EP0284773A2 - Dispositif d'élargissement de fins de tubes - Google Patents

Dispositif d'élargissement de fins de tubes Download PDF

Info

Publication number
EP0284773A2
EP0284773A2 EP88102680A EP88102680A EP0284773A2 EP 0284773 A2 EP0284773 A2 EP 0284773A2 EP 88102680 A EP88102680 A EP 88102680A EP 88102680 A EP88102680 A EP 88102680A EP 0284773 A2 EP0284773 A2 EP 0284773A2
Authority
EP
European Patent Office
Prior art keywords
die
expansion sleeve
expansion
tube
cylinder
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.)
Granted
Application number
EP88102680A
Other languages
German (de)
English (en)
Other versions
EP0284773B1 (fr
EP0284773A3 (en
Inventor
Erich Büchele
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0284773A2 publication Critical patent/EP0284773A2/fr
Publication of EP0284773A3 publication Critical patent/EP0284773A3/de
Application granted granted Critical
Publication of EP0284773B1 publication Critical patent/EP0284773B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • 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

Definitions

  • the innovation relates to a device for expanding pipe ends according to the preamble of claim 1.
  • Such a device is described in DE-OS 1 918 815.
  • the wedge-shaped punch is arranged at the end of a piston.
  • a holder is connected, which consists of wedge pieces, which lie against the outer wall of the pipe at a distance from the pipe end.
  • a disadvantage of this known device is that when the punch is pressed into the pipe end, the pipe is axially displaced at least until the wedges of the holder engage. If the friction between the outer tube wall and the wedge pieces is relatively low, for example if the outer tube wall has a layer of grease, then the tube is displaced over the entire path of the piston stroke, so that the punch does not press into the end of the tube.
  • the object is to improve the device in such a way that the tube has a secure hold during expansion and the expansion is carried out in a controlled manner.
  • the pipe end 8 to be expanded is surrounded by a die 1, which is divided into two in the longitudinal direction and has a recess 10 in the region of the end 9 of the pipe.
  • the two-part die 1 is arranged in a die holder 11 which is connected to a frame 12.
  • the recess 10 determines the outer shape of the widening to be provided at the end 9.
  • the frame carries a cylinder 13, which in turn is connected to an expansion sleeve 4.
  • This expansion sleeve 4 is inserted with its head 14 into the tube 8 such that its expansion head 14 comes to rest against the inner wall of the tube 8.
  • the expansion head 14 is located in the area of the die 1 at the level of the area of the die 1, which adjoins the recess 10.
  • expansion mandrel 3 which is conical in the area of the expansion head 14.
  • This expanding mandrel 3 is connected to the piston 15 inside the cylinder 13. If a pressure medium is applied to the left cylinder chamber of the cylinder 13, the expanding mandrel 3 executes a movement to the right, in which the conical wedge of the expanding mandrel 3 spreads the expanding head 14 , which is provided with axially extending slots 16 for this purpose.
  • This expansion head 14 thus comes to rest against the inner wall of the tube 8, which is held in this way between the die 1 and the expansion head 14.
  • the plunger 5 which has an axial bore for this purpose, is displaceably arranged.
  • This stamp 5 is fastened to a guide housing 17, in which the cylinder 13 is slidably arranged.
  • the guide housing 17 has a slot 18 through which the arm 19 of the frame 12 is guided, to which the cylinder 13 is attached.
  • the right cylinder chamber of the cylinder 22 is pressurized with a pressure medium, whereby the piston rod 20 moves the plunger 5 in the direction of the tube end 9 via the guide housing 17.
  • the punch 5 is pressed into the tube end 9 in this way, this being deformed against the surface of the recess 10.
  • the punch 5 has a cylindrical projection 7, the diameter of which is smaller than the inside diameter of the pipe.
  • the die 1, the expansion sleeve 4 and the punch 5 are interchangeable, so that the device can be adapted to different pipe diameters and pipe wall thicknesses.
EP88102680A 1987-02-26 1988-02-24 Dispositif d'élargissement de fins de tubes Expired - Lifetime EP0284773B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8702934U DE8702934U1 (fr) 1987-02-26 1987-02-26
DE8702934U 1987-02-26

Publications (3)

Publication Number Publication Date
EP0284773A2 true EP0284773A2 (fr) 1988-10-05
EP0284773A3 EP0284773A3 (en) 1990-02-28
EP0284773B1 EP0284773B1 (fr) 1991-10-02

Family

ID=6805210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102680A Expired - Lifetime EP0284773B1 (fr) 1987-02-26 1988-02-24 Dispositif d'élargissement de fins de tubes

Country Status (3)

Country Link
EP (1) EP0284773B1 (fr)
DE (2) DE8702934U1 (fr)
ES (1) ES2025714T3 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652015A1 (fr) * 1989-09-15 1991-03-22 Caterpillar Inc Procede et appareil de dilatation de tubes.
DE19704131A1 (de) * 1997-02-04 1998-08-06 Ex Cell O Gmbh Verfahren und Vorrichtung zum Bruchtrennen
WO1999038712A2 (fr) * 1998-01-30 1999-08-05 Farkas Zoltan Procede de production d'un manchon de moyeu de vehicules deux roues, plus particulierement de bicyclettes
GB2377902A (en) * 2001-07-20 2003-01-29 Itt Mfg Enterprises Inc Forming tool
WO2007065955A1 (fr) * 2005-12-09 2007-06-14 Rennsteig Werkzeuge Gmbh Dispositif d'evasement des extremites d'un tube
WO2007129035A1 (fr) * 2006-05-04 2007-11-15 Caldervale Technology Limited Dispositif de preparation d'extremites de canalisations pour un raccordement
EP2957363A1 (fr) * 2014-06-16 2015-12-23 SMS Meer GmbH Expandeur mecanique de tuyaux
RU2633676C1 (ru) * 2016-09-26 2017-10-16 Публичное акционерное общество "Уфимское моторостроительное производственное объединение" Устройство для вальцевания полых деталей
EP3391979A1 (fr) * 2017-04-21 2018-10-24 Eaton Intelligent Power Limited Agencement pour travailler une extrémité de tube
CN110479826A (zh) * 2019-07-26 2019-11-22 中国航发贵州黎阳航空动力有限公司 一种用于航空发动机薄壁机匣密封装置扩口的工装
CN110605338A (zh) * 2019-10-09 2019-12-24 格力电器（重庆）有限公司 一种铜管自动扩缩口装置
US10940521B2 (en) 2017-06-29 2021-03-09 Milwaukee Electric Tool Corporation Swage tool
CN113369394A (zh) * 2021-05-21 2021-09-10 新乡市博威机械有限公司 一种具有高效冷却机构的卧型卧式胀管机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266795A (en) * 1938-04-29 1941-12-23 Arthur L Parker Apparatus for preparing flared end tubes
US2352912A (en) * 1941-03-31 1944-07-04 Parker Appliance Co Tube expanding and flaring machine
US2394841A (en) * 1943-06-16 1946-02-12 Kenly C Bugg Flanging device
US2464510A (en) * 1945-01-10 1949-03-15 Parker Appliance Co Tube flaring machine
US2941568A (en) * 1958-04-21 1960-06-21 Gen Dynamics Corp Tube flaring machine
US3200627A (en) * 1961-12-12 1965-08-17 Baldwin Lima Hamilton Corp Pipe flaring or belling
US3412592A (en) * 1965-10-22 1968-11-26 Olin Mathieson Pipe gripping and flaring apparatus
DE1918815A1 (de) * 1969-04-14 1970-10-15 Guenter Zimmer Vorrichtung zum Kaltverformen von Rohrenden

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266795A (en) * 1938-04-29 1941-12-23 Arthur L Parker Apparatus for preparing flared end tubes
US2352912A (en) * 1941-03-31 1944-07-04 Parker Appliance Co Tube expanding and flaring machine
US2394841A (en) * 1943-06-16 1946-02-12 Kenly C Bugg Flanging device
US2464510A (en) * 1945-01-10 1949-03-15 Parker Appliance Co Tube flaring machine
US2941568A (en) * 1958-04-21 1960-06-21 Gen Dynamics Corp Tube flaring machine
US3200627A (en) * 1961-12-12 1965-08-17 Baldwin Lima Hamilton Corp Pipe flaring or belling
US3412592A (en) * 1965-10-22 1968-11-26 Olin Mathieson Pipe gripping and flaring apparatus
DE1918815A1 (de) * 1969-04-14 1970-10-15 Guenter Zimmer Vorrichtung zum Kaltverformen von Rohrenden

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652015A1 (fr) * 1989-09-15 1991-03-22 Caterpillar Inc Procede et appareil de dilatation de tubes.
DE19704131A1 (de) * 1997-02-04 1998-08-06 Ex Cell O Gmbh Verfahren und Vorrichtung zum Bruchtrennen
DE19704131C2 (de) * 1997-02-04 2003-01-02 Ex Cell O Gmbh Verfahren und Vorrichtung zum Bruchtrennen
WO1999038712A2 (fr) * 1998-01-30 1999-08-05 Farkas Zoltan Procede de production d'un manchon de moyeu de vehicules deux roues, plus particulierement de bicyclettes
WO1999038712A3 (fr) * 1998-01-30 1999-10-28 Zoltan Farkas Procede de production d'un manchon de moyeu de vehicules deux roues, plus particulierement de bicyclettes
GB2377902A (en) * 2001-07-20 2003-01-29 Itt Mfg Enterprises Inc Forming tool
GB2377902B (en) * 2001-07-20 2004-02-11 Itt Mfg Enterprises Inc Forming tool
US6751996B2 (en) 2001-07-20 2004-06-22 Itt Manufacturing Enterprises, Inc. Dynamic punch
WO2007065955A1 (fr) * 2005-12-09 2007-06-14 Rennsteig Werkzeuge Gmbh Dispositif d'evasement des extremites d'un tube
US8057215B2 (en) 2006-05-04 2011-11-15 Caldervale Technology Limited Device for preparing pipe ends for jointing
WO2007129035A1 (fr) * 2006-05-04 2007-11-15 Caldervale Technology Limited Dispositif de preparation d'extremites de canalisations pour un raccordement
EP2957363A1 (fr) * 2014-06-16 2015-12-23 SMS Meer GmbH Expandeur mecanique de tuyaux
RU2633676C1 (ru) * 2016-09-26 2017-10-16 Публичное акционерное общество "Уфимское моторостроительное производственное объединение" Устройство для вальцевания полых деталей
EP3391979A1 (fr) * 2017-04-21 2018-10-24 Eaton Intelligent Power Limited Agencement pour travailler une extrémité de tube
CN108724040A (zh) * 2017-04-21 2018-11-02 伊顿智能动力有限公司 用于加工管端部的装置
US10814458B2 (en) 2017-04-21 2020-10-27 Eaton Intelligent Power Limited Arrangement for working a tube end
CN108724040B (zh) * 2017-04-21 2024-03-22 丹佛斯动力系统Ii技术有限公司 用于加工管端部的装置
US10940521B2 (en) 2017-06-29 2021-03-09 Milwaukee Electric Tool Corporation Swage tool
US11717876B2 (en) 2017-06-29 2023-08-08 Milwaukee Electric Tool Corporation Swage tool
CN110479826A (zh) * 2019-07-26 2019-11-22 中国航发贵州黎阳航空动力有限公司 一种用于航空发动机薄壁机匣密封装置扩口的工装
CN110605338A (zh) * 2019-10-09 2019-12-24 格力电器（重庆）有限公司 一种铜管自动扩缩口装置
CN113369394A (zh) * 2021-05-21 2021-09-10 新乡市博威机械有限公司 一种具有高效冷却机构的卧型卧式胀管机

Also Published As

Publication number Publication date
DE8702934U1 (fr) 1987-04-09
ES2025714T3 (es) 1992-04-01
EP0284773B1 (fr) 1991-10-02
DE3865223D1 (de) 1991-11-07
EP0284773A3 (en) 1990-02-28

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