AT108396B - Method and machine for bending pipes. - Google Patents

Method and machine for bending pipes.

Info

Publication number
AT108396B
AT108396B AT108396DA AT108396B AT 108396 B AT108396 B AT 108396B AT 108396D A AT108396D A AT 108396DA AT 108396 B AT108396 B AT 108396B
Authority
AT
Austria
Prior art keywords
bending
machine
bending pipes
pipes
mandrel
Prior art date
Application number
Other languages
German (de)
Original Assignee
Vollmann & Schmelzer
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 Vollmann & Schmelzer filed Critical Vollmann & Schmelzer
Application granted granted Critical
Publication of AT108396B publication Critical patent/AT108396B/en

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren und Maschine zum Biegen von Rohren. 



   Beim Biegen von Rohren, insbesondere von   dünnwandigen   Rohren, wie man sie beispielsweise für Portierenstangen verwendet, ergibt sieh der Nachteil, dass auf der Innenseite der Biegungsstelle starke Falten senkrecht zur Rohrachse entstehen, welche unschön wirken. Sollen diese Falten nach Möglichkeit vermieden werden, so wird das Material auf der Aussenseite der Biegungsstelle beim Biegen sehr stark auf Zug beansprucht, so dass es sehr leicht   rei#t. Man kann nämlich in   diesem Fall das Material auf der Innenseite der Biegungsstelle nicht   genügend zusammendrücken, so dass   auf der Aussenseite eine sehr starke Dehnung auftritt. 



   Um diesen Nachteil zu beseitigen, werden gemäss der vorliegenden Erfindung auf der Innenseite 
 EMI1.1 
 



   Ein anderer Weg, das neue Verfahren   durchzuführen,   besteht darin. dass ein mit   Längsrillen   velsehener Dorn um ein feststehendes. am Umfang mit entsprechenden Längsrippen versehenes Formstück wandert. 
 EMI1.2 
 des Weges des Hebels o und damit auch zur Begrenzung der Vorbewegung de'"Dornes q. 



   Wie die Fig. 2 und 3 erkennen lassen, ist die profilierte Nut   t     des Formstückes a   auf einem Teil   des Umfanges mit Rippen s versehen. Die Rippen s liegen an der gekrümmten Stelle des Formstitekes, durch welche die Biegung des Rohres bewirkt werden soll.   

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 EMI2.1 
 
An dem Vorderende des Dornes q ist eine Kugel v mittels Zapfens w angelenkt. Mit der Kugel x ist eine weitere Kugel x durch das Gelenk, y   verbunden.   
 EMI2.2 
 



   'PATENT-ANSPRÜCHE : 1. Verfahren zum   Biegen von Rohren, dadurch gekennzeichnet,   dass auf der Innenseite, der 
 EMI2.3 




   <Desc / Clms Page number 1>
 



  Method and machine for bending pipes.



   When bending pipes, in particular thin-walled pipes, such as those used for porting rods, there is the disadvantage that strong folds occur on the inside of the bending point perpendicular to the pipe axis, which look unattractive. If these folds are to be avoided as far as possible, the material on the outside of the bending point is subjected to very high tensile loads during bending, so that it tears very easily. In this case, the material on the inside of the bending point cannot be compressed enough, so that a very strong stretch occurs on the outside.



   In order to eliminate this disadvantage, according to the present invention, on the inside
 EMI1.1
 



   Another way of doing the new procedure is by doing this. that a mandrel with longitudinal grooves around a stationary one. on the circumference provided with corresponding longitudinal ribs molding migrates.
 EMI1.2
 the path of the lever o and thus also to limit the forward movement of the '"mandrel q.



   As shown in FIGS. 2 and 3, the profiled groove t of the molded piece a is provided with ribs s on part of the circumference. The ribs s lie at the curved point of the form piece, through which the bending of the pipe is to be effected.

 <Desc / Clms Page number 2>

 
 EMI2.1
 
A ball v is hinged to the front end of the mandrel q by means of a pin w. Another ball x is connected to the ball x by the joint, y.
 EMI2.2
 



   'PATENT CLAIMS: 1. Method for bending pipes, characterized in that on the inside, the
 EMI2.3


 

Claims (1)

EMI2.4 EMI2.4
AT108396D 1926-05-29 1927-01-08 Method and machine for bending pipes. AT108396B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE108396X 1926-05-29

Publications (1)

Publication Number Publication Date
AT108396B true AT108396B (en) 1927-12-27

Family

ID=5651332

Family Applications (1)

Application Number Title Priority Date Filing Date
AT108396D AT108396B (en) 1926-05-29 1927-01-08 Method and machine for bending pipes.

Country Status (1)

Country Link
AT (1) AT108396B (en)

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