EP2080592B1 - Crimping ring - Google Patents
Crimping ring Download PDFInfo
- Publication number
- EP2080592B1 EP2080592B1 EP09000263.5A EP09000263A EP2080592B1 EP 2080592 B1 EP2080592 B1 EP 2080592B1 EP 09000263 A EP09000263 A EP 09000263A EP 2080592 B1 EP2080592 B1 EP 2080592B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crimping
- levers
- carrier
- ring according
- jaws
- 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 - Fee Related
Links
- 238000002788 crimping Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B21D39/048—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 using presses for radially crimping tubular elements
Definitions
- the invention relates to a press ring according to the preamble of claim 1.
- the known pressing ring ( WO 03/049883 A ) has a support on which a pressing jaw is fixedly provided.
- Levers are articulated on the carrier and carry movable pressing jaws. They have slots through which thin mandrels protrude, which allow a shift of the pressing jaws against the levers.
- the invention has the object of providing the generic press ring in such a way that the workpieces are properly pressed radially.
- both levers are each provided with a clamping jaw pivotally mounted on them, so that the workpieces are pressed radially correctly.
- the pliers ensure that the two levers can be pressed evenly over their circumference by means of the engaging parts during the pressing process.
- the pressing ring and the pliers are advantageously used in the sanitary area to connect pipes by means of fittings with each other.
- the press ring 1 has a carrier 2, which is designed as a bracket, at its free ends in each case a lever 3, 4 is articulated.
- the two levers 3, 4 are of the same design and connected in each case via an axis 5, 6 pivotally connected to the free ends of the bracket 2.
- the mutually parallel axes 5, 6 are provided at one end with a widened head 7, which bears against the flat side surface 8 of the bracket 2.
- On the over the opposite flat side surface 9 of the bracket 2 slightly protruding end of the axes 5, 6 each have a locking ring 10, 11 is placed, with which the axis 5, 6 is axially secured.
- the bracket 2 extends approximately over an angular range of about 180 °. At both ends of the bracket 2 is provided with a central recess 12 into which the lever 3, 4 with a narrow projection 13, 14 engages.
- the projections 13, 14 have mutually parallel planar side surfaces 15, 16, with which they rest flat against the mutually facing flat inner sides 17, 18 of the recesses 12.
- the projections 13, 14 are formed so that they do not protrude beyond the curved outer side 19 of the bracket 2 in each pivotal position of the lever 3, 4.
- the free ends of the projections 13, 14 are advantageously rounded and arranged in the recesses 12, that the levers 3, 4 can easily pivot relative to the bracket 2.
- the levers 3, 4 have the same cross-sectional thickness in the area outside the projection 13, 14. Towards their free ends widen the lever 3, 4.
- the side surfaces 20, 21 and 22, 23 of the levers 3, 4 are each flat and lie in the same plane as the side surfaces 8, 9 of the bracket 2 ( Fig. 2 ).
- the pressing ring 1 has continuous flat side surfaces which ensure trouble-free handling of the pressing ring 1 during the pressing process.
- the mutually facing end faces 24, 25 of the levers 3, 4 are flat. During the pressing process, the levers 3, 4 can be pivoted so far against each other that their flat end faces 24, 25 only have a small distance from each other.
- Fig. 1 shows, the free ends of the bracket 2 are rounded frontally.
- the levers 3, 4 are provided in the area next to the projection 13, 14 with a correspondingly curved end face 26, 27. Between these end faces, only a very narrow part-circular gap 28, 29 is formed, the width of which does not change when the levers 3, 4 are pivoted relative to the bracket 2. Since the gaps 28, 29 have very small gap widths, there is no danger of clamping during the pressing process.
- the levers 3, 4 each have a curved outer side 30, 31 which connects the side surfaces 20, 21 and 22, 23 of the levers 3, 4.
- the outer sides 30, 31 is formed in each case a recess formed as a recess 32, 33, in the pressing process, an intermediate pliers 34 (FIG. Fig. 4 ) is used.
- the receptacles 32, 33 are formed so that the intermediate pliers 34 can be positively connected to the press ring 1.
- In the receptacles 32, 33 respectively opens an opening 35, 36 ( Fig. 3 ) provided in the side surfaces 21 and 22 of the levers 3, 4.
- three pressing jaws 40 to 42 are provided, which, seen in the axial direction of the pressing ring 1, each have a part-circular pressing contour 43 to 45.
- the pressing jaws 40 to 42 are formed so that they abut one another at the end of the pressing process, wherein the pressing contours 43 to 45, seen in the axial direction of the pressing ring 1, form a closed circle.
- the pressing jaw 40 is attached to the bracket 2 by means of an axle 46. It protrudes with its two ends on the pressing jaw 40 and is axially secured by a respective securing ring 47, 48.
- the pressing jaw 40 is in view according to Fig. 1 V-shaped.
- the axis 46 is provided in the region of the V-tip.
- the inside of the pressing jaw 40 is formed by the part-circular pressing contour 43.
- the bracket 2 has at its two side surfaces 8, 9 each have a recess 49, the bottom 50 extends V-shaped. Between the recesses 49 (not shown) web is formed, which is encompassed by the pressing jaw 40. It has accordingly U-shaped cross-section and lies with her legs 51, 52 on the web. In addition, the legs 51, 52 lie flat with their straight outer sides 53, 54 on the bottom 50 of the recesses 49.
- the pressing jaw 40 is connected both in the circumferential direction and in the axial direction with the bracket 2, that the pressing jaw 40 performs no undesired movements relative to the bracket 2 during the pressing process.
- the pressing jaw 40 can be easily replaced if a different pressing contour is required for the pressing of the workpieces. After loosening the retaining rings 47, 48, the axle 46 can be pulled out and the pressing jaw 40 are removed.
- the other two pressing jaws 41, 42 are movably provided on the levers 3, 4 and formed the same.
- the levers 3, 4 have for the articulation of the pressing jaws 41, 42 each have a narrow projection 55, 56 (FIG. Fig. 1 ) which projects centrally from the inside 57, 58 of the levers 3, 4.
- the projections 55, 56 are encompassed by the cross-sectionally U-shaped pressing jaws 41, 42.
- the pressing jaws With one axis 59, 60, which passes through the pressing jaws 41, 42 and the projections 55, 56, the pressing jaws are hinged to the levers 3, 4.
- the axes 59, 60 are axially secured by seated on their ends locking rings 61 to 63. This makes it possible, even the pressing jaws 41, 42 to replace easily.
- the pressing jaws 41, 42 have like the pressing jaw 40 V-shaped planar outer sides 64, 65 and 66, 67, which merge arcuately into one another. In the transition region, the axis 59, 60 is provided. The outer sides 64, 65 and 66, 67 merge into one another via a view in part-circular section 68, 69. In the inner sides 57, 58 of the lever 3, 4, a recess 70, 71 is provided, the bottom same curvature radius as the outer side portions 68, 69 of the pressing jaws 41, 42 have. They lie with these outer side portions 68, 69 flat on the bottom of the recesses 70, 71 at. The axis of curvature of the outer side portions 68, 69 and the bottom of the recesses 70, 71 is formed by the longitudinal center line 73, 73 'of the axes 59, 60.
- Fig. 1 results, lie the recesses 70, 71 of the levers 3, 4 at a small distance from the part-circular curved end faces 26, 27. Following the recesses 70, 71 the inner side 57, 58 is flat.
- the inner side 72 of the bracket 2 is in the region of the one leg 74, 74 'of the pressing jaws 41, 42 so far set back that the pressing jaws 41, 42 only with the free end of their legs 74, 74' on the inside 72 of the bracket 2 before abut the pressing process.
- the pressing jaws 41, 42 starting approximately from the region of their axes 59, 60 distance.
- the pressing jaws 40 to 42 are designed so that they do not protrude laterally beyond the side surfaces 8, 9 of the bracket 2 and the side surfaces 20 to 23 of the lever 3, 4.
- the levers 3, 4 are spring-loaded inwards, so that the pressing jaws 40 to 42 with inlaid, not yet pressed workpiece their in Fig. 1 take shown position in which rest the pressing jaws 41, 42 with the free ends of their legs 74, 74 'on the inside 72 of the bracket 2.
- the pressing jaws 40 to 42 in this case have low, preferably approximately the same distance from each other.
- the pressing contours 43 to 45 lie in an axial view on the same circle of curvature. Due to the bias of the lever 3, 4 inward, the workpiece to be pressed can be easily inserted into the press ring 1.
- the pressing jaws 41, 42 are under the spring force on the workpiece and need not be held by hand in this position.
- the intermediate pliers 34 can be easily connected to the press ring 1 with the inserted workpiece.
- the intermediate pair of pliers 34 has two two-armed lever 77, 78, which lie between two tabs 79, 80, which are formed the same.
- the levers 77, 78 and the tabs 79, 80 are connected by an axis 81, 82 with each other.
- the two levers 77, 78 are advantageously so spring-loaded against each other, that to be connected to the press ring 1 arms 83, 84 of the lever 77, 78 opposite to each other are pivoted outwardly, while the other arms 85, 86 are pivoted toward each other.
- the arms 83, 84 each have an engagement portion 87, 88 which engages in the receptacles 32, 33 of the lever 3, 4.
- the engagement members 87, 88 each have a part-circular extending outside 89, 90, which extends over approximately 180 °.
- the curved outer sides 89, 90 facilitate the insertion of the engaging parts 87, 88 in the receptacles 32, 33 of the lever 3, 4.
- the guide surfaces 37, 38 of the receptacles 32, 33 facilitate the attachment of the intermediate pliers 34.
- About the guide surfaces 37, 38 are the engagement members 87, 88 reliably guided so that their outer sides 89, 90 abut against the active surfaces 39 in the receptacles 32, 33 area.
- the active surfaces 39 are curved according to the outer sides 89, 90 of the engaging parts 87, 88, so that during the pressing operation, the engaging parts 87, 88 and the levers 3, 4 of the pressing ring 1 can reliably perform the required relative movements to each other.
- the arms 85, 86 of the levers 77, 78 are provided at their free ends with in the direction of the tabs 79, 80 converging inclined inner sides 91, 92. With them act (not shown) roles together, which are provided on an extendable (not shown) plunger of a drive 93.
- the drive 93 is known and therefore not described in detail.
- the drive 93 is connected to connecting lugs 94, 95, which protrude from the tabs 79, 80 in half width in the direction of the drive 93.
- the connection tabs 94, 95 are each provided with an opening 96 through which a bolt 97 (after Fig. 5 ) can be plugged to connect the drive 93 with the intermediate pliers 34.
- the pressing jaws 41, 42 approach the pressing jaw 40 until all the pressing jaws lie against one another and the pressing contours 43 to 45 form a closed circle in the axial view. Then the radial pressing process is completed and the inserted workpiece is pressed.
- the required pivoting movement of the pressing jaws 41, 42 relative to the levers 3, 4 is ensured by the fact that in the starting position the outer sides 65, 67 of the pressing jaws 41, 42 have sufficient distance to the inner sides 57, 58 of the levers 3, 4 Fig. 1 ).
- the pivotable mounting of the pressing jaws 41, 42 is achieved that the workpiece is radially compressed over its entire circumference without a burr on the workpiece.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Automatic Assembly (AREA)
Description
Die Erfindung betrifft einen Pressring nach dem Oberbegriff des Anspruches 1.The invention relates to a press ring according to the preamble of
Es ist bekannt, Rohre über Fittinge miteinander zu verbinden. Die auf die Rohrenden aufgesetzten Fittinge werden bei entsprechend kleinen Durchmessern mittels einer Presszange radial verpresst. Ist der Durchmesser der Fittinge jedoch größer, kann mit einer Presszange eine zuverlässige Radialverpressung nicht mehr erreicht werden. In diesem Falle werden Pressringe eingesetzt, die einen Träger und zwei gelenkig mit ihnen verbundene Hebel aufweisen, die jeweils Pressbacken tragen. Die Pressbacken werden um das zu verpressende Werkstück gelegt. Anschließend werden die beiden Hebel gegenüber dem Träger so geschwenkt, dass die Pressbacken das eingelegte Werkstück radial verpressen. Da die Pressbacken starr mit dem Träger und den Hebeln verbunden sind, kann es beim Pressvorgang vorkommen, dass am Umfang des verpressten Werkstückes Grate gebildet werden.It is known to connect pipes via fittings with each other. The fittings placed on the pipe ends are pressed radially at correspondingly small diameters by means of pressing tongs. However, if the diameter of the fittings is larger, a reliable radial compression can no longer be achieved with crimping pliers. In this case, compression rings are used which have a carrier and two levers pivotally connected to them, each carrying the pressing jaws. The pressing jaws are placed around the workpiece to be pressed. Subsequently, the two levers are pivoted relative to the carrier so that the pressing jaws radially compress the inserted workpiece. Since the pressing jaws are rigidly connected to the carrier and the levers, it may happen during the pressing process that burrs are formed on the circumference of the pressed workpiece.
Der bekannte Pressring (
Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Pressring so auszubilden, dass die Werkstücke einwandfrei radial verpresst werden.The invention has the object of providing the generic press ring in such a way that the workpieces are properly pressed radially.
Diese Aufgabe wird beim gattungsgemäßen Pressring erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention in the generic press ring with the features of
Beim erfindungsgemäßen Pressring ist zumindest die eine Pressbacke schwenkbar auf einen Vorsprung der Hebel gelagert. Der Vorsprung steht von der Innenseite der Hebel ab. Dadurch kann diese Pressbacke relativ zum Träger oder zum jeweiligen Hebel beim Pressvorgang schwenken. Dadurch ist gewährleistet, dass sich die drei Pressbacken einwandfrei um das Werkstück legen, so dass ein gratfreier Radialpressvorgang sichergestellt ist. Vorteilhaft sind beide Hebel mit jeweils einer schwenkbar an ihnen gelagerten Pressbacke versehen, so dass die Werkstücke einwandfrei radial verpresst werden. Die Zange stellt sicher, dass die beiden Hebel mittels der Eingriffsteile während des Pressvorganges über ihren Umfang gleichmäßig verpresst werden können. Der Pressring und die Zange werden vorteilhaft im Sanitärbereich eingesetzt, um Rohre mittels Fittinge miteinander zu verbinden.When pressing ring according to the invention at least one pressing jaw is pivotally mounted on a projection of the lever. The projection is from the inside of the lever. As a result, this pressing jaw can pivot relative to the carrier or to the respective lever during the pressing process. This ensures that the three pressing jaws are properly wrapped around the workpiece so that a burr-free radial pressing process is ensured. Advantageously, both levers are each provided with a clamping jaw pivotally mounted on them, so that the workpieces are pressed radially correctly. The pliers ensure that the two levers can be pressed evenly over their circumference by means of the engaging parts during the pressing process. The pressing ring and the pliers are advantageously used in the sanitary area to connect pipes by means of fittings with each other.
Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention will become apparent from the other claims, the description and the drawings.
Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen
- Fig. 1
- in Seitenansicht einen erfindungsgemäßen Pressring,
- Fig. 2
- eine Ansicht in Richtung des Pfeiles II in
Fig. 1 , - Fig. 3
- den erfindungsgemäßen Pressring in perspektivischer Darstellung,
- Fig. 4
- in Seitenansicht den erfindungsgemäßen Pressring mit einer Zwischenzange und einem Teil eines Antriebes für die Zwischenzange,
- Fig. 5
- eine Draufsicht auf die Anordnung gemäß
Fig. 4 .
- Fig. 1
- in side view a press ring according to the invention,
- Fig. 2
- a view in the direction of the arrow II in
Fig. 1 . - Fig. 3
- the pressing ring according to the invention in a perspective view,
- Fig. 4
- in side view of the press ring according to the invention with an intermediate pliers and a part of a drive for the intermediate pliers,
- Fig. 5
- a plan view of the arrangement according to
Fig. 4 ,
Mit dem im Folgenden beschriebenen Pressring lassen sich Rohre und Fittinge radial verpressen, insbesondere wenn sie einen größeren Durchmesser haben. In den Zeichnungen ist der Pressring 1 in einer Lage dargestellt, in der seine Pressbacken 40 bis 42 am noch nicht radial verpressten Werkstück anliegen. Das Werkstück ist in den Zeichnungen der Übersichtlichkeit wegen jedoch nicht dargestellt. Der Pressring 1 hat einen Träger 2, der als Bügel ausgebildet ist, an dessen freie Enden jeweils ein Hebel 3, 4 angelenkt ist. Die beiden Hebel 3, 4 sind gleich ausgebildet und über jeweils eine Achse 5, 6 schwenkbar mit den freien Enden des Bügels 2 verbunden. Die parallel zueinander liegenden Achsen 5, 6 sind an einem Ende mit einem verbreiterten Kopf 7 versehen, der an der ebenen Seitenfläche 8 des Bügels 2 anliegt. Auf dem über die gegenüberliegende ebene Seitenfläche 9 des Bügels 2 geringfügig vorstehenden Ende der Achsen 5, 6 ist jeweils ein Sicherungsring 10, 11 aufgesetzt, mit dem die Achse 5, 6 axial gesichert wird.With the press ring described below, pipes and fittings can be radially compressed, especially if they have a larger diameter. In the drawings, the
Der Bügel 2 erstreckt sich etwa über einen Winkelbereich von etwa 180°. An beiden Enden ist der Bügel 2 mit einer mittigen Vertiefung 12 versehen, in die der Hebel 3, 4 mit einem schmalen Vorsprung 13, 14 eingreift. Die Vorsprünge 13, 14 haben zueinander parallele ebene Seitenflächen 15, 16, mit denen sie flächig an den einander zugewandten ebenen Innenseiten 17, 18 der Vertiefungen 12 anliegen. Während des Pressvorganges, bei dem die Hebel 3, 4 um die Achsen 5, 6 gegenüber dem Bügel 2 schwenken, sind die Hebel 3, 4 auf diese Weise einwandfrei geführt, so dass der Pressvorgang mit hoher Präzision durchgeführt werden kann. Die Achsen 5, 6 durchsetzen die Vorsprünge 13, 14 der Hebel 3, 4 mittig. Die Vorsprünge 13, 14 sind so ausgebildet, dass sie in jeder Schwenklage der Hebel 3, 4 nicht über die gekrümmte Außenseite 19 des Bügels 2 vorstehen. Die freien Enden der Vorsprünge 13, 14 sind vorteilhaft abgerundet und so in den Vertiefungen 12 angeordnet, dass die Hebel 3, 4 problemlos gegenüber dem Bügel 2 schwenken können.The
Die Hebel 3, 4 haben im Bereich außerhalb des Vorsprunges 13, 14 gleiche Querschnittsdicke. In Richtung auf ihre freien Enden verbreitern sich die Hebel 3, 4. Die Seitenflächen 20, 21 und 22, 23 der Hebel 3, 4 sind jeweils eben und liegen in der gleichen Ebene wie die Seitenflächen 8, 9 des Bügels 2 (
Wie
Die Hebel 3, 4 haben jeweils eine gekrümmte Außenseite 30, 31, welche die Seitenflächen 20, 21 und 22, 23 der Hebel 3, 4 verbindet. In den Außenseiten 30, 31 ist jeweils eine als Vertiefung gebildete Aufnahme 32, 33 vorgesehen, in die beim Pressvorgang eine Zwischenzange 34 (
Wie
Zum Verpressen des Werkstückes sind drei Pressbacken 40 bis 42 vorgesehen, die in Achsrichtung des Pressringes 1 gesehen, jeweils eine teilkreisförmige Presskontur 43 bis 45 aufweisen. Die Pressbacken 40 bis 42 sind so ausgebildet, dass sie am Ende des Pressvorganges aneinanderliegen, wobei die Presskonturen 43 bis 45, in Achsrichtung des Pressringes 1 gesehen, einen geschlossenen Kreis bilden.For pressing the workpiece, three
Die Pressbacke 40 ist am Bügel 2 mittels einer Achse 46 befestigt. Sie ragt mit ihren beiden Enden über die Pressbacke 40 und ist durch jeweils einen Sicherungsring 47, 48 axial gesichert.The
Die Pressbacke 40 ist in Ansicht gemäß
Die beiden anderen Pressbacken 41, 42 sind beweglich an den Hebeln 3, 4 vorgesehen und gleich ausgebildet. Die Hebel 3, 4 haben zur Anlenkung der Pressbacken 41, 42 jeweils einen schmalen Vorsprung 55, 56 (
Die Pressbacken 41, 42 haben wie die Pressbacke 40 V-förmig zueinander liegende ebene Außenseiten 64, 65 und 66, 67, die bogenförmig ineinander übergehen. Im Übergangsbereich ist die Achse 59, 60 vorgesehen. Die Außenseiten 64, 65 und 66, 67 gehen über einen in Ansicht teilkreisförmigen Abschnitt 68, 69 ineinander über. In den Innenseiten 57, 58 der Hebel 3, 4 ist eine Vertiefung 70, 71 vorgesehen, deren Boden gleichen Krümmungsradius wie die Außenseitenabschnitte 68, 69 der Pressbacken 41, 42 haben. Sie liegen mit diesen Außenseitenabschnitten 68, 69 flächig am Boden der Vertiefungen 70, 71 an. Die Krümmungsachse der Außenseitenabschnitte 68, 69 sowie des Bodens der Vertiefungen 70, 71 wird durch die Längsmittellinie 73, 73' der Achsen 59, 60 gebildet.The
Wie sich aus
Die Innenseite 72 des Bügels 2 ist im Bereich des einen Schenkels 74, 74' der Pressbacken 41, 42 so weit zurückgesetzt, dass die Pressbacken 41, 42 lediglich mit dem freien Ende ihrer Schenkel 74, 74' an der Innenseite 72 des Bügels 2 vor dem Pressvorgang anliegen. Von den Innenseiten 57, 58 der Hebel 3, 4 haben die Pressbacken 41, 42 etwa vom Bereich ihrer Achsen 59, 60 ausgehend Abstand.The
Die Pressbacken 40 bis 42 sind so ausgebildet, dass sie seitlich nicht über die Seitenflächen 8, 9 des Bügels 2 sowie die Seitenflächen 20 bis 23 der Hebel 3, 4 vorstehen.The
Um die Handhabung des Pressringes 1 zu erleichtern, sind die Hebel 3, 4 nach innen federbelastet, so dass die Pressbacken 40 bis 42 bei eingelegtem, noch nicht verpressten Werkstück ihre in
Dadurch lässt sich die Zwischenzange 34 problemlos an den Pressring 1 mit dem eingelegten Werkstück anschließen. Wie
Die Arme 85, 86 der Hebel 77, 78 sind an ihren freien Enden mit in Richtung auf die Laschen 79, 80 konvergierend verlaufenden schrägen Innenseiten 91, 92 versehen. Mit ihnen wirken (nicht dargestellte) Rollen zusammen, die an einem ausfahrbaren (nicht dargestellten) Stößel eines Antriebes 93 vorgesehen sind. Der Antrieb 93 ist bekannt und wird darum auch nicht im Einzelnen beschrieben. Der Antrieb 93 wird an Anschlusslaschen 94, 95 angeschlossen, die von den Laschen 79, 80 in halber Breite in Richtung auf den Antrieb 93 abstehen. Die Anschlusslaschen 94, 95 sind mit jeweils einer Öffnung 96 versehen, durch die ein Bolzen 97 (nach
Nachdem die Zwischenzange 34 mit ihren Eingriffsteilen 87, 88 in die Aufnahmen 32, 33 des Pressringes 1 eingesetzt und der Antrieb 93 an die Anschlusslaschen 94, 95 angeschlossen ist, wird der Stößel mit den Rollen des Antriebes 93 ausgefahren. Die Rollen gelangen auf die schrägen Innenseiten 91, 92 und drücken dadurch die Arme 85, 86 auseinander. Dies hat zur Folge, dass die Arme 83, 84 in Richtung zueinander geschwenkt werden, wobei ihre Eingriffsteile 87, 88 die beiden Hebel 3, 4 gegenüber dem Bügel 2 in Richtung zueinander um die Achsen 5, 6 schwenken. Die Hebel 3, 4 nehmen die Pressbacken 41, 42 mit, die bei der Schwenkbewegung der Hebel 3, 4 relativ zu den Hebeln 3, 4 geschwenkt werden. Die Pressbacken 41, 42 nähern sich der Pressbacke 40, bis alle Pressbacken aneinanderliegen und die Presskonturen 43 bis 45 in Achsansicht einen geschlossenen Kreis bilden. Dann ist der Radialpressvorgang abgeschlossen und das eingelegte Werkstück verpresst. Die erforderliche Verschwenkbewegung der Pressbacken 41, 42 relativ zu den Hebeln 3, 4 ist dadurch gewährleistet, dass in der Ausgangslage die Außenseiten 65, 67 der Pressbacken 41, 42 ausreichenden Abstand zu den Innenseiten 57, 58 der Hebel 3, 4 haben (
Wenn der Pressvorgang abgeschlossen ist, wird der Stößel des Antriebes 93 zurückgefahren. Die Arme 83, 84 sind in der beschriebenen Weise so gegeneinander federbelastet, dass sie entgegengesetzt zueinander schwenken und dadurch die Hebel 3, 4 des Pressringes 1 wieder zurück in die in
Claims (11)
- Crimping ring for the radial crimping of workpieces, such as pipes and fittings, with a carrier (2) on which two levers (3, 4) are hinged, and with three crimping jaws (40 to 42) which are provided on the carrier (2) and on the levers (3, 4) and of which at least one crimping jaw (40 to 42) is pivotally mounted,
characterised in that the pivotable crimping jaw (41, 42) is mounted on a protrusion (55, 56) of the levers (3, 4) which protrudes from the inside (57, 58) of the levers (3, 4). - Crimping ring according to claim 1,
characterised in that each lever (3, 4) is provided with a pivotably mounted crimping jaw (41, 42). - Crimping ring according to claim 1 or 2,
characterised in that one of the crimping jaws (40 to 42) is held rigidly on the carrier (2), in that the crimping jaws (40 to 42) are designed identically and in that the crimping jaws (40 to 42) have a U-shaped cross-section at least over part of their length and are preferably at a distance from each other before the crimping procedure. - Crimping ring according to any one of claims 1 to 3, characterised in that the carrier (2) is bow-shaped, in that on its ends the levers (3, 4) are hinged and in that preferably the carrier (2) is provided at each of its ends with a recess (12) into which a protrusion (13, 14) of the levers (3, 4) engages which is in contact with the inner sides (17, 18) of the recesses (12).
- Crimping ring according to any one of claims 1 to 4, characterised in that the levers (3, 4) close to their free ends are each provided with a receptacle (32, 33) for intermediate pliers (34) and in that advantageously the receptacle (32, 33) has guide surfaces (37, 38), which converge inwards into the receptacle, and adjoins a preferably partially cylindrical active surface (39).
- Crimping ring according to claim 5,
characterised in that at least one side wall (21, 22) of the receptacle (32, 33) is provided with a through opening (35, 36). - Crimping ring according to any one of claims 1 to 6, characterised in that the end faces (24, 25) of the levers(3, 4) facing each other are flat.
- Crimping ring according to any one of claims 1 to 7, characterised in that the crimping jaws (40 to 42) are V-shaped and in that the pivoting axis (59, 60) of the crimping jaw (41, 42) lies in the tip of the V.
- Crimping ring according to any one of claims 1 to 8, characterised in that the crimping jaws (40 to 42) are supported on the inner side (72) of the carrier (2) before the crimping process and in that advantageously with the free end of its one arm (74, 74') the pivotable crimping jaw (41, 42) is in contact on the inner side (72) of the carrier (2) before the crimping process.
- Crimping ring according to any one of claims 1 to 9, characterised in that the crimping jaws (40 to 42) are of the same thickness as the carrier (2) and levers (3, 4), which advantageously have face ends (8, 9; 20 to 23) lying in a common plane.
- Crimping ring according to any one of claims 1 to 10, characterised in that the side faces of the crimping jaws (40 to 42) and the side faces (8, 9; 20 to 23) of at least the carrier (2), preferably also of the levers (3, 4), lie in a common plane and in that the levers (3, 4) preferably widen in the direction to their free end.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810005854 DE102008005854A1 (en) | 2008-01-16 | 2008-01-16 | Press ring and pliers for use with such a press ring |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2080592A1 EP2080592A1 (en) | 2009-07-22 |
EP2080592B1 true EP2080592B1 (en) | 2018-10-24 |
Family
ID=40514002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09000263.5A Expired - Fee Related EP2080592B1 (en) | 2008-01-16 | 2009-01-10 | Crimping ring |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2080592B1 (en) |
DE (1) | DE102008005854A1 (en) |
ES (1) | ES2705622T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009059053A1 (en) * | 2009-12-15 | 2011-06-16 | REMS-WERK Christian Föll und Söhne GmbH | Pressing tool for the radial compression of workpieces and tool with at least two relatively movable tool parts |
DE202010000402U1 (en) | 2010-03-18 | 2010-07-01 | Joiner's Bench Gmbh | Pressing device with a simplified structure |
KR101034454B1 (en) * | 2010-07-29 | 2011-05-17 | 김광찬 | Apparatus for press-connecting pipes |
KR101575896B1 (en) * | 2014-06-09 | 2015-12-08 | 주식회사 서원기술 | A connecting device for piping works |
DE102014115358A1 (en) * | 2014-10-22 | 2016-04-28 | Michael Schmitz | press tool |
DE202021102613U1 (en) | 2021-05-12 | 2022-08-18 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft | Press ring, press tool and adapter elements |
DE102023100782B3 (en) | 2023-01-13 | 2024-05-02 | Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft | Press tool |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19734355C2 (en) * | 1997-08-08 | 2002-08-14 | Uponor Rohrsysteme Gmbh | press tool |
DE10257613A1 (en) * | 2001-12-08 | 2003-06-18 | Klauke Gmbh Gustav | Pipe and fitting joining press uses opposing press elements to apply closing force to joint via knee lever linkages and additional press elements. |
US6923037B2 (en) * | 2002-06-17 | 2005-08-02 | Emerson Electric Co. | Assembly for articulating crimp ring and actuator |
JP2008521612A (en) * | 2004-11-24 | 2008-06-26 | エマーソン エレクトリック カンパニー | Multi-stage press forming tube clamp connection |
DE202005008125U1 (en) * | 2005-05-24 | 2006-10-05 | Herrle, Richard | Pressing tool, press ring and pressing tongs |
WO2007038308A1 (en) * | 2005-09-23 | 2007-04-05 | Bruns Daniel Kidd | Tool to crimp non-metallic tubing onto fittings |
DE102006050427A1 (en) * | 2006-08-22 | 2008-02-28 | Gustav Klauke Gmbh | Method for pressing a press fitting and pressing tool for this purpose |
DE102007013706B3 (en) * | 2007-03-22 | 2008-11-13 | Rothenberger Ag | Pressing device for tubular workpieces |
-
2008
- 2008-01-16 DE DE200810005854 patent/DE102008005854A1/en not_active Ceased
-
2009
- 2009-01-10 EP EP09000263.5A patent/EP2080592B1/en not_active Expired - Fee Related
- 2009-01-10 ES ES09000263T patent/ES2705622T3/en active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
DE102008005854A1 (en) | 2009-07-23 |
ES2705622T3 (en) | 2019-03-26 |
EP2080592A1 (en) | 2009-07-22 |
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