US508789A - Machine-die - Google Patents

Description

(No Model.)

, A. VUILLIER.

MACHINE DIE.

No." 50 8 ,'7 89. Patented Nov. 14, 1893.

- UNITED STATES PATENT OF ICE.

" AIME VUILLIER, or MILLIS, MASSACHUSETTS.

MACHINE-DIE.

SPECIFICATION forming part of Letters Patent No. 508,789, dated N'ovember14, 1893.

Application filed January 28,1893. Serial No. 460,086. (No model.) i

To all whom it may concern:

Be it known that I, AIME VUILLIER, of Millis, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Machine-Dies, of which the followingisa full, clear, and exact description.

This invention relates to improvements in dies for setting rivets, and particularly for the riveting of cars uponpails and like articles of manufacture, and has for its object .to provide novel devices of the character indicated, which will be applicable to punching machines or drop presses of any approved style, and afiord meansto secure a pail ear in place on the pailbody, by one stroke of the machine, in a neat and rapid manner.

To this end, my invention consists in the f construction and combination of parts, as is hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a vertical sectional View of the upper die of the improved set of two dies that co-act in a proper machine, thesection being indicated by theline 1-1 in Fig. 3. V Fig. 2 is a vertical sectional view of the. complementary lower die of the set, taken on the line 2-2 in' Fig. 4:. .Fig. 3 is a side view of the upper die, broken away below opposite the arrow 3 in Fig; 1. Fig. 4 is a side view of the lower die and ear-holding attachment, taken in direction of the arrow 4: in Fig. 2. Fig. 5 isa reverse plan view of the upper die, partly broken away, and in section on the broken line 5-5 in Fig. 1; and Fig. 6 is a side view of a pail ear, that is of the style the dies are designed to aflix by rivets, upon a,

pail body or other sheet metal receptacle that is to be furnished with a bail handle. 7. The die block A, is by preference given a 1 cylindrical form, and from its upper face a flange l), on the lower terminal of the keeper sleeve,'serving as a seat for the stripper block C, that is an important feature of the upper die.

The block 0, is circular at its upper end whereon a radial flange c, ofacorrect thickness is produced, the diameter of which is proportioned to permit said circular flange to loosely fit within the keeper sleeve B, and rest upon the flange b, of said sleeve.

Below the range 0, the body of the stripper block 0, is by preference reduced on the front and rear sides, and converged downwardly on the edges so as to lighten this portion of the block by removal of material, thus affording a laterally elongated lower portion which projects downwardly through the circular opening in the sleeve B that is bounded by the inner edge of the flange 6; and it will be seen, that the lower end of the stripper block has its face shaped to conform with the side surface of the ear. D, that is exterior whenaffixed to a pail or like receptacle. I At an equal and'correct distance from the longitudinal center line of the die block A, and in its lower face two round socket holes are formed of an equal depth in parallel planes, and of a suitable and like diameter;- these perforations being designed to receive thepair of similar punchese, that are cylindrical in the body, fit neatly in the socket holes of the die block A, and are therein secured by the set screws d, that are inserted inthreaded holes in the side of the reduced cylindric part of the (lie block, and have a proper bearing on flattened seats made to receive their ends, on the sides of the punches near their upper terminals, thelatter being in contact with the bottom walls of the socket holes of the die blocks.

The punches e, are of such a length as-will permit them to project below the die block A, sufficiently for effective service, and near their lower ends have similar cone points 6 formed thereon, so reducing the area of the faces on the lower terminals of the punches,

as to adapt them to serve as riveting hammers, said faces being made slightly concave to more perfectly effect the neat riveting operation, which will be further mentioned.

The stripper block 0, is perforated in parallel from the upper side, at correct points to permit the block named to receive the portions of the punches e, that project below the die block A, the diameter of said perforations being proportioned to allow the punches to loosely fit therein, and the stripper block thus be adapted to slide on said punches. Preferably the perforations in the stripper block are madeconiform near their lower terminals to adapt them to conform to the shape of the punches at their conical points.

The annular space afforded by the reductionof the body of the die block A, is occupied by a spring E, that is represented as made of vulcanized gum, but may be a spiral metallic spring if preferred, said spring being intended to normally hold the stripper block 0, upon the flange b, of the keeper sleeve B, there'being a proper space allowed to intervene between the lower face of the die block A, and top face of the stripper block 0, to permit the latter named piece to slide upwardly and expose the normally incased points of the, punches e, when said stripper block is made to impinge on somesupported object below it.

The keeper sleeve B, is furnished with spaced socket holes g, that are designed to receive theend of a pin lever or the teat of an ordinary spanner wrench, which by manipu lation in a proper direction will screw the sleeve upon or-off the die block A, as may be required.

. or bed plate of apunching machine whereon the upper die that has been described is attached and adapted to reciprocate in a vertical plane. At points that will adapt them to axially align with the punches 6, two cylindrical anvil blocks h, are seated in suitably formed recesses in the lower die-block G,

these pieces of like form, being neatly fitted in the cylindrical cavities they occupy.

Theupper ends of the anvil blocks h, are con-ieall-y formed, and have such a relative diameter given their upper terminals as will produce circular faces thereon of proper area to receive and sustain the flanged ends of metal rivets '1; as indicated in Figs. 2 and 4.

A novel and essential part of the improvement, consists of a supporting device for the pail ears D, such device comprising two main portions m, n. The part m, is formed of steel or resilient brass, and is in the shape of a comparatively thin strip of metal having a proper width, and made parallel on the side edges.

' At one end, the spring plate m, is perforated for the reception of a screw m, that secures the spring at this end upon the die block G. From the secured end, the spring plate m, is bent upwardly and toward the anvil blocks h, its upward inclination terminating at a suitable distance from the screw m, where it is bent to project its remaining part in a plane parallel with the level surface of the die-block G and at a correct height therefrom, its front terminal being located a short distance behind the anvil blocks, as shown in Fig. 4. At m where the spring plate m, is bent to render its forward part level, a thickening of the plate body is produced, for the formation of a screw hole therein, and on this portion of the spring plate another spring plate 11., of an equal width is imposed and secured thereto by a screw m that is inserted through a perforation of proper size formed in said plate n, near the rear end. The portion of the plate n, that is engaged by the screw m is of greater thickness than the part forwardly thereof, which part is resilient.

The front portion of the spring platen, is of an equal thickness to that of the resilient part mentioned, and at a correct distance from the forward terminal of the plate n, a flattened projection 'n', is formed on its'lower side, thus affording a shoulder at the forward transverse edge of this projection, which latter is at such a distance from the free front ends of the two spring plates m, n, as will provide an abutment between said parts, that will limit the introduction of a pail ear D,between the plates 1%, n.

Upon the lower side of the spring plate m, nearthe thickened part n of the upper spring plate n, aguide box 47?, is secured, this box being formed'of a metal strip of a properand equal thickness, said strips being to afford two parallel flangesat right angles to the flat part between them, said flanges embracing the edges of the spring plates m, 'n,-w hen the guide box is secured transversely on the lower surface of the plate m, as beforementioned; so that the upper spring plate n, will be adapted to yield slightly in a vertical plane, and be retainedinali-gnment with,and above the plate m;

To facilitate the insertion of the pail ears D, between the spring plates m, n, the adjacent corners on the free front 'ends of'said plates are rounded as shown in Fig. 4, and when the ears D, are forced between the clasping spring plates, one'at a time, the ear thus introduced will be held removably projected above the anvil blocks h, in such a relative position as will align the spaced perforations 0, in the projecting part of the ear, with the rivets i, that are seated on the anvil blocks a and also with the lower cone points of the punches 6.

By preference, the blocks h, are permanently magnetized so as to adapt themto hold the rivets 7 on their upper faces, secure from accidental displacement.

Rearward of the anvil blocks h, a gage plate I, istransversely and removably secured, said plate having depending opposite flanges p, on its ends, which are parallel on their inner faces, which latter are separated a proper degree to cause the flanges to emmachine, so that they will co-act as indicated, a pail body J of cylindrical or other suitable form, is introduced above the magnetically-held. rivets 2', until its top'edge engages the front face of thegage plate I,

the sheet metal body. of the pail that is to have ears attached, being located below a spring clasped ear D," as shown in Fig. 2. The upper die is now caused to descend, whereupon its stripper block O,'will press the ear D, towardthe outer surface of the pail body that is uppermost; down-ward motion of the 'upper die being continued until its pressure willcause the rivets 2', to penetrate the pail bodyand pass through the perforations 0, in the rear 1 and when this has been effected, and the pail bodyis prevented from a further depression by the anvil blocks h,'the

V stripper block 0, will yield sufficiently to permit the cupped ends of the punches e, to impinge upon the upper ends of the rivets and upset them so as to produce a button set rivet head thereon, which will secure the earD, on

the pail body J, in a substantial and neat manner, by one stroke of the punching machine whereon the dies are secured and made to 'conjunctively operate. 7

It will be seen, that the work of afflxing ears upon sheet metal receptacles, can with the improved dies, be rapidly and reliably effected, and by comparatively unskilled labor.

Having thusfully described my invention, I

claim as new and desire to secure by Letters Patent- 1. The upper composite die, comprising a die block, spaced, depending and parallel punches on the die block, a stripper block.

perforated-to receive the punches, and held on the die block below it, a keeper sleeve screwed on the die block by its upper :end, flanged inwardly at its lower end and on which flange a radial flange on the upper end of the stripper block seats, and a spring intervening the die block and stripper block, I

substantially as described. 1

2. The composite lower die, comprising an elongated die block, upright anvil blocks at the front of the block, a double plate-spring clasping device on the die block, adapted to,

hold pail ears above the anvil blocks, and a gage plate adjustable on the die'block, substantially as described.

3; The composite upper die, comprising a cylindrical die block having an axial shank on its upper face and threaded peripherally near the top, having its body reduced diametrically below the thread, a cylindrical keeper sleeve internally threaded and engaging therewith the thread on the die block, an inwardly extending radial flange at the, base of the keeper sleeve, two parallel de-, pending spaced punches secured in sockets in the under face of the die block and conepointed at their lower ends, a stripper block perforated, to slip on the punches and ra-- dially flanged at its upper end to seat on the flange of the keeper sleeve, and a spring encircling the reduced part of the die block and intervening its shoulder and the top of the stripper block, substantially as described.

4. The composite lower die, composed of an anvil blocks seated in spaced vertical sockets at the front of the die-block, an adjustable gage plate notched centrally on its upper edge, and a spring clasping device, composed of a bent lower spring plate secured at its rear end to the top of the die "block, an upper straight spring plate shorter than and secured upon the lower plate by its rear. end near the center of said lower plate, and a guidepiece secured on the lower springplate andrhaving opposite vertical flanges loosely embracing the edges of the upper spring plate, substan-.

tially as described. Y Y

AIME VUILLIER.

Witnesses:

JOHN S. SNELL, PETER TOBLER.

elongated rectangular die-block, cylindrical

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