EP3944431A1 - Outil de sertissage - Google Patents

Outil de sertissage Download PDF

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Publication number
EP3944431A1
EP3944431A1 EP21182705.0A EP21182705A EP3944431A1 EP 3944431 A1 EP3944431 A1 EP 3944431A1 EP 21182705 A EP21182705 A EP 21182705A EP 3944431 A1 EP3944431 A1 EP 3944431A1
Authority
EP
European Patent Office
Prior art keywords
crimping
force
jaws
connection
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21182705.0A
Other languages
German (de)
English (en)
Inventor
Rupert LINDNER
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.)
SW Automatisierung GmbH
Original Assignee
SW Automatisierung 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 SW Automatisierung GmbH filed Critical SW Automatisierung GmbH
Publication of EP3944431A1 publication Critical patent/EP3944431A1/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
    • H01R43/048—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
    • H01R43/0585—Crimping mandrels for crimping apparatus with more than two radially actuated 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/055—Crimping apparatus or processes with contact member feeding mechanism
    • 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
    • H01R43/0486—Crimping apparatus or processes with force measuring means
    • 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
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0482—Crimping apparatus or processes combined with contact member manufacturing mechanism
    • 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
    • H01R43/0488—Crimping apparatus or processes with crimp height adjusting means

Definitions

  • the invention relates to a crimping tool, in particular for a wire processing machine, with a base body, at least one force deflection device and at least two crimping jaws for crimping at least one crimp connection with at least one conductor, the at least two crimping jaws being movable relative to the base body by the at least one force deflection device. Furthermore, the invention relates to a wire processing machine with at least one crimping tool, in particular at least one such crimping tool, at least one drive unit for applying force, at least one force-deflecting device and at least one movement device. The invention also relates to a method for crimping at least one crimped connection with at least one conductor using a wire processing machine, in particular using such a wire processing machine.
  • Such a crimping tool is already known from the scriptures EP 0 732 779 known, in which a pressing system is used in order to be able to produce a crimp with a four- or hexagonal press profile.
  • An external drive ring is actuated by a drive via a toggle lever construction, which moves four or six pivoting crimping jaws for crimping.
  • a disadvantage of the prior art is that the crimping tool is not suitable for an automated arrangement of crimped connections with conductors and crimping of the crimped connections with the conductors—in particular in a wire processing machine.
  • Another crimping tool is already from Scripture WO 2019/134834 known, in which a crimping process is effected by rotating a drive shaft which is arranged along an axis of symmetry of four crimping jaws.
  • the disadvantage of the prior art is that the only defined operating positions are an open position for feeding in the crimp connections and a crimp position for crimping, which limits the functionality and in particular requires separate removal devices, for example to change a crimp connection when a crimp connection has been inserted diameter to be able to crimp.
  • no information is available as to whether the crimping was carried out properly or whether the crimping was sufficient in relation to specific quality criteria.
  • the drive shaft is always in a force-transmitting connection to the crimping jaws, whereby, for example, an incompletely open position of the crimping jaws with a crimp connection arranged therein without premature crimping and/or without play—in particular for transporting the crimp connection—cannot be guaranteed.
  • a disadvantage of the prior art is that a separate transport device is required, which maneuvers the crimped connection to the crimped position.
  • the crimping tool can only be equipped with crimp connections and conductors from one side of the crimping tool due to the structural design.
  • the objective technical task of the present invention is therefore to provide a crimping tool that is improved over the prior art, as well as a wire processing machine and a method for crimping, in which the disadvantages of the prior art are at least partially eliminated, and which are particularly characterized by the possibility of a automated, double-sided and flexible loading and unloading of crimp connections as well as a reduction in component components that are separate from the crimping tool, such as a shuttle for transporting crimp connections to the crimping position.
  • At least one compensating device via which at least three processing positions of the at least two crimping jaws can be approached, depending on a relative position of the at least one force-deflecting device to the at least one compensating device, with an energy accumulator, which is arranged in particular on the base body, being provided through which, in a processing position of the at least two crimping jaws, in particular in which essentially no force can be transmitted to the at least two crimping jaws from the at least one force-deflecting device, a non-positive connection between the at least one crimping connection and the at least two crimping jaws by a movement of the at least two crimping jaws can be produced relative to the base body.
  • the at least one compensating device can be used to achieve defined positions of the at least one force-deflecting device - for example relative to a hollow shaft - to move the at least two crimping jaws, which depends on the relative position of the at least one force-deflecting device specific positions of the at least two crimping jaws are required for the at least one compensation device.
  • the at least one compensating device makes it possible for the at least one force-deflecting device to be moved, compared to the positions known from the prior art, into a position in which essentially no force can be transmitted to the at least two crimping jaws, with this position being used for this purpose, for example can transport the at least one crimped connection without undesirably crimping or losing the crimped connection by the at least one force-deflecting device.
  • crimping is defined by a joining process whereby two components are connected by means of compression via plastic deformation. Flanging, squeezing, crimping or folding can be assigned to this joining process.
  • the pressing takes place via the at least two crimping jaws of the crimping tool, as a result of which a form-fitting connection between the crimped connection and the conductor is generated.
  • the at least one force-deflecting device can, for example, be arranged in the sense of contacting the at least one compensation device and/or can be arranged movably within the at least one compensation device, for example.
  • the invention makes it possible for the at least one crimp connection to remain securely located in the at least two crimping jaws during a pivoting process of the crimping tool from an assembly position into a crimping position.
  • no plastic deformation is effected by the crimping tool in front of the crimping position, with this situation being generated in the prior art by the high over a drive unit Contact forces - especially with varying crimp connection diameters - cannot be guaranteed.
  • the at least one energy accumulator particularly preferably has a spring constant which, for different crimp connection cross sections, enables a non-positive connection in the crimping tool during a transition from an assembly position to a crimping position, without generating a premature positive connection due to excessive pressures acting between the at least two crimping jaws. This requires a particularly favorable feeding of the at least one conductor to the at least one crimped connection in the crimped position.
  • the at least one force accumulator particularly preferably acts in that relative position of the at least one force deflection device with respect to the at least one compensating device in which essentially no force acts on the at least two crimping jaws through the at least one force deflection device.
  • the crimping tool can be used, for example, in a stand-alone device as a crimping machine or in a fully automated wire assembly machine.
  • protection is also sought for a wire processing machine with at least one such crimping tool, at least one drive unit for applying force to the at least one force directing device and at least one movement device, characterized in that the at least one crimping tool is moved by the at least one movement device, preferably between an assembly position and a crimping position, particularly preferably pivotable about a horizontal axis, it being provided in particular that the non-positive connection can be maintained by the at least one movement device during a movement of the at least one crimping tool.
  • the at least one movement device can be used to move the at least one crimping tool together with the at least one drive unit from a vertical assembly position, in which the at least one crimped connection can fall into the at least one crimping tool due to the force of gravity, to a horizontal crimping position, with between the assembly position and the crimping position the at least one crimp connection remains located in the at least one crimping tool.
  • An energy accumulator that may be present can ensure a non-positive connection during the movement, with an undesirably high compression force being prevented by the at least one force-deflecting device.
  • the cable processing machine can be designed as a wire end processing machine.
  • the wire processing machine can be present, for example, as an in particular automated crimping machine, wire end processing machine, processing machine with included stripping device or the like.
  • a shuttle for transporting the at least one crimp connection is not required here and crimp connections can be fitted on both sides done automatically from a front and a back of the at least one crimping tool.
  • the conductor is moved to the crimping tool.
  • the crimping tool and/or the wire processing machine makes it possible for the at least one crimped connection to be moved to the at least one conductor by the crimping tool.
  • the operating positions of the at least one hollow shaft correspond geometrically to the processing positions of the at least two crimping jaws.
  • the at least one compensating device is arranged, preferably on the circumference, on at least one hollow shaft, wherein at least three operating positions of the at least one hollow shaft can be approached depending on a relative position of the at least one force-deflecting device to the at least one compensating device and at least three processing positions of the at least two crimping dies can be approached via the at least three operating positions of the at least one hollow shaft.
  • the at least one hollow shaft Due to the at least one hollow shaft, erroneous loading can be eliminated without manual intervention or stopping the machine.
  • the at least one hollow shaft allows the required crimping force to be transmitted radially inwards via the at least two crimping jaws, with the structural design allowing crimp connections and conductors to be fitted and removed flexibly on both sides, in particular automatically.
  • the force-deflecting device is particularly preferably in the form of an eccentric lever which is arranged on an eccentric drive unit which acts on the at least one hollow shaft, in particular peripherally, and moves the at least two crimping dies for crimping by the application of force to the at least one hollow shaft.
  • the at least one hollow shaft can be designed, for example, in the form of a drive ring.
  • the at least one hollow shaft in combination with the at least one force accumulator makes it possible to gently hold the at least one crimp connection for transport and to be able to initiate crimping with high compression forces essentially instantaneously, with loading or equipping on both sides being particularly beneficial.
  • the at least two crimping dies are movably mounted on the at least one hollow shaft, preferably via at least one connecting means, the at least two crimping dies being moved into a large number of processing positions, preferably an ejection position, via the at least one hollow shaft. an open position, a holding position and/or a crimping position.
  • This enables movement coupling between the at least two crimping jaws and the at least one hollow shaft, whereby when the at least one hollow shaft rotates, the at least two crimping jaws reduce or increase a distance from one another in order to be able to eject, pick up, hold and/or crimp a crimped connection.
  • the at least two crimping jaws reduce or increase a distance from one another in order to be able to eject, pick up, hold and/or crimp a crimped connection.
  • a crimp connection for example with a crimp connection diameter of 2.1 mm, can be inserted with play into an opening of 2.4 mm diameter defined by the crimping jaws, with the opening being reduced to 2.1 mm by the crimping jaws in the holding position in order to hold the crimp connection frictionally without play without positive locking, and the opening is optionally increased in the ejection position to a level with which the crimp connection, including a plastic collar, can be automatically removed from the crimping tool without mechanical intervention.
  • the at least one crimp connection is arranged around the at least one conductor by the crimping tool and the crimping takes place essentially immediately thereafter via the crimping position of the at least two crimping jaws.
  • the at least one conductor can also be moved in the direction of the at least one crimp connection.
  • the ejection position is particularly preferably defined geometrically by a dead center position of the at least one force-deflecting device on a drive unit and/or by stops in bulges in the at least one hollow shaft for the at least two crimping jaws and/or at least one connecting element.
  • a stop for the at least one force-deflecting device is also possible.
  • the at least one connecting means is particularly preferably connected in an articulated manner to the at least two crimping jaws and/or the at least one hollow shaft, preferably via bearing pins. Furthermore, the at least two crimping jaws are particularly preferably connected, preferably by bearing pins, articulated to the at least one hollow shaft via at least one bearing ring.
  • the crimping tool is not limited to a movement of the at least two crimping jaws over the at least one connecting means.
  • the at least one crimp connection can be connected in a non-positive manner to the at least two crimping jaws by the at least one energy storage mechanism when the at least two crimping jaws are in the holding position, preferably with the at least one hollow shaft being connected via a tensile force of the at least one energy storage mechanism starting from the open position in the holding position of the at least two crimping jaws can be rotated and held in the holding position.
  • the tensile force of the at least one force accumulator creates a non-positive connection of the at least one crimp connection can do with the crimping tool.
  • the tensile force is particularly preferably selected in such a way that crimp connections of different crimp connection diameters remain in a fixed position in the crimping tool during transport through the crimping tool.
  • the crimping tool comprises exactly two, exactly four or exactly six crimping jaws.
  • Varying crimp profiles can be generated by using a different number of crimp jaws. Trapezoidal crimp profiles, rectangular crimp profiles and hexagonal crimp profiles have proven to be particularly preferred.
  • the at least one force-deflecting device comprises at least one rod, preferably at least one connecting rod with at least one bolt, particularly preferably integrally connected to the at least one connecting rod, for the transmission of force to the at least one hollow shaft, it being preferably provided that the at least one rod has a receptacle for force-transmitting connection with at least one drive unit.
  • the at least one rod can cause a rotation of the at least one hollow shaft, which is particularly favored by the at least one force-deflecting device—in particular in the case of a drive unit as a linear motor.
  • a connecting rod--initiated for example, by a servomotor as an eccentric drive--an advantageous power transmission to the hollow shaft can be made possible by converting rotational energy into translational energy.
  • the at least one compensating device is designed in the form of at least one opening, preferably at least one oblong hole, it being preferably provided that at least one bolt that may be present in the at least one opening can be moved, particularly preferably linearly.
  • the compensating device is particularly preferably arranged in a materially bonded manner on the at least one hollow shaft.
  • the compensating device allows the at least one hollow shaft to be approached in a defined manner via the at least one force-deflecting device, with the at least two crimping jaws being able to be moved into the position required for a processing step corresponding to the positions of the at least one hollow shaft.
  • the at least one energy accumulator is designed as a spring, preferably as a tension spring.
  • the energy accumulator can also be in the form of a fluid energy accumulator such as a pneumatic or hydraulic energy accumulator.
  • the force accumulator causes the non-positive connection in the holding position of the at least two crimping jaws when the at least one force directing device is inactive, with the force directing device being located in an inactive position relative to the at least one compensating device.
  • the at least one force accumulator can also be formed by a further drive unit, preferably with a further force deflection device, with the further drive unit being adapted to a frictional connection of the crimp connections with the crimping jaws without an undesired positive connection.
  • the high crimping forces required to be transmitted through the drive shaft for the crimping are not suitable for this purpose
  • the crimping tool has a through-opening through which the at least one crimp connection in an operating position of the at least one hollow shaft, particularly preferably automatically, on both sides, preferably through at least an unloading device that can be removed and/or loaded, preferably by at least one loading device.
  • the number of through openings is generally arbitrary.
  • the through opening particularly preferably extends over the entire crimping tool, in particular over the base body, the at least one hollow shaft and a bearing ring that may be present.
  • the at least one crimp connection is in the form of a ferrule, a cable lug and/or a blade terminal sleeve.
  • crimp connections for cable assembly such as turned contacts, are also possible.
  • the ferrules can be designed with or without a plastic collar and/or with a variable ferrule length.
  • the at least one crimp connection and/or the at least one conductor can be fed in and/or removed from a front and/or a rear side of the crimping tool, preferably in an optionally present ejection position of the at least two crimping jaws.
  • the at least one crimped connection can be fed in and/or removed fully automatically, semi-automatically or manually and/or in any spatial position of the crimping tool.
  • At least one sensor preferably at least one force measurement sensor and/or at least one displacement measurement sensor, is arranged on the crimping tool, preferably on the at least one force deflection device, for determining at least one crimping parameter.
  • the at least one sensor can be used to measure operating parameters relevant to the crimping tool and/or a wire processing machine, such as the contact pressure of the at least two crimping jaws or the distance covered by the at least one force-deflecting device, with suitable mathematical models particularly being able to be used to calculate conclusions about other crimping parameters.
  • the at least one drive unit can be designed in the form of an electric drive unit, preferably as a servomotor and/or as a linear motor.
  • the at least one crimping tool comprises at least one force-deflecting device to which force is applied by the at least one drive unit, at least one compensating device being arranged on the at least one force-deflecting device and the at least one compensating device being arranged on at least one hollow shaft, wherein at least three operating positions of the at least one hollow shaft can be approached depending on a position of the at least one force-deflecting device relative to the at least one compensating device.
  • the at least three operating positions can be produced in any pivoting position of the at least one crimping tool (caused by the at least one movement device).
  • the crimping tool comprises at least one hollow shaft and at least one energy accumulator arranged on the at least one hollow shaft, with the at least one energy accumulator in an operating position of the at least one hollow shaft creating a non-positive connection between the at least one crimp connection and the at least two crimping jaws can be produced, it being preferably provided that the non-positive connection can be maintained by the at least one movement device during a pivoting process.
  • the non-positive connection is particularly preferably generated by transmission of force from the at least one hollow shaft via at least one connecting element to the at least two crimping jaws.
  • the at least one crimped connection can be transported from the assembly position to the crimped position and the at least one crimped connection can be crimped with the at least one conductor in the crimped position using the same crimping tool, it preferably being provided that the Crimping can be carried out by the crimping tool essentially immediately after transport to the crimping position.
  • the at least one crimp connection falls from a magazine with different crimp connection diameters in the open position of the at least two crimping jaws between the at least two crimping jaws, wherein the at least one crimping tool can be pivoted individually to that position on the magazine that contains the desired crimp connection diameter. If a changed crimp connection diameter is required, the at least one crimping tool can move into the eject position and the previous crimp connection falls out of the crimping tool.
  • the crimp connection can be held in the holding position by the at least one energy storage device and pivoted together with the crimping tool into the crimping position, with a crimp being produced after at least one conductor has been fed in by being transferred to the crimping position can be carried out.
  • At least one sensor preferably at least one force measuring sensor and/or at least one displacement measuring sensor, for determining at least one crimping parameter is arranged on the at least one crimping tool, preferably on the at least one force-deflecting device, and/or the at least one drive unit.
  • the at least one drive unit can also cover required distances be stored for different crimp connection diameters, which can be checked by measurement data from the at least one sensor.
  • At least one actual value for at least one crimping parameter preferably in relation to a position of the at least one drive unit and/or at least one distance covered by the at least one force-deflecting device, can be determined by the at least one sensor.
  • At least one control and/or regulation unit comprises at least one storage unit and at least one computing unit and at least one setpoint value for at least one crimping parameter is stored in the storage unit and/or can be stored, it preferably being provided that the at least one setpoint value can be compared with at least one actual value via the at least one computing unit.
  • a statement can be made, for example, as to whether the crimping carried out corresponds to defined quality criteria such as a degree of plastic deformation or whether plastic deformation of the at least one crimp connection was already generated before the crimping.
  • An advantageous variant consists in that at least one display device is provided, which is in a signal-transmitting data connection with the at least one control and/or regulation unit or can be brought into such a data connection, with the at least one display device depending on the comparison of the at least one setpoint with an electronic message can be output from the at least one actual value.
  • an operator of the cable processing machine can be informed that the crimping has been carried out correctly and/or whether an action such as rejecting the connection of the crimped connection to the conductor is required.
  • the at least one crimp connection and/or the at least one conductor preferably in an ejection position of the at least two crimping jaws, can be fed and/or from a front side and/or a rear side of the at least one crimping tool in any position of the at least one movement device is removable.
  • the at least one crimped connection in the holding position and/or during the movement from the assembly position to the crimped position by the at least one energy accumulator via a non-positive connection between the at least one crimped connection and the at least two crimping jaws in the at least holding a crimping tool.
  • essentially no force is transmitted from the at least one force introduction device to the at least one hollow shaft, with movement of the at least one force introduction device allowing the frictional connection to change into a positive connection or the frictional connection to be released.
  • the at least one crimped connection in the crimping position, is connected to the at least one conductor with a square profile, a polygonal profile and/or a trapezoidal profile.
  • the crimp connection profile is generally defined by the number of crimping jaws and/or the orientation of the at least two crimping jaws relative to one another. Four crimping jaws arranged symmetrically to one another are particularly preferred.
  • the at least one conductor in the crimping position is fed, preferably linearly, to the at least one crimp connection arranged in the at least one crimping tool and/or the at least one crimp connection arranged in the at least one crimping tool is fed, preferably linearly, in the direction of the at least one conductor is moved.
  • the at least one conductor is always moved in the direction of the crimping tool. More flexibility is offered here by the possibility of being able to move the at least one crimped connection with the crimping tool both from an assembly position to the crimping position and also to the conductor when the conductor is in a securely positioned position.
  • the at least one control and/or regulation unit enables an analysis of the crimping process, with a smooth crimping process being able to be monitored by considering crimping parameters to be determined and/or stored, with statistical considerations for quality control using a history of the cable processing machine can be made possible. This significantly reduces the risk of inferior crimping.
  • the algorithm can include machine learning, artificial intelligence, or suitable mathematical models.
  • Utilization values of the at least one drive unit are particularly preferably evaluated via the at least one control and/or regulation unit, wherein the at least one control and/or regulation unit can be integrated in the at least one drive unit and/or can be configured separately from the at least one drive unit .
  • the force value achieved during crimping as a crimping parameter provides information about the pressing resistance to be overcome, based on the at least one conductor in combination with the at least one crimp connection arranged on it.
  • a force-displacement evaluation can be used for quality control of the crimping process and for appropriate measures in the event of deviations from defined crimping parameters such as a degree of form fit of the crimping and/or operating parameters such as the degree of utilization of the drive unit.
  • the force values i.e.
  • the pressing resistance in combination with the travel values, on the one hand provide a crimping process window that is characteristic of the respective pressing case for automated crimping process quality control and, on the other hand, enable any missing wire strands of the at least one conductor, any wrong crimp connections in cross section, length or otherwise identify quality defects.
  • a position of the at least one force-deflecting device and a degree of utilization of the at least one drive unit can be determined very precisely, with a required crimping force value for the crimping being able to be calculated via the crimp connection diameter. If the required crimping force value is exceeded or not reached by a tolerance, which can be determined by the at least one sensor and/or can be determined via the at least one control and/or regulation unit, the connection can be automatically removed as rejects and/or a changed one Crimp connection are positioned in the crimping tool.
  • the at least one open-loop and/or closed-loop control unit may monitor the method, taking into account operating parameters of the at least one drive unit, an angular position of the at least one force directing device and/or a crimping force transmitted by the at least one force directing device and/or a connection of the at least assigns a crimp dimension to a crimp connection with the at least one conductor.
  • the crimp dimension reflects the crimp dimension and can be individually adapted to specific crimp connection diameters and/or conductor diameters, with the respective required crimping force being able to be adjusted automatically by the at least one drive unit and monitored via the at least one sensor.
  • an automated stripping device preferably the wire processing machine Part of a sheathing of a cable to expose the conductor of the cable is stripped.
  • the wire processing machine can remove the sheathing or insulation of the cable, in particular the electronic cable, which is arranged around the conductor.
  • the conductor can be formed by a single wire or a multiplicity of wire strands.
  • the at least one crimp connection and/or the at least one conductor preferably in an ejected position of the at least two crimping jaws, from a front side and/or a rear side of the at least one crimping tool through a through-opening of the at least one crimping tool, particularly preferably automatically , preferably removed by at least one unloading device and/or, preferably by at least one loading device, is loaded
  • the at least one unloading device and/or at least one loading device can be designed so that it can be operated fully automatically.
  • An unloading mandrel and/or a loading mandrel have proven particularly favorable.
  • the through-opening is particularly preferably configured cylindrically.
  • the crimping tool 1 shows a crimping tool 1 for a wire processing machine 2 with four crimping jaws 3 for crimping a crimped connection 4 with a conductor 5.
  • the crimping tool 1 comprises a force deflection device 6, with a compensating device 7 being arranged on the force deflecting device 6, with the compensating device 7 being integrally connected to a hollow shaft 8 is peripherally connected to an outer lateral surface of the hollow shaft 8 in the form of a drive ring.
  • the crimping tool 1 comprises an energy accumulator 9 arranged on the circumference of the hollow shaft 8, with the energy accumulator 9 in an operating position of the hollow shaft 8 in which the force-deflecting device 6 exerts essentially no force on the compensating device 7 exclusively creating a non-positive connection 10 (without a form-fitting connection ) of a crimp connection 4 (not visible in the illustration for reasons of clarity) and the four crimping jaws 3 can be produced.
  • the compensating device 7 is designed as an opening 21 in the form of a slot 22, with a bolt 18 being linearly movable in the slot 22.
  • Fig. 1b shows the crimp connection 4 in the form of a ferrule 27 with a plastic collar of varying diameter in relation to a crimp connection diameter.
  • a cable lug or a blade terminal sleeve can also be used between the crimping lugs 3.
  • the conductor 5 was already freed from a section of a sheathing (shown dotted) of a cable in a preceding method step using an automated stripping device of the wire processing machine 2 in order to expose the conductor 5 of the cable.
  • the conductor 5 was only indicated in the illustration for illustration purposes in order to clarify the positioning relative to the crimp connection 4 since the crimping tool 1 is shown in the assembly position 32 in which the crimp connection 4 is fed in the direction of the crimp jaws 3 due to gravity.
  • the conductor 5 is linearly fed in the crimping position 33 to the crimp connection 4 arranged in the crimping tool 1 .
  • the crimp connection 4 arranged in the crimping tool 1 can also be moved linearly in the direction of the conductor 5 in order to then carry out the crimping.
  • the movement device 31 is indicated schematically and is not shown in the other figures for reasons of clarity; the movement device 31 can generally be formed by a robot arm or by some other rotational and/or translational component such as, for example, a—particularly pneumatically operated—pivot arm.
  • the crimping tool 1 can be pivoted about a horizontal axis 34 by the movement device 31 between the loading position 32 and the crimping position 33 . In general, however, the crimping tool 1 can be pivoted about any axis and/or moved along any axis will.
  • the crimping tool 1 can be pivoted via the movement device 31 into an assembly position 32 in which the crimp connection 4 can be fed vertically to the four crimping jaws 3 due to the force of gravity, and into a crimping position 33 spatially separate from the assembly position 32 .
  • the crimping jaws 3 can be moved relative to a base body 44 by the force deflection device 6 , four defined processing positions of the crimping jaws being able to be approached via the compensating device 7 arranged on the force deflection device 6 .
  • the processing positions correspond to four operating positions of the hollow shaft 8 defined by the compensating device 7 , the processing positions not being limited to one hollow shaft 8 .
  • a control and/or regulation unit 37 is provided, the control and/or regulation unit 37 comprising a storage unit 38 and a computing unit 39 .
  • the control and/or regulation unit 37 has a radio module in order to communicate with a sensor 30 (not shown) of the drive unit 20 and a radio module of a sensor 30 arranged on the force-deflecting device 6 .
  • the control and/or regulation unit 37 can also be connected to the drive unit and/or a sensor 30 by cable.
  • Target values for crimping parameters are and can be stored in memory unit 38 , the target values being compared with actual values determined by sensor 30 via computing unit 39 .
  • the control and/or regulation unit 37 can, for example, be an integral part of a machine control system.
  • a display device 40 is provided, which is in a signal-transmitting data connection with the control and/or regulation unit 37 .
  • An electronic message 41 is output via the display device 40 depending on the comparison of the desired values with the actual values.
  • the four crimping jaws 3 are rotatably mounted on a bearing ring 43 via bearing pins 42, with the bearing ring 43 being connected to the hollow shaft 8 To reduce the distance between the crimping jaws 3, whereby a crimp can be performed.
  • a connecting means 11 is rotatably mounted on each of the four crimping jaws 3 via a respective bearing pin 42 , the four connecting means 11 being rotatably mounted on the hollow shaft 8 via a respective bearing pin 42 .
  • the hollow shaft 8 rotates - for example initiated by the eccentric drive via the at least one force-deflecting device 6 - the crimping jaws 3 pivot inwards or backwards as a result of a kinematic interaction between the bearing pins 42 arranged in a secure position on the bearing ring 43 and the bearing pins 42 arranged on the hollow shaft 8 Outside.
  • the hollow shaft 8 has bulges on an inner lateral surface, which define an ejection position.
  • the ejection position can also be defined (in particular in terms of control technology) by the drive unit 20 or via a stop of the force-deflecting device 6 (in particular on a structural component of the wire processing machine 2).
  • the force-deflecting device 6 comprises a rod 16 in the form of a connecting rod 17 with two bolts 18 cohesively connected to the connecting rod 17 for force transmission to the hollow shaft 8 .
  • the connecting rod 17 has a receptacle 19 for the force-transmitting connection to the drive unit 20 .
  • the drive unit 20 is in the form of an electric drive unit as a servomotor 35 .
  • the control and/or regulation unit 37 compares an actual value for a crimping parameter determined by the sensor 30 with a target value for a crimping parameter, an evaluation and quality control is carried out by an algorithm and by comparisons over a defined period of time, the connection of the crimped connection 4 with the conductor 5 categorized, an electronic message 41 output on the display device 40 to a quality of connection of the crimp connection 4 to the conductor 5 and set a measure before and after the crimping.
  • the measure can represent, for example, failure to intervene in the crimping process, removal of the crimp connection 4 , failure of the connection of the crimp connection 4 to the conductor 5 or changes in the operating parameters of the wire processing machine 2 .
  • the control and/or regulation unit 37 monitors the crimping process, taking into account operating parameters of the drive unit 20, an angular position of the force deflection device 6 and a crimping force transmitted by the force deflection device 6, and assigns a crimp dimension to a connection of the crimp connection 4 to the conductor 5.
  • Figure 3a differs from Fig. 1b to the effect that the compensating device 7, the force-deflecting device 6 and the drive unit 20 are structurally modified.
  • the compensating device 7 has an opening 21 in which a rod 16 can be moved linearly in order to generate the operating positions of the hollow shaft 8 .
  • a sensor 30 is integrated in the rod 16 .
  • the drive unit 20 is designed as a linear motor 36 in the form of an electric drive unit.
  • the drive unit 20 can also be in the form of a mechanical, pneumatic, hydraulic and/or cam-controlled drive unit 20 .
  • FIG. 1 shows a wire processing machine 2, the movement device 31 not being shown for reasons of clarity.
  • the crimping tool 1 has six crimping jaws 3, as a result of which a hexagonal crimping profile is produced during a crimp.
  • the energy accumulator 9 is designed as a spring 23 in the form of a tension spring.
  • the force accumulator 9 is not limited to this embodiment.
  • the sensor 30 arranged on the force-deflecting device 6 comprises a force-measuring sensor and a path-measuring sensor for determining crimping parameters.
  • a transport of the crimp connection 4 from the assembly position 32 (see Figure 3a ) to crimp position 33 (see Fig. 1a ) and a crimping of the at least one crimp connection 4 with the conductor 5 in the crimping position 33 is carried out with the same crimping tool 1 .
  • the crimping takes place immediately after being transported to the crimping position 33 by the crimping tool 1.
  • the hollow shaft 8 is mounted on the base body 44 via a bearing ring 43 .
  • a cover serves as an axial bearing for the hollow shaft 8 and as an abutment for the bearing pins 42.
  • the bearing pins 42 arranged on the connecting elements 11 and the crimping jaws 3 are designed as axles.
  • the bearing pins 42 are inserted into the bearing ring, with the crimping jaws 3 being pivotably mounted on the bearing pins 42 .
  • a kinematically coupled sequence of movements of the crimping jaws 3 with the hollow shaft 8 is generated via the connecting elements 11 , the crimping jaws being pivotably arranged on the hollow shaft 8 .
  • Figures 4a to 4d 5a and 5b show different positions of the crimping jaws 3, which correspond to the operating positions of the hollow shaft 8 and are defined by a relative position of the force-deflecting device 6 with respect to the compensating device 7.
  • Figure 4a shows a crimping tool 1 with four crimping jaws 3, which are arranged on the hollow shaft 8 and a bearing ring 43 via connecting means 11 and bearing pins 42, the crimping jaws 3 being movably mounted on the hollow shaft 8.
  • the crimping jaws 3 can be moved via the hollow shaft 8 by the application of force by the energy accumulator 9 or the force deflection device 6 into the processing position of an ejection position 12, an open position 13, a holding position 14 and a crimping position 15, wherein Figure 4a shows the open position 13, in which provision is made for the crimp connection 4 to be fed to the crimping tool 1.
  • the bolt 18 rests against a side surface of the elongated hole 22 and opens the crimping jaws 3 by a pulling movement against an opposing pulling force from the energy accumulator 9.
  • Figure 4b differs from Figure 4a only to the effect that the bolt 18 does not generate any force transmission via a side surface of the elongated hole 22, with the tension spring 23 bringing the crimping jaws 3 together into the holding position 14 in order to secure the ferrule 4 during transport to a crimping position 33.
  • the crimp connection 4 is connected in a non-positive manner to the crimping jaws 3 by the energy store 9, with the hollow shaft 8 rotating via the tensile force of the energy store 9, starting from the open position 13 into the holding position 14 of the crimping jaws 3 and in the holding position 14 is held.
  • the crimp connection 4 is held in the holding position 14 and during the pivoting from the loading position 32 into the crimping position 33 by the energy accumulator 9 in the form of the tension spring 23 via the non-positive connection 10 between the crimp connection 4 and the crimping jaws 3 in the crimping tool 1.
  • the force-deflecting device 6 is in an inactive position relative to the compensating device 7, with only the tensile force acting on the crimping jaws 3 through the energy store 9 via the hollow shaft 8 in order to generate and close the holding position 14 as one of the four defined processing positions of the crimping jaws 3 keep.
  • Figure 4c differs from Figure 4a in the number of crimping jaws 3 with six crimping jaws 3 and the drive unit 20, which is designed as a linear drive 26.
  • a hexagonal crimping profile is produced via the crimping jaws 6 .
  • a trapezoidal crimping profile for example, can also be generated after a crimp has taken place using a suitable number of crimping jaws 3 .
  • the drive unit 20 as an eccentric drive exerts a force on the circumference of the hollow shaft 8 by rotating via the force-deflecting device 6 as an eccentric lever, with a force acting on the hollow shaft 8 being only marginally increased or reduced by means of the tensile force.
  • Figure 4d shows the wire processing machine 2 Figure 4c in the holding position 14, wherein the crimping tool 1 includes a force applied by the drive unit 20 force deflection device 6 and on the force deflection device 6, the compensating device 7 is arranged.
  • the compensating device 7 is arranged indirectly via a joint on the hollow shaft 8 , the four operating positions of the hollow shaft 8 being generated depending on a relative position of the force-deflecting device 6 to the compensating device 7 with an opening 21 .
  • the force accumulator 9 produces a non-positive connection 10 between the crimp connection 4 and the six crimping jaws 3, wherein the non-positive connection 10 can be maintained via the energy store 9 during a pivoting process by the at least one movement device 31.
  • the crimping tool 1 has an energy accumulator 9 arranged on the base body 44, with the energy accumulator 9 arranged peripherally on the hollow shaft 8 in a processing position of the crimping jaws 3, in which no force is transmitted to the crimping jaws from the force-deflecting device 6, a non-positive connection 10 is produced between the crimping connection 4 and the crimping jaws 3.
  • Figure 5a shows the four crimping jaws 3 of the crimping tool 1 in the crimping position 15, with the force-deflecting device 6 on an opposite side surface of the elongated hole 22 in comparison to Figure 4a is present and transmits force in the same direction of rotation to the hollow shaft 8 as the tensile force of the tension spring 23 .
  • the crimped connection 4 is connected to the conductor 5 with a square profile.
  • Figure 5b shows the crimping tool 1 with a linear motor 36 and six crimping jaws 3, a sensor 30 with an included force measuring sensor and a distance measuring sensor for determining crimping parameters being arranged on the force deflection device 6.
  • a sensor 30 can also be arranged on or in the drive unit 20 .
  • the crimping tool 1 shows the crimping tool 1 with four crimping jaws 3 in a view from the front 28 and a sectional view arranged above in the direction of the arrow.
  • the crimping tool 1 has a through-opening 24 through which the crimp connection 4 can be automatically loaded on both sides in that operating position of the hollow shaft 8 in which the crimping jaws 3 are arranged in the ejection position 12 .
  • Gravity-induced assembly by means of crimp connections 4 and unloading of crimp connections 4 in the assembly position 32 has proven to be particularly favorable, with the crimp connections 4 generally being in any position of the Crimping tool 1 can be removed by an unloading device 25 and can be loaded by a loading device 26 .
  • the crimping jaws 3 are open so wide that the crimped connection 4 can fall out through the through-opening 24 and/or can be inserted into the crimping tool 1 from the rear 29.
  • Figure 7a shows the ejection position 12 of the crimping jaws 3, the crimping connection 4 being able to be fed to and removed from the crimping jaws 3 from the front 28 and the rear 29 of the crimping tool 1 via the through-opening 24.
  • the conductor 5 in the eject position 12, the open position 13 and the holding position 14
  • Automatic unloading of the crimp connection 4 is shown by an unloading device 25 in the form of an unloading mandrel, with the crimp connection 4 analogously being able to be automatically fed on both sides by a loading device 26—for example in the form of a loading mandrel.
  • Figure 7b shows a loading device 26 as a loading mandrel during an assembly of the crimp connection 4 as a ferrule 27.
  • the crimp connection 4 can be automatically removed from the crimping jaws 3 and/or the crimping jaws 3 in the assembly position 32, the crimping position 33 and a position between the assembly position 32 and the crimping position feedable.
  • a similar consideration applies to the conductor 5 with regard to the positioning in the crimping tool and in the crimp connection 4 .
  • FIG. 8 shows a wire processing machine 2 with a crimping tool 1 comprising four crimping jaws 3 in a holding position 14, as a result of which the crimped connection 4 in the form of a ferrule 27 is held in the crimping tool 1 in a force-fitting manner by the energy accumulator 9.
  • the crimping tool 1 is located in the crimping position 33, a crimp connection 4 having already been received by a crimp connection magazine 45 as a crimp connection feed.
  • a conductor 5 can also be fed to the crimping dies 3 from the rear 29 via a further wire feed device 46, which can be identical to the wire feed device 46, since the crimping tool has a through opening 24 and in particular a hollow shaft 8 for loading and/or unloading on both sides.
  • the conductor 5 can also be removed from the crimped connection 4 with the aid of the wire feed device.
  • a loading device 26 and/or an unloading device 25 for the crimp connection 4 can be provided in a similar way, but this is not absolutely necessary due to the structural design of the crimping tool 1 and in particular due to a movement device 31 .
  • the wire processing machine 2 comprises three movement devices 31, with two slides that can be moved via rails ensuring a linear movement of the crimping tool 1 in two Cartesian coordinates.
  • the third movement device 31 enables the crimping tool 1 to be pivoted about a horizontal axis 34 in order to pivot the crimping tool 1 between a vertical loading position 32 and a horizontal crimping position 33, with no shuttle for feeding the crimped connection 4 into the crimping tool 1 being required.
  • a swivel arm or a swivel drive can be used for this purpose.
  • the crimping tool 1 can be moved at any angle and/or by any xy distance, so that the crimping position 33 and the assembly position 32 can be arranged anywhere in space and, in particular, different crimp connections 4
  • a particular advantage of the wire processing machine 2 is that it enables the crimping tool 1 to be moved in the direction of the conductor 5 and/or the crimp connection magazine 45, with the crimp connection magazine 45 and/or the conductor 5 being able to be positioned in a stationary manner.
  • Figure 9a differs from 8 only by one viewing direction of the representation.
  • the drive unit 20 can be seen here, which is designed as a servomotor 35 in the form of an eccentric drive for the force-deflecting device 6 .
  • the wire processing machine 2 is not limited to the specific drive unit 20, in which case, for example, other types of drive can be provided for moving the force-deflecting device 6 relative to the compensating device 7 in order to be able to approach the different processing positions of the crimping jaws 3 by moving the hollow shaft 8.
  • a holding position 14 for a non-positive connection 10 - in particular for transport without premature crimping - and an ejection position 12 for loading or unloading on both sides are made possible.
  • Figure 9b shows the crimping tool 1 in the loading position 32 in a vertical orientation, with the crimp connection 4 falling out of the crimp connection magazine 45 between the crimping jaws 3 due to the force of gravity and being arranged in the crimping tool 1 with a positive fit by a collar when the open position 13 is present.
  • the force-deflecting device 6 is moved relative to the compensating device 7, so that the force-deflecting device 6 does not exert any force on the crimping jaws 3 and the Energy accumulator 9 rotates the hollow shaft 8 so that the crimping dies 3 pass into the holding position 14 for holding the crimped connection 4 in a non-positive manner.
  • the movement device 31 can then move the crimping tool 1 into the crimping position 32 without losing the crimped connection 4 or prematurely deforming it plastically.
  • Figures 10a and 10b show the wire processing machine 2 in two different crimping positions 33, with the crimping tool 1 being pivoted in different directions about the horizontal axis 34, starting from an assembly position 32.
  • the front side 28 thus points in different directions in space in the crimping positions 33, which means that crimping can take place particularly quickly, for example depending on the crimped connection 3 and/or a diameter of the conductor 5, since a time delay due to any necessary changeover processes can be prevented.
  • the wire processing machine 2 can also be used particularly flexibly.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
EP21182705.0A 2020-07-21 2021-06-30 Outil de sertissage Pending EP3944431A1 (fr)

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ATA50628/2020A AT523722B1 (de) 2020-07-21 2020-07-21 Crimpwerkzeug

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EP3944431A1 true EP3944431A1 (fr) 2022-01-26

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Cited By (1)

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CN117293619A (zh) * 2023-09-22 2023-12-26 广州新李汽车零部件有限公司 一种用于汽车线束加工的端子压接设备

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CN114512872A (zh) * 2022-03-04 2022-05-17 东莞市锐升电线电缆有限公司 一种排接线剥线打端子设备

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EP0732779A2 (fr) 1995-03-02 1996-09-18 Rennsteig Werkzeuge GmbH Pince pour comprimer des embouts
DE10140270A1 (de) * 2001-08-16 2003-03-06 Wezag Gmbh Presszange zum Einpressen mehrerer Kerben auf dem Umfang eines Kontaktelementes
EP3125382A1 (fr) * 2015-07-31 2017-02-01 Komax SLE GmbH & Co. KG Dispositif de serrage de cables destine a elargir les tresses de blindage de cables
WO2019134834A1 (fr) 2018-01-03 2019-07-11 Glw Gmbh Unité de sertissage

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CN117293619B (zh) * 2023-09-22 2024-03-01 广州新李汽车零部件有限公司 一种用于汽车线束加工的端子压接设备

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AT523722B1 (de) 2021-11-15
AT523722A4 (de) 2021-11-15
US20220029372A1 (en) 2022-01-27

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