EP0417674B1 - Outil évaseur pour pièces à usiner creuses - Google Patents

Outil évaseur pour pièces à usiner creuses Download PDF

Info

Publication number
EP0417674B1
EP0417674B1 EP90117329A EP90117329A EP0417674B1 EP 0417674 B1 EP0417674 B1 EP 0417674B1 EP 90117329 A EP90117329 A EP 90117329A EP 90117329 A EP90117329 A EP 90117329A EP 0417674 B1 EP0417674 B1 EP 0417674B1
Authority
EP
European Patent Office
Prior art keywords
expanding mandrel
expanding
roller
hand lever
control body
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 - Lifetime
Application number
EP90117329A
Other languages
German (de)
English (en)
Other versions
EP0417674A1 (fr
Inventor
Karl-Heinz Velte
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.)
Rothenberger Werkzeugemaschinen GmbH
Original Assignee
Rothenberger Werkzeugemaschinen GmbH
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
Priority claimed from DE19893930710 external-priority patent/DE3930710A1/de
Priority claimed from DE4017404A external-priority patent/DE4017404C1/de
Application filed by Rothenberger Werkzeugemaschinen GmbH filed Critical Rothenberger Werkzeugemaschinen GmbH
Priority to AT90117329T priority Critical patent/ATE97840T1/de
Publication of EP0417674A1 publication Critical patent/EP0417674A1/fr
Application granted granted Critical
Publication of EP0417674B1 publication Critical patent/EP0417674B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to an expanding tool for hollow, in particular hollow cylindrical workpieces according to the preamble of patent claim 1.
  • Expanding tools of this type are also referred to as “expanders”. They are operated like tongs, i.e. the pivotable hand lever is assigned a second hand lever of the same length, which is rigidly connected to the base body. Expanders are preferably used to widen pipe ends to such an extent that a second, unexpanded pipe end can be inserted into the expanded area and soldered to the first pipe end. It is used both on construction sites and in workshops.
  • the actuating forces are determined by the gear ratios in the drive system of the expanding mandrel, by friction between all moving parts and - last but not least - by the flow behavior of the material of the workpieces to be expanded certainly.
  • the swivel angle of the two hand levers relative to one another is somewhat more than 90 degrees. Since the actual power stroke starts relatively early, the two hand levers have a relatively unfavorable position to each other at the beginning of the power stroke. Since the base body can generally not be supported anywhere, the effective actuating forces can only ever run parallel to the axis of the expanding mandrel; all other reaction forces must also be absorbed by the operator.
  • an eccentrically mounted cam acts directly on the bevelled back of the expanding mandrel. This creates tangential force components in relation to the cam curve, radial force components in relation to the expanding mandrel, which press the expanding mandrel against its bearing and thereby also produce increasing stiffness with increasing deformation forces of the workpiece.
  • the expanding mandrel is, so to speak, the brake shoe for the cam, so that the actuating forces increase progressively as it expands.
  • Another disadvantage of this drive system is that the expanding mandrel cannot be withdrawn.
  • a drive system is known from EP-A-0 252 868 in which low drive forces are paired with a forced retraction of the expanding mandrel. This is done in that a toggle lever is arranged between a hand lever, which has no cam, and the expanding mandrel.
  • the disadvantage of the inclined position of the toggle lever at the beginning of the working stroke compared to the expander according to US Pat. No. 4,425,783 is that shear force components act on the expanding mandrel, which increase the friction between the expanding mandrel and its mounting (bore), and on the other hand
  • a toggle lever drive has the peculiarity that the output forces generated by it go to infinity when the extended position of all joints of the toggle lever system is reached when the driven parts strike a stop.
  • GB-A-2 098 529 discloses a device of a different type, namely a flanging device, in which a rigid punch is pressed into the pipe for the spherical or conical expansion of a pipe end. Because of the high axial forces that occur, the device has a kind of clamp for the pipe, which must be operated by a first hand lever and kept closed during the flanging. A second hand lever acts on a backdrop through which the stamp can be moved in both directions. However, a flaring process only requires a relatively small stroke, and an axial insertion of a second tube is not possible.
  • Both hand levers require different forces, have to be pivoted at different times and in two mutually perpendicular planes, so that the device cannot be operated like a pair of pliers: Instead, it has to be clamped into a vice by means of a cuboid housing extension and is therefore a stationary one Device.
  • the invention has for its object to provide an expansion tool of the type described above, i.e. one with a control body in the drive system, in which frictional forces in the system are reduced to a minimum, the mandrel is forced to retract, the actuating forces are largely constant over the entire working stroke remain so that the operator has a "feeling" for the proper course of the expansion process and in which an overload cannot occur even with an unfavorable tolerance.
  • the roll is always ready for use and, unlike the expander according to US-A-4 425 783, it does not lose its effectiveness even if the expansion stroke is interrupted.
  • a roller also does not require a return spring.
  • the retraction device for the forced retraction of the expanding mandrel can be easily integrated into the drive system.
  • the retraction device prevents rotation of the expanding mandrel relative to the cam in the simplest way, without this requiring a special guidance of the expanding mandrel in the tool base body.
  • the control body which can be produced as a stamped part from a steel plate or in one piece with the hand lever as a forged part and only requires minor finishing on the surfaces of the slot, is also an additional guide element of the expanding mandrel and also secures it against rotation.
  • the ends of the arcuate slot form stops for limiting the pivoting angle of the pivotable hand lever, so that the arc angle of the slot is limited in a defined manner. This achieves two things: Firstly, one stop limits the approach of the hand levers to a minimum distance that prevents pinching, and secondly, the actuating force of the hand levers is defined at the end of the expansion process.
  • the size, the weight and the torsional rigidity of the movable hand lever relative to the tool base body if the control body forms one end of the pivotable hand lever and has an eye for the passage of a pivot pin which penetrates a gap in the base body and is mounted in this laterally outside the expanding mandrel on the side opposite the hand levers on both sides of the gap in the base body.
  • control body is designed as a plate-shaped component and is inserted into a parallel-walled slot in the movable hand lever. This allows, for example, a construction in which the tool body and the two hand levers are made of a light metal alloy, but the control body is made of steel.
  • a particularly long-lasting design is created in a widening tool in which the basic tool body has, in a manner known per se, a thread which is concentric with the expanding mandrel and onto which the set of expanding jaws can be screwed by means of a threaded sleeve if the thread is arranged on the outer surface of an attachment part , which by means of a hollow cylindrical extension with the tool body is connected, and if the continuous bore of the extension and extension is the axial guide for the expanding mandrel.
  • an expanding tool 101 is shown, the tool body 102 made of steel with a first, rigidly attached, also made of steel hand lever 103, a bore 104, and an axially displaceably mounted therein, from the bore with a outer tapered end 105a has protruding expanding mandrel 105.
  • a freely rotatable roller 107 is mounted by means of a cylindrical roller axis 106, the axis of rotation of which is perpendicular to the mandrel axis.
  • the tool body 102 has a guide part 102a, in which the expanding mandrel is mounted and which is shaped approximately as a cuboid with rounded corners and edges.
  • the expanding mandrel 105 protrudes with the roller 107 upward out of the guide part 102a.
  • the guide part 102a and the transition piece 102b have a broken line, shown open at the top gap-shaped recess 102c into which the control body 109 described in more detail below can dip (FIG. 1).
  • the pivotable control body 109 acting on the roller 107 is mounted by means of a pivot pin 108, which is connected in one piece to a second, pivotable hand lever 110, which likewise has a T-shaped cross section, the flange 110b being located at the top this time.
  • Control body 109 and web 110c have the same thickness.
  • the expanding mandrel 105 can be moved clockwise into the position according to FIG. 1 by a predetermined stroke out of the base body against a set of radially movable jaws 111 in a threaded sleeve 112 that can be connected to the base body.
  • the threaded sleeve 112 can be screwed together with the expanding jaws 111 onto a counter thread 112a which is arranged concentrically with the expanding mandrel 105 on the underside of the guide part 102a.
  • the parts 111 and 112, which are also referred to as expansion heads, and their mode of operation are state of the art, so that there is no need to go into them in detail.
  • the roller axis 106 is noticeably smaller in diameter than the roller 107 or its running surface 107a, which rolls on a first control curve 113 of the control body 109 during the expansion process.
  • the roller 107 is mounted in and between two side cheeks 105b and 105c of the mandrel 105 which are delimited inward by parallel walls, i.e. in a gap ( Figure 3).
  • the cylindrical surface of the roller 107 does not touch surface parts of the expanding mandrel 105: the roller 107 is supported in the expanding mandrel exclusively via the roller axis 106.
  • the control body 109 has a slot 114 which extends from one side to the other and runs in an arc around the pivot axis 108 and is delimited on one side by the first control cam 113 and on the opposite side by a second control cam 115.
  • the clear width of the slot 114 corresponds at every point to the diameter of the roller 107 (plus a small amount of play), so that the roller 107 is enclosed in the slot 114 and positively guided in both directions of movement of the expanding mandrel, the control curve 113 the expanding process and the roller 107 engaging control curve 115 causes the forced retraction.
  • the retraction device 126 is formed by a part of the control body 109 which carries the control curve 115.
  • Both hand levers 103 and 110 have handles at their ends (not shown here), so that the two hand levers can be actuated like pliers with respect to the tool base body 102.
  • Figure 1 shows the two Hand levers 103 and 110 in their most approximated positions. However, it can be seen that the second hand lever 110 can be pivoted counterclockwise from the position shown by a pivoting angle of more than 90 degrees, ie beyond the axis AA.
  • the control curve 113 has a geometric shape with respect to the pivot pin 108 that the flow behavior of the workpiece and the course of the actuating forces are optimally taken into account as a function of the angular position of the hand lever 110, and that in particular the actuating force on the hand lever 110 via the last 20 degrees of the pivot angle of the hand lever is substantially constant.
  • Such a course of forces is shown in FIG. 5 by the middle curve.
  • the control body 109 fits in the area of both control curves 113 and 115 with little play in the gap between the side cheeks 105b and 105c of the expanding mandrel 105, so that it is also guided against rotation between the two side cheeks (FIG. 3).
  • the two semicylindrical-concave ends 116 and 117 of the arcuate slot 114 are connected to one another by the control cams 113 and 115, respectively, and their centers of curvature, which alternatively coincide with the axis of the roller 107 in the two possible end positions, have, according to the stroke of the Expanding mandrel 5 different distances from the pivot axis 108.
  • the course of the curve is monotonous, ie no position of the expanding mandrel is passed through twice when the control body is pivoted in one direction.
  • the ends 116 and 117 form stops for limiting the pivoting angle of the pivotable hand lever 110, the one stop (end 116) limiting the approach of the hand levers to a minimum distance that prevents pinching (FIG. 1).
  • the other stop (end 117) limits the opening movement of the hand levers according to FIG. 2.
  • the arcuate slot 114 has a course with respect to the pivot axis 108 of the control body 109 and the roller 107 such that the actuating force on the movable hand lever 110 is essentially constant over the last 20 degrees of the pivot angle of the hand lever.
  • the control body 109 forms one end of the pivotable hand lever 110 made of forged steel and has an eye 118 for mounting on the pivot pin 108. This passes through a gap 119 in the base body 102 and is laterally outside of the expanding mandrel 105 on the hand levers 103 and 110 opposite side mounted on both sides of the gap 119 in the base body 102. In order to prevent any interference between the eye 118 and the expanding mandrel 105, the latter is provided with a milled groove 120 on one side as an extension of the gap between the side cheeks 105b and 105c. It can also be seen that the pivot pin 108 is close to the counter thread 112a.
  • the control body 109 is provided with a recess 121 on the side of the eye 118 (FIG. 2), so that the lower edge of the control body 109 in the end position according to FIG Spreading mandrel laying around.
  • FIG. 4 shows a differently designed expansion tool 201.
  • the control body 209 is designed as a plate-shaped component - likewise made of steel - and is rigidly inserted into a parallel-walled slot 222 in the movable hand lever 210a.
  • This hand lever is configured in the region of the expanding mandrel 205 to form a housing 223, which in FIG. 4 hides the basic tool body and also — in a side view, not shown — includes the expanding mandrel 205 and the roller and thus also conceals it.
  • the tool body and the two hand levers are made of a light metal alloy, so that there is a considerable reduction in weight.
  • the counter thread 112a is arranged in this case on the outer surface of an attachment part 224, which by means of a hollow cylindrical extension is connected to the tool body.
  • attachment part 224 which by means of a hollow cylindrical extension is connected to the tool body.
  • this extension 125 is drawn with a broken line in order to characterize its geometry and position.
  • Extension piece 224 and extension 125 which are formed in one piece and are made of steel, have a continuous bore which forms the axial guide for the expanding mandrel 105 and 205, respectively. It goes without saying that the parts 224 and 125 can be dispensed with when the steel tool body is formed.
  • FIG. 5 shows a diagram in which the diameter difference .DELTA.D or the double expansion path in millimeters is plotted on the abscissa, whereas the actuation force between the two hand levers 103 and 110 is plotted on the ordinate - in dimensionless units Units selected because the actuating force is of course dependent on the diameter to be expanded, the wall thickness and the Deformation properties of the workpiece.
  • the first millimeter of the path of increasing the diameter of the expanding jaws takes place in the so-called idle stroke. Only the low frictional forces in the system can be overcome.
  • the workpiece is then first elastically deformed up to a point P; This is followed by a plastic deformation of the material until the workpiece has reached the final diameter (dashed line). The low springback after relieving the workpiece is neglected here.
  • the upper curve C1 shows the course of forces in an expansion tool in which the control curve 113 slides on the inner blunt end of the expanding mandrel. It can be clearly seen that the power requirement increases progressively up to a very high final value.
  • the lower curve C2 shows the force curve in the case of a toggle lever expander, and it can be clearly seen that the force requirement drops drastically to a very low value after a maximum has been exceeded. However, this decrease in operating force is in no way accompanied by a reduction in the forces in the system. On the contrary, the opposite is the case: Since the stretched position of the articulation points of the toggle lever system is reached in the area of the dashed line, the forces necessarily increase to the value infinity, provided a corresponding counterforce is provided, which can also occur unintentionally due to a too narrow tolerance, for example.
  • the middle curve C3 describes the course of forces in the drive system according to the invention, and it is clear recognizable that the actuating force remains essentially constant at least in the last part of the expansion path of the workpiece. If any parts touch within the drive system, there is an abrupt increase in force in the direction of curve section C4, ie the operator is immediately signaled that no further expansion is possible at this point.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Earth Drilling (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Gripping On Spindles (AREA)
  • Turning (AREA)
  • Manipulator (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

  1. Outil évaseur (101, 201) pour pièces à usiner creuses, notamment cylindriques creuses comportant un corps de base (102, 202) pourvu d'un premier levier à main (103) et d'un perçage (104), un mandrin élargisseur (105, 205) logé à déplacement axial dans celui-ci, faisant saillie du perçage par une extrémité extérieure qui va en se rétrécissant (105a), un organe de commande (109, 209) pivotant et agissant sur le mandrin élargisseur, agencé également dans le corps de base de l'outil, présentant un axe perpendiculaire à l'axe du perçage (pivot 108) et relié à un second levier à main basculant (110, 210), grâce auquel le mandrin élargisseur peut, par actionnement du levier sur une course déterminée, être sorti du corps de base contre un jeu de mâchoires (111) extensibles à guidage extensible radial, qui est relié au corps de base, les deux leviers à main (103, 110, 210) pouvant être pivotés l'un contre l'autre à la manière d'une pince et le mandrin élargisseur (105, 205) comportant deux joues latérales (105b, 105c) et une lumière située entre celles-ci, dans laquelle s'engage un dispositif de rappel du mandrin élargisseur (105, 205) qui relie le mandrin élargisseur (105, 205) de manière opérative avec le second levier à main (110, 210), caractérisé en ce que
    a) dans la lumière est agencé un galet (107) librement rotatif par rapport au mandrin élargisseur, qui présente une surface cylindrique (107a) et un axe de galet (106) coaxialement désaxé qui est logé dans les joues latérales 105b, 105c) , sans que la surface cylindrique (107a) ne soit elle-même soutenue dans le mandrin élargisseur, et en ce que
    b) l'organe de commande (109) est réalisé en tant que guidage à coulisse et le dispositif de rappel (126) en tant qu'élément de l'organe de commande qui saisit le galet (107) par l'arrière.
  2. Outil évaseur selon la revendication 1, caractérisé en ce que
    a) l'organe de commande (109) présente une lumière (114) s'étendant en arc autour de son axe de pivotement (pivot 108) dont les deux extrémités (116, 117) présentent, selon la course du mandrin élargisseur, des écartements différents dudit axe de pivotement (pivot 108) et dont la largeur intérieure correspond au diamètre du galet (107) , et dans laquelle le galet (107) est guidé dans les deux directions de déplacement du mandrin élargisseur (105), et en ce que
    b) l'organe de commande (109) est guidé au moins partiellement entre les deux joues latérales (105b, 105c) du mandrin élargisseur (105), du fait que l'épaisseur de l'organe de commande (109) correspond au moins en partie à la largeur intérieure des joues latérales (105b, 105c).
  3. Outil évaseur selon la revendication 2, caractérisé en ce que les extrémités (116, 117) de la lumière en forme d'arc (114) forme des butées pour limiter l'angle de basculement du levier à main basculant (110, 110a).
  4. Outil évaseur selon la revendication 2, caractérisé en ce que la lumière en forme d'arc (114) présente un tel tracé par rapport à l'axe de pivotement (108) de l'organe de commande (109) et au galet (107) que la force d'actionnement sur le levier à main mobile (110, 110a) est au moins sensiblement constante sur les 20 derniers degrés de l'angle de basculement du levier à main.
  5. Outil évaseur selon la revendication 1, caractérisé en ce l'extrémité côté galet (105d) du mandrin élargisseur (105) fait saillie hors du corps de base (102).
  6. Outil évaseur selon la revendication 1, caractérisé en ce que l'organe de commande (109) forme l'une des extrémités du levier à main basculant (110, 110a) et présente un oeil (118) pour y faire passer un pivot (108) qui traverse une fente (119) dans le corps de base et est logé dans celle-ci latéralement en dehors du mandrin élargisseur (105) sur le côté opposé aux leviers à main (103, 110, 210) de part et d'autre de la fente (119) dans l'organe de base (102).
  7. Outil évaseur selon la revendication 1, caractérisé en ce que l'axe de pivotement (108) est situé dans un premier plan qui s'étend entre un second plan, dans lequel l'axe du galet (106) passe dans chaque position possible, et l'extrémité rétrécie (105a) du mandrin élargisseur, lesdits deux plans s'étendant respectivement radialement par rapport à l'axe A-A.
  8. Outil évaseur selon la revendication 1, caractérisé en ce que l'organe de commande (209) est réalisé en tant qu'élément en forme de plaque et est introduit dans une lumière (222) à parois parallèles du levier mobile (210).
  9. Outil évaseur selon la revendication 1, caractérisé en ce que le corps de base de l'outil (102, 202) et les deux leviers à main (103, 110, 210) sont réalisés en un alliage de métal léger et l'organe de commande (109, 209) en acier.
  10. Outil évaseur selon la revendication 9, dans lequel le corps de base de l'outil (102, 202) présente un filetage concentrique (112a) au mandrin élargisseur (105, 205) sur lequel peut être vissé le jeu de mâchoires extensibles (111) au moyen d'une douille taraudée, caractérisé en ce que le filetage (112a) est disposé sur la surface extérieure d'un embout (124, 224) qui est relié au corps de base de l'outil (102, 202) au moyen d'un appendice (125) cylindrique creux, et en ce que le perçage traversant l'embout (124, 224) et l'appendice (125) constitue le guidage axial pour le mandrin élargisseur (105, 205).
EP90117329A 1989-09-14 1990-09-08 Outil évaseur pour pièces à usiner creuses Expired - Lifetime EP0417674B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90117329T ATE97840T1 (de) 1989-09-14 1990-09-08 Aufweitewerkzeug fuer hohle werkstuecke.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3930710 1989-09-14
DE19893930710 DE3930710A1 (de) 1989-09-14 1989-09-14 Aufweitewerkzeug fuer hohle werkstuecke
DE4017404 1990-05-30
DE4017404A DE4017404C1 (fr) 1990-05-30 1990-05-30

Publications (2)

Publication Number Publication Date
EP0417674A1 EP0417674A1 (fr) 1991-03-20
EP0417674B1 true EP0417674B1 (fr) 1993-12-01

Family

ID=25885154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90117329A Expired - Lifetime EP0417674B1 (fr) 1989-09-14 1990-09-08 Outil évaseur pour pièces à usiner creuses

Country Status (8)

Country Link
US (1) US5046349A (fr)
EP (1) EP0417674B1 (fr)
JP (1) JP3171845B2 (fr)
AT (1) ATE97840T1 (fr)
CA (1) CA2024394A1 (fr)
DE (1) DE59003679D1 (fr)
DK (1) DK0417674T3 (fr)
ES (1) ES2047223T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924695A1 (de) * 1999-05-28 2000-11-30 Rothenberger Werkzeuge Ag Expansionswerkzeug für Hohlkörper und Verfahren zu dessen Herstellung

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200020C1 (en) * 1992-01-02 1993-07-22 Rothenberger Werkzeuge-Maschinen Gmbh, 6233 Kelkheim, De Hollow, cylindrical workpiece widening tool - has rack teeth on sliding mandrel meshing with teeth on hinged, L=shaped handle
ES1028479Y (es) * 1994-07-01 1995-09-01 Saneper S A Cuerpo abocardador.
US5836197A (en) * 1996-12-16 1998-11-17 Mckee Machine Tool Corp. Integral machine tool assemblies
EP1285705A3 (fr) * 2001-08-13 2003-11-19 Alcan Technology & Management Ltd. Méthode et dispositif pour le calibrage des profiles creux ou des corps creux
ES2211842T3 (es) * 2002-06-06 2004-07-16 Rothenberger Aktiengesellschaft Util manuel en forma de tenazas para ensanchar cuerpos huecos.
US7325436B2 (en) * 2006-05-31 2008-02-05 Enzo Cheng Expanding tool for hollow members
FR2910828B1 (fr) 2006-12-28 2009-03-06 Virax Soc Par Actions Simplifi Dispositif d'outil a expansion pour pince sur machine a realiser des emboitures aux extremites de tuyaux en matiere plastique ou composite
EP2167255B2 (fr) 2007-06-25 2023-08-30 Uponor Innovation AB Procédé et outil pour élargir une extrémité de tuyau
US20100011833A1 (en) * 2008-07-18 2010-01-21 Moneymaker Tools, Llc Pneumaticaly driven pipe swedging and flaring tools
EP2374554B1 (fr) 2010-04-06 2017-09-06 Milwaukee Electric Tool Corporation Outil d'expansion de PEX
DE102010017192A1 (de) * 2010-06-01 2011-12-01 Zack Gmbh Saughalterung
EP2420333B1 (fr) 2010-08-16 2014-11-26 Uponor Innovation AB Outil et procédé d'elargissement de l'extrémité d'un tube
EP2492082B1 (fr) * 2011-02-28 2017-05-10 Rothenberger AG Dispositif et procédé d'élargissement de l'extrémité d'un tuyau en matière synthétique
JP5686666B2 (ja) * 2011-05-02 2015-03-18 日本ピラー工業株式会社 樹脂管の加工装置
US9388885B2 (en) 2013-03-15 2016-07-12 Ideal Industries, Inc. Multi-tool transmission and attachments for rotary tool
US9914260B2 (en) 2014-06-20 2018-03-13 Milwaukee Electric Tool Corporation PEX expanding tool
US9862137B2 (en) 2015-04-20 2018-01-09 Milwaukee Electric Tool Corporation PEX expanding tool
WO2016201196A1 (fr) 2015-06-10 2016-12-15 Milwaukee Electric Tool Corporation Outil d'expansion pex
US10695816B2 (en) * 2016-10-06 2020-06-30 Stride Tool, Llc Apparatus and method for flaring a tube
US11596999B2 (en) 2019-02-20 2023-03-07 Milwaukee Electric Tool Corporation PEX expansion tool
CN212653901U (zh) 2019-02-20 2021-03-05 米沃奇电动工具公司 扩展工具、用于扩展管的工作元件、配件、芯轴组件和管扩展系统
US11110646B2 (en) * 2019-07-23 2021-09-07 Brochman Innovations, Llc PEX tubing expander head
CN214726466U (zh) 2020-11-27 2021-11-16 米沃奇电动工具公司 扩展工具
EP4319959A1 (fr) 2021-04-09 2024-02-14 Milwaukee Electric Tool Corporation Outil d'expansion
CN116748398B (zh) * 2023-08-21 2023-10-31 江苏东成工具科技有限公司 扩径工具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US720322A (en) * 1902-02-06 1903-02-10 Charles E Burkholder Pump-operating device.
GB866994A (en) * 1957-11-13 1961-05-03 Wlodimierz Rast Improvements in or relating to an expanding tool for pipes
US3052828A (en) * 1959-08-05 1962-09-04 P S P Engineering Co Rotary electromagnetic actuator
GB2098529A (en) * 1981-05-15 1982-11-24 Sykes Pickavant Ltd Improvements in or relating to flaring or other press tools
CA1293430C (fr) * 1986-07-16 1991-12-24 Heather Joan Lind Evaseur de tubes
DE3732628C1 (de) * 1987-09-28 1989-04-27 Rothenberger Werkzeuge Masch Aufweitewerkzeug fuer hohle Werkstuecke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924695A1 (de) * 1999-05-28 2000-11-30 Rothenberger Werkzeuge Ag Expansionswerkzeug für Hohlkörper und Verfahren zu dessen Herstellung
DE19924695C2 (de) * 1999-05-28 2001-05-10 Rothenberger Werkzeuge Ag Expansionswerkzeug für Hohlkörper und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
CA2024394A1 (fr) 1991-03-15
DK0417674T3 (da) 1994-03-21
JP3171845B2 (ja) 2001-06-04
DE59003679D1 (de) 1994-01-13
JPH03174928A (ja) 1991-07-30
EP0417674A1 (fr) 1991-03-20
US5046349A (en) 1991-09-10
ES2047223T3 (es) 1994-02-16
ATE97840T1 (de) 1993-12-15

Similar Documents

Publication Publication Date Title
EP0417674B1 (fr) Outil évaseur pour pièces à usiner creuses
EP2739445B1 (fr) Paire de mâchoires pour l'estampage de trous
DE102005003617B3 (de) Presszange zm Einpressen mehrerer Kerben auf dem Umfang eines Kontaktelementes
DE2654102C2 (de) Expansionskopf für Rohraufweitegeräte mit auswechselbaren Expansionsbacken
DE102005003615B3 (de) Presszange zum Einpressen mehrerer Kerben auf dem Umfang eines Kontaktelementes
EP0140009A1 (fr) Presse à refouler radiale pour pièces ayant une face externe cylindrique
DE3732628C1 (de) Aufweitewerkzeug fuer hohle Werkstuecke
DE4237621B4 (de) Nietensetzvorrichtung
EP0824979B1 (fr) Procédé pour connecter des pièces ainsi que presse pour cet usage
AT393302B (de) Vorrichtung zur verbindung zweier werkzeugteile
DE19652057A1 (de) Spannzwinge mit drehbaren und verschiebbaren Spannelementen
DE3022531A1 (de) Vorrichtung zur einstellung des spiels zwischen zwei maschinenelementen
DE10253888A1 (de) Befestigungseinheit
EP1171260A1 (fr) Dispositif pour la division par rupture d'une piece
EP0619153B1 (fr) Outil évaseur pour pièces à usiner creuses
EP0400345A1 (fr) Dispositif de fixation
EP3050673B1 (fr) Dispositif de tension
DE3930710C2 (fr)
DE4017404C1 (fr)
EP1911550A2 (fr) Dispositif destiné au centrage d'un disque d'embrayage d'un embrayage de véhicule
DE2357860C2 (de) Kupplung
DE102017128474B3 (de) Rohrschneidemaschine mit Schneiddorn
DE19531016A1 (de) Verbindungselement, nach Art eines Niets
EP1762768B1 (fr) Dispositif écarteur ajustable
DE4028950A1 (de) Drehmomentvorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19910910

17Q First examination report despatched

Effective date: 19920908

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19931201

REF Corresponds to:

Ref document number: 97840

Country of ref document: AT

Date of ref document: 19931215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILA

REF Corresponds to:

Ref document number: 59003679

Country of ref document: DE

Date of ref document: 19940113

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940107

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2047223

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 90117329.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970829

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980811

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980826

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980909

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 19980929

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19980930

Year of fee payment: 9

Ref country code: BE

Payment date: 19980930

Year of fee payment: 9

EUG Se: european patent has lapsed

Ref document number: 90117329.4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990908

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990930

BERE Be: lapsed

Owner name: ROTHENBERGER WERKZEUGE-MASCHINEN G.M.B.H.

Effective date: 19990930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990908

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000401

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030731

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030830

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030909

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20030922

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050908

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040909