EP4311627A2 - Mâchoires de pressage ainsi que pince de pressage avec deux mâchoires de serrage - Google Patents

Mâchoires de pressage ainsi que pince de pressage avec deux mâchoires de serrage Download PDF

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Publication number
EP4311627A2
EP4311627A2 EP23215834.5A EP23215834A EP4311627A2 EP 4311627 A2 EP4311627 A2 EP 4311627A2 EP 23215834 A EP23215834 A EP 23215834A EP 4311627 A2 EP4311627 A2 EP 4311627A2
Authority
EP
European Patent Office
Prior art keywords
pressing
jaw
jaws
pliers
pivot pin
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.)
Pending
Application number
EP23215834.5A
Other languages
German (de)
English (en)
Other versions
EP4311627A3 (fr
Inventor
Benjamin WEISHEIT
Georg Holland-Moritz
Gerhard König
Marko ENDTER
Ralf Legler
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.)
Rennsteig Werkzeuge GmbH
Original Assignee
Rennsteig Werkzeuge GmbH
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 Rennsteig Werkzeuge GmbH filed Critical Rennsteig Werkzeuge GmbH
Publication of EP4311627A2 publication Critical patent/EP4311627A2/fr
Publication of EP4311627A3 publication Critical patent/EP4311627A3/fr
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/0424—Hand tools for crimping with more than two radially actuated mandrels
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • 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
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments
    • 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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/058—Crimping mandrels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/058—Crimping mandrels
    • H01R43/0585—Crimping mandrels for crimping apparatus with more than two radially actuated mandrels

Definitions

  • the invention relates to pressing pliers with two pliers jaws, which are provided with oppositely arranged pressing jaws, the pressing jaws being rotatable together about an axis of rotation directed in the direction of retraction of the pressing jaws, and furthermore the pressing jaws around the axis of rotation even in the collapsed state without hindrance by a pliers jaw are rotatable and a pressing jaw has a pivot.
  • Pressing tongs of the type in question are known. They are used, for example, to crimp conductor ends, for example using a wire end sleeve.
  • the pressing jaws used for this are molded parts designed to move into one another, possibly having ribs.
  • Known pressing pliers have jaws to which pressing jaws are attached. The pliers jaws can be opened or closed like pliers or scissors.
  • the pressing jaws are rotatable relative to the pliers jaws.
  • the pressing jaws have a pivot which is accommodated in a plastic insert, which is held relative to the pliers jaws by means of axle stubs accommodated in the pliers jaws are pivotable.
  • the pivot pins are connected to the pressing jaws in a rotationally fixed manner.
  • the invention is concerned with the task of specifying a pressing tongs of the type mentioned, in which the pressing jaws are advantageously designed to be movable.
  • the proposed rotation around the axis of rotation can be infinitely variable, but alternatively also in steps, for example viewed in the circumferential direction in 15°, 30° or 45° steps.
  • the pivot pin can be held in the press jaw so that it can be removed.
  • the pressing jaw can be rotatable about a geometric axis of rotation passing through the pivot. Accordingly, the pivot can offer the geometric axis of rotation.
  • the pivot pin can be accommodated in the associated pliers jaw in a pivot joint for pivoting about a pivot axis running transversely to the axis of rotation, with the pressing jaws being detached from the opposite pliers jaw, the pressing jaws being able to be rotated individually or together to be pulled out of the pliers mouth in the direction of the axis of rotation.
  • the pressing jaws do not have any protrusion that would collide with the upper and/or lower jaw during rotation.
  • this is also achieved in that the leadership tasks that are to be performed by the guide projections are distributed on the assigned guide surfaces of the opposite press jaw, i.e. on both press jaws.
  • the guide projections are also designed in such a way that they only move into one another to such an extent that there is no collision with the pliers jaws when the pressing jaw rotates about the axis of rotation mentioned.
  • the pressing jaw can be dismantled from the pivot. This can be done without tools, moreover but if necessary also using a common tool, such as pliers or a screwdriver.
  • the holder of the pivot pin can be formed by a plug-in part which is received in a form-fitting manner both on the pivot pin and on the pressing jaw. To dismantle the pressing jaw from the pivot pin, the plug-in part must be removed, after which the positive connection is removed.
  • the plug-in part can be approximately U-shaped overall, correspondingly having two, preferably substantially parallel, mutually extending U-legs which are connected to one another via a U-web.
  • the positive connection can be achieved in the area of the U-legs and/or the U-web.
  • the plug-in part can also be designed to be resilient, for example by designing the plug-in part as a wire-form spring, in particular a U-shaped wire-form spring.
  • the pressing jaws can have ribs running in a longitudinal direction of the ribs, which move into one another during pressing.
  • a guide surface running transversely to the longitudinal direction of the ribs can be formed, which interacts with a guide projection extending from the opposite pressing jaw.
  • the press jaws are guided particularly in the course of a pressing process and the associated movement of the pressing jaws into one another. Any forces acting in the longitudinal direction of the rib on one and/or the other press jaw during the course of a compression, which could cause a displacement of one press jaw relative to the other press jaw in the longitudinal direction of the rib, are due to the interaction of the guide surface of one press jaw and the guide projection of the other press jaw recorded. This leads to proper pressing or crimping.
  • the guide surface can be provided on a guide projection of the other pressing jaw. But it can also be given in a different form of the others. For example, the guide surface can also be provided on an assigned (end) region of one or more ribs of the other pressing jaw.
  • the guide projection of one press jaw projects beyond a parting plane of the press jaws that is directed transversely to the direction of travel of the press jaws, for preferred contact with the guide surface of the other press jaw.
  • the guide surface can, as basically mentioned, be formed, for example, by a rib end face that limits the longitudinal extent of the ribs (of the other pressing jaw).
  • the ribs have a longitudinal rib direction, with the ribs each having a free end face assigned to the other pressing jaw.
  • the end face can have a rounded contour line that protrudes furthest in the middle.
  • each rib in the front area there is improved pressing or crimping, for example of wire end sleeves.
  • All ribs of one or both press jaws can have the rounded contour line.
  • the most protruding region of the end face pointing in the direction of the opposite pressing jaw or its groove base between two ribs leaving a groove between them is preferably essentially rounded, possibly having a constant radius over the length of the rounded contour line, and beyond this if necessary .but also having different radii with regard to the rounded contour line.
  • part of the end face contour is preferably provided with a radius that is smaller than the dimension of a rib thickness transverse to the longitudinal extent of the rib, for example corresponding to 0.5 to 0.3 times the thickness.
  • the pair of pressing jaws can be rotated around the axis of rotation into a position that is favorable for pressing or crimping to be carried out.
  • the pressing jaws are designed in such a way that such a rotation of the pair of pressing jaws is preferably possible in any collapsed position, correspondingly also in the fully collapsed position.
  • At least one pressing jaw can have a rib-side end face, whereby, seen in a cross section transverse to the longitudinal direction of the rib, there is a rounded contour line that is most protruding in the middle.
  • the ridge lines of at least one set of ribs in the view mentioned have a bulge which protrudes into the press jaw opening.
  • This protrusion can, as is also preferred, be provided partially with respect to the longitudinal extent of the ridge line, correspondingly only over a partial area.
  • the pressing jaws can first be brought into contact with the outer wall surface of the ferrule with the protrusions formed on the ribs and with the help of the protrusions, during further pressing, concave wall sections in the essentially rectangular wall of the deformed ferrule are formed.
  • the protrusions first reach the outer wall surface of the wire end sleeve, initially acting on it.
  • concave wall sections of the wall of the wire end sleeve result from the protrusions in the area of this loading.
  • the most centrally rounded contour line of the rib end face can be continuously curved, possibly with the exception of a flattening that also forms the most protruding area.
  • the flattening preferably appears as a straight line that merges into the continuously curved contour line.
  • the straight line preferably merges into a continuously curved course on both sides.
  • the curvature can also extend until it enters a flank contour of the rib that extends in a straight line in the direction of convergence.
  • the rib can have two possible, and also preferred, configurations. have parallel contour lines and the above-described curvature on the end face, and possibly a flattening that also forms the furthest protruding area.
  • the curved (partial) contour line preferably merges into the surface contour.
  • the pressing jaws described here preferably consist of a metallic material, for example a steel material. They can be designed in several parts or in one piece. They can be formed, for example by hot forming, but also by primary molding, for example as a casting, in particular using the investment casting process. A sintering process can also be used.
  • a pliers jaw can also have an upper side facing the associated pressing jaw, with a guide projection in the retracted state of the pressing jaws with its surface in the retraction direction leaving a distance from the facing surface of the pliers jaw, this preferably also in the fully collapsed state of the pressing jaws.
  • a collision-free displacement of a guide projection in the direction of the facing top of the jaw is possible.
  • a guide projection does not extend beyond the opposite pressing jaw.
  • the ribs of which have protrusions that project beyond the ridge line in the direction of the press jaw opening these protrusions can lie in overlap with one another when viewed on a broad side of the ribs with respect to a group of ribs.
  • only individual rib shares can have such protrusions, for example both rib shares of a press jaw, while the rib shares of the other press jaw have no such protrusions.
  • a set of ribs on each press jaw can also be provided with such a bulge.
  • all rib shares, corresponding to all ribs of both press jaws, are provided with such bulges.
  • the ridge lines can be continuous, i.e. H. extend straight from one end of the ridge line to the other end of the ridge line in the longitudinal direction.
  • Such a ridge line can also have at least one straight area, which is followed by, for example, a bulge.
  • straight areas of the ridge line can also be provided on both sides of the bulge, based on the longitudinal direction of the ridge line, with different or even the same lengths.
  • These straight-running areas which may be provided on both sides of the bulge, can merge into one another in a linear extension, so that these straight-running areas run in a possible, even preferred, configuration along a geometric base line stretched between the two end points of the ridge line.
  • a largest extent of the protrusion beyond such an imaginary baseline in the direction of the press jaw opening can correspond to a fiftieth to a tenth of the largest extent of the baseline that occurs when the press jaw opening is initially closed.
  • the initially closed press jaw opening is reached in the press jaw displacement position, in which the interlocking ribs of the press jaws moving towards one another with their ridge lines completely surround the press jaw opening in its largest cross-sectional configuration.
  • the bulges of the ribs act in every press jaw opening position, and accordingly act preferably when pressing a wide variety of ferrule cross sections.
  • the length of the protrusion measured in the direction of extension of the base line can also correspond to a third to a tenth of the largest extension of the base line that occurs when the press jaw opening is initially closed.
  • the ridge line can be formed in the area of the bulge in the shape of a circular section with a constant radius, possibly with a radius that changes in the direction of extension.
  • there is also a highest point of the bulge which highest point of the bulge is offset from a longitudinal center of the rib in relation to the greatest initial extension of the imaginary base line that occurs when the press jaw opening is initially closed.
  • This offset can extend to a complete off-center arrangement of the entire protrusion, for example when pressing ferrules with a relatively large cross section, for example 16 mm 2 .
  • pressing ferrules with a smaller cross-section for example 6 mm 2 or 2.5 mm 2 , this can be referred to at the moment of pressing the then effective ridge line results in an arrangement of the bulge interspersed with the longitudinal center.
  • the offset is preferably in the direction of the base line of the next rib of the same press jaw arranged next to one another, which adjoins the base line essentially at right angles to the base line.
  • the longitudinal center here refers to a center when the press jaw opening is initially closed between the points delimiting the end of the ridge line, corresponding to the imaginary base line.
  • the concave wall sections of the pressed ferrule result accordingly, particularly in the case of larger diameter cross sections, such as 16 mm 2 or 8 mm 2 , with respect to a wall leg of the otherwise essentially rectangular wall, viewed in cross section, tend to be assigned to the corner area, while assigned to the opposite one Corner area of the relevant wall section preferably runs in a straight line.
  • a wall leg can even be created with a concave wall section that is flanked on both sides by straight wall sections of at least approximately the same length.
  • the ranges or value ranges or multiple ranges specified above and below also include all intermediate values, in particular in one-tenth increments of the respective dimension, possibly also dimensionless.
  • the statement one-fiftieth to one-twentieth also includes the disclosure of ten five-hundredths to nine two-hundredths, eleven five-hundredths to ten two-hundredths, eleven five-hundredths to nine two-hundredths, etc.
  • this disclosure can be used to limit a specified area limit from below and / or above, alternatively or serve in addition to reveal one or more singular values from a specified area.
  • the ribs of which have protrusions that project beyond the ridge line in the direction of the press jaw opening these protrusions can lie in overlap with one another when viewed on a broad side of the ribs with respect to a group of ribs.
  • only individual rib shares can have such protrusions, for example both rib shares of a press jaw, while the rib shares of the other press jaw have no such protrusions.
  • a set of ribs on each press jaw can also be provided with such a bulge.
  • all rib shares, corresponding to all ribs of both press jaws, are provided with such bulges.
  • the ridge lines can run continuously, ie from one end of the ridge line to the other end of the straight line in the longitudinal direction.
  • Such a ridge line can also have at least one straight area, which is followed by, for example, a bulge.
  • straight areas of the ridge line can also be provided on both sides of the bulge, based on the longitudinal direction of the ridge line, with different or even the same lengths.
  • These straight-running areas which may be provided on both sides of the bulge, can merge into one another in a linear extension, so that these straight-running areas run in a possible, even preferred, configuration along a geometric base line stretched between the two end points of the ridge line.
  • a largest extent of the protrusion beyond such an imaginary baseline in the direction of the press jaw opening can correspond to a fiftieth to a tenth of the largest extent of the baseline that occurs when the press jaw opening is initially closed.
  • the initially closed press jaw opening is reached in the press jaw displacement position, in which the interlocking ribs of the press jaws moving towards one another with their ridge lines completely enclose the circumference of the press jaw opening in their largest cross-sectional design.
  • the bulges of the ribs act in every press jaw opening position, and accordingly act preferably when pressing a wide variety of ferrule cross sections.
  • the length of the protrusion measured in the direction of extension of the base line can also correspond to a third to a tenth of the largest extension of the base line that occurs when the press jaw opening is initially closed.
  • the ridge line can be formed in the area of the bulge in the shape of a circular section with a constant radius, possibly with a radius that changes in the direction of extension.
  • there is also a highest point of the protrusion which highest point of the protrusion is offset from a longitudinal center of the rib in relation to the largest extension of the imaginary base line that occurs when the press jaw opening is initially closed.
  • This offset can extend to a complete off-center arrangement of the entire protrusion, for example when pressing ferrules with a relatively large cross section, for example 16 mm 2 .
  • pressing ferrules with a smaller cross section for example 6 mm 2 or 2.5 mm 2
  • an arrangement of the bulge penetrated by the longitudinal center can result in relation to the then effective ridge line.
  • the offset is preferably in the direction of the base line of the next rib of the same press jaw arranged next to one another, which adjoins the base line essentially at right angles to the base line.
  • the longitudinal center here refers to a center when the press jaw opening is initially closed between the points delimiting the end of the ridge line, corresponding to the imaginary base line.
  • a pressing pliers 1 which essentially has two pliers jaws 2, 3, two handle parts 4, 5, as well as a first pressing jaw 6 and a second pressing jaw 7, which are arranged opposite one another as a pair of pressing jaws.
  • the Figures 1 to 28 show a pressing tongs 1 with pressing jaws 6 and 7 in a first embodiment.
  • a second embodiment of the pressing jaws 6 and 7 is in the Figures 29 to 35 shown.
  • the pliers jaw 2 and the associated handle part 4 are further referred to below as fixed, while the pliers jaw 3 and the handle part 5 associated with it are further referred to as movable.
  • the first pressing jaw 6 is assigned to the fixed jaw 2, while the movable jaw 3 carries the second pressing jaw 7.
  • the fixed pliers jaw 2 is essentially composed of two jaw parts 8 of essentially the same design, spaced apart from one another transversely to the longitudinal extent of the pliers jaw 2, the ends of which, in the areas facing away from the pressing jaws 6 and 7, merge into the rigid with the so Designed pliers jaw 2 connected handle part 4.
  • the latter like the movable handle part 5, can be enclosed by a handle cover 9 or 10.
  • the movable pliers jaw 3 is rotatably mounted on the fixed pliers jaw 2 about a geometric rotation axis on a pin 12 extending between the jaw parts 8 of the fixed pliers jaw 2 in the direction of extension of the axis of rotation x.
  • the axis of rotation x runs essentially transversely to the longitudinal extension direction, in particular of the fixed pliers jaw 2 and the grip part 4 adjoining it.
  • the movable pliers jaw 3 is spring-loaded in the direction of its stop-limited rotary open position.
  • a spring 13 is provided, preferably as shown in the form of a cylindrical tension spring, which engages a lever end of the movable pliers jaw 3 facing away from the assigned second pressing jaw 7.
  • the end of the spring 13 facing away from the pliers jaw 3 is connected to another pin 14 of the fixed pliers jaw 2.
  • the movable pliers jaw 3 in the illustrated embodiment is preferably formed by a plate-like lever part 15 of uniform material throughout.
  • the movable handle part 5 is articulated essentially at the end of the lever section 17 acted upon by the spring 13.
  • the relevant geometric axis of rotation y extends in parallel alignment to the geometric axis of rotation x of the movable pliers jaw 3.
  • the ratchet arm 18 is articulated at one end to the fixed jaw 2 and at the other end to the movable handle part 5.
  • the relevant geometric axes of rotation also run parallel to the geometric axis of rotation x, as well as to the geometric axis of rotation y.
  • a toothed ratchet section 19 is formed on the ratchet arm 18, for interaction when the pressing tongs 1 are actuated with a pawl 20 which is pivotally articulated on the movable handle part 5.
  • the latter is spring-loaded into a basic position due to the arrangement of a tension spring 21 in the movable handle part 5.
  • an adjustment of the knee joint arrangement K is made possible by an adjusting part 22 which is accessible from the outside on the fixed pliers jaw 2 and is rotatable about the geometric axis of rotation, about which the ratchet arm 18 can also be moved in the area of the fixed pliers jaw 2, which is provided in several Rotary positions can be locked.
  • the actuating part 22 acts on the axis of rotation of the fixed jaw via an eccentric, not shown Ratchet arm 18, so that a corresponding linear displacement of the relevant geometric axis of rotation can be achieved.
  • the first pressing jaw 6 is attached to the end of a resilient holding part 23.
  • a center line a of the holding part 23 which runs essentially in the longitudinal extent of the fixed pliers jaw 2 and its extension into the fixed handle part 4, there is a substantially concave course when viewed from the movable pliers jaw 3 or the movable handle part 5, in particular in the area of a holding part -Section 24 between the free end holding the first pressing jaw 6 and a stop connection 25, described in more detail below.
  • the holding part 23 is preferably flanked on both sides by the jaw parts 8 of the fixed pliers jaw 2, the holding part section 26 facing away from the end carrying the first pressing jaw 6 being connected at the end to the fixed pliers jaw 2, correspondingly with the jaw parts 8, and/or the fixed handle part 4 connected is.
  • a fixed connection 27 is provided in this regard by two pin connections spaced apart from one another in the direction of extension of the center line a.
  • the pressing jaws 6, 7 are designed to be arranged opposite one another in the pressing tongs 1.
  • One or both pressing jaws 6, 7 have ribs 29.
  • the ribs 29, 31 have a rib longitudinal direction R corresponding to a course of their free ends, projected onto a base surface, cf., for example. Fig. 11 .
  • the ribs 29, 31 can, as a rule, extend over part of their height H, cf. also Fig. 11 , run into each other. This will also be the case Figures 6, 7 referred.
  • the area of the ribs 29, 31, which usually comes into engagement with a compact during compression, is referred to as the working area.
  • the ribs point outside the working area of the ribs 29, 31 29, 31 has a guide surface F, which interacts with a guide projection 38 extending from the pressing jaw 6, 7. This results in an interaction and thus also an prevention or limitation of displacement in the longitudinal direction of the rib.
  • the guide surface can also be provided in the transverse direction. In the exemplary embodiment shown, this is given by a corresponding end face S pointing in this direction, possibly opposite on both sides, of a guide projection 38, cf Fig. 5 .
  • the guide surface that may be provided in the transverse direction serves less to limit displacement and more, if necessary, to provide additional guidance in the sense of linear guidance of the pressing jaws relative to one another.
  • a displacement limitation in this regard is preferably already achieved by the interlocking ribs.
  • the pressing jaws 6 and 7 are preferably designed in the same way, more preferably initially having a base body 28 on which the ribs 29 are arranged, initially with reference to the pressing jaw 6.
  • the ribs 29 and the base body 28 are, as preferred, formed in one piece using the same material.
  • the ribs 29 of the pressing jaw 6 have the longitudinal direction R of the ribs.
  • the floor plan results in essentially triangular ribs 29, with an outer rib end face 30 running essentially perpendicular to the base body 28 or perpendicular to the rib longitudinal direction R.
  • the rib end face falls in the rib longitudinal direction R extending end face facing the opposite pressing jaw in the direction of the base body 28.
  • Rectified ribs of a pressing jaw 6 or 7 are arranged at a distance from one another transversely to the longitudinal direction R of the ribs, in particular at a distance which essentially corresponds to the rib thickness viewed in the distance direction.
  • Additional ribs of the same press jaw 6 and 7 partially dip into these distance areas of a press jaw 6 and 7, respectively.
  • the further ribs 29 which engage in the spaces between the above-described ribs 29 are arranged essentially in mirror image, but preferably offset by one rib width, accordingly also having an outer rib end face 30 which runs essentially vertically to the base body 28 and which lies opposite the rib end faces 30 of the ribs 29 described above.
  • These further ribs 29 also fall in the longitudinal direction of the ribs towards the base body 28.
  • Rectified ribs 29 of the pressing jaw 6 form a group of ribs 54 or 55 (cf. Fig. 8 ).
  • the opposite pressing jaw 7 has the same design and arrangement of the ribs, correspondingly having triangular ribs 31 with outer rib end faces 32 with respect to a floor plan viewed from the end face.
  • press jaw opening 33 with a preferably square, more preferably square floor plan sets.
  • the edge length of the press jaw opening 33 can be changed evenly in the course of a changing linear spacing of the press jaws 6 and 7 from one another.
  • each rib 29, 31 has a free end face 34, with a cross-section as shown in Fig. 7
  • This rounded or curved contour line 35 extends between the flank contour 36 of the rib 29, 31, which preferably extends in a straight line with respect to a retraction direction r of the pressing jaws 6 and 7, where further with regard to a rib 29, 31, a parallel flank contour 36 is preferably provided on both sides. Viewed in the direction of the opposite pressing jaw, this preferably results in an overall concavely curved contour line 35.
  • the curved contour line 35 can extend continuously over the entire rib thickness viewed transversely to the longitudinal direction of the rib, for example having a (constant) radius of curvature that can correspond to half the rib thickness dimension.
  • the constant curvature of the contour line 35 can, if necessary, be interrupted by a flattening 37 which forms the most protruding region of the rib 29, 31 and is approximately central with respect to the cross section. This can be transversely oriented and possibly rectilinear with respect to the cross section run to the flank contour 36.
  • the ribs 29 and 31 can be supported and thus the pressing jaws 6 and 7 can be guided accordingly.
  • each pressing jaw 6, 7, connected to the respective base body has at least one guide projection 38, with a length viewed in the retraction direction r, which can essentially correspond to the length viewed in the same direction on the same base body 28.
  • Ribs 29 and 31 can correspond.
  • the guide projection 38 extends transversely to the longitudinal direction of the ribs over a distance which, in the exemplary embodiment shown, covers the arrangement of two or three ribs 29, 31.
  • the guide projection 38 further extends along the associated rib end face 30 or 32.
  • the guide projection 38 interacts with the rib end faces 30 and 32, respectively, which form a guide surface.
  • Such support via a guide projection 38 is provided oppositely when viewed in the longitudinal direction of the rib, with the opposite guide projections 38 being double on one side, exposing a central retraction opening 39 remaining between them and on the opposite side is preferably only simple, for insertion into the central entry opening of the other pressing jaw 6, 7.
  • the pressing jaws 6 and 7 can be rotated together in the use position between the fixed tong jaw 2 and the movable tong jaw 3 about an axis of rotation z, which is in the retraction direction r and transversely to the geometric axes of rotation x and y the movable pliers jaw 3 or the movable handle part 5 is directed.
  • This possible rotation is independent of the collapsing position of the pressing jaws 6 and 7, ie both in the basic position of the pressing jaws, for example as shown in Fig. 2 , as well as in a pressing tongs end position, for example as shown in Fig. 28 , as well as in every intermediate position between the basic position and the final position.
  • a pivot pin 43 is initially assigned to each pressing jaw 6 or 7. This sits, passing through the lower surface 41, in a shape-adapted recess 44 of the base body 28 of the pressing jaw 6, 7.
  • the pressing jaw 6, 7 is rotatable relative to the pivot 43 about the axis of rotation z, while the pivot pin 43 is preferably not displaceable with respect to the axis of rotation z in the respectively assigned end of the jaw 2, 3 or the lever part 15 or holding part 23 is received.
  • the pressing jaw 6 or 7 can be mounted on the respective pivot pin 43 so that it can be removed.
  • a U-shaped plug-in part 45 is provided, which can optionally be inserted or removed from the end face which also forms the press jaw opening 33 transversely to the axis of rotation z.
  • two channels 46 are provided in the base body 28 of the pressing jaw 6, 7, running parallel and transverse to the axis of rotation z, through which the U-legs of the plug-in part 45, which preferably run parallel to one another in the unloaded state, can be inserted.
  • the channels 46 cross the recess 44 which essentially accommodates the pivot 43 (cf. Fig.11 ).
  • the pivot pin 43 can be provided with a polygonal cross-section at least in the section that interacts with the plug-in part 45, in the illustrated embodiment in the form of an octagon.
  • the U-legs of the plug-in part 45 lie on two flat sides of the polygonal pivot pin 43, which are opposite with respect to the axis of rotation z at.
  • the pressing jaw 6, 7 By pulling out the plug-in part 45, which in a further embodiment is preferably designed to be resilient, the pressing jaw 6, 7 can be released from the pivot 43 in order to remove the pressing jaw 6, 7.
  • Each pivot pin 43 can also be attached to the associated pliers jaw 2, 3 or to the associated lever part 15 or holder part 23 via a pivot joint 47.
  • the geometric pivot axis u is directed transversely to the axis of rotation z, possibly, as is also preferred, aligned parallel to the geometric axes of rotation x and y of the movable jaw 3 and / or the movable handle part 5.
  • a pivot pin 48 is formed on the pivot pin 43 in an extension of the section accommodated in the base body 28 of the pressing jaw 6, 7, which can be covered on both ends by guide jaws 49 which are enlarged compared to the pin diameter.
  • the respective pivot pin 48 is accommodated in a shape-adapted cavity 50 of the associated pliers jaw 2, 3 or the associated lever part 15 or holder part 23, which cavity 50 is preferably in cross section as shown in Fig. 15 over half the circumferential extent of the pivot pin 48 extends to provide a captive holder for the pivot pin 43.
  • the press jaws 6, 7 can be easily removed and equipped with them.
  • the plug-in part 45 of the first pressing jaw 6 assigned to the fixed pliers jaw 2 can first be removed, after which the first pressing jaw 6 can be displaced in the direction of the retraction direction r with the meshing interaction of the ribs 29 and 31 onto the opposite second pressing jaw 7 .
  • the pivot pin 43 leaves the recess 44, after which the pair of pressing jaws can be pivoted forward about the pivot axis u of the second pressing jaw 7 assigned to the movable jaw 3, for example by a pivot angle of approximately 15° to 30°.
  • the further plug-in part 45 of the second pressing jaw 7 can then be removed, after which the pair of pressing jaws as a whole can be removed from the pivot 43 of the second pressing jaw 7.
  • a pair of press jaws is assembled in the reverse order.
  • the second pressing jaw 7 can also first be released from the associated pivot pin 43 and then moved in the direction of the first pressing jaw 6, after which the pair of pressing jaws is pivoted forward about the pivot axis u of the first pressing jaw 6, the first pressing jaw 7 from the pivot pin 43 loosened and finally the pair of press jaws released in this way is removed.
  • the holding part 23 is basically resilient in the sense that it can deflect resiliently against the pressing direction. In the connection area of the fixed connection, there is no or at least practically no relative movement between the holding part 23 and the fixed jaw 2 when pressing with the pressing tongs.
  • the holding part 23 can also move relative to the fixed jaw 2 during compression.
  • the movement results at least essentially through an elastic deformation with regard to the forces acting on the pressing jaw 6 during compression, which are absorbed by the holding part 23.
  • this mobility is limited due to a stop which is formed on the holding part 23 and/or the fixed pliers jaw 2 and, with appropriate force or deformation of the holding part 23, leads to a stop connection between the holding part 23 and the fixed pliers jaw 2.
  • this stop connection is reached, there is, as it were, a shortening of the resilient area of the holding part 23.
  • the holding part 23 no longer deflects elastically by a corresponding amount by which it previously deflected with a corresponding amount of force. Nevertheless, there is still further flexibility.
  • the stop connection 25 provided in the area of the holding part 23 assigned to the fixed pliers jaw 2 is provided by a stop, which is specifically and preferably formed by a stop section 51.
  • the stop can rest against an edge of the holding part 23 come.
  • the holding part 23 has an elongated hole 53 in which the stop, here preferably in the form of the pin 52, is received. In the given case, if this is provided, the elongated hole 53 extends with its central axis directed in the longitudinal direction essentially approximately perpendicular to the above-described center line a of the holding part 23.
  • the elongated hole 53 has a width adapted to the diameter of the pin 52, while the length viewed perpendicular thereto can correspond to approximately 1.5 to approximately 2 times the pin diameter.
  • the holding part 23 is suitable for bending deformation in the course of applying compression force, in particular for bending deformation essentially counter to the retraction direction r and transverse to the center line a.
  • this bending deformation which initially and essentially results from the clamping in the area of the fixed connection 27 to the fixed pliers jaw 2, the elongated hole 53 in the holding part 23 can come into contact with the stop section 51 or the pin 52.
  • the holding part 23 only receives support in this contact position in the area of the stop connection 25, which, in the course of a further introduction of pressing force, for example when pressing larger-diameter workpieces W, causes a predominant bending stress on the holding part 23, possibly only in the holding part section 24 .
  • the workpiece W to be pressed can, as is also preferred and shown, be a wire end sleeve 57 which includes conductor ends 58 of a cable.
  • the compression results in a pull-tight connection between the wire end sleeve 57 and the conductor ends 58 due to the deformation of the wall 59 of the wire end sleeve 57.
  • the holding part 23 is preferably designed as a flat part, with a smaller thickness d compared to its length l.
  • the length l corresponds to approximately 15 to 30 times, and further approximately 20 times the thickness d.
  • the holding part also preferably rests practically directly on a corresponding flat side of the fixed pliers jaw 2.
  • the holding part section 24 and the holding part section 26 there is a smallest cross section b, b ', viewed transversely to the center line a.
  • the smallest cross section (dimension b') between the fixed connection 27 and the stop connection 25 is preferably larger than the smallest cross section (dimension b) between the stop connection 25 and the holding area for the first pressing jaw 6.
  • the dimension of the smallest cross section 6 between the Stop connection 25 and press jaw holder can correspond to 0.3 to 0.8 times the dimension of the smallest cross section b 'between the stop connection 25 and the fixed connection 27.
  • a smaller cross-sectional dimension b is given throughout over half to 2/3 of the relevant length of the holding part section 24 in comparison to the cross-sectional dimension b 'over the entire length of the holding part section 26 extending between the stop connection 25 and the fixed connection 27. Accordingly, there can be an area of the largest in the holding part section 24 between the stop connection 25 and the holding area for the first pressing jaw 6 deformation result.
  • the respective lever path, in particular of the handle part 5, is the same regardless of the workpiece diameter up to a position in which the pawl 20 leaves the ratchet section 19.
  • the movable handle part 5 that is then released can be swiveled back, opening or distancing the pressing jaws 6 and 7 from one another.
  • the force-path compensation is supported due to a possible bending deformation in the area of the lever part 15 assigned to the movable jaw 3 or directly forming this jaw 3, in particular in the area between the axis of rotation x and the pivot joint 47 of the assigned second pressing jaw 7 resulting lever section 16, which, viewed transversely to its essential longitudinal extent, has a smaller minimum cross-sectional dimension than the lever section 17 between the axis of rotation x and the pivot connection of the movable handle part 5.
  • the Figures 29 to 34 show a pair of press jaws with press jaws 6 and 7 in a second embodiment.
  • the ribs 29 and 31 of both pressing jaws 6 and 7 are provided with a bulge 60 with respect to the respective ridge line 56.
  • the protrusion 60 can be of a convex shape, with reference to a floor plan as shown in Figure 31 circular line segment shaped.
  • the protrusions 60 of a set of ribs 54 and 55 lie in overlap with one another with respect to a view against the pressing jaw 6 and 7 on the rib end face 30, 32.
  • the length g of the protuberance 60 viewed in the direction of extension of the base line 62 can correspond to approximately one seventh to a quarter, further approximately one fifth of the above-described extension length f of the base line 62.
  • the protrusion 60 is arranged off-center with respect to the associated base line 62 of the ridge line 56, at least when the press jaw opening 33 is initially closed, with respect to a center line M running perpendicular to the base line 62.
  • the protrusion 60 can thus be arranged completely off-center, correspondingly over its entire length g.
  • the eccentric displacement of the protrusion 60 with respect to the central axis M in the direction of the crossing base line 62 of the immediately adjacent rib 29 or 31 of the same press jaw 6 or 7, which runs at right angles to the base line 62 having the protrusion 60 can be given.
  • the protrusion 60 is correspondingly offset eccentrically with respect to the central axis M in the direction of the gusset formed by the ribs of the same press jaw.
  • a first straight region 61 of the ridge line 56 extends out of this gusset, with a length k which can correspond to approximately 0.3 to 0.8 times the length g of the bulge 60, preferably approximately 0.5 subjects.
  • the other rectilinear region 61 of the ridge line 56 adjoining the protrusion 60 is chosen to be significantly larger in terms of its length h than the above-described rectilinear region, and thus has a length h that is approximately 1.5 to 2.5 times. can further correspond to approximately 2 times the length of the protrusion 60.
  • the Figures 32 to 34 show successive intermediate positions in the course of a pressing process using pressing jaws of the second embodiment.
  • a workpiece W in the form of a wire end sleeve 57 with conductor ends 58 summarized therein is placed in the press jaw opening 33.
  • the wall 59 of the wire end sleeve 57 initially has a circular cross section in the compression area, ie in the non-formed state, as shown in Figure 32 on.
  • the conductor ends 58 are held loosely in the wire end sleeve 57 in this position, ie not pulled off.
  • the protrusions 60 first come into contact with the outer wall surface of the wire end sleeve 57 in the area of the rib-side ridge lines 56.
  • concave wall sections 64 are formed into the wall 59 of the wire end sleeve 57 as the pressing jaws 6 and 7 move further into one another.
  • the wall material is preferably diverted into the gussets between the mutually facing ribs 29 and 31 of the pressing jaws 6 and 7, which result transversely to the retraction direction r, by forming and thereby along the straight-line areas 61 of the ridge lines 56, which may be longer in this pressing jaw position
  • Corresponding wall sections with a straight cross-section are formed. Two immediately successive such straight wall sections of the wire end sleeve 57 form an angle of approximately 90 degrees to one another.
  • the wall 59 of the wire end sleeve 57 is preferably also pushed into the gussets between the ribs of a pressing jaw 6 and 7 pointing in the retraction direction r, correspondingly adapted to the shorter, straight-line regions 61 of the ridge line 56 adjoining the protrusion 60.
  • the pressing jaws 6 and 7 move further together.
  • the pressing takes place with a smaller cross-sectional press jaw opening 33.
  • the entire wall leg can also have a substantially concave curvature, especially with the smallest cross sections, possibly merging directly into the corner areas.
  • the width m of a concave wall section 64 viewed in the workpiece longitudinal direction WL is dependent on the rib thickness or thickness of the end face viewed perpendicular to the longitudinal rib direction R, which at the same time preferably also specifies the relevant thickness of the protrusion 60.
  • the offset of the upper concave wall sections 64 to the lower concave wall sections 64 corresponds to the offset of the interlocking ribs of a press jaw 6 or 7, whereby a distance n is established which approximately corresponds to the width dimension m.
  • a distance p between two concave wall sections 64 arranged next to one another in the longitudinal direction WL of the workpiece, which distance p depends on the distance between two rectified ribs of a set of ribs 54 or 55 of a press jaw 6 or 7 to one another.
  • the distance p can correspond to approximately 2 times the width m of a wall section 64.
  • the proposed method using pressing jaws with protrusions 60 can result in a "homogeneous" ferrule 57 completely filled with conductor ends 58, which leaves empty areas in the cross section that could lead to the gripped conductor ends 58 becoming loose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Surgical Instruments (AREA)
  • Table Equipment (AREA)
  • Food-Manufacturing Devices (AREA)
EP23215834.5A 2017-12-01 2018-11-07 Mâchoires de pressage ainsi que pince de pressage avec deux mâchoires de serrage Pending EP4311627A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017128579 2017-12-01
DE102018101159.8A DE102018101159A1 (de) 2017-12-01 2018-01-19 Pressbacken, sowie Presszange mit zwei Zangenbacken
PCT/EP2018/080469 WO2019105703A1 (fr) 2017-12-01 2018-11-07 Mâchoires de sertissage ainsi que pince de sertissage avec deux mâchoires de pince
EP18803893.9A EP3718180A1 (fr) 2017-12-01 2018-11-07 Mâchoires de sertissage ainsi que pince de sertissage avec deux mâchoires de pince

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP18803893.9A Division EP3718180A1 (fr) 2017-12-01 2018-11-07 Mâchoires de sertissage ainsi que pince de sertissage avec deux mâchoires de pince

Publications (2)

Publication Number Publication Date
EP4311627A2 true EP4311627A2 (fr) 2024-01-31
EP4311627A3 EP4311627A3 (fr) 2024-07-10

Family

ID=66548313

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EP23215834.5A Pending EP4311627A3 (fr) 2017-12-01 2018-11-07 Mâchoires de pressage ainsi que pince de pressage avec deux mâchoires de serrage
EP18803893.9A Pending EP3718180A1 (fr) 2017-12-01 2018-11-07 Mâchoires de sertissage ainsi que pince de sertissage avec deux mâchoires de pince

Family Applications After (1)

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EP18803893.9A Pending EP3718180A1 (fr) 2017-12-01 2018-11-07 Mâchoires de sertissage ainsi que pince de sertissage avec deux mâchoires de pince

Country Status (11)

Country Link
US (1) US11682875B2 (fr)
EP (2) EP4311627A3 (fr)
JP (1) JP7344205B2 (fr)
KR (1) KR20200088462A (fr)
CN (1) CN111279561B (fr)
AU (1) AU2018374403B2 (fr)
CA (1) CA3081655A1 (fr)
DE (2) DE102018101159A1 (fr)
MX (1) MX2020005624A (fr)
TW (1) TWI791682B (fr)
WO (1) WO2019105703A1 (fr)

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JP2021171916A (ja) 2020-04-28 2021-11-01 ウェザッグ ゲーエムベーハー アンド コー．ケージー 圧着プライヤダイおよび圧着プライヤ
DE102020120825A1 (de) * 2020-08-06 2022-02-10 Gustav Klauke Gmbh Pressbacken sowie Verfahren zur Herstellung eines Presslings und Verfahren zum Verpressen mit Pressbacken
DE102020121823A1 (de) 2020-08-20 2022-02-24 Rennsteig Werkzeuge Gmbh Zur Durchführung einer Vercrimpung ausgebildete Handzange sowie Handzange mit einem Zangenkopf
EP3984702B1 (fr) 2020-10-19 2023-02-01 WEZAG GmbH & Co. KG Pince à serrer et procédé de montage d'une unité de moitiés de matrice
USD1000237S1 (en) * 2020-12-17 2023-10-03 Weidmueller Interface Gmbh & Co. Kg Pliers
TWD214844S (zh) * 2020-12-21 2021-10-21 加捷實業有限公司 壓接手工具
TWD215831S (zh) * 2021-04-26 2021-12-01 加捷實業有限公司 壓接手工具
USD1018231S1 (en) * 2021-06-16 2024-03-19 Apex Brands, Inc. Locking pliers
DE102022107168A1 (de) 2021-12-17 2023-06-22 Rennsteig Werkzeuge Gmbh Presszange mit zwei Zangenbacken

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Also Published As

Publication number Publication date
KR20200088462A (ko) 2020-07-22
DE202018006658U1 (de) 2021-11-11
US11682875B2 (en) 2023-06-20
TWI791682B (zh) 2023-02-11
AU2018374403B2 (en) 2022-10-27
EP4311627A3 (fr) 2024-07-10
WO2019105703A1 (fr) 2019-06-06
JP7344205B2 (ja) 2023-09-13
RU2020121396A (ru) 2022-01-04
JP2021504902A (ja) 2021-02-15
CN111279561A (zh) 2020-06-12
RU2020121396A3 (fr) 2022-02-11
TW201924868A (zh) 2019-07-01
CN111279561B (zh) 2022-10-14
MX2020005624A (es) 2020-08-20
EP3718180A1 (fr) 2020-10-07
AU2018374403A1 (en) 2020-05-07
DE102018101159A1 (de) 2019-06-06
CA3081655A1 (fr) 2019-06-06
US20210194198A1 (en) 2021-06-24

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RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR