EP2774725B1 - Dispositif de presse - Google Patents

Dispositif de presse Download PDF

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Publication number
EP2774725B1
EP2774725B1 EP14000641.2A EP14000641A EP2774725B1 EP 2774725 B1 EP2774725 B1 EP 2774725B1 EP 14000641 A EP14000641 A EP 14000641A EP 2774725 B1 EP2774725 B1 EP 2774725B1
Authority
EP
European Patent Office
Prior art keywords
pressing
jaws
pressing jaws
receptacle
center plane
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.)
Not-in-force
Application number
EP14000641.2A
Other languages
German (de)
English (en)
Other versions
EP2774725A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rems GmbH and Co KG
Original Assignee
Rems GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rems GmbH and Co KG filed Critical Rems GmbH and Co KG
Publication of EP2774725A1 publication Critical patent/EP2774725A1/fr
Application granted granted Critical
Publication of EP2774725B1 publication Critical patent/EP2774725B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 device according to the preamble of claim 1.
  • Pressing devices in the form of pressing tongs are mainly used in the sanitary installation to connect pipes or pipe sections via fittings, so-called fittings.
  • the connectors are slid over the ends of two tubes and radially plastically deformed to achieve a tight and tight connection between the two tubes via the connector.
  • the pressing tongs have two press jaws for this purpose, each with an integrated system-specific press contour. Often such compression must be made in places that are difficult to achieve with the crimping pliers.
  • the invention has the object of providing the generic pressing device in such a way that it can be performed with compressions in areas that are difficult to achieve.
  • the angle at which the axis of the receptacle is inclined to the transverse center plane of the pressing jaws in a range between about 30 ° and about 60 °.
  • a preferred angle is about 45 °. Such a pressing device can be used for most applications.
  • the pressing jaws have recesses in the end sections, which form the receptacle in the closed position of the pressing jaws.
  • the end portions are inclined to the remaining part of the pressing jaws. In this case, it is expedient if the axis of the depressions runs perpendicular to the transverse center plane of these oblique end portions.
  • the oblique end portions allow the problem-free approach of the pressing device to the parts to be pressed, if they are unfavorable example in room corners.
  • the end portions project beyond the one broad side of the pressing jaws. This facilitates the handling of the pressing device in critical installation conditions.
  • the recesses advantageously have mutually parallel edges, each extending in a direction perpendicular to the axis of the receptacle Lie flat.
  • the depression having parts of the pressing jaws are characterized strong enough that they can absorb the forces occurring during the plastic deformation of the connecting pieces.
  • the one edge of the recesses is advantageously formed reinforced over part of its length. This contributes to the high load capacity of the corresponding pressing jaw area during the pressing process.
  • This reinforcement is advantageously achieved in that the end portion has a projecting over its top projection, which reinforces the edge of the recesses. It is basically possible to reinforce the entire edge of the depression. However, it is also sufficient to provide the edge reinforcement only where high loads act on the recess edge.
  • a secure compression of the parts in the receptacle is advantageously ensured by the fact that the end faces of the projections are in the closed position of the pressing jaws together. These end faces are formed flat in an advantageous manner.
  • the end faces of the projections preferably lie in the mutually facing end faces of the pressing jaws.
  • the end portions are formed integrally with the pressing jaws.
  • the pressing tongs can be manufactured inexpensively.
  • the two jaws of the press ring are each provided with a recess which form the receptacle in the closed position of the jaws.
  • the jaws of the press ring can thus be pivoted apart for insertion of the workpiece to be pressed by means of the pressing jaws of the pressing device. Subsequently, the pressing jaws of the pressing device are pivoted, for example by means of a motor drive against each other so that the jaws of the pressing ring are closed. The lying in the wells workpiece is thereby pressed radially.
  • the transverse center plane of the pressing ring is preferably at an angle deviating from 90 ° to the transverse center plane of the pressing jaws.
  • the pressing device With the pressing device connecting pieces are plastically deformed, which are stuck on pipes to be joined together.
  • the pressing device is mainly used in sanitary and heating technology.
  • the joints to be deformed may be made of metal and / or plastic. Due to the plastic deformation, the pipes to be connected together and the connecting piece with each other safely connected. This Radialpresstechnik is known and is therefore not explained in detail.
  • the pressing device is a pressing tongs with two mutually pivotable pressing jaws 1 and 2, in the in Fig. 1 shown closed position with flat end faces 3, 4 abut each other.
  • the end faces 3, 4 are each provided with a recess 5, 6, which form a receptacle 7 for the part to be pressed (not shown) in the closed position of the pressing jaws 1, 2.
  • the receptacle 7 has in the illustrated embodiment polygonal outline, but may also have any other suitable outline shape, for example, be circular.
  • the shape of the receptacle 7 is determined by the so-called pressing contour, which determines how the connecting pieces are pressed radially on the tubes.
  • the two pressing jaws 1, 2 are arranged mirror-symmetrically to each other and have substantially the same thickness. At their opposite outer sides 8, 9 is in each case a connecting tab 10, 11 at. With the two connecting straps 10, 11, the two pressing jaws 1, 2 are hinged together.
  • the connecting straps 10, 11 are of the same design and extend perpendicular to the longitudinal center plane of the pressing tongs. Near their two ends, the connecting straps 10, 11 are each provided with a passage opening for bolts 12, 13. They also pass through the pressing jaws 1, 2 lying between them.
  • the connecting straps 10, 11 and the pressing jaws 1, 2 are secured axially in a known manner on the pins 12, 13.
  • the axes 14, 15 of the bolts 12, 13 form the pivot axes for the pressing jaws 1, 2.
  • the end faces 3, 4 of the pressing jaws 1, 2 each have an obtuse angle in inclined surfaces 16, 17 (FIG. FIGS. 2 and 3 ), with which the pressing jaws 1, 2 lie flat against each other in the open position.
  • the transition of the end faces 3, 4 in the inclined surfaces 16, 17 is approximately equal to the connecting straps 10, 11th
  • the two pressing jaws 1, 2 are each designed as a two-armed lever.
  • the pressing jaw 1 thus has the arms 18, 19 and the pressing jaw 2 the arms 20, 21.
  • the arms 18 to 21 each taper in the direction of their free end.
  • the arms 18, 20 are provided with the recesses 5, 6.
  • the other arms 19, 21 have mutually facing inclined surfaces 22, 23, in the in Fig. 1 shown closed position of the pressing tongs in the direction of their free end diverging to each other.
  • the inclined surfaces 22, 23 are flat and lie at an obtuse angle to the inclined surfaces 16, 17. At the transition between the inclined surfaces 16, 22 and 17, 23 is in each case a part-circular recess 24, 25.
  • the curved bottom 26, 27 of the recesses 24, 25th connects the inclined surfaces 22, 23 with the inclined surfaces 16, 17th
  • the two arms 19, 21 of the pressing jaws 1, 2 are loaded by at least one (not shown) compression spring which engages in each case a blind hole 28 in the mutually facing inclined surfaces 16, 17 of the two pressing jaws 1, 2.
  • a blind hole 28 of the pressing jaw 1 is visible.
  • a corresponding blind hole is also provided in the pressing jaw 2.
  • the compression spring ensures that the pressing jaws 1, 2, if they are not connected to a drive device, in the in Fig. 1 shown closed position to be pivoted.
  • a rectangular tab 29 which projects in the direction of the free end of the pressing jaw arms 19, 21 of the connecting straps 10, 11 and which is slightly thinner in the illustrated embodiment as the connecting tab 10, 11.
  • the connecting straps 10, 11 and the tabs 29 can also be the same thickness. It is also possible to form the tabs 29 thicker than the connecting straps 10, 11, which are advantageously integrally formed with the tabs 29.
  • the tabs 29 each have a through opening 30 in the middle, which form a receptacle for the connection of the pressing tongs to a (not shown) motor drive device.
  • a (not shown) motor drive device Such drive devices for actuating the pressing tongs are known and are therefore explained only briefly.
  • Such a drive device has two connecting arms, which are connected by a locking pin with the tabs 29.
  • the locking pin is inserted through the through holes 30 of the tabs 29 and through corresponding openings in the connecting arms and axially secured in a suitable manner.
  • the pressing tongs is rigidly connected to the drive device. It has a plunger with pressure rollers, which roll on the inclined surfaces 22, 23 upon actuation of the pressing tongs.
  • the plunger of the drive motor is extended from a starting position in the direction of the pressing pliers, wherein the pressure rollers on the inclined surfaces 22, 23 of the pressing jaws 1, 2 arrive.
  • the receptacle 7 has an axis 31 (FIG. Fig. 2 ), which lies at an acute angle ⁇ to a transverse center plane 32 of the pressing jaws 1, 2.
  • the angle ⁇ can have any suitable value. It is preferably in a range between about 30 ° and about 60 °, in particular about 45 °. Due to the inclination of the receptacle 7, the pressing tongs can also be used where there is little room for the pressing tongs.
  • the receptacle 7 or the recesses 5, 6 are provided in an end section 33, 34 of the arms 18, 20 of the pressing jaws 1, 2.
  • the end portions 33, 34 are integrally formed with the pressing jaws 1, 2 in the embodiment. In principle, however, it is also possible to manufacture the end sections 33, 34 with the recesses 5, 6 as separate parts, which are subsequently connected to the remaining part of the pressing jaws 1, 2, for example by means of screws, rivets, latching spring pressure pieces and the like.
  • the end sections 33, 34 protrude beyond the one broad side 9, 35 of the pressing jaws 1, 2 (FIG. Fig. 2 ).
  • the end sections 33, 34 protrude only so far beyond the corresponding broad sides 9, 35 that the end sections 33, 34 do not break as a result of the high pressing forces.
  • the parts to be pressed can be inserted, the arms 18, 20 in the adjoining the end portions 33, 34 region corresponding recesses 37, of which in Fig. 2 the recess of the pressing jaw 1 is shown.
  • the recesses 37 extend to the broad side 9, 35 of the pressing jaws 1, 2 and are adapted in their outline shape to the outline shape of the recesses 5, 6.
  • the parts to be pressed also extend through the recesses 37 of the pressing jaws 1, 2.
  • the end sections 33, 34 each have a transverse center plane 36 (FIG. Fig. 2 ), which is perpendicular to the axis 31 and at the angle ⁇ to the transverse center plane 32 of the pressing jaws 1, 2 extends. If the angle ⁇ is 45 °, then the angle ⁇ also has the value of 45 °.
  • the end portions 33, 34 may also be provided so that their transverse center plane 36 in the transverse center plane 32 of the pressing jaws 1, 2 is located.
  • the axis 31 of the receptacle 7 is in this case at the angle ⁇ to the transverse center plane 32nd
  • the recesses 5, 6 have mutually parallel edges 38, 39, each extending in planes perpendicular to the axis 31. Between the edges 38, 39 of the recesses 5, 6, the corresponding pressing contour 40 is provided in the wall of the recesses, with which the parts are pressed radially.
  • the in Fig. 2 lower, over the broad side 35 projecting edge 39 extends to about half the thickness of the pressing jaw 1 and its arm 18.
  • the opposite edge 38 connects to a projection 41 which on the broad side 35 opposite broad side 42 (FIGS. Fig. 2 ) of the pressing jaws 1, 2 protrudes. As it turned out Fig. 1 results, the projections 41 of the pressing jaws 1, 2 in plan view approximately the shape of a quarter circle.
  • the projections 41 lie flat against one another with their mutually facing end faces, which lie in the end faces 3, 4 of the arms 18, 20 of the pressing jaws 1, 2.
  • the top 43 of the projections 41 is flat.
  • the upper sides 43 of the projections 41 go at an obtuse angle into the edges 38 containing upper sides 45 of the end portions 33, 34 of the pressing jaws 1, 2 over. Due to the protrusions 41, the end portions 33, 34 in the region of the recesses 5, 6 sufficient strength, so that the inserted into the receptacle 7 parts can be reliably compressed radially.
  • the edge 44 opposite outer side 46 of the projections 41 lies on the mantle of an imaginary cylinder.
  • the connecting plate 10 has in the region of these projections 41 a provided on the adjacent longitudinal side part-circular recess 47th so that the projections 41 can be moved freely relative to the connecting plate 10 during the pressing process.
  • end sections 33, 34 consist of independent components which are connected to the pressing jaws 1, 2, materials can be used for the end sections 33, 34 and the pressing jaws 1, 2 which are particularly advantageous for the intended application.
  • the 4 and 5 show a pressing device, the pressing jaws 1, 2 part of an intermediate pliers, to which a pressing ring 48 is attached. He is provided with the receptacle 7, which receives the workpieces to be pressed. In contrast to the previous embodiment, the recess 7 is no longer provided in the integrally formed with the pressing jaws 1, 2 end portions 33, 34.
  • the pressing ring 48 has the two jaws 49, 50, which are connected at their end facing away from the pressing jaws 1, 2 end articulated to each other via a hinge point 51.
  • the hinge point can be a bolt, for example, which passes through the two jaws 49, 50 at the free end and is axially secured in a suitable manner.
  • the two jaws 49, 50 are essentially mirror-symmetrical to one another.
  • the free ends of the jaws 49, 50 are connected to the free ends of the pressing jaws 1, 2.
  • This connection is detachable, so that the pressing ring 48 can be removed from the pressing jaws 1, 2 if necessary. For example, a damaged press ring can be easily replaced. It is also possible to connect pressing rings 48 with different pressing contours and / or differently sized receptacles 7 to the pressing jaws 1, 2.
  • the pressing ring 48 has the transverse center plane 36, which, as in the previous embodiment, at the angle ⁇ to the transverse center plane 32 of the pressing jaws 1, 2 lies ( Fig. 4 ).
  • the axis 31 of the receptacle 7 is at the angle ⁇ to the transverse center plane 32 of the pressing jaws 1, 2nd
  • the pressing ring 48 can be mounted in the inclined position with respect to the pressing jaws 1, 2, the pressing jaws 1, 2 are provided at its one end with a recess 52 which in Fig. 4 can be seen for the press jaw 1.
  • the other pressing jaw 2 has a corresponding recess. It is bounded by two abutting stop surfaces 53, 54 which are at right angles to each other.
  • the two jaws 49, 50 each have corresponding counter stop surfaces 55, 56, with which they rest flat against the stop surfaces 53, 54 of the pressing jaws 1, 2. In this way, the pressing ring 48 is properly positioned and held in its inclined position with respect to the pressing jaws 1, 2.
  • the jaws 49, 50 are connected by appropriate fastening means with the pressing jaws 1, 2.
  • the pressing jaws 1, 2 of the intermediate pliers are provided with caps, which engage with corresponding press ring 48 in corresponding recesses in the jaws 49, 50 of the pressing ring 48.
  • the intermediate pliers are connected to the motor drive device and actuates the pressing ring 48 during the pressing process.
  • the pressing jaws 1, 2 of the connected to the drive device intermediate pliers are pivoted toward each other in the direction that the arms 18, 20 of the pressing jaws 1, 2 from each other.
  • the opened pressing jaws 1, 2 of the intermediate pliers are attached to the jaws 49, 50 of the pressing ring 48 surrounding the workpiece in such a way that the intermediate pliers and the pressing ring 48 are positively connected to one another via the caps and recesses.
  • the abutment surfaces 53, 54 and the counter-abutment surfaces 55, 56 ensure that the pressing ring 48 and the intermediate pliers are accurately connected to each other.
  • the pressing jaws 1, 2 of the intermediate pliers are characterized by acting between them Compression spring, as described with reference to the previous embodiment, loaded in the direction of its closed position, whereby the coupling of the intermediate pliers is made easier to the pressing ring 48.
  • the jaws 49, 50 are closed via the arms 18, 20 of the pressing jaws 1, 2, thereby radially compressing the workpiece lying in the receptacle 7 ,
  • the in Fig. 5 shown closed position are the free ends of the jaws 49, 50 of the pressing ring 48 with side surfaces 57, 58 flat against each other.
  • the receptacle 7 in the press ring 48 has the same design as the basis of the pressing tongs according to the Fig. 1 to 3 has been described.
  • the pressing jaws 1, 2 have in this embodiment no depressions, which are provided in the jaws 49, 50 of the pressing ring 48.
  • the actuation of the pressing ring 48 takes place in the manner described on the pressing jaws 1, 2, in the same manner as in the pressing tongs according to the Fig. 1 to 3 be pressed during the pressing process with the aid of the brakes 29 connected to the motor drive device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Press Drives And Press Lines (AREA)

Claims (4)

  1. Dispositif de presse avec au moins deux mâchoires de compression (1, 2) dont au moins l'une est réglable d'une position de fermeture dans une position d'ouverture, avec un logement (17) pour une pièce à compresser dont l'axe (31) se situe sous un angle (α) différent de 90° par rapport au plan médian transversal (32) des mâchoires de compression (1, 2) et qui est prévu sur une bague de compression (48) qui est raccordée aux mâchoires de compression (1, 2) et comporte deux mâchoires (49, 50) reliées l'une à l'autre de manière articulée qui sont raccordées sur les extrémités des mâchoires de compression (1, 2) et sur leurs extrémités opposées aux mâchoires de compression (1, 2) sont reliées l'une à l'autre de manière articulée,
    caractérisé en ce que sur l'extrémité libre, les mâchoires de compression (1, 2) sont munies de surfaces de butée (53, 54) situées à angle droit l'une par rapport à l'autre sur lesquelles les mâchoires (49, 50) de la bague de compression (48) sont adjacentes par des contre-surfaces de butée (55, 56) antagonistes.
  2. Dispositif de presse selon la revendication 1,
    caractérisé en ce que l'axe (31) du logement (7) se situe sous un angle (α) compris entre environ 30° et environ 60°, de préférence d'environ 45° par rapport au plan médian transversal des mâchoires de compression (1, 2).
  3. Dispositif de presse selon la revendication 1 ou 2, caractérisé en ce que les mâchoires (49, 50) de la bague de compression (48) sont munies chacune d'une cavité qui en position fermée des mâchoires (49, 50) forme le logement (7).
  4. Dispositif de presse selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que le plan médian transversal (36) de la bague de compression (48) se situe sous un angle (β) différent de 90° par rapport au plan médian transversal (32) des mâchoires de compression (1, 2).
EP14000641.2A 2013-03-05 2014-02-24 Dispositif de presse Not-in-force EP2774725B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310004029 DE102013004029A1 (de) 2013-03-05 2013-03-05 Pressvorrichtung

Publications (2)

Publication Number Publication Date
EP2774725A1 EP2774725A1 (fr) 2014-09-10
EP2774725B1 true EP2774725B1 (fr) 2016-04-27

Family

ID=50193176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14000641.2A Not-in-force EP2774725B1 (fr) 2013-03-05 2014-02-24 Dispositif de presse

Country Status (3)

Country Link
EP (1) EP2774725B1 (fr)
DE (1) DE102013004029A1 (fr)
ES (1) ES2581153T3 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20016060U1 (de) * 2000-09-16 2000-12-28 Volp Rainer Presszange
DE20018312U1 (de) * 2000-10-26 2001-05-10 Franz Viegener Ii Gmbh & Co Kg Preßwerkzeug
DE20318618U1 (de) * 2003-12-02 2005-04-14 Gustav Klauke Gmbh Verpressbackenpaar für ein Presswerkzeug
DE202004008280U1 (de) * 2004-05-25 2004-08-19 Graaf, Helmut Presszange zum Verpressen von Installationsrohren an schwer zugänglichen Stellen
DE102007013706B3 (de) * 2007-03-22 2008-11-13 Rothenberger Ag Verpressvorrichtung für rohrförmige Werkstücke
DE102009012199B3 (de) * 2009-03-07 2010-06-10 Rothenberger Ag Verpressvorrichtung für rohrförmige Werkstücke

Also Published As

Publication number Publication date
DE102013004029A1 (de) 2014-09-11
EP2774725A1 (fr) 2014-09-10
ES2581153T3 (es) 2016-09-01

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