EP2027971A2 - Press clamp for radial pressing of pipes, pipe sections and similar - Google Patents
Press clamp for radial pressing of pipes, pipe sections and similar Download PDFInfo
- Publication number
- EP2027971A2 EP2027971A2 EP08014576A EP08014576A EP2027971A2 EP 2027971 A2 EP2027971 A2 EP 2027971A2 EP 08014576 A EP08014576 A EP 08014576A EP 08014576 A EP08014576 A EP 08014576A EP 2027971 A2 EP2027971 A2 EP 2027971A2
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- EP
- European Patent Office
- Prior art keywords
- guide elements
- pressing
- teeth
- crimping pliers
- pressing 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.)
- Granted
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 104
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 238000002788 crimping Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
Definitions
- the invention relates to a pressing tongs for the radial compression of pipes, pipe sections and the like according to the preamble of claim 1.
- Press tongs have against each other pivotable pressing jaws, which are provided at one end in each case with a receptacle for the workpiece to be pressed.
- By closing the pressing tongs lying in the receptacles workpiece is radially compressed. So that the workpieces can be inserted into the receptacles of the pressing jaws or the pressing tongs can be placed on the workpiece to be pressed, the pressing jaws must be pivoted relatively far against each other.
- axial displacements of the two pressing jaws in the direction of their pivot axes can then occur, as a result of which the quality of the pressing can be impaired.
- the invention has for its object to form the generic pressing tongs so that with her the workpieces can be easily pressed with high press quality.
- the two pressing jaws are provided with the guide elements. They ensure that the two pressing jaws in the axial direction of the pivot axis over at least the largest part of the pivoting path can not be moved relative to each other.
- the Both press jaws thereby retain their axial position with respect to the pivot axis during the entire pressing process, since they are guided by the guide elements. In this way, a perfect compression of the workpieces is guaranteed, so that there is a very high press quality.
- the guide elements are teeth with which the pressing jaws engage each other.
- the end faces of the guide elements facing the receptacle are flat and lie in a common plane.
- This common plane is advantageously parallel to a radial plane passing through the deepest part of the receptacle.
- the pressing jaws can have teeth on the other side of the receptacle whose end faces facing the receptacle are also advantageously flat and lie in a common plane. This plane is also advantageous parallel to the radial plane of the recording.
- the guide elements of the pressing jaws thus have a double function in that on the one hand they prevent an axial displacement of the pressing jaws relative to one another and, on the other hand, form closed side faces during closing of the pressing jaws, by which lateral pushing away of material of the workpiece to be pressed is prevented.
- the crimping tool is used to radially compress fittings with which pipes can be connected to each other.
- the pressing tongs has two pressing jaws 1, 2 which are pivotable relative to one another and which are of the same design but are arranged rotated through 180 ° with respect to one another.
- Both pressing jaws 1, 2 are designed as two-armed levers which are pivotable about mutually parallel axes 3, 4. They are formed by screws, with which the pressing jaws 1, 2 are pivotally mounted between two tabs 5, 6. They have approximately quadrangular outline and are located on the opposite outer sides of the two pressing jaws 1, 2 at.
- the two tabs 5, 6 are advantageously the same design and provided on its one longitudinal side with a rounded recess 7, 8. It lies approximately half the length of the longitudinal side of the tabs 5, 6.
- a connecting tab 9, 10 from, the rectangular Outline has and is provided with an opening 11, 12.
- a (not shown) driving device can be connected, with which the pressing jaws 1, 2 can be pivoted in a manner to be described for the pressing operation against each other.
- the drive device is connected to a connecting bolt, which is inserted into the openings 11, 12 of the connecting lugs 9, 10, with the pressing tongs.
- This drive device can be driven, for example, hydraulically, pneumatically or by electric motor.
- the pressing jaws 1, 2 are, as in the 4 and 6 is shown for the pressing jaw 1, provided with a passage opening 13 through which the pivot axis 3 and 4 forming bolts is inserted, with which the pressing jaws 1, 2 are pivotally mounted between the tabs 5, 6.
- Each pressing jaw 1, 2 has the arms 14, 15 and 16, 17.
- the arms 14, 16 are tapered towards their free end.
- the arms 14, 16 have mutually facing flat inner surfaces 18, 19, the functional surfaces form, with which cooperates with the abutting connecting plates 9, 10 drive device during the pressing process.
- This drive device has an extendable plunger, at the end of which the pressing pliers facing the rollers are rotatably mounted, which reach the inner surfaces 18, 19 of the pressing jaws 1, 2 during extension of the plunger.
- the arms 14, 16 are pressed apart by the rollers, whereby the arms 15, 17 of the pressing jaws 1, 2 are pivoted in the direction of each other.
- the two arms 14, 16 by a (not shown) pressure spring loaded so that the arms 15, 17 in the direction of their in the Fig. 1 to 3 shown closed position are charged. This ensures that the crimping pliers are closed.
- the compression spring in the pressing tongs so that the two arms 15, 17 are pressure-loaded, so that the pressing tongs is always open. The workpieces to be pressed can then be easily inserted between the two arms 15, 17.
- the free ends of the arms 14, 16 are each provided with a connection 20, 21, which is advantageously designed as a passage opening.
- a manual drive device by means of a bolt or the like. Be connected.
- the manual drive device is designed in the manner of a pair of pliers and has two mutually pivotable two-armed lever.
- the short lever arms are connected to the terminals 20, 21, while the longer lever arms serve as operating arms. Since such manual drive devices are known, they are not explained in detail.
- the pressing tongs is thus designed so that either a driven or a manual drive device can be connected to them.
- the driven drive device is connected to the terminal lugs 9, 10 and the manual drive device to the terminals 20, 21.
- the arm 15 of the pressing jaw 1 is provided with a semicircular recess 22 which is bounded by a semicircular bottom 23. It extends over the width of the pressing jaw 1 and is semi-cylindrical. Depending on the pressing contour of the bottom 23 may also have a different shape, such as polygonal shape.
- the bottom 23 extends over an angular range of slightly smaller than 180 °. At both ends of the bottom 23 connects to planar side surfaces 24, 25, which are formed by the facing end faces of teeth 26, 27.
- the side surfaces 24, 25 are parallel to each other and parallel to a radial plane 28 which extends through the lowest point of the bottom 23 ( Fig. 4 ).
- the side surfaces 24, 25 extend beyond the axis of curvature 29 of the bottom 23.
- the teeth 26, 27 are aligned with each other.
- the teeth 26 are shorter than the teeth 27 and extend to the end face 30 of the pressing jaw 1.
- gaps 31, 32 are formed, in which engage the teeth 26, 27 of the pressing jaw 2.
- the interspaces 31, 32 are formed so that the teeth 26, 27 of the pressing jaws 1, 2 in the closed position with their side surfaces abut each other.
- the teeth 27 have a length such that these teeth even at maximum open pressing tongs ( Fig. 1 to 3 ) are not disengaged.
- the teeth 27, at least in their rear region form guide elements which ensure that the pressing jaws 1, 2 are exactly aligned with each other in each position, so that during the subsequent pressing operation no relative displacement of the pressing jaws 1, 2 in the direction of their pivot axes 3, 4 he follows. In this way it is ensured that the compression of the workpiece is flawless.
- the teeth 26, 27 advantageously have a rectangular cross-section, so that the teeth of the pressing jaws 1, 2 lie flat against one another over their entire height in the engaged position.
- the teeth 26, 27 of the two pressing jaws 1, 2 abut against the bottom 33, 34 of the intermediate spaces 31, 32.
- the pressing jaws 1, 2 surround the workpiece to be pressed over 180 °.
- the side surfaces 24, 25 of the teeth 26, 27 of the two pressing jaws 1, 2 each lie in a common plane, which runs parallel to the radial plane 28. Since the teeth 26, 27 of the two pressing jaws 1, 2 completely engage one another in this closed position of the pressing tongs and the width of the teeth corresponds to the width of the intermediate spaces 31, 32, a continuous side surface 24, 25 is formed.
- the pressed workpiece has a flawless, burr-free surface after the pressing process.
- the pressing jaw 1 is provided in the region of the arm 14 with a blind hole 35 into which one end of the Compressive spring is used, with which the two pressing jaws 1, 2 are loaded against each other.
- the pivoting of the pressing jaws 1, 2 is not very large, a relatively small length of the inner surface 18 is sufficient. It lies at an obtuse angle to a plane 36 containing the upper side of the teeth 26, 27 (FIG. Fig. 4 ). As a result, the pressing jaws 1, 2 can be made very compact, so that the pressing tongs are handy and have only low weight.
- To the inner surface 18 includes a part-circular recess 37, which connects the inner surface 18 with an inclined surface 38. In her is the blind hole 35th As is clear from the 4 to 6
- the inclined surface 38 is also at an obtuse angle to the plane 36.
- the inclined surface 38 may lie with the inner surface 18 in a common plane. In the exemplary embodiment, however, the inclined surface 38 is arranged offset relative to the inner surface 18 in the direction of the plane 36.
- the facing away from the recess 22 end face 39 of the teeth 27 is chamfered and is advantageously in the inclined surface 38.
- the engagement region of the teeth 27 is at the level of the tabs 5, 6, seen in Schwenkachscardi, thus covered by the tabs.
- the pressing tongs are characterized as a result of the training described by the fact that with her flawless, non-degree pressings are possible, the pressing tongs being characterized by a compact design and a low weight.
- the pressing tongs can be connected by the user either to a manual or to a driven drive device. This allows the pressing tongs to be used variably by the user. Since the two pressing jaws 1, 2 and also the tabs 5, 6 with the connecting lugs 9, 10 are each formed the same, is also a cost-effective production possible. The assembly of the pressing tongs is therefore very easy.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Press Drives And Press Lines (AREA)
- Table Equipment (AREA)
Abstract
Description
Die Erfindung betrifft eine Presszange zum radialen Verpressen von Rohren, Rohrstücken und dergleichen nach dem Oberbegriff des Anspruches 1.The invention relates to a pressing tongs for the radial compression of pipes, pipe sections and the like according to the preamble of claim 1.
Presszangen haben gegeneinander verschwenkbare Pressbacken, die an einem Ende jeweils mit einer Aufnahme für das zu verpressende Werkstück versehen sind. Durch Schließen der Presszange wird das in den Aufnahmen liegende Werkstück radial verpresst. Damit die Werkstücke in die Aufnahmen der Pressbacken eingelegt oder die Presszange auf das zu verpressende Werkstück aufgesetzt werden können, müssen die Pressbacken verhältnismäßig weit gegeneinander geschwenkt werden. Beim Schließen der Presszange kann es dann zu Axialverschiebungen der beiden Pressbacken in Richtung ihrer Schwenkachsen kommen, wodurch die Qualität der Verpressung beeinträchtigt werden kann.Press tongs have against each other pivotable pressing jaws, which are provided at one end in each case with a receptacle for the workpiece to be pressed. By closing the pressing tongs lying in the receptacles workpiece is radially compressed. So that the workpieces can be inserted into the receptacles of the pressing jaws or the pressing tongs can be placed on the workpiece to be pressed, the pressing jaws must be pivoted relatively far against each other. When closing the pressing tongs, axial displacements of the two pressing jaws in the direction of their pivot axes can then occur, as a result of which the quality of the pressing can be impaired.
Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Presszange so auszubilden, dass mit ihr die Werkstücke mit hoher Pressqualität einfach verpresst werden können.The invention has for its object to form the generic pressing tongs so that with her the workpieces can be easily pressed with high press quality.
Diese Aufgabe wird bei der gattungsgemäßen Presszange erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention in the generic pressing tongs with the characterizing features of claim 1.
Bei der erfindungsgemäßen Presszange sind die beiden Pressbacken mit den Führungselementen versehen. Sie sorgen dafür, dass die beiden Pressbacken in Achsrichtung der Schwenkachse über zumindest den größten Teil des Schwenkweges nicht relativ zueinander verschoben werden können. Die beiden Pressbacken behalten dadurch während des gesamten Pressvorganges ihre axiale Lage bezüglich der Schwenkachse bei, da sie durch die Führungselemente geführt sind. Auf diese Weise ist eine einwandfreie Verpressung der Werkstücke gewährleistet, so dass sich eine sehr hohe Pressqualität ergibt.In the pressing tongs according to the invention, the two pressing jaws are provided with the guide elements. They ensure that the two pressing jaws in the axial direction of the pivot axis over at least the largest part of the pivoting path can not be moved relative to each other. The Both press jaws thereby retain their axial position with respect to the pivot axis during the entire pressing process, since they are guided by the guide elements. In this way, a perfect compression of the workpieces is guaranteed, so that there is a very high press quality.
Vorteilhaft sind die Führungselemente Zähne, mit denen die Pressbacken miteinander in Eingriff kommen.Advantageously, the guide elements are teeth with which the pressing jaws engage each other.
Vorteilhaft sind die der Aufnahme zugewandten Stirnseiten der Führungselemente eben und liegen in einer gemeinsamen Ebene. Diese gemeinsame Ebene verläuft vorteilhaft parallel zu einer Radialebene, die durch den tiefsten Teil der Aufnahme verläuft.Advantageously, the end faces of the guide elements facing the receptacle are flat and lie in a common plane. This common plane is advantageously parallel to a radial plane passing through the deepest part of the receptacle.
Die Pressbacken können an der anderen Seite der Aufnahme Zähne aufweisen, deren der Aufnahme zugewandte Stirnseiten ebenfalls vorteilhaft eben sind und in einer gemeinsamen Ebene liegen. Auch diese Ebene liegt vorteilhaft parallel zur Radialebene der Aufnahme.The pressing jaws can have teeth on the other side of the receptacle whose end faces facing the receptacle are also advantageously flat and lie in a common plane. This plane is also advantageous parallel to the radial plane of the recording.
Durch diese Ausbildung wird in vorteilhafter Weise erreicht, dass bei geschlossener Presszange die Stirnseiten der Zähne und der Führungselemente zu beiden Seiten der Aufnahme eine geschlossene, ebene Fläche bilden. Dadurch wird verhindert, dass Material des zu verpressenden Werkstückes beim Pressvorgang nach außen gedrückt wird und unerwünschte Grate bildet.By this design is achieved in an advantageous manner that form the closed ends of the teeth and the guide elements on both sides of the recording a closed, flat surface with closed pressing tongs. This prevents the material of the workpiece to be pressed from being pressed outwards during the pressing process and forms undesirable burrs.
Die Führungselemente der Pressbacken haben somit eine Doppelfunktion, indem sie zum einen eine Axialverschiebung der Pressbacken zueinander verhindern und zum anderen beim Schließen der Presszange geschlossene ebene Seitenflächen bilden, durch die ein seitliches Wegdrücken von Material des zu verpressenden Werkstückes verhindert wird.The guide elements of the pressing jaws thus have a double function in that on the one hand they prevent an axial displacement of the pressing jaws relative to one another and, on the other hand, form closed side faces during closing of the pressing jaws, by which lateral pushing away of material of the workpiece to be pressed is prevented.
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 nachstehend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen
- Fig. 1
- in perspektivischer Darstellung eine erfindungsgemäße Presszange,
- Fig. 2
- in einer anderen perspektivischen Darstellung die erfindungsgemäße Presszange,
- Fig. 3
- eine Stirnansicht der erfindungsgemäßen Presszange,
- Fig. 4
- eine Seitenansicht einer Pressbacke der erfindungsgemäßen Presszange,
- Fig. 5
- eine Draufsicht auf die Pressbacke gemäß
Fig. 4 , - Fig. 6
- eine perspektivische Darstellung der Pressbacke gemäß
Fig.4 .
- Fig. 1
- in a perspective view of a pressing tongs according to the invention,
- Fig. 2
- in another perspective view of the pressing tongs according to the invention,
- Fig. 3
- an end view of the pressing tongs according to the invention,
- Fig. 4
- a side view of a pressing jaw of the pressing tongs according to the invention,
- Fig. 5
- a plan view of the pressing jaw according to
Fig. 4 . - Fig. 6
- a perspective view of the pressing jaw according to
Figure 4 ,
Die Presszange dient dazu, Fittinge, mit denen Rohre miteinander verbunden werden können, radial zu verpressen. Die Presszange hat zwei gegeneinander verschwenkbare Pressbacken 1, 2, die gleich ausgebildet, jedoch um 180° verdreht zueinander angeordnet sind. Beide Pressbacken 1, 2 sind als zweiarmige Hebel ausgebildet, die um zueinander parallele Achsen 3, 4 schwenkbar sind. Sie werden durch Schrauben gebildet, mit denen die Pressbacken 1, 2 zwischen zwei Laschen 5, 6 schwenkbar gelagert sind. Sie haben etwa viereckigen Umriss und liegen an den voneinander abgewandten Außenseiten der beiden Pressbacken 1, 2 an. Die beiden Laschen 5, 6 sind vorteilhaft gleich ausgebildet und an ihrer einen Längsseite mit einer abgerundeten Vertiefung 7, 8 versehen. Sie liegt etwa in halber Länge der Längsseite der Laschen 5, 6. Von der gegenüberliegenden Längsseite der Laschen 5, 6 steht jeweils eine Anschlusslasche 9, 10 ab, die rechteckigen Umriss hat und mit einer Öffnung 11, 12 versehen ist. An diese Laschen 9, 10 kann eine (nicht dargestellte) Antriebsvorrichtung angeschlossen werden, mit der die Pressbacken 1, 2 in noch zu beschreibender Weise für den Pressvorgang gegeneinander verschwenkt werden können. Die Antriebsvorrichtung wird mit einem Anschlussbolzen, der in die Öffnungen 11, 12 der Anschlusslaschen 9, 10 gesteckt wird, mit der Presszange verbunden. Diese Antriebsvorrichtung kann beispielsweise hydraulisch, pneumatisch oder elektromotorisch angetrieben werden.The crimping tool is used to radially compress fittings with which pipes can be connected to each other. The pressing tongs has two
Die Pressbacken 1, 2 sind, wie dies in den
Die freien Enden der Arme 14, 16 sind jeweils mit einem Anschluss 20, 21 versehen, der vorteilhaft als Durchgangsöffnung ausgebildet ist. An die beiden Anschlüsse 20, 21 kann eine manuelle Antriebsvorrichtung mittels eines Bolzens oder dgl. angeschlossen werden. Die manuelle Antriebsvorrichtung ist nach Art einer Zange ausgebildet und hat zwei gegeneinander schwenkbare zweiarmige Hebel. Die kurzen Hebelarme werden an die Anschlüsse 20, 21 angeschlossen, während die längeren Hebelarme als Betätigungsarme dienen. Da solche manuellen Antriebsvorrichtungen bekannt sind, werden sie auch nicht näher erläutert.The free ends of the
Die Presszange ist somit so ausgebildet, dass an sie wahlweise eine angetrieben oder eine manuelle Antriebsvorrichtung angeschlossen werden können. Die angetriebene Antriebsvorrichtung wird an die Anschlusslaschen 9, 10 und die manuelle Antriebsvorrichtung an die Anschlüsse 20, 21 angeschlossen.The pressing tongs is thus designed so that either a driven or a manual drive device can be connected to them. The driven drive device is connected to the terminal lugs 9, 10 and the manual drive device to the
Da die beiden Pressbacken 1, 2 gleich ausgebildet sind, wird im Folgenden an Hand der
Die Zähne 26, 27 liegen fluchtend zueinander. Die Zähne 26 sind kürzer als die Zähne 27 und erstrecken sich bis zur Stirnseite 30 der Pressbacke 1. Zwischen den Zähnen 26 bzw. 27 werden Zwischenräume 31, 32 gebildet, in welche die Zähne 26, 27 der Pressbacke 2 eingreifen. Die Zwischenräume 31, 32 sind so ausgebildet, dass die Zähne 26, 27 der Pressbacken 1, 2 in der Schließstellung mit ihren Seitenflächen aneinander liegen.The
Die Zähne 27 haben eine solche Länge, dass diese Zähne auch bei maximal geöffneter Presszange (
Die Zähne 26, 27 haben vorteilhaft rechteckigen Querschnitt, so dass die Zähne der Pressbacken 1, 2 in der Eingriffsstellung über ihre gesamte Höhe flächig aneinander liegen.The
Ist die Presszange geschlossen, liegen die Zähne 26, 27 der beiden Pressbacken 1, 2 am Boden 33, 34 der Zwischenräume 31, 32 an. In dieser geschlossenen Stellung umschließen die Pressbacken 1, 2 das zu verpressende Werkstück über 180°. Die Seitenflächen 24, 25 der Zähne 26, 27 beider Pressbacken 1, 2 liegen jeweils in einer gemeinsamen Ebene, die parallel zur Radialebene 28 verläuft. Da die Zähne 26, 27 der beiden Pressbacken 1, 2 in dieser geschlossenen Stellung der Presszange vollständig ineinander greifen und die Breite der Zähne der Breite der Zwischenräume 31, 32 entspricht, wird eine durchgehend geschlossene Seitenfläche 24, 25 gebildet. Dadurch wird verhindert, dass beim Pressvorgang Material des zu verpressenden Werkstückes im Bereich der Zähne 26, 27 der beiden Pressbacken 1, 2 nach außen verdrängt wird und Grate bildet. Das verpresste Werkstück hat nach dem Pressvorgang eine einwandfreie, gratfreie Oberfläche.If the pressing tongs are closed, the
Wie sich aus den
Da der Schwenkweg der Pressbacken 1, 2 nicht sehr groß ist, reicht eine verhältnismäßig kleine Länge der Innenfläche 18 aus. Sie liegt unter einem stumpfen Winkel zu einer die Oberseite der Zähne 26, 27 enthaltenden Ebene 36 (
Die Presszange zeichnet sich infolge der beschriebenen Ausbildung dadurch aus, dass mit ihr einwandfreie, gradfreie Verpressungen möglich sind, wobei die Presszange sich durch eine kompakte Ausbildung und ein nur geringes Gewicht auszeichnet. Dabei kann die Presszange vom Anwender wahlweise an eine manuelle oder an eine angetriebene Antriebsvorrichtung angeschlossen werden. Dadurch lässt sich die Presszange variabel vom Anwender einsetzen. Da die beiden Pressbacken 1, 2 sowie auch die Laschen 5, 6 mit den Anschlusslaschen 9, 10 jeweils gleich ausgebildet sind, ist auch eine kostengünstige Fertigung möglich. Die Montage der Presszange gestaltet sich dadurch auch sehr einfach.The pressing tongs are characterized as a result of the training described by the fact that with her flawless, non-degree pressings are possible, the pressing tongs being characterized by a compact design and a low weight. The pressing tongs can be connected by the user either to a manual or to a driven drive device. This allows the pressing tongs to be used variably by the user. Since the two
Claims (15)
dadurch gekennzeichnet, dass die beiden Pressbacken (1, 2) mit Führungselementen (27) versehen sind, die über zumindest den größten Teil des Schwenkweges zumindest der einen Pressbacke (1, 2) eine Verschiebung der Pressbacke(n) in Richtung der Schwenkachse (3, 4) verhindern.Pressing tongs for the radial compression of pipes, pipe sections and the like, with two pressing jaws (1, 2), which are pivotable relative to each other and each have a receptacle (22) for the workpiece to be pressed,
characterized in that the two pressing jaws (1, 2) are provided with guide elements (27), over at least most of the pivoting path of at least one pressing jaw (1, 2) a displacement of the pressing jaw (s) in the direction of the pivot axis (3 , 4) prevent.
dadurch gekennzeichnet, dass die Führungselemente (27) der Pressbacken (1, 2) Teil von Zähnen sind, und dass die vorzugsweise bis an die Aufnahme (22) sich erstreckenden Führungselemente (27) vorteilhaft über zumindest den größten Teil des Schwenkweges zumindest der einen Pressbacke (1, 2) miteinander in Eingriff sind.Crimping pliers according to claim 1,
characterized in that the guide elements (27) of the pressing jaws (1, 2) are part of teeth, and that preferably up to the receptacle (22) extending guide elements (27) over at least the major part of the pivoting path at least one pressing jaw advantageous (1, 2) are engaged with each other.
dadurch gekennzeichnet, dass die von der Aufnahme (22) abgewandte Stirnseite (39) der Führungselemente (27) abgeschrägt ist und vorteilhaft die der Aufnahme (22) zugewandte Stirnseite (25) der Führungselemente (27) eben ist.Crimping pliers according to one of claims 1 to 2,
characterized in that the front of the receiving (22) facing away from (39) of the guide elements (27) is chamfered and advantageously the receiving (22) facing end face (25) of the guide elements (27) is flat.
dadurch gekennzeichnet, dass die Stirnseiten (25) der Führungselemente (27) in einer gemeinsamen Ebene liegen und vorteilhaft an das eine Ende der Aufnahme (22) anschließen.Crimping pliers according to claim 3,
characterized in that the end faces (25) of the guide elements (27) lie in a common plane and advantageously connect to the one end of the receptacle (22).
dadurch gekennzeichnet, dass die gemeinsame Ebene der Stirnseiten (25) der Führungselemente (27) parallel zu einer Radialebene (28) liegt, die durch den tiefsten Teil der Aufnahme (22) verläuft.Crimping pliers, in particular according to claim 4,
characterized in that the common plane of the end faces (25) of the guide elements (27) is parallel to a radial plane (28) which extends through the deepest part of the receptacle (22).
dadurch gekennzeichnet, dass die Pressbacken (1, 2) auf der den Führungselementen (27) gegenüberliegenden Seite der Aufnahme (22) mit vorteilhaft fluchtend zu den Führungselementen (27) liegenden Zähnen (26) versehen sind, und dass vorteilhaft die den Führungselementen (27) zugewandten Stirnseiten (24) der Zähne (26) eben sind und an das andere Ende der Aufnahme (22) anschließen.Crimping pliers according to one of claims 1 to 5,
characterized in that the pressing jaws (1, 2) on the guide elements (27) opposite side of the receptacle (22) with advantageously aligned with the guide elements (27) lying teeth (26) are provided, and that advantageously the guide elements (27 ) facing end faces (24) of the teeth (26) are flat and connect to the other end of the receptacle (22).
dadurch gekennzeichnet, dass die den Führungselementen (27) zugewandten Stirnseiten (24) der Zähne (26) parallel zur Radialebene (28) der Aufnahme (22) liegen.Crimping pliers, in particular according to claim 6,
characterized in that the guide elements (27) facing end faces (24) of the teeth (26) parallel to the radial plane (28) of the receptacle (22).
dadurch gekennzeichnet, dass sich die Führungselemente (27) und die Zähne (26) über eine die Krümmungsachse (29) der Aufnahme (22) enthaltende Ebene hinaus erstrecken.Crimping pliers according to one of claims 1 to 7,
characterized in that the guide elements (27) and the teeth (26) extend beyond a plane containing the axis of curvature (29) of the receptacle (22).
dadurch gekennzeichnet, dass die Stirnseiten (24, 25) der Zähne (26) und der Führungselemente (27) bei geschlossener Presszange jeweils eine gemeinsame geschlossene ebene Fläche bilden, und dass vorteilhaft die Führungselemente (27) und/oder die Zähne (26) rechteckigen Querschnitt haben.Crimping pliers according to one of claims 1 to 8,
characterized in that the end faces (24, 25) of the teeth (26) and the guide elements (27) each form a common closed flat surface with closed pressing tongs, and that advantageous the guide elements (27) and / or the teeth (26) have a rectangular cross-section.
dadurch gekennzeichnet, dass zwischen den Führungselementen (27) und/oder den Zähnen (26) Zwischenräume (32) gebildet sind.Crimping pliers according to one of claims 1 to 9,
characterized in that between the guide elements (27) and / or the teeth (26) intermediate spaces (32) are formed.
dadurch gekennzeichnet, dass die Führungselemente (27) an ihren von der Aufnahme (22) abgewandten Enden an eine Schrägfläche (38) der Pressbacken (1, 2) anschließen, und dass vorzugsweise die Schrägfläche (38) mit der Oberseite der Führungselemente (27) einen stumpfen Winkel einschließt.Crimping pliers according to one of claims 1 to 10,
characterized in that the guide elements (27) connect at their ends remote from the receptacle (22) to an inclined surface (38) of the pressing jaws (1, 2), and that preferably the inclined surface (38) with the top of the guide elements (27). includes an obtuse angle.
dadurch gekennzeichnet, dass die Führungselemente (27) länger als die Zähne (26) der Pressbacken (1, 2) sind, die vorzugsweise jeweils eine Funktionsfläche (18, 19) aufweisen, die beim Pressvorgang mit einer Antriebsvorrichtung zusammenwirkt und die vorteilhaft die einander zugewandten Innenseiten von Armen (14, 16) der Pressbacken (1, 2) sind.Crimping pliers according to one of claims 1 to 11,
characterized in that the guide elements (27) are longer than the teeth (26) of the pressing jaws (1, 2), which preferably each have a functional surface (18, 19) which cooperates with a drive device during the pressing process and which advantageously facing each other Inner sides of arms (14, 16) of the pressing jaws (1, 2).
dadurch gekennzeichnet, dass die Pressbacken (1, 2) mit einem ersten Anschluss (9, 10) für eine angetriebene Antriebsvorrichtung versehen sind, der vorteilhaft an Laschen (5, 6) vorgesehen ist, zwischen denen die Pressbacken (1, 2) angeordnet sind.Crimping pliers according to one of claims 1 to 12,
characterized in that the pressing jaws (1, 2) are provided with a first connection (9, 10) for a driven drive device, which is advantageously provided on lugs (5, 6), between which the pressing jaws (1, 2) are arranged ,
dadurch gekennzeichnet, dass die Pressbacken (1, 2) mit einem vorzugsweise durch eine Öffnung am freien Ende der Arme (14, 16) der Pressbacken (1, 2) gebildeten zweiten Anschluss (20, 21) für eine manuell betätigbare Antriebsvorrichtung versehen sind, der vorteilhaft am freien Ende der die Funktionsflächen (18, 19) aufweisenden Arme (14, 16) der Pressbacken (1, 2) vorgesehen ist.Crimping pliers according to one of claims 1 to 13,
characterized in that the pressing jaws (1, 2) are provided with a second connection (20, 21), which is preferably formed by an opening at the free end of the arms (14, 16) of the pressing jaws (1, 2), for a manually operable drive device, the advantageous at the free end of the functional surfaces (18, 19) having arms (14, 16) of the pressing jaws (1, 2) is provided.
dadurch gekennzeichnet, dass der Eingriffsbereich der beiden Pressbacken (1, 2) etwa in Höhe der Laschen (5, 6) liegt, die vorteilhaft an ihrer der Aufnahme (22) zugewandten Seite mit einer vorzugsweise in halber Länge der Laschen (5, 6) vorgesehenen Vertiefung (7, 8) versehen sind.Crimping pliers according to one of claims 1 to 14,
characterized in that the engagement region of the two pressing jaws (1, 2) is approximately at the level of the tabs (5, 6), which advantageously on its side facing the receptacle (22) with a preferably half the length of the tabs (5, 6) provided recess (7, 8) are provided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710040895 DE102007040895A1 (en) | 2007-08-24 | 2007-08-24 | Crimping tool for radial compression of pipes, pipe sections and the like |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2027971A2 true EP2027971A2 (en) | 2009-02-25 |
EP2027971A3 EP2027971A3 (en) | 2010-08-04 |
EP2027971B1 EP2027971B1 (en) | 2013-11-27 |
Family
ID=40149687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08014576.6A Active EP2027971B1 (en) | 2007-08-24 | 2008-08-16 | Press clamp for radial pressing of pipes, pipe sections and similar |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2027971B1 (en) |
DE (1) | DE102007040895A1 (en) |
ES (1) | ES2447038T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3205455A1 (en) * | 2016-01-19 | 2017-08-16 | ProPress GmbH | Compression device |
CN111279561A (en) * | 2017-12-01 | 2020-06-12 | 伦斯泰格工具有限责任公司 | Crimping connector and crimping pliers with two jaws |
CN112936891A (en) * | 2018-01-09 | 2021-06-11 | 里奇工具公司 | System and method for axially aligning a mold |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD1025732S1 (en) * | 2023-08-03 | 2024-05-07 | Qing Dai | Hydraulic tool |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1452678A1 (en) | 1963-04-09 | 1969-03-06 | Hayden Nilos Ltd | Device for cold upsetting of metal bandages |
US5267464A (en) | 1991-12-30 | 1993-12-07 | Cleland John G | Pipe ring crimping tool |
DE20121845U1 (en) | 2001-01-15 | 2003-06-12 | Foell Remswerk | Pipe wrench for the plumbing industry etc. has additional connection for manual drive |
DE10354307A1 (en) | 2003-02-07 | 2004-08-19 | Gustav Klauke Gmbh | Pressstool jaw design for metal pipe closures uses blocking elements molded to jaw connecting strap or jaws to limit opening movement of jaw drive levers and jaw mouth appropriate to present component only. |
EP1591176A1 (en) | 2004-04-30 | 2005-11-02 | VIEGA GmbH & Co. KG. | Crimp pressing tool for crimping workpieces |
DE102005046333B3 (en) | 2005-09-27 | 2006-10-19 | Viega Gmbh & Co. Kg | Press-tool for connecting pipes has jaws whose rear ends can overlap as they are opened, allowing them to be used on large diameter pipes |
EP1731267A2 (en) | 2005-06-10 | 2006-12-13 | M. Dubuis et Compagnie | Die set for a crimping tool |
-
2007
- 2007-08-24 DE DE200710040895 patent/DE102007040895A1/en not_active Withdrawn
-
2008
- 2008-08-16 ES ES08014576T patent/ES2447038T3/en active Active
- 2008-08-16 EP EP08014576.6A patent/EP2027971B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1452678A1 (en) | 1963-04-09 | 1969-03-06 | Hayden Nilos Ltd | Device for cold upsetting of metal bandages |
US5267464A (en) | 1991-12-30 | 1993-12-07 | Cleland John G | Pipe ring crimping tool |
DE20121845U1 (en) | 2001-01-15 | 2003-06-12 | Foell Remswerk | Pipe wrench for the plumbing industry etc. has additional connection for manual drive |
DE10354307A1 (en) | 2003-02-07 | 2004-08-19 | Gustav Klauke Gmbh | Pressstool jaw design for metal pipe closures uses blocking elements molded to jaw connecting strap or jaws to limit opening movement of jaw drive levers and jaw mouth appropriate to present component only. |
EP1591176A1 (en) | 2004-04-30 | 2005-11-02 | VIEGA GmbH & Co. KG. | Crimp pressing tool for crimping workpieces |
EP1731267A2 (en) | 2005-06-10 | 2006-12-13 | M. Dubuis et Compagnie | Die set for a crimping tool |
DE102005046333B3 (en) | 2005-09-27 | 2006-10-19 | Viega Gmbh & Co. Kg | Press-tool for connecting pipes has jaws whose rear ends can overlap as they are opened, allowing them to be used on large diameter pipes |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3205455A1 (en) * | 2016-01-19 | 2017-08-16 | ProPress GmbH | Compression device |
CN111279561A (en) * | 2017-12-01 | 2020-06-12 | 伦斯泰格工具有限责任公司 | Crimping connector and crimping pliers with two jaws |
CN112936891A (en) * | 2018-01-09 | 2021-06-11 | 里奇工具公司 | System and method for axially aligning a mold |
Also Published As
Publication number | Publication date |
---|---|
ES2447038T3 (en) | 2014-03-11 |
EP2027971B1 (en) | 2013-11-27 |
EP2027971A3 (en) | 2010-08-04 |
DE102007040895A1 (en) | 2009-02-26 |
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