SE192157C1 - - Google Patents

Description

FOreliggande uppfinning hanfOr sig till en utveckling av smides- och stukmaskiner av namnda typ for att annu sakrare undanroja risken for nagot backmarke vid stukning av arbetsstyckena. Uppfinningen kannetecknas av att tangbygeln i och for forkortning av den i stukningsriktningen f8r tojning utsatta langden Or forsedd med en rorelsen i stukningsriktningen begransande, med maskinbadden samverkande anordning. Tangbygelns tojningsmojlighet minskas harigenom vasentligt vid samma styvhet i fOrhallande till tidigare tangbyglar, vilket avsevart bidrar till f orhindrande av bildningen av nagot backmarke pa arbetsstycket. The present invention relates to a development of forging and stucco machines of the type mentioned in order to eliminate even more safely the risk of some back ground when upsetting the workpieces. The invention can be characterized in that the pliers bracket, in order to shorten the length Or in the abdominal direction for stretching, is provided with a device limiting the movement in the abdominal direction, cooperating with the machine bath. The ability of the tongs to bend is thereby significantly reduced at the same stiffness in relation to previous tongs, which considerably contributes to preventing the formation of any back mark on the workpiece.

Den rorelsen begransande anordningen kan besta av en pa tangbygelns undersida anordnad klack, som da backarna arc slutna, lig ger fast an mot en klaek p0 maskinramen. Klaekarna skola ligga sO nara verktygen som mojligt, sa att tangbygelns f Or tojning utsatta stycke blir sh kort som mojligt. A andra sidan maste spdrrklackarna ligga sa langt bak, att verktygens atkomlighet och darmed automatisk transport av arbetsstyckena genom verktygen icke hindras. Foretradesvis placeras klackarna p0 ett avstand fran kla.mbackarna, som ar lika med stukningsstamplarnas slaglangd. The device limiting the movement can consist of a lug arranged on the underside of the pliers bracket, which, when the jaws are closed, rests firmly against a lug on the machine frame. The claws should be as close to the tools as possible, so that the exposed piece of the tong bar is as short as possible. On the other hand, the locking lugs must be so far behind that the accessibility of the tools and thus the automatic transport of the workpieces through the tools is not hindered. Preferably, the lugs are placed at a distance from the claw jaws, which is equal to the stroke of the upsets.

Klackarnas anslagsytor Oro lampligen plana. De kunna emellertid Oven i vlssa fall utRocas krokta, excmpelvis med en krakning, som svarar mot radien till tangbygelns vridningspunkt. The impact surfaces of the heels are worryingly flat. However, they can also, in some cases, extend the crook of Roca, for example with a crack, which corresponds to the radius to the point of rotation of the tongs.

Uppfinningen kommer i det foljande att beskrivas narmare med hdnvisning till bifogade ritningar, vilka som exempel visa en utforingsform. Fig. 1 visar en smides- och stukmaskin med tanggrepp sedd Iran sidan. Fig. 2 svarar mot fig. 1 °eh visar dessutom drivanordningen for stukningssladen och tangby- geln. Fig. 3 Or ett snitt efter linj eni fig. 2 med borttagen tangbygel och med planvy av stukningssladen. Fig. 4 Or en andvy av smides- och stukmaskinen enligt fig. 2 sedd i riktningen for pilen IV. The invention will be described in more detail below with reference to the accompanying drawings, which show by way of example an embodiment. Fig. 1 shows a forging and stucco machine with pliers grip seen from the Iran side. Fig. 2 corresponds to Fig. 1 ° and also shows the drive device for the sprain wire and the pliers bracket. Fig. 3 Or a section along the line in Fig. 2 with the pliers bracket removed and with a plan view of the sprain cord. Fig. 4 Or a view of the forging and stucco machine according to Fig. 2 seen in the direction of the arrow IV.

Pa maskinbadden 1 Or en tangbygel 2 lagrad svangbar omkring en axel 3. Tangbygelns 2 svangningsrorelse sker Over dragstangerna 4 och ett i det foljande beskrivet lanksystem. Den byre klambacken 5 Or forbunden med tangbygeln 2, medan den undre baeken 6 Or fast i maskinramen 1. Stukningsstamplarna 7 Oro lagrade i stukningssliden. 8, som Or riforlig i horisontalled. On the machine bath 1 Or a pliers bracket 2 mounted pivotable about an axis 3. The pivoting movement of the pliers bracket 2 takes place over the drawbars 4 and a linkage system described in the following. The upper jaw jaw 5 Or connected to the pliers jumper 2, while the lower jaw 6 Or fixed to the machine frame 1. The upsetting stamps 7 Oro are stored in the upsetting slide. 8, which Or riforlig in horizontal joint.

Fran drivmotorn 9, som Or anordnad pa en konsol 10 ph maskinrarnens baksida, sker kraftoverforingen medelst kilremmar 11 till 2— — svanghjulet 12, som ãr lagrat pa mellanaxeln 13. Fran denna overfores rOrelsen over ett kugghjul 14 till det stora kugghjulet 15, som är fast pa en vevaxel 16 och i vilket kopplingen 17 Sr inbyggd. Pa vevaxelns 16 vevtapp 16a ar lagrad tryckstangen. 18, som genom axeln 19 Sr ledbart forbunden med stukningssliden 8. Denna liar formen av en bygel och 5.r styrd i maskinramen 1 framfor och bakom vevaxellagringen vid 20 och 21. Pa detta satt uppnas stor styrlangd for stukningssliden 8. From the drive motor 9, which is arranged on a bracket 10 ph the rear of the machine gears, the power transmission takes place by means of V-belts 11 to 2 - - the flywheel 12, which is mounted on the intermediate shaft 13. From this the movement is transmitted via a gear 14 to the large gear 15, which is fixed to a crankshaft 16 and in which the coupling 17 is built-in. The push rod 16a is mounted on the crankshaft 16a of the crankshaft 16. 18, which through the shaft 19 is hingedly connected to the upsetting slide 8. This is in the form of a bracket and 5. is guided in the machine frame 1 in front of and behind the crankshaft bearing at 20 and 21. In this way a large guide length is obtained for the upsetting slide 8.

En lanktranamision Sr uttagen direkt fran tryckstangen 18 och driver tangbygelns 2 klamrOrelse medelst dragstangerna 4. Delta lanksystem bestar av draglankar 22, som aro forbundna med tryckstangen 18 vid 23 och ledbart forbundna med vinkelhavstangen 24 vid 25. Vinkelhavstangen 24 Sr vid 26 lagrad vridbar i maskinramen 1. Fran. vinkelhavstangen 24 overfores rorelsen medelst en tryckstang 27 till en knalank 28, som Sr lagrad vridbar vid 29 i maskinramens 1 framre del. Pa denna knalank 28 verka de vid maskinens sidor befintliga dragstangerna 4, vilkas Ovre del Over axeln 30 Sr ledbart forbunden "lied tangbygeln 2. I den undre delen sker forbindelsen mellan knalanken 28 och dragstangerna 1 medelst axeln 31. Pa vevaxeln 16 finnes vidare en friktionsbroms 32. A lance tranamision is taken directly from the push rod 18 and drives the clamp movement of the tong shackle 2 by means of the drawbars 4. Delta lance system consists of drawbars 22, which are connected to the push rod 18 at 23 and articulated to the angle sea rod 24 at 25. The angle sea rod 24 is rotatably mounted in the machine frame 1. Fran. the angular sea rod 24, the movement is transmitted by means of a push rod 27 to a beading 28, which is rotatably mounted at 29 in the front part of the machine frame 1. The tie rods 4 located at the sides of the machine act on this elbow 28, the upper part of the upper shaft 30 being hingedly connected "to the tong shackle 2. In the lower part the connection between the elbow 28 and the drawbars 1 is made by the shaft 31. On the crankshaft 16 there is also a friction brake. 32.

I tomgang rotera delarna 9-15 standigt och likformigt. For drivning av maskinen forbindes det stora kugghjulet 15 med vevaxeln 16 genom kopplingen 17, varigenom stukningssliden 8 drives fram och tillbaka Over tryckstangen 18. Genom dennas rorelse astadkommes samtidigt slutande och oppnande av tangbygeln 2 Over dragstangerna 4 genom ldnksystemet 22-31. Genom denna transmission uppnas, att backarna 5 och 6 klammas mot varandra genom tangbygeln 2 over ea .90 vevaxelgrader, forbli slutna over ytterligare 180 vevaxelgrader, medan stukningen sker medelst stukningssliden 8 och stukningsstamplarna 7, och backarna 5 och 6 Oppnas forst under den sista vridningen av vevaxeln 90° genom lyftning av tangbygeln 2. At idle, rotate parts 9-15 steadily and uniformly. To drive the machine, the large gear 15 is connected to the crankshaft 16 through the coupling 17, whereby the upsetting slide 8 is driven back and forth over the push rod 18. Due to its movement, closing and opening of the tong bracket 2 via the drawbars 4 through the link system 22-31 is effected. By this transmission it is achieved that the jaws 5 and 6 are clamped against each other through the pliers bracket 2 over ea. 90 crankshaft degrees, remain closed over another 180 crankshaft degrees, while the crunching takes place by means of the cranial slide 8 and the crunches 7, and the jaws 5 and 6 are opened first during the last rotation of the crankshaft 90 ° by lifting the pliers bracket 2.

For att annu sakrare forebygga marken fran klambackarna 5 och 6 pa arbetsstycket utan att tangbygeln behOver goras alltfor kraftig, sparras tangbygeln 2 i maskinramen 1 i slutet 'age mellan andarna. For detta andamal finnas pa tfingbygeln 2 en klack 33, som, dS backarna aro slutna, kan komma till fast anliggning mot en klack 34 i maskinramen 1. Om klackarna 33 och 34 skulle sak- nas, hade tangbygelns 2 tojning mellan vridningspunkten 3 och den rorliga matrisen mast vara lika stor som maskinbaddens tojning mellan vridningspunkten 3 och den fasta backen 6. Tack vare klackarna 33 och 31 behover emellertid endast tangbyigelns tOjfling mellan klacken 33 och den rorliga backen 5 vara lika med maskinbaddens tojning mellan klacken 34 och den fasta backen 6. Detta innebar, att maskindelarna bakom klackarna 33 och 34 kunna utforas i lattare konstruktion. In order to prevent the ground from the clamping jaws 5 and 6 on the workpiece even more safely without the pliers bracket having to be made too strong, the pliers bracket 2 is locked in the machine frame 1 at the end of the operation between the spirits. For this purpose, on the toe bracket 2 there is a lug 33, which, since the jaws are closed, can come into fixed abutment against a lug 34 in the machine frame 1. If the lugs 33 and 34 were missing, the tong bracket 2 had a bend between the pivot point 3 and the the movable matrix must be equal to the elongation of the machine bath between the pivot point 3 and the fixed hill 6. However, due to the lugs 33 and 31, only the pliers of the pliers bracket between the lug 33 and the movable hill 5 need be equal to the elongation of the machine bath between the lug 34 and the fixed hill 6. This meant that the machine parts behind the lugs 33 and 34 could be made in a lighter construction.

De mot varandra anliggande ytorna 33a och 34a pa. klackarna 33 och 34 kunna vara plana. De kunna emellertid aven uppvisa ett krokt forlopp 35 sued en krokning, vars radie utgar frail vridningscentrum for tangbygelns 2 axel 3, sasom antydes med en bra-ten linje i fig. 1. The abutting surfaces 33a and 34a pa. the heels 33 and 34 can be flat. However, they can also have a curved course 35 with a hook, the radius of which extends from the center of rotation of the axis 3 of the tongs 2, as indicated by a solid line in Fig. 1.

Claims (5)

Patentansprik:Patent claim: 1. Smides- och stukmaskin med tanggrepp och delade klambackar samt med mellan klamanordningen och maskinbadden befintliga stukningsstamplar, kanneteeknad darav, att tangbygeln (2) i och for forkortning av den i stukningsriktningen for tlijning utsatta langden Sr forsedd med en rOrelsen i stukningsriktningen begransande, med maskinramen (1) samverkande anordning (33).1. Forging and stucco machine with pliers grip and split clamp jaws and with existing stomping stamps between the clamping device and the machine bath, can be drawn therefrom, so that the pliers bracket (2) in order to shorten the length exposed in the upsetting direction is provided with a movement in the upsetting direction. machine frame (1) cooperating device (33). 2. Maskin enligt patentanspraket 1, kannetecknad darav, att den rorelsen begransande anordningen (33) utgOres av en pa tangbygelns (2) undersida anordnad klack, som da klambackama (5, 6) aro slutna ligger fast an mot en. klack (34) pa maskinramen (1).2. A machine according to claim 1, characterized in that the device (33) limiting the movement is constituted by a lug arranged on the underside of the tong bracket (2), which when the clamping jaws (5, 6) are closed abut against one. heel (34) on the machine frame (1). 3. Maskin enligt patentanspraket 2, kannetecknad darav, att klackarna (33, 34) Oro anordnade pa. ett avstand fran klarnbackarna (5, 6) raknat i maskinens langdriktning, som fir lika med stukningsstamplarnas (7) slaglangd.3. A machine according to claim 2, characterized in that the lugs (33, 34) are arranged on. a distance from the clear jaws (5, 6) shaved in the longitudinal direction of the machine, which is equal to the stroke of the upsets (7). 4. Maskin enligt patentanspraket 2 eller 3, kannetecknad darav, att de mot varandra anliggande ytorna (83a, 34a) pa klackarna (33, 34) dro plana.Machine according to claim 2 or 3, characterized in that the abutting surfaces (83a, 34a) on the lugs (33, 34) are flat. 5. Maskin enligt patentanspraket 2 eller 3, kanneteeknad darav, att anliggningsytorna (35) aro krOkta, exempelvis med tangbygelns (2) vridningseentrum som centrum. AnfOrda publikationer:Machine according to claim 2 or 3, characterized in that the abutment surfaces (35) are curved, for example with the center of rotation of the pliers bracket (2) as the center. Request publications: