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DE707485C - Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe - Google Patents

Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe

Info

Publication number
DE707485C
DE707485C DEM140305D DEM0140305D DE707485C DE 707485 C DE707485 C DE 707485C DE M140305 D DEM140305 D DE M140305D DE M0140305 D DEM0140305 D DE M0140305D DE 707485 C DE707485 C DE 707485C
Authority
DE
Germany
Prior art keywords
burr
pipe
roller
weld
scraping
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
DEM140305D
Other languages
German (de)
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.)
FRITZ STIEHL DIPL ING
MEER AKT GES MASCHF
Original Assignee
FRITZ STIEHL DIPL ING
MEER AKT GES MASCHF
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 FRITZ STIEHL DIPL ING, MEER AKT GES MASCHF filed Critical FRITZ STIEHL DIPL ING
Priority to DEM140305D priority Critical patent/DE707485C/en
Application granted granted Critical
Publication of DE707485C publication Critical patent/DE707485C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B23D79/02—Machines or devices for scraping
    • B23D79/021—Machines or devices for scraping for removing welding, brazing or soldering burrs, e.g. flash, on pipes or rods
    • B23D79/023—Machines or devices for scraping for removing welding, brazing or soldering burrs, e.g. flash, on pipes or rods internally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/08—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for flash removal

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

Bei elektrischen Rohrschweißmaschinen. bei denen ein Schlitzrohr durch Zuführung von Strom durch aut dom Rohr taufende Elektrodenrollen auf Schweißhitze gebracht wird. während seitliche DruckroLlen den Schlitz des Rohres zusammenpressen, wodurch die Schlitzränder miteinander verschweißen, entsteht innen und außen ein Schweißgrat, dessen Beseitigung entweder sowohl innen als auch außen oder innen oder außen notwendig ist.With electric pipe welding machines. where a slotted tube by feeding Electricity is brought to welding heat through electrode rollers that are baptized in the tube. while lateral pressure rollers compress the slot of the pipe, creating the slot edges weld together, a weld burr is created inside and outside, its Elimination is necessary either inside or outside, or inside or outside.

Man hat versucht, diesen SchweißgratYou tried this weld burr

durch Schaber- oder Hobeleinrichtungen zu beseitigen. Dabei entsteht jedoch ein langer Span, der die Beseitigung erschwert.to be removed by scraper or planing devices. However, this creates a long one Chip that makes removal difficult.

Die Erfindung vermeidet diesen Mangel dadurch, daß vor dem Entfernen des Grates eine Unterteilung desselben in kurze Abschnitte quer zu seiner Längsrichtung erfolgt. Es ist zwar bekannt, beim mechanischenThe invention avoids this deficiency in that prior to removing the burr it is divided into short sections transversely to its longitudinal direction. It is well known when mechanical

an Bearbeiten von Metallen durch Ablösen einer Schicht eine Unterteilung des Arbeitsvorganges in vorbereitende Trennschnitte geringer Breite und in Arbeitsschnitte von großer Breite vorzunehmen, jedoch handelt es sich dabei um ein grundsätzlich anderes Arbeitsgebiet und auch um eine andere Ausführungsart. working on metals by removing a Layer a subdivision of the work process into preparatory separating cuts less Width and to be made in working cuts of great width, however, it is thereby a fundamentally different field of work and also a different type of execution.

Zur Ausführung des Gedankens der Erfindung' dient beispielsweise die in der Zeichnung dargestellte Einrichtung.To carry out the idea of the invention, for example, the one in the drawing is used facility shown.

Abb. ι zeigt einen Längsschnitt.Fig. Ι shows a longitudinal section.

Abb. 2 eine Draufsicht undFig. 2 is a plan view and

Abb. 3 einen Querschnitt.Fig. 3 shows a cross section.

Das Schlitzrohr/? wird in bekannter Weise von den Elcktrodenrollen/f, die den Strom rechts und links des Schlitzes dem Rohr zuführen und dieses dadurch auf Schweißhitze erhitzen, beeinflußt. Seitliche Druckrollen 1 bewirken das Zusammenstauchen des Schlitzes und damit die Verschweißung. Der äußere dabei entstehende Schweißgrat ist mit 2, der innere mit 3 bezeichnet. Bei der gewählten Ausführungsform und den dabei zugrunde gelegten Verhältnissen gelingt und genügt es, den inneren Schweißgrat 3 durch eine Falzvorrichtung4 glattzuwalzen. Die Glättrolle 5The slotted tube /? will in a known manner from the Elcktrodenrolle / f, which the current Feed the pipe to the right and left of the slot and heat it to welding heat, affected. Lateral pressure rollers 1 cause the slot to collapse and with it the welding. The outer weld burr that arises is with 2, the inner designated 3. In the selected embodiment and the underlying Conditions succeed and it is sufficient to cut the inner weld burr 3 by means of a seaming device4 to roll smooth. The smoothing roller 5

Claims (2)

kann dabei, um eine Nachstellung· zu ermöglichen, auf einer Exzenterwelle 0 angebracht werden. Die ganze Vorrichtung wird durch eine Stange 7, die an der Rohrformmaschine befestigt ist, in ihrer Lage gehalten.can be attached to an eccentric shaft 0 to enable readjustment. The whole device is held in place by a rod 7 which is attached to the pipe forming machine. Der äiiliere Schweißgrat dagegen wird gemäß der Erfindung in kurze Teilabschnitte unterteilt, und zwar durch eine Rolle 8, deren mittlerer Teil Kerben hat, die sich in den Schweißgrat einpressen, und zwar bis zur Rohroberflächc. Es wird dadurch die gewünschte Unterbrechung des Grates hervorgerufen und damit das Entstehen kurzer Späne bewirkt.The ailier weld burr, on the other hand, is in accordance with the invention divided into short sections, by a role 8, whose middle part has notches that press into the weld burr, up to Pipe surface c. This creates the desired break in the ridge and thus causes the formation of short chips. Wie der Querschnitt in Abb. 3 erkennen läßt, sind die Seitenteile der Rolle 8 so gestaltet, daß sie das Schlitzrohr R berühren, die Rolle 8 also vom Rohr mitgenommen wird, ohne daß ein besonderer Antrieb erforderlichAs the cross-section in Fig. 3 shows, the side parts of the roller 8 are designed so that they touch the slotted tube R , that is, the roller 8 is carried along by the tube without a special drive being required ?.o ist. Hinter der· Kerbvorrichtung im Sinne der Bewegung des Rohres befindet sich die Schabevorrichtung 9, die einen verstellbaren Meißel 10 trägt, der der Rohroberfiäche angepaßt ist. Die Schabevorrichtung 9 hobelt nun den Schweißgrat weg, wobei die Spanlänge der Teilung der Kerbwalze entspricht. Es entstehen also kurze Späne, die leicht aus der Maschine herausfallen und den kontinuierlichen Gang nicht beeinflussen.? .o is. Behind the notch device in terms of the movement of the pipe is the Scraper device 9 which carries an adjustable chisel 10 which is adapted to the pipe surface is. The scraping device 9 now planes away the welding burr, whereby the chip length corresponds to the pitch of the notch roller. So there are short chips that easily come out fall out of the machine and do not affect the continuous operation. Es ist selbstverständlich ohne weiteres möglich, statt der Walzenglättvorrichtung 4 im Innern des Rohres eine ähnliche Einrichtung für das Abschaben des Grates (Abb. ι) anzubringen., so daß also auch der Grat im Innern abfällt.It is of course easily possible to install a similar device for scraping off the burr (Fig. 1) in the interior of the tube instead of the roller smoothing device 4, so that the burr inside also falls off. Zu diesem Zwecke kann vor oder hinter der Kerbwalze ein Meißel 11 angebracht werden, der ähnlich dem Meißel io den Innengrat abschabt. Dabei werden die Späne von dem freien Raum K aufgenommen. Es könncn z. B. mehrere Abnahmeeinrichtungeii, z. B. Meißel oder Schaber, hintereinander angeordnet werden, um den Schweißgrat in einzelne Schichten zu beseitigen bzw. ein Xachschaben vorzunehmen; ebenso können, wenn gewünscht, mehrere Kerbvorrichtungen in Verbindung mit mehreren Schabern angeordnet sein.For this purpose, a chisel 11 can be attached in front of or behind the notch roller, which, similar to the chisel 10, scrapes off the inner burr. The chips are taken up by the free space K in the process. It can e.g. B. several Abnahmeeinrichtungeii, z. B. chisels or scrapers can be arranged one behind the other in order to remove the weld burr in individual layers or to carry out a scraping; also, if desired, multiple scoring devices can be arranged in conjunction with multiple scrapers. Patentansi'KÜche:Patentansi'KÜche: i. Verfahren zur Beseitigung des Grates an der Schweißnaht von aus Bandeisen zu einem Rohr geformten elektrisch geschweißten Rohren, dadurch gekennzeichnet, daß vor dem Entfernen des Grates eine l'nter· teilung desselben in kurze Abschnitte quer zu seiner Längsrichtung erfolgt.i. Method of removing the burr on the weld from the strip iron to Electrically welded tubes formed into a tube, characterized in that before removing the burr, apply a l'nter division of the same into short sections transversely to its longitudinal direction. 2. Werkzeug zur Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß vor der Schabevorrichtung (9) eine vor dem vorbeibewegten Rohr (R) angetriebene Kerbwalze 'S) angeordnet ist.2. Tool for carrying out the method according to claim 1, characterized in that in front of the scraping device (9) a notching roller 'S) driven in front of the pipe (R) being moved past is arranged. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings iu:ltt-l\. <.i ihm 1iu: ltt-l \. <.i him 1 i-H-mirr.KETlEI.i-H-mirr.KETLEI.
DEM140305D 1938-01-07 1938-01-07 Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe Expired DE707485C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM140305D DE707485C (en) 1938-01-07 1938-01-07 Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM140305D DE707485C (en) 1938-01-07 1938-01-07 Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe

Publications (1)

Publication Number Publication Date
DE707485C true DE707485C (en) 1941-06-23

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DEM140305D Expired DE707485C (en) 1938-01-07 1938-01-07 Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925822C (en) * 1951-03-16 1955-03-31 Kocks Gmbh Friedrich Plant for the production of tubes from strips
DE942390C (en) * 1953-04-21 1956-05-03 Mannesmann Ag Device for the continuous removal of the inner burr from pipes welded from steel strips
EP0045733A2 (en) * 1980-08-04 1982-02-10 VOEST-ALPINE Aktiengesellschaft Device for removing the external flash from longitudinally welded tubes
DE3323286A1 (en) * 1982-06-29 1983-12-29 Nippon Steel Corp., Tokyo Method and apparatus for the fabrication of spiral-welded steel pipes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925822C (en) * 1951-03-16 1955-03-31 Kocks Gmbh Friedrich Plant for the production of tubes from strips
DE942390C (en) * 1953-04-21 1956-05-03 Mannesmann Ag Device for the continuous removal of the inner burr from pipes welded from steel strips
EP0045733A2 (en) * 1980-08-04 1982-02-10 VOEST-ALPINE Aktiengesellschaft Device for removing the external flash from longitudinally welded tubes
EP0045733A3 (en) * 1980-08-04 1982-06-02 Voest-Alpine Aktiengesellschaft Method and device for removing the external flash from longitudinally welded tubes
DE3323286A1 (en) * 1982-06-29 1983-12-29 Nippon Steel Corp., Tokyo Method and apparatus for the fabrication of spiral-welded steel pipes

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