EP1383212B1 - Apparatus and method for quality assurance of crimp connections - Google Patents
Apparatus and method for quality assurance of crimp connections Download PDFInfo
- Publication number
- EP1383212B1 EP1383212B1 EP03015348A EP03015348A EP1383212B1 EP 1383212 B1 EP1383212 B1 EP 1383212B1 EP 03015348 A EP03015348 A EP 03015348A EP 03015348 A EP03015348 A EP 03015348A EP 1383212 B1 EP1383212 B1 EP 1383212B1
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- European Patent Office
- Prior art keywords
- crimping
- actual value
- height
- adjustment
- drive
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000275 quality assurance Methods 0.000 title claims abstract description 6
- 238000002788 crimping Methods 0.000 claims abstract description 51
- 238000012937 correction Methods 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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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
- 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
- H01R43/048—Crimping apparatus or processes
- H01R43/0488—Crimping apparatus or processes with crimp height adjusting means
Definitions
- the invention relates to a device for quality assurance of crimp connections crimping devices, with a reciprocable via a drive connecting rod, movable die part and a fixed die part and with a Device for pressing height adjustment, wherein the drive connecting rod with a in it longitudinally displaceable die part and with an adjustment for Fine adjustment of the pressing height (H) is provided, the adjusting drive via a Comparative setpoint / actual control is controlled and for the setpoint / actual control Comparator is provided in which the desired value (X) from the control unit or the Crimpkraftverlauf is stored during the crimping process and wherein a Actual value determiner is provided.
- the electrical line must be from Electrical connection tightly encloses around a good power transmission ensure and also to prevent cavities leading to corroding being able to lead.
- the closing height of the tool in relation to the thickness of Electric line is particularly important here. If the closing height is too high, so the compound may have too low a tensile strength. Is the closing height too low, it can lead to a break of the strands and also in In this case too low a tensile strength. The setting of the right one Crimp height is therefore an important issue in Crimpvorraumen.
- DE 43 37 796 A1 discloses a method for monitoring the quality of crimp connections in which the temporal force profiles of a plurality of Reference measurements are recorded as traces and an averaged trace is formed, to which an upper and a lower spaced curve applied become a tolerance band. At one to be monitored Crimping is checked if the determined from this crimping curve is completely within the surface of the tolerance band. Faulty crimping can be determined by this.
- All the above methods relate to individual crimping processes and their Quality control.
- the affected part becomes displayed as defective and eliminated.
- Disregarded long-term operations in which a total deterioration of the quality can occur without this being detected in individual crimping operations. This is for example the case when the crimping device after a standstill again in operation is taken.
- a device of the aforementioned type is known from EP 0 419 129 A1.
- the Istwertwertermittler is arranged on the machine frame to its to detect operational deformations and to readjust the crimping tool to use. This is not yet possible in a desirable manner.
- the invention is therefore based on the object, a device for To provide quality assurance of crimp connections, with which also long-term operations can be safely detected.
- the actual value of the Control tapped via an attached to the actuator actual value determiners is.
- the actual value of the Crimping force and / or crimp height constantly within predetermined upper and / or lower tolerance masses of the crimping force and / or crimping height and, after reaching a correction measurement value by a plurality of measured actual values, a corrected readjustment of the crimp height performed.
- the Commissioning of a crimping device is at the beginning of production start the machine temperature is approximately constant. However, with time, it warms up the device and there is an expansion of the machine body, which is a Increasing the crimp height and at the same time reducing the crimping force entails.
- correction value a correction measure is given, which is preferred is about half of a tolerance measure. This correction reading is at the same time the mean of the measured actual values of the individual Crimps.
- the heating phase of the crimping device usually find several corrected new settings of crimp height instead. This will be as long as possible carried out until the crimping device has reached its temperature stability and the Set value of the crimp height is maintained within a predetermined minimum range becomes.
- the device is reciprocated with a drive connecting rod movable die part and a fixed die part with a Equipment for pressing height adjustment provided. It is characterized by that the drive connecting rod with a slidable in its longitudinal direction Die part and with a displacement effecting adjustment for Fine adjustment of the pressing height is provided, wherein the adjusting drive via a Comparative target lst control is controlled.
- the actual value of the control is determined by an actual value detector attached to the adjusting drive tapped.
- the setpoint can be at the control unit of Device can be adjusted or even from a calculated Reference size of the Crimpkraftwait be specified.
- the target value of Control is then determined via the force curve during the crimping process.
- a comparator is provided in which the desired value Operating unit or the Crimpkraftverlauf during the crimping process is stored.
- the adjustment consists of a stepper motor and a gearbox.
- the adjusting element itself is a perpendicular to the Direction of movement of the drive connecting rod in a hole located therein inserted eccentric pin.
- the axis of rotation of the eccentric pin is with the Is-Wertermittler connected, which indicates the position value of the eccentric pin transmitted to the comparator.
- the adjustment accuracy of the eccentric pin is 0.002 mm.
- the method is shown schematically, as in the use of the device for Application passes.
- X the target amount of the crimp height H is designated.
- On the time axis Z is this a straight line.
- X1 the lower one Tolerance measure of the crimp height H and with X2 the upper tolerance of the Crimp height H is called.
- the within this tolerance dimensions X1 or X2 produced crimp are qualitatively not too objectionable.
- the production process is divided into phases 1 to 6. In the Phase 1 after commissioning of the crimping device is the Device temperature approximately constant. The actual values of the crimp height H are not drawn here and move in a narrow Tolerance range around the nominal dimension X.
- phase 2 there is a first warming and thus also extension of the device body instead of what a Increasing the crimp height H leads.
- the actual values l of the individual Crimping processes tend to look down on the graph, that is to a higher crimp height H or a lower crimping force.
- the correction reading Y represents an average value several measured actual values 1.
- This correction measured value Y amounts to about half of a tolerance measure, as here the tolerance X2.
- the process for phase 2 can be repeated several times and that until the Crimping device has reached its operating temperature and process stability is given, as this is drawn in phase 6.
- the warming E of Crimping device comprises in the present example, the phases 2 to 5. In the Phase 6, the temperature stability T occurred.
- the entire production process P consequently comprises Phase 1 at approximately constant temperature Crimping, the phases 2 to 5, the area E in which the heating of the Crimping takes place and the phase 6 at the crimp their Operating temperature T and thus has reached its process stability.
- the means for pressing height adjustment is shown as to a device for carrying out the method is used.
- the Device consists essentially of the drive rod 11, the die part 10, the adjusting drive 14 and the comparative nominal-actual control 15.
- the drive connecting rod 11 is driven by the eccentric 30. Of the Eccentric itself gets its drive via the shaft 31.
- the Die part 10 is held in the guide 32 and is in his Longitudinally displaceable.
- the Tool holder 33 attached. On the appearance of the underneath lying second tool part is omitted.
- the pressing height H is the distance between these two tool parts when open Tool.
- the bore 17 is included, in which the adjusting member 12 is inserted.
- the adjusting 12 provides at the same time the connection between the drive rod 11 and the Die part 10.
- the adjusting member 12 is formed as an eccentric pin 18.
- the Adjustment member 12 is connected to the adjusting drive 14, of the Stepper motor 20 is driven. In between that is switched Transmission 21.
- the axis of rotation 22 of the eccentric pin 18th connected to an actual value determiner 23 which determines the position value of the eccentric pin 18 is transmitted to the comparator 24.
- the Comparator 24 is the setpoint value X of the crimp height H from the control panel entered from via line 26.
- the comparator 24 compares the Actual values 1, with the setpoint value X, and outputs corresponding control signals via line 27 to the stepper motor 20.
- the Comparator 24 via the line 28, the actual value 1 of the Crimp force input, so that the crimp force for the regulation of the institution can be used.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Qualitätssicherung von Crimpverbindungen an Crimpvorrichtungen , mit einem über ein Antriebspleuel hin- und herversetzbaren, beweglichen Gesenkteil und einem feststehenden Gesenkteil und mit einer Einrichtung zur Presshöhenverstellung, wobei der Antriebspleuel mit einem daran in seiner Längsrichtung verschiebbaren Gesenkteil und mit einem Verstellantrieb zur Feineinstellung der Presshöhe (H) versehen ist, wobei der Verstellantrieb über eine vergleichende Soll-/Ist-Regelung gesteuert ist und für die Soll-/Ist-Regelung ein Komparator vorgesehen ist, in dem der Soll-Wert (X) aus der Bedieneinheit oder dem Crimpkraftverlauf während des Crimpprozesses gespeichert ist und wobei ein Ist-Wertermittler vorgesehen ist. The invention relates to a device for quality assurance of crimp connections crimping devices, with a reciprocable via a drive connecting rod, movable die part and a fixed die part and with a Device for pressing height adjustment, wherein the drive connecting rod with a in it longitudinally displaceable die part and with an adjustment for Fine adjustment of the pressing height (H) is provided, the adjusting drive via a Comparative setpoint / actual control is controlled and for the setpoint / actual control Comparator is provided in which the desired value (X) from the control unit or the Crimpkraftverlauf is stored during the crimping process and wherein a Actual value determiner is provided.
Bei der serienmäßigen Herstellung von Crimpverbindungen kommt der Qualitätssicherung eine hohe Bedeutung zu. Die elektrische Leitung muss vom elektrischen Anschluss dicht umfasst werden um eine gute Stromübertragung sicherzustellen und auch um Hohlräume zu verhindern, die zu Korrodierungen führen können. Die Schließhöhe des Werkzeuges in Relation zur Dicke der elektrischen Leitung ist hierbei besonders wichtig. Ist die Schließhöhe zu hoch, so kann die Verbindung eine zu niedrige Zugfestigkeit haben. Ist die Schließhöhe zu niedrig, so kann es zu einem Abbrechen der Litzen kommen und auch in diesem Fall zu einer zu geringen Zugfestigkeit. Die Einstellung der richtigen Crimphöhe ist deshalb ein wichtiges Thema bei Crimpvorrichtungen.In the standard production of crimp connections comes the quality assurance a high importance too. The electrical line must be from Electrical connection tightly encloses around a good power transmission ensure and also to prevent cavities leading to corroding being able to lead. The closing height of the tool in relation to the thickness of Electric line is particularly important here. If the closing height is too high, so the compound may have too low a tensile strength. Is the closing height too low, it can lead to a break of the strands and also in In this case too low a tensile strength. The setting of the right one Crimp height is therefore an important issue in Crimpvorrichtungen.
In der DE 43 37 796 A1 ist ein Verfahren zum Überwachen der Qualität von Crimpverbindungen angegeben, bei dem die zeitlichen Kraftverläufe einer Mehrzahl von Referenzmessungen als Messkurven erfasst werden und eine gemittelte Messkurve gebildet wird, an welche eine obere und eine untere beabstandete Kurve angelegt werden, so dass daraus ein Toleranzband entsteht. Bei einem zu überwachenden Crimpvorgang wird geprüft, ob die aus diesem Crimpvorgang ermittelte Messkurve völlig innerhalb der Fläche des Toleranzbandes liegt. Fehlerhafte Crimpvorgänge können hierdurch ermittelt werden.DE 43 37 796 A1 discloses a method for monitoring the quality of crimp connections in which the temporal force profiles of a plurality of Reference measurements are recorded as traces and an averaged trace is formed, to which an upper and a lower spaced curve applied become a tolerance band. At one to be monitored Crimping is checked if the determined from this crimping curve is completely within the surface of the tolerance band. Faulty crimping can be determined by this.
In der DE 198 43 156 A1 wird ein Verfahren behandelt, bei dem Messdaten, die aus einer bei dem Crimpvorgang gemessenen Kraft-Weg-Kennlinie erhalten werden, mit gespeicherten Soll-Daten verglichen werden. Bei einer Abweichung der Kraft-Weg-Kennlinie von der Soll-Linie erfolgt eine Fehleranzeige. Bei diesem Verfahren wird für jedes Werkzeug während des Crimpens die Kraft-Weg-Kennlinie der Werkzeugteile aufgenommen und als Soll-Kennlinie der Crimpvorrichtung gespeichert. Bei einem erneuten Einsatz dieses Werkzeuges wird ein erster Crimpvorgang ausgeführt und dabei kann sofort festgestellt werden, ob dieser Crimpvorgang mit den Soll-Daten übereinstimmt oder nicht. Hierzu wird die Kraft-Weg-Kurve herangezogen.In DE 198 43 156 A1, a method is treated in which measurement data, the obtained from a measured during the crimping force-displacement curve be compared with stored target data. In case of a deviation the force-displacement curve from the target line is an error message. In this Method is the force-displacement curve for each tool during crimping taken the tool parts and as a desired characteristic of the crimping saved. When re-using this tool is a first crimping executed while it can be determined immediately whether this crimping coincides with the target data or not. For this purpose, the Force-displacement curve used.
Aus der DE 691 24 421 T2 ist letztlich ein Verfahren oder eine Vorrichtung für die Einstellung der Crimphöhe bekannt geworden, bei dem in Abhängigkeit von der Crimpkraft ein automatisches Einstellen der Crimphöhe erfolgt. Die während eines Crimpvorganges auftretende Crimpkraft wird mit optimalen Werten verglichen und bei Abweichungen davon, erfolgt eine Crimphöhen-Feineinstellung.From DE 691 24 421 T2 is ultimately a method or an apparatus for the Setting the crimp height became known, in which, depending on the Crimping force automatically adjusting the crimp height is done. The during a Crimping occurring crimping force is compared with optimal values and in case of deviations, a crimp height fine adjustment takes place.
Alle genannten Verfahren beziehen sich auf einzelne Crimpvorgänge und deren Qualitätssicherung. Bei einem fehlerhaften Crimpvorgang wird das betroffene Teil als fehlerhaft angezeigt und ausgeschieden. Unberücksichtigt bleiben Langzeitvorgänge, bei welchen insgesamt eine Verschlechterung der Qualität eintreten kann ohne dass dies bei einzelnen Crimpvorgängen erkannt wird. Dieses ist beispielsweise der Fall, wenn die Crimpvorrichtung nach einem Stillstand wieder in Betrieb genommen wird.All the above methods relate to individual crimping processes and their Quality control. In case of a faulty crimping process, the affected part becomes displayed as defective and eliminated. Disregarded long-term operations, in which a total deterioration of the quality can occur without this being detected in individual crimping operations. This is for example the case when the crimping device after a standstill again in operation is taken.
Eine Vorrichtung der eingangs genannten Art ist aus der EP 0 419 129 A1 bekannt. Der Istwertwertermittler ist dabei am Maschinengestell angeordnet, um dessen betriebsbedingte Verformungen zu erfassen und zur Nachjustierung des Crimpwerkzeuges zu verwenden. Dies gelingt noch nicht in wünschenswerter Weise.A device of the aforementioned type is known from EP 0 419 129 A1. The Istwertwertermittler is arranged on the machine frame to its to detect operational deformations and to readjust the crimping tool to use. This is not yet possible in a desirable manner.
Der Erfindung liegt deshalb die Aufgabe zu Grunde, eine Vorrichtung zur Qualitätssicherung von Crimpverbindungen zu schaffen, mit der auch Langzeitvorgänge sicher erfasst werden können. The invention is therefore based on the object, a device for To provide quality assurance of crimp connections, with which also long-term operations can be safely detected.
Die Lösung der gestellten Aufgabe erfolgt erfindungsgemäß mit den Merkmalen von Patentanspruch 1. Die Unteransprüche stellen vorteilhafte Weiterbildungen des Erfindungsgedankens dar.The solution of the task is carried out according to the invention with the features of claim 1. The dependent claims provide advantageous developments of the inventive idea.
Bei der erfindungsgemäßen Vorrichtung ist es vorgesehen, dass der Ist-Wert der Regelung über einen am Verstellantrieb angebrachten Ist-Wertermittler abgegriffen ist.In the device according to the invention, it is provided that the actual value of the Control tapped via an attached to the actuator actual value determiners is.
Ausgehend von einem ermittelten Soll-Maß der Crimpkraft und/oder Crimphöhe für ein bestimmtes Werkzeug, wird während der Crimpvorgänge der Ist-Wert der Crimpkraft und/oder Crimphöhe ständig innerhalb von vorgegebenen oberen und/oder unteren Toleranzmassen der Crimpkraft und/oder Crimphöhe gemessen und, nach Erreichen eines Korrekturmesswertes durch mehrere gemessene Ist-Werte, eine korrigierte Neueinstellung der Crimphöhe durchgeführt. Bei der Inbetriebnahme einer Crimpvorrichtung ist bei Beginn der Produktionsaufnahme die Maschinentemperatur annähernd konstant. Mit der Zeit erwärmt sich jedoch die Vorrichtung und es erfolgt eine Ausdehnung des Maschinenkörpers, was eine Vergrößerung der Crimphöhe und gleichzeitig eine Verringerung der Crimpkraft zur Folge hat. Dieses führt mit der Zeit dazu, dass eine Abweichung vom Soll-Wert der Crimphöhe eintritt. Sobald diese Abweichung ein errechnetes Korrekturmaß erreicht, welches noch deutlich innerhalb des oberen Toleranzmaße der Crimphöhe beziehungsweise unteren Toleranzgrenze der Crimpkraft liegt, erfolgt eine korrigierte Neueinstellung der Crimphöhe. Dieses wird durch entsprechende Einrichtungen an der Crimpvorrichtung durchgeführt.Starting from a determined desired degree of crimping force and / or crimping height for a particular tool, during the crimping process, the actual value of the Crimping force and / or crimp height constantly within predetermined upper and / or lower tolerance masses of the crimping force and / or crimping height and, after reaching a correction measurement value by a plurality of measured actual values, a corrected readjustment of the crimp height performed. In the Commissioning of a crimping device is at the beginning of production start the machine temperature is approximately constant. However, with time, it warms up the device and there is an expansion of the machine body, which is a Increasing the crimp height and at the same time reducing the crimping force entails. This leads over time to a deviation from the target value the crimp height occurs. Once this deviation is a calculated correction measure reached, which still clearly within the upper tolerance of the crimp height or lower tolerance limit of the crimping force, there is a corrected readjustment of the crimp height. This is by appropriate Facilities performed on the crimping device.
Als Korrekturmesswert wird ein Korrekturmaß vorgegeben, welches bevorzugt etwa der Hälfte eines Toleranzmaßes beträgt. Dieser Korrekturmesswert ist gleichzeitig der Mittelwert der gemessenen Ist-Werte der einzelnen Crimpvorgänge. As correction value, a correction measure is given, which is preferred is about half of a tolerance measure. This correction reading is at the same time the mean of the measured actual values of the individual Crimps.
Während der Erwärmungsphase der Crimpvorrichtung finden in der Regel mehrere korrigierte Neueinstellungen der Crimphöhe statt. Dieses wird solange durchgeführt bis die Crimpvorrichtung ihre Temperaturstabilität erreicht hat und der Soll-Wert der Crimphöhe in einem vorgegebenen minimalen Bereich eingehalten wird.During the heating phase of the crimping device usually find several corrected new settings of crimp height instead. This will be as long as possible carried out until the crimping device has reached its temperature stability and the Set value of the crimp height is maintained within a predetermined minimum range becomes.
Die Vorrichtung ist mit einem über einen Antriebspleuel hin- und herversetzten beweglichen Gesenkteil und einem feststehenden Gesenkteil mit einer Einrichtung zur Presshöheneinstellung versehen. Sie zeichnet sich dadurch aus, dass der Antriebspleuel mit einem daran in seiner Längsrichtung verschiebbaren Gesenkteil und mit einem die Verschiebung bewirkenden Verstellantrieb zur Feineinstellung der Presshöhe versehen ist, wobei der Verstellantrieb über eine vergleichende Soll-lst-Regelung gesteuert wird.The device is reciprocated with a drive connecting rod movable die part and a fixed die part with a Equipment for pressing height adjustment provided. It is characterized by that the drive connecting rod with a slidable in its longitudinal direction Die part and with a displacement effecting adjustment for Fine adjustment of the pressing height is provided, wherein the adjusting drive via a Comparative target lst control is controlled.
Der Ist-Wert der Regelung wird über einen am Verstellantrieb angebrachten Ist-Wertermittler abgegriffen. Der Soll-Wert kann an der Bedieneinheit der Vorrichtung eingestellt werden oder aber auch von einer errechneten Referenzgröße von der Crimpkraftmessung vorgegeben werden. Der Soll-Wert der Regelung wird dann über den Kraftverlauf während der Crimpprozesses ermittelt.The actual value of the control is determined by an actual value detector attached to the adjusting drive tapped. The setpoint can be at the control unit of Device can be adjusted or even from a calculated Reference size of the Crimpkraftmessung be specified. The target value of Control is then determined via the force curve during the crimping process.
Für die Soll-Ist-Regelung ist ein Komparator vorgesehen, in dem der Soll-Wert aus Bedieneinheit oder dem Crimpkraftverlauf während des Crimpprozesses gespeichert wird.For the desired-actual control, a comparator is provided in which the desired value Operating unit or the Crimpkraftverlauf during the crimping process is stored.
In günstiger Weise besteht der Verstellantrieb aus einem Schrittmotor und einem Getriebe. Das Verstellglied selbst ist ein senkrecht zur Bewegungsrichtung des Antriebspleuels in eine darin befindliche Bohrung eingesetzter Exzenterbolzen. Die Drehachse des Exzenterbolzen ist mit dem Ist-Wertermittler verbunden, welcher den Positionswert des Exzenterbolzens an den Komparator übermittelt. Die Verstellgenauigkeit des Exzenterbolzens beträgt 0,002 mm.Conveniently, the adjustment consists of a stepper motor and a gearbox. The adjusting element itself is a perpendicular to the Direction of movement of the drive connecting rod in a hole located therein inserted eccentric pin. The axis of rotation of the eccentric pin is with the Is-Wertermittler connected, which indicates the position value of the eccentric pin transmitted to the comparator. The adjustment accuracy of the eccentric pin is 0.002 mm.
Der Ist-Wert des Crimpkraftverlaufs wird während des gesamten Crimpprozesses gemessen und mit dem in dem Komparator vorgegebenen Soll-Wert des Crimpkraftverlaufs verglichen. Bei Abweichungen zwischen dem Ist- und dem Soll-Wert erfolgt eine Korrektur des Crimpkraftverlaufs zum Soll-Wert, indem die Presshöhe verändert wird.The actual value of the Crimpkraftverlaufs during the entire crimping process measured and with the predetermined value in the comparator of the Crimp force compared. In case of deviations between the actual and the set value a correction of the Crimpkraftverlaufs to the desired value by the Pressing height is changed.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird die Erfindung nachstehend näher erläutert.Reference to an embodiment shown in the drawing, the Invention explained in more detail below.
Es zeigt:
- Figur 1
- schematisch den Produktionsablauf mit einer Regelung durch die Presshöhen-Feineinstellung und
Figur 2- die Vorrichtung mit einer Einrichtung zur Feineinstellung der Presshöhe.
- FIG. 1
- schematically the production process with a control by the press height fine adjustment and
- FIG. 2
- the device with a device for fine adjustment of the pressing height.
In der Figur 1 ist das Verfahren schematisch dargestellt, wie es bei der Verwendung der Vorrichtung zur
Anwendung gelangt. Mit X ist das Soll-Maß der Crimphöhe H bezeichnet. Auf
der Zeitachse Z ist dieses eine gerade Linie. Mit X1 ist das untere
Toleranzmaß der Crimphöhe H und mit X2 das obere Toleranzmaß der
Crimphöhe H bezeichnet. Die innerhalb dieser Toleranzmaße X1
beziehungsweise X2 hergestellten Crimpverbindungen sind qualitativ nicht zu
beanstanden. Der Produktionsablauf ist in die Phasen 1 bis 6 unterteilt. In der
Phase 1 nach Inbetriebnahme der Crimpvorrichtung ist die
Vorrichtungstemperatur annähernd konstant. Die Ist-Werte der Crimphöhe H
sind hier nicht näher eingezeichnet und bewegen sich in einem engen
Toleranzbereich um das Soll-Maß X. In der Phase 2 findet eine erste Erwärmung
und damit auch Ausdehnung des Vorrichtungskörpers statt, was zu einer
Vergrößerung der Crimphöhe H führt. Die Ist-Werte l der einzelnen
Crimpvorgänge tendieren auf dem Diagramm gesehen nach unten, das heißt
zu einer höheren Crimphöhe H beziehungsweise einer niedrigeren Crimpkraft.In the figure 1, the method is shown schematically, as in the use of the device for
Application passes. With X, the target amount of the crimp height H is designated. On
the time axis Z is this a straight line. With X1, the lower one
Tolerance measure of the crimp height H and with X2 the upper tolerance of the
Crimp height H is called. The within this tolerance dimensions X1
or X2 produced crimp are qualitatively not too
objectionable. The production process is divided into phases 1 to 6. In the
Phase 1 after commissioning of the crimping device is the
Device temperature approximately constant. The actual values of the crimp height H
are not drawn here and move in a narrow
Tolerance range around the nominal dimension X. In
Wenn diese Ist-Werte 1 den vorgegebenen Korrekturwert Y erreichen, findet
eine Neueinstellung der Crimphöhe H statt, in dem die Crimphöhe H verringert
wird, das heißt, die einzelnen Crimpvorgänge wieder auf das Niveau des Soll-Maßes
X gebracht werden. Der Korrekturmesswert Y stellt einen Mittelwert aus
mehreren gemessenen Ist-Werten 1 dar. Dieser Korrekturmesswert Y beträgt
etwa die Hälfte eines Toleranzmaßes, wie hier das Toleranzmaß X2. Dieser
Vorgang für die Phase 2 kann sich mehrfach wiederholen und zwar solange bis die
Crimpvorrichtung ihre Betriebstemperatur erreicht hat und eine Prozessstabilität
gegeben ist, wie dieses bei der Phase 6 eingezeichnet ist. Die Erwärmung E der
Crimpvorrichtung umfasst im vorliegenden Beispiel die Phasen 2 bis 5. In der
Phase 6 ist die Temperaturstabilität T eingetreten. Der gesamte Produktionsablauf
P umfasst folglich die Phase 1 mit etwa konstanter Temperatur der
Crimpvorrichtung, die Phasen 2 bis 5 den Bereich E in dem die Erwärmung der
Crimpvorrichtung sich vollzieht und die Phase 6 bei der die Crimpvorrichtung ihre
Betriebstemperatur T und damit ihre Prozessstabilität erreicht hat.When these actual values 1 reach the predetermined correction value Y, finds
a readjustment of the crimp height H instead, in which the crimp height H decreases
is, that is, the individual crimping operations back to the level of the target dimension
X be brought. The correction reading Y represents an average value
several measured actual values 1. This correction measured value Y amounts to
about half of a tolerance measure, as here the tolerance X2. This
The process for
In der Figur 2 ist die Einrichtung zur Presshöheneinstellung gezeigt, wie sie an
einer Vorrichtung zur Durchführung des Verfahrens zum Einsatz kommt. Die
Einrichtung besteht im Wesentlichen aus dem Antriebspleuel 11, dem Gesenkteil
10, dem Verstellantrieb 14 und der vergleichenden Soll-Ist-Regelung
15. Der Antriebspleuel 11 wird von dem Exzenter 30 angetrieben. Der
Exzenter selbst erhält seinen Antrieb über die Welle 31. Das
Gesenkteil 10 wird in der Führung 32 gehalten und ist in seiner
Längsrichtung verschiebbar. Am Gesenkteil 10 ist die
Werkzeugaufnahme 33 angebracht. Auf die Darstellung des darunter
liegenden zweiten Werkzeugteils wird verzichtet. Die Presshöhe H ist
der Abstand zwischen diesen beiden Werkzeugteilen bei geöffnetem
Werkzeug. In dem Antriebspleuel 11 ist die Bohrung 17 enthalten, in
welcher das Verstellglied 12 eingesetzt ist. Das Verstellglied 12 stellt
gleichzeitig die Verbindung zwischen dem Antriebspleuel 11 und dem
Gesenkteil 10 dar. Im Bereich der Bohrung 17 des Antriebspleuels 11,
ist das Verstellglied 12 als Exzenterbolzen 18 ausgebildet. Das
Verstellglied 12 ist mit dem Verstellantrieb 14 verbunden, der von dem
Schrittmotor 20 angetrieben ist. Dazwischen geschaltet ist das
Getriebe 21. Außerdem ist die Drehachse 22 des Exzenterbolzens 18
mit einem Ist-Wertermittler 23 verbunden, welcher den Positionswert
des Exzenterbolzens 18 an den Komparator 24 übermittelt. In den
Komparator 24 ist der Soll-Wert X der Crimphöhe H vom Bedienpult
aus über die Leitung 26 eingegeben. Der Komparator 24 vergleicht die
Ist-Werte 1, mit dem Soll-Wert X und gibt entsprechende Regelsignale
über die Leitung 27 an den Schrittmotor 20. Gleichzeitig wird den
Komparator 24 über die Leitung 28 der Ist-Wert 1 von der
Crimpkraftüberwachung eingegeben, so dass auch die Crimpkraft für
die Regelung der Einrichtung herangezogen werden kann.In Figure 2, the means for pressing height adjustment is shown as to
a device for carrying out the method is used. The
Device consists essentially of the
Claims (5)
- A crimping apparatus having an apparatus for the quality assurance of crimp connections, comprising a movable die part which can be moved back and forth by a drive crank, and a stationary die part, and comprising a device for adjusting the press height, the drive crank (11) being provided with a die part (10) that can be adjusted thereon in its longitudinal direction and with an adjustment drive (14) for the fine adjustment of the press height (H), the adjustment drive (14) being controlled by a comparing set point/actual value control system and a comparator (24) being provided for the set point/actual value control system (15), in which comparator the set point (X) from the operating unit or from the curve of the crimping force during the crimping process is stored and an actual value transmitter being provided, characterized in that the actual value of the control system (15) is tapped off by an actual value transmitter fitted to the adjustment drive (14).
- A crimping apparatus according to claim 1, characterized in that the adjustment drive (14) comprises a stepping motor (20) and a gearbox (21).
- A crimping apparatus according to either of claims 1 and 2, characterized in that the adjusting element (12) is an eccentric pin (18) inserted into a hole (17) in the drive crank (11), at right angles to the direction of movement (16) of the latter.
- A crimping apparatus according to any one of claims 1 to 3, characterized in that the axis of rotation (22) of the eccentric pin (18) is connected to the actual value transmitter (23) of the control system, which transmits the position value of the eccentric pin (18) to the comparator (24).
- A crimping apparatus according to any one of claims 1 to 4, characterized in that the adjustment accuracy of the eccentric pin (18) is 0.002 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10232470 | 2002-07-17 | ||
| DE10232470A DE10232470A1 (en) | 2002-07-17 | 2002-07-17 | Method and device for quality assurance of crimp connections |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1383212A1 EP1383212A1 (en) | 2004-01-21 |
| EP1383212B1 true EP1383212B1 (en) | 2005-10-05 |
Family
ID=27798315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03015348A Expired - Lifetime EP1383212B1 (en) | 2002-07-17 | 2003-07-08 | Apparatus and method for quality assurance of crimp connections |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US20040055354A1 (en) |
| EP (1) | EP1383212B1 (en) |
| AT (1) | ATE306132T1 (en) |
| DE (2) | DE10232470A1 (en) |
| ES (1) | ES2249660T3 (en) |
| NO (1) | NO20033215D0 (en) |
| PL (1) | PL361294A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372195C (en) * | 2005-07-13 | 2008-02-27 | 南京埃斯顿数字技术有限公司 | Universal pressure monitoring system for terminal press |
| DE102006014521A1 (en) | 2006-03-29 | 2008-10-09 | Schäfer Werkzeug- und Sondermaschinenbau GmbH | crimping |
| DE102006032363B3 (en) * | 2006-07-13 | 2007-12-06 | Schäfer Werkzeug- und Sondermaschinenbau GmbH | Device for crimping a contact element on a wire comprises a blocking unit for suppressing the relative shifting of tool halves in relation to the connecting link |
| US8671551B2 (en) * | 2011-02-01 | 2014-03-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Process for nondestructive evaluation of the quality of a crimped wire connector |
| US9003645B1 (en) | 2013-01-17 | 2015-04-14 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Ultrasonic device for assessing the quality of a wire crimp |
| DE102013211045A1 (en) * | 2013-06-13 | 2014-12-18 | Otto Bihler Handels-Beteiligungs-Gmbh | Forming method with control of a geometric property of a workpiece and device thereto |
| US10153606B2 (en) | 2014-10-10 | 2018-12-11 | The United States Of America As Represented By The Administrator Of Nasa | Method to control crimping processes using ultrasonic transmission analysis |
| DE102019101016A1 (en) * | 2019-01-16 | 2020-07-16 | Harting Electric Gmbh & Co. Kg | Method and device for checking the quality of a crimp |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2411340A1 (en) * | 1974-03-09 | 1975-09-18 | Hasenclever Gmbh Maschf | FORGING PRESS |
| US4025999A (en) * | 1976-02-18 | 1977-05-31 | Joseph Wolyn | Adjustable crimp die assembly |
| DE3174871D1 (en) * | 1981-03-31 | 1986-07-31 | Matsushita Electric Ind Co Ltd | Iron core laminate manufacturing apparatus |
| JPS6031092U (en) * | 1983-08-09 | 1985-03-02 | シ−ケ−デイ株式会社 | terminal crimping machine |
| DE3541258C1 (en) * | 1985-11-22 | 1987-01-15 | Hahn Ortwin | Adaptive control process for foaming and sintering plastic |
| US4857725A (en) * | 1988-07-06 | 1989-08-15 | Santa Barbara Research Center | Differential offset corrected current mirror |
| FR2635285B1 (en) * | 1988-08-12 | 1990-11-23 | Ricard Claude | METHODS AND DEVICES FOR MECHANICALLY CRIMPING TERMINALS ON CONDUCTIVE WIRES AND FOR PRECISION ADJUSTING THE CRIMPING HEIGHT |
| US4856186A (en) * | 1988-11-04 | 1989-08-15 | Amp Incorporated | Apparatus and method for determination of crimp height |
| DE3842009C1 (en) * | 1988-11-22 | 1990-03-22 | Kabelwerke Reinshagen Gmbh, 5600 Wuppertal, De | |
| US4916810A (en) * | 1989-05-12 | 1990-04-17 | Amp Incorporated | Method and apparatus for terminating wires to terminals |
| DE4014221A1 (en) * | 1989-05-12 | 1990-11-15 | Siemens Ag | Production monitoring of crimped electrical connectors - using built in strain gauge to measure load as indication of crimping quality |
| JPH0759333B2 (en) * | 1989-09-22 | 1995-06-28 | モレックス インコーポレーテッド | Crimping press and method for managing wear of a crimping tool |
| GB8927467D0 (en) * | 1989-12-05 | 1990-02-07 | Amp Gmbh | Crimped connection quality control |
| GB9012058D0 (en) * | 1990-05-30 | 1990-07-18 | Amp Gmbh | Method of,and apparatus for,controlling the crimp height of crimped electrical connections |
| GB9012073D0 (en) * | 1990-05-30 | 1990-07-18 | Amp Gmbh | Electrical terminal applicator and a crimp height adjustment plate therefor |
| US5275032A (en) * | 1990-05-30 | 1994-01-04 | The Whitaker Corporation | Method and apparatus for controlling the crimp height of crimped electrical connections |
| GB2275881B (en) * | 1990-10-17 | 1995-01-18 | Towa Corp | Method of adjusting setting position of reciprocating sliding member and press using such apparatus |
| US5491994A (en) * | 1991-12-11 | 1996-02-20 | Diamond Die & Mold Company | Crimp height monitor |
| US5414926A (en) * | 1992-10-09 | 1995-05-16 | Sumitomo Wiring Systems, Ltd. | Terminal crimping apparatus |
| EP0622873A3 (en) * | 1993-04-26 | 1996-03-27 | Whitaker Corp | RAM drive mechanism. |
| US5443549A (en) * | 1993-06-15 | 1995-08-22 | Yazaki Corporation | Terminal crimping machine |
| EP0643457B1 (en) * | 1993-09-14 | 1997-06-11 | Molex Incorporated | Electrical terminal applicator with improved crimp height adjustment plate means |
| DE4337796A1 (en) * | 1993-11-05 | 1995-05-11 | Abstron Electronics Gmbh | Method for monitoring the quality of crimped joints |
| US5697146A (en) * | 1994-12-28 | 1997-12-16 | Yazaki Corporation | Apparatus for crimping terminal to electrical wire |
| CH693550A5 (en) * | 1997-06-30 | 2003-09-30 | Komax Holding Ag | Crimping device and method for its operation. |
| DE19843156A1 (en) * | 1998-09-21 | 2000-04-20 | Sle Electronic Gmbh | Process for quality assurance of crimp connections produced in a crimping device, as well as crimping tool and crimping device |
-
2002
- 2002-07-17 DE DE10232470A patent/DE10232470A1/en not_active Withdrawn
-
2003
- 2003-07-08 EP EP03015348A patent/EP1383212B1/en not_active Expired - Lifetime
- 2003-07-08 DE DE50301290T patent/DE50301290D1/en not_active Expired - Lifetime
- 2003-07-08 AT AT03015348T patent/ATE306132T1/en not_active IP Right Cessation
- 2003-07-08 ES ES03015348T patent/ES2249660T3/en not_active Expired - Lifetime
- 2003-07-16 PL PL03361294A patent/PL361294A1/en unknown
- 2003-07-16 NO NO20033215A patent/NO20033215D0/en not_active Application Discontinuation
- 2003-07-17 US US10/621,553 patent/US20040055354A1/en not_active Abandoned
-
2006
- 2006-05-01 US US11/416,022 patent/US20060198915A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20060198915A1 (en) | 2006-09-07 |
| EP1383212A1 (en) | 2004-01-21 |
| NO20033215D0 (en) | 2003-07-16 |
| DE10232470A1 (en) | 2004-02-05 |
| PL361294A1 (en) | 2004-01-26 |
| ATE306132T1 (en) | 2005-10-15 |
| ES2249660T3 (en) | 2006-04-01 |
| US20040055354A1 (en) | 2004-03-25 |
| DE50301290D1 (en) | 2005-11-10 |
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