EP2265415B1 - Method for the permanent connection of workpieces - Google Patents
Method for the permanent connection of workpieces Download PDFInfo
- Publication number
- EP2265415B1 EP2265415B1 EP09713367.2A EP09713367A EP2265415B1 EP 2265415 B1 EP2265415 B1 EP 2265415B1 EP 09713367 A EP09713367 A EP 09713367A EP 2265415 B1 EP2265415 B1 EP 2265415B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressing
- workpieces
- face
- slide
- pressing tool
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 35
- 238000003825 pressing Methods 0.000 claims description 114
- 238000009434 installation Methods 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims description 2
- 235000020188 drinking water Nutrition 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 17
- 230000006835 compression Effects 0.000 description 14
- 238000007906 compression Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 239000011324 bead Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Images
Classifications
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49876—Assembling or joining with prestressing of part by snap fit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49945—Assembling or joining by driven force fit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/532—Conductor
- Y10T29/53209—Terminal or connector
- Y10T29/53213—Assembled to wire-type conductor
- Y10T29/53222—Means comprising hand-manipulatable implement
- Y10T29/53226—Fastening by deformation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/532—Conductor
- Y10T29/53209—Terminal or connector
- Y10T29/53213—Assembled to wire-type conductor
- Y10T29/53235—Means to fasten by deformation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5367—Coupling to conduit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53961—Means to assemble or disassemble with work-holder for assembly
- Y10T29/5397—Means to assemble or disassemble with work-holder for assembly and assembling press [e.g., truss assembling means, etc.]
Definitions
- the invention relates to a method for non-detachable joining of workpieces using a pressing tool.
- This method can be performed with a pressing tool for non-detachable joining of workpieces with two pivoting elements each having a pressing jaw and with at least one axis of rotation on which the pivoting elements are articulated, wherein the inner contours of the opposing pressing jaws form a receiving area.
- an attachment for a pressing tool with two pressing jaws, wherein each pressing jaw has an inner contour and wherein the opposing inner contours of the pressing jaws form a receiving area is described.
- Press tools, attachments for pressing tools and methods of the type mentioned are already known from the prior art, for example from the drinking water or heating installation area.
- the tools and methods are used to radially compress workpieces such as fittings, pipes, sleeves or the like.
- Pressing radially means essentially to transform by means of a pincer-like closing movement of two pressing jaws exhibiting pivoting two two at least partially arranged in overlapping workpieces and thus inextricably linked together.
- pressing tools and methods is For example, the exercise of an all-round homogeneous pressing force on the workpieces to be pressed significantly difficult.
- pipes and fittings have a rotationally symmetric and largely round shape before the pressing process.
- this symmetry may be disturbed due to inhomogeneously acting pressing forces at the connection point between the pipe and the fitting, which on the one hand can impair the visual impression as well as the functionality of the connection.
- the materials, especially plastics or metals of the claimed in the pressing workpieces can have a directed against the pressing forces inertia.
- This inertia can lead, in the form of restoring forces, to the fact that the material formed during the pressing process at least partially endeavors to restore the starting state or the starting structure of the workpieces.
- this is beyond the actual extent beyond and therefore generally undesirable use of the materials to be pressed workpieces.
- a pressing tool with two radially mutually engageable pressing jaws for producing a permanent, tight pipe press connection known.
- the inner contours of the pressing jaws have wedge-shaped surfaces, by means of which the conversion of a radial movement of the pressing jaws in an axial compression of the annular bead of a fitting can be effected.
- a pipe joint consisting of a press fitting element, which has at least one cross-sectionally bead-shaped, a sealing ring receiving portion, and from a tube which is inserted into the press fitting element known.
- the bead-like region is pressed radially with a pressing tool, so that the sealing element is pressed against the tube and thus produces a tight and permanent connection.
- a method for connecting pipes according to the preamble of claim 1 is known.
- a connecting tool is provided, which has two clamping elements with bevelled surfaces, which serve for the radial deformation of the workpiece.
- a pipe joint of a pipe and a fitting sleeve wherein the fitting sleeve has an inwardly radially open, containing a sealing ring annular bead.
- This annular bead is compressed with a pressing tool so that the sealing ring is pressed against the pipe inserted into the fitting sleeve.
- the mold insert of the pressing tool in this case has conical side surfaces which bear against the sides of the annular bead during compression, cause the compression of the annular bead and deform the sealing ring radially.
- the aforementioned problems can be solved or at least mitigated, in particular, by means of an axial compression technique.
- a homogeneous application of force is much easier to ensure in an axial pressing process.
- the restoring properties of the materials to be deformed also act in the axial direction in principle, the effects of increased stress on the material can usually be attributed to radial expansion in comparison to radial expansion long axial extent of the workpieces are kept low.
- a disadvantage of axially acting pressing tools is that they occupy a wide mounting space and have a high weight. The use of such tools or the application of such methods is difficult for the installer.
- the present invention is therefore based on the technical problem of specifying an alternative method with which a permanent connection between workpieces by axial compression can be created.
- the technical problem is solved by a method for permanent connection of workpieces using a pressing tool in particular as described above, wherein the pressing tool is actuated radially inwardly, wherein at least one of the pressing tool disposed against the workpiece axis inclined sliding surface and a Workpiece surface are brought into abutment with each other, in which the radially inwardly exerted pressing force is transmitted from the sliding surface to the workpiece surface and at least partially deflected in the axial direction and in which the workpieces are pressed in the axial direction.
- the sliding surface preferably faces a correspondingly adapted workpiece surface.
- a larger contact surface between sliding surface and workpiece surface is created. In this way, for example, the stability of the pressing process can be increased.
- the method explained above can be carried out with a pressing tool for non-releasably connecting workpieces with two pivoting elements each having a pressing jaw and with at least one axis of rotation on which the pivoting elements are articulated, wherein the inner contours of the opposed pressing jaws form a receiving area, wherein the inner contours have at least one inclined against the receiving area axis sliding surface.
- the receiving area axis runs approximately perpendicularly to the surface located between the inner contours of the pressing jaws and substantially corresponds to the axis of a workpiece insertable for the purpose of pressing into the receiving area, for example a pipe or fitting.
- the dynamics of a radially inwardly directed movement can be at least partially converted into a pressing force extending in the axial direction.
- the pivoting elements and in particular the pressing jaws are moved toward one another about the axis of rotation, while the workpieces to be pressed are arranged in the receiving region between the pressing jaws.
- the inner contours of the pressing jaws are brought into contact with surfaces arranged on the workpieces to be pressed.
- a pressing tool can be provided which performs a compression in the axial direction, yet takes little mounting space and, for example, by a smaller axial expansion offers weight advantages.
- the inner contour of each pressing jaw with exactly one sliding surface.
- the inner contour preferably also has a projection acting as an abutment, which is arranged opposite the sliding surface on the other side of the inner contour of the pressing jaw.
- this projection can engage behind a portion of a workpiece to be compressed, in particular of the workpiece, which is not in contact with the sliding surface, and thus build up the counter-pressure necessary for the axial compression. A force deflection from a radially inward in an axial direction is not effected by the projection.
- the deflected and applied for axial compression force can be increased.
- the deflected pressing force is for example doubled. It should be noted, however, that the configuration of the two sliding surfaces not each other or symmetrical, but may be different if it is convenient for the application.
- At least one sliding surface is designed as a cone segment.
- the production of the inner contours of the pressing jaws and optionally the production of workpieces with adapted to these pressing jaws interaction surfaces, which are provided for the previously described type of pressing simplified.
- a high degree of compatibility between the pressing tools described above and the workpieces to be pressed, such as pipes, fittings and the like, can be achieved.
- the angle of inclination of the sliding surface relative to the receiving area axis is between 35 ° and 55 °, in particular at 45 °.
- the angle of inclination essentially determines the distance of the radially inward movement which is to be covered in order to effect an axial movement over a certain distance.
- the flatter the angle of inclination the further the inner contour of the pressing jaw has to reach in the axial direction in order to achieve a certain pressing result, whereas the radial extent of the pressing jaw can be made quite narrow.
- An angle of, for example, 35 ° thus causes a quite efficient from the radial movement force deflection, whereas an angle of 55 °, although a longer radial path result, but ensures a higher stability during compression.
- the angle of 45 ° is particularly suitable to compensate between the two effects.
- the outer dimensions of the pressing jaws can be optimized in this way both in the radial and in the axial direction.
- the sliding surface is designed to promote sliding.
- the inertia which oppose the workpieces to be compressed to an axial evasive movement, at least be reduced, so that the pressing operation is easier to perform.
- the sliding surface to form sliding can be done in different ways. It is possible to form the portion of the inner contour of the pressing jaw, which comprises the sliding surface, in two parts with the rest of the pressing jaw, and to manufacture the sliding surface of a material such as polytetrafluoroethylene or the like. However, it is also possible to increase the slipperiness by means of a sliding-promoting coating of the sliding surface, for example with a bonded coating. Likewise, it is possible, by smoothing the sliding surface, for example by polishing the sliding surface to form this slide-promoting.
- the pressing tool may have an attachment for a pressing tool with two pressing jaws, wherein each pressing jaw has an inner contour and wherein the opposing inner contours of the pressing jaws form a receiving region and the inner contours have at least one sliding surface inclined towards the receiving region axis.
- Fig. 1a shows a pressing tool 2 in a side view.
- the pressing tool 2 has two pivoting elements 4, which are pivotable about an axis of rotation 6 associated therewith.
- the pivoting movements of the pivot elements 4 can be made more flexible.
- the provision of only one axis of rotation 6, to which both pivoting elements 4 are articulated, is also possible.
- the pivot elements 4 in this example associated support members 8 the pivot elements 4 are interconnected.
- the pivot elements 4 press jaws 10 are arranged, which form a receiving area 12 opposite to each other between them by means of their inner contours. Depending on the position of the pivoting elements 4, the receiving region 12 can be kept closer or closer to one another.
- a tube end 16 encompassed by a sleeve 14 and a fitting 18, which are particularly suitable for axial compression, are introduced into the receiving region 12.
- the sleeve 14 is is connected to the pipe 16 by fixing protrusions (not shown) disposed on the inner peripheral surface of the sleeve 14, which are anchored in the outer peripheral surface of the pipe 16, so that the sleeve 14 and the pipe 16 are not movable relative to each other.
- the pressing tool 2 or the method according to the invention is not limited to the use of the tubes 16, sleeves 14 or fittings 18 shown here by way of example.
- the swivel elements 4 shown here by way of example can also be provided with removable pressing jaws 10. In this way, by means of an attachment for a pressing tool 2 already manufactured pressing tools 2, which were originally intended for a radial compression, are made suitable for axial compression.
- Fig. 1b shows in a cross-sectional view of the arrangement Fig. 1a a fitting 18, a sleeve 14 and a tube 16 before a permanent connection between these three workpieces 14, 16, 18 is made.
- the inner contours of the pressing jaws 10 have, in this example, two inclined sliding surfaces 22 inclined towards the receiving area axis 20. Both sliding surfaces 22 are formed in this example as cone segments. However, other shapes are also conceivable. In particular, the angle of inclination of the sliding surfaces 22 can be chosen freely. However, the inclination angle of the sliding surfaces 22 relative to the receiving area axis 20 in this example is constant at about 45 °. Deviations from this value, for example to 35 ° or 55 ° or however, where appropriate, they are also possible. In this embodiment, not shown, the sliding surfaces 22 may be formed, for example, by means of a slide to promote sliding.
- the fitting 18 has centrally on its base a recess 24 with bevelled side walls.
- the angle of inclination of the side walls in this example is advantageously adapted to the angle of inclination of the sliding surfaces 22 on the pressing jaws 10.
- the sliding surfaces 22 are in contact with the aforementioned workpiece surfaces, for example the chamfer 26 of the sleeve 14 or the side wall of the recess 24 of the fitting 18th
- Fig. 2a shows the state of the pressing tool 2 and the workpieces 14, 16, 18 after the pressing process in a side view.
- the pivot elements 4 are pivoted inwardly, so that the abutment surfaces 28 of the pressing jaws 10 abut each other.
- Fig. 2b turns off the arrangement Fig. 2a In a cross-sectional view.
- the force exerted was at least partially transmitted via the abutting sliding surfaces 22 and workpiece surfaces of the pressing tool 2 on the workpieces, in this example, the sleeve 14 and the fitting 18 and in deflected the axial direction.
- This has the consequence that in this example, the sleeve 14 and the with the Sleeve 14 connected tube 16 and the fitting 18 to each other to move, or in other words, be compressed or pressed.
- a latching projection arranged on the outer circumferential surface of the sleeve 14 is latched in a latching groove arranged on the inner peripheral surface of the outer body of the fitting 18, so that axial removal of the tube end 16 from the fitting 18 engaged by the sleeve 14 is not possible.
- the permanent connection is made with it.
- An axial movement of the tube 16 out of the fitting 18 is prevented by the latching.
- the support body of the fitting 18 was at least partially molded into the inner peripheral surface of the tube 16 during the pressing operation and thus seals the connection between the tube 16 and the fitting 18, for example against fluids (not shown) guided in the tube 16 under pressure.
- a pressing tool 2 has been used which, despite the radial output movement of the pressing jaws 10, performs a pressing in the axial direction, requires little installation space and, in particular, offers improved handiness.
- Fig. 3 shows in a cross-sectional view of an assembly of a pipe 16, a support body having a fitting 18, wherein the support body engages the tube 16, a arranged on the tube outer peripheral surface transmission element 30 which is a wedge shape in cross section and at the wider end of the wedge an opening 32 to has visual control of the pressing state, and an outside of the Transmission element 30 abutting sliding sleeve 34, which is also formed in cross-section also approximately wedge-shaped, but at the wider end has a flange-like projection 36.
- the flange-like projection 36 of the sliding sleeve 34 has a chamfer 38, the surface of which is provided for interaction with one of the sliding surfaces 22 of the pressing jaws 10 shown schematically in this example.
- the sliding sleeve 34 includes an opening for visually checking the pressing state of the workpieces 16, 18, 30 and 34.
- the fitting 18 has on its base a recess 24 with an inclined wall surface, wherein the inclination of the inclined wall surface to the inner contour of the pressing jaws 10th is adjusted.
- the pressing jaws 10 in this example comprise two mutually facing sliding surfaces 22, which are formed as cone segments, and have an angle of inclination relative to the receiving area axis 20 of about 60 °. By choosing this slightly higher angle, in particular the stability of the pressing process can be improved.
- the sliding surfaces 22 of the pressing jaws 10 interact with the inclined wall surfaces on the recess 24 of the fitting 18 and with the chamfer 38 of the flange-like projection 36 of the sliding sleeve 34.
- the dynamics brought about by a radially inward movement of the pressing jaws 10 is transmitted via the sliding surfaces 22 transmitted to the sliding sleeve 34 and the fitting 18, so that the fitting 18, the sliding sleeve 34 and thus also the transmission element 30 are pushed together in the axial direction.
- the tube 16 is pressed to the support body of the fitting 18, wherein material of the tube 16 is formed in particular in arranged on the outer peripheral surface of the support body recesses 40, so that an axial movement is prevented after the completion of the pressing operation. In this way, thus a permanent permanent connection between a pipe 16 and a fitting 18 can be created.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Automatic Assembly (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
Die Erfindung betrifft ein Verfahren zum unlösbaren Verbinden von Werkstücken unter Einsatz eines Presswerkzeugs. Dieses Verfahren kann mit einem Presswerkzeug zum unlösbaren Verbinden von Werkstücken mit zwei je eine Pressbacke aufweisenden Schwenkelementen und mit mindestens einer Drehachse, an welcher die Schwenkelemente angelenkt sind, wobei die Innenkonturen der einander gegenüberliegenden Pressbacken einen Aufnahmebereich bilden, durchgeführt werden. Weiterhin wird ein Aufsatz für ein Presswerkzeug mit zwei Pressbacken, wobei jede Pressbacke eine Innenkontur aufweist und wobei die einander gegenüberliegenden Innenkonturen der Pressbacken einen Aufnahmebereich bilden, beschrieben.The invention relates to a method for non-detachable joining of workpieces using a pressing tool. This method can be performed with a pressing tool for non-detachable joining of workpieces with two pivoting elements each having a pressing jaw and with at least one axis of rotation on which the pivoting elements are articulated, wherein the inner contours of the opposing pressing jaws form a receiving area. Furthermore, an attachment for a pressing tool with two pressing jaws, wherein each pressing jaw has an inner contour and wherein the opposing inner contours of the pressing jaws form a receiving area, is described.
Presswerkzeuge, Aufsätze für Presswerkzeuge und Verfahren der eingangs genannten Art sind aus dem Stand der Technik, beispielsweise aus dem Trinkwasser- oder Heizungsinstallationsbereich bereits bekannt. Vorzugsweise werden die Werkzeuge und die Verfahren verwendet, um Werkstücke wie Fittings, Rohre, Muffen oder ähnliches radial zu verpressen. Radial verpressen bedeutet dabei im Wesentlichen, mittels einer zangenartigen Schließbewegung zweier Pressbacken aufweisender Schwenkelemente zwei zumindest teilweise in Überlappung angeordnete Werkstücke umzuformen und damit unlösbar miteinander zu verbinden.Press tools, attachments for pressing tools and methods of the type mentioned are already known from the prior art, for example from the drinking water or heating installation area. Preferably, the tools and methods are used to radially compress workpieces such as fittings, pipes, sleeves or the like. Pressing radially means essentially to transform by means of a pincer-like closing movement of two pressing jaws exhibiting pivoting two two at least partially arranged in overlapping workpieces and thus inextricably linked together.
Diese Vorgehensweise kann jedoch nachteilig sein. Mit für diesen Zweck vorgesehenen Presswerkzeugen und Verfahren ist beispielsweise die Ausübung einer allseitig homogenen Presskraft auf die zu verpressenden Werkstücke deutlich erschwert. Vorzugsweise haben Rohre und Fittings vor dem Pressvorgang eine rotationssymmetrische und weitgehend runde Form. Nach dem Pressvorgang kann diese Symmetrie auf Grund inhomogen wirkender Presskräfte an der Verbindungsstelle zwischen Rohr und Fitting jedoch gestört sein, was einerseits den optischen Eindruck als auch die Funktionalität der Verbindung beeinträchtigen kann.However, this procedure can be disadvantageous. With provided for this purpose pressing tools and methods is For example, the exercise of an all-round homogeneous pressing force on the workpieces to be pressed significantly difficult. Preferably, pipes and fittings have a rotationally symmetric and largely round shape before the pressing process. However, after the pressing process, this symmetry may be disturbed due to inhomogeneously acting pressing forces at the connection point between the pipe and the fitting, which on the one hand can impair the visual impression as well as the functionality of the connection.
Weiterhin können die Werkstoffe, insbesondere Kunststoffe oder Metalle der bei dem Pressvorgang beanspruchten Werkstücke ein gegen die Presskräfte gerichtetes Beharrungsvermögen aufweisen. Dieses Beharrungsvermögen kann in Form von Rückstellkräften dazu führen, dass das bei dem Pressvorgang umgeformte Material zumindest teilweise den Ausgangszustand bzw. das Ausgangsgefüge der Werkstücke wiederherzustellen bestrebt ist. Dies erfordert von dem Anwender eines radial einwärtig wirkenden Pressverfahrens bzw. Presswerkzeugs, dass er die radial einwärtig auszuübenden Presskräfte erhöhen muss, um das gewünschte Pressergebnis zu erhalten. Dies stellt jedoch eine über das eigentliche Maß hinausgehende und deshalb grundsätzlich unerwünschte Inanspruchnahme der Werkstoffe der zu verpressenden Werkstücke dar.Furthermore, the materials, especially plastics or metals of the claimed in the pressing workpieces can have a directed against the pressing forces inertia. This inertia can lead, in the form of restoring forces, to the fact that the material formed during the pressing process at least partially endeavors to restore the starting state or the starting structure of the workpieces. This requires the user of a radially inward pressing process to have to increase the radially inwardly applied pressing forces to obtain the desired pressing result. However, this is beyond the actual extent beyond and therefore generally undesirable use of the materials to be pressed workpieces.
Beispielsweise ist aus der
Aus der
Aus der
Aus der
Die zuvor genannten Probleme können insbesondere mittels einer axialen Verpressungstechnik gelöst bzw. zumindest abgemildert werden. Eine homogene Kraftausübung ist bei einem axialen Pressverfahren deutlich einfacher zu gewährleisten. Die Rückstelleigenschaften der zu verformenden Werkstoffe wirken zwar grundsätzlich auch in axialer Richtung, allerdings können die Auswirkungen einer erhöhten Beanspruchung des Materials wegen der üblicherweise im Vergleich zur radialen Ausdehnung langen axialen Ausdehnung der Werkstücke gering gehalten werden. Nachteilig an axial wirkenden Presswerkzeugen ist jedoch, dass sie einen weiten Montageraum einnehmen und ein hohes Gewicht aufweisen. Die Benutzung solcher Werkzeuge bzw. die Anwendung derartiger Verfahren ist dem Installateur damit erschwert.The aforementioned problems can be solved or at least mitigated, in particular, by means of an axial compression technique. A homogeneous application of force is much easier to ensure in an axial pressing process. Although the restoring properties of the materials to be deformed also act in the axial direction in principle, the effects of increased stress on the material can usually be attributed to radial expansion in comparison to radial expansion long axial extent of the workpieces are kept low. A disadvantage of axially acting pressing tools, however, is that they occupy a wide mounting space and have a high weight. The use of such tools or the application of such methods is difficult for the installer.
Der vorliegenden Erfindung liegt daher das technische Problem zu Grunde, ein alternatives Verfahren anzugeben, mit welchem eine unlösbare Verbindung zwischen Werkstücken durch axiales Verpressen geschaffen werden kann.The present invention is therefore based on the technical problem of specifying an alternative method with which a permanent connection between workpieces by axial compression can be created.
Gemäß der vorliegenden Erfindung wird das technische Problem durch ein Verfahren zum unlösbaren Verbinden von Werkstücken unter Einsatz eines insbesondere wie zuvor beschriebenen Presswerkzeugs gelöst, bei dem das Presswerkzeug radial einwärts betätigt wird, bei dem mindestens eine an dem Presswerkzeug angeordnete gegen die Werkstückachse geneigte Gleitfläche und eine Werkstückfläche in Anlage zueinander gebracht werden, bei dem die radial einwärtig ausgeübte Presskraft von der Gleitfläche auf die Werkstückfläche übertragen und zumindest teilweise in axialer Richtung umgelenkt wird und bei dem die Werkstücke in axialer Richtung verpresst werden.According to the present invention, the technical problem is solved by a method for permanent connection of workpieces using a pressing tool in particular as described above, wherein the pressing tool is actuated radially inwardly, wherein at least one of the pressing tool disposed against the workpiece axis inclined sliding surface and a Workpiece surface are brought into abutment with each other, in which the radially inwardly exerted pressing force is transmitted from the sliding surface to the workpiece surface and at least partially deflected in the axial direction and in which the workpieces are pressed in the axial direction.
Vorzugsweise liegt der Gleitfläche eine entsprechend angepasste Werkstückfläche gegenüber. Dadurch wird insbesondere eine größere Anlagefläche zwischen Gleitfläche und Werkstückfläche geschaffen. Auf diese Weise kann beispielsweise die Stabilität des Pressvorgangs erhöht werden.The sliding surface preferably faces a correspondingly adapted workpiece surface. As a result, in particular a larger contact surface between sliding surface and workpiece surface is created. In this way, for example, the stability of the pressing process can be increased.
Hinsichtlich weiterer Vorteile des erfindungsgemäßen Verfahrens wird auf die Unteransprüche bzw. auf die nachfolgenden Ausführungen zu einem Presswerkzeug bzw. zu einem geeigneten Aufsatz für Presswerkzeuge verwiesen.With regard to further advantages of the method according to the invention is based on the subclaims or on the referenced below to a pressing tool or to a suitable attachment for pressing tools.
Das zuvor erläuterte Verfahren kann mit einem Presswerkzeug zum unlösbaren Verbinden von Werkstücken mit zwei je eine Pressbacke aufweisenden Schwenkelementen und mit mindestens einer Drehachse, an welcher die Schwenkelemente angelenkt sind, wobei die Innenkonturen der einander gegenüberliegenden Pressbacken einen Aufnahmebereich bilden, durchgeführt werden, wobei die Innenkonturen mindestens eine gegen die Aufnahmebereichsachse geneigte Gleitfläche aufweisen.The method explained above can be carried out with a pressing tool for non-releasably connecting workpieces with two pivoting elements each having a pressing jaw and with at least one axis of rotation on which the pivoting elements are articulated, wherein the inner contours of the opposed pressing jaws form a receiving area, wherein the inner contours have at least one inclined against the receiving area axis sliding surface.
Die Aufnahmebereichsachse verläuft in etwa senkrecht zu der zwischen den Innenkonturen der Pressbacken gelegenen Fläche und entspricht im Wesentlichen der Achse eines zum Zwecke des Verpressens in den Aufnahmebereich einführbaren Werkstücks, beispielsweise eines Rohrs oder Fittings.The receiving area axis runs approximately perpendicularly to the surface located between the inner contours of the pressing jaws and substantially corresponds to the axis of a workpiece insertable for the purpose of pressing into the receiving area, for example a pipe or fitting.
Durch die gegen die Aufnahmebereichsachse geneigte Gleitfläche kann die Dynamik einer radial einwärts ausgeführten Bewegung zumindest teilweise in eine in axiale Richtung verlaufende Presskraft umgewandelt werden. Beim Pressvorgang werden die Schwenkelemente und insbesondere die Pressbacken um die Drehachse aufeinander zu bewegt, während die zu verpressenden Werkstücke in dem Aufnahmebereich zwischen den Pressbacken angeordnet sind. Die Innenkonturen der Pressbacken werden an an den zu verpressenden Werkstücken angeordneten Flächen in Anlage gebracht. Durch die Fortsetzung der radial einwärtigen Bewegung wird der zwischen den Werkstücken und den Innenkonturen verbleibende Bereich verengt. Die in Anlage zu den Werkstücken liegenden Gleitflächen wirken damit als Kraftübertragungs- und Kraftumlenkungsflächen, denn die Gleitfläche und die Fläche an dem Werkstück gleiten übereinander hinweg, während das Werkstück in Bewegung versetzt wird. Auf diese Weise kann, obwohl von einer radial einwärtigen Bewegung ausgehend, eine Relativbewegung zwischen den zu verpressenden Werkstücken in axialer Richtung erzeugt und zur Verpressung benutzt werden.By virtue of the sliding surface inclined in relation to the receiving region axis, the dynamics of a radially inwardly directed movement can be at least partially converted into a pressing force extending in the axial direction. During the pressing operation, the pivoting elements and in particular the pressing jaws are moved toward one another about the axis of rotation, while the workpieces to be pressed are arranged in the receiving region between the pressing jaws. The inner contours of the pressing jaws are brought into contact with surfaces arranged on the workpieces to be pressed. By continuing the radially inward movement, the area remaining between the workpieces and the inner contours is narrowed. The lying in contact with the workpieces sliding surfaces thus act as Kraftübertragungs- and Kraftumlenkungsflächen, because the sliding surface and the surface slide on the workpiece over each other while the workpiece is set in motion. In this way, although starting from a radially inward movement, a relative movement between the workpieces to be compressed in the axial direction can be generated and used for pressing.
Im Ergebnis kann ein Presswerkzeug zur Verfügung gestellt werden, welches eine Verpressung in axialer Richtung durchführt, trotzdem wenig Montageraum in Anspruch nimmt und, beispielsweise durch eine geringere axiale Ausdehnung Gewichtsvorteile bietet.As a result, a pressing tool can be provided which performs a compression in the axial direction, yet takes little mounting space and, for example, by a smaller axial expansion offers weight advantages.
Es ist möglich, die Innenkontur jeder Pressbacke mit genau einer Gleitfläche zu versehen. In diesem Fall jedoch weist die Innenkontur bevorzugter Weise auch einen als Widerlager wirkenden Vorsprung auf, welcher der Gleitfläche gegenüber auf der anderen Seite der Innenkontur der Pressbacke angeordnet ist. Vorzugsweise kann dieser Vorsprung einen Abschnitt eines zu verpressenden Werkstücks, insbesondere des Werkstücks, welches nicht mit der Gleitfläche in Kontakt ist, hintergreifen und somit den zur axialen Verpressung notwendigen Gegendruck aufbauen. Eine Kraftumlenkung von einer radial einwärtigen in eine axiale Richtung wird durch den Vorsprung jedoch nicht bewirkt.It is possible to provide the inner contour of each pressing jaw with exactly one sliding surface. In this case, however, the inner contour preferably also has a projection acting as an abutment, which is arranged opposite the sliding surface on the other side of the inner contour of the pressing jaw. Preferably, this projection can engage behind a portion of a workpiece to be compressed, in particular of the workpiece, which is not in contact with the sliding surface, and thus build up the counter-pressure necessary for the axial compression. A force deflection from a radially inward in an axial direction is not effected by the projection.
Es ist aber auch möglich, zwei gegen die Aufnahmebereichsachse geneigte, einander zugewandte Gleitflächen vorzusehen. Auf diese Weise kann die umgelenkte und zur axialen Verpressung aufgewendete Kraft erhöht werden. Bei symmetrischer Ausführung der beiden Gleitflächen und entsprechenden Interaktionsflächen an den Werkstücken wird die umgelenkte Presskraft beispielsweise verdoppelt. Es sei aber darauf hingewiesen, dass die Ausgestaltung der beiden Gleitflächen einander nicht entsprechen oder symmetrisch sein muss, sondern auch unterschiedlich ausgeführt werden kann, wenn es für die Anwendung zweckdienlich ist.But it is also possible to provide two inclined against the receiving area axis, facing sliding surfaces. In this way, the deflected and applied for axial compression force can be increased. With symmetrical design of the two sliding surfaces and corresponding interaction surfaces on the workpieces, the deflected pressing force is for example doubled. It should be noted, however, that the configuration of the two sliding surfaces not each other or symmetrical, but may be different if it is convenient for the application.
Besonders vorteilhaft ist es, wenn mindestens eine Gleitfläche als Kegelsegment ausgebildet ist. Auf diese Weise wird insbesondere die Herstellung der Innenkonturen der Pressbacken und gegebenenfalls die Herstellung von Werkstücken mit auf diese Pressbacken angepassten Interaktionsflächen, welche für die zuvor beschriebene Art des Verpressens vorgesehen sind, vereinfacht. Dadurch kann ein hohes Maß an Kompatibilität zwischen den zuvor beschriebenen Presswerkzeugen und den zur Verpressung vorgesehenen Werkstücken wie Rohren, Fittings und ähnlichem erreicht werden.It is particularly advantageous if at least one sliding surface is designed as a cone segment. In this way, in particular the production of the inner contours of the pressing jaws and optionally the production of workpieces with adapted to these pressing jaws interaction surfaces, which are provided for the previously described type of pressing, simplified. As a result, a high degree of compatibility between the pressing tools described above and the workpieces to be pressed, such as pipes, fittings and the like, can be achieved.
Vorzugsweise liegt der Neigungswinkel der Gleitfläche relativ zur Aufnahmebereichsachse zwischen 35° und 55°, insbesondere bei 45°. Der Neigungswinkel bestimmt im Wesentlichen die Wegstrecke der radial einwärtigen Bewegung, die zurückzulegen ist, um eine axiale Bewegung über eine bestimmte Wegstrecke zu bewirken. Je flacher der Neigungswinkel ist, desto weiter muss die Innenkontur der Pressbacke in axialer Richtung ausgreifen, um ein bestimmtes Pressergebnis zu erzielen, wohingegen die radiale Ausdehnung der Pressbacke recht schmal bemessen werden kann. Ein Winkel von beispielsweise 35° bewirkt somit eine aus der radialen Bewegung heraus recht effiziente Kraftumlenkung, wohingegen ein Winkel von 55° zwar einen längeren radialen Weg zur Folge hat, dafür aber eine höhere Stabilität während der Verpressung gewährleistet. Der Winkel von 45° ist wiederum insbesondere geeignet, zwischen den beiden Effekten einen Ausgleich zu schaffen. Darüber hinaus können die äußeren Abmessungen der Pressbacken auf diese Weise sowohl in radialer als auch in axialer Richtung optimiert werden.Preferably, the angle of inclination of the sliding surface relative to the receiving area axis is between 35 ° and 55 °, in particular at 45 °. The angle of inclination essentially determines the distance of the radially inward movement which is to be covered in order to effect an axial movement over a certain distance. The flatter the angle of inclination, the further the inner contour of the pressing jaw has to reach in the axial direction in order to achieve a certain pressing result, whereas the radial extent of the pressing jaw can be made quite narrow. An angle of, for example, 35 ° thus causes a quite efficient from the radial movement force deflection, whereas an angle of 55 °, although a longer radial path result, but ensures a higher stability during compression. The angle of 45 °, in turn, is particularly suitable to compensate between the two effects. In addition, the outer dimensions of the pressing jaws can be optimized in this way both in the radial and in the axial direction.
Es ist weiterhin besonders bevorzugt, dass die Gleitfläche gleitfördernd ausgebildet ist. Auf diese Weise kann die Trägheit, welche die zu verpressenden Werkstücke einer axialen Ausweichbewegung entgegensetzen, zumindest verringert werden, so dass der Pressvorgang leichter auszuführen ist. Die Gleitfläche gleitfördernd auszubilden, kann auf unterschiedliche Weise geschehen. Es ist möglich, den Abschnitt der Innenkontur der Pressbacke, welcher die Gleitfläche umfasst, mit dem Rest der Pressbacke zweiteilig auszubilden, und die Gleitfläche aus einem Material wie Polytetrafluoroethylen oder ähnlichem zu fertigen. Es ist allerdings auch möglich, das Gleitvermögen mittels einer gleitfördernden Beschichtung der Gleitfläche zu erhöhen, beispielsweise mit einer Gleitlackbeschichtung. Ebenso ist es möglich, durch eine Glättung der Gleitfläche, bspw. durch Polieren der Gleitfläche diese gleitfördernd auszubilden.It is further particularly preferred that the sliding surface is designed to promote sliding. In this way, the inertia, which oppose the workpieces to be compressed to an axial evasive movement, at least be reduced, so that the pressing operation is easier to perform. The sliding surface to form sliding, can be done in different ways. It is possible to form the portion of the inner contour of the pressing jaw, which comprises the sliding surface, in two parts with the rest of the pressing jaw, and to manufacture the sliding surface of a material such as polytetrafluoroethylene or the like. However, it is also possible to increase the slipperiness by means of a sliding-promoting coating of the sliding surface, for example with a bonded coating. Likewise, it is possible, by smoothing the sliding surface, for example by polishing the sliding surface to form this slide-promoting.
Das Presswerkzeug kann einen Aufsatz für ein Presswerkzeug mit zwei Pressbacken aufweisen, wobei jede Pressbacke eine Innenkontur aufweist und wobei die einander gegenüberliegenden Innenkonturen der Pressbacken einen Aufnahmebereich bilden undwobei die Innenkonturen mindestens eine gegen die Aufnahmebereichsachse geneigte Gleitfläche aufweisen.The pressing tool may have an attachment for a pressing tool with two pressing jaws, wherein each pressing jaw has an inner contour and wherein the opposing inner contours of the pressing jaws form a receiving region and the inner contours have at least one sliding surface inclined towards the receiving region axis.
Auf diese Weise können ursprünglich für die radiale Verpressung vorgesehene Presswerkzeuge auf einfache Weise für eine axiale Verpressung tauglich gemacht werden. Die Neufertigung an die geänderten Anforderungen entsprechend angepasster Schwenkelemente ist somit nicht mehr erforderlich, woraus sich insbesondere ökonomische Vorteile ergeben.In this way, originally provided for the radial compression pressing tools can be made suitable for axial compression in a simple manner. The new production of the changed requirements correspondingly adapted pivoting elements is therefore no longer necessary, resulting in particular economic benefits.
Im Folgenden wird die Erfindung an Hand von in einer Zeichnung dargestellten Ausführungsbeispielen näher erläutert. In der Zeichnung zeigen:
- Fig. 1a,b
- ein Ausführungsbeispiel des Presswerkzeugs vor dem Pressvorgang in zwei unterschiedlichen Ansichten,
- Fig. 2a,b
- das Ausführungsbeispiel des Presswerkzeugs aus den
Fig. 1a, b nach dem Pressvorgang in zwei unterschiedlichen Ansichten und - Fig. 3
- ein weiteres Ausführungsbeispiel der Anwendung eines Presswerkzeugs.
- Fig. 1a, b
- An embodiment of the pressing tool before the pressing process in two different views,
- Fig. 2a, b
- the embodiment of the pressing tool from the
Fig. 1a, b after the pressing process in two different views and - Fig. 3
- another embodiment of the application of a pressing tool.
Im Folgenden wird der Pressvorgang beschrieben. Selbstverständlich ist das Presswerkzeug 2 oder das erfindungsgemäße Verfahren nicht auf die Verwendung von den hier beispielhaft dargestellten Rohren 16, Hülsen 14 oder Fittings 18 beschränkt.The following describes the pressing process. Of course, the
Die hier beispielhaft gezeigten Schwenkelemente 4 können auch mit abnehmbaren Pressbacken 10 versehen sein. Auf diese Weise können mittels eines Aufsatzes für ein Presswerkzeug 2 bereits gefertigte Presswerkzeuge 2, welche ursprünglich für eine radiale Verpressung vorgesehen waren, auch für eine axiale Verpressung tauglich gemacht werden.The swivel elements 4 shown here by way of example can also be provided with removable
Die Innenkonturen der Pressbacken 10 weisen in diesem Beispiel zwei gegen die Aufnahmebereichsachse 20 geneigte, einander zugewandte Gleitflächen 22 auf. Beide Gleitflächen 22 sind in diesem Beispiel als Kegelsegmente ausgebildet. Andere Formen sind jedoch auch denkbar. Insbesondere kann der Neigungswinkel der Gleitflächen 22 frei gewählt werden. Der Neigungswinkel der Gleitflächen 22 relativ zur Aufnahmebereichsachse 20 liegt in diesem Beispiel jedoch konstant bei etwa 45°. Abweichungen von diesem Wert, beispielsweise bis 35° oder 55° oder gegebenenfalls darüber hinaus sind jedoch ebenfalls möglich. In diesem Ausführungsbeispiel nicht dargestellt können die Gleitflächen 22, beispielsweise mittels einer Beschichtung gleitfördernd ausgebildet sein.The inner contours of the
Das Fitting 18 weist mittig an seinem Grundkörper eine Ausnehmung 24 mit abgeschrägten Seitenwänden auf. Der Neigungswinkel der Seitenwände ist in diesem Beispiel vorteilhafterweise auf den Neigungswinkel der Gleitflächen 22 an den Pressbacken 10 angepasst. Ferner weist die Hülse 14 an ihrem flanschartigen Vorsprung eine Fase 26 auf, welche ebenfalls an den Neigungswinkel der Gleitflächen 22, also in diesem Beispiel etwa 45° angepasst ist. Auf diese Weise kann der Pressvorgang insbesondere stabilisiert werden. Vor dem Pressvorgang sind die Gleitflächen 22 in Anlage mit den zuvor genannten Werkstückflächen, beispielsweise der Fase 26 der Hülse 14 oder der Seitenwand der Ausnehmung 24 des Fittings 18.The fitting 18 has centrally on its base a
Nach dem axialen Pressvorgang ist ein an der Außenumfangsfläche der Hülse 14 angeordneter Rastvorsprung in einer an der Innenumfangsfläche des Außenkörpers des Fittings 18 angeordneten Rastnut eingerastet, so dass ein axiales Entfernen des von der Hülse 14 umgriffenen Rohrendes 16 aus dem Fitting 18 nicht möglich ist.After the axial pressing operation, a latching projection arranged on the outer circumferential surface of the
Die unlösbare Verbindung ist damit hergestellt. Eine axiale Bewegung des Rohrs 16 aus dem Fitting 18 heraus wird durch die Verrastung verhindert. Der Stützkörper des Fittings 18 wurde während des Pressvorgangs in die Innenumfangsfläche des Rohrs 16 zumindest teilweise eingeformt und dichtet somit die Verbindung zwischen Rohr 16 und Fitting 18 beispielsweise gegenüber in dem Rohr 16 unter Druckbeaufschlagung geführten Fluiden (nicht dargestellt) ab.The permanent connection is made with it. An axial movement of the
Im Ergebnis ist ein Presswerkzeug 2 zum Einsatz gekommen, welches trotz radialer Ausgangsbewegung der Pressbacken 10 eine Verpressung in axialer Richtung durchführt, wenig Montageraum in Anspruch nimmt und insbesondere eine verbesserte Handlichkeit bietet.As a result, a
Die Pressbacken 10 umfassen in diesem Beispiel zwei einander zugewandte Gleitflächen 22, welche als Kegelsegmente ausgebildet sind, und einen Neigungswinkel relativ gegen die Aufnahmebereichsachse 20 von etwa 60° aufweisen. Durch die Wahl dieses etwas höheren Winkels kann insbesondere die Stabilität des Pressvorgangs verbessert werden.The
Während des Pressvorgangs interagieren die Gleitflächen 22 der Pressbacken 10 mit den schrägen Wandflächen an der Ausnehmung 24 des Fittings 18 und mit der Fase 38 des flanschartigen Vorsprungs 36 der Gleithülse 34. Die durch eine radial einwärtige Bewegung der Pressbacken 10 bewirkte Dynamik wird über die Gleitflächen 22 an die Gleithülse 34 und das Fitting 18 übertragen, so dass das Fitting 18, die Gleithülse 34 und damit auch das Übertragungselement 30 in axialer Richtung zusammen geschoben werden. Die keilförmige Ausgestaltung der Gleithülse 34 und des Übertragungselements 30 sowie deren Anlage bewirken, dass die Presskräfte während des Pressvorgangs auf die Rohraußenumfangsfläche übertragen und zumindest teilweise wieder in radial einwärtige Richtung umgelenkt werden. Dadurch wird das Rohr 16 mit dem Stützkörper des Fittings 18 verpresst, wobei Material des Rohrs 16 insbesondere in an der Außenumfangsfläche des Stützkörpers angeordnete Vertiefungen 40 eingeformt wird, so dass eine axiale Bewegung nach der Beendigung des Pressvorgangs verhindert wird. Auch auf diese Weise kann somit eine dauerhafte unlösbare Verbindung zwischen einem Rohr 16 und einem Fitting 18 geschaffen werden.During the pressing operation, the sliding
Claims (7)
- A method for the permanent connection of workpieces from the drinking water sector or heating installation sector such as fittings, pipes, bushings or the like by using a pressing tool, - in which the pressing tool is actuated radially inward,- in which at least one slide face arranged on the pressing tool and inclined relative to the workpiece axis and one workpiece face are brought into abutment to one another, characterized in that- the radially inwardly exerted pressing force is transmitted from the slide face onto the workpiece face and is at least partially deflected in axial direction, and- the workpieces are pressed together in axial direction.
- The method according to claim 1,
in which the slide face is opposed by a correspondingly adapted workpiece face. - The method according to claim 1 or 2,
in which at least one slide face is formed as cone segment. - The method according to any one of the claims 1 to 3,
in which the pressing tool has two slide faces which are inclined relative to the receiving area axis and which face one another. - The method according to any one of the claims 1 to 4,
in which the slide faces are formed as cone segments and the inclination angle relative to the receiving area axis is approximately 60°. - The method according to claim 1 or 4,
in which the deflection is effected through an angle between 35° and 55°, in particular 45°. - The method according to claim 1 or 6,
in which the slide face of the pressing tool is configured in a slide promoting manner.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PL13158294T PL2602062T3 (en) | 2008-02-19 | 2009-01-30 | Compression tool and attachment for a compression tool |
EP13158294.2A EP2602062B1 (en) | 2008-02-19 | 2009-01-30 | Compression tool and attachment for a compression tool |
PL09713367.2T PL2265415T6 (en) | 2008-02-19 | 2009-01-30 | Method for the permanent connection of workpieces |
DK13158294.2T DK2602062T3 (en) | 2008-02-19 | 2009-01-30 | Press tool and press tool set |
Applications Claiming Priority (2)
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DE102008010083A DE102008010083A1 (en) | 2008-02-19 | 2008-02-19 | Process for the permanent joining of workpieces, pressing tool and attachment for a pressing tool |
PCT/EP2009/051062 WO2009103605A1 (en) | 2008-02-19 | 2009-01-30 | Method for the permanent connection of workpieces, compression tool, and attachment for a compression tool |
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EP13158294.2A Division-Into EP2602062B1 (en) | 2008-02-19 | 2009-01-30 | Compression tool and attachment for a compression tool |
EP13158294.2 Division-Into | 2013-03-08 |
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EP2265415A1 EP2265415A1 (en) | 2010-12-29 |
EP2265415B1 true EP2265415B1 (en) | 2013-08-28 |
EP2265415B2 EP2265415B2 (en) | 2021-03-10 |
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EP09713367.2A Active EP2265415B2 (en) | 2008-02-19 | 2009-01-30 | Method for the permanent connection of workpieces |
EP13158294.2A Revoked EP2602062B1 (en) | 2008-02-19 | 2009-01-30 | Compression tool and attachment for a compression tool |
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EP13158294.2A Revoked EP2602062B1 (en) | 2008-02-19 | 2009-01-30 | Compression tool and attachment for a compression tool |
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US (1) | US8567034B2 (en) |
EP (2) | EP2265415B2 (en) |
CN (1) | CN101977735B (en) |
AU (1) | AU2009216886B2 (en) |
CA (1) | CA2716178C (en) |
DE (2) | DE102008010083A1 (en) |
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ES (2) | ES2435533T5 (en) |
MX (1) | MX2010009167A (en) |
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PT (2) | PT2265415E (en) |
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WO (1) | WO2009103605A1 (en) |
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DE102012105655A1 (en) | 2012-06-28 | 2014-01-02 | Viega Gmbh & Co. Kg | Press jaw and method for producing a permanent pipe connection and system of a pressing jaw and a fitting |
DE102014002191A1 (en) * | 2014-02-11 | 2015-08-13 | Spieth-Maschinenelemente Gmbh & Co. Kg | machine element |
CN107756867B (en) * | 2017-11-27 | 2023-12-29 | 吕言 | An intelligent control device of a press machine method and press system |
CN108749106B (en) * | 2018-05-28 | 2024-01-19 | 南通超达装备股份有限公司 | Quick switching device for large-scale interchangeable inserts |
US11398719B2 (en) | 2019-04-30 | 2022-07-26 | Eaton Intelligent Power Limited | Press fit condulet devices, assemblies systems and methods for electrical raceway fabrication |
US11996683B2 (en) | 2020-10-19 | 2024-05-28 | Eaton Intelligent Power Limited | Compressible condulet devices, assemblies, systems and methods for electrical raceway fabrication |
WO2022111753A1 (en) | 2020-11-24 | 2022-06-02 | Rothenberger Ag | Radial pressing tool |
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CN201154470Y (en) * | 2007-10-17 | 2008-11-26 | 朱功明 | Punching device for jointing battery holder spring with metal contact piece |
-
2008
- 2008-02-19 DE DE102008010083A patent/DE102008010083A1/en not_active Ceased
-
2009
- 2009-01-30 US US12/735,865 patent/US8567034B2/en active Active
- 2009-01-30 ES ES09713367T patent/ES2435533T5/en active Active
- 2009-01-30 PT PT97133672T patent/PT2265415E/en unknown
- 2009-01-30 CN CN200980109831.XA patent/CN101977735B/en active Active
- 2009-01-30 CA CA2716178A patent/CA2716178C/en active Active
- 2009-01-30 EP EP09713367.2A patent/EP2265415B2/en active Active
- 2009-01-30 PT PT131582942T patent/PT2602062E/en unknown
- 2009-01-30 DE DE202009018809U patent/DE202009018809U1/en not_active Expired - Lifetime
- 2009-01-30 WO PCT/EP2009/051062 patent/WO2009103605A1/en active Application Filing
- 2009-01-30 RU RU2010138613/02A patent/RU2446934C1/en active
- 2009-01-30 AU AU2009216886A patent/AU2009216886B2/en active Active
- 2009-01-30 DK DK09713367.2T patent/DK2265415T4/en active
- 2009-01-30 MX MX2010009167A patent/MX2010009167A/en active IP Right Grant
- 2009-01-30 EP EP13158294.2A patent/EP2602062B1/en not_active Revoked
- 2009-01-30 ES ES13158294.2T patent/ES2449384T3/en active Active
- 2009-01-30 PL PL13158294T patent/PL2602062T3/en unknown
- 2009-01-30 PL PL09713367.2T patent/PL2265415T6/en unknown
- 2009-01-30 DK DK13158294.2T patent/DK2602062T3/en active
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DE2725280A1 (en) * | 1977-06-01 | 1978-12-14 | Mannesmann Roehren Werke Ag | Pipe connection system for thin metal pipes - uses compressible sleeve with conical section and ring collars |
GB2205373A (en) * | 1987-05-23 | 1988-12-07 | Mie Horo Co Ltd | Method of making piping joints and joining tool |
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Also Published As
Publication number | Publication date |
---|---|
ES2449384T3 (en) | 2014-03-19 |
PL2265415T6 (en) | 2022-07-18 |
RU2446934C1 (en) | 2012-04-10 |
EP2265415A1 (en) | 2010-12-29 |
WO2009103605A1 (en) | 2009-08-27 |
EP2602062A1 (en) | 2013-06-12 |
PT2602062E (en) | 2014-03-04 |
DE202009018809U1 (en) | 2013-08-13 |
AU2009216886A1 (en) | 2009-08-27 |
US8567034B2 (en) | 2013-10-29 |
CN101977735B (en) | 2016-05-25 |
DK2602062T3 (en) | 2014-03-17 |
DK2265415T3 (en) | 2013-11-25 |
AU2009216886B2 (en) | 2012-11-01 |
CN101977735A (en) | 2011-02-16 |
DK2265415T4 (en) | 2021-05-31 |
MX2010009167A (en) | 2010-11-30 |
EP2265415B2 (en) | 2021-03-10 |
PL2265415T3 (en) | 2014-01-31 |
DE102008010083A1 (en) | 2009-08-27 |
ES2435533T3 (en) | 2013-12-20 |
EP2602062B1 (en) | 2013-12-25 |
ES2435533T5 (en) | 2021-10-28 |
PL2602062T3 (en) | 2014-05-30 |
CA2716178A1 (en) | 2009-08-19 |
CA2716178C (en) | 2014-02-25 |
US20110016696A1 (en) | 2011-01-27 |
PT2265415E (en) | 2013-11-21 |
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