EP1849560A2 - Outil de pression doté d'un élément arrière de presse en forme de couche - Google Patents

Outil de pression doté d'un élément arrière de presse en forme de couche Download PDF

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Publication number
EP1849560A2
EP1849560A2 EP07106817A EP07106817A EP1849560A2 EP 1849560 A2 EP1849560 A2 EP 1849560A2 EP 07106817 A EP07106817 A EP 07106817A EP 07106817 A EP07106817 A EP 07106817A EP 1849560 A2 EP1849560 A2 EP 1849560A2
Authority
EP
European Patent Office
Prior art keywords
layers
pressing
press tool
tool according
pressing jaw
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
Application number
EP07106817A
Other languages
German (de)
English (en)
Other versions
EP1849560B1 (fr
EP1849560A3 (fr
Inventor
Frank Hoffmann
Frank Schulte
Ulrich Arning
Sudi Sinoplu
Manfred König
Dirk Opalla
Reiner Mester
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.)
Viega GmbH and Co KG
Original Assignee
Viega 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 Viega GmbH and Co KG filed Critical Viega GmbH and Co KG
Publication of EP1849560A2 publication Critical patent/EP1849560A2/fr
Publication of EP1849560A3 publication Critical patent/EP1849560A3/fr
Application granted granted Critical
Publication of EP1849560B1 publication Critical patent/EP1849560B1/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 tool, with at least two pressing jaw elements, with at least one joint element, wherein at least one pressing jaw element is composed of at least two layers, wherein at least two pressing jaw elements each have a pressing contour, wherein at least two pressing jaw elements each have an actuating surface and wherein in each case at least one joint element each at least two pressing jaw elements hingedly interconnected.
  • pressing tools are used to positively and positively connect a mated with a pipe pipe by cold forming the connector with the fitting.
  • the pressing jaw elements of these pressing tools are made in one piece, for example by drop forging or precision casting, in order to be able to exert the high pressing forces required.
  • the pressing tools are driven by hydraulic pressing machines.
  • pressing forces of up to 100 kN and beyond can be generated.
  • pressing tools in the form of pressing rings or compression chains are often used.
  • a second pressing tool in particular a Gelenkzugbacke is used, which engages the pressing ring or the pressing chain and thus enables compression.
  • the invention is therefore based on the technical problem of specifying a pressing tool and a method for its production, which meets the requirements of the high pressing forces requirements and can be provided quickly and inexpensively.
  • the invention has thus recognized that a multi-layered design of the pressing jaw elements enables a cost-effective and rapid production of a pressing tool and can withstand the required high pressing forces by materially joining at least two layers.
  • the stresses caused by the high compressive forces in the layers can not lead to a deformation of the layers and thus of the pressing jaw element, since the layers mutually support against displacement and twisting caused by the cohesive connection of the layers.
  • This sandwich construction of the pressing jaw elements has particular advantages.
  • An inventive pressing tool may be characterized in that at least one connecting element is provided, wherein the connecting element is articulated with at least one hinge element and at least two pressing jaw elements hingedly interconnected.
  • pressing tools can be constructed with complicated closing kinematics, such as press jaws or joint jaws.
  • Such pressing tools can be connected directly to press machines.
  • a holding element is provided on the connecting element.
  • the pressing tool can then be connected via a bolt with the pressing machine and used for direct pressing of a fitting / pipe connection or actuate another pressing tool.
  • multi-link press chains can be configured by providing a connector.
  • a particularly preferred embodiment is characterized in that at least two layers are materially connected by a welded joint.
  • the layers can be welded in this way efficiently only in the necessary places by welds.
  • the weld seams can be arranged on the pressing jaw element such that they are not located in the region of the pressing contour or the actuating surfaces. In this case, time-consuming reworking of the weld seams can be unnecessary, as a result of which further costs and time can be saved.
  • At least two layers can be adhesively bonded by an adhesive bond.
  • the adhesive bond can be arranged between two layers, so that the adhesive bond can be applied quickly.
  • the pressing tool can be directly mounted further, whereby a further time savings can be achieved.
  • At least two layers can be positively connected by at least one rivet connection.
  • rivets can be provided which pre-fix the layers against each other. The cohesive connection can then be made without the risk of shifting the layers.
  • At least two layers can be non-positively connected by at least one screw connection. This allows the Prefixation of the layers are made more stable and also be easily separated again by loosening the screws before a cohesive connection of individual layers is made.
  • a particularly preferred embodiment is characterized in that the layers are made of sheets. Sheets are prefabricated in abundant selection and quality available and are particularly suitable for use for the aforementioned pressing tool according to the invention.
  • the technical problem is also solved by a method for producing a pressing jaw element for a pressing tool, wherein the layers are produced in a first step, wherein in a second step, the layers are arranged one above the other and wherein in a final step, the layers are materially interconnected ,
  • the layers can be made from sheet metal.
  • the layers can be produced by laser cutting, in particular be cut from sheets.
  • the layers can be bonded together by welding and / or gluing together.
  • the layers can be connected to one another by riveting and / or screwing in a single step before the integral connection.
  • Fig. 1a and their view Z in Fig. 1b show a pressing tool, designed as a press ring 1, with two pressing jaw elements 3, with a joint element 5, wherein both pressing jaw elements 3 are constructed of two layers 7, wherein both pressing jaw elements 3 each have a pressing contour 9 wherein both pressing jaw elements 3 each have an actuating surface 11 and wherein one joint element 5 connects both pressing jaw elements 3 in an articulated manner.
  • each element can have an independent form of its own. If, for example, more than two pressing jaw elements 3 are present, an actuating surface 11 can also be designed only on two pressing jaw elements, as can be seen from the explanation of FIGS. 3a and 3b below. Of course, too Layers 7 each have different thicknesses and shapes.
  • the two layers 7 are in each case materially connected to one another by weld seams 13.
  • the pressing tool 1 with its pressing contours 9 is placed around the circumference of a fitting (not shown), by applying a clamping force in the direction of the arrows A to the actuating surfaces 11, the fitting can be crimped with a tube (not shown) inserted into the fitting ,
  • the welds 13 counteract the stresses within the individual layers 7, which are caused by the high pressing forces, so that the layers 7 do not deform against each other and the pressing jaw elements 3 retain their shape and can cause an exact compression of the fitting on the pressing contours 9 ,
  • Fig. 2a and in their view Y in Fig. 2b an embodiment of the pressing tool is shown as pressing jaw 15, with two pressing jaw members 3, with two hinge elements 5, wherein both pressing jaw members 3 of three layers 7, which may be made of sheets constructed wherein both pressing jaw elements 3 each have a pressing contour 9, wherein both pressing jaw elements 3 each have an actuating surface 11 and wherein both joint elements 5 connect both pressing jaw elements 3 hinged together.
  • the shapes of the elements of the pressing tool 15 are, for example, the two Press contours 9 differently designed from the previous embodiment.
  • welds 13 are provided for material connection of all three layers 7, wherein the welds 13 are arranged so that they do not lie in the region of the actuating surfaces 11 or the pressing contour 9 and a costly reworking of the welds 13 can be omitted.
  • connecting elements 17 are shown in Fig. 2a and 2b, wherein both connecting elements 17 are pivotally connected to both hinge elements 5 and connect the two pressing jaw members 3 articulated together. Furthermore, the layers 7 are connected in a form-fitting manner by rivet connections 19.
  • a further holding element 21, which is arranged on a respective connecting element 17, serves to connect the pressing tool 15 to a pressing machine (not shown).
  • Such a pressing tool 15 can be applied directly to a fitting (not shown) with its pressing contours 9 and used for pressing with a tube (not shown).
  • the pressing machine exerts a force in the direction of the arrows B on the actuating surfaces 11 of the pressing jaw elements 3.
  • FIG. 3a and its section XX in Fig. 3b an alternative embodiment of a pressing tool is shown as a pressing chain 23, with four pressing jaw members 3, with six hinge elements 5, wherein each pressing jaw member 3 of three layers 7 is constructed, each Pressing jaw member 3 each having a pressing contour 9, wherein two pressing jaw members 3 each have an actuating surface 11 and wherein two joint elements 5 each two pressing jaw members 3 articulated connect with each other.
  • connecting elements 17 are provided, wherein in each case one connecting element 17 is pivotally connected to two articulated elements 5 and connects two pressing jaw elements 3 in an articulated manner.
  • the layers 7 are each connected by adhesive layers 25 cohesively.
  • a pressing is effected analogously to the embodiment shown in Fig. 1a and 1b by clamping force in the direction of arrows A on the actuating surfaces 11 of the two pressing jaw members 3.
  • At least two layers can be non-positively connected by at least one screw.
  • the properties of the pressing tool can be favorably influenced by varying the material of the elements of the pressing tool, in particular of the individual layers, for example by combining layers which are made of different hard steels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Adornments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP07106817A 2006-04-24 2007-04-24 Outil de pression doté d'un élément arrière de presse en forme de couche Not-in-force EP1849560B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006019397 2006-04-24

Publications (3)

Publication Number Publication Date
EP1849560A2 true EP1849560A2 (fr) 2007-10-31
EP1849560A3 EP1849560A3 (fr) 2008-04-23
EP1849560B1 EP1849560B1 (fr) 2011-03-30

Family

ID=38289094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106817A Not-in-force EP1849560B1 (fr) 2006-04-24 2007-04-24 Outil de pression doté d'un élément arrière de presse en forme de couche

Country Status (4)

Country Link
EP (1) EP1849560B1 (fr)
AT (1) ATE503611T1 (fr)
DE (1) DE502007006817D1 (fr)
DK (1) DK1849560T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013113665B4 (de) * 2013-12-06 2015-09-03 Fette Compacting Gmbh Presse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416294A (en) * 1933-05-13 1934-09-13 Schraders Son Inc Ferrule contracting tool
WO2003049883A1 (fr) * 2001-12-08 2003-06-19 Gustav Klauke Gmbh Dispositif de compression
US20030230131A1 (en) * 2002-06-17 2003-12-18 Emerson Electric Co. Method and apparatus for assuring or determining appropriate closure of a crimp assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416294A (en) * 1933-05-13 1934-09-13 Schraders Son Inc Ferrule contracting tool
WO2003049883A1 (fr) * 2001-12-08 2003-06-19 Gustav Klauke Gmbh Dispositif de compression
US20030230131A1 (en) * 2002-06-17 2003-12-18 Emerson Electric Co. Method and apparatus for assuring or determining appropriate closure of a crimp assembly

Also Published As

Publication number Publication date
ATE503611T1 (de) 2011-04-15
DE502007006817D1 (de) 2011-05-12
DK1849560T3 (da) 2011-07-18
EP1849560B1 (fr) 2011-03-30
EP1849560A3 (fr) 2008-04-23

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