EP1634352B1 - Crimping pliers - Google Patents
Crimping pliers Download PDFInfo
- Publication number
- EP1634352B1 EP1634352B1 EP04790977A EP04790977A EP1634352B1 EP 1634352 B1 EP1634352 B1 EP 1634352B1 EP 04790977 A EP04790977 A EP 04790977A EP 04790977 A EP04790977 A EP 04790977A EP 1634352 B1 EP1634352 B1 EP 1634352B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crimping
- motor
- crimping tool
- actuator
- deformation
- 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.)
- Not-in-force
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/146—Clip clamping hand tools
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/042—Hand tools for crimping
- H01R43/0428—Power-driven hand crimping tools
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- 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
Definitions
- the invention relates to a motor-driven crimping tool comprising a support column on which two crimping tools are mounted, one of which is fixed and the other in a guide of the support column is displaceable, a signal-actuated motor with a motor housing which is rigidly secured to the support column and an actuator encloses that is connected to the displaceable crimping tool and a controller for operating the motor.
- Such a crimping tool is known. It is used in the connection of electrically conductive cables of a diameter of several millimeters and is operated by a pressurized with compressed air piston / cylinder unit. This has a comparatively large effective diameter in order to generate the forces required for a crimping process using the working pressures of 6 or 12 bar available in customary compressed air networks. Accordingly, the crimping tool is cumbersome to use and, in particular, less suitable for use in difficult to access places.
- a motor-driven crimping tool with a receptacle for a composite of two pressing jaws crimping tool.
- the crimping tool includes a signal actuable motor having a motor housing rigidly secured to the receptacle and enclosing an actuator connected to the crimping tool and a controller for actuating the motor.
- the motor is an electric motor with a rotor rotating about an axis.
- a deformation or pressure sensor is provided, which is adapted to detect the resulting during the crimping mechanical deformation of the actuator and transforms into a signal that corresponds to the size of the deformation proportional.
- the deformation sensor is signal conductively connected to the controller of the motor and causes a return of the displaceable crimping tool to its original position upon the occurrence of a signal which exceeds an arbitrarily adjustable value.
- a motor-driven crimping tool is known with a support column on which two crimping tools are mounted, one of which is fixed and the other in a guide of the support column is displaceable.
- the actuator for moving the movable crimping jaw is formed by a threaded spindle cooperating with a threaded nut.
- the invention has for its object to further develop a crimping tool of the type mentioned that results in a reduced size. This object is achieved with a crimping tool of the type mentioned with the features of claim 1.
- the dependent claims relate.
- the crimping tool comprises a support column on which two crimping tools are mounted, one of which is fixed and the other is displaceable in a guide of the support column, a signal-actuated motor with a motor housing which is rigidly fixed to the support column, and a transmission housing including an actuator connected to the slidable crimping tool and a controller for actuating the motor, the motor being an electric motor having a rotor rotating about an axis, wherein at least one crimping tool and / or the actuator provide a strain sensor on the tag column is suitable for detecting the resulting during the crimping, mechanical deformation of the support column, at least one crimping tool and / or the actuator is suitable and transforms into a signal that corresponds to the size of the deformation proportional and wherein the deformation sensor with the control of the motor signal conductively connected is and one Returning the slidable crimping tool to its original position causes a signal to reach or exceed an arbitrarily adjustable value when
- Electric motors with a rotor rotating about an axis are characterized by an excellent robustness and have a correspondingly long longevity.
- the conversion of the fast rotational movement in a slow forward movement of the displaceable crimping tool of a crimping tool always requires the use of a transmission with an extremely high transmission ratio and a correspondingly large switch-off inertia.
- the size of the crimping tool according to the invention is significantly reduced compared to the known design. As a result, it can easily be used in tight places, for example at assembly sites located inside motor vehicles.
- the actuator has a cooperating between the rotor and the movable crimping tool with a threaded rod threaded rod.
- a gear housing is provided, in which the threaded rod axially immovable and rotatable and the threaded nut is axially displaceable and non-rotatably received.
- the threaded rod is expediently supported on at least one ball bearing. It is therefore particularly easy to rotate and therefore requires only low driving forces. The engine can be reduced accordingly in terms of its size.
- the deformation sensor on the support column is used, it has proven to be advantageous if it is positioned between the fixed crimping tool and the attachment point of the motor housing.
- the attachment to the support column can be carried out in an elongated design by means of spaced in the direction of the force introduction direction machine screws. Any elastic deformations of the support column are transmitted directly to the sensor and converted into a signal that is proportional to the size of the deformation. It can therefore be evaluated and used to control the motor to obtain error-free crimping and avoid damage caused by overload. Since the signal directly controls the motor in the embodiment according to the invention, bypassing the gear reduction, the achievement of both objectives is assured to an excellent degree.
- the deformation sensor is formed by an electrical tension and / or pressure sensor.
- the resulting during the intended use deformations can be characterized excellent and capture directly.
- a motor-driven crimping tool is shown in longitudinal or cross-sectional view, comprising a support column 1, on which two crimping tools 2, 3 are mounted, one of which 2.fest and the other 3 in a guide the support column 1 is displaceable, a signal-actuatable motor 5 with a motor housing 6 which is rigidly secured to the support column 1, and an actuator 7 which is connected to the displaceable crimping tool 3, and a controller for actuating the motor 5.
- the motor fifth consists of an electric motor with a rotor rotating about an axis. This is connected by a belt drive 12 with the actuator 7, which is formed by a threaded spindle which is supported by ball bearings on a gear housing 9.
- the gear housing 9 comprises in the lower part of a guide of hexagonal profile, as seen in Figure 2.
- the actuator 7.1 is mounted, which is designed in the manner of a threaded nut and carries the displaceable crimping tool 3 at the lower end of the drawing.
- the displaceable crimping tool 3 opposite lying at the lower end of the support column 1 is a festgelagertes, further crimping tool 2 is provided.
- Deformation sensors 8 may be exclusively, alternatively or cumulatively provided on the support column 1, at least one crimping tool 2, 3 and / or the actuator 7, 7.1. In most cases, the use of a single sensor is sufficient. This can be attached particularly advantageous to the support column 1 and replace easily in case of damage.
- the control needed to operate the illustrated crimping tool is not shown in the drawing. It is generally integrated into the motor housing 6 and is protected at this point to a particularly good extent from mechanical damage.
- a key switch is generally provided. This causes via the not shown in the drawings control a rotation of the rotor contained in the electric motor.
- the rotation is transmitted through the belt drive 12 to the trained as a threaded spindle actuator 7, which is in engagement with the internal thread of the designed like a threaded nut actuator 7.1.
- This is prevented by a hexagonal guide of the gear housing 9 from following the rotational movement of the actuator 7, while the latter supported on ball bearings in the axial direction on both sides in the gear housing 9 and thereby to an axially directed Evasive movement is prevented.
- the control which is not reproduced in the drawing, causes a reversal of the motor in the opposite direction of rotation and thus an immediate return of the movable crimping tool to its starting position. A plastic deformation or even damage to the crimping tool is thereby reliably avoided.
- the actuation of the pressure switch triggers a downward relative bearing of the displaceable crimping tool, which, however, causes the implementation of a crimping process.
- the wire ends to be connected are jointly enclosed by a crimp, which normally consists of metallic material and is plastically deformed such that the two wire ends are subsequently connected inseparably by the crimp. The necessary forces are considerable. They are enlarged until sufficient, plastic deformation of the crimp has occurred.
- the value in this regard differs depending on the size of the crimp and can be determined very easily in the experiment. He will achieved, then at least one of the sensors 8 triggers a reversal of the motor 5 and a return of the displaceable crimping tool to its original position. Thus, the required, firm connection of the two wire or cable ends is achieved at each subsequent crimping, without causing damage to the crimping tool. Also, use in the connection of other, columnar body is possible.
- the crimping tool according to the invention is characterized by an extremely high robustness and good manageability.
- the electrical energy required for operation can easily be supplied using thin, flexible cables.
- a use of difficult-to-reach places of use is nothing contrary.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Materials For Medical Uses (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Dowels (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
Description
Die Erfindung betrifft eine motorisch angetriebene Crimpzange, umfassend eine Tragsäule, auf der zwei Crimpwerkzeuge gelagert sind, von denen das eine fest und das andere in einer Führung der Tragsäule verschiebbar ist, einen signalbetätigbaren Motor mit einem Motorgehäuse, das starr an der Tragsäule befestigt ist und ein Stellglied umschließt, dass mit dem verschiebbaren Crimpwerkzeug verbunden ist sowie eine Steuerung zur Betätigung des Motors.The invention relates to a motor-driven crimping tool comprising a support column on which two crimping tools are mounted, one of which is fixed and the other in a guide of the support column is displaceable, a signal-actuated motor with a motor housing which is rigidly secured to the support column and an actuator encloses that is connected to the displaceable crimping tool and a controller for operating the motor.
Eine solche Crimpzange ist bekannt. Sie gelangt bei der Verbindung elektrisch leitender Kabel eines Durchmessers von mehreren Millimetern zur Anwendung und wird durch eine mit Druckluft beaufschlagte Kolben/Zylindereinheit betätigt. Diese hat einen vergleichsweise großen Wirkdurchmesser, um unter Verwendung der in üblichen Druckluftnetzen verfügbaren Arbeitsdrücke von 6 bzw. 12 bar die für einen Crimpprozess benötigten Kräfte zu erzeugen. Die Crimpzange ist dementsprechend unhandlich im Gebrauch und insbesondere wenig geeignet, an schwierig zugänglichen Orten Verwendung zu finden.Such a crimping tool is known. It is used in the connection of electrically conductive cables of a diameter of several millimeters and is operated by a pressurized with compressed air piston / cylinder unit. This has a comparatively large effective diameter in order to generate the forces required for a crimping process using the working pressures of 6 or 12 bar available in customary compressed air networks. Accordingly, the crimping tool is cumbersome to use and, in particular, less suitable for use in difficult to access places.
Aus der WO 02/102555A1 ist eine motorisch angetriebene Crimpzange bekannt mit einer Aufnahme für ein aus zwei Pressbacken zusammengesetztes Crimpwerkzeug. Die Crimpzange wist einen signalbetätigbaren Motor mit einem Motorgehäuse auf, das starr an der Aufnahme befestigt ist und ein Stellglied umschließt, das mit dem Crimpwerkzeug verbunden ist, sowie eine Steuerung zur Betätigung des Motors. Der Motor ist ein Elektromotor mit einem um eine Achse rotierenden Läufer. An dem Stellglied ist eine Verformungs- bzw. Drucksensor vorgesehen, der die sich beim Crimpvorgang ergebende mechanische Verformung des Stellglieds zu erfassen geeignet ist und in ein Signal umformt, das der Größe der Verformung proportional entspricht. Der Verformungssensor ist mit der Steuerung des Motors signalleitend verbunden und bewirkt eine Rückführung des verschiebbaren Crimpwerkzeugs in seine Ausgangslage beim Auftreten eines Signals, das einen willkürlich einstellbaren Wert überschreitet.From WO 02 / 102555A1 a motor-driven crimping tool is known with a receptacle for a composite of two pressing jaws crimping tool. The crimping tool includes a signal actuable motor having a motor housing rigidly secured to the receptacle and enclosing an actuator connected to the crimping tool and a controller for actuating the motor. The motor is an electric motor with a rotor rotating about an axis. On the actuator, a deformation or pressure sensor is provided, which is adapted to detect the resulting during the crimping mechanical deformation of the actuator and transforms into a signal that corresponds to the size of the deformation proportional. The deformation sensor is signal conductively connected to the controller of the motor and causes a return of the displaceable crimping tool to its original position upon the occurrence of a signal which exceeds an arbitrarily adjustable value.
Aus der US 6196045 ist eine motorisch angetriebene Crimpzange bekannt mit einer Tragsäule, auf der zwei Crimpwerkzeuge gelagert sind, von denen das eine fest und das andere in einer Führung der Tragsäule verschiebbar ist. Das Stellglied zur Verschiebung des beweglichen Crimpbackens wird durch eine mit einer Gewindemutter zusammenwirkende Gewindespindel gebildet.From US 6196045 a motor-driven crimping tool is known with a support column on which two crimping tools are mounted, one of which is fixed and the other in a guide of the support column is displaceable. The actuator for moving the movable crimping jaw is formed by a threaded spindle cooperating with a threaded nut.
Der Erfindung liegt die Aufgabe zugrunde, eine Crimpzange der eingangs genannten Art derart weiter zu entwickeln, dass sich eine verminderte Baugröße ergibt. Diese Aufgabe wird erfindungsgemäß bei einer Crimpzange der eingangs genannten Art mit den Merkmalen von Anspruch 1 gelöst. Auf vorteilhafte Ausgestaltungen nehmen die Unteransprüche Bezug.The invention has for its object to further develop a crimping tool of the type mentioned that results in a reduced size. This object is achieved with a crimping tool of the type mentioned with the features of
Bei der erfindungsgemäßen Crimpzange umfasst eine Tragsäule, auf der zwei Crimpwerkzeuge gelagert sind, von denen das eine fest und das andere in einer Führung der Tragsäule verschiebbar ist, einen signalbetätigbaren Motor mit einem Motorgehäuse, das, starr an der Tragsäule befestigt ist, und ein Getriebegehäuse, das ein Stellglied umschließt, das mit dem verschiebbaren Crimpwerkzeug verbunden ist sowie eine Steuerung zur Betätigung des Motors, wobei der Motor ein Elektromotor mit einem um eine Achse rotierenden Läufer ist, wobei an der Tagsäule zumindest einem Crimpwerkzeug und /oder dem Stellglied ein Verformungssensor vorgesehen ist, der die sich beim Crimpvorgang ergebende, mechanische Verformung der Tragsäule, zumindest eines Crimpwerkzeuges und/oder des Stellglieds zu erfassen geeignet ist und in ein Signal umformt, das der Größe der Verformung proportional entspricht und wobei der Verformungssensor mit der Steuerung des Motors signalleitend verbunden ist und eine Rückführung des verschiebbaren Crimpwerkzeugs in seine Ausgangslage bewirkt beim Auftreten eines Signals, das einen willkürlich einstellbaren Wert erreicht oder überschreitet, wobei das Getriebegehäuse und das Motorgehäuse nebeneinander liegend angeordnet sind und wobei das Stellglied und der Läufer des Elektromotors durch einen Riementrieb verbunden sind. Die Baulänge, parallel zur Bewegung des beweglichen Crimpwerkzeugs betrachtet, reduziert sich dadurch auf ein Minimum, was die Handlichkeit verbessert.In the crimping tool according to the invention comprises a support column on which two crimping tools are mounted, one of which is fixed and the other is displaceable in a guide of the support column, a signal-actuated motor with a motor housing which is rigidly fixed to the support column, and a transmission housing including an actuator connected to the slidable crimping tool and a controller for actuating the motor, the motor being an electric motor having a rotor rotating about an axis, wherein at least one crimping tool and / or the actuator provide a strain sensor on the tag column is suitable for detecting the resulting during the crimping, mechanical deformation of the support column, at least one crimping tool and / or the actuator is suitable and transforms into a signal that corresponds to the size of the deformation proportional and wherein the deformation sensor with the control of the motor signal conductively connected is and one Returning the slidable crimping tool to its original position causes a signal to reach or exceed an arbitrarily adjustable value when the transmission housing and the motor housing are arranged side by side and wherein the actuator and the rotor of the electric motor are connected by a belt drive. The overall length, considered parallel to the movement of the movable crimping tool, thereby reduced to a minimum, which improves the handling.
Elektromotoren mit einem um eine Achse rotierenden Läufer zeichnen sich durch eine ausgezeichnete Robustheit aus und haben eine dementsprechend große Langlebigkeit. Die Umwandlung der schnellen Rotationsbewegung in eine langsame Vorwärtsbewegung des verschiebbaren Crimpwerkzeuges einer Crimpzange bedingt jedoch stets die Verwendung eines Getriebes mit einem extrem hohen Übersetzungsverhältnis und einer entsprechend großen Abschaltträgheit. Diese Bedingungen sind auch bei der erfindungsgemäßen Crimpzange erfüllt. Gleichwohl können keine fehlerhaften Crimpprozesse stattfinden oder Beschädigungen der Crimpwerkzeuge, weil die sich bei der Durchführung eines Crimpvorganges automatisch ergebenden, elastischen Deformierungen der Tragsäule, zumindest eines Crimpwerkzeuges und/oder des Stellgliedes mittels eines Verformungssensors erfasst und in ein Signal umgeformt werden, dass der Größe der elastischen Verformung Tragsäule, zumindest eines Crimpwerkzeuges und/oder des Stellgliedes proportional entspricht, wobei der Verformungssensor mit der Steuerung des Motors signalleitend verbunden ist und eine Rückführung des verschiebbaren Crimpwerkzeuges in seine Ausgangslage bewirkt beim Auftreten eines Signals, das einen willkürlich einstellbaren Wert überschreitet. Dadurch können elastische Verformungen der Tragsäule, zumindest eines Crimpwerkzeuges und/oder des Stellgliedes überschreitende, plastische Deformierungen an diesen Teilen nicht mehr auftreten, wodurch sicher gestellt ist, dass gebrauchsbedingte Beschädigungen ausgeschlossen sind. Dennoch ist die Baugröße der erfindungsgemäßen Crimpzange im Vergleich zur bekannten Ausführung deutlich reduziert. Sie lässt sich dadurch problemlos an engen Einsatzstellen verwenden, beispielsweise an Montageorten, die sich im Inneren von Kraftfahrzeugen befinden.Electric motors with a rotor rotating about an axis are characterized by an excellent robustness and have a correspondingly long longevity. However, the conversion of the fast rotational movement in a slow forward movement of the displaceable crimping tool of a crimping tool always requires the use of a transmission with an extremely high transmission ratio and a correspondingly large switch-off inertia. These conditions are fulfilled even with the crimping tool according to the invention. Nevertheless, no faulty crimping processes can occur take place or damage the crimping tools, because the automatically resulting in the implementation of a crimping, elastic deformations of the support column, at least one crimping tool and / or the actuator detected by a deformation sensor and converted into a signal that the size of the elastic deformation support column, at least proportional to a crimping tool and / or the actuator, wherein the deformation sensor is signal conducting connected to the control of the motor and causes a return of the displaceable crimping tool to its original position upon the occurrence of a signal exceeding an arbitrarily adjustable value. As a result, elastic deformation of the support column, at least one crimping tool and / or the actuator bordering, plastic deformations on these parts no longer occur, which ensures that use-related damage is excluded. Nevertheless, the size of the crimping tool according to the invention is significantly reduced compared to the known design. As a result, it can easily be used in tight places, for example at assembly sites located inside motor vehicles.
An sich genügt es zur Erreichung dieses Zieles, den Motor beim Erreichen oder Überschreiten des Wertes sofort still zu setzen und beispielsweise einen Bremsmotor zu verwenden. Derartige Motoren sind jedoch teurer als konventionelle Motoren und es ergibt sich ein Zeitverlust bis zur Einleitung der Rückwärtsbewegung des beweglichen Crimperwerkzeuges in seine Ausgangslage. Die erfindungsgemäße Bauart wird daher bevorzugt verwendet.In itself, to achieve this goal, it is sufficient to immediately stop the engine when the value is reached or exceeded and, for example, to use a brake motor. However, such motors are more expensive than conventional motors and there is a loss of time to initiate the backward movement of the movable crimping tool to its original position. The design according to the invention is therefore preferably used.
Nach einer vorteilhaften Ausgestaltung ist es vorgesehen, dass das Stellglied eine zwischen dem Läufer und dem beweglichen Crimpwerkzeug mit einer Gewindemutter zusammenwirkende Gewindestange aufweist. Eine solche Bauform zeichnet sich durch eine besonders große Robustheit aus und eine dementsprechend hohe Gebrauchsdauer. Hierbei hat es sich als besonders vorteilhaft erwiesen, wenn zwischen dem Elektromotor und dem verschiebbaren Crimpwerkzeug ein Getriebegehäuse vorgesehen ist, in dem die Gewindestange axial unverschiebbar und drehbar und die Gewindemutter axial verschiebbar und unverdrehbar aufgenommen ist. Eine solche Bauform lässt sich besonders einfach und völlig wartungsfrei gestalten. Dabei ist die Gewindestange zweckmäßig auf zumindest einem Kugellager abgestützt. Sie ist dadurch besonders leicht verdrehbar und benötigt dementsprechend nur geringe Antriebskräfte. Der Motor kann hinsichtlich seiner Baugröße entsprechend reduziert werden.According to an advantageous embodiment, it is provided that the actuator has a cooperating between the rotor and the movable crimping tool with a threaded rod threaded rod. Such a design is characterized by a particularly great robustness and a accordingly high service life. It has proved to be particularly advantageous if between the electric motor and the displaceable crimping tool, a gear housing is provided, in which the threaded rod axially immovable and rotatable and the threaded nut is axially displaceable and non-rotatably received. Such a design can be made very simple and completely maintenance-free. The threaded rod is expediently supported on at least one ball bearing. It is therefore particularly easy to rotate and therefore requires only low driving forces. The engine can be reduced accordingly in terms of its size.
Als zweckmäßig hat es sich erwiesen, wenn die Gewindestange und der Läufer durch den Riementrieb verbunden sind.It has proven to be advantageous if the threaded rod and the rotor are connected by the belt drive.
Falls der Verformungssensor an der Tragsäule zur Anwendung gelangt, hat es sich als vorteilhaft bewährt, wenn er zwischen dem festgelagerten Crimpwerkzeug und der Befestigungsstelle des Motorgehäuses positioniert ist. Die Festlegung an der Tragsäule kann bei einer langgestreckten Bauform mittels in Richtung der Krafteinleitungsrichtung beabstandeter Maschinenschrauben erfolgen. Eventuelle elastische Deformierungen der Tragsäule werden unmittelbar auf den Sensor übertragen und in ein Signal umgeformt, das proportional zur Größe der Verformung ist. Es kann dementsprechend ausgewertet und zur Steuerung des Motors verwendet werden, um fehlerfreie Crimpprozesse zu erhalten und überlastungsbedingte Beschädigungen zu vermeiden. Da das Signal den Motor bei der erfindungsgemäßen Ausführung unter Umgehung der Getriebeuntersetzung auf direktem Wege steuert, ist die Erreichung beider Ziele in ausgezeichnetem Maße gewährleistet.If the deformation sensor on the support column is used, it has proven to be advantageous if it is positioned between the fixed crimping tool and the attachment point of the motor housing. The attachment to the support column can be carried out in an elongated design by means of spaced in the direction of the force introduction direction machine screws. Any elastic deformations of the support column are transmitted directly to the sensor and converted into a signal that is proportional to the size of the deformation. It can therefore be evaluated and used to control the motor to obtain error-free crimping and avoid damage caused by overload. Since the signal directly controls the motor in the embodiment according to the invention, bypassing the gear reduction, the achievement of both objectives is assured to an excellent degree.
Zweckmäßig wird der Verformungssensor durch einen elektrischen Zug- und/oder Drucksensor gebildet. Die sich während der bestimmungsgemäßen Verwendung ergebenden Verformungen lassen sich dadurch ausgezeichnet und direkt erfassen.Suitably, the deformation sensor is formed by an electrical tension and / or pressure sensor. The resulting during the intended use deformations can be characterized excellent and capture directly.
- Figur 1FIG. 1
- zeigt eine beispielhafte Ausführung der erfindungsgemäßen Crimpzange in längsgeschnittener Darstellungshows an exemplary embodiment of the crimping tool according to the invention in a longitudinal sectional view
- Figur 2FIG. 2
- zeigt die Crimpzange nach Figur 1 in quergeschnittener Darstellung entlang der Ebene A-Ashows the crimping tool of Figure 1 in a cross-sectional view along the plane A-A
In den Figuren 1 und 2 wird eine motorisch angetriebene Crimpzange in längs- bzw. quergeschnittener Darstellung gezeigt, umfassend eine Tragsäule 1, auf der zwei Crimpwerkzeuge 2, 3 gelagert sind, von denen das eine 2.fest und das andere 3 in einer Führung 4 der Tragsäule 1 verschiebbar ist, einen signalbetätigbaren Motor 5 mit einem Motorgehäuse 6, das starr an der Tragsäule 1 befestigt ist, und ein Stellglied 7, das mit dem verschiebbaren Crimpwerkzeug 3 verbunden ist, sowie eine Steuerung zur Betätigung des Motors 5. Der Motor 5 besteht aus einem Elektromotor mit einem um eine Achse rotierenden Läufer. Dieser ist durch einen Riementrieb 12 mit dem Stellglied 7 verbunden, das durch eine Gewindespindel gebildet wird, welche durch Kugellager auf einem Getriebegehäuse 9 abgestützt ist. Das Getriebegehäuse 9 umfasst im unteren Teil eine Führung von sechseckigem Profil, wie in Figur 2 zu ersehen. In der Führung ist das Stellglied 7.1 gelagert, welches nach Art einer Gewindemutter gestaltet ist und am unteren Ende der Zeichnung das verschiebbare Crimpwerkzeug 3 trägt.In Figures 1 and 2, a motor-driven crimping tool is shown in longitudinal or cross-sectional view, comprising a
Dem verschiebbaren Crimpwerkzeug 3 gegenüber liegend ist am unteren Ende der Tragsäule 1 ein festgelagertes, weiteres Crimpwerkzeug 2 vorgesehen.The
Verformungssensoren 8 können ausschließlich, alternativ oder kumulativ vorgesehen sein an der Tragsäule 1, zumindest einem Crimpwerkzeug 2, 3 und/oder dem Stellglied 7, 7.1. In den meisten Fällen ist die Verwendung eines einzigen Sensors völlig ausreichend. Dieser lässt sich besonders vorteilhaft an der Tragsäule 1 befestigen und im Falle einer Beschädigung problemlos ersetzen.
Die zum Betrieb der dargestellten Crimpzange benötigte Steuerung ist in der Zeichnung nicht wiedergegeben. Sie wird im allgemeinen in das Motorgehäuse 6 integriert und ist an dieser Stelle in besonders gutem Maße vor mechanischen Beschädigungen geschützt.The control needed to operate the illustrated crimping tool is not shown in the drawing. It is generally integrated into the motor housing 6 and is protected at this point to a particularly good extent from mechanical damage.
Zur Auslösung eines Crimpprozesses ist im allgemeinen ein Tastschalter vorgesehen. Dieser bewirkt über die in den Zeichnungen nicht wiedergegebenen Steuerung eine Rotation des im Elektromotor enthaltenen Läufers. Die Rotation wird durch den Riementrieb 12 auf das als Gewindespindel ausgebildete Stellglied 7 übertragen, das mit dem Innengewinde des nach Art einer Gewindemutter gestalteten Stellgliedes 7.1 in Eingriff steht. Dieses ist durch eine Sechskantführung des Getriebegehäuses 9 daran gehindert, der Drehbewegung des Stellglieds 7 zu folgen, während letzteres auf Kugellagern in axialer Richtung beiderseits in dem Getriebegehäuse 9 abgestützt und dadurch an einer axial gerichteten Ausweichbewegung gehindert ist. Die Drehbewegung des Stellglieds 7 bewirkt als Folge hiervon eine abwärts gerichtete Relativverlagerung des Stellglieds 7.1, die unmittelbar das auf seiner Stirnfläche festgelegte, verschiebbare Crimpwerkzeug 3 übertragen wird. Das verschiebbare Crimpwerkzeug 3 wird dadurch in Richtung des feststehenden Crimpwerkzeugs 2 verlagert. Dabei ergibt sich die Möglichkeit, dass das relativ verschiebbare und das starr festgelegte Crimpwerkzeug unmittelbar aufeinander treffen, mit der Folge, dass sich eine elastische Deformierung der Tragsäule 1 ergibt. Diese wird von zumindest einem der Sensoren 8 erfasst und in ein Signal umgeformt, dass der Größe der Verformung proportional entspricht. Wird dabei ein willkürlich einstellbarer Maximalwert überschritten, dann bewirkt die in der Zeichnung nicht wiedergegebene Steuerung eine Umsteuerung des Motors in Gegendrehrichtung und dadurch eine sofortige Rückführung des beweglichen Crimpwerkzeugs in seine Ausgangslage. Eine plastische Deformierung oder gar eine Beschädigung des Crimpwerkzeuges wird hierdurch zuverlässig vermieden.To initiate a crimping process, a key switch is generally provided. This causes via the not shown in the drawings control a rotation of the rotor contained in the electric motor. The rotation is transmitted through the
Als Alternative hierzu ergibt sich bei der Benutzung die Möglichkeit, dass sich bei Auslösung der Steuerung zweier zu verbindender Drahtenden und ein Crimpverbinder in dem Zwischenraum zwischen den beiden Crimpwerkzeugen befinden. Auch in diesem Falle löst die Betätigung des Druckschalters eine abwärtsgerichtete Relativerlagerung des verschiebbaren Crimpwerkzeuges aus, die jedoch die Durchführung eines Crimpprozesses bewirkt. Dabei werden die zu verbindenden Drahtenden gemeinsam von einem Crimp umschlossen, der normalerweise aus metallischem Werkstoff besteht und derart plastisch verformt wird, dass die beiden Drahtenden anschließend durch den Crimp unlösbar verbunden sind. Die dazu nötigen Kräfte sind erheblich. Sie werden so lange vergrößert, bis eine ausreichende, plastische Deformierung des Crimps eingetreten ist. Der diesbezügliche Wert ist in Abhängigkeit von der Größe des Crimps verschieden und kann im Versuch sehr leicht ermittelt werden. Wird er erreicht, dann löst zumindest einer der Sensoren 8 eine Umsteuerung des Motors 5 aus und eine Rückführung des verschiebbaren Crimpwerkzeugs in seine Ausgangslage. Damit wird bei jedem nachfolgenden Crimpvorgang die geforderte, feste Verbindung der beiden Draht- oder Kabelenden erreicht, ohne dass es zu einer Beschädigung des Crimpwerkzeuges kommen kann. Auch eine Verwendung bei der Verbindung anderer, säulenförmiger Körper ist möglich.As an alternative to this, there is the possibility during use of the triggering of the control of two wire ends to be connected and a crimp connector in the space between the two crimping tools. Also in this case, the actuation of the pressure switch triggers a downward relative bearing of the displaceable crimping tool, which, however, causes the implementation of a crimping process. In this case, the wire ends to be connected are jointly enclosed by a crimp, which normally consists of metallic material and is plastically deformed such that the two wire ends are subsequently connected inseparably by the crimp. The necessary forces are considerable. They are enlarged until sufficient, plastic deformation of the crimp has occurred. The value in this regard differs depending on the size of the crimp and can be determined very easily in the experiment. He will achieved, then at least one of the
Die erfindungsgemäße Crimpzange zeichnet sich durch eine außerordentlich große Robustheit und gute Handlichkeit aus. Die zum Betrieb erforderliche, elektrische Energie lässt sich problemlos unter Verwendung dünner, flexibler Kabel zuführen. Einer Verwendung an schwierig zu erreichenden Einsatzstellen steht dadurch nichts entgegen.The crimping tool according to the invention is characterized by an extremely high robustness and good manageability. The electrical energy required for operation can easily be supplied using thin, flexible cables. A use of difficult-to-reach places of use is nothing contrary.
Claims (7)
- Motor-actuated crimping tongs comprising a supporting column (1) on which two crimping tools (2, 3) are mounted, of which one (2) is fixed and the other (3) is able to slide in a guide (4) of the supporting column (1), a signal-activated motor (5) with a motor casing (6), which is rigidly mounted on the supporting column (1), and a gearbox (9) that includes an actuator (7) connected to the sliding crimping tool (3), and a controller for controlling the motor (5), with the motor (5) being an electric motor with a rotor rotating about an axis, with a deformation sensor (8) on the supporting column (1) being assigned to at least one crimping tool (2, 3) and/or the actuator (7, 7.1), that is suitable for detecting the mechanical deformation of the supporting column (1), at least of a crimping tool (2, 3) and/or of the actuator (7, 7.1), resulting during a crimping operation and converting it to a signal proportional to the degree of deformation, and with the deformation sensor (8) being connected to the controller of the motor (5) in such a manner as to conduct signals and effecting a return of the sliding crimping tool (3) to its starting position if a signal occurs that reaches or exceeds a value which can be arbitrarily set, with the gearbox (9) and the motor casing (6) being arranged lying alongside each other and with the actuator and the rotor of the electric motor (5) being connected by a belt drive (12).
- Crimping tongs according to claim 1, characterized in that the actuator has a threaded rod interacting with a threaded nut between the rotor and the sliding crimping tool (3).
- Crimping tongs according to claim 2, characterized in that the threaded rod is accommodated in the gearbox (9) so that it is axially fixed and can rotate and the threaded nut is rotationally fixed and can slide axially.
- Crimping tongs according to claim 3, characterized in that the threaded rod is supported on at least one ball bearing.
- Crimping tongs according to any one of claims 2 to 4, characterized in that the threaded rod and the rotor are connected by the belt drive.
- Crimping tongs according to any one of claims 1 to 5, characterized in that the deformation sensor (8) is arranged on the supporting column (1) between the fixed mounted crimping tool (2) and the mounting point of the motor casing (6).
- Crimping tongs according to any one of claims 1 to 6, characterized in that the deformation sensor (8) is formed by an electrical tension and/or pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL04790977T PL1634352T3 (en) | 2003-10-30 | 2004-10-28 | Crimping pliers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10350952A DE10350952A1 (en) | 2003-10-30 | 2003-10-30 | Crimping Tool |
| PCT/EP2004/012207 WO2005043692A1 (en) | 2003-10-30 | 2004-10-28 | Crimping pliers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1634352A1 EP1634352A1 (en) | 2006-03-15 |
| EP1634352B1 true EP1634352B1 (en) | 2007-04-04 |
Family
ID=34529989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04790977A Not-in-force EP1634352B1 (en) | 2003-10-30 | 2004-10-28 | Crimping pliers |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1634352B1 (en) |
| AT (1) | ATE358903T1 (en) |
| DE (2) | DE10350952A1 (en) |
| ES (1) | ES2285533T3 (en) |
| PL (1) | PL1634352T3 (en) |
| WO (1) | WO2005043692A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004043776B3 (en) * | 2004-09-10 | 2006-06-14 | Bernhard Schäfer Werkzeug- und Sondermaschinenbau GmbH | Motor-driven crimping device |
| TW201233505A (en) * | 2010-12-22 | 2012-08-16 | Rennsteig Werkzeuge Gmbh | Plier |
| EP2786845B1 (en) * | 2013-04-03 | 2016-03-16 | FELCO Motion SA | Portable electric tool |
| EP2826598B1 (en) * | 2013-07-17 | 2016-12-28 | Wezag GmbH Werkzeugfabrik | Pressing tool with a mechanically acting pressing force limiter |
| CN104875162A (en) * | 2015-06-11 | 2015-09-02 | 赵士立 | Automatic rotary puller for fixed bolts |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0184204A1 (en) * | 1984-12-06 | 1986-06-11 | Siemens Aktiengesellschaft | Power control for crimping machines |
| DE3719442A1 (en) * | 1987-06-11 | 1988-12-22 | Pfisterer Elektrotech Karl | Portable press for producing compression joints |
| SE8803688D0 (en) * | 1988-10-17 | 1988-10-17 | C A Weidmueller Gmbh & Co | CRAFTS TOOL WITH ELECTRIC OPERATION |
| JPH06104067A (en) * | 1992-09-18 | 1994-04-15 | Nichifu Tanshi Kogyo:Kk | Hand type crimp machine |
| JPH07176358A (en) * | 1992-12-25 | 1995-07-14 | Daiichi Denki:Kk | Motor-driven terminal crimp tool |
| DE29806179U1 (en) * | 1998-04-03 | 1998-10-08 | Connectool GmbH & Co., 32758 Detmold | Crimping tool |
| US6196045B1 (en) * | 1999-12-20 | 2001-03-06 | Chromatography Research Supplies, Inc. | Powered crimping tool |
| US7036806B2 (en) * | 2001-06-19 | 2006-05-02 | Von Arx Ag | Press tool comprising a spindle for moulding coupling elements |
| DE10161717B4 (en) * | 2001-12-15 | 2019-10-10 | Glw - Elektrotechnische Bauteile Kunststoffverarbeitung Gmbh | Apparatus for non-manual crimping |
| DE10246514A1 (en) * | 2002-10-04 | 2004-04-15 | REMS-WERK Christian Föll und Söhne GmbH & Co. | Portable tool |
-
2003
- 2003-10-30 DE DE10350952A patent/DE10350952A1/en not_active Withdrawn
-
2004
- 2004-10-28 WO PCT/EP2004/012207 patent/WO2005043692A1/en active IP Right Grant
- 2004-10-28 ES ES04790977T patent/ES2285533T3/en active Active
- 2004-10-28 EP EP04790977A patent/EP1634352B1/en not_active Not-in-force
- 2004-10-28 AT AT04790977T patent/ATE358903T1/en not_active IP Right Cessation
- 2004-10-28 DE DE502004003413T patent/DE502004003413D1/en active Active
- 2004-10-28 PL PL04790977T patent/PL1634352T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004003413D1 (en) | 2007-05-16 |
| ES2285533T3 (en) | 2007-11-16 |
| PL1634352T3 (en) | 2007-08-31 |
| EP1634352A1 (en) | 2006-03-15 |
| DE10350952A1 (en) | 2005-06-09 |
| ATE358903T1 (en) | 2007-04-15 |
| WO2005043692A1 (en) | 2005-05-12 |
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