SE127361C1

SE127361C1 -

Info

Publication number: SE127361C1
Authority: SE
Publication date: 1949-01-01

Description

KLASS 49 d:3/06 BEVIDAT DEN 8 DECEMBER 1949 PATENTTID FRAN DEN 12 APRIL 1948 PUBLICERAT DEN 7 FEBRUARI 1950. CLASS 49 d: 3/06 PROVIDED ON 8 DECEMBER 1949 PATENT PERIOD FROM 12 APRIL 1948 PUBLISHED 7 FEBRUARY 1950.

Hartill en ritning.. To this a drawing ..

E. E. AXBLOM, ESKILSTUNA. E. E. AXBLOM, ESKILSTUNA.

Automatisk kuggfrasmaskin. llppfinnare: 0. Gustavsson. Automatic gear milling machine. llppfinnare: 0. Gustavsson.

Foreliggande uppfinning avser en enkel och praktisk kuggfrasmaskin. Forut kanda maskiner for framstallning av kugghjul aro i allmanhet sa anordnade, att de fordra standig och noggrann tillsyn och kontroll under arbetsorperationen. Dâ dylika maskiner maste skatas manuellt fordras det stor kunnighet och precision att framstalla ett kugghjul med den onskvarda, ratta kuggformen. Arbetsoperationen blir i sadana fall synnerligen tidsMande och kostsam samtidigt som de kugghjul som framstallas icke alltid ha exakt kuggform. Maskiner far automatisk frasning av kugghjul som tidigare foreslagits bli 'synnerligen komplieerade och kostsamma. The present invention relates to a simple and practical gear milling machine. Prior art machines for the manufacture of gears are generally so arranged that they require constant and careful supervision and control during the work operation. When such machines have to be skated manually, great knowledge and precision is required to produce a gear with the unobtrusive, steering gear shape. In such cases, the work operation becomes extremely time-consuming and costly, at the same time as the gears that are produced do not always have an exact gear shape. Machines can automatically mill gears that have previously been proposed to be extremely complicated and expensive.

Problemet att erna en maskin for framstallning av kugghjul, som arbetar fullstandigt autornatiskt, men andock staller sig billig i framstallningskostnad pa grtind av sin enkelhet är fullstandigt lost enligt foreliggande uppfinning. Densamma besitter dessutorn den fordelen, som praktiska pro-v utvisat, .att de kugghjul, som framstallas erhalla exakt den kuggform som onskas. The problem of being a gear manufacturing machine which operates completely automatically, but still stands cheaply in manufacturing cost due to its simplicity, is completely solved according to the present invention. It also has the advantage that practical tests have shown that the gears which are produced obtain exactly the desired gear shape.

Uppfinningen kannetecknas i huvudsak darav, att a ena anden av en i maskinstativet roter- och forskjutbart lagrad axel är anbringhart ett, som ledarhjul eller mall tjanande kugghjul, intill vilket ett eller flera amnen till kugghjul av samma dimension som ledarhjulet aro anbringbara, saint att ledarhjulets kuggar kunna bringas i ingrepp med en snackfras, som drives fran en lamplig drivkalla och vid sin rotation i sin tur driver ledarhjulet, varande maskinen f8rsedd med en anordning for axiell forskjutning av axeln ph sadant satt under maskinens gang, att snackfrasen fOrst driver ledarhjulet och darefter, vid axelns farskjutning fraser ut kuggar ur. amnet (fimnena), som i sin tur drives runt medelst frasen. 1Vlaskinens konstruktion och arbetssatt framgar av nedanstaende detaljbeskrivning, vilken hanvisar till bifogade ritning, dar maskinen visas schematiskt atergiven for att klarlagga principen far densamma. Fig. 1 visar maskinen sedd fran ena anden och fig. 2 densamma sedd uppifran. Fig. 3 och 4 visa sektioner efter linjernaresp. IV—IV I fig. 2. The invention is mainly characterized in that one of the axes rotatably and displaceably mounted in the machine frame is a mounting resin, a gear serving as a guide wheel or template, next to which one or more gears of the same dimension as the guide wheel are attachable, such that the guide wheel cogs can be brought into engagement with a snack phrase, which is driven from a suitable driving force and in its rotation in turn drives the guide wheel, the machine being provided with a device for axial displacement of the shaft ph so sat under the machine, that the snack phrase first drives the guide wheel and then , when the axle is pushed, the teeth are cut out. amnet (fimnena), which in turn is driven around by means of the phrase. The construction and operation of the machine is shown in the following detailed description, which refers to the accompanying drawing, in which the machine is shown schematically rendered in order to clarify the principle. Fig. 1 shows the machine seen from one spirit and Fig. 2 the same seen from above. Figs. 3 and 4 show sections after linear response. IV — IV I Fig. 2.

Pa ritningen beteeknar 1 maskinens stativ, med vilket är f8renad ett lager 2 for en horisontalt lagrad axel 3. Som framgar, sarskilt av fig. 2 Sr p5 denna axels 3 ena fria ande anbringat ett kugghjul 4. Detta kugghjul Sr ph forhand frast med onskvard kuggindelning och tjanar som mall eller ledarhjul for maskinens framstallning av andra kugghjul av samma dimension pa satt, som nedan narmare skall beskrivas. Med 5 betecknas ett eller flera amnen, ur vilka nya kugghjul skola framstallas, och vilka aro fastade mull ledarhjulet 4 pa axeln 3. Ax fig. 2, 3 oeb. 4 framgar att axelns 3 ena dude Sr omgiven av en med maskinstativet fast forenad, hylsformad del 6, som Sr uppslitsad ett stycke, sa att en appning bildas. I denna oppning Sr anordnat ett steghjul 7, forenat med en spindel 8, som Sr farsedd mod en ratt 10 eller dylikt. Axeln. 3 Sr forsedd med lager far en axel 11, ph vii-ken i sin tur Sr lagrad en svangbar medbringare 12, som Sr samverkbar med steghjulet 7. Med 13 betecknas en bladfjader, som stra-var att hSlla medbringaren 12 tryckt mot den hylsformade delens 6 centrum. Medbringaren 12 Sr forsedd med en arm 14, soul_ Sr sam-verkbar med ett inhtbockat parti eller anslag 15 av delen 6. I fig. 1 och 2 betecknar 16 en vanlig snackfras, som drives medelst en godtyckligt utformad drivkalla. Snaekfrasens 16 nedre axelande Sr lagrad i en installbar lagringsanordning 17 for snackfrasens 16 installning relativt ledarhjulet beroende pa kugghjulens dimensioner. In the drawing, 1 denotes the stand of the machine, with which is mounted a bearing 2 for a horizontally mounted shaft 3. As can be seen, especially from Fig. 2, on one free end of this shaft 3 a gear 4 is mounted. gear division and serves as a template or guide wheel for the machine's production of other gears of the same dimension in a set, which will be described in more detail below. Denoted by 5 is one or more blanks, from which new gears are to be produced, and which are attached to the earth by the guide wheel 4 on the shaft 3. Ax Figs. 2, 3 oeb. 4 shows that one dude Sr of the shaft 3 is surrounded by a sleeve-shaped part 6 firmly joined to the machine frame, which Sr is slit in one piece, so that an opening is formed. In this opening Sr arranged a step wheel 7, joined to a spindle 8, which Sr is fitted against a steering wheel 10 or the like. The shoulders. 3 Is provided with bearings for a shaft 11, ph viiken in turn is mounted a pivotable carrier 12, which is cooperable with the step wheel 7. By 13 is meant a leaf spring, which straws to keep the carrier 12 pressed against the sleeve-shaped part. 6 centers. The carrier 12 Sr is provided with an arm 14, soul_ Sr cooperatable with a bent-in portion or stop 15 of the part 6. In Figs. The lower axle end of the snack phrase 16 is stored in an installable storage device 17 for the installation of the snack phrase 16 relative to the guide wheel depending on the dimensions of the gears.

For att liana ledarhjulet 4 och amnet 5 kvar i frammatat lage under arbetsoperationen Sr ph lagret 2 anbragt ett lager 18, i vilket Sr ingangad en skruv 19, vars ena ande Sr forenad med en rulle 20 och Tars andra ande Sr forsedd med en upplindningstrumma 21 for en wire 22. Namnda wire 22 stracker sig upp Over en fast anbragt brytrulle 23 och ned till en tyngd eller vikt 24. Slutligen betecknar 25 en ratt for kringvridning av skruven 19. Ge- — — nom wiren 22 och tyngden 24 stravar skruYen 19 att ingangas i lagret 18, sa att rullen 20 trycker mot Lund: 5. In order to line the guide wheel 4 and the blank 5 in the feed position during the working operation Sr ph the bearing 2 arranged a bearing 18, in which Sr a screw 19 is inserted, one end Sr of which is joined by a roller 20 and Tars other end Sr provided with a winding drum 21 for a wire 22. Said wire 22 extends upwards over a fixedly arranged breaking roller 23 and down to a weight or weight 24. Finally, 25 denotes a knob for rotating the screw 19. Through the wire 22 and the weight 24 the screw 19 tightens. to be entered in the bearing 18, said that the roller 20 presses against Lund: 5.

Sedan ett ledarhjul 4 och ett godtyckligt antal kugghjulsamnen 5 anbragts pa maskinens axel 3 och snackfrasen 16 inpassats yid ledarhjulet 4 kan snackfrdsen bringas att rotera. Harvid drives ledarhjulet 4, axeln 3 och medbringaren 12, som vid -varje vary griper i steghjulet 7, som vrider spindeln 8, sa. att denna gangas in i styrningen 9 och skjuter axeln 3 ett stycke i pilriktningen (fig. 2). Armen 14 samverkar darefter med det ombockade partiet 15, sa att medbringaren 12 lyftes upp frail sitt ingrepp med steghjulet 7. Det ombockade partiet 15 kan omstallas, sa att medbringaren 12 upplyftes forst ndr derma frammatat steghjulet 7 sâ mycket som erfordras for axelns 3 forskjutning. Enligt uppfinningen kunna ett godtyckligt antal kugghjulsamnen 5 anbringas 5. axeln 3. Under maskinens gang frasas successivt alla amnena. .5, varvid, sedan. ledarhjulet 4 lamnats av snackfrasen 16, de i amnena 5 urfrasta kuggarna ingripa i snackfrasen 16, sum driver Ananena 5 tills alla dessa aro• fardiga. Fran det att ledarhjulet 4 tillkopplats snackfrasen 16, frammatningsanordningen installts far lamp-hg frammatningsldngd oeh rullen 20 bringats till anliggning mot ett anane 5 och snackfraseri 16 bringats i rotation arbetar maskinen fullstandigt automatiskt och med exakt precision. Ingen som heist tillsyn ay maskinen behovs under tiden som amnena 5 bear-betas. After a guide wheel 4 and an arbitrary number of gear assemblies 5 are mounted on the shaft 3 of the machine and the snack phrase 16 is fitted to the guide wheel 4, the snack feed can be caused to rotate. Then the guide wheel 4, the shaft 3 and the carrier 12 are driven, which at each vary grip the step wheel 7, which rotates the spindle 8, sa. that this is inserted into the guide 9 and pushes the shaft 3 a distance in the direction of the arrow (Fig. 2). The arm 14 then cooperates with the folded portion 15, so that the carrier 12 is lifted up from its engagement with the step wheel 7. The folded portion 15 can be rearranged, so that the carrier 12 is only lifted when the feed wheel 7 is advanced as much as is required for the displacement of the shaft 3. According to the invention, any number of gear blanks 5 can be applied 5. shaft 3. During the operation of the machine, all blanks are successively milled. .5, whereby, then. the guide wheel 4 has been paralyzed by the snack phrase 16, the cogs milled out in the members 5 engage the snack phrase 16, which drives the pineapple 5 until all these are ready. From the fact that the guide wheel 4 is connected to the snack phrase 16, the feed device is installed before the lamp-high feed weight and the roller 20 are brought into abutment against a pinion 5 and the snack phrase 16 is brought into rotation, the machine operates completely automatically and with precise precision. No overhaul of the machine is required during processing.

Maskinen kan anvandas for frainstallning ny vanliga kugglijul ay godtyckliga storlekar. Aven kugghjul, drev, snackhjul eller dylikt med snedstallda, koniska eller pa. ,annat salt utformade kuggar kunna framstallas medelst maskinen. The machine can be used for uninstalling new standard gears ay arbitrary sizes. Also gears, gears, snack wheels or the like with inclined, conical or on. , other salt-shaped teeth can be produced by means of the machine.

Ovanstaende beskrivning och hifogade ritning aro avsedda att tydliggora uppfinningens princip. Fiera andra utforingsformer an den ritningen visade aro• givetyis tankbara in-em uppfinningens ram. The above description and the accompanying drawing are intended to clarify the principle of the invention. Several other embodiments of the drawing are shown in the scope of the invention.

Claims

Patent claim:

1. Automatic gear milling machine, can drawn ddray, to on. a shaft (3) arranged in a machine frame (1) rotatably and displaceably mounted, is a gear (4) serving as a guide wheel or template, next to which one or more blanks (5) for gears ay the same dimension and with the same axis of rotation which the guide wheel (4) pulls attachable to the same axis !, and that the teeth of the guide wheel (4) can be brought into engagement with a snack phrase (16), which is driven from a suitable drive source and in turn drives the guide wheel (4), the machine being provided with a device for displacing the shaft (3) in its longitudinal direction in such a way that during the operation of the machine, the snack furnace (16) first drives the guide wheel (4) and then at the displacement of the shaft (3) grits teeth out of the workpiece (s) (5), which in turn is driven around by the snack phrase (16).

2. A machine according to claim 1, characterized in that the device for axial displacement of the shaft (3) during the operation of the machine is constituted by a reducer (12) connected to the shaft (3), which cooperates with each shaft of the shaft (3). step wheel (7), which is connected to a stepped spindle (8), which is mounted in a fixed guide (9) in a yid machine frame (1) and which spindle (8) is inserted into the guide (9) at each step of the step wheel (7). ) and displaces the shaft (3) a predetermined piece in one direction.

Machine according to claims 1 and 2, characterized in that the carrier (12) is provided with an arm (14) which, or that the carrier (12) actuates the step wheel (7), co-operates with a guide (9) or a stroke (15) in such a way that the carrier (12) is lifted from silt engagement with the step wheel (7), and that the guide (9) or the stop (15) can be adjusted on such a salt that the arm (14) cooperates with the delta for the lifting of the co-ringer (12) when the step wheel (7) is actuated sO. much required for the onskyardic displacement of the shaft (3).

4. A machine according to claim 1, characterized in that a bearing (18) is joined to the machine frame (1), into which is inserted a screw (19), one end of which is provided with a roller (20), which is intended to abut against a gear assembly (5) and the other dude of which is provided with a. winding drum (21) for a wire (22), son "lOper Over one or four breaking rollers (23) and whose free spirit Si the dog with a weight or weight (24), so that the screw (19) strains to be passed against the workpiece (5), so that the roller (20) is kept in a pressed note during the operation of the machine 5. Machine according to patent claim 1, characterized in that the snack phrase (16) with its one end is stored in an installable storage device (17) suitably consisting of of a line a1 fixed to the machine frame (1), provided with a displaceable bearing for the spirit of the snack phrase (16), so that the snack phrase (16) can be installed relative to the guide wheel (4) depending on

5. gear dimension. SIveliholm 1950. ICungl, Bolitr. P. A. Norstedt & Rifler 500080