EP2450149B1 - Werkzeug mit verschiedenen Wirkbereichen - Google Patents

Werkzeug mit verschiedenen Wirkbereichen Download PDF

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Publication number
EP2450149B1
EP2450149B1 EP11186855.0A EP11186855A EP2450149B1 EP 2450149 B1 EP2450149 B1 EP 2450149B1 EP 11186855 A EP11186855 A EP 11186855A EP 2450149 B1 EP2450149 B1 EP 2450149B1
Authority
EP
European Patent Office
Prior art keywords
jaws
tool
contour
pair
tool according
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
Application number
EP11186855.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2450149A3 (de
EP2450149A2 (de
Inventor
Frank Dipl.-Phys.-Ing. Hofmann
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 EP2450149A2 publication Critical patent/EP2450149A2/de
Publication of EP2450149A3 publication Critical patent/EP2450149A3/de
Application granted granted Critical
Publication of EP2450149B1 publication Critical patent/EP2450149B1/de
Active 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
    • 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

Definitions

  • the invention relates to a tool for machining a workpiece, in particular for pressing, holding and / or cutting a pipe, having a first upper jaw and a first lower jaw having first pair of jaws, with a formed between the front ends of the first jaws first effective range, with a first inlet contour formed between the rear ends of the first jaws and with a holder movably receiving the first jaws independently of each other, wherein the first jaws are pivotable between an open position and a closed position.
  • Tools of the type mentioned are known from the prior art and are used, for example, in the drinking water or heating installation area to press pipes during installation, if necessary via fittings with each other or with appropriate fittings or sleeves. Suitable pipes and fittings are also known from the prior art.
  • a so-called pressing machine is often used, on which a tool is attached and which essentially pushes a bolt between the rear ends of the jaws of the tool along the inlet contour to close the front ends of the jaws.
  • the workpiece is between the jaws of the tool and is pressed.
  • two pipes which are connected via a fitting.
  • the present invention Based on this prior art, the present invention, the technical problem of providing a tool by which in a process at least a first and a second effect can be transferred independently of time on the tool.
  • the second pair of jaws creates a second effective range independent of the first effective range. Since the second jaws open and close independently of the first pair of jaws and the inlet contours of the jaw pairs are formed differently, for example, a temporal offset of a first and second effect can be achieved. In this way, the available power of a pressing machine can be optimally utilized, since now two different points of a workpiece can be pressed one after the other and the power for processing the entire workpiece does not have to be applied all at once.
  • a further embodiment of the tool according to the invention is characterized in that the first active contour and the second active contour are formed differently. This makes it possible to transmit different effects on the workpiece in one operation.
  • this embodiment realizes an alternative to a saw tool for fixing and cutting a workpiece.
  • any further combination of active contours is conceivable.
  • the workpiece can be both held and pressed with a tool according to the invention or pressed and severed or severed twice.
  • the effects mentioned here are not meant to be exhaustive.
  • the effect can for example also from the scoring of the workpiece, the partial severing, deforming or embossing. Due to the arbitrarily variable inlet contours, it is possible to produce arbitrarily fine gradations of the effect, for example, when holding.
  • a slightly greater application of force to the workpiece by the jaws and a pinching of the tool can be achieved, which in turn would pass continuously with even greater force application in a pressing.
  • a pinching of the tool can be achieved, which in turn would pass continuously with even greater force application in a pressing.
  • a switch could be the effect of a pair of jaws.
  • the pairs of jaws are arranged offset along a workpiece to be inserted. In this way, effects on areas that are arbitrarily close together, be exercised.
  • the holder has at least two axes, wherein the first axis is the common axis of rotation for the upper jaws and the second axis is the common axis of rotation for the lower jaws.
  • the tool can on the one hand be made compact, on the other hand, most workpieces to be machined such as pipes, fittings or rods at least over the effective range only small changes, for example, their radius, so that the upper and lower dies can share a rotation axis.
  • two swivel axes instead of one will continue reduces a shearing motion and makes it possible to use a pressing machine which closes the front ends by pushing the rear ends of the jaws apart.
  • At least one pair of jaws is formed integrally with an active contour. In this way, the production of the pair of jaws is considerably simplified and made more economical and simpler, in addition, thereby the tool itself is considerably simplified and achieved a lower error rate.
  • a further embodiment of the tool according to the invention is characterized in that a third pair of jaws having a third upper jaw and a third lower jaw is provided, that between the front ends of the third jaws a third active area is formed, that between the rear ends of the third jaws third inlet contour is formed, that the holder, the third jaws independently and independently of the first jaws and the second jaws movably receives that the third jaws between an open position and a closed position are pivotable and that the third inlet contour is different from the first inlet contour and / or the second inlet contour is formed, and that the second pair of jaws is arranged between the first pair of jaws and the third pair of jaws.
  • a third pair of jaws having a third upper jaw and a third lower jaw is provided, that between the front ends of the third jaws a third active area is formed, that between the rear ends of the third jaws third inlet contour is formed, that the holder, the third jaws independently and independently of the first jaws and the second jaws movably receive
  • first upper jaw and the third upper jaw and the first lower jaw and the third lower jaw are rigidly connected to one another via connecting elements.
  • the tool is given more stability and a simultaneous guidance of the corresponding upper and lower jaws is ensured, regardless of how the bolt pushes the inlet contours of the first and third jaws apart.
  • the first pair of jaws and the third pair of jaws on the same inlet contour.
  • This has the advantage that a simultaneous closing of the jaws is also ensured via the inlet contour and the force from the bolt is also transmitted substantially equal to the first and the third jaws.
  • At least four tool elements may be provided, wherein in each case a front tool element and a rear tool element in contact with the second upper jaw and a respective front tool element and a rear tool element are in contact with the second lower jaw. At the same time, the tool elements participate in the movement of the second jaws.
  • the second active contour is defined in this case by the tool elements.
  • the properties of the tool elements can be adapted to the workpiece to be machined, without losing the entire jaw to have to modify. These properties can be, for example, the shape or the material of the tool elements. This has an economic effect on the production, among other things, since only the tool elements made of a certain material or must be cured, but not the entire jaw. It is also conceivable that the tool can be used flexibly by merely replacing the tool elements.
  • the tool elements can independently take over the function of a pressing, holding or cutting tool element as the jaws. However, the functions of the tool elements are not limited to this.
  • the first jaws and / or third jaws it is advantageous for the first jaws and / or third jaws to have receptacles for the tool elements, wherein the tool elements can move relative to the jaws and relative to one another.
  • the tool elements are restricted by their movements in the jaws surrounding the tool elements.
  • These recordings can be designed, for example, in the form of oblong holes into which the tool elements partially engage and which represent a guide rail for the tool elements.
  • the tool members are biased by springs which hold the upper tool members in contact with the second upper jaw and the lower tool members in contact with the second lower jaw. Only by the pressure of the second jaws on the tool elements, the tool elements are moved in the direction of the workpiece to be machined. In this way, follow the tool elements by constantly conditioning the Movement of the jaws and thus participate in the movement of the second jaws.
  • At least one second jaw has at least one protrusion, preferably a protrusion for each tool element.
  • the elevations of the second jaws act on the tool elements substantially simultaneously with a force.
  • the original shearing movement is counteracted, as it is due to the arrangement of a tool according to the invention.
  • the area of the workpiece which is positioned closer to the axes of rotation, first comes into contact with the active contour and only then the area of the workpiece, which is located more remote from the axis of rotation.
  • a further embodiment of the tool according to the invention is characterized in that at least one active contour is a pressing contour.
  • the active contours can be made possible by the design of the active contours as pressing contours a compression of, for example, pipes with fittings.
  • a mechanical durability can now For example, be selected with the first pair of jaws a hexagonal shape as a press contour. This contour has a positive effect on the mechanical durability compared to a cylindrical pressing contour.
  • a compression with the same hexagonal press contour would have a negative impact on the tightness. Therefore, the area is pressed with the sealing ring with the second pair of jaws with a cylindrical pressing contour.
  • all active contours are configured as pressing contours. But it is also conceivable that the active contours have different effects, such as holding the workpiece with subsequent pressing.
  • the active contours specified here are also to be understood as examples only, since other active contours, for example oval, polygonal, or irregular active contours, may also be provided.
  • At least one active contour is a holding contour and at least one active contour is a cutting contour.
  • the cutting of the workpiece takes place quickly, easily and space-saving and the workpiece does not have to be fixed first and then cut with a saw.
  • the holding can be achieved in that the active contour substantially corresponds to the circumferential contour of the workpiece and this is frictionally held by the tool. This additionally ensures that the workpiece, For example, a round tube is not pressed in the cutting process by the cutting elements in a, for example, oval shape, since it is held by the retaining contour in the original shape.
  • the first and third active contours are the same. In this way, for example, a symmetrical pressing of the workpiece takes place.
  • in the plane B can be provided by a cylindrical compression of a tube through the second active contour optimal tightness and be provided by two hexagonal pressing both sides mechanical durability.
  • the tool for holding and cutting it is preferable if the tool is cut with the second effective contour and is held with the first and third jaws, so that the workpiece is fixed on both sides and deformations are avoided on both sides.
  • the invention is not limited to the use of two or three pairs of jaws. It is also conceivable to use four or even more pairs of jaws, wherein the active contours can occur in any combination. In any case, but two pair of jaws according to the teaching of the invention are available. In this sense, the information of the number of jaws can be understood as a minimum number. The tool must therefore have at least a second pair of jaws in order to carry out the teaching according to the invention. For the sake of better readability, however, is largely based on the use omitted from "at least" in connection with the number of jaws.
  • the configuration of the active contours is not limited to the design of the circulating shape of the active contours (for example, cylindrical or hexagonal shape during pressing), but the active contours can also have profilings along or transverse to the pivoting planes.
  • Fig. 1 shows a first upper jaw 2 and a first lower jaw 4 exhibiting first pair of jaws 2,4 with a formed between the front ends of the first jaw 2 first effective area 6, formed with a between the rear ends 8,10 of the first jaws 2,4 first inlet contour 12 and with the first jaws 2,4 independently movably receiving bracket 14, wherein the first jaws 2,4 are in an open position, but in a pivot plane A are pivotable.
  • the pivot plane A is in this case the plane of the Fig. 1 , Due to the three-dimensional extent of the jaws, the pivoting plane is understood to be a plane that runs through or adjoins the jaws.
  • the first active contour 16 has a hexagonal shape in this embodiment.
  • the holder 14 further has an upper axis 18 for the first upper jaw 2 and a lower axis 20 for the first lower jaw 4. Of course, it is also conceivable to use only one axis for both jaws 2, 4.
  • the holder 14 is preferably formed so that it the jaws 2,4 on both sides, ie also from the back (behind the image plane in Fig. 1 ) and the axles 18 and 20 are picked up a second time for better stability.
  • the holder 14 preferably also has a receptacle 21, for example in the form of a hole, in order to fix the tool during the insertion of the bolt between the inlet contours by means of the pressing machine.
  • Fig. 2 shows a second upper jaw 22 and second lower jaw 22 having a second pair of jaws 22,24, wherein between the front ends of the second jaws 22,24, a second active region 26 is formed, wherein between the rear ends 28, 30 of the second jaw 22nd , 24 a second inlet contour 32 is formed, wherein the holder 14, the second jaws 22,24 independently movably receives, wherein the second jaws 22,24 are in an open position and in the pivoting plane B (drawing plane) are pivotable.
  • the bracket 14 further includes an upper axis 18 for the second upper jaw 22 and a lower axis 20 for the second lower jaw 24.
  • the second inlet contour 32 is formed differently from the first inlet contour 12.
  • the second active contour 34 has a cylindrical shape.
  • the active contours 16,34 from the Fig. 1 and 2 in this case, they are suitable for pressing the workpiece (76).
  • Fig. 3 Now shows a side view of an embodiment of the invention, in which the first jaws 2,4 in front of the second jaws 22,24 together in a holder 14th are arranged. Both jaw pairs are open and have the active contours 16, 34 from the Fig. 1 and 2 on.
  • the second jaws 22, 24 can move independently of the first jaws 2, 4. Due to the different inlet contours 12, 32, when inserting a bolt of a pressing machine (not shown, in FIG Fig. 3 Coming from the left) in the present embodiment, first the first jaws 2,4 and then the second jaws 22,24 closed. This process is in the following 4 to 6 shown.
  • FIG. 4 This shows Fig. 4 the embodiment Fig. 3 in a perspective view.
  • the jaws 2,4,22,24 are open.
  • Fig. 5 now shows the closing of the tool at the time when the first pair of jaws 2,4 is already closed and the second pair of jaws 22,24 is still open.
  • Fig. 6 now shows the completed closing process of the tool. That is, both the first pair of jaws 2,4 and the second pair of jaws 22,24 are closed.
  • Fig. 7 shows that a third upper jaw 36 and a third lower jaw 38 exhibiting third pair of jaws36,38, wherein between the front ends of the third jaws 36,38 a third effective region 40 is formed, wherein between the rear ends 42,44 of the third jaw 36th , 38 a third inlet contour 46 is formed, wherein the holder 14, the third jaws 36,38 independently and in principle independently of the first jaws 2,4 and the second jaws 22,24 movably receives, all jaws are in an open , The third jaws 36,38 are in a through the third jaws (36,38) extending pivot plane C pivotally, wherein the third inlet contour 46 is formed differently from the second inlet contour 32, but is identical to the first inlet contour 12.
  • the second pair of jaws 22,24 is disposed between the first pair of jaws 2,4 and third pair of jaws 36,38.
  • the third active contour 48 of the third jaws 36, 38 is identical to the first active contour 16 here.
  • the first jaws 2,4 and third jaws 36,38 are rigidly connected to each other via connecting elements 50, such as screws or pins.
  • Fig. 8 shows the closing of the tool at the time when the first jaws 2,4 and third jaws 36,38 already closed, the second jaws 22,24 are still open. An inserted tool 76 would now be processed in the first effective range 6 in the plane A and in the third active region 40 in the plane C, in this case pressed.
  • Fig. 9 now shows the closing of the tool at the time when both the first jaws 2,4 and third jaws 36,38 and the second jaws 22,24 are already closed.
  • Fig. 10 1 shows an exemplary embodiment with a first pair of jaws 2,4, a second pair of jaws 22,24 and a third pair of jaws (not shown) and four tool elements 52,54,56,58 for pressing in the opened state, wherein only the second pair of jaws 22,24, the third pair of jaws 36,38 and the tool elements 52,54,56,58 are shown in a section of a side view.
  • the four tool elements 52,54,56,58 are characterized in that a respective front tool element 52 and a rear tool element 54 in contact with the second upper jaw 22 and a respective front tool element 56 and a rear tool element 58 are in contact with the second lower jaw 24 and that the tool elements 52,54,56,58 the movement of the second jaws 22,24 participate.
  • the second jaw pair 22,24 is not formed integrally with the active contour.
  • the second active region 26 and the second active contour 34 are defined by the tool elements.
  • the second jaws 22, 24 have a raised portion 60, 62, 64, 66 for each tool element 52, 54, 56, 58.
  • the protrusions allow the tool members 52,54,56,58 to apply force to the workpiece 76 substantially simultaneously and reduce or even prevent a typical shearing motion.
  • the second active contour 34 is in this case a cylindrical pressing contour.
  • Fig. 11 shows the embodiment Fig. 10 with open jaws 2,4,22,24,36,38 in a perspective view. Also shown are the receptacles 68,70,72,74 of the first jaws 2,4, in which the tool elements 52,54,56,58 partially engage. Preferably, recordings are also present in the third jaws 36,38.
  • the designed here as slots receptacles 68,70,72,74 serve as a guide rail for the tool elements 52,54,56,58.
  • Fig. 12 shows the embodiment Fig. 11 . You can see the closing of the tool at the time when the first jaws 2,4 and third jaws 36,38 are already closed, the second jaws 22,24 are still open. An inserted tool 76 would now be in worked first effective range 6 and in the third active region 40, in this case pressed hexagonal.
  • Fig. 13 now shows the closing of the tool at the time when both the first jaws 2,4 and third jaws 36,38 and the second jaws 22,24 are already closed.
  • the tool elements 52, 54, 56, 58 follow the movement of the second jaws along the receptacles 68, 70, 72, 74 and would compress an inserted tool 76 in the second active region 26 in a cylindrical manner.
  • Fig. 14 shows an embodiment similar to that of the Fig. 11 to 13 in the open state in the side view.
  • the tool elements 52,54,56,58 are in this case with a second active contour 34, which is formed in this embodiment, that it is suitable for cutting.
  • the tool elements 52, 54, 56, 58 have different active contours.
  • an inserted workpiece 76 is first held by means of the first jaws 2,4 and third jaws 36,38 and then cut with the aid of the second jaws 22,24 and the cutting tool elements 52,54,56,58.
  • Fig. 15 shows how due to the different inlet contours 12,32,46 of the jaws, first the first jaws 2,4 and third jaws 36,38 are closed. Since the first active contour 6 and the third active contour 48 essentially correspond to the circumferential contour of the workpiece 76, this is held in a form-fitting or frictionally engaged or even fixed.
  • FIG. 16 now shows the completed editing process from the FIGS. 14 and 15 , Also, the second jaws 22,24 are closed and the tool elements 52,54,56,58 were formed so far in the workpiece 76 that this was completely broken in this case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)
  • Turning (AREA)
  • Earth Drilling (AREA)
  • Scissors And Nippers (AREA)
EP11186855.0A 2010-11-05 2011-10-27 Werkzeug mit verschiedenen Wirkbereichen Active EP2450149B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010050320A DE102010050320B3 (de) 2010-11-05 2010-11-05 Werkzeug mit verschiedenen Wirkbereichen

Publications (3)

Publication Number Publication Date
EP2450149A2 EP2450149A2 (de) 2012-05-09
EP2450149A3 EP2450149A3 (de) 2014-04-23
EP2450149B1 true EP2450149B1 (de) 2016-02-10

Family

ID=44905577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11186855.0A Active EP2450149B1 (de) 2010-11-05 2011-10-27 Werkzeug mit verschiedenen Wirkbereichen

Country Status (5)

Country Link
US (1) US8578751B2 (es)
EP (1) EP2450149B1 (es)
DE (1) DE102010050320B3 (es)
DK (1) DK2450149T3 (es)
ES (1) ES2564324T3 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE536134C2 (sv) * 2011-05-13 2013-05-21 Pressmaster Ab Handdrivet krimpverktyg
DE102012105655A1 (de) 2012-06-28 2014-01-02 Viega Gmbh & Co. Kg Pressbacke und Verfahren zum Herstellen einer unlösbaren Rohrverbindung und System aus einer Pressbacke und einem Fitting
US9016102B2 (en) 2013-02-19 2015-04-28 Milwaukee Electric Tool Corporation Forming hand tool
US10967442B2 (en) 2016-06-08 2021-04-06 Milwaukee Electric Tool Corporation Tool head
US11394165B2 (en) * 2017-06-29 2022-07-19 Hubbell Incorporated Repositionable tool die
US10960473B2 (en) 2018-08-22 2021-03-30 Milwaukee Electric Tool Corporation Rebar cutting tool
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

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Publication number Priority date Publication date Assignee Title
US6101862A (en) * 1998-05-20 2000-08-15 Framatome Connectors Usa, Inc. Hydraulic compression tool
US7191525B2 (en) * 2003-10-08 2007-03-20 Brailovskiy Aleksandr M Two-stage attachment for cutting, crimping etc, and mechanical method thereof
US7665343B2 (en) * 2005-06-13 2010-02-23 Emerson Electric Co Identification attachments for compression tools
US7350393B2 (en) * 2006-06-13 2008-04-01 Yu Hsin Li Hand tool for wires
US7882722B2 (en) * 2007-08-03 2011-02-08 Hubbell Incorporated Jaw assembly
US7536896B1 (en) * 2008-02-21 2009-05-26 Cheng-Hao Hung Pliers
DE102008011220B3 (de) 2008-02-26 2009-04-23 Hannes Neubauer Vorrichtung zur Fixierung oder Manipulation von Objekten
TWM362080U (en) * 2009-03-11 2009-08-01 Hanlong Ind Co Ltd Labor-saving tool
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
DE202009006823U1 (de) * 2009-05-12 2009-10-08 Volodymyrskyi, Yevgen, Dipl.-Ing. Flachzange

Also Published As

Publication number Publication date
EP2450149A3 (de) 2014-04-23
EP2450149A2 (de) 2012-05-09
US20120279276A1 (en) 2012-11-08
ES2564324T3 (es) 2016-03-21
US8578751B2 (en) 2013-11-12
DE102010050320B3 (de) 2012-02-23
DK2450149T3 (en) 2016-03-07

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