US766877A - Flange-forming machine. - Google Patents

Description

BEST AVAILABLE COP No. 766,877. PATENTED AUG. 9, 1904..

A. DEWES. FLANGE FORMING MACHINE.

APPLICATION FILED OUT. 12, 1903. H0 MODEL. 4 BHEBTSBHBET 1.

" "will I Witnesses BEST-AVAILABLE COP No. 766,877. I PATENTE'I) AUG. 9, 1904.

. ALDEWES. y FLANGE FORMING MACHINE.-

1 1 *1 I WWW/l Will H I k y I 1mm Y 1 1 EST AVAILABLE COP No. 766,877; PATENTED AUG. 9, 1904.

h A. DEWES. FLANGE FORMING MACHINE.

- APPLICATION FILED our. 12, 1903.

N0 MODEL.

4 SHEETS-SHEET 3 witmeoaeo awucwltop ga).

BEST AVAILABLE COP No. 766,877. I v PATENTED AUG. 9, 1904.

- A. DBWBS.

FLANGE FORMING MACHINE.

APPLICATION FILED 0OT.12, 1903. N0 MODEL.

4 SHEETS-$811332! 4.

'- rollers, arranged to press on the edge of the.

UNITED STATES BEST AVAlLABLE COP Patented August 9, 1904..

ABEDNEGO DFNVES, OF NEW YORK, N. Y.

FLANGE-FORMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 766,877, dated August 9, 1904.

Application filed October 12, 1903. Serial No. 176,580. (No model.)

To all whom it may concern:

.Be it known that I, ABEDNEGO Dawns, a citizen of the United States, and a resident of New York, county and State of New York,

have invented Improvements in Flange-Formpreparing the various steps in the production of a flange and for making different shaped flanges and adapted to be rigidly secured to the shafts of the rolling mill; guides for controlling the material in the form of bars while being acted upon by rollers to shape the bars into flat circular flanges; a rotatable chuck adjustable to and from the forming-rollers and on which the bars primarily formed in flat rings may be held while being acted upon by the forming-rollers; means, as adjustable 3 material to assist in or complete the forma- .tion of the flange, and means for trimming the outer edges of the flange.

A suitable structure embodying the above features and other minor features of construction is shown in the accompanying drawings, in which Figure 1 is a general plan view of such a structure, illustrating the arrangement of some of the-operating parts. Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a part plan view showing the devices for the preliminary formation of a flange. Fig. 4: is a part plan view showing flange forming and trimming devices. Fig.5 is a similar view with the trim ming device omitted, showing a flange about completed under the action of the formingrollers. Fig. 6 is a part plan view showing the edge-forming device in action, and Figs. 7, 8, 9, 10, and 11 illustrate the different steps in the formation of a flange from a flat bar.

Before describing the machine attention is I called to the various steps in the process of forming flanges under this invention. A flat bar of suitable length, as shown at Fig. 7, is

submitted to the action of plain rollers, slightly conical, whereby the bar is rolled into .circular form, asshown at Fig. 8, the ends being then welded together to form a fiat flange or ring. The outer edges ofthe flanges so formed,-Where the most stretching of the 'metal occurs, will be in many cases somewhat rough and irregular, as exaggeratively indicated in Fig. 8 and some of the other views of the drawings. It is desirable to trim the outer edges of flanges as shown at Fig. 9, which may be done when the flat flanges are primarily being acted upon by the formingrollers, which, by a' rolling swaging action, imparts the required cross-sectional shape to the flanges, or during the complete formation of, the flanges. Fig. 10 illustrates a completed flange, the outer edge of which is turned round. This rounding of the edge maybe produced by edge-forming rollers acting in conjunction with the main forming-rollers, and the trimming device may also be set to trim the edge at the same time. The outer part of the flange may also by the action of the edge-forming rollers 'be turned over sufficiently far to form a bead, as shown at Fig. 11.

- The machine illustrated in the drawings, adapted to form flanges as set forth, consists of shafts wand at, having bearings in thehousings b and b, which extend upwardly from the bed-plate b the'bearing of the upper shaft a in the front housing I) being provided with adjusting means, as a screw and hand-wheel The shafts are causedto rotate together by the gears 0, secured to them, andthe bottom shaft a, is driven by suitable gearings 0 and drive-pulleys 0 On the ends of the shafts a and a, extending beyond the front housing 6, are secured the forming-rollers. (Shown in Figs. 1, 2, 4:, 5, and 6 as counter-rollers d (1,

having curvilinear working faces, and in Fig. 3 as straight-faced rollers, the upper'on'e, d of which is made slightly conical.) The formingrollers by being forced toward one another act by a rolling-swaging action flatwise on the flange to press it into the desired shape without causing any change in the general flat plane of the flange.

In front of the forming-rollers is located a horizontal rotatable table or chuck a, centrally supported by a stud a on a slide f, which fits in a groove or slot in the plate g, held bysuitable supports and connections a short distance above the bed-plate 5 This slide f is controlled by a screw f, having a bearing in the end of the plate g and by means of which the chuck 0 may be set in properrelation to the formingrollers, so that different sizes of flanges carried by the chuck will be correctly presented between the forming-rollers to be acted upon by them. To adapt the chuck to hold different sizes of flanges, it is shown provided with radially-adjustable slides IL, having gripping-jaws h at their'ends, by which the flanges or rings are clamped by their inner marginal edges and are rigidly held to the chuck and with the chuck freely rotate under the action of the forming-rollers. The plane in which these gripping-jaws are located and in which they hold the flat flange is coincident with the opposed acting faces of the formingrollers, the axis of the rotatable chuck and the axes of the forming-rollers being arranged permanently substantially at right angles.

The device for forming the edges of flanges is shown consisting of rollers 71 i, suitably formed, located at the sides of the forming roller, with their axes parallel to the axis of the rotatable chuck-table, and carried at the ends of the short arms of bell-crank levers i d, fulcrumed on studs 6 '5 projecting upwardly from the plate g, and a right and left hand screw j, fitted to work in rocking nuts)" ,7", carried at the ends of the long arms of the bellcrank levers. By the manipulation of this screw the rollers z" '21, as shown in Fig. 6, are equally and simultaneously forced against the edge of the flange :0, held in the chuck while it is being rotated by the forming-rollers (1 cl, and so by direct pressure upset the Y edge of the flange and force it into the desired shape. These edge-rollers and their operating devices are, as shown, readily removable from the machine when they are not required in the operation for which the machine is arranged to perform.

As before stated, the preliminary operation is forming the material into flat rings. This is accomplished by presenting a flat bar co to plain rollers d, Fig. 3, said bar being guided to the rollers by passing it through the guide k, which has a friction-roller it, against which the edge of the bar bears, and a slotted baseplate held by bolts ll to the plate g, said guide being adjusted and partly held by a screw m, which passes through the downwardly-projecting end of the base-plate and butts against the edge of the plate 9. Another guide at, located at the off side of the rollers, controls the material as it passes from the rollers and is gradually rolled into ring form. After the flat flange or ring w is completed it is clamped in the chuck a, partly extending beyond its into action.

7 BEST AVAILABLE COP periphery, and presented to the forming-rollers d d, Fig. 4:, whose form corresponds to that of the required cross-section of the finished flange, and while the ring is rotated by the rollers the trimming device may be brought This device is shown consisting of an ordinary tool slide-head 0, having a flange by which it may be held on the plate g by bolts 0 0 and having the usual clamping means for holding a turning-tool 72. This tool 19 is shaped to give the desired form to the edge of the ring and is gradually fed against the ring by the feed-screw 0 of the slide-head, thus causing the turning-tool to gradually cut away the irregularities from and true-up the edges of the flange as it is continuously rotated, and this may advantageously be done in some cases at the same;

time the edge is forced into shape by the edgeforming rollers 71 i, the devices being arranged as shown at Fig. 2.

In forming some side flanges from flat rings the operation may be completed by the action of the forming-rollers only, the machine being then arranged as shown at Fig. 5, a representing the flange being formed.

, It will be observed from the foregoing that at the time the flat flange is being formed into shape by the forming-rollers the edge of the flange may be turned true and clean by the turning-off tool, thus causing a saving of time in the completion of the flange; also, where it is desired to upset or form a bead on the edge of the flange by the edge-acting rollers, this may be done at the same time as the turningtool is turning the edge, which will greatly facilitate the upsetting or beading process, the flange during such operation being dependcut for its motion against the edge-forming rollers and the turning-off tool on the action thereon of theforming-rollers.

It will be seen that the main forming-rollers 0) d and the trimming-tool p by their combined action on the flange greatly facilitate the desired forming operation, in that the process of trimming or truing up the edge of the flange occurs at the same time the shape is imparted to it by'the forming-rollers, whereby the forming process is much facilitated by reason of the superfluous edge metal being removed. The rollers 41 d, as before described, constitute the means for imparting motion to the flange for the action thereon of the trimming-tool, and when the edge-forming rollers v1 7 are brought into action at the same time the edge of the flange is being turned off by the trimming'tool said upsetting or beading process is thereby facilitated, the flange being rotated by the forming-rollers, which may during this operation be caused to impart the desired shape to the flange. Thus it will be seen that the main forming-rollers d d, the edge-rollers i v and the trimmingtool 10 cooperate in producing the newand useful result.

I claim as my invention 1. In a flange-forming machine, in combi- "nation, a pair of forming rollers carried by shafts suitably driven and controlled by means for varying the distance between the rollers; a rotatable chuck-table adapted to hold a circular flange or ring by its inner edge permanently in plane with and between the opposed faces of the forming-rollers and control the movement of the same while under the action of the rollers; and a feed-screw fitted between the bed of the machine and the table for the precise setting the table in relation to the rollers.

2. In a flange-forming machine, in combination, a pair of forming-rollers carried by shafts suitably driven and controlled by means for varying the distance between the rollers; a rotatable chuck-table adapted to hold a circular flange or ring by its inner edge permanently in plane with and between the opposed faces of the forming-rollers and control the movement of the same while under the action of the rollers; and edge-upsetting rollers for shaping the edge of the flange while under the action of the forming-rollers;

- 3. In a flange-forming machine. in combination, a pair of forming-rollers carried by shafts suitably driven and controlled by means for varying the distance between the rollers;

shafts suitably driven and controlled by means for varying the distance between the rollers;

a rotatable chuck-table adapted'to hold a circular flange or ring by'its inner edge permanently in plane with and between the opposed 'faces of the forming-rollers and control the movement of the same while under the action of the rollers; means for setting the-table in relation to the rollers; and a'roller arranged on each side of the forming-rollers with their axes'at right angles to the axis of the formingrollers andadjustably controlled to act on and form the edge of the flangeor ring.

In testimony whereof I have hereunto sub- 55 l scribed m'yname this 5th day of October, 1903.

'ABEDNEGQ DEWES. v

Witnesses:

ARTHUR GIBL'ATZ, 'JAMEs A."HUDSON.

BESTAVAILABLE COP I 3

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