WO1995009703A1 - Outil de sertissage - Google Patents

Outil de sertissage Download PDF

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Publication number
WO1995009703A1
WO1995009703A1 PCT/US1994/011297 US9411297W WO9509703A1 WO 1995009703 A1 WO1995009703 A1 WO 1995009703A1 US 9411297 W US9411297 W US 9411297W WO 9509703 A1 WO9509703 A1 WO 9509703A1
Authority
WO
WIPO (PCT)
Prior art keywords
jaw
rotation
swaging
sleeve
output shaft
Prior art date
Application number
PCT/US1994/011297
Other languages
English (en)
Inventor
Srinivasarao B. Suresh
Original Assignee
The Deutsch Company
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 The Deutsch Company filed Critical The Deutsch Company
Priority to AU79668/94A priority Critical patent/AU7966894A/en
Publication of WO1995009703A1 publication Critical patent/WO1995009703A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • 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
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings

Definitions

  • This invention relates to a swaging tool and related method for swaging a fitting. More particularly, the present invention finds particular use in connecting a tube to a fitting, where the fitting may be used to join two tubes together.
  • Swaged fittings have been used for many years to connect tubes and pipes in various types of fluid systems, including those used in the aircraft, marine, petroleum and chemical industries.
  • the tube ends are inserted into a fitting, usually in the form of a cylindrical sleeve, and then the fitting is swaged with a swaging tool to produce a fluid-tight connection between the tubes.
  • This swaging operation usually is carried out by applying a radial force which radially compresses the fitting and tubing inward.
  • This radial force may be directly applied by the swaging tool, by crimping the tubing, or indirectly by a specially shaped ring which is moved axially by the swaging tool over the sleeve.
  • the sleeve in this latter process is usually tapered in some manner, such that the axial movement of the ring creates heightened radial force.
  • the invention of the present application is directed to the latter type of swaging tool, which swages fittings having axially movable swaging rings. These fittings shall be referred to as axially swaged fittings.
  • Typical axially swaged fittings comprise a cylindrical sleeve having openings at opposite ends for receiving the ends of two tub ⁇ .s, with a swaging ring at each end of the sleeve.
  • the outer surface of the sleeve and the inner surface of the swaging ring which contact each o-her are shaped such that axial movement of the swaging ring over the sleeve applies a radial force to the sleeve and, to the tubes.
  • swaging tools have typically employed pneumatic or hydraulic compression as a power source, as these sources of energy readily supply the large forces necessary for swaging. While such a configuration may not be too burdensome in certain manufacturing or shop facilities, a drawback of these prior swaging tools is the required localized presence of hydraulic or pneumatic compressor and appropriate connecting hoses. Even where such is available, these swaging tools are generally bulky and not suited to frequent movement.
  • the tool operator must first swage one side of the fitting to one of the tubes by axially moving the corresponding swaging ring over the corresponding end of the sleeve. After this, the operator must usually rotate the orientation of the tool by 180 degrees and repeat the above procedure to swage the other side of the fitting to the other tube. That is to say, swaging tools are typically operated twice for each fitting, once to swage each end of the fitting to each of tube. The swaging tool is typically rotated in between these two swaging operations, since it is frequently easier to rotate the swaging tool than the tubes and fitting.
  • the present invention presents a method of swaging and a relatively inexpensive swaging tool that can be configured to accept nearly any mechanical input.
  • the swaging tool presented herein is of simple construction, small weight, and does not require a shop environment or source of compressed hydraulic or pneumatic fluid.
  • swaging may be inexpensively performed in any environment, and the swaging tool may be easily moved to another location.
  • the swaging tool includes a jaw mechanism, including a first jaw that engages a ring or sleeve of a fitting, and a second jaw that engages the other of the ring and sleeve.
  • the jaw mechanism is controlled to move the first and second jaws relative to each other between a first position, in which the jaws are spaced apart and can accept, respectively, the ring and the sleeve prior to the swaging, and a second position, in which the jaws are moved together to complete the swaging of the sleeve to the tube.
  • the energy to move the jaw mechanism comes from an input shaft, which is rotated, by a wrench, power drill, or other device, and a gear mechanism, which converts the rotation of the input shaft to movement of the jaw mechanism between the two positions.
  • each of the two jaws has an identical yoke, such that the swaging tool may be used to swage multiple fittings without requiring its rotation or the rotation of the tubes and fittings.
  • the present invention also provides, in another aspect, a method of using a mechanical input for the swaging operation, including the use of the following steps: (a) engaging the sleeve with one of the jaws; (b)engaging the swaging ring with the other jaw; and (c) rotating the input shaft about its axis of rotation in at least one rotational direction to thereby converge the jaws, and axially move the swaging ring over the sleeve to swage the tube to the sleeve.
  • a method of connecting each of two tubes to a fitting includes the steps of: (a) engaging the sleeve with one of the jaws; (b) engaging one ring with the other jaw; (c) rotating the input shaft to close the jaws and thereby swage the first tube to the fitting; (d) rotating the input shaft the other way and opening the jaws; (e) without rotating the tool by 180 degrees, engaging the one jaw with a second ring and the sleeve with the other jaw; and (f) rotating the input shaft in the first direction to again close the jaws and complete the coupling.
  • FIG. 1 is a cross-section of an exemplary fitting that the current invention may operate upon. As seen in
  • FIG. 1 there are two tubes to be connected, a sleeve and
  • FIG. 2 is a close up view of a portion of the exemplary fitting of FIG. 1, showing a tube, one of the rings and the sleeve prior to the swaging operation.
  • FIG. 3 is the close-up view similar to FIG. 2, but showing the ring of FIG. 2 axially displaced to the right in completion of the swaging operation.
  • FIG. 4 is a perspective view of one preferred swaging tool that embodies the current invention. It 15 illustrates the a gear arrangement that is effective to open and close a jaw mechanism to perform the swaging operation upon rotation of an input shaft. In the embodiment shown in FIG. 4, two jaws are each moved toward and away from each other in response to rotation of the
  • the particular embodiment uses a pair of bevel gears that effectuate a 2:1 gear reduction to amplify the torque used to move the jaw mechanism.
  • FIG. 5 is a perspective view of a second preferred swaging tool of the current invention. As seen
  • one jaw of the jaw mechanism is fixed and the bevel gear arrangement opens and closes the jaw mechanism by moving the sther jaw of the jaw mechanism in response to
  • FIG. 6' is a perspective view of a third preferred embodiment
  • FIG. 7 is a perspective view of a swaging tool similar to that of FIG. 6, which illustrates the configuration of the worm gear.
  • FIG. 8 is a perspective view a swaging tool similar to the tool of FIG. 2, but wherein the jaws of the tool each have upper and lower jaw portions that close to retain a ring and sleeve of the fitting against cocking during the swaging operation.
  • the preferred implementation is a swaging tool that includes all of the specific aspects of the invention summarized above, and claimed below.
  • This swaging tool generally includes a jaw mechanism, having two jaws that are mechanically opened and closed by rotation of an input shaft to perform the swaging operation.
  • the swaging tool is discussed further below; however, a better understanding of the operation of the tool will be gained by first describing a typical axially swaged fitting, with reference to FIGS. 1-3.
  • An exemplary fitting 12 is used to join two tubes 14 and 16, as seen in FIG. 1.
  • the swaging tools of the present invention are particularly well-adapted for swaging fittings of the type that have a cylindrical sleeve 18 with a tapered outer surface 20, and a cylindrical inner surface 22 for receiving the tube 14 or 16.
  • a swaging ring 24 surrounds the sleeve 18 and has an inner surface 26 which engages the outer surface 20 of the sleeve 18.
  • the swaging ring 24 Before swaging, the swaging ring 24 is positioned outward with respect to the sleeve 18 such that no radial force is applied by the swaging ring to the sleeve. During swaging, the swaging ring 24 is moved axially in a forward direction over the sleeve 18 such that the interaction of the tapered surfaces on the ring and the sleeve applies a radial inward force to the tube 14 or 16, thereby deforming both the sleeve 18 and the tube 14 or 16. This axial movement of each of two rings 24 is designated in FIG. 1 by the reference numeral 28 for purposes of illustrating one swaging process.
  • the swaging ring 24 As best seen in FIGS. 2-3, as the swaging ring 24 is moved in the forward direction, its inner surface 26 coacts with the tapered surface 20 of the sleeve 18 to press inward upon the tube 14. This motion deforms both the sleeve 18 and the tube 14 to provide a fluid-tight permanent seal, as illustrated by FIG. 3.
  • the cylindrical inner surface 22 of the sleeve 18 may be provided with ridges 30 which create localized deformation of the tube 14 to further improve upon the fluid-tight seal created by the swaging operation.
  • fittings shall be referred to generally as axially swaged fittings. - t will be appreciated, however, that other configurations of the contacting surfaces between the fitting 18 and the ring 24 are possible, since the operation of the tool is independent of these configurations. 2. The Configuration Of Several Preferred Swaging Tools.
  • FIGS. 4, 5 and 6-7 each describe a different embodiment of swaging tool that embodies the present invention.
  • Each of these are preferred specific embodiments which have certain variations, for example, precise mechanical layout, the use of reduction gearing to increase torque used for swaging, and the amount of force multiplication, as well as many other variations.
  • the construction of these preferred tools is basically the same for each tool, and therefore, the swaging tool of FIG. 4 will first be described in complete detail, followed by a discussion of variations in this design embodied by the two tools of FIGS. 5 and 6-7, respectively.
  • a first swaging tool 32 is shown having an input shaft 34 that is hexagonal in cross-section.
  • the input shaft rotates in both of the clockwise and counterclockwise directions to, respectively, open and close a jaw mechanism 36 that causes one of the rings 24 to be axially swaged over the sleeve 18 and tube (not shown) .
  • rotation of the shaft 34 in the clockwise direction moves each of first and second jaws 40 and 42 toward each other and toward a second position in which the swaging operation is completed, as indicated by two arrows 44.
  • a guide mechanism (not shown in FIG.
  • the swaging tool 32 is mounted by a housing 46, which includes upper and lower housing portions 48 and 50, connected by at four locations 52 by appropriate fasteners.
  • the upper and lower housing portions 48 and 50 combine to form four journal bearings 54 which support each of the input shaft 34 and an output shaft 56 at their extremities, the two cooperating to drive the jaw mechanism 36.
  • the ends of each of the input shaft 34 and the output shaft 56 are supported in a manner that permits an input bevel gear 58 of the input shaft to mesh with an output bevel gear 60 of the output shaft, the two forming a reduction gear assembly that increases torque by a 2:1 ratio.
  • gear ratio may be chosen to be 20:1 or larger.
  • each of the first and second jaws 42 and 44 are identical in construction, and each has a vertical yoke 68, a main body 70, and a threaded bore 72 that mates with the threaded exterior 66 of either end 62 and 64 of the output shaft.
  • each jaw rides within longitudinal slots 74 and 76 that extend vertically through the upper housing portion 48, and nearly through the lower housing portion 50 in the downward direction, respectively.
  • each jaw 42 and 44 protrudes vertically above the top surface 73 of. the upper housing portion 48, while the main body rides within the longitudinal slots 74 and 76, ⁇ .supported by bearings (not shown) at the bottom of the s.lot 76 of the lower housing portion 50, disposed between- the main body 70 and the bottom of the slot 76.
  • The-rguide mechanism (shown in FIG. 6) is formed of a groove ⁇ ifi one of the upper -and lower housing and a lug that is"-vertically restrained within the groove, and constrains the jaws 42 and 44 to ride upon the bearings in linear fashion only.
  • the yoke 74 of each jaw 42 and 44 is adapted to engage either the ring 20 or the sleeve 18 from either side of the yoke. This advantage is provided by making the portions of the yoke 74 which engage the sleeve 18 or the ring 24 identical to each other on opposite sides of each yoke. As explained below, the advantage provided by this configuration is significant.
  • the operator may first swage one side of the fitting 12 by, for example, engaging a groove 80 on the sleeve 18 with the yoke 74 of one jaw 42 or 44, to restrain the sleeve 18 from movement relative to the one jaw 42 or 44 during swaging.
  • the yoke 74 of the other jaw 44 or 42 is then positioned in engagement with the outer end of the swaging ring 24, which is retained from axial movement away from " the other jaw by its snug engagement with the yoke and by a canted surface 82.
  • the operator does not need to rotate the tool 10 by 180 degrees to swage the other end of the fitting 12. Instead, the operator need only again rotate the input shaft 34, in the opposite rotational direction (counterclockwise, in the embodiment of FIG. 4) , to move the j wfa 42 and 44 back toward the first, spaced apart position.
  • the operator then lifts the fitting 11 such that the groove 80 of the sleeve 18 is removed from the yoke 74, and positions the groove in contact with the yoke 74 of the one jaw 42 or 44 that previously retained the first swaging ring 24.
  • the operator also moves the second ring 24, shown in FIG.
  • the canted surface 82 is canted inwardly about 0-3 degrees with respect to a normal vertical surface. This canted surface is added to the yokes 74 so that the deflection in the tool resulting from the swaging forces, when applied, brings the surfaces into parallelism when maximum swaging forces are achieved. This helps reduce, and in some cases eliminates, undesir ⁇ able cocking of the swaging ring 24 when the swaging ring is being moved over the sleeve 18 during the swaging opera ⁇ tion.
  • Another advantage of the swaging tool 32 is its balanced configuration.
  • This balanced configuration is provided by aligning the yokes 74 of the two jaws 42 and 44 along a common axis such that the forces generated during the swaging operation are also concentrated along this axis.
  • This axis is the same as the axis of the fitting 12 and corresponds to the focal*, point of the semi-circularc base 84 of each yoke 74.
  • This axis also is parallel to the longitudinal axis of the housing 46.
  • the jaws 42 and 44 are identical in structure, and their semi- circular bases 84 are spaced substantially th-a same distance from the top surface 76 of the upper housing portion 48. This structure advantageously deletes any external moment or force to the tool 32. Eliminating this external moment or force therefore provides easier manipu ⁇ lation and movement of the tool 32 by the operator.
  • Most of the components of the tool 32 are manu- factured from bar stock and may be machined into their various shapes by an electrical discharge machine.
  • Pre ⁇ ferred materials for the housing 46 include stainless steel, such as PH 13-8 MO stainless steel.
  • Preferred materials for the jaws 42 and 44, input and output shafts 34 and 36, and bevel gears 58 and 60 include stainless steel, such as PH 17-4 MO stainless steel.
  • the bearings preferably are made from oil impregnated high strength powdered metal to reduce the need to constantly relubricate the tool.
  • Second and third swaging tools 86 and 88 are shown, respectively, in FIGS. 5 and 6-7, and are constructed of the same materials for the swaging tool 32 described above.
  • FIG. 5 shows a swaging tool that is similar to the tool described above, but with a different housing and jaw mechanism 36, wherein only one jaw 42 is moved by the output shaft 56 and the other jaw 40 remains stationary with respect to the housing.
  • the input shaft 34 is mounted at one end of the housing 46, which is comprised of a single piece of steel.
  • the input shaft 34 is borne by two journal bearings, and protrudes via an aperture 90 through a side wall 92 of the housing for easy operator access. While-- the input shaft 34 for the embodiment of FIG.
  • the output shaft 56 of this second swaging tool 86 is slightly different, utilizing an output bevel gear 94 that meshes with the input bevel gear of the input shaft at a side opposite the jaw mechanism 36.
  • This output shaft 56 protrudes through two chambers 95 of the housing' and a center wall 96, and is borne by journal bearings (not -shown) at each longitudinal end 98 of the housing 46.
  • Rotation of the input shaft 34 causes the output shaft 56 to rotate with twice the torque of the input shaft, and the threaded exterior causes the single moving jaw 42 to move with respect to the housing 46.
  • FIGS. 6 and 7 show two swaging tools 88 that are similar to the swaging tool of FIG. 5, but that utilize a worm gear assembly 100 in lieu of the bevel gear assembly described above. That is to say, at an end 102 of the input shaft 34 interior to the housing, a worm shaft 104 rotates with rotation of the input shaft about their common axis of rotation. The worm shaft 104 rotates a worm gear 106 of the output shaft 56 to thereby cause it to rotate with a 20:1 or more increase in torque, to thereby provide desired force multiplication to open and close the jaw mechanism 36. As described above, movement of the moving jaw is constrained to linear movement only by a lug 108 on either side of the main body 76 of the jaw 42 which rides within a longitudinal groove 110 on each interior side of the housing 46.
  • each jaw 42 and 44 may be constructed to include a vertically-sliding upper jaw portion 112.
  • the upper jaw portion 112 is shaped as an inverted "U" with a semi-circular ceiling 114, which is configured to lock either of the sleeve 18 or swaging ring 24 in position for the swaging operation.
  • the vertically- extending sides 116 of each upper jaw portion 112 are of reduced width and slide within vertical slots 118 within the main body 76 of each jaw 42 and 44. In this manner, the upper jaw portion 112 may be manually lifted for acceptance of either the sleeve 18 or swaging ring 24, and then released to clamp the same under the force of gravity.
  • the upper jaw portion 112 also has a canted surface 120 which cooperates with the canted surface 82 of the jaw 42 and 44 for retaining the sleeve or swaging ring against cocking. This maintains the axis of the fitting 12 during swaging, corresponds to the focal point of the both of the semi-circular ceiling 114 and the semi-circular base 84 and deletes any external moment or force to the tool 32. Eliminating this external moment or force therefore provides for easier use of the tool 32, 86 or 88 by the operator.
  • the swaging tool of the present invention which consists of only three major components and gearing, provides a swaging tool of greatly reduced size and weight. This results in a more simplified swaging operation and the ability to perform swaging operations that would normally be difficult or impossible to perform in a confined area, such as a bulkhead or the like.
  • the small and lightweight nature of the tool helps reduce operator fatigue, increases productivity and reduces labor and maintenance expenses.
  • the use of an appropriately configured input shaft, having a hexagonal shape, for example permits use of nearly any mechanical tool to supply the force used to drive the swaging operation.
  • These tools may include, by way of example, a wrench, hand crank, power drill and ratchet drive, as well as many other tools.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé de sertissage ainsi qu'un outil de sertissage relativement bon marché pouvant être configuré pour pratiquement n'importe quel insert mécanique. L'invention concerne plus particulièrement trois outils de sertissage présentant chacun un arbre d'entrée rotatif (34) acceptant une clé ou un insert de perceuse mécanique, un ensemble réducteur multipliant le couple, et un mécanisme à mâchoires s'ouvrant et se refermant de manière à permettre le sertissage axial et l'assemblage d'un tube avec un raccord (12). Les deux mâchoires (40, 42) comportent chacun un ensemble étrier (68) identique qui retient de maniètre interchangeable un manchon (81) du raccord ainsi qu'une bague de sertissage (24). Lorsque le mécanisme à mâchoires est fermé, la bague de sertissage est déplacée axialement sur le raccord de manière à resserrer ce dernier et à produire un joint d'étanchéité entre le raccord et le tube. Ainsi, le raccord peut être utilisé pour accoupler des tubes sans rotation intermédiaire de l'outil de sertissage selon l'invention.
PCT/US1994/011297 1993-10-06 1994-10-06 Outil de sertissage WO1995009703A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79668/94A AU7966894A (en) 1993-10-06 1994-10-06 Swaging tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13281193A 1993-10-06 1993-10-06
US08/132,811 1993-10-06

Publications (1)

Publication Number Publication Date
WO1995009703A1 true WO1995009703A1 (fr) 1995-04-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/011297 WO1995009703A1 (fr) 1993-10-06 1994-10-06 Outil de sertissage

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AU (1) AU7966894A (fr)
WO (1) WO1995009703A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922537A2 (fr) * 1997-12-10 1999-06-16 Franz Viegener II GmbH & Co. KG. Outil de pressage pour connecter de facon permanente un raccord et le bout d'un tube introduit dans ledit raccord
WO1999047311A1 (fr) * 1998-03-17 1999-09-23 Aeroquip Corporation Outil de raccordement de tuyaux
CN103317463A (zh) * 2013-06-18 2013-09-25 中联重科股份有限公司 用于在转轴上安装转动件的工装
DE102020108873A1 (de) 2020-03-31 2021-09-30 Baudat Gmbh & Co. Kg Werkzeug zum Verpressen und/oder zum Aufweiten eines Rohrabschnitts

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733368A (en) * 1952-11-12 1955-07-13 Gordon Francis Staples Improvements in or relating to vices
US3726122A (en) * 1971-03-10 1973-04-10 Mc Donnell Douglas Corp Swaging tool
WO1987001426A1 (fr) * 1985-09-02 1987-03-12 Veikko Salo Outil pour poser des tuyaux
EP0444491A1 (fr) * 1990-02-27 1991-09-04 Ciro Mastromatteo Etau pour assemblage de jointures pour tuyaux flexibles
WO1993015348A1 (fr) * 1992-01-31 1993-08-05 The Deutsch Company Outil de sertissage par poussee axiale de raccords
EP0598173A2 (fr) * 1992-11-17 1994-05-25 Thermconcept Produkte für Heizung und Sanitär Gmbh & Co. Dispositif pour la mise en place d'un raccord sur un tube

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733368A (en) * 1952-11-12 1955-07-13 Gordon Francis Staples Improvements in or relating to vices
US3726122A (en) * 1971-03-10 1973-04-10 Mc Donnell Douglas Corp Swaging tool
WO1987001426A1 (fr) * 1985-09-02 1987-03-12 Veikko Salo Outil pour poser des tuyaux
EP0444491A1 (fr) * 1990-02-27 1991-09-04 Ciro Mastromatteo Etau pour assemblage de jointures pour tuyaux flexibles
WO1993015348A1 (fr) * 1992-01-31 1993-08-05 The Deutsch Company Outil de sertissage par poussee axiale de raccords
EP0598173A2 (fr) * 1992-11-17 1994-05-25 Thermconcept Produkte für Heizung und Sanitär Gmbh & Co. Dispositif pour la mise en place d'un raccord sur un tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922537A2 (fr) * 1997-12-10 1999-06-16 Franz Viegener II GmbH & Co. KG. Outil de pressage pour connecter de facon permanente un raccord et le bout d'un tube introduit dans ledit raccord
EP0922537A3 (fr) * 1997-12-10 2005-08-10 VIEGA GmbH & Co. KG. Outil de pressage pour connecter de facon permanente un raccord et le bout d'un tube introduit dans ledit raccord
WO1999047311A1 (fr) * 1998-03-17 1999-09-23 Aeroquip Corporation Outil de raccordement de tuyaux
CN103317463A (zh) * 2013-06-18 2013-09-25 中联重科股份有限公司 用于在转轴上安装转动件的工装
DE102020108873A1 (de) 2020-03-31 2021-09-30 Baudat Gmbh & Co. Kg Werkzeug zum Verpressen und/oder zum Aufweiten eines Rohrabschnitts
WO2021197873A1 (fr) * 2020-03-31 2021-10-07 Rehau Ag + Co Outil permettant de comprimer et/ou de dilater une section de tuyau

Also Published As

Publication number Publication date
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