EP3818600B1 - Production of press-fit and crimp connections in a vice - Google Patents
Production of press-fit and crimp connections in a vice Download PDFInfo
- Publication number
- EP3818600B1 EP3818600B1 EP18742909.7A EP18742909A EP3818600B1 EP 3818600 B1 EP3818600 B1 EP 3818600B1 EP 18742909 A EP18742909 A EP 18742909A EP 3818600 B1 EP3818600 B1 EP 3818600B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- connection element
- strand
- receiving
- vice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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- 238000000034 method Methods 0.000 claims description 33
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- 238000003825 pressing Methods 0.000 claims description 11
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- 238000001816 cooling Methods 0.000 claims description 5
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
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- 238000010438 heat treatment Methods 0.000 claims 2
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- 238000002788 crimping Methods 0.000 description 9
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Images
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
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0263—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for positioning or holding parts during soldering or welding process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/027—Soldered or welded connections comprising means for positioning or holding the parts to be soldered or welded
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/187—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping combined with soldering or welding
-
- 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
-
- 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
- H01R43/0421—Hand tools for crimping combined with other functions, e.g. cutting
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/532—Conductor
- Y10T29/53209—Terminal or connector
- Y10T29/53213—Assembled to wire-type conductor
- Y10T29/53235—Means to fasten by deformation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/532—Conductor
- Y10T29/53209—Terminal or connector
- Y10T29/53213—Assembled to wire-type conductor
- Y10T29/53239—Means to fasten by elastic joining
Definitions
- the present invention relates to a method for connecting a strand element to a connection element using a method for deforming, in particular a crimping method, at least in parts of the manufacturing method, using a vise or vise.
- the method is used in particular to connect a pipe to a termination or connection element, or, for example, to connect a cable to a cable lug.
- post-processing may be required to completely manufacture the workpiece.
- This post-processing may include drilling and/or welding.
- a great deal of pressure is exerted on the crimp connection, so that this crimp connection can be damaged or destroyed, and the joining process thus suffers significant losses in quality.
- the GB710,974 discloses a holder with two receivers for holding a barrel during crimping of the barrel to a wire, the receivers each having two semi-openings with two diameters.
- a system according to the invention which is set up to establish a mechanical connection between a line element and a connection element, has the following components: A pair of receptacles, each receptacle having a face with a groove and a well.
- the groove is suitable for accommodating the connection element.
- the groove can be designed in such a way that it encloses the connecting element at a distance of, for example, less than 1 mm or less than 0.1 mm.
- the fillet may be configured to provide a slight pinch of the terminal when the pair of receptacles encircle the terminal.
- the fillet can be arranged in the middle of the end face.
- the fillet can have a semicircular, oval, triangular or polygonal shape.
- the shaft can be arranged essentially in the middle of the end face.
- the shaft can be completely enclosed by the material of the receiving element, but it can also be open, at least partially, on one side.
- the open side can be designed in such a way that elements of a slide can be accommodated at this point.
- the system also has a pair of press inserts.
- each press insert has an end face with a groove that extends over the entire narrow side of the end face.
- the groove of the press inserts has a smaller diameter than the groove of the receiving elements, so that the press insert is suitable for forming the connection element.
- the press insert is set up to be arranged in the shaft of the connecting element. This is designed so that when the die is placed in the well, the fillet of the die is substantially flush with the fillet of the receptacle, apart from the different diameters and shapes of the fillets.
- the press insert can protrude up to 0.2 mm. This has the advantage that the clamping forces are essentially introduced into the workpiece via the press inserts.
- the press insert can protrude up to 0.2 mm. This has the advantage that the clamping forces are essentially introduced into the workpiece via the press inserts.
- the press insert can protrude up to 0.2 mm. This has the advantage that the clamping forces are essentially introduced into
- the receiving elements and the press inserts are arranged in a vise or vise which, depending on the embodiment, can be operated in a vertical and/or horizontal installation position.
- a vise or vise is commonly used to clamp or clamp certain workpieces for machining.
- the machining of the workpieces is carried out by other machines, e.g. by milling machines.
- the vise or vise is used for machining, in particular for forming, the workpieces. This is particularly advantageous because it means that standard machine tools, such as a vice or vise, can be used for the production of forming workpieces, for example a crimp connection. Only the specific forming or crimping tools, such as the receiving elements and the press inserts, have to be used in these standard machine tools.
- the system also has a clamp.
- the clamping bracket has an end face with a groove that is suitable for receiving the connection element.
- the groove can be designed in such a way that it encloses the connecting element at a distance of, for example, less than 1 mm or less than 0.5 mm.
- the fillet can be arranged in the middle of the end face.
- the fillet can have a semicircular, oval, triangular or polygonal shape.
- the clamping bracket has a stop which is arranged on a first side of the clamping bracket. In one embodiment, the stop does not completely close the groove of the clamping bracket, but is suitable for allowing a protruding part of the connection element to protrude beyond the connection element. In one embodiment, the stop is moveable.
- the system in making the connection, takes the string member with the terminal member located at a first end of the string member up to the stop and places the pair of crimping inserts around a central portion (viewed in the axial direction) of the terminal member.
- the middle area of the connection element can include the middle third, but it can also extend to one end of the connection element.
- the press inserts and the receiving elements are therefore designed in pairs so that they can be positioned as symmetrically as possible around the central area of the Can arrange connection element and thus achieve a symmetrical and high-quality transformation.
- more than two each of dies and receptacles are used in manufacture.
- the line element is a tube that can be used, for example, for tube connections in sanitary technology.
- the string element is an electrical line or a bundle of lines, so that establishing a mechanical connection causes an electrical connection to be established at the same time.
- the method mentioned makes it possible to produce an electrical connection with a low contact resistance in a relatively simple manner.
- the strand element consists at least partially of plastics, in particular thermoplastics, of soft metals, in particular of aluminum or copper or aluminum and/or copper alloys, and/or of steel and/or of combinations of these materials.
- the connection element consists at least partially of plastics, in particular thermoplastics, of soft metals, in particular of aluminum or copper or aluminum and/or copper alloys, and/or of steel and/or of combinations of these materials.
- the strand element and/or the connection element is/are coated with plastics, with paint, with metals, in particular with nickel, tin, zinc, silver. The measures mentioned have the advantageous effect of further improving the conductivity, in particular the transition and overall resistance and/or the corrosion resistance, strength properties and/or flow properties of the workpiece produced.
- the pair of flutes of the dies form a hexagon. This is particularly advantageous for cables with a certain thickness that are to be fixed during assembly.
- the system also has a welding tool for the integral connection of the strand element and the connecting element.
- a welding tool for the integral connection of the strand element and the connecting element. This enables a connection of the highest quality, both mechanically and electrically.
- welding occurs on some types of welding tools under high pressure.
- the axial force used can, for example, be greater than 1 kN, in particular greater than 10 kN.
- a system according to the invention ensures that the reshaping, for example the described crimping process, produces a connection of such high quality that the welding process forces that occur do not result in breakage or deterioration of the connection.
- a pressure connection welding process such as spot friction welding, is used as the welding method. This advantageously creates a very compact welded structure.
- the stop is closed by means of a closing spring. This is particularly advantageous when the stop is part of a machine with which the crimping process is carried out fully automatically or semi-automatically; because this allows the workpiece to be released very easily, e.g. for removal, and closed again during the manufacturing process.
- the pair of receiving elements is driven by the jaws or jaw attachment of the vise or vise.
- only one of the jaws can be designed to be movable. This means that large forces can be used in the forming process in a reproducible manner.
- At least one side of the vise or vise is integrated into a tool unit that is moved along a slide bar. This enables simple and effective integration into the manufacturing process.
- the system has a further clamping element, which is suitable for accommodating the string element and is in particular moved together with the tool unit. This further improves the manufacturing process because it enables or at least simplifies the exact fixing of the workpiece at the beginning of the manufacturing process.
- a holding device is used as part of the receiving element for receiving the line element and a correspondingly arranged die on the tool unit is provided for positioning and aligning the connection element relative to the line element.
- the holding device and the Correspondingly arranged dies are mounted such that they can be displaced horizontally and/or vertically relative to one another by means of at least one compensating element.
- the die has a clamping hook, which is made to correspond to a tab of the connecting element and thus allows the positioning and alignment of the connecting element by means of the movement of the clamping hook.
- the connecting element has a tab.
- the lug can be designed as a screw lug.
- the tab may have an opening.
- Such connection elements with tabs are required for many applications, for example in industry or automotive engineering.
- an embodiment of the clamp can be selected in which the stop does not completely close the groove of the clamp, but which is suitable for allowing a protruding part of the connection element to protrude beyond the connection element.
- the system has cooling and/or preheating. This can improve process stability and/or tool life.
- cooling and/or preheating the workpiece can improve the crimping and/or welding properties, for example the optimal process temperature can be set and maintained for each material combination of strand element and connection element.
- the preheating can be used to support the forming, for example in the case of workpieces that have thermoplastics.
- the invention also includes a method for producing a mechanical (non-positive and, depending on the choice/shaping of the press insert, at the same time positive) connection between a strand element and a connection element.
- a mechanical non-positive and, depending on the choice/shaping of the press insert, at the same time positive
- the line element is arranged with the connecting element on a stop of a clamping bracket.
- the workpiece is arranged on the stop in such a way that the connection element is in direct contact with the stop. This improves the reproducibility and/or quality of manufacture.
- a material connection between the line element and the connection element is produced by means of a welding tool. This enables a connection of the highest quality, both mechanically and electrically. In the process, welding happens to some Types of welding tools under high pressure.
- the axial force used can, for example, be greater than 1 kN, in particular greater than 10 kN.
- the method mentioned ensures that the reshaping, for example by the crimping method described, produces a connection of such high quality that the welding process forces that occur do not result in the connection breaking.
- the line element is arranged in the connection element in such a way that a predefined distance remains between a first end of the line element and the inside of the end face of the connection element. In this way, an expansion, e.g. due to thermal effects, of the line element can be compensated for during production, so that the line element does not move in the connection element during production and thus deteriorate the connection.
- a stop for the strand can also be provided.
- a pair of press inserts is arranged around a central area of the connection element.
- the middle area of the connection element can include the middle third, but it can also extend to one end of the connection element.
- connection element has also proven to be advantageous to move the line element and the connection element vertically and/or horizontally in relation to one another until the connection element is optimally positioned and aligned relative to the line element.
- Fig. 1a shows the schematic representation of a press insert 300. It is clearly visible that the groove 315 extends over the entire narrow side of the end face 310 of the press insert 300.
- the groove 315 is designed in such a way that it has a smaller diameter than the groove 215 of the receiving elements 200 (see FIG Fig. 1b ).
- the press insert 300 is suitable for forming the connecting element 150 (see Figure 2a ) to accomplish.
- the fillet 315 is configured in the embodiment shown to have a hexagonal shape when the die 300 is used in pairs.
- Fig. 1b shows the schematic representation of a receiving element 200.
- the receiving element 200 has a groove 215 on the end face 210.
- FIG. Furthermore, the receiving element 200 has a shaft 230 . In the embodiment shown, this is open at the bottom.
- the receiving element 200 is designed in such a way that when the pressing insert 300 (see Fig. 1a ) is disposed in the well 230, the fillet 315 of the die 300 is substantially aligned with the fillet 215 of the receptacle 200, except for the different diameters and shapes of the fillets 215 and 315.
- the die may be up to 0.2 mm to preside
- FIG. 1c shows the schematic representation of a clamp 400.
- the clamp 400 has a groove 415 on the end face 410 (this on in 1c down) up.
- the clamping bracket 400 has a stop 450 on a first side 420 .
- the clamp 400 is designed to be movable. It can be clearly seen that the stop 450, when it is guided down and closed, the groove 415 of the Clamping bracket 400 is not completely closed, but is suitable for allowing a protruding part of the connection element to protrude over the connection element.
- Figure 2a shows the schematic exploded view of a system 10 according to the invention, which was realized by means of a vise or vise.
- the elements of the press insert 300 and the receiving element 200 are attached to an adapter plate 290 which is arranged on a carriage track 530 .
- the elements of the press insert 300 and the receiving element 200 on an adapter plate 290 can also be made in one piece.
- the adapter plate 290 enables simple assembly on a vise or vise 500. It can be clearly seen that the elements of the press insert 300, receiving element 200 and adapter plate 290 are arranged in pairs opposite one another.
- a line element 100 and a connection element 150 are arranged in the middle of the system 10 .
- the connection element 150 has a tab 158 .
- the connector 150 is shown after the reshaping and opening of the system 10; thereby, by closing the movable element of the vise or vice 500, the central area 155 of the connecting element 150 was pressed into a hexagonal shape.
- a vise or vice 500 can exert enormous forces on the workpiece in a predictable manner and ensure a satisfactory repeatability of the movement sequences and thus bring about a high-quality forming.
- Figure 2b shows a closed vice or vice immediately after the end of the forming process. Only the tab 158 and an upper part of the connecting element 150 can be seen. The change in the elements of the vise or vise 500 is, particularly in comparison with Figure 2a , clearly visible. In this case, the pressing insert 300 is covered by the closed receiving element 200 .
- a welding tool 600 eg based on a spot friction welding tool, a sonotrode, an electrode or a hot stamp
- the welding tool 600 can be used to achieve a cohesive connection between the strand element 100 and the connecting element 150 after the forming, and thus further improve the quality of the connection.
- the system 10 is arranged vertically.
- the receiving element 200 is floatingly mounted in the vertical direction on a lower tool unit 550 by a spring mechanism and can be moved in the open vise position move relative to the die 300.
- the receiving element 200 is designed in such a way that, in addition to the connecting element 150 , it also receives the strand element 100 in a separate recess/mold cavity outside the forming area by means of a die 580 and a holding device 590 .
- the line element 100 and the connecting element 150 are placed horizontally in the receiving element 200, the connecting element 150 being fixed via a clamp 400 and the line element 100 via a separate clamping element 540 on the receiving element 200 or on a holding device 590 as part of the receiving element 200.
- the die 580 for holding and positioning the connecting element 150 in the 3 shown can be displaced in the vertical and/or horizontal direction in relation to the matrix 580. This allows for easier positioning and retention of the connector member 150 relative to the string member 100.
- This is preferably accomplished by a balancing member 510, which may be a spring, hydraulic cylinder, or similar mechanical balancing member.
- the compensating element 510 is preferably arranged on the lower tool unit 550 below the die 510 and/or below the holding device 590 of the connecting element 200.
- the die 580 is held by a stamp-shaped hydraulic compensating element 510 and the holding device 590 of the connecting element 200 by means of a spring as a compensating element 510.
- the die 580 also has a clamping hook 585 which grasps the tab 158 of the connecting element 150 and thus supports positioning of the connection element 150 is used.
- the receiving element 200 is arranged higher than the press insert 300 by the spring mechanism. This has the advantage that tilting or slipping of the connecting element 150 and the strand element 100 on the relatively narrow press insert 300, which otherwise projects relative to the receiving element 200, whose width usually • 10 mm is avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Wire Processing (AREA)
- Automatic Assembly (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Verbindung eines Strangelements mit einem Anschlusselement unter Verwendung eines Verfahrens zur Verformung, insbesondere eines Crimp-Verfahrens, zumindest in Teilen des Herstellungsverfahrens, unter Verwendung eines Schraub- oder Spannstocks. Das Verfahren wird insbesondere verwendet für die Verbindung eines Rohres mit einem Abschluss- oder Anschlusselement, oder beispielsweise die Verbindung eines Kabels mit einem Kabelschuh.The present invention relates to a method for connecting a strand element to a connection element using a method for deforming, in particular a crimping method, at least in parts of the manufacturing method, using a vise or vise. The method is used in particular to connect a pipe to a termination or connection element, or, for example, to connect a cable to a cable lug.
Beim Beispiel der Verbindung eines Kabels mit einem Kabelschuh kann, zur vollständigen Herstellung des Werkstücks, eine Nachbearbeitung erforderlich sein. Diese Nachbearbeitung kann einen Bohr- und/oder einen Schweißvorgang beinhalten. In bestimmten Fällen wird dabei ein großer Druck auf die Crimp-Verbindung ausgeübt, so dass diese Crimp-Verbindung beschädigt oder zerstört werden kann und damit das Fügeverfahren deutliche Qualitätseinbußen erleidet.In the example of connecting a cable with a cable lug, post-processing may be required to completely manufacture the workpiece. This post-processing may include drilling and/or welding. In certain cases, a great deal of pressure is exerted on the crimp connection, so that this crimp connection can be damaged or destroyed, and the joining process thus suffers significant losses in quality.
Die
Eine Aufgabe der Erfindung ist es daher, unter Einsatz konstruktiv möglichst einfacher Mittel diese Nachteile wenigstens teilweise zu überwinden.It is therefore an object of the invention to at least partially overcome these disadvantages using means that are as simple as possible in terms of construction.
Die Aufgabe wird durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen, der Beschreibung und den begleitenden Figuren angegeben.The object is solved by the subject matter of the independent claims. Advantageous developments of the invention are specified in the dependent claims, the description and the accompanying figures.
Ein erfindungsgemäßes System, das eingerichtet ist, eine mechanische Verbindung zwischen einem Strangelement und einem Anschlusselement herzustellen, weist folgende Komponenten auf:
Ein Paar von Aufnahmeelementen, von denen jedes Aufnahmeelement eine Stirnseite mit einer Kehlung und einen Schacht aufweist. Die Kehlung ist geeignet, das Anschlusselement aufzunehmen. Dazu kann die Kehlung so ausgelegt sein, dass diese das Anschlusselement mit einem Abstand, beispielsweise mit weniger als 1 mm oder weniger als 0,1 mm, umschließt. In einigen Ausführungsformen kann die Kehlung so ausgelegt sein, dass dadurch eine leichte Quetschung des Anschlusselements erfolgt, wenn das Paar von Aufnahmeelementen das Anschlusselement umschließt. Die Kehlung kann in der Mitte der Stirnseite angeordnet sein. Die Kehlung kann eine halbrunde, eine ovale, eine dreieckige oder eine mehreckige Form aufweisen. Der Schacht kann im Wesentlichen in der Mitte der Stirnseite angeordnet sein. Der Schacht kann vollständig von dem Material des Aufnahmeelements umschlossen sein, er kann aber auch nach einer Seite, zumindest teilweise, geöffnet sein. Die geöffnete Seite kann so ausgelegt sein, dass an dieser Stelle Elemente eines Schlittens aufgenommen werden können.A system according to the invention, which is set up to establish a mechanical connection between a line element and a connection element, has the following components:
A pair of receptacles, each receptacle having a face with a groove and a well. The groove is suitable for accommodating the connection element. For this purpose, the groove can be designed in such a way that it encloses the connecting element at a distance of, for example, less than 1 mm or less than 0.1 mm. In some embodiments, the fillet may be configured to provide a slight pinch of the terminal when the pair of receptacles encircle the terminal. The fillet can be arranged in the middle of the end face. The fillet can have a semicircular, oval, triangular or polygonal shape. The shaft can be arranged essentially in the middle of the end face. The shaft can be completely enclosed by the material of the receiving element, but it can also be open, at least partially, on one side. The open side can be designed in such a way that elements of a slide can be accommodated at this point.
Weiterhin weist das System ein Paar von Presseinsätzen auf. Dabei weist jeder Presseinsatz eine Stirnseite mit einer Kehlung auf, die sich über die gesamte Schmalseite der Stirnseite erstreckt. Die Kehlung der Presseinsätze hat dabei einen geringeren Durchmesser als die Kehlung der Aufnahmeelemente, so dass der Presseinsatz geeignet ist, eine Umformung des Anschlusselements zu bewerkstelligen. Der Presseinsatz ist eingerichtet, in dem Schacht des Anschlusselements angeordnet zu werden. Dies ist so gestaltet, dass, wenn der Presseinsatz in dem Schacht angeordnet ist, die Kehlung des Presseinsatzes im Wesentlichen mit der Kehlung des Aufnahmeelements fluchtet, abgesehen von den unterschiedlichen Durchmessern und Formen der Kehlungen. In einer Ausführungsform kann der Presseinsatz bis zu 0,2 mm vorstehen. Dies hat den Vorteil, dass damit die Spannkräfte im Wesentlichen über die Presseinsätze in das Werkstück eingeleitet werden. In einer nicht beanspruchten Ausführungsform ist dieThe system also has a pair of press inserts. In this case, each press insert has an end face with a groove that extends over the entire narrow side of the end face. The groove of the press inserts has a smaller diameter than the groove of the receiving elements, so that the press insert is suitable for forming the connection element. The press insert is set up to be arranged in the shaft of the connecting element. This is designed so that when the die is placed in the well, the fillet of the die is substantially flush with the fillet of the receptacle, apart from the different diameters and shapes of the fillets. In one embodiment, the press insert can protrude up to 0.2 mm. This has the advantage that the clamping forces are essentially introduced into the workpiece via the press inserts. In a non-claimed embodiment, the
Kombination von Aufnahmeelement und Presseinsatz, oder Kombination von Aufnahmeelement, Presseinsatz und Adapterplatte, einstückig gestaltet.Combination of receiving element and press insert, or combination of receiving element, press insert and adapter plate, designed in one piece.
Die Aufnahmeelemente und die Presseinsätze sind dabei in einem Schraub- oder Spannstock angeordnet, der je nach Ausführungsform in vertikaler und/oder horizontaler Einbaulage betrieben werden kann. Dabei wird ein Schraub- oder Spannstock üblicherweise verwendet, um bestimmte Werkstücke für die Bearbeitung einzuspannen oder einzuklemmen. Die Bearbeitung der Werkstücke wird aber von anderen Maschinen, z.B. von Fräsmaschinen, durchgeführt. Bei der vorliegenden Erfindung hingegen wird der Schraub- oder Spannstock für die Bearbeitung, insbesondere für die Umformung, der Werkstücke genutzt. Dies ist insbesondere deshalb vorteilhaft, weil dadurch Standard-Werkzeugmaschinen, wie z.B. ein Schraub- oder Spannstock, für die Herstellung für die Umformung von Werkstücken, beispielsweise einer Crimpverbindung, verwendet werden können. In diese Standard-Werkzeugmaschinen müssen nur die spezifischen Umformungs- bzw. Crimpwerkzeuge, wie die Aufnahmeelemente und die Presseinsätze, eingesetzt werden.The receiving elements and the press inserts are arranged in a vise or vise which, depending on the embodiment, can be operated in a vertical and/or horizontal installation position. A vise or vise is commonly used to clamp or clamp certain workpieces for machining. However, the machining of the workpieces is carried out by other machines, e.g. by milling machines. In the present invention, on the other hand, the vise or vise is used for machining, in particular for forming, the workpieces. This is particularly advantageous because it means that standard machine tools, such as a vice or vise, can be used for the production of forming workpieces, for example a crimp connection. Only the specific forming or crimping tools, such as the receiving elements and the press inserts, have to be used in these standard machine tools.
Weiterhin weist das System einen Spannbügel auf. Der Spannbügel weist eine Stirnseite mit einer Kehlung auf, die geeignet ist, das Anschlusselement aufzunehmen. Dazu kann die Kehlung so ausgelegt sein, dass diese das Anschlusselement mit einem Abstand, beispielsweise mit weniger als 1 mm oder weniger als 0,5 mm, umschließt. Die Kehlung kann in der Mitte der Stirnseite angeordnet sein. Die Kehlung kann eine halbrunde, eine ovale, eine dreieckige oder eine mehreckige Form aufweisen. Weiterhin weist der Spannbügel einen Anschlag auf, der an einer ersten Seite des Spannbügels angeordnet ist. In einer Ausführungsform verschließt der Anschlag die Kehlung des Spannbügels nicht vollständig, sondern ist geeignet, einen vorspringenden Teil des Anschlusselements über das Anschlusselement hinausragen zu lassen. In einer Ausführungsform ist der Anschlag beweglich.The system also has a clamp. The clamping bracket has an end face with a groove that is suitable for receiving the connection element. For this purpose, the groove can be designed in such a way that it encloses the connecting element at a distance of, for example, less than 1 mm or less than 0.5 mm. The fillet can be arranged in the middle of the end face. The fillet can have a semicircular, oval, triangular or polygonal shape. Furthermore, the clamping bracket has a stop which is arranged on a first side of the clamping bracket. In one embodiment, the stop does not completely close the groove of the clamping bracket, but is suitable for allowing a protruding part of the connection element to protrude beyond the connection element. In one embodiment, the stop is moveable.
Das System nimmt, bei der Herstellung der Verbindung, das Strangelement mit dem Anschlusselement, das an einem ersten Ende des Strangelements angeordnet ist, bis zu dem Anschlag auf und ordnet das Paar von Presseinsätzen um einen mittleren Bereich (in Axialrichtung gesehen) des Anschlusselements an. Der mittlere Bereich des Anschlusselements kann dabei das mittlere Drittel umfassen, er kann sich aber auch bis zu einem Ende des Anschlusselements erstrecken. Die Presseinsätze und die Aufnahmeelemente sind deshalb paarweise ausgeführt, damit diese sich möglichst symmetrisch um den mittleren Bereich des Anschlusselements anordnen können und damit eine symmetrische und qualitativ hochwertige Umformung erreichen. In einer Ausführungsform werden mehr als je zwei Presseinsätze und Aufnahmeelemente bei der Herstellung verwendet.The system, in making the connection, takes the string member with the terminal member located at a first end of the string member up to the stop and places the pair of crimping inserts around a central portion (viewed in the axial direction) of the terminal member. The middle area of the connection element can include the middle third, but it can also extend to one end of the connection element. The press inserts and the receiving elements are therefore designed in pairs so that they can be positioned as symmetrically as possible around the central area of the Can arrange connection element and thus achieve a symmetrical and high-quality transformation. In one embodiment, more than two each of dies and receptacles are used in manufacture.
In einer Ausführungsform ist das Strangelement ein Rohr, das beispielsweise für Rohrverbindungen in der Sanitärtechnik verwendet werden kann.In one embodiment, the line element is a tube that can be used, for example, for tube connections in sanitary technology.
In einer Ausführungsform ist das Strangelement eine elektrische Leitung oder ein Leitungsbündel, so dass das Herstellen einer mechanischen Verbindung gleichzeitig das Herstellen einer elektrischen Verbindung bewirkt. Dabei ermöglicht das genannte Verfahren auf relativ einfache Weise die Herstellung einer elektrischen Verbindung mit geringem Übergangswiderstand.In one embodiment, the string element is an electrical line or a bundle of lines, so that establishing a mechanical connection causes an electrical connection to be established at the same time. In this case, the method mentioned makes it possible to produce an electrical connection with a low contact resistance in a relatively simple manner.
In einer Ausführungsform besteht das Strangelement zumindest teilweise aus Kunststoffen, insbesondere aus Thermoplasten, aus Weichmetallen, insbesondere aus Aluminium oder Kupfer oder Aluminium- und/oder Kupferlegierungen, und/oder aus Stahl und/oder aus Kombinationen dieser Materialien. In einer Ausführungsform besteht das Anschlusselement zumindest teilweise aus Kunststoffen, insbesondere aus Thermoplasten, aus Weichmetallen, insbesondere aus Aluminium oder Kupfer oder Aluminium- und/oder Kupferlegierungen, und/oder aus Stahl und/oder aus Kombinationen dieser Materialien besteht. In einer Ausführungsform ist das Strangelement und/oder das Anschlusselement mit Kunststoffen, mit Lack, mit Metallen, insbesondere mit Nickel, Zinn, Zink, Silber, beschichtet. Die genannten Maßnahmen haben den vorteilhaften Effekt, die Leitfähigkeit, insbesondere den Übergangs- und Gesamtwiderstand und/oder die Korrosionsbeständigkeit, Festigkeitseigenschaften und/oder Fließeigenschaften des hergestellten Werkstücks weiter zu verbessern.In one embodiment, the strand element consists at least partially of plastics, in particular thermoplastics, of soft metals, in particular of aluminum or copper or aluminum and/or copper alloys, and/or of steel and/or of combinations of these materials. In one embodiment, the connection element consists at least partially of plastics, in particular thermoplastics, of soft metals, in particular of aluminum or copper or aluminum and/or copper alloys, and/or of steel and/or of combinations of these materials. In one embodiment, the strand element and/or the connection element is/are coated with plastics, with paint, with metals, in particular with nickel, tin, zinc, silver. The measures mentioned have the advantageous effect of further improving the conductivity, in particular the transition and overall resistance and/or the corrosion resistance, strength properties and/or flow properties of the workpiece produced.
In einer Ausführungsform bildet das Paar von Kehlungen der Presseinsätze ein Sechseck. Dies ist insbesondere vorteilhaft für Kabel mit einer gewissen Dicke, die bei der Montage fixiert werden sollen.In one embodiment, the pair of flutes of the dies form a hexagon. This is particularly advantageous for cables with a certain thickness that are to be fixed during assembly.
In einer Ausführungsform weist das System weiterhin ein Schweißwerkzeug zur stoffschlüssigen Verbindung von dem Strangelement und dem Anschlusselement auf. Dies ermöglicht eine Verbindung mit höchster Qualität, sowohl unter mechanischen als auch unter elektrischen Aspekten. Dabei geschieht das Schweißen bei einigen Typen von Schweißwerkzeugen unter hohen Druck. Die verwendete Axialkraft kann dabei beispielsweise größer als 1 kN, insbesondere größer als 10 kN, sein. Durch ein erfindungsgemäßes System wird gewährleistet, dass durch die Umformung, z.B. durch das geschilderte Crimp-Verfahren, eine Verbindung mit derart hoher Qualität produziert wurde, dass damit die auftretenden Schweißprozesskräfte zu keinem Bruch oder zu keiner Verschlechterung der Verbindung führen. In einer Ausführungsform wird als Schweißverfahren ein Pressverbindungsschweißprozess, wie z.B. das Punktreibschweißen, verwendet. Dadurch wird vorteilhafterweise ein sehr kompaktes Schweißgefüge geschaffen.In one embodiment, the system also has a welding tool for the integral connection of the strand element and the connecting element. This enables a connection of the highest quality, both mechanically and electrically. At this time, welding occurs on some types of welding tools under high pressure. The axial force used can, for example, be greater than 1 kN, in particular greater than 10 kN. A system according to the invention ensures that the reshaping, for example the described crimping process, produces a connection of such high quality that the welding process forces that occur do not result in breakage or deterioration of the connection. In one embodiment, a pressure connection welding process, such as spot friction welding, is used as the welding method. This advantageously creates a very compact welded structure.
In einer Ausführungsform wird der Anschlag mittels einer Schließfeder geschlossen. Dies ist insbesondere vorteilhaft, wenn der Anschlag Teil einer Maschine ist, mit der das Crimp-Verfahren vollautomatisch oder teilautomatisch durchgeführt wird; denn damit kann sehr einfach, z.B. zur Entnahme, das Werkstück freigegeben werden und beim Herstellungsprozess wieder geschlossen werden.In one embodiment, the stop is closed by means of a closing spring. This is particularly advantageous when the stop is part of a machine with which the crimping process is carried out fully automatically or semi-automatically; because this allows the workpiece to be released very easily, e.g. for removal, and closed again during the manufacturing process.
In einer Ausführungsform wird das Paar von Aufnahmeelementen durch die Backen oder den Backenaufsatz des Schraub- oder Spannstocks angetrieben. Dabei kann nur eine der Backen beweglich ausgeführt sein. Damit können auf reproduzierbare Weise große Kräfte bei dem Umformvorgang angewandt werden.In one embodiment, the pair of receiving elements is driven by the jaws or jaw attachment of the vise or vise. In this case, only one of the jaws can be designed to be movable. This means that large forces can be used in the forming process in a reproducible manner.
In einer Ausführungsform ist mindestens eine Seite des Schraub- oder Spannstocks in eine Werkzeugeinheit integriert, welche entlang einer Gleitstange bewegt wird. Damit ist eine einfache und wirkungsvolle Integration in den Herstellungsprozess möglich.In one embodiment, at least one side of the vise or vise is integrated into a tool unit that is moved along a slide bar. This enables simple and effective integration into the manufacturing process.
In einer Ausführungsform weist das System ein weiteres Spannelement auf, welches geeignet ist, das Strangelement aufzunehmen und insbesondere zusammen mit der Werkzeueinheit bewegt wird. Dies verbessert den Herstellungsprozess weiter, weil damit das exakte Fixieren des Werkstücks zu Beginn des Herstellungsprozesses ermöglicht oder zumindest vereinfacht wird.In one embodiment, the system has a further clamping element, which is suitable for accommodating the string element and is in particular moved together with the tool unit. This further improves the manufacturing process because it enables or at least simplifies the exact fixing of the workpiece at the beginning of the manufacturing process.
In einer vorteilhaften Ausgestaltung ist vorgesehen, dass eine Haltevorrichtung als Teil des Aufnahmeelements zur Aufnahme des Strangelements dient und eine korrespondierend auf der Werkzeugeinheit angeordnete Matrize zur Positionierung und Ausrichtung des Anschlusselements relativ zum Strangelement vorgesehen ist. Die Haltevorrichtung und die korrespondierend angeordnete Matrize sind horizontal und/oder vertikal relativ zueinander mittels mindestens eines Ausgleichselements verschiebbar gelagert. Des Weiteren weist die Matrize einen Spannhaken auf, der korrespondierend zu einer Lasche des Anschlusselements ausgefertigt ist und damit die Positionierung und Ausrichtung des Anschlusselements mittels der Bewegung des Spannhakens erlaubt.In an advantageous embodiment, it is provided that a holding device is used as part of the receiving element for receiving the line element and a correspondingly arranged die on the tool unit is provided for positioning and aligning the connection element relative to the line element. The holding device and the Correspondingly arranged dies are mounted such that they can be displaced horizontally and/or vertically relative to one another by means of at least one compensating element. Furthermore, the die has a clamping hook, which is made to correspond to a tab of the connecting element and thus allows the positioning and alignment of the connecting element by means of the movement of the clamping hook.
In einer Ausführungsform weist das Anschlusselement eine Lasche auf. Die Lasche kann als Schraublasche ausgeführt sein. Die Lasche kann eine Öffnung aufweisen. Derartige Anschlusselemente mit Lasche werden für viele Anwendungen, beispielsweise in der Industrie oder Fahrzeugtechnik benötigt. Für diese Art von Anschlusselementen kann eine Ausführungsform des Spannbügels gewählt werden, bei welcher der Anschlag die Kehlung des Spannbügels nicht vollständig verschließt, sondern welcher geeignet ist, einen vorspringenden Teil des Anschlusselements über das Anschlusselement hinausragen zu lassen.In one embodiment, the connecting element has a tab. The lug can be designed as a screw lug. The tab may have an opening. Such connection elements with tabs are required for many applications, for example in industry or automotive engineering. For this type of connection elements, an embodiment of the clamp can be selected in which the stop does not completely close the groove of the clamp, but which is suitable for allowing a protruding part of the connection element to protrude beyond the connection element.
In einer Ausführungsform weist das System eine Kühlung und/oder eine Vorwärmung auf. Damit kann die Prozessstabilität und/oder die Werkzeugstandzeit verbessert werden. Darüber hinaus kann eine Kühlung und/oder eine Vorwärmung des Werkstücks die Crimp- und/oder die Schweißeigenschaften verbessern, beispielsweise kann damit für jede Materialkombination von Strangelement und Anschlusselement die optimale Prozesstemperatur eingestellt und beibehalten werden. In einer Ausführungsform kann die Vorwärmung für die Unterstützung der Umformung genutzt werden, beispielsweise bei Werkstücken, die Thermoplaste aufweisen.In one embodiment, the system has cooling and/or preheating. This can improve process stability and/or tool life. In addition, cooling and/or preheating the workpiece can improve the crimping and/or welding properties, for example the optimal process temperature can be set and maintained for each material combination of strand element and connection element. In one embodiment, the preheating can be used to support the forming, for example in the case of workpieces that have thermoplastics.
Die Erfindung umfasst auch ein Verfahren zur Herstellung einer mechanischen (kraftschlüssigen und je nach Wahl/Formgebung des Presseinsatzes zugleich formschlüssigen) Verbindung zwischen einem Strangelement und einem Anschlusselement. Dabei werden Komponenten verwendet, wie sie oben spezifiziert wurden. Gemäß dem Verfahren wird das Strangelement mit dem Anschlusselement an einem Anschlag eines Spannbügels angeordnet. Dabei wird das Werkstück nach dem Einlegen in das System so an dem Anschlag angeordnet, dass das Anschlusselement direkt an dem Anschlag anliegt. Dies verbessert die Reproduzierbarkeit und/oder Qualität der Herstellung. Abschließend wird eine stoffschlüssige Verbindung von dem Strangelement und dem Anschlusselement mittels eines Schweißwerkzeuges erzeugt. Dies ermöglicht eine Verbindung mit höchster Qualität, sowohl unter mechanischen als auch unter elektrischen Aspekten. Dabei geschieht das Schweißen bei einigen Typen von Schweißwerkzeugen unter hohen Druck. Die verwendete Axialkraft kann dabei beispielsweise größer als 1 kN, insbesondere größer als 10 kN, sein. Durch das genannte Verfahren wird gewährleistet, dass durch die Umformung, z.B. durch das geschilderte Crimp-Verfahren, eine Verbindung mit derart hoher Qualität produziert wurde, dass damit die auftretenden Schweißprozesskräfte zu keinem Bruch der Verbindung führen.The invention also includes a method for producing a mechanical (non-positive and, depending on the choice/shaping of the press insert, at the same time positive) connection between a strand element and a connection element. Components are used as specified above. According to the method, the line element is arranged with the connecting element on a stop of a clamping bracket. After being placed in the system, the workpiece is arranged on the stop in such a way that the connection element is in direct contact with the stop. This improves the reproducibility and/or quality of manufacture. Finally, a material connection between the line element and the connection element is produced by means of a welding tool. This enables a connection of the highest quality, both mechanically and electrically. In the process, welding happens to some Types of welding tools under high pressure. The axial force used can, for example, be greater than 1 kN, in particular greater than 10 kN. The method mentioned ensures that the reshaping, for example by the crimping method described, produces a connection of such high quality that the welding process forces that occur do not result in the connection breaking.
In einer Ausführungsform wird das Strangelement so in dem Anschlusselement angeordnet, dass ein vordefinierter Abstand zwischen einem ersten Ende des Strangelements und der Innenseite der Stirnseite des Anschlusselements verbleibt. Damit kann eine Ausdehnung, z.B. aufgrund von thermischen Effekten, des Strangelements bei der Herstellung kompensiert werden, so dass das Strangelement während der Herstellung sich nicht in dem Anschlusselement bewegt und damit die Verbindung verschlechtert. In einer Ausführungsform kann auch ein Anschlag für die Litze (das Strangelement) vorgesehen sein.In one embodiment, the line element is arranged in the connection element in such a way that a predefined distance remains between a first end of the line element and the inside of the end face of the connection element. In this way, an expansion, e.g. due to thermal effects, of the line element can be compensated for during production, so that the line element does not move in the connection element during production and thus deteriorate the connection. In one embodiment, a stop for the strand (the strand element) can also be provided.
In einer vorteilhaften Ausgestaltung des Verfahrens ist vorgesehen, dass ein Paar von Presseinsätzen um einen mittleren Bereich des Anschlusselements angeordnet wird. Der mittlere Bereich des Anschlusselements kann dabei das mittlere Drittel umfassen, er kann sich aber auch bis zu einem Ende des Anschlusselements erstrecken.In an advantageous embodiment of the method, it is provided that a pair of press inserts is arranged around a central area of the connection element. The middle area of the connection element can include the middle third, but it can also extend to one end of the connection element.
Es hat sich ebenfalls als vorteilhaft erwiesen das Strangelement und das Anschlusselement vertikal und/oder horizontal gegeneinander zu verschieben, bis eine optimale Positionierung und Ausrichtung des Anschlusselements relativ zum Strangelement vorliegt.It has also proven to be advantageous to move the line element and the connection element vertically and/or horizontally in relation to one another until the connection element is optimally positioned and aligned relative to the line element.
Des Weiteren ist vorteilhaft vorgesehen, zumindest einen Teil des Systems, des Strangelements und/oder des Anschlusselements während des Umformprozesses und/oder während des nachfolgenden Schweißprozesses zu kühlen und/oder vorzuwärmen. Hierdurch werden zu große Temperaturunterschieden zwischen den einzelnen Komponenten des Systems bzw. des Strangelements oder des Anschlusselements während des Crimp- und/oder die Schweißprozesses vermieden und damit die Prozessqualität und die Verbindungseigenschaften zwischen dem Strangelement und dem Anschlusselement verbessert.Furthermore, it is advantageously provided to cool and/or preheat at least part of the system, the strand element and/or the connecting element during the forming process and/or during the subsequent welding process. This avoids excessive temperature differences between the individual components of the system or the strand element or the connection element during the crimping and/or welding process and thus improves the process quality and the connection properties between the strand element and the connection element.
Nachfolgend wird ein vorteilhaftes Ausführungsbeispiel der Erfindung unter Bezugnahme auf die begleitenden Figuren erläutert. Es zeigen:
- Fig. 1a
- die schematische Darstellung einer Ausführungsform eines Presseinsatzes;
- Fig. 1b
- die schematische Darstellung einer Ausführungsform eines Aufnahmeelements;
- Fig. 1c
- die schematische Darstellung einer Ausführungsform eines Spannbügels;
- Fig. 2a
- die schematische Darstellung einer Ausführungsform eines Systems, das mittels eines Schraub- oder Spannstocks realisiert wurde;
- Fig. 2b
- ein geschlossener Schraub- oder Spannstock am Ende des Umformungsprozesses;
- Fig. 3
- die schematische Explosionszeichnung einer Ausführungsform des Systems mit einer Matrize und einer Haltevorrichtung.
- Fig. 1a
- the schematic representation of an embodiment of a press insert;
- Fig. 1b
- the schematic representation of an embodiment of a receiving element;
- 1c
- the schematic representation of an embodiment of a clamping bracket;
- Figure 2a
- the schematic representation of an embodiment of a system that was realized by means of a vise or vise;
- Figure 2b
- a closed vise or vise at the end of the forming process;
- 3
- the schematic exploded view of an embodiment of the system with a die and a holding device.
In einer Ausführungsform der
Die Figuren sind lediglich schematische Darstellungen und dienen nur der Erläuterung der Erfindung. Gleiche oder gleichwirkende Elemente sind durchgängig mit den gleichen Bezugszeichen versehen.The figures are only schematic representations and only serve to explain the invention. Elements that are the same or have the same effect are provided with the same reference symbols throughout.
- 1010
- Systemsystem
- 100100
- Rohr, Leitung, LeitungsbündelPipe, line, bundle of lines
- 110110
- erstes Ende des Rohrsfirst end of the tube
- 150150
- Anschlusselementconnection element
- 155155
- mittlerer Bereich des Anschlusselementsmiddle area of the connecting element
- 157157
- Stirnseiteface
- 158158
- Laschetab
- 200200
- Aufnahmeelementreceiving element
- 210210
- Stirnseiteface
- 215215
- Kehlungthroat
- 230230
- Schachtshaft
- 290290
- Adapterplatteadapter plate
- 300300
- Presseinsatzpress insert
- 310310
- Stirnseiteface
- 315315
- Kehlungthroat
- 400400
- Spannbügelclamp
- 420420
- erste Seitefirst page
- 450450
- Anschlagattack
- 460460
- Schließfederclosing spring
- 490490
- weiteres Spannelementanother clamping element
- 500500
- Schraub- oder SpannstockVice or vise
- 510510
- Ausgleichselementcompensation element
- 520520
- Backen oder BackenaufsatzJaws or jaw attachment
- 530530
- Schlittenlaufbahnsled track
- 540540
- Spannelementclamping element
- 550550
- Werkzeugeinheittool unit
- 560560
- Kühl- oder Vorwärmsystemcooling or preheating system
- 570570
- Gleitstangeslide bar
- 580580
- Matrizedie
- 585585
- Spannhakentension hook
- 590590
- Haltevorrichtungholding device
- 600600
- Schweißwerkzeugwelding tool
Claims (14)
- System (10) configured to produce a mechanical connection between a strand element (100) and a connection element (150), having:- a pair of receiving elements (200), wherein each receiving element (200) has a face side(210) with a groove (215) which is suitable for receiving the connection element (150), and has a shaft (230),- a clamping bracket (400) with a face side (410) which has a groove (415) which is suitable for receiving the connection element (150), and has a stop (450) which is arranged on a first side (420) of the clamping bracket (400),- a pair of pressing inserts (300), wherein each pressing insert (300) has a face side (310) with a groove (315) which extends over the entire narrow side of the face side, and wherein the pressing insert (300) is configured to be arranged in the shaft (230) of an assigned receiving element (200), and, when the pressing insert (300) is arranged in the shaft (230), the groove (315) of the pressing insert (300) is substantially aligned with the groove (215) of the receiving element (200),- a screw vice or clamp vice (500), wherein the receiving elements (200) and the pressing inserts (300) are arranged in the screw vice or clamp vice (500) so that, when the connection is produced, the system (10) receives the strand element (100) with the connection element (150), which is arranged on a first end of the strand element (100), up to the stop (450) and arranges the pair of pressing inserts (300) around a middle region (155) of the connection element (150).
- System (10) according to Claim 1,wherein the strand element (100) consists at least partially of plastics, in particular of thermoplastics, of soft metals, in particular of aluminium or copper or aluminium alloys and/or copper alloys, and/or of steel and/or of combinations of said materials,the connection element (150) consists at least partially of plastics, in particular of thermoplastics, of soft metals, in particular of aluminium or copper or aluminium alloys and/or copper alloys, and/or of steel and/or of combinations of said materials, andthe strand element (100) and/or the connection element (150) are/is coated with plastics, with lacquer, with metals, in particular with nickel, tin, zinc, silver.
- System (10) according to either of the preceding claims,
wherein the pair of grooves (215) of the pressing inserts (300) form a polygon, in particular a hexagon. - System (10) according to either of the preceding claims,
wherein the system (10) furthermore has a welding tool (600) for materially bonded connection of the strand element (100) and the connection element (150) . - System (10) according to one of the preceding claims,
wherein the pair of receiving elements (200) is able to be driven by the jaws (520) or the jaw attachment of the screw vice or clamp vice (500). - System (10) according to Claim 5,
wherein at least one jaw side of the screw vice or clamp vice (500) is integrated into a tool unit (550) which is movable along a slide rod (570) relative to a second tool unit (550). - System (10) according to Claim 6,
wherein a holding device (590) serves as part of the receiving element (200) for receiving the strand element (100) and a matrix (580) arranged correspondingly on the tool unit (550) serves for positioning and orienting the connection element (150) relative to the strand element (100). - System (10) according to Claim 7,
wherein the holding device (590) and the correspondingly arranged matrix (580) are mounted so as to be displaceable horizontally and/or vertically relative to one another by means of at least one compensation element (510). - System (10) according to either of Claims 7 and 8, wherein the matrix (580) has a clamping hook (585) corresponding to a tab (158) of the connection element (150) and thus permits the positioning and orientation of the connection element (150) by means of the movement of the clamping hook (585).
- System (10) according to one of the preceding claims,
wherein the system (10) furthermore has a cooling system and/or a pre-heating system (560) by way of which at least parts of the system (10), the strand element (100) and/or the connection element (150) can be heated or cooled during the forming process and/or during the subsequent welding process. - Method for producing a mechanical connection between a strand element (100) and a connection element (150) using a system according to Claim 1, comprising the steps of- arranging the strand element (100) with the connection element (150), which is arranged on a first end (110) of the strand element (100), on the stop (450) of the clamping bracket (400);- arranging the pair of pressing inserts (300) around a middle region (155) of the connection element (150);- connecting the strand element (100) and the connection element (150) in a materially bonded manner by means of a welding tool (600).
- Method according to Claim 11,
wherein the strand element (100) is arranged in the connection element (150) in such a way that a predefined spacing remains between a first end (110) of the strand element (100) and the inner side (156) of the face side (157) of the connection element (150) . - Method according to either of Claims 11 and 12,
wherein the strand element (100) and the connection element (150) are displaced vertically and/or horizontally with respect to one another until there is an optimal positioning and orientation of the connection element (150) relative to the strand element (100). - Method according to one of Claims 11 to 13, comprising the further step of:- cooling or heating at least a part of the system (10), the strand element (100) and/or the connection element (150) during the forming process and/or during the subsequent welding process.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2018/100608 WO2020007383A1 (en) | 2018-07-04 | 2018-07-04 | Production of press-fit and crimp connections in a vice |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3818600A1 EP3818600A1 (en) | 2021-05-12 |
EP3818600B1 true EP3818600B1 (en) | 2023-02-15 |
Family
ID=62975811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18742909.7A Active EP3818600B1 (en) | 2018-07-04 | 2018-07-04 | Production of press-fit and crimp connections in a vice |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210273395A1 (en) |
EP (1) | EP3818600B1 (en) |
CN (1) | CN112449734B (en) |
WO (1) | WO2020007383A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6152435A (en) * | 1998-07-31 | 2000-11-28 | Lloyd D. Snell | Multi-diameter vise clamp and collet jaw |
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DE412678C (en) * | 1922-03-08 | 1925-04-24 | Hans Johannsen | Device for driving metal caps on rope ends |
GB601670A (en) * | 1944-11-03 | 1948-05-11 | William James Streader | An improved method and apparatus for attaching connections to stranded cables |
US2480280A (en) * | 1945-09-24 | 1949-08-30 | Thomas & Betts Corp | Electric connector |
GB710974A (en) * | 1952-01-09 | 1954-06-23 | Roe A V & Co Ltd | Improved means for securing ferrules upon the ends of electrical conductors |
NL204977A (en) * | 1955-03-02 | |||
NL133572C (en) * | 1964-03-11 | |||
US3931671A (en) * | 1974-09-30 | 1976-01-13 | Amp Incorporated | Terminal locator and retainer device |
US4019236A (en) * | 1975-12-31 | 1977-04-26 | Amp Incorporated | Crimping press clamp for electrical connectors |
US4214121A (en) * | 1978-03-03 | 1980-07-22 | Charneski Mitchell D | Electrical joint compound |
US5353623A (en) * | 1994-04-15 | 1994-10-11 | Bobenhausen Larry F | Portable elastomeric hose crimping tool |
US5625942A (en) * | 1995-06-09 | 1997-05-06 | The Whitaker Corporation | Precision crimping tool |
US5720197A (en) * | 1996-03-08 | 1998-02-24 | Aeroquip Corporation | Crimper assembly |
ES2258592T3 (en) * | 2002-11-30 | 2006-09-01 | Keller, Elke | PROCEDURE FOR WELDING BY COMPACTION AND COMPACTING MACHINE. |
US7196268B2 (en) * | 2004-08-17 | 2007-03-27 | Ilsco Corporation | Self sealing electrical connector |
DE102004063056A1 (en) * | 2004-12-22 | 2006-07-13 | Fröhlich, Bernhard | Method for connecting individual wires of cable end to sleeve of contact pin or contact socket etc., with stripped cable end inserted into sleeve |
DE102010005841B4 (en) * | 2010-01-26 | 2011-12-08 | Auto-Kabel Managementgesellschaft Mbh | Cable lug with cup-shaped formation and fastening device |
JP5741502B2 (en) * | 2011-07-26 | 2015-07-01 | 株式会社オートネットワーク技術研究所 | Electric wire with terminal and manufacturing method thereof |
CN104662738B (en) * | 2012-08-09 | 2017-03-01 | 线缆***集团总公司 | The mechanically and electrically method of interfacing electrical conductors |
CN104901035B (en) * | 2015-06-30 | 2017-11-17 | 国家电网公司 | The method of cable branch box/ring main unit parallel connection network access |
US20170054261A1 (en) * | 2015-08-21 | 2017-02-23 | United States Of America As Represented By The Secretary Of The Navy | Low Loss Shielded Cable Splice Ferrule System |
US10454232B2 (en) * | 2016-05-04 | 2019-10-22 | Te Connectivity Corporation | Terminal locator for a terminal crimping device |
CN106299956B (en) * | 2016-09-21 | 2019-02-26 | 许继集团有限公司 | Sub-connecting switch of transformer quickly crimps special equipment with body lead |
EP3312949B1 (en) * | 2016-10-24 | 2019-09-04 | Wezag GmbH Werkzeugfabrik | Crimping tool positioner and method for manufacturing a crimping tool positioner |
-
2018
- 2018-07-04 EP EP18742909.7A patent/EP3818600B1/en active Active
- 2018-07-04 US US17/257,612 patent/US20210273395A1/en active Pending
- 2018-07-04 CN CN201880095258.0A patent/CN112449734B/en active Active
- 2018-07-04 WO PCT/DE2018/100608 patent/WO2020007383A1/en active Application Filing
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US6152435A (en) * | 1998-07-31 | 2000-11-28 | Lloyd D. Snell | Multi-diameter vise clamp and collet jaw |
Also Published As
Publication number | Publication date |
---|---|
CN112449734B (en) | 2022-09-13 |
EP3818600A1 (en) | 2021-05-12 |
WO2020007383A1 (en) | 2020-01-09 |
CN112449734A (en) | 2021-03-05 |
US20210273395A1 (en) | 2021-09-02 |
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