US1576281A - Flanging machine - Google Patents

Description

March 9 2%? a Sheets-Sheet 1 INVE'NTQR March 9 1926. 1,576,281

' J. HUBER FLANGING MACHINE Filed July 24, 1924 2 Shets-Sheer 2 Patented Mar. 9, 1926.

warren is rains JOHN HUBER, or L05 ANGEL-Es, CALIFORNIA.

LFLALTG'INGJM'ACQHINE- "Application filed July 24, 1924. Serial 1No. 727;874.

To alhvhomitmaycoMam Be it known that :1, JOHN I+IUBnR,-a citizen of theUnited States, residing at Los Angeles, in the county of Los 'Angeles and State of California, have invented certain newand useful Improvements in Flanging Machines, of which the followingis a specification. H My invention relatesto the art o'f bending sheet or plate metal, and consists-of means for exerting holding pressure against the face of 'a'plate during "the hanging operation, as hereina'fter. described.

It has in view to utilizethe mainframe andactuating mechanism oi": a. power operated shear, punch, press, or other "similar -niachine, by providing suitable die mecha- 'nisrn incorporated with the'actuating plu'ng er or head of the machine, together *with a suitable support for the plate or blank.

Also, in combining with the main machine, and as a part o'f such-supplemental equipment, a reciprocable pressing header lever "so mounted on the lower frame and connected with 'the plunger as to be operated thereby, adapted to not upon the edge portion of the plate by a series of pressing orbending shoes or dies, while at the same time, exertinga correctlng counter-acting or 'flaltt'ening pressure during the bending or fianging -op'erat1on.

Theinvention ipreferablyutilizes a series ofsuccessive'ly acting shoes or *dies for the purpose o'fdorminga 'fianjge or bend by a corresponding series of successive operations, for rapidly forming the flange through such "series of bending movements, like thoseshmvn and described in my prior application filed "September 6,. 1923, {Serial No. 61,243. The present application refers particularly to the construction of the press- *ing shoes secured to the under middle and side' por'tions of the pressing head, for C011 *trol 'of the "plate dur ing fl'anging.

In the drawings, illustrating the invention:

Figure 1 is a partial view in sectional elevation, showing the actuating mechanism mount-ed onand connected with the sane are frame-of a shear, "punch, 'or press, at the "completion of {the flanging stroke;

Fig. 2 is a partial plan viewof the pressin'ghead;

Fig. 3 is yertieal section therethrough lee int-an or Fig, 2;

. lg. d-is "an view eat-ea at the middle pressing shoe of the pressing head;

Figsb, 6 and 7 are views'in'side andend elevation and planrespeetively of the side pressing shoes of the pressi'ng head.

In the drawings,'2 is the main frame or housing of a standard FPLTIIGll, shear, or press, having the usualanvil block or base 3, and head 41-. Within the head is usually mounted a cam or eccentric-actuated =plun g er'or base 5, to which may be attached the punch, shear, or die, commonly used 'in such machines;

' In the presentcase, "Isubstitutekforssuch element a-sp'ecial head 38, adapted to interfit and firmly connectwi'th the plnnger'5 for intermittent downward and upward movement, as "controlled by the usual'clutch mechanism, as is well understood. For. liftingthe pressing head, a bra'oket extension '39 is an anvil block 6 having its inner fifaoedownwardly and rearwardly indli nedi-ffrom the front f at a suitable *angle, and with an inner facesufliciently deep to: allow for the making of a flange *o iE' any desired depth.

Theblank A,*\ vhieh is usually in the dorm of acircular {plate or head, and whi'ch'is to be peripherally flanged at f substantially "right angles, is piete'r'ablydaid "across the upper portion o tthe anvil 6, as in Fig- 1, so that in the fi'nal pres'slng operation, shown in said figure, the'terminal fi'ange will be bent down at substantially riigh't a'ngles to it when {finished Anvil '6, for 'suchpurpose, is provided with "a removable 'da'ce bloe k =or bearing shoe '7, held against the lfae'e of a'nvil6 by was 8, as will be readily unden stood. k 1

Shoe 7 is "preferably rounded at its "hearing corner 9 so "as to provide an easy rounded joint for the flange, and 'suchshoe' is "either laterally curved or straight' a's to its back face. fi curv'ed, theradius may be approximately that -of the plate to be flanged, and the "shoe is preferably made removable so as to allow or the substitution of difierent shoes.

For the purpose of supporting -"1ate A,

properly braced, and.--.iavia iaaer sap pressing dies or shoes.

porting bracket 11 which is pivotally mounted by a bolt 12 to the inner upper corner portion at each side of the anvil block 6. By such construction, the frame 10 may be raised or lowered, to adjust it to the desired position, and its outer end is supported by any suitable abutment 13 upon which the end of frame ,10 rests.

A center supporting block 14 is secured by bolts 15 at any desired position longitudinally of frame 10, upon which it may be moved in or out to locate the block 14 at the desired distance outwardly from the anvil block 6. Block 14 is provided with a central stud 16 and nut 17, upon which the plate A may be pivotally secured for intermittent rotation during the successive Hanging operations.

The upper face ofthe base 3 is so shaped or adapted as to provide a Hat bearing for a base plate 18 of a hinged bearing block 19, adapted to receivethe hinge pin 20 of pressing head 21. Said head, as shown, extends upwardly and outwardly over the anvil 6, having a middle pressing portion with an under Hat face 22, either for initial pressing or for attachment against it of supplemental Beyond its middle portion, the pressing head 21 is widened, as indicated at 23, forming an elongated pressing base for the lower separately attached pressing shoes 24 and 38, 38, at the middle and each side or edge portion of the widened part 23 of pressing head 21, as shown. Block 24, which is generally triangular in cross section, is provided with a continuously Hat inner face for engagement against the sloping faee25 of head 21 and has an under fiat pressing face 26 for engagement against the upper face of plate A, when head 21 is lowered.

Shoe 24 is secured to the front sloping face portion of head 23-21 by bolts 27 ex tending through elongated slots 28 in flangesv 29 at each end of shoe 24. By such means, the shoe may be accurately adjusted upwardly or downwardly on the sloping base and there fixedly held by the bolts.

The side pressing shoes 38 are also adjustably mounted on the sloping face 25 by contacting faces 30, and each such shoe has a lower pressing face 31 adapted to be adjusted to the same general plane of face 26 of the middle shoe. For such purpose, the side wall or flange 32 of shoe 38 is longitudinally slotted, as at 33, for the purpose of fixedly holding it to the end faces of head 21 by se curing bolt 34. The end of each shoe 38 is provided with a cross flange portion 35,

through which extends a bolt hole 36 for adjusting bolt 37 by which each shoe may be accurately set downwardly or upwardly, and then secured by holding bolt 34.

By such means, the outer shoes 38 may be adjusted with relation to the middle shoe 24,

the plate, dependent upon its tendency at;

different radial positions to react more or less under the Hanging action.

As shown in my prior application referred to, the Hanging shoe or die f is preferably one of a series of shoes of various depths, andthe present invention is capable of application to a machine utilizing such a series of Hanging elements or of other construction, as may be desired.

In operation, the reciprocation of the plunger under the action of its supporting head effects downward bending and final Hanging of the inner edge portion of plate A, sectionally throughout its perimeter, as sectionally adjusted and operated upon. At each operation, the middle and end shoes 24 and 38 arrive at contacting position with relation to the plate A toward the end of the Hanging movement and press steadily I downward during the remainder of the stroke, effecting continuous flattening operations clear around the plate, in accompaniment with each Hanging movement and the series thereof.

What I claim is:

1. In Hanging mechanism, the combination with a supporting base and an upper reciprocable power driven head, of an anvil block, and a pressing head interposed between the anvil block and reciprocable head having a bending face and a plurality of separately adjustable shoes mounted on the pressing head. i

2. In Hanging mechanism, the combination with a supporting base and an upper reciprocable power driven head, of an anvil block, and a pressing head interposed between the anvil block and reciprocable head having a bending face and provided with a middle adjustable shoe and outermost adjustable shoes mounted on the pressing head.

3. In Hanging mechanism, the combina tion with a supporting base and an upper reciprocable power driven head, of an anvil block, and a pressing head interposed between the anvil block and reciprocable head hav ing a bending face, and an inwardly and downwardly slopin front face, and a middle pressing shoe ad'ustably secured on said face. a

4. In Hanging mechanism, the co1nbination with a supporting base and an upper reciprocable power driven head, of an anvil block, and a pressing head interposed between the anvil block and reciprocable head having a bending face and an inwardly and downwardly sloping front face, and a pressing shoe adjustably secured on said face at each side of the pressing head.

5. In Hanging mechanism, the combina tion. with a supporting base and an upper reciprocable power driven head, of an anvil block, and a pressing head interposed between the anvil block and reciprocable head having a bending face and an inwardly and downwardly sloping front face, a middle pressing shoe adjustably secured on said face, and additional independent pressing shoes adjustably secured on said face at each side of the middle pressing shoe.

6. The combination with a pressing head of the class described having an inwardly sloping front face, of a middle pressing shoe having slotted flanges and holding bolts extending therethrough for securing the shoe against said face.

"7. The combination with a pressing head of the class described having an inwardly sloping front face, a middle pressing shoe thereon, and flat end faces, of side pressing shoes engaging the sloping face and one end for.

8. A middle pressing shoe for attachment to the sloping front' face of a pressing head as described consisting of an integral block of triangular cross section having a lower contacting face and a smooth attaching face and terminal flanges parallel therewith having bolt engaging slots.

9. A corner pressing shoe for attachment to the sloping corner of a pressing head as described consisting of an integral block having a lower pressing face, a sloping contacting face, a side securing flange having a bolt slot therethrough, and an endmost flange at right angles thereto having a bolt hole.

In testimony whereof I hereunto affix my signature.

JOHN HUBER.

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