DE3021481C2 - Method and device for the production of pipes - Google Patents
Method and device for the production of pipesInfo
- Publication number
- DE3021481C2 DE3021481C2 DE19803021481 DE3021481A DE3021481C2 DE 3021481 C2 DE3021481 C2 DE 3021481C2 DE 19803021481 DE19803021481 DE 19803021481 DE 3021481 A DE3021481 A DE 3021481A DE 3021481 C2 DE3021481 C2 DE 3021481C2
- Authority
- DE
- Germany
- Prior art keywords
- diameter
- plug
- sections
- corresponds
- pulling
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture 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
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/16—Making tubes with varying diameter in longitudinal direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
Die Erfindung betrifft ein Verfahren zur kontinuierlichen Herstellung von Rohren mit örtlichen, am Umfang vorgesehenen Wandverdickungen und gleichmäßigem Innendurchmesser durch Ziehen gemäß dem Oberbegriff des Patentanspruchs 1 sowie eine Ziehvorrichtung gemäß dem Oberbegriff des Patentanspruchs 2.The invention relates to a method for the continuous production of pipes with local, circumferential provided wall thickenings and uniform inside diameter by pulling according to the generic term of claim 1 and a pulling device according to the preamble of claim 2.
Aus der US-PS 22 28 301 sind ein Verfahren und eine Ziehvorrichtung gemäß den Oberbegriffen bekannt.From US-PS 22 28 301 a method and a pulling device according to the preambles are known.
Die Erzeugung der am Umfang vorgesehenen Wandverdickungen erfolgt dabei durch die Verschiebung der mit den Absätzen versehenen Innenabstützung frei nach außen, so daß eine Beeinflussung der Verdrängung mit dem Ziel der exakten Reproduzierbarkeit des Außendurchmessers nicht gegeben ist.The wall thickenings provided on the circumference are generated by the displacement the internal support provided with the paragraphs freely to the outside, so that an influence on the Displacement with the aim of exact reproducibility of the outer diameter is not given.
Aufgabe der Erfindung ist es daher, das Verfahren und die Vorrichtung der eingangs genannten Art so auszubilden, daß die Wandverdickungen genaue, von Unebenheiten freie, Außendurchmesser aufweisen.The object of the invention is therefore to provide the method and the device of the type mentioned at the beginning to train that the wall thickenings have precise, unevenness-free, outer diameter.
Gelöst wird diese Aufgabe erfindungsgemäß durch die im Kennzeichen des Patentanspruchs 1 angegebene Begrenzung der Vergrößerung des Außendurchmessers durch eine zweite Außenabstützung.This object is achieved according to the invention by what is specified in the characterizing part of claim 1 Limitation of the enlargement of the outer diameter by a second outer support.
Die Ausbildung der Vorrichtung und Ausgestaltungen ergeben sich aus den Patentansprüchen 2 bis 4.The design of the device and designs emerge from claims 2 to 4.
Wie der durch die Erfindung erreichte genau definierte Außendurchmesser der Wandverdickungen erhalten wird, soll nachfolgend anhand von Figuren beschrieben werden, wobei als Ausgangsmaterial nahtlose und geschweißte Rohrluppen Verwendung finden können. Es zeigtLike the precisely defined outer diameter of the wall thickenings achieved by the invention is obtained, is to be described below with reference to figures, with the starting material seamless and welded tube blanks can be used. It shows
F i g. 1 den Beginn des Ziehvorganges,F i g. 1 the beginning of the drawing process,
F i g. 2 das Ziehteil einer Vorrichtung mit in vorgeschobener Stellung befindlichem Ziehdorn.F i g. 2 the drawing part of a device with the drawing mandrel in the advanced position.
In diesen Zeichnungen ist das Rohr 1 mit unterschiedlichen Wanddicken dargestellt, die mit Hilfe der mit abgesetzten Zieholen 7 und 8, welche einen unterschiedlichen Durchmesser aufweisen, ausgestatteten Ziehring und eine mit mehreren Stopfen 3, 4 und 5 versehene Dornstange hergestellt worden sind.In these drawings, the tube 1 is shown with different wall thicknesses, which with the help of remote drawing holes 7 and 8, which have a different diameter, equipped drawing ring and a mandrel bar provided with a plurality of plugs 3, 4 and 5 have been manufactured.
Bei Beginn des Ziehens wird zunächst der Rohranfang mit Hilfe des Stopfens 4 im Ziehhol 7 ein Rohrteil mit definierter Innen- und Außenwand gezogen. Zur Erzielung der Wandverdickungen wird die Dornstange so weit in Ziehrichtung vorgeschoben, daß eine nach innen gerichtete definierte Wandverdickung zwischen Stopfen 5 und Ziehhol 7 entsteht. Im weiteren Verlauf des Ziehens wird die nach innen gerichtete Wandverdikkung durch den als Umkehrdorn wirkenden Stopfen 4 nach außen bis an das Ziehhol 8 gedrückt. Hierdurch entsteht sowohl die gewünschte in den Abmaßen definierte Außenverdickung und ein gleichmäßiger Innendurchmesser. Durch gesteuertes Hin- und Herbewegen der Stopfenstange 6 können Länge und Abstand der verdickten Wandteile bestimmt werden.At the beginning of the pulling, the beginning of the pipe is first a pipe part with the help of the plug 4 in the pulling hole 7 drawn with defined inner and outer wall. To achieve the wall thickening, the mandrel bar so far advanced in the drawing direction that an inwardly directed wall thickening between Stopper 5 and draw hole 7 is created. In the further course of the drawing, the inward-facing wall thickening becomes pressed outwardly as far as the drawbar 8 by the stopper 4 acting as a reversing mandrel. Through this Both the desired external thickening, defined in terms of its dimensions, and a more uniform one are created Inside diameter. By moving the stopper rod 6 back and forth in a controlled manner, length and distance the thickened wall parts are determined.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803021481 DE3021481C2 (en) | 1980-06-05 | 1980-06-05 | Method and device for the production of pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803021481 DE3021481C2 (en) | 1980-06-05 | 1980-06-05 | Method and device for the production of pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3021481A1 DE3021481A1 (en) | 1981-12-10 |
DE3021481C2 true DE3021481C2 (en) | 1983-04-21 |
Family
ID=6104097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803021481 Expired DE3021481C2 (en) | 1980-06-05 | 1980-06-05 | Method and device for the production of pipes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3021481C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0104055A2 (en) * | 1982-09-16 | 1984-03-28 | Kabushiki Kaisha Kobe Seiko Sho | Method & apparatus for producing stepped tubes |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58138525A (en) * | 1982-02-15 | 1983-08-17 | Isao Kimura | Method for manufacturing one body system front fork material from central butted blank pipe |
US4606212A (en) * | 1984-04-16 | 1986-08-19 | Sanwa Kokan Co., Ltd. | Device for cold drawing seamless metal tubes having upset portions on both ends |
US5119662A (en) * | 1984-04-16 | 1992-06-09 | Sanwa Kokan Co., Ltd. | Methods for cold drawing seamless metal tubes each having an upset portion on each end |
EP0760265A1 (en) * | 1995-08-26 | 1997-03-05 | Benteler Ag | Tube and its application in the manufacturing of components of vehicle axles and vehicle axle with such a tube |
DE102019103926A1 (en) | 2019-02-15 | 2020-08-20 | Walter Henrich GmbH | Method and device for the axial forming of a pipe |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1967487A (en) * | 1930-03-20 | 1934-07-24 | Mechanics Universal Joint Comp | Method and apparatus for making propeller shafts |
DE627064C (en) * | 1934-04-24 | 1936-03-09 | Fritz Singer Dr | Process for the production of pipes with ring-shaped reinforcements |
GB444834A (en) * | 1934-12-19 | 1936-03-30 | William Sadler | Improvements relating to cycle handlebar tubes |
US2228301A (en) * | 1939-08-22 | 1941-01-14 | Phelps Dodge Copper Prod | Tube drawing method and apparatus |
-
1980
- 1980-06-05 DE DE19803021481 patent/DE3021481C2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0104055A2 (en) * | 1982-09-16 | 1984-03-28 | Kabushiki Kaisha Kobe Seiko Sho | Method & apparatus for producing stepped tubes |
EP0104055A3 (en) * | 1982-09-16 | 1986-03-26 | Kabushiki Kaisha Kobe Seiko Sho | Method & apparatus for producing stepped tubes |
Also Published As
Publication number | Publication date |
---|---|
DE3021481A1 (en) | 1981-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69312807T2 (en) | Method and device for manufacturing a tubular rack | |
EP0048003A1 (en) | Non-disconnectible pipe joint | |
DE1804673C3 (en) | Method for producing a hollow motor vehicle axle | |
DE2708898C3 (en) | Method and device for connecting plastic pipes by welding | |
DE2232479A1 (en) | METHOD AND DEVICE FOR MOLDING SOCKETS | |
DE10047231C1 (en) | Method and device for producing a tube with partially different wall thicknesses | |
DE2538106C2 (en) | METHOD AND DEVICE FOR FORMING A SLEEVE ON A PIPE END AND SLEEVE PIPE PRODUCED BY THIS METHOD | |
DE19915383B4 (en) | Hydroforming | |
DE3021481C2 (en) | Method and device for the production of pipes | |
DE3705426C2 (en) | Method of making a one-piece valve sleeve blank | |
DE2624872C3 (en) | Process for producing undivided rims | |
CH619624A5 (en) | ||
DE3016135C2 (en) | Pulling device | |
EP0014474B1 (en) | Method for the production of a tube | |
DE3619322C2 (en) | ||
DE4032424C2 (en) | Method and device for producing folded pipes | |
DE2548853C3 (en) | Device for the production of metal ring blanks | |
DE20314146U1 (en) | Weight-optimized pneumatic tire rim and device for its manufacture | |
DE4322902B4 (en) | Apparatus for producing corrugated pipes | |
DE3124957C2 (en) | ||
DE19851492A1 (en) | Process for producing a component by means of hydroforming | |
DE69415920T2 (en) | Method and mold for making an expansion such as a sleeve, in a tube and a plastic tube | |
DE2447420A1 (en) | TUBE BLANK SUITABLE FOR THE FORMATION OF A TUBE ROD, THE PROCESS FOR ITS PRODUCTION AND TUBE ROD FORMED FROM IT | |
EP0615794B1 (en) | Method to produce a plug chamber for cascade drawing of tubes and device for carrying out the method | |
DE2806368C3 (en) | Process and drawing arrangement for cold drawing of tubes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |