DE709979C - Device for producing a cylinder bent from a rectangular sheet metal - Google Patents

Device for producing a cylinder bent from a rectangular sheet metal

Info

Publication number
DE709979C
DE709979C DEP77377D DEP0077377D DE709979C DE 709979 C DE709979 C DE 709979C DE P77377 D DEP77377 D DE P77377D DE P0077377 D DEP0077377 D DE P0077377D DE 709979 C DE709979 C DE 709979C
Authority
DE
Germany
Prior art keywords
sheet metal
producing
cylinder
rectangular sheet
welding
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEP77377D
Other languages
German (de)
Inventor
Dipl-Ing Albin Skorianetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J Pohlig AG
Original Assignee
J Pohlig AG
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 J Pohlig AG filed Critical J Pohlig AG
Priority to DEP77377D priority Critical patent/DE709979C/en
Application granted granted Critical
Publication of DE709979C publication Critical patent/DE709979C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08Making tubes with welded or soldered seams
    • B21C37/0815Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Description

Vorrichtung zur Herstellung eines aus einer rechteckigen Blechtafel zusammengebog,gttgn Zylinders Die Erfindung bezieht sich auf eine Vorrichtung zur Herstellung eines aus einer recht-Blechtafel zusammengebogenen Zylinders, insbesondere des Mantels :einer Förderbandtragrolle auf einer Biegepresse; sie besteht darin, daß die zur Endformung erforderlichen halbzylindrischen Druckkörper mit Schlitzen oder Öffnungen versehen sind, durch die hindurch die beim Druck zusammengepreßten Stoßkanten des Zylinderbleches durch dort eingeführte Schweißelektroden in an sich bekannter Weise durch Punktschweißung geheftet werden.Device for producing one from a rectangular sheet metal bent, gttgn cylinder The invention relates to a device for Manufacture of a cylinder bent together from a straight sheet metal, in particular of the shell: a conveyor belt roller on a bending press; it consists in that the semi-cylindrical pressure body with slots required for final shaping or openings are provided through which the compressed under pressure Butting edges of the cylinder sheet by welding electrodes introduced there in per se be tacked in a known manner by spot welding.

Es ist an sich bekannt, zwei Teile, die miteinander verschweißt werden sollen, gegeneinander auszurichten, in dieser gegenseitigen Lage durch Punktschweißung zu sichern und erst daraufhin die endgültige Längsschweißung vorzunehmen. Auch ist es bekannt, zwei stumpf aneinandergesetzte Rohrenden in der Weise durch Rundnaht miteinander zu verbinden, daß zunächst über die beiden Rohrenden ein biegsames, mit öffnungen versehenes Band gelegt und mittels einer Spannvorrichtung angezogen, dann durch die öffnungen des Bandes hindurch das Heften .der Schweißränder vorgenommen und nach Abnahme des Spannbandes die Rohrrundnaht geschweißt wird.It is known per se to align two parts that are to be welded to one another, to secure them in this mutual position by spot welding, and only then to carry out the final longitudinal weld. It is also known to connect two butt jointed pipe ends with one another by means of a round seam, that first a flexible band with openings is placed over the two pipe ends and tightened by means of a tensioning device, then the welding edges are stapled through the openings of the band and the pipe seam is welded after removing the tensioning band.

Während man bislang bei :der Herstellung der Mäntel von Tragrollen auf Biegepressen genötigt war, :das in Rohrform übergeführte Blech, weil :es nach Entnahme aus der Presse an der Stoßkante .auseinanderfedert, in eine Sondervorrichtung zu spannen, die die Stoßkanten einander so weit " nähert, daß die Schweißung vorgenommen werden kann, wird nach oder Erfindung durch die besondere Ausgestaltung der Druckkörper mit Bohrungen zur Elektrodeneinführung,die Möglichkeit geschaffen, beim Endpreßvorgangselbst die zusammengedrückten Stoßkanten in an sich bekannter Weise mit Punh-tschweißung zu heften, so daß nach Entnahme der Rolle aus der Presse die Längsschweißung sofort vorgenommen werden kann. Mit der Vorrichtung nach der Erfindung wird also ein ganzer Arbeitsvorgang und die dazu sonst erforderliche Sondervorrichtung gespart. Die Vorrichtung ist in der Zeichnung beispielsweise zur Darstellung gebracht, und zwar zeigen: Abb. i die beiden Druckkörper A und B der Biegemaschine, Abb.2 in vergrößertem Maßstab einen in der Lochebene quer dürch die Druckkörper geführten Schnitt.While one has so far been working on: the production of the jackets for idlers on bending presses was necessary: the sheet metal converted into tube form, because: it after Removal from the press at the abutting edge, sprung apart, into a special device to tension that the abutting edges so far "approaches one another that the weld is made can be, according to or invention by the special design of the pressure body with holes for electrode insertion, the possibility created during the final pressing process itself the compressed abutting edges in a known manner with puncture welding to tack, so that after removing the roll from the press, the longitudinal weld immediately can be made. With the device according to the invention is a whole This saves the work process and the special device otherwise required. The device is shown in the drawing, for example, namely show: Fig. i the two pressure bodies A and B of the bending machine, Fig.2 on an enlarged scale a cut through the pressure hull in the plane of the hole.

Der Blechstreifen wird in bekannter Weise auf der Biegemaschine in die zylindrische Form übergeführt und zwischen den beiden Druckkörpern A und B so gelegt, daß beim Zusammenpressen (Abb.2) die abgeschrägten Stoßkanten X, Y im Bereich der in bestimmten Abständen 1 indem oberen Druckkörper A angeordneten öffnungen o liegen, so daß gleich in der Biegepresse in zusammengepreßtein Zustand des Blechzylinders dessen Stoßfuge mittels der durch die öffnungen o eingeführten Schweißelektrode geheftet werden kann, worauf der geheftete Zylinder der Biegemaschine entnommen und längs geschweißt wird.The sheet metal strip is transferred in known manner to the bending machine in the cylindrical shape and placed between the two pressure bodies A and B such that when pressed together (Figure 2), the chamfered abutting edges X, Y in the region of at certain intervals 1 by the upper pressure element A arranged openings o lie, so that immediately in the press brake in the compressed state of the sheet metal cylinder, its butt joint can be tacked by means of the welding electrode inserted through the openings o, whereupon the tacked cylinder is removed from the bending machine and longitudinally welded.

Statt des dargestellten und beschriebenen Ausführungsbeispiels mit im Oberdruckkörper angeordneten Löchern oder Durchbrüchen könnte die Vorrichtung auch so ausgeführt werden"daß an einer oder beiden Längskanten zweier benachbarter Druckkörper Ausschnitte oder Ausnehmungen vorgesehen sind, durch die hindurch die Schweißelektrode zwecks Heftung der Stoßkante des Zylindermantels eingeführt werden kann.Instead of the illustrated and described embodiment with Holes or breakthroughs arranged in the upper pressure body could be the device also be carried out "that on one or both longitudinal edges of two adjacent Pressure hull cutouts or recesses are provided through which the Welding electrode are introduced for the purpose of tacking the joint edge of the cylinder jacket can.

Claims (1)

PATENTANSPRUCH: Vorrichtung zur Herstellung eines aus einer rechteckigen Blechtafel zusammengebogenen Zylinders, insbesondere des Mantels :einer Förderbandtragrolle auf einer Biegepresse, dadurch gekennzeichnet, daß die zur Endformgebung erforderlichen halbzylindrischen Druckkörper mit Schlitzen oder Öffnungen versehen sind, durch die hindurch die beim Druck zusammengepreßten Stoßkanten des Zylinderbleches durch dort eingeführte Schweißelektroden in an sich bekannter Weise durch Punkt-. schweißung geheftet werden.PATENT CLAIM: Device for producing one from a rectangular Sheet metal sheet of a bent cylinder, in particular the jacket: a conveyor belt roller on a bending press, characterized in that the required for final shaping semi-cylindrical pressure hulls are provided with slots or openings through through the butting edges of the cylinder sheet that are pressed together during pressure there introduced welding electrodes in a known manner by point. welding be stapled.
DEP77377D 1938-05-31 1938-05-31 Device for producing a cylinder bent from a rectangular sheet metal Expired DE709979C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP77377D DE709979C (en) 1938-05-31 1938-05-31 Device for producing a cylinder bent from a rectangular sheet metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP77377D DE709979C (en) 1938-05-31 1938-05-31 Device for producing a cylinder bent from a rectangular sheet metal

Publications (1)

Publication Number Publication Date
DE709979C true DE709979C (en) 1941-09-01

Family

ID=7393169

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP77377D Expired DE709979C (en) 1938-05-31 1938-05-31 Device for producing a cylinder bent from a rectangular sheet metal

Country Status (1)

Country Link
DE (1) DE709979C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432944C1 (en) * 1984-09-07 1986-05-15 SRT Solidresist-Rohrtechnik GmbH, 4770 Soest Apparatus for the production of tubes
DE102005006578B3 (en) * 2005-02-11 2006-03-16 Benteler Automobiltechnik Gmbh Production of tubes comprises locking an upper tool and a lower tool together with the tube profile lying inward, removing from the deformation press in the locked state, welding the longitudinal edges together and further processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432944C1 (en) * 1984-09-07 1986-05-15 SRT Solidresist-Rohrtechnik GmbH, 4770 Soest Apparatus for the production of tubes
DE102005006578B3 (en) * 2005-02-11 2006-03-16 Benteler Automobiltechnik Gmbh Production of tubes comprises locking an upper tool and a lower tool together with the tube profile lying inward, removing from the deformation press in the locked state, welding the longitudinal edges together and further processing

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