SE190883C1

SE190883C1 -

Info

Publication number: SE190883C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: G Larsson Foreliggande uppfinning avser en anordning vid rorsvetsmaskin, varvid ett slitsror under styrning genom en i slitsen ingripande styrkniv framfOres mellan profilerade valsar for sammanpressning ay rorkanterna, vilka darvid hopsvetsas med hjalp av en svetsbrfinnare, och kannetecknas darav, att styrkniven vid sin 'i rOret inskjutande ande uppbar en karnstang, i vilken en mot fogstallets insida vand vals är lagrad mellan styrkniven och svetsbrannaren, i andamal att pressande samverka meda fogstallets ut- sida angripande rune. Inventor: G Larsson The present invention relates to a device in a rudder welding machine, in which a slotted tube under guide through a guide knife engaging in the slot is advanced between profiled rollers for compression of the rudder edges, which are thereby welded together with the aid of a welder's finder. in the spirit projecting in the pipe, a core bar, in which a roller rolled towards the inside of the joint stall is stored between the guide knife and the welding torch, bore the purpose of pressing with the rune attacking the outside of the joint stall.

En foredragen utforingsform av uppfinningen beskrives narmare nedan under hamvisning till den bifogade ritningen, dar fig. 1 visar de tidigare kanda elementen vid rOrsvetsmaskiner och fig. 2 en perspektivvy ay anordningen enligt uppfinningen med r8ret bo rttag et. A preferred embodiment of the invention is described in more detail below with reference to the accompanying drawing, in which Fig. 1 shows the prior art elements of pipe welding machines and Fig. 2 a perspective view of the device according to the invention with the pipe bore.

Vid den kanda anordningen i fig. 1 frammatas ett i forvag format slitsr5r 1 i pilens riktning Indian tva profilerade valsar 2 och 3, vilka pressa slitskanterna mot varandra, samtidigt som de hopsvetsas med hjalp ay ett lampligt svetsdon, exempelvis en argonsvetsbrannare 4. Under frammatningen halles slitsrOret i ratt lage med hjalp ay en i slitsen inskjutande styrkniv 5, som är fast fOrbunden med rnaskinstativet, sasom antytts med hal 6 for fastbultar. In the known device in Fig. 1, a pre-shaped slit tube 1 in the direction of the arrow Indian two profiled rollers 2 and 3 are advanced, which press the slit edges against each other, at the same time as they are welded together by means of a suitable welder, for example an argon welder 4. During feeding The slotted tube is held in the steering wheel with the aid of a guide knife 5 projecting into the slot, which is fixedly connected to the rake machine frame, as indicated by hall 6 for fixed bolts.

For frammartning ay roret 1 anvandes en separat drivanordning (ej visad), sfisom en dragbank eller liknande. Frammatning av roret genom drivning av pressvalsarna 2, 3 skulle namligen leda till ojamn gang pa grund av valssektionernas olika periferihastighet. Genom svetsfogens kontraktion vici svalnandet far roret en avsevard krokning t foghallet, varfor en ofta omstandlig riktning maste foretagas efter hopsvetsningen. A separate drive device (not shown), such as a drawbar or the like, is used for advancing the tube 1. Feeding of the tube by driving the press rollers 2, 3 would in fact lead to uneven running due to the different peripheral speed of the roller sections. Due to the contraction of the weld joint during cooling, the pipe has a considerable hook to the joint hall, for which an often circumstantial direction must be made after the joint welding.

Vid anordningen enligt uppfinningen upp- Dupl. kl. 21 h: 32/10; 49 h: 34/01 bar, sasom fig. 2 visar, den fasta styrkniven vid sin undre, i det ej visade rorets slits inskjutande ande en karnstang 7, i vilken tva valsar 8 °oh 9 aro rOrligt lagrade i motsvarande forsankningar pa stangens oversida och pa Ouse sidor om svetsbrann.aren 4 och profilvalsparet 2, 3. Valsarna 8, 9 aro avsedda att anligga mot rOrslitsens resp. -fogens insida under pressamverkan med mittemot staende rullar 10 och 11 pa rorets utsida. Genom drivning av sistnamnda rullar Over ett vaxelhus 12 erhalles oklanderlig frammatning av r8ret, samtidigt som vals-rull-paret 8, 10 under planstyrning am rorkanterna utvalsar och forlanger dessa, och vals-rull-paret 9, 11 genom glattning och strackning ytterligare motverkar rorets tendons till krokning efter det fogen svalnat. In the device according to the invention up- Dupl. at 21 h: 32/10; 49 h: 34/01 bar, as Fig. 2 shows, the fixed guide knife at its lower, in the slot of the tube not shown projecting a core bar 7, in which two rollers 8 ° and 9 are properly stored in corresponding recesses on the upper side of the bar and on Ouse sides of the welding torch 4 and the profile roller pair 2, 3. The rollers 8, 9 are intended to abut against the tube slot resp. - the inside of the joint during press cooperation with opposite rollers 10 and 11 on the outside of the pipe. By driving the latter rollers over a gear housing 12, impeccable advancement of the tube is obtained, at the same time as the roller-roller pair 8, 10 under plane control at the rudder edges rolls out and demands these, and the roller-roller pair 9, 11 by smoothing and stretching further counteracts the tube. tendons to hook after the joint has cooled.

Uppfinningen är givetvis ej begransad till den visade speciella utforingsformen. Salunda kan man alltefter behovet noja sig med endast ett vals-rull-par, liksom rullarna 10 och 11 ej med nolvandighet behOva tagas i ansprak for rorframmatningen, om man Viredrager att ombesorja denna pa annat satt. Dot fir emellertid uppenbart, aft det basta resultatet oftast erhalles med den visade kombinationen. Det inses amen att valsarna 8, 9 kunna ersattas med andra rnothallsorgan med ekvivalent funktion. The invention is of course not limited to the particular embodiment shown. Thus, as required, one can be satisfied with only one roller-roller pair, just as the rollers 10 and 11 do not necessarily have to be used for the tube feed, if one prefers to arrange this in another way. Dot fir obvious, aft the best result is usually obtained with the combination shown. It will be appreciated that the rollers 8, 9 may be replaced with other rotary hall members having equivalent function.

Claims

Patent claim: 1.

Device in a rudder welding machine, wherein a slotted tube under control through a guide knife engaging in the slot is advanced between profiled rollers for compression on the rudder edges, which are then welded together with the aid of a welding torch, characterized in that 2 ---- - the guide knife (5) at its side projecting into the rudder and the press roller (10) opposite side carrying a karnsting (7), in which a welding torch (4). The roller (8) is stored between the guide knife (5) and the welding torch. Request publications: reindeer (4) in the spirit of co-operation with a press attacking the outside of the joint stall (10) .United Kingdom 798 495.

Device according to the patent claim 1. can be drawn by a likasa in the karnstkngen (7)