DK0619152T3 - Expansion head for hollow workpiece expansion tool - Google Patents
Expansion head for hollow workpiece expansion toolInfo
- Publication number
- DK0619152T3 DK0619152T3 DK93105591.7T DK93105591T DK0619152T3 DK 0619152 T3 DK0619152 T3 DK 0619152T3 DK 93105591 T DK93105591 T DK 93105591T DK 0619152 T3 DK0619152 T3 DK 0619152T3
- Authority
- DK
- Denmark
- Prior art keywords
- flange
- sectors
- expansion
- guide
- internal
- Prior art date
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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Earth Drilling (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
On an expansion head (1) for expander tools for hollow workpieces, a cup (2) with a guide flange (3) pointing radially inwards and with a set of expansion jaws (4) in the form of sectors, each of which is guided individually so as to be radially moveable on the guide flange (3) by means of an internal-flange sector (5) and of an external-flange sector (6) and of a radial groove (7) formed between these. In order to be able to increase the radial travel of the expansion jaws without loss of the guiding properties, the external-flange sectors (6) have essentially at least the same diameter as the internal-flange sectors (5) and both the internal-flange sectors (5) and the external-flange sectors (6) each have a hole (8 and 9 respectively), in each of which one end of a guide pin (10) is accommodated. Arranged in the guide flange (3) are radial guide grooves for the acceptance and movement of in each case one of the guide pins (10). Annular tension springs (15, 16) for resetting the expansion jaws are furthermore arranged both on the internal-flange sectors (5) and on the external-flange sectors (6). <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4202348A DE4202348C1 (en) | 1992-01-29 | 1992-01-29 | Tube end expansion tool - has holding drillings for guide pins at inner and outer flange sectors |
EP93105591A EP0619152B1 (en) | 1992-01-29 | 1993-04-05 | Expansion head for expander for hollow workpieces |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0619152T3 true DK0619152T3 (en) | 1998-04-06 |
Family
ID=25911322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK93105591.7T DK0619152T3 (en) | 1992-01-29 | 1993-04-05 | Expansion head for hollow workpiece expansion tool |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0619152B1 (en) |
AT (1) | ATE156732T1 (en) |
DE (1) | DE4202348C1 (en) |
DK (1) | DK0619152T3 (en) |
ES (1) | ES2106912T3 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4339993C1 (en) * | 1993-11-24 | 1995-01-05 | Rothenberger Werkzeuge Masch | Apparatus for expanding hollow bodies |
DE4446506A1 (en) * | 1994-12-25 | 1996-06-27 | Rothenberger Werkzeuge Masch | Device for expanding hollow bodies |
DE19730054C1 (en) * | 1997-07-14 | 1999-03-18 | Eckhard Wolter | Expansion head with housing for screwing onto expander tongs |
DE19924695C2 (en) * | 1999-05-28 | 2001-05-10 | Rothenberger Werkzeuge Ag | Expansion tool for hollow bodies and process for the production thereof |
DE19963885C1 (en) * | 1999-12-30 | 2001-05-03 | Rehau Ag & Co | Expansion of flexible plastic pipe end, to enable fittings to be mounted, has spreader with internal sliding cone to fix the pipe to be drawn over expansion mandrel to increase its diameter |
DE102007007294B3 (en) | 2007-02-14 | 2008-07-10 | Rothenberger Ag | Drive unit with coupling for tool heads has housing with chamber for accumulators in end remote from coupling with total voltage of at least 12 Volts; chamber covered by removable cap has hydraulic pump with piston with transverse axis |
DE202010004948U1 (en) | 2010-04-13 | 2011-09-01 | Rehau Ag + Co. | Expander head for hollow workpieces with guided segments |
DE102010035222B4 (en) * | 2010-08-24 | 2013-04-18 | Rothenberger Ag | Coupling for the axial connection of a drive unit with an expander head |
EP2608935B1 (en) | 2010-08-24 | 2018-02-28 | Rothenberger AG | Coupling parts for connecting a driving device to an expander head |
DE102010035221B4 (en) * | 2010-08-24 | 2013-04-18 | Rothenberger Ag | Coupling for the axial connection of a drive unit with expander head |
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 |
CN110773651A (en) * | 2019-11-05 | 2020-02-11 | 武汉威研工程技术有限公司 | Portable self-centering reamer |
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 (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB866994A (en) * | 1957-11-13 | 1961-05-03 | Wlodimierz Rast | Improvements in or relating to an expanding tool for pipes |
US3550424A (en) * | 1968-06-12 | 1970-12-29 | Wlodzimierz Rast | Tube expander |
AU8441475A (en) * | 1974-09-13 | 1977-03-03 | Ridge Tool Co. | Jaw construction for expanding tools |
DE2459506B2 (en) * | 1974-09-13 | 1976-07-22 | Rast Patent Manufacturers Pty. Ltd., North Plympton, Südaustralien (Australien) | JAW ARRANGEMENT FOR EXPANSION TOOLS |
FR2486834A1 (en) * | 1980-07-18 | 1982-01-22 | Unicum Sa | EXPANSION HEAD FOR AN APPARATUS FOR EXHAUSTING OR EXTENDING TUBES OR THE LIKE |
DE4104205C1 (en) * | 1991-02-12 | 1992-10-08 | Rothenberger Werkzeuge-Maschinen Gmbh, 6233 Kelkheim, De |
-
1992
- 1992-01-29 DE DE4202348A patent/DE4202348C1/en not_active Expired - Lifetime
-
1993
- 1993-04-05 ES ES93105591T patent/ES2106912T3/en not_active Expired - Lifetime
- 1993-04-05 DK DK93105591.7T patent/DK0619152T3/en active
- 1993-04-05 EP EP93105591A patent/EP0619152B1/en not_active Expired - Lifetime
- 1993-04-05 AT AT93105591T patent/ATE156732T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE4202348C1 (en) | 1993-06-09 |
EP0619152B1 (en) | 1997-08-13 |
ES2106912T3 (en) | 1997-11-16 |
ATE156732T1 (en) | 1997-08-15 |
EP0619152A1 (en) | 1994-10-12 |
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