DE44795T1 - EXPANSION HEAD FOR EXPANDING PIPE ENDS. - Google Patents

EXPANSION HEAD FOR EXPANDING PIPE ENDS.

Info

Publication number
DE44795T1
DE44795T1 DE198181420105T DE81420105T DE44795T1 DE 44795 T1 DE44795 T1 DE 44795T1 DE 198181420105 T DE198181420105 T DE 198181420105T DE 81420105 T DE81420105 T DE 81420105T DE 44795 T1 DE44795 T1 DE 44795T1
Authority
DE
Germany
Prior art keywords
jaws
expansion head
sleeve
head
expansion
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.)
Pending
Application number
DE198181420105T
Other languages
German (de)
Inventor
Daniel F-42100 Saint.Etienne Filliat
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.)
Unicum Sa 75008 Paris Fr
Original Assignee
Unicum Sa 75008 Paris Fr
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 Unicum Sa 75008 Paris Fr filed Critical Unicum Sa 75008 Paris Fr
Publication of DE44795T1 publication Critical patent/DE44795T1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Earth Drilling (AREA)
  • Paper (AREA)
  • Endoscopes (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Coating With Molten Metal (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Ceramic Products (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Lubricants (AREA)
  • Pipe Accessories (AREA)
  • Joints Allowing Movement (AREA)

Abstract

1. Expansion head for an apparatus for flaring up or widening the ends of tubes, comprising essentially a body (1) with shifting means (2-2**1 ) for a chuck (3) the tapering end (3**1 ) of which is acting urgingly within the corresponding bore (5**3 ) of a plurality of independent concentric jaws (5) in the form of sectors interconnected by a retaining elastic means (O) positioned within a circular groove (5**4 ) established underneath the common colla (5**5 ) for each one of the aforesaid jaws (5) in order to constitute the expansion head proper, the collar (5**5 ) of which is abutted within the shouldered bore (4**3 ) of a socket (4) secured at the end of the body (1), characterized in that all the retaining means (O and A) of the jaws (5) are disposed underneath their common collar (5**5 ) to permit an extensive range of dimensions of the jaws (5) with the same socket (4), the elastic but collapsible means (A) of said jaws (5) relative to the bottom of said socket (4) being centered and positioned within a groove (5**7 ) of the aforesaid jaws (5) while protruding alternately from the external diameter of the expansion head (T) for retaining same axially and vertically in combination on the one hand with the lower face (4**4 ) of the socket (4) and on the other hand with the opposite collar (5**5 ) abutted on the inside shouldering (4**3 ) of said socket (4).

Claims (6)

OG U795Floor U795 1. Expansionskopf für ein Gerät zum Ausweiten oder Erweitern von Rohrenden, der in der Hauptsache ein Gehäuse (1) mit Verschiebungsmitteln (2 - 2 Ϊ für einen Dorn (3) aufweist, dessen Kegelende (3 ) in der entsprechenden Bohrung (5 ) einer Vielzahl von konzentrischen, durch ein Federmittel (0) verbundenen sek torf örrni^ en unabhängigen Backen (5) schubwirkend arbeitet, um den Expansions'copf (T) mit Abstützungsbund (5 ) in der Ansatzbohrung (4^) einer am Ende des Gehäuses (l) des Geräts befestigten Hülse (4) zu bilden, dadurch gekennzeichnet, dass der genannte Expansionskopf zum Halten der Backen ein in einer unterhalb des gemeinsamen uunds (5 ) der verschiedenen Backen (5) vorgesehenen kreisförmigen Rille (5 ) eingerichtetes Pedermittel (o) aufweist, damit eine weitgehende Backenabmessungsreihe mit derselben Hülse ermöglicht wird, wobei der genannte Kopf ein elastisches Haltemittel (a) darüber hinaus aufweist, welches in be^ug auf den Boden der Hülse (4) zusammenklappbar ist und die Expansions- oder Zusammenziehensbewegungen des Kopfs durch Wirkung des üorns (3) einerseits, dip Abnahme des Kopfs andererseits gestattet.1. Expansion head for a device for expanding or expanding pipe ends, which mainly has a housing (1) with displacement means (2 - 2 Ϊ for a mandrel (3), the cone end (3) in the corresponding bore (5) a A large number of concentric, sec torf örrni ^ en independent jaws (5) connected by a spring means (0) work in a thrust-acting manner to the expansion head (T) with support collar (5) in the attachment hole (4 ^) one at the end of the housing ( l) to form a sleeve (4) attached to the device, characterized in that the said expansion head for holding the jaws is a pedestal means (o) arranged in a circular groove (5) provided below the common and (5) of the various jaws (5). so that a wide range of jaw dimensions is made possible with the same sleeve, said head also having an elastic holding means (a) which can be folded up in relation to the bottom of the sleeve (4) and which Expansion or contraction movements of the head by the action of üorns (3) on the one hand, dip decrease of the head on the other hand allowed. 2. Expansionskopf gemäss Anspruch 1, dadurch gekennzeichnet, dass das Haltemittel (o) der Backen (5) eine ringförmige Offenfeder (6) mit am wenigstens eine Abstützungsnlanflache (6 ) ist, die mit dem entsprechenden Boden (5 ) der Rille (5 ) zum Erreichen einer Abstützung gemäss einer eine Unterlagefläche bildenden Umfangsoberfläche für das Selbstzentrieren und die standfeste Höheneinstellung der genannten Backen (5) zusammenarbeitet, wobei Gleichgewichtsstörungen letzterer in jeder Richtung, insbesondere bei dem Zusammenbau, vermieden werden.2. Expansion head according to claim 1, characterized in that that the holding means (o) of the jaws (5) have an annular open spring (6) with at least one support surface (6) is that with the corresponding bottom (5) of the groove (5) to achieve a support according to a circumferential surface that forms a support surface for self-centering and stable Height adjustment of said jaws (5) cooperates, with imbalances in the latter in each Direction, especially during assembly, can be avoided. 3. Expansions kopf gemäss Anspruch 1, dadurch gekennzeichnet, dass das in bezug auf die Hülse (4^ zusammenklappbare elastische Haltemittel (a) der Backen (5) gebildet und entsprechend profiliert ist, damit er sich einerseits in eine für die genannten Backen (5) gemeinsame Rille (5 ) zentrieren und einrichten und andex-erseits aus dem Kopfaussendurchrnesser wechselseitig hinausragen kann, wobei das achsrechte Halten des Kopfs in der Höhe, in Verbindung mit der unteren fläche (4 ) der Hülse (4) und dem auf den Ansatz (4 ) der Hülse (4) abgestützten Bund (5 ), bewirkt wird.3. Expansion head according to claim 1, characterized in that that the collapsible with respect to the sleeve (4 ^ elastic holding means (a) of the jaws (5) is formed and profiled accordingly so that it is on the one hand in a Center and set up a common groove (5) for the mentioned jaws (5) and on the andex side from the outside diameter of the head can protrude alternately, keeping the head in the vertical axis in connection with the lower surface (4) of the sleeve (4) and the collar (5) supported on the shoulder (4) of the sleeve (4). 4. Expansionskopf geraäss Anspruch 1 und 3, dadurch gekennzeichnet, dass das in bezug auf die Hülse (4^ zusammenklappbare elastische Haltemittel (a) der Bacven (5) eine fünfeckförmige Cffennadelfeder (7) ist, derer Seiten (7 ) in der Rille (5 ) zentriert und eingerichtet sind, wobei die vorspringenden Scheitelpunkte (7^) dieser Feder zum Anliegen auf die untere Fläche (4 ) der genannten Hülse (4) aus dem Aussendurchmesser der Hülse hinausragen.4. expansion head geraäss claim 1 and 3, characterized in that the with respect to the sleeve (4 ^ collapsible elastic holding means (a) of the Bac v en (5) is a pentagonal Cffennadelfeder (7), the sides (7) in the Groove (5) are centered and arranged, the projecting vertices (7 ^) of this spring protruding from the outer diameter of the sleeve to rest on the lower surface (4) of said sleeve (4). 5. Expansionskopf gemäss Anspruch 1 und 2, dadurch gekennzeichnet, dass die Feder (6) bei (6 ) offen ist, um insbesondere die Einführung einer für das Auseinanderspreizen der genannten Feder weg von dem Satz der Backen (5) geeigneten Zange zwecks Montieren und Abnahme zu ermöglichen. 5. Expansion head according to claim 1 and 2, characterized in that that the spring (6) at (6) is open, in particular to introduce a for spreading it apart the said spring away from the set of jaws (5) to allow suitable pliers for assembly and disassembly. 6. Expansionskopf gemäss Anspruch 1 und 2, dadurch gekennzeichnet, dass der Boden der Rille (5 ) flach und zu den Erzeugenden des Gehäuses des genannten Eypansionskopfs gleichlaufend ist.6. Expansion head according to claim 1 and 2, characterized in that that the bottom of the groove (5) is flat and towards the generatrix of the housing of said expansion head is concurrent.
DE198181420105T 1980-07-18 1981-07-16 EXPANSION HEAD FOR EXPANDING PIPE ENDS. Pending DE44795T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8016173A FR2486834A1 (en) 1980-07-18 1980-07-18 EXPANSION HEAD FOR AN APPARATUS FOR EXHAUSTING OR EXTENDING TUBES OR THE LIKE

Publications (1)

Publication Number Publication Date
DE44795T1 true DE44795T1 (en) 1983-08-04

Family

ID=9244417

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198181420105T Pending DE44795T1 (en) 1980-07-18 1981-07-16 EXPANSION HEAD FOR EXPANDING PIPE ENDS.
DE8181420105T Expired DE3168139D1 (en) 1980-07-18 1981-07-16 Sizing tool for expanding tube ends

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8181420105T Expired DE3168139D1 (en) 1980-07-18 1981-07-16 Sizing tool for expanding tube ends

Country Status (10)

Country Link
EP (1) EP0044795B1 (en)
AT (1) ATE11115T1 (en)
BE (1) BE889656A (en)
CH (1) CH641383A5 (en)
DE (2) DE44795T1 (en)
DK (1) DK309481A (en)
FI (1) FI812242L (en)
FR (1) FR2486834A1 (en)
IT (1) IT1138063B (en)
NO (1) NO153720C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4615198A (en) * 1985-06-26 1986-10-07 Westinghouse Electric Corp. Apparatus and method for reforming and rolling tube ends
DE4202348C1 (en) * 1992-01-29 1993-06-09 Rothenberger Werkzeuge-Maschinen Gmbh, 6233 Kelkheim, De Tube end expansion tool - has holding drillings for guide pins at inner and outer flange sectors
CH699306A1 (en) * 2008-08-13 2010-02-15 Finemon Ag Flaring tool for pipes and pipe pressing clutch.
DE202010004948U1 (en) 2010-04-13 2011-09-01 Rehau Ag + Co. Expander head for hollow workpieces with guided segments
DE102012100894A1 (en) 2012-02-03 2013-08-08 Rehau Ag + Co Expander head for expander tools, this comprehensive expansion tool and their use
DE202012104450U1 (en) 2012-11-19 2014-02-25 Rehau Ag + Co Expansion head for expansion tools and this comprehensive expansion tool
CN106584877B (en) * 2016-12-09 2023-05-30 重庆寅悦恒工贸有限公司 Pipe fitting centering mechanism for vehicle
DE202019107067U1 (en) * 2019-12-18 2021-03-19 Rehau Ag + Co Expansion head for expansion tools as well as this comprehensive expansion tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1291839A (en) * 1969-07-18 1972-10-04 Dale Ltd John A taper-expanding mandrel
US3888102A (en) * 1972-10-10 1975-06-10 Salvatore A Nigido Swedger apparatus
DE2505915A1 (en) * 1975-02-13 1976-08-26 Rothenberger Schweisstech DEVICE FOR EXPANSION OF PIPE ENDS
DE2552607C2 (en) * 1975-11-24 1985-08-01 Rothenberger GmbH & Co Werkzeuge-Maschinen KG, 6000 Frankfurt Hand tool for expanding pipe ends
DE2654102C2 (en) * 1976-11-29 1984-01-05 Rothenberger GmbH & Co Werkzeuge-Maschinen KG, 6000 Frankfurt Expansion head for pipe expanding devices with exchangeable expansion jaws

Also Published As

Publication number Publication date
DK309481A (en) 1982-01-19
EP0044795A2 (en) 1982-01-27
NO153720B (en) 1986-02-03
EP0044795B1 (en) 1985-01-09
NO812413L (en) 1982-01-19
FR2486834A1 (en) 1982-01-22
BE889656A (en) 1981-11-16
DE3168139D1 (en) 1985-02-21
IT8122943A0 (en) 1981-07-15
FI812242L (en) 1982-01-19
FR2486834B1 (en) 1985-04-05
ATE11115T1 (en) 1985-01-15
NO153720C (en) 1986-05-14
CH641383A5 (en) 1984-02-29
IT1138063B (en) 1986-09-10
EP0044795A3 (en) 1982-05-12

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