the bar will'in'an obvious manner he forced toward eachother resulting'in the hot portion of the bar' being crowded into the ca'yity' 14: of the female die by what is conventionally known as mapsetting action. The continued forward travel of the male member will thereupon engage the portion of the bar which has been protruded into said cavity and is pressed between the opposing faces 20 and'l6,-respecti'v'ely, ofthe former element-2 0 and cavity to produce the lu'g U as represented in During such "iag reaucihg operation' the sloping snafu-e313 and'20 'of-the' two dies coast to directinto the die cavit'y'l'the'material" afforded; for; making lug by the shortening ofthe bar. 7 When a lug is'formed eirplaiiie'd faboiie the plhnger 10 is drawn "back to retract" the male die and the die-member 11 moved-"away 22 represents a plate remova'bly ting a hot portion of a metal bar in a die by contracting the length-of the bar aflords better appearing and stronger results than can be obtained by building-up, welding or cutting out methods.

WVhat I claim, is

1. A forging machine having a reciprocating plunger and a stop, a male die secured tosaid plunger for movement relative to said step, said die being provided with means which cooperate with said stop to retain therebetween stock which is to be operated upon, a female die through which both. the aforesaid die and the stock extend, said male and female dies'being' provided with cooperating parts for effecting the upsetting of a partof the stock within the female die.

2". In a forging machine, the combination with the machine frame, a reciprocatory plunger,' and a rigid stop, of? a"female die having a mold cavity there'ir'r and secured to the machine frame between said plunger i'd.

said stop, a male die provided with a forming element, said male die having a' second element guided in said female die and serving to support work whichis to be operated upon, and means provided in the male die andcoope'rating with the aforesaid stop for confining said work therebetween during 'the operative movement of the male 'die' with said plunger.

3. A lug-formingdie'comprising a'two part separable female die provided witha mold cavity and a'male'die arranged for reciprocatory movements longitudinally of the female die, said male die havinga work carrying portion disposed below the bottom of said cavity anda formingelement' arranged-to be entered into. and withdrawn from the cavity'in thesuccessive strokes "of themale die; p

4. A lug-forming die comprising a" female die having a mold cavity therein, ama-Ie die provided witha lug forming element'opei} able withins'aid cavity, and a Work supporting 5 element provided on the maledie {and serving as a guidua for the latter-iii the female die? 1 5; Alug'forming die 'conip'risinga memher consisting of two separable sections and having a mold-cavity and a longitudin'alfslot in superposed relations-,' anda second niember provided with we" superposed spaced elements, the lower of'said elementsbeing guided in said slot and of less depth than the latter to afford a space above such element in the slot and coextensive with the spznz'e'between said elements, the upper of said elements extending into said cavity and adapted to cooperate with the walls thereof to produce a lug from a heated portion of stock placed upon the lower of said elements in faces complementary longitudinal grooves and cavities communicating with the respective grooves, said cavities constituting a mold corresponding'in transverse shape to that of the lug which is to be produced therein, and a third member having a longitudinal slot to afford two bifurcations of unequal length, the longer of said bifurcations serving as a Work carrier and operable in said grooves, the shorter of said bifurcations having a transverse section corresponding to that of the lug and extending into said mold. j

Signed at Seattle,'Washington, this 2nd day of October 1919.

EDWARD J. OLEARY.

Witnesses:

PIERRE BARNES, ELIZABETH JOHNSON.

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