CS228388B3 - Tool for ribbed casings production from metal sheets - Google Patents

Tool for ribbed casings production from metal sheets Download PDF

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Publication number
CS228388B3
CS228388B3 CS218382A CS218382A CS228388B3 CS 228388 B3 CS228388 B3 CS 228388B3 CS 218382 A CS218382 A CS 218382A CS 218382 A CS218382 A CS 218382A CS 228388 B3 CS228388 B3 CS 228388B3
Authority
CS
Czechoslovakia
Prior art keywords
jaw
welding
tool
forming
ribbed
Prior art date
Application number
CS218382A
Other languages
Czech (cs)
Slovak (sk)
Inventor
Peter Ing Csc Linhardt
Josef Ing Csc Lachvac
Juraj Ing Reiter
Ivan Ing Csc Rudenko
Miroslav Ing Slavsky
Jozef Vojtko
Original Assignee
Linhardt Peter
Josef Ing Csc Lachvac
Reiter Juraj
Rudenko Ivan
Miroslav Ing Slavsky
Jozef Vojtko
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linhardt Peter, Josef Ing Csc Lachvac, Reiter Juraj, Rudenko Ivan, Miroslav Ing Slavsky, Jozef Vojtko filed Critical Linhardt Peter
Priority to CS218382A priority Critical patent/CS228388B3/en
Priority to DE19833310681 priority patent/DE3310681A1/en
Publication of CS228388B3 publication Critical patent/CS228388B3/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/30Features relating to electrodes
    • B23K11/3009Pressure electrodes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Resistance Welding (AREA)

Abstract

On a tool for manufacturing sheet-metal ribbed casings by progressive bending and pressing together of the walls of individual ribs in two forming and calibrating jaw pairs displaceable in opposite directions on a plate, the object to be achieved is to provide such a tool by means of which the consolidation of the foot of the formed ribs of the ribbed part can be performed directly in the forming tool in a simple manner and the life of the welding electrodes can be increased. The invention achieves this object by the fact that the first welding electrode is accommodated in the lower forming jaw and the second welding electrode is accommodated in the lower calibrating jaw. By virtue of the fact that the welding electrodes are accommodated in the lower calibrating jaw and the lower forming jaw, the supply of welding current is fed into the area of the resistance projection welding and the welding of the foot of the formed ribs of the ribbed part is thus ensured.

Description

Vynález sa týká nástroja na výrobu rebrovaných plášťov z plechu postupným ohýbáním a vzájomným zlisovaním stien jednotlivých rebier v dvoch pároch tvárniacich a kalibrovacích čelustí vzájemné posuvných po základnej doske podl'a československého autorského osvedčenia. 224 585.The invention relates to a tool for the production of ribbed sheet metal sheaths by successively bending and pressing together the walls of the individual ribs in two pairs of forming and calibrating jaws movable on the base plate according to the Czechoslovak author certificate. 224 585.

V -súčasnosti .existuje niekolko konstrukci! tvárniacich nástrojov na zhotovovanie rebrovaných plášťov tvárněním plechu. Pre dosiahnutie požadovanej tuhosti rebrovaných dielcov prl namáhání v smere kolmo na pozdížnu os -rebier .při posobení sily v rovině plechu, na ktorom sú vytvořené chladiace rebrá, sa rebrá spevňujú v oblasti paty rebra roznými metodami zvárania. Sp-evinenie pátý -rebier elektrickým oblúkovým zvarom pod ochrannou atmosférou, připadne za použitia přídavného materiálu níe je technologicky .realizovatelné priamo v tvárniacom nástroji zhotovujúcom rebrá a vyžaduje oddělenu samostatná operáciu. Spájanie střen rebier bodovými zvarmi vzhladom na malý priestor -medzi jednotlivými rebramí je technologicky velmi náročné a dosahovaná životnost zváracích elektrod je velmi nízká. Odporový výstupkový zvaz střen rebier priamo v tvárniacom nástroji pre tvárněme rebier . vyžaduje velmi- náročná konštrukciu nástroje a kladie vysoké nároky na -materiál tvárniacich a kalibrovacích čelustí, ktoré pri poměrně malých prierezoch musia byť schopné prenášať velké tvárniace a kalibrovacie sily a -súčasne musia umožnit' přívod zváracieho -prúdu -radové desiatky kA.There are currently several designs! of forming tools for making ribbed casings by sheet metal forming. In order to achieve the required stiffness of the ribbed parts, in the direction perpendicular to the longitudinal axis of the rib, when the force is applied in the plane of the sheet on which the cooling ribs are formed, the ribs are reinforced in the ribbed region by various welding methods. The use of an electric arc weld under protective atmosphere, optionally using filler material, is technologically feasible directly in the rib forming tool and requires a separate operation. The joining of ribs by spot welding due to the small space - between individual ribs is technologically very demanding and the achieved lifetime of the welding electrodes is very low. The resistive protrusion of ribs directly in the forming tool for the forming ribs. It requires a very demanding tool design and places high demands on the material of the forming and calibrating jaws, which, with relatively small cross-sections, must be able to transmit large forming and calibrating forces and at the same time allow the welding current to be supplied.

Tieto nevýhody -rieši a zmierňuj-e nástroj na výrobu rebrovaných plášťov z plechu podlá vynálezu, ktorého podstata spočívá v tom, že -v dolnej tvárniacej čelustí je upevnená prvá zváracia elektroda a -v dolnej kalibrovacej -čelustí je upevněná -druhá zváracia elektroda. Pre zabezpečenle přívodu zváracieho prúdu -do miesta budúceho odporového- výstupkového zvaru je využitý vlastný materiál tvárněného -a -zváraného rebrovaného -dielca -takým sposobom, že prvá zváracia elektroda -sa hornou plochou dotýká tvárněného -a -zváraného rebrovaného dielca na prvej ploché -medzi η-tým rebrom a - predtvarovaným - vrcholom n-1 - rebrá. Druhá zváracia elektroda -sa prúdovou plochou dotýká, tvárněného a zváraného rebrovaného dielca na -druhej ploché -medzi n-tým rebrom a n+1 - rebrom rebrovaného - dielca. Týmto usporiadaním prvej -zváracej elektrody a druhej zváracej -elektrody sa dosiahne přívod zváracieho' prúdu zo zdroja prúdy do miesta odporového výstupkového zvaru, po přitlačení -tvárněného a zváraného rebrovaného -dielca hornou tvámiacou čelusťou a hornou kalibrovacou čelusťou, na dolnú tvárniacu čelusť -s- prvou zváracou -elektrodou. Prúdový obvod sa uzatvára cez tvárně né a zvárané n-té rebro rebrovaného dielca. Zváracia sila v -mieste odporového výstupkového -zvaru je vyvedená hornou tvárniacou -čelusťou a hornou kalibrovacou čelusťou a na tvárněný a rebrovaný zváraný -dielec do miesta odporového výstupkového zvaru je přenášená prvou kalibrovacou plochou -hornej kalibrovacej čeluste a druhou kalibrovacou plochou hornej tvárniacej čeluste.These disadvantages are solved and alleviated by the tool for manufacturing ribbed sheet metal sheaths according to the invention, which consists in that a first welding electrode is mounted in the lower forming jaw and a second welding electrode is mounted in the lower calibration jaw. In order to ensure the welding current is supplied to the location of the next resistive protrusion weld, the material itself of the molded and welded finned part is used in such a way that the first welding electrode with the upper surface contacts the molded and welded fin part on the first flat. η th rib and - preformed n-1 apex - ribs. The second welding electrode - with the current surface touches - the formed and welded rib part on the second flat - between the n-rib and the n + 1 - rib of the rib. This arrangement of the first welding electrode and the second welding electrode achieves the feeding of the welding current from the power source to the point of the resistance projection weld, after pressing the formed and welded finned section with the upper forming jaw and the upper calibrating jaw, the lower jaw. the first welding electrode. The current circuit is closed over the ductile and welded nth rib of the ribbed member. The welding force at the point of the resistive protrusion weld is discharged through the upper forming jaw and the upper calibrating jaw, and to the formed and ribbed welded portion is transferred through the first calibrating surface of the upper calibrating jaw and the second calibrating calibrating jaw.

Umiestnením prvej zváracej elektrody -do dolnej tvárniacej čeluste a druhej zváracej elektrody do dolnej kalibrovacej čeluste je umožněné vyrobit horná kalibrovaciu -čelusť a horná tvárniacú čelusť, ktoré sú vysoko namáhané, z vysoko pevných materiálov bez chladu na elektrická vodivost týchto materiálov.By placing the first welding electrode in the lower forming jaw and the second welding electrode in the lower calibration jaw, it is possible to produce the upper calibration jaw and the upper forming jaw, which are highly stressed, from high-strength materials without cooling the electrical conductivity of these materials.

Příklad vyhotovenia nástroja podlá vynálezu je zobrazený na priloženom výkrese, ktorý představuje čiastooný rez tvárniacimi a kalibrovacimi čelusťami v -mieste odporového výstupkového zvaru střen rebira tvárněného a zváraného rebrovaného dielca.An exemplary embodiment of a tool according to the invention is shown in the attached drawing, which is a partial cross-section of the forming and calibrating jaws at the location of the resistive protrusion weld of the ribs of the molded and welded ribbed member.

Nástroj pre výrobu rebrovaných plášťov pozostáva -z hornej tvárniacej čeluste 4, dolnej tvárniacej čeluste 5 v ktorej je upevněná prvá zváracia elektroda 55, ďalej pozostáva z hornej kalibrovacej -čeluste 7 a -dolnej kalibrovacej čeluste 6, -v ktorej je upevněná druhá zváracia -elektroda 65, ktorej prúdová - plocha 66 sa -dotýká tvárněného a zváraného rebrovaného dielca na druhej ploché 166 -medzi n-tým rebrom 110 a n+1 rebrom 100 tvárněného a zváraného -rebrovaného dielca 150.The tool for manufacturing the ribbed sheaths consists of an upper forming jaw 4, a lower forming jaw 5 in which the first welding electrode 55 is mounted, further comprising an upper calibration jaw 7 and a lower calibration jaw 6 in which the second welding electrode is mounted. 65, the jet surface 66 of which is in contact with the molded and welded rib member on the second flat 166 between the n-rib 110 and the n + 1 rib 100 of the molded and welded rib 150.

Prvá zváracia elektroda 55 upevněná v dolnej tvárniacej -čelustí 5 sa hornou plochou 56 dotýká tvárněného a zváraného rebrovaného dielca na- prvej ploché 156 m-edzi n-tým rebrom (110) a -predtvarovaným vrcholom 120 n-1 rebrá.The first welding electrode 55 mounted in the lower forming jaw 5, with the upper surface 56, contacts the molded and welded rib member on the first flat 156 m-th n-rib (110) and the preformed apex 120 n-1 ribs.

Upevněním prvej ' ' zváracej elektrody 55 dolnej tvárniacej čelustí 5 a -upevněním druhej zváracej elektrody 65 -v -dolnej kalibrovacej čelustí 6 je zabezpečený přívod zváracieho prúdu -zo zdroja prúdu Z do- miesta odporového výstupkového zvaru 151, po přitlačení tvárněného- a zváraného -rebrového dielca 150 tvárniacimi a- kalibrovacimi čelusťami. - Prúdový obvod sa uzatvára cez tvárněné a -zvárnené n-té rebro 110 rebrového dielca 150.By fastening the first welding electrode 55 of the lower forming jaw 5 and fixing the second welding electrode 65 in the lower calibration jaw 6, a welding current is provided from the power source Z to the resistive projection weld 151, after pressing the formed and welded ones. the rib part 150 by forming and calibrating jaws. The current circuit is closed through the formed and welded nth rib 110 of the rib member 150.

Zváracia -sila v -mieste -odporového výstupkového- zvaru 151 je vyvedená hornou tvárniacou čelusťou 4 a hornou kalibrovacou čelusťou 7 a na tvárněný a zváraný rebrovaný dielec 150 -do miesta odporového výstupkového zvaru 151 je prenášaná prvou kalibrovacou plochou 72 hornej kalibrovacej čeluste 7 a -druhou kalibrovacou plochou 45 hornej tvárniacej -čeluste 4.The welding force at the location of the resistive protrusion weld 151 is led out by the upper forming jaw 4 and the upper calibration jaw 7, and onto the formed and welded fin fin 150 is transferred to the location of the resistance protrusion weld 151 through the first calibration surface 72 of the upper calibration jaw. a second calibration surface 45 of the upper forming jaw 4.

Claims (2)

PREDMETSUBJECT 1. Nástroj na výrobu rebrovaných plášťov z plechu postupným ohýbáním a vzájomným zlisovaním stien jednotlivých rebier v dvoch pároch tvárniacich a kalibrovacich čelustí vzájemné posuvných po základovej doske podlá československého autorského osvedčenia 224 585, vyznaůujúci sa tým, že v dolnej tvárniacej čelustí (5) je upevněná prvá zváracia elektroda. (55) a v dolnej kalibrovacej čelustí (6) je upevněná druhá zváracia elektroda (65).A tool for manufacturing ribbed sheet metal sheaths by successively bending and pressing together the walls of the individual ribs in two pairs of forming and calibrating jaws movable on a base plate according to the Czechoslovak author's certificate 224 585, characterized in that it is fixed in the lower forming jaw (5). first welding electrode. (55) and a second welding electrode (65) is mounted in the lower calibration jaw (6). VYNÁLEZUINVENTION 2. Nástroj na výrobu rebrovaných plástev z plechu podlá bodu 1, vyznačujúci sa tým, že prvá zváracia elektroda (55) sa hornou plochou (56) dotýká tvárněného a zváraného dielca (150) na prvej ploché (156) medzí n-tým rebrom (110) a predtvarovaným vrcholem (120) n-1 rebra. a druhá zváracia elektroda (65) sa dotýká . plochou (66) tvárněného a zváraného dielca (150) na druhéj ploché (166) medzi n-tým rebro^m (110) a n+1 rebrom (100).2. The tool for manufacturing ribbed honeycombs of sheet metal according to claim 1, characterized in that the first welding electrode (55) contacts the molded and welded part (150) on the first flat (156) between the n-rib ( 110) and a preformed n-1 rib top (120). and the second welding electrode (65) contacts. the flat (66) of the molded and welded part (150) on the second flat (166) between the n-rib (110) and the n + 1 rib (100).
CS218382A 1982-03-29 1982-03-29 Tool for ribbed casings production from metal sheets CS228388B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CS218382A CS228388B3 (en) 1982-03-29 1982-03-29 Tool for ribbed casings production from metal sheets
DE19833310681 DE3310681A1 (en) 1982-03-29 1983-03-24 Tool for manufacturing ribbed sheet-metal casings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS218382A CS228388B3 (en) 1982-03-29 1982-03-29 Tool for ribbed casings production from metal sheets

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CS228388B3 true CS228388B3 (en) 1984-05-14

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DE (1) DE3310681A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584632B1 (en) * 1985-07-12 1989-11-17 Delquie Maurice MACHINE FOR FORMING PARALLEL WAVES IN A SHEET AND FOR WELDING EACH OF THESE WAVES AT ITS LONGITUDINAL ENDS

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DE3310681A1 (en) 1983-10-06

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