US1603921A

US1603921A - Machine for swaging or bending sheet metal

Info

Publication number: US1603921A
Application number: US678762A
Authority: US
Inventors: John P Peth
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-12-05
Filing date: 1923-12-05
Publication date: 1926-10-19
Anticipated expiration: 1943-10-19

Description

Oct. 19 1926.

J. P. PETH MACHINE FOR SWAGING 0R BENDING SHEET METAL Filed Dec. 5. 1923 2 Sheets-Sheet 1 as??? w xw L do/z n P .I. P. PETH MACHINE FOR SWAGING 0R BENDING SHEET METAL Filed Dec. 5. 1923 2 Sheets-Sheet 2 7 LTO/ZYLP WP aid Patented Oct. 19, 1926.

UNITED srArEs 101m]?! rn'rn, or cI-Ircaeo, ILLINOIS.

MACHINE noR'swliGINe oniennnme SHEET METAL.

Apphcatibn filed December 551923. Serial No. 678,782.

laredgeota'sheet metal portion, of some article of manufacture, such as an incandescent-electric lampbulb, thereby to secure-the sheet metal portion in place.

More specifically considered, the object of the invention is to provide, a machine e pecially adapted for doing work of this kind,

inconnection with the manufacture of electric lamp bulbs, whereby the bulb is heldstatioiiary while thework is being done," so that thefilament of the' lamp; will-not be broken,

and whereby certain other advantages will be obtained in connection withthemanufacture t electrlc lamp bulbs or simllar artlcles,

, as will hereinafter more fully appear.

-It is'alsouanobject to provide certain de:

tails and features of construction tending to increase the general'etliciency and the desirability of a sheet metal bending, or crimping'or swaging machine of thiscparticular character,

To the foregoing and "other useful ends theinventionconsists in matters hereinafter se'trforthand'claImed andshown 1n the 1&6-

,companying drawings in which ,fFigure 1 is aside elevation of a sheet metal bending or crimping or swaging machine embodying the principles o tthe in vention. i

Figure 2 is .;an enlarged vertical section of said machine.

Figure 3 is a horizontal section on line 33 In Figure 2.

Figure 4 is an enlarged section of the chuck for holding the electric lamp bulb,

showing the operation ofbending or swaging the edge of the sheet metal sleeve on the baseofthe bulb, thereby to secure this-sleeve in place.

prises a'suitable body 1 having avertical tubular member 2 therein, said tubular men her having; an enlarged portion?) at its upper end, which portion is provided with a freely rotated pulley 4fhavinp; a. flange 5 at its "upper end. This pulleyrests on the base As thus illustrated, the invention con or body 1, as shown, and the tube 2 is lined in said body 1, and a vertically movable stem G Jis movable up and down in the tubular member 2, by means'of a chain? attached to the lower end thereof and leading to a foot treadle (not shown) or any other suitable means. A spring 8 is suitably applied to hold the stem 6 in normally raised position, and the upper portion'of this stem 6 is enlarged to form a chuck 9 having vertical slots 10 as shown. The screw member 11 is inserted downward in the chuck, as shown, to receive the lower end of the base'of the lamp bulbybeing adjustable for lamps of different sizes. The inner edge of the en largement 3 is beveled at 12, and the chuck 'is beveled at 13, and theresult is that when the stem 6 is pulled downward the chuck is contracted or pushed inward by thebevel 1.2, so that-the chuck will grip the base of thelamp bulb as shown in Figured, thus securely holding the lamp in position,

The rotating flange 5 is provided with arms ll pivoted thereon at 15, these armshaving springs 16 to normally'hold each arm against its stop 17, these stops being adjustable to regulate the positions of the arms, whereby said arms are tangentially arranged. Each arm has a bendingor swaginp; roll 18 to engagethe' brass sleeve 19 of thelamp bulb, and each armhas :2 more or less conical roller 20 for engagement with the groove 21 on the bottom of the plate which latter is supported by springs 23 arranged on the vertically disposed pins or rods 24 which are mounted to slideup and down in the body 1, in a manner that will be 3 lowerend on the body of the machine. This plate 27 has a central opening 30 through which to insert the lamp bulb into the chuck, and has its other end provided with a chain 31 leading downward to a foot'treadle, or

sense other means, for pulling the plate downward. Bearing points 32 are provided on the bottom of the plate 27 to bear upon the top of the plate 22, thereby to force the latter downward. The relative arrangement 'such that the groove 21 strikes the rollers 20 and thereby forces the arms l l around to the position shown in dotted lines in Figure 3, thereby to communicateor transmit power to force the swaging means 18 positively against the sheet metal. This moves the crimping or swagingrolls 18 into operative position, and causing the upper circular edge of the sleeve 19 to be bent or swaged over as shown in Figure 4, thus securing the brass sleeve 19 on the base of the lamp in the desired manner, the plate 27, 01" course, is held against rotation, so that the controlling means do not rotate with the swaging means. It will be seen that the rolls 18 have a suitable peripheral formation for this purpose, as shown in Figure 4, so that the upper edge of the portion 19 is bent or swaged over and turneddown to form an inwardly extending fiat flange on the base of the lamp.

When the plate 27 is released, the springs 23 will-raise the plate 22, and the arms 14 will assume their normal positions, so that the rolls18 will disengage the amp bulb. Then when the pull on the chain 7 is relaxed, the chuck 9 will release the lamp, and the latter can then be removed upwardly through the openings and 30, and another lamp can be placed in the machine for similar treatment.

It will be seen that the lamp is held sta} tionary in a very rigid and secure manner, and is not rotated or moved around, whereby there is no danger of breaking the filament of thelamp. The means for swaging or crimping or spinning over the edge of the b ass sleeve of the lamp operate very quickly and effectively, under manual control, and

t-hepower necessary for driving the pulley 4 can be of any suitable character. When the pull on the chain 7 is relaxed, the spring 8 forces the stem 6 upward, .t ius causing the chuck 9 to release the lamp bulb.

The construction shown and described is illustrative of the invention, and it is obvious that the construction can be changed or modified, in different ways, without departing from the spirit of the invention. It will be seen, for example, that the posts or r11fi2lgl1tSQ l can be arranged in any suitable manner, and that the machine may involve two or more of these posts, or any suitable number, but for convenience of illustration I two are shown, in the manner illustrated. It

is also obvious that any suitable or desired number of rolls 18 may be employed, without departing from the spirit of the inventien.

Spring press-ed elements 33 can be mounted in the body 1, to press against the bottom of the pulley i, to frictionally support the driving means, in order to present .enough friction to stop the pulley promptly when the power is disconnected therefrom. These elements 33 yield in a downwarddirection, it will be seen, when a downward pull is exerted on the chain 7, thus cushioning the action more or less. Also, it will be seen that stops 34 are preferably provided on the top ofthe disk or flange 5 to engage the arms lei, thereby to limit the movement of the swaging rolls 18 toward the work, in a manner that will be readily understood.

'These stops, like the stops 17, are adjustable V positively forced against the articles to be operated upon, by manual pow-er, as explained, or in any suitable way, and are withdrawn from engagement with the work by spring power applied in the manner shown and described.

What I claim as my invention is 1. In a machine for bending or swaging sheet metal, the combination ofa holding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming drivingmeans to rotate said i nstrumentalities, controlling means for said holding device, and controlling means for said instrumentalities, having engagement therewith but held against rotation, adapted by movement bodily toward metal to be swaged or bent, springs for bold ing said arms normally away from the work, stops to limit the movement of the swagiug rolls away from the work, conical rolls on said arms, a plate overlying said arms and provided with a circular groove to engage said conical rolls to force said swaging rolls into engagement with the work, and means for forcing said plate downward, forming the controller therefor.

2. In a machine for bending or swaging sheet metal, the combination of a holding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalities, controlling means for said holding device, and control.

ling meansfor, said instrumentalities, having engagement therewithbut held against'rotation, adaptedby movement bodily toward said article and said engaging means to transmit motion to positively force saidinstrumentalities against the sheet metal,

whereby said instrumentalities may be rendered operative or inoperative at will, while the' machine is in operation, said holding device comprising a chuck having means therein which are movable axially to grip the article'to be'operated upon, whereby the article is held stationary, and said chuck having an outer stationary portion which forms the axis of rotation for said rotating instrumentalities which perform the swaging operation, and for said driving means.

3. In a machine for bending or swaging sheet metal, the combination of aholding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalit-ies, controlling means for said holding device, and controlling means for said instrumentalities, having engagement therewith but held against rotation, adapted by movement bodily toward said article and said engaging means to transmit motion to positively force said instrumentalities against the sheet metal, whereby said instrumentalities may be rendered operative or inoperative at will, while the machineis in operation, said instruinentalities and driving means therefor comprising a pulley rotatable about said holding device as an axle, and swaging rolls movably mounted on said pulley, said controlling means for said instrumentalities overlying said rolls and having provisions for causing the rolls to move toward and away from the work.

7 4-. In a machine for bending or swaging sheet metal, the combination of a holding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalities, controlling means for said holding device, and controlling means for said instrumentalities, having engagement therewith but held against rotation, adapted by movement bodily toward.

said article and said engaging means to transmit motion to positively force said instrumentalities against the sheet metal, whereby said instrumentalities may be rendered operative or inoperative at will, while the'machine is in operation, said holding device comprising a chuck adapted and formed to grip the base portion of an electric lamp bulb, said last mentioned controlling means having an opening therein for said bulb, and said instrumentalities comprising means disposed in position to engage a sheet metal sleeve 011 the base of the bulb,

at-a point a distance above the lower end oit'saidbase'.

5. In a machine for bending or swaging sheet metal, the combination of a holding device to hold. the article to be operated upon, instrumentalities having meansto'engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalities, controlling means for said holding device, and controlling meansfor said instrumentalities, having engagement therewith but held against rotation, adapted by movement bodily toward said article and said engaging means to transmit motion to positively force said instrumentalities against the sheet metal, whereby said instrumentalities may be rendered operative or inoperative at will, while the machine is in operation, said holding device comprising a chuck for gripping the base portion of an electric lamp bulb, said last mentioned controlling means having an opening therein for said bulb, and adjustable means in said chuck to engage the lower end of the lamp base, whereby to accurately position the upper portion of the base for the operation of said instrumentalitics thereon.

6. In a machine for bending or swaging sheet metal, the combination of a holding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalities, controlling means for said holding device, and controlling means for said instrumentalities, having engagement therewith but held against rotation, adapted by movement bodily toward said article and said engaging means to transmit motion to positively force said in strumentalities against the sheet metal, whereby said instrumentalities may be rendered operative or inoperative at will, while the machine is in operation, in combination with spring pressed means to frictionally support and retard the rotation of said driving means, tending to press said driving means toward said last mentioned controlling means.

7. In a machine for bending or swaging sheet metal, the combination of a holding device to hold the article to be operated upon, instrumentalities having means to engage the sheet metal to be operated upon, a rotary support forming driving means to rotate said instrumentalities, controlling means for said holding device, and controlling means for said instrumentalities, having engagementtherewith but held against rotation, adapted by movement bodily toward said-article and said engaging means to transmit motion to positively force said instrume ntalities against the sheet metal, whereby said instrumentalities may be rendered operative or, inoperative at will, While the machine is in operation, in combination With stops to limit the movement of said instrumentalities toward the article to be operated upon, disposed in a plane between saiddriving means and said last mentioned Controlling means.

8. .A machine for performing Work on articles of manufacture, comprising engageing means for doing the required Work on the articles, a rotating table forming supporting and driving means to revolve said engaging means about the articles, controlling instrumentalities movable bodily toward said driving means and table and engaging means and thereby operativeto positively force said engaging means against the articles, having engagement therewith but held against rotation and a holder for said articles, "having springs between the driving means and the controlling 'inst-rumentalities and operative to disengage the engaging means from the Work. i

' JOHN P. PETH.,