EP0904614B1 - Device for crimping of metal lugs in mass production and tool assembly therefor - Google Patents

Device for crimping of metal lugs in mass production and tool assembly therefor Download PDF

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Publication number
EP0904614B1
EP0904614B1 EP97928335A EP97928335A EP0904614B1 EP 0904614 B1 EP0904614 B1 EP 0904614B1 EP 97928335 A EP97928335 A EP 97928335A EP 97928335 A EP97928335 A EP 97928335A EP 0904614 B1 EP0904614 B1 EP 0904614B1
Authority
EP
European Patent Office
Prior art keywords
crimping
block
supporting
anvil
tool holder
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.)
Expired - Lifetime
Application number
EP97928335A
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German (de)
French (fr)
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EP0904614A1 (en
Inventor
Francis Pelissie
Dominique Rocayries
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Sierma Ingenierie
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Sierma Ingenierie
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Publication date
Application filed by Sierma Ingenierie filed Critical Sierma Ingenierie
Publication of EP0904614A1 publication Critical patent/EP0904614A1/en
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/0488—Crimping apparatus or processes with crimp height adjusting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/055—Crimping apparatus or processes with contact member feeding mechanism

Definitions

  • the invention relates to a device for crimping of metal lugs on electric wires to insulating sheath, one end of which has been previously stripped according to the definition given in the preamble of claim 1.
  • mini-applicators which are mounted on crimping presses conventional with the sole fixed to the fixed table of the press and the tool holder attached to the slide or nose of the hurry.
  • mini-applicators allow the manufacturing in series of metal lugs semi-automatically, a worker placing the wires one by one on the front anvil press operation.
  • the entire device "mini-applicator” is changed with each change of manufacturing. So, for each pod model and for each model or wire diameter, it is necessary to disassemble all of the previous mini-applicator and reassemble on the press a new mini-applicator whose crimping imprints correspond to terminal models and crimp wire.
  • the invention aims to overcome these disadvantages by proposing the same crimping device able to carry out manufacturing - particularly in series - of different models of metal lugs. So, the invention aims to propose a crimping device which is not dedicated to a single pod model and a single wire model and therefore does not have to be dismantled each time change of manufacturing, in particular with each model of wire.
  • the invention also aims to provide a crimping device with which the change of wire model can be automated, i.e. made automatically by a robot, or performed by the operator of the press, without requiring the intervention of a specialized maintenance mechanic.
  • the invention also aims to reduce the investment cost required for crimping a pod model on wires of different diameters and models, both with regard to the cost of tooling itself than the cost necessary for its storage and handling.
  • the invention also aims to avoid delicate handling and losses due to errors in handling.
  • the invention relates to a crimping device as mentioned above, and which is characterized by the characterizing part of claim 1.
  • At least one block of matrix support (s) and at least one support block anvil (s) - and preferably each of these blocks - forming a set of crimping tools for crimping of a pod model are associated with each other in a autonomous assembly, called cassette, adapted so that these blocks can be assembled and disassembled together with respect to the tool holder and the sole.
  • the matrix support block (s) and anvil support block (s) are associated with each other by two columns assembly, adapted to allow their movements translation translational in the direction of approximation of crimping impressions, but limiting their movements relative translation in the direction of spacing at a value greater than or equal to that of their spacing maximum when attached to the tool holder and sole.
  • the removable rigid fixing means of each anvil to the sole include a dovetail type assembly or equivalent, in particular whose axis extends parallel to the crimping axis.
  • the fixing means rigid removable from each die to the tool holder include an assembly screw for each die, and preference of the die support block (s) to the tool holder - in particular a screw extending parallel to the axis of crimping cooperating with a corresponding thread fitted in the tool holder.
  • the matrix support block (s) and / or support block anvil (s) includes means for continuously adjusting the position of a first and / or a second impression of crimping in the direction of translation of the tool holder.
  • the automatic means of feeding include means for adjusting the position of the strip and therefore lugs, along the crimping axis.
  • the device also includes means for continuously adjusting the position of the tool holder in relation to a slide press in the direction of translation relative to the sole.
  • the invention also relates to a cassette of tools for a crimping device according to the invention.
  • a cassette according to the invention is characterized in that it comprises a support block for matrix (s) and anvil support block (s) associated one with the other in an autonomous assembly and adapted to be able be assembled and disassembled together with respect to the device.
  • a cassette according to the invention is characterized in that it comprises in combination all or part of the characteristics described above in relation to crimping device.
  • the invention also relates to a crimping device and tool cassette comprising in combination all or part of features mentioned above or below.
  • the invention relates to a device for crimping in series of metal lugs on wires electrical (not shown in the figures) with sheath insulating, one end of which has been previously stripped.
  • This crimping device of the so-called mini-applicator type includes a sole 1 adapted to be fixed on a fixed table of a press (not shown); a tool holder 2 of crimping adapted to be mounted integral in translation of a press slide (not shown); automatic means 3 for feeding and cutting lugs successively one by one from a strip of identical preformed metal lugs 4.
  • the strip 4 is therefore formed of a string of pods linked together and which adjoin each other.
  • Each terminal is intended to be compressed between at least a first crimping imprint 5 defined by at least one 6-crimping anvil fixed by sole 1, and at least one second imprint of crimping 7 defined by at least one matrix of crimping 8 carried by the tool holder 2.
  • the first 5 and second (s) 7 crimping impressions have forms which are conjugated and adapted to crimp a terminal with a wire from a terminal preformed strip 4.
  • Each terminal is clamped between these footprints and around said end of the wire in a axis 9 known as crimping axis 9, corresponding to the direction wire placed between these prints.
  • the tool holder 2 is assembled integral in translation relative to the slide by means 10 conventional assemblies, but which include means 11 for continuously adjusting the position of the tool holder 2 relative to the slide in the direction of translation of the tool holder 2 and of the slide relative to at sole 1 and at the press table.
  • These means 11 of adjustment include for example two wedges with spans inclined in contact, displaced relative to each other perpendicular to the axis of translation of the tool holder 2 thanks to a knurled screw and whose thread cooperates with a thread on one of the shims and rests on the other wedge or on a part secured to the tool holder 2 (figure 4).
  • These adjustment means 11 allow a continuous adjustment of the vertical position of the tool holder 2 compared to the press slide, and therefore allow adapt and adjust this position according to the press slide stroke, from bottom dead center of the press, and relative positions between the imprints 5, 7, i.e. between each matrix 8 and the anvil 6 corresponding.
  • Tool holder 2 is guided in translation vertical along the axis of the press with respect to the sole 1 thanks to lateral stirrups 12 fixedly mounted on the sole 1 and surrounding and guiding the tool holder 2. From in this way, the tool holder 2 is guided in translation by relative to sole 1 so as to be moved with the slide movements in alternative movements approximation and separation from the sole 1.
  • the tool holder 2 carries a control finger 13, suitable for pressing and moving in translation a rod 14 of a control distributor of a cylinder 15 of the automatic feeding means 3.
  • the finger 13 actuates the control rod 14 when the tool holder 2 is in the separated position, that is to say in the high position, thus controlling the supply a portion of tape 4.
  • Each matrix 8 is formed of a plate associated vertical and carried by the same block 16 support die (s), and the tool holder 2 comprises a housing 17 of reception of a block 16 matrix support (s).
  • Block 16 support of matrix (s) is globally parallelepiped, like the receiving housing 17.
  • a screw 18 is associated to block 16 matrix support (s) so as to present a through thread that can be engaged in a thread an integral part in translation of the tool holder 2, by example the control finger 13 in the embodiment shown in Figure 4.
  • Each anvil 6 is carried by the same block 19 anvil support (s) and the sole 1 defines a base 20 for receiving such a block 19 support anvil (s).
  • Block 16 matrix support (s) and block 19 anvil support (s), forming a single set of crimping for crimping a terminal model, i.e. with first 5 and second fingerprints fingerprints 7 of crimping of conjugated forms, are associated with each other in an autonomous assembly 21, said tool cassette 21, adapted so that these blocks 16, 19 can be assembled and disassembled together with respect to device, i.e. respectively with respect to tool holder 2 and relative to the sole 1.
  • block 16 support for matrix (s) and block 19 support anvil (s) are associated with each other by two columns assembly 22 extending parallel to the direction of translation of the tool holder 2, that is to say vertically.
  • the assembly columns 22 are engaged in corresponding holes in the support block 19 anvil (s), so as to be rigidly fixed to this block 19, at least when the latter is in the fixed position and mounted on the base 20 of the sole 1.
  • the lower end of each column 22 is engaged in a hole in block 19 and fixed by a screw 23 with a head the end of which is screwed into a thread in the column 22, this screw 23 being engaged by the lower end drilling the block 19 anvil support (s).
  • Block 16 matrix support (s) includes a vertical through hole for guiding the block of matrix support with respect to each column 22. This drilling is provided in a square 24 extending horizontally backwards.
  • the upper end of each column 22 is provided with a head 25 limiting the relative translational movement in the direction of the upward spacing of the block 16 matrix support (s), relative to block 19 anvil support (s), at a value greater than or equal to that of their maximum spacing defined between the tool holder 2 and the sole 1, when these two blocks 16, 19 are fixed there. So when the crimping cassette 21 carrying the crimping tools is removed from the device ( Figures 1, 7 and 8), both columns 22 hold the two blocks 16, 19 together preventing their relative disassembly.
  • Block 19 anvil support (s) is simply assembled and removably attached to the base 20 the sole 1 by a dovetail type assembly, axis parallel to the crimping axis 9.
  • the block 19 anvil support includes a male dovetail 26 and the base 20 includes a female dovetail 27.
  • This assembly 26, 27 with dovetail makes it possible to place each anvil 6 and each matrix 8 in the vertical plane containing the crimping axis 9 and the vertical axis of translation 28 of the tool holder 2 relative to the sole 1.
  • a transverse axial locking screw of the assembly to dovetail can be provided.
  • Position in translation of the set of the crimping cassette 21 along the axis 9 of crimping is determined by the rear faces 29 of the block 16 support of matrix (s) and 30 of block 19 support anvil (s) which come into abutment and bear against vertical faces of the tool holder 2, respectively of a support 31 of the stirrups 12 secured to the sole 1.
  • the block 16 matrix support (s) has a horizontal upper face 52 abutting and bearing against a horizontal face of the housing 17 of the tool holder 2.
  • the anvil support block 19 rests on the sole 1.
  • the screw 18 for removable fixing of the block 16 of matrix support extends parallel to the axis of crimping 9 and makes it possible to block the entire cassette 21 for crimping in the mounted position relative to the device.
  • Block 16 matrix support (s) includes further means 32, 33 for continuously adjusting the position of at least one crimping die 8 and therefore a first crimping imprint, depending on the direction vertical translation of the tool holder 2.
  • These means 32, 33 have a wedge 32 with inclined reach coming to the contact of the upper end of the die 8, and a screw 33 with knurled head whose thread is engaged in a thread through shim 32 to determine the transverse position with respect to the matrix 8.
  • the position of the shim 32 is modified relative to matrix 8, which has the effect of moving vertically in translation this matrix 8 relative to the block 16 matrix support.
  • the matrix 8 includes at least one oblong vertical light 34 crossed by fixing screws 35 of the dies 8 relative to the block 16 matrix support (s).
  • This vertical light 34 is adapted to allow vertical adjustment in translation of the matrix 8 relative to the block 16 support of matrix (s).
  • Each tool cassette 21 can comprise one or more matrices 8, for example a first die crimping the terminal around the core conductor of the wire, and a second adjacent matrix for crimping the terminal around the end of the sheath wire insulator.
  • each block 19 anvil support can carry one or more anvils 6, namely by example an anvil for crimping the terminal around of the bare core of the electric wire and a second anvil for crimping the terminal around the end of the wire sheath.
  • the cassette 21 also includes a device 36 making it possible to cut the strip of lugs, after its displacement transverse, for the separation of each terminal placed along the crimping axis.
  • this strip cutting device can be mounted integral with the means 3 supply and therefore carried by the entire device and by the sole 1 (and not by the cassette 21).
  • Dies 8 are assembled on the block 16 by one or more clamping screws 35.
  • the dies 8 and fingerprints 7 can be formed by the block 16 itself in one piece shaped for this purpose.
  • Anvils 6 can be assembled on block 19. In the embodiment shown, the anvils 6 and the footprints 5 are formed by block 19 itself in one only part conformed for this purpose.
  • the crimping cassette 21 therefore constitutes a set of crimping tools that can be previously settled (thanks in particular to means 32, 33 of adjustment) and which is mounted and dismounted on the simply crimping with a single screw 18.
  • the assembly and disassembly of each crimping cassette 21 is therefore extremely simple and fast. It is therefore possible to have as many crimping cassettes 21 as there are has models of wires to crimp on the same type of terminal, and this with a single mini-crimping device.
  • the cassettes having been previously adjusted, the change of manufacturing can be carried out without additional adjustment guaranteeing consistent quality.
  • Each crimping cassette 21 is advantageously provided with a location 37 allowing register or affix an identification plate model of wire and / or terminal to be crimped.
  • Housing 17 for receiving block 16 matrix support (s) on the tool holder 2 and this block 16 matrix support (s), are suitable to define them a space 38 above the square 24 for the passage of upper parts of columns 22 during movements of lowering (reconciliation of impressions) of the tool holder 2.
  • this space 38 is provided at the rear of block 16 and above the matrix support from square 24, so that even in position lower completely close to the two blocks 16, 19, the upper ends of the columns 22 do not exceed beyond the upper face of the block 16 support of matrix (s).
  • the height of each of the 16 support blocks matrix (s), whatever the corresponding terminal model, is preferably adapted so that the height of the space 38 corresponds to the maximum possible stroke of the different models of blocks 16 matrix supports.
  • the cylinder 15 of the automatic means 3 feed and cut includes a jack body 39 carried by the sole 1 and an actuating rod 40 arranged perpendicular to the crimping axis 9.
  • a pawl 41 is carried by the actuating rod 40 and is adapted to train the band 4 in its movements towards the crimping axis 9 and not to drive it in direction reverse, i.e. when the end of the rod actuator 40 moves away from the crimping axis 9.
  • this pawl 41 simply consists of a part in the form of a latch bolt which is anchored under the strip 4 (in each of the perforations provided for this purpose in band 4 or against each terminal) when it gets closer of the crimping pin 9 and can slide under the strip 4 in reverse.
  • the actuating rod 40 also carries a part 42 which extends parallel to the body 39 of the cylinder on the front side of the crimping device and brings to its free end, a screw 43 for the end of travel stop of the actuating rod 40.
  • This stop screw 43 is worn by tapping an axis perpendicular to the axis of crimp 9 formed in the part 42, and the end of this stop screw 43 abuts against a bearing surface 44 integral with the jack body 39.
  • this screw 43 limits the displacement stroke of the actuating rod 40 towards the crimping axis 9.
  • the position of this limit stop, and therefore the amplitude of the advance of the strip 4 that is to say the length of the portion of strip fed perpendicular to the axis of crimping 9, at each cycle, when the tool holder returns to the high position so that this length corresponds exactly to a terminal.
  • the stop screw 43 is placed opposite a body side 39 cylinder and towards the front of the device so that it is easily accessible. In addition, the transverse dimensions of the device is minimized.
  • the part 44 forming a bearing against which the screw 43 comes into abutment is mounted like the cylinder body 39 on a support 45 which is itself assembled at the sole 1 by screws.
  • the position of the support 45 bearing all of the automatic feeding means 3 is determined in relation to sole 1 thanks to a rib 47 of the support 45 engaged in a groove 48 of the sole 1, arranged parallel to the crimping axis and the dovetail assembly of the cassette 21.
  • the rib 47 and the groove 48 form means for adjusting the position of the strip along the crimping axis 9.
  • a strip guide plate 49 is provided above the strip for prevent it from being raised when the pawl 41 is moved, and to ensure its guidance between the imprints 5, 7.
  • a rotary button 46 allows the plate to be lifted slightly 49 for the introduction of strip 4.
  • Each cassette 21 is advantageously also equipped with a plate 50 forming a support stop vertical in close crimping position and a stripper 51 (shown only in Figure 2).
  • automatic means 3 strip feed can be pneumatic and / or mechanical and / or electromechanical, can be arranged on the left or right or towards the rear of the tool holder 2.
  • Other means of removable attachment of the dies 8 and / or anvils 6 and / or each cassette 21 of crimping can be provided.
  • the crimping device according to the invention can be of semi-automatic type, that is to say implemented by an operator who places manually the end of the wire intended to receive the terminal between the fingerprints before operating the press. Alternatively, it can also be fully automated, the end of the wire being placed between the imprints by a automation such as a robot.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

A device for crimping a series of metal lugs on electric wires with an insulating sheath of which one end has been partially stripped off, wherein each crimping block (6) is secured to a plate (1) by releasable attachment means (26, 27); and each crimping die (8) is secured to the tool holder (2) by releasable attachment means (18), said releasable attachment means (18, 26, 27) being suitable for attaching one or more blocks (6) and matrices (8) having a variety of shapes and/or sizes. A tool assembly (21) for use with such a crimping device is also disclosed.

Description

L'invention concerne un dispositif de sertissage de cosses métalliques sur des fils électriques à gaine isolante dont une extrémité a été préalablement dénudée selon la définition donnée dans le préambule de la revendication 1.The invention relates to a device for crimping of metal lugs on electric wires to insulating sheath, one end of which has been previously stripped according to the definition given in the preamble of claim 1.

On connaít déjà (FR-A-2 643 514) de tels dispositifs de sertissage, généralement dénommés "mini-applicateurs" qui sont montés sur des presses de sertissage conventionnelles avec la semelle fixée à la table fixe de la presse et le porte-outil fixé au coulisseau ou nez de la presse. Ces mini-applicateurs permettent la fabrication en séries de cosses métalliques de manière semi-automatique, un ouvrier plaçant les fils un à un sur l'enclume avant l'actionnement de la presse. Pour des questions de qualité de fabrication et pour éviter la nécessité d'avoir à effectuer des réglages délicats, l'ensemble du dispositif "mini-applicateur" est changé à chaque changement de fabrication. Ainsi, pour chaque modèle de cosse et pour chaque modèle ou diamètre de fil, il est nécessaire de démonter l'ensemble du mini-applicateur précédent et de remonter sur la presse un nouveau mini-applicateur dont les empreintes de sertissage correspondent aux modèles de cosse et de fil à sertir.We already know (FR-A-2 643 514) such crimping devices, generally called "mini-applicators" which are mounted on crimping presses conventional with the sole fixed to the fixed table of the press and the tool holder attached to the slide or nose of the hurry. These mini-applicators allow the manufacturing in series of metal lugs semi-automatically, a worker placing the wires one by one on the front anvil press operation. For quality issues to avoid the need to have to make delicate adjustments, the entire device "mini-applicator" is changed with each change of manufacturing. So, for each pod model and for each model or wire diameter, it is necessary to disassemble all of the previous mini-applicator and reassemble on the press a new mini-applicator whose crimping imprints correspond to terminal models and crimp wire.

Ces opérations de démontage et de montage du mini-applicateur sur la presse sont elles-mêmes longues et délicates. En particulier, ces opérations ne peuvent pas être automatisées et doivent être effectuées manuellement par un ouvrier mécanicien de maintenance spécialisée. Regarder à ce propos le document EP-A-0 583 223. Il est nécessaire de disposer d'un mini-applicateur complet, coûteux, pour chaque modèle de cosse et de fil. Egalement, l'ensemble de tous les mini-applicateurs de sertissage représente un encombrement important nécessitant des surfaces de stockage spécifiques à proximité de l'atelier de sertissage. La manutention des mini-applicateurs relativement lourds et encombrants pose donc des problèmes et doit être effectuée avec de grandes précautions, compte tenu de la fragilité et du prix de chaque mini-applicateur.These disassembly and assembly operations of the mini-applicator on the press are themselves long and delicate. In particular, these operations cannot be automated and must be done manually by a specialized maintenance mechanic worker. See in this connection document EP-A-0 583 223. It it is necessary to have a complete mini-applicator, expensive, for each model of terminal and wire. Also, all of the mini crimping applicators represents a significant congestion requiring specific storage areas near the workshop crimping. Handling mini-applicators relatively heavy and bulky therefore poses problems and should be performed with great care, account given the fragility and price of each mini-applicator.

L'invention vise à pallier ces inconvénients en proposant un même dispositif de sertissage apte à effectuer la fabrication -notamment en séries- de différents modèles de cosses métalliques. Ainsi, l'invention vise à proposer un dispositif de sertissage qui n'est pas dédié à un seul modèle de cosse et à un seul modèle de fil et qui n'a donc pas à être démonté à chaque changement de fabrication, notamment à chaque modèle de fil.The invention aims to overcome these disadvantages by proposing the same crimping device able to carry out manufacturing - particularly in series - of different models of metal lugs. So, the invention aims to propose a crimping device which is not dedicated to a single pod model and a single wire model and therefore does not have to be dismantled each time change of manufacturing, in particular with each model of wire.

L'invention vise également à proposer un dispositif de sertissage avec lequel le changement de modèle de fil peut être automatisé, c'est-à-dire réalisé automatiquement par un robot, ou effectué par l'opérateur de la presse, sans nécessiter l'intervention d'un mécanicien de maintenance spécialisée.The invention also aims to provide a crimping device with which the change of wire model can be automated, i.e. made automatically by a robot, or performed by the operator of the press, without requiring the intervention of a specialized maintenance mechanic.

L'invention vise également à diminuer le coût d'investissement nécessaire pour le sertissage d'un modèle de cosse sur des fils de différents diamètres et modèles, tant en ce qui concerne le coût de l'outillage lui-même que le coût nécessaire à son stockage et à sa manutention.The invention also aims to reduce the investment cost required for crimping a pod model on wires of different diameters and models, both with regard to the cost of tooling itself than the cost necessary for its storage and handling.

L'invention vise également à éviter les manutentions délicates et les pertes dues à des erreurs de manutention.The invention also aims to avoid delicate handling and losses due to errors in handling.

Pour ce faire, l'invention concerne un dispositif de sertissage tel que mentionné ci-dessus, et qui est caractérisé par la partie caractérisante de la revendication 1.To do this, the invention relates to a crimping device as mentioned above, and which is characterized by the characterizing part of claim 1.

Ainsi, grâce à l'invention, il est possible de changer l'outillage (matrice(s) et/ou enclume(s)), en fonction du modèle de fil, sans pour autant avoir à démonter l'ensemble du dispositif de sertissage de la presse. Thus, thanks to the invention, it is possible to change the tooling (matrix (s) and / or anvil (s)), function of the wire model, without having to disassemble the entire crimping device from the hurry.

Selon l'invention, au moins un bloc de support de matrice(s) et au moins un bloc de support d'enclume(s) -et de préférence chacun de ces blocs-formant un jeu d'outils de sertissage pour le sertissage d'un modèle de cosse, sont associés l'un à l'autre en un assemblage autonome, dit cassette, adapté pour que ces blocs puissent être montés et démontés ensemble par rapport au porte-outil et à la semelle.According to the invention, at least one block of matrix support (s) and at least one support block anvil (s) - and preferably each of these blocks - forming a set of crimping tools for crimping of a pod model, are associated with each other in a autonomous assembly, called cassette, adapted so that these blocks can be assembled and disassembled together with respect to the tool holder and the sole.

En particulier, et selon l'invention, le bloc support de matrice(s) et le bloc support d'enclume(s) sont associés l'un à l'autre par deux colonnes d'assemblage, adaptées pour autoriser leurs mouvements relatifs de translation dans le sens du rapprochement des empreintes de sertissage, mais limitant leurs mouvements relatifs de translation dans le sens de l'écartement à une valeur supérieure ou égale à celle de leur écartement maximum lorsqu'ils sont fixés au porte-outil et à la semelle.In particular, and according to the invention, the matrix support block (s) and anvil support block (s) are associated with each other by two columns assembly, adapted to allow their movements translation translational in the direction of approximation of crimping impressions, but limiting their movements relative translation in the direction of spacing at a value greater than or equal to that of their spacing maximum when attached to the tool holder and sole.

Ainsi, le changement des outils de sertissage est extrêmement simple, peut être effectué par l'opérateur de la presse, voire même automatiquement par un robot.So changing the tools crimping is extremely simple, can be done by the press operator, or even automatically by a robot.

Avantageusement et selon l'invention, les moyens de fixation rigide amovible de chaque enclume à la semelle comprennent un assemblage du type à queue d'aronde ou équivalent, -notamment dont l'axe s'étend parallèlement à l'axe de sertissage-. En outre, les moyens de fixation rigide amovible de chaque matrice au porte-outil comprennent une vis d'assemblage de chaque matrice, et de préférence du bloc support de matrice(s) au porte outil - notamment une vis s'étendant parallèlement à l'axe de sertissage coopérant avec un taraudage correspondant aménagé dans le porte-outil-. Advantageously and according to the invention, the removable rigid fixing means of each anvil to the sole include a dovetail type assembly or equivalent, in particular whose axis extends parallel to the crimping axis. In addition, the fixing means rigid removable from each die to the tool holder include an assembly screw for each die, and preference of the die support block (s) to the tool holder - in particular a screw extending parallel to the axis of crimping cooperating with a corresponding thread fitted in the tool holder.

Avantageusement et selon l'invention, le bloc support de matrice(s) et/ou le bloc support d'enclume(s) comporte des moyens de réglage continu de la position d'une première et/ou d'une deuxième empreinte de sertissage selon la direction de translation du porte-outil.Advantageously and according to the invention, the matrix support block (s) and / or support block anvil (s) includes means for continuously adjusting the position of a first and / or a second impression of crimping in the direction of translation of the tool holder.

En outre, avantageusement et selon l'invention, les moyens automatiques d'alimentation et de découpe sont disposés pour déplacer la bande à chaque cycle de cosses perpendiculairement à l'axe de sertissage, et comportent :

  • un vérin comprenant un corps de vérin porté par la semelle et une tige d'actionnement disposée perpendiculairement à l'axe de sertissage,
  • un cliquet porté par la tige d'actionnement et adapté pour entraíner la bande lors de ses mouvements vers l'axe de sertissage et pour ne pas l'entraíner en sens inverse,
  • et une vis de butée de fin de course de la tige d'actionnement, cette vis de butée étant portée par un taraudage d'axe perpendiculaire à l'axe de sertissage, ménagé dans une pièce portée par la tige d'actionnement, l'extrémité de cette vis de butée venant en butée contre une portée solidaire du corps du vérin et limitant la course de déplacement de la tige d'actionnement vers l'axe de sertissage. La vis de butée est placée en regard d'un côté du corps de vérin et à l'avant du dispositif, et constitue des moyens de réglage de l'amplitude de l'avance de la bande, et donc de la longueur de portion de bande (correspondant à une cosse) alimentée perpendiculairement à l'axe de sertissage à chaque cycle.
In addition, advantageously and according to the invention, the automatic supply and cutting means are arranged to move the strip at each cycle of lugs perpendicular to the crimping axis, and comprise:
  • a jack comprising a jack body carried by the sole and an actuating rod arranged perpendicular to the crimping axis,
  • a pawl carried by the actuating rod and adapted to drive the strip during its movements towards the crimping axis and not to drive it in the opposite direction,
  • and an end of travel stop screw of the actuating rod, this stop screw being carried by a thread with an axis perpendicular to the crimping axis, formed in a part carried by the actuating rod, the end of this abutment screw abutting against a bearing secured to the body of the jack and limiting the displacement travel of the actuating rod towards the crimping axis. The stop screw is placed opposite one side of the cylinder body and at the front of the device, and constitutes means for adjusting the amplitude of the advance of the strip, and therefore the portion length of strip (corresponding to a terminal) supplied perpendicular to the crimping axis during each cycle.

Egalement, avantageusement et selon l'invention, les moyens automatiques d'alimentation comprennent des moyens de réglage de la position de la bande et donc des cosses, selon l'axe de sertissage.Also, advantageously and according to the invention, the automatic means of feeding include means for adjusting the position of the strip and therefore lugs, along the crimping axis.

Avantageusement et selon l'invention, le dispositif comprend aussi des moyens de réglage continu de la position du porte-outil par rapport à un coulisseau de presse selon la direction de translation par rapport à la semelle.Advantageously and according to the invention, the device also includes means for continuously adjusting the position of the tool holder in relation to a slide press in the direction of translation relative to the sole.

L'invention concerne aussi une cassette d'outils pour un dispositif de sertissage selon l'invention. Une cassette selon l'invention est caractérisée en ce qu'elle comprend un bloc support de matrice(s) et un bloc support d'enclume(s) associés l'un à l'autre en un assemblage autonome et adaptés pour pouvoir être montés et démontés ensemble par rapport au dispositif. En outre, une cassette selon l'invention est caractérisée en ce qu'elle comprend en combinaison tout ou partie des caractéristiques décrites ci-dessus en relation au dispositif de sertissage.The invention also relates to a cassette of tools for a crimping device according to the invention. A cassette according to the invention is characterized in that it comprises a support block for matrix (s) and anvil support block (s) associated one with the other in an autonomous assembly and adapted to be able be assembled and disassembled together with respect to the device. In addition, a cassette according to the invention is characterized in that it comprises in combination all or part of the characteristics described above in relation to crimping device.

L'invention concerne également un dispositif de sertissage et une cassette d'outils comprenant en combinaison tout ou partie des caractéristiques mentionnées ci-dessus ou ci-après.The invention also relates to a crimping device and tool cassette comprising in combination all or part of features mentioned above or below.

D'autres caractéristiques, buts et avantages de l'invention apparaítront à la lecture de la description suivante d'un de ces modes de réalisation préférentiels, et qui se réfèrent aux figures annexées, dans lesquelles :

  • la figure 1 est une vue schématique en perspective représentant un dispositif selon l'invention avec la cassette d'outils représentée démontée hors du dispositif,
  • la figure 2 est une vue schématique en élévation avec des détails en coupe partielle d'un dispositif de sertissage selon l'invention,
  • la figure 3 est une vue schématique représentant un dispositif de sertissage selon l'invention avec le porte-outil en coupe axiale et les moyens automatiques d'alimentation, la semelle et le bloc support d'enclume(s) en élévation,
  • la figure 4 est une vue en coupe selon la ligne IV - IV de la figure 2,
  • la figure 5 est une vue en coupe selon la ligne V - V de la figure 3,
  • la figure 6 est une vue en coupe selon la ligne VI - VI de la figure 5.
  • la figure 7 est une vue schématique en élévation d'une cassette d'outils selon l'invention,
  • la figure 8 est une vue schématique en coupe verticale de la cassette de la figure 7.
Other characteristics, objects and advantages of the invention will appear on reading the following description of one of these preferred embodiments, and which refer to the appended figures, in which:
  • FIG. 1 is a schematic perspective view showing a device according to the invention with the tool cassette shown removed from the device,
  • FIG. 2 is a schematic elevation view with details in partial section of a crimping device according to the invention,
  • FIG. 3 is a schematic view showing a crimping device according to the invention with the tool holder in axial section and the automatic feeding means, the sole and the anvil support block (s) in elevation,
  • FIG. 4 is a sectional view along the line IV - IV of FIG. 2,
  • FIG. 5 is a sectional view along the line V - V of FIG. 3,
  • FIG. 6 is a sectional view along the line VI - VI of FIG. 5.
  • FIG. 7 is a schematic elevation view of a tool cassette according to the invention,
  • FIG. 8 is a schematic view in vertical section of the cassette in FIG. 7.

L'invention concerne un dispositif de sertissage en séries de cosses métalliques sur des fils électriques (non représentés sur les figures) à gaine isolante dont une extrémité a été préalablement dénudée. Ce dispositif de sertissage, de type dit mini-applicateur comprend une semelle 1 adaptée pour être fixée sur une table fixe d'une presse (non représentée) ; un porte-outil 2 de sertissage adapté pour pouvoir être monté solidaire en translation d'un coulisseau (non représenté) de presse ; des moyens 3 automatiques d'alimentation et de découpe des cosses successivement une à une à partir d'une bande de cosses métalliques préformées identiques 4. La bande 4 est donc formée d'un chapelet de cosses liées entre elles et qui se jouxtent. Chaque cosse est destinée à être comprimée entre au moins une première empreinte 5 de sertissage définie par au moins une enclume de sertissage 6 portée fixe par la semelle 1, et au moins une deuxième empreinte de sertissage 7 définie par au moins une matrice de sertissage 8 portée par le porte-outil 2. Les première(s) 5 et deuxième(s) 7 empreintes de sertissage présentent des formes qui sont conjuguées l'une de l'autre et adaptées pour sertir une cosse par un fil à partir d'une cosse préformée de la bande 4. Chaque cosse est serrée entre ces empreintes et autour de ladite extrémité du fil selon un axe 9 dit axe 9 de sertissage, correspondant à la direction du fil placé entre ces empreintes .The invention relates to a device for crimping in series of metal lugs on wires electrical (not shown in the figures) with sheath insulating, one end of which has been previously stripped. This crimping device, of the so-called mini-applicator type includes a sole 1 adapted to be fixed on a fixed table of a press (not shown); a tool holder 2 of crimping adapted to be mounted integral in translation of a press slide (not shown); automatic means 3 for feeding and cutting lugs successively one by one from a strip of identical preformed metal lugs 4. The strip 4 is therefore formed of a string of pods linked together and which adjoin each other. Each terminal is intended to be compressed between at least a first crimping imprint 5 defined by at least one 6-crimping anvil fixed by sole 1, and at least one second imprint of crimping 7 defined by at least one matrix of crimping 8 carried by the tool holder 2. The first 5 and second (s) 7 crimping impressions have forms which are conjugated and adapted to crimp a terminal with a wire from a terminal preformed strip 4. Each terminal is clamped between these footprints and around said end of the wire in a axis 9 known as crimping axis 9, corresponding to the direction wire placed between these prints.

Le porte-outil 2 est assemblé solidaire en translation par rapport au coulisseau grâce à des moyens d'assemblage 10 conventionnels, mais qui comprennent des moyens de réglage 11 continus de la position du porte-outil 2 par rapport au coulisseau selon la direction de translation du porte-outil 2 et du coulisseau par rapport à la semelle 1 et à la table de la presse. Ces moyens 11 de réglage comprennent par exemple deux cales à portées inclinées en contact, déplacées l'une par rapport à l'autre perpendiculairement à l'axe de translation du porte-outil 2 grâce à une vis à tête moletée et dont le filetage coopère avec un taraudage de l'une des cales et prend appui sur l'autre cale ou sur une pièce solidaire du porte-outil 2 (figure 4).The tool holder 2 is assembled integral in translation relative to the slide by means 10 conventional assemblies, but which include means 11 for continuously adjusting the position of the tool holder 2 relative to the slide in the direction of translation of the tool holder 2 and of the slide relative to at sole 1 and at the press table. These means 11 of adjustment include for example two wedges with spans inclined in contact, displaced relative to each other perpendicular to the axis of translation of the tool holder 2 thanks to a knurled screw and whose thread cooperates with a thread on one of the shims and rests on the other wedge or on a part secured to the tool holder 2 (figure 4).

Ces moyens 11 de réglage permettent un réglage continu de la position verticale du porte-outil 2 par rapport au coulisseau de presse, et permettent donc d'adapter et de régler cette position en fonction de la course du coulisseau de presse, du point mort bas de la presse, et des positions relatives entre les empreintes 5, 7, c'est-à-dire entre chaque matrice 8 et l'enclume 6 correspondantes.These adjustment means 11 allow a continuous adjustment of the vertical position of the tool holder 2 compared to the press slide, and therefore allow adapt and adjust this position according to the press slide stroke, from bottom dead center of the press, and relative positions between the imprints 5, 7, i.e. between each matrix 8 and the anvil 6 corresponding.

Le porte-outil 2 est guidé en translation verticale selon l'axe de la presse par rapport à la semelle 1 grâce à des étriers latéraux 12 montés fixes sur la semelle 1 et entourant et guidant le porte-outil 2. De la sorte, le porte-outil 2 est guidé en translation par rapport à la semelle 1 de façon à être déplacé avec les mouvements du coulisseau selon des mouvements alternatifs de rapprochement et d'écartement par rapport à la semelle 1.Tool holder 2 is guided in translation vertical along the axis of the press with respect to the sole 1 thanks to lateral stirrups 12 fixedly mounted on the sole 1 and surrounding and guiding the tool holder 2. From in this way, the tool holder 2 is guided in translation by relative to sole 1 so as to be moved with the slide movements in alternative movements approximation and separation from the sole 1.

Les moyens 3 automatiques d'alimentation et de découpe alimentent une cosse de la bande 4 à chaque cycle entre les empreintes 5, 7 et la place en vue de son sertissage selon l'axe 9 de sertissage. Ces moyens 3 sont synchronisés par rapport aux mouvements du porte-outil 2 par rapport à la semelle 1, de sorte qu'une portion de bande 4 correspondant à une cosse est alimentée entre les empreintes lors de l'écartement, en vue de la découpe et du sertissage de la cosse lors du rapprochement subséquent desdites empreintes 5, 7.3 automatic means of feeding and cutters feed a strip lug 4 each cycle between the imprints 5, 7 and the place for its crimping along the crimping axis 9. These means 3 are synchronized with the movements of the tool holder 2 with respect to sole 1, so that a portion of strip 4 corresponding to a terminal is supplied between the fingerprints during spacing, for cutting and crimping of the terminal during the subsequent approximation of said fingerprints 5, 7.

Pour ce faire, le porte-outil 2 porte un doigt 13 de commande, adapté pour appuyer et déplacer en translation une tige 14 d'un distributeur de commande d'un vérin 15 des moyens 3 automatiques d'alimentation. De préférence, le doigt 13 actionne la tige 14 de commande lorsque le porte-outil 2 est en position écartée, c'est-à-dire en position haute, commandant ainsi l'alimentation d'une portion de bande 4.To do this, the tool holder 2 carries a control finger 13, suitable for pressing and moving in translation a rod 14 of a control distributor of a cylinder 15 of the automatic feeding means 3. Of preferably, the finger 13 actuates the control rod 14 when the tool holder 2 is in the separated position, that is to say in the high position, thus controlling the supply a portion of tape 4.

Chaque matrice 8 est formée d'une plaque verticale associée et portée par un même bloc 16 support de matrice(s), et le porte-outil 2 comporte un logement 17 de réception d'un bloc 16 support de matrice(s). Le bloc 16 support de matrice(s) est globalement parallépipèdique, comme le logement de réception 17. Une vis 18 est associée au bloc 16 support de matrice(s) de façon à présenter un filetage débouchant pouvant être engagé dans un taraudage d'une pièce solidaire en translation du porte-outil 2, par exemple le doigt 13 de commande dans le mode de réalisation représenté figure 4.Each matrix 8 is formed of a plate associated vertical and carried by the same block 16 support die (s), and the tool holder 2 comprises a housing 17 of reception of a block 16 matrix support (s). Block 16 support of matrix (s) is globally parallelepiped, like the receiving housing 17. A screw 18 is associated to block 16 matrix support (s) so as to present a through thread that can be engaged in a thread an integral part in translation of the tool holder 2, by example the control finger 13 in the embodiment shown in Figure 4.

Chaque enclume 6 est portée par un même bloc 19 support d'enclume(s) et la semelle 1 définit une embase 20 de réception d'un tel bloc 19 support d'enclume(s).Each anvil 6 is carried by the same block 19 anvil support (s) and the sole 1 defines a base 20 for receiving such a block 19 support anvil (s).

Le bloc 16 support de matrice(s) et le bloc 19 support d'enclume(s), formant un même jeu d'outils de sertissage pour le sertissage d'un modèle de cosse, c'est-à-dire portant des premières empreintes 5 et deuxièmes empreintes 7 de sertissage de formes conjuguées, sont associés l'un à l'autre en un assemblage autonome 21, dit cassette d'outils 21, adapté pour que ces blocs 16, 19 puissent être montés et démontés ensemble par rapport au dispositif, c'est-à-dire respectivement par rapport au porte-outil 2 et par rapport à la semelle 1. Pour ce faire, le bloc 16 support de matrice(s) et le bloc 19 support d'enclume(s) sont associés l'un à l'autre par deux colonnes d'assemblage 22 s'étendant parallèlement à la direction de translation du porte-outil 2, c'est-à-dire verticalement. Les colonnes 22 d'assemblage sont engagées dans des perçages correspondants ménagés dans le bloc 19 support d'enclume(s), de façon à être fixées rigidement à ce bloc 19, au moins lorsque celui-ci est en position fixée et montée sur l'embase 20 de la semelle 1. Pour ce faire, l'extrémité inférieure de chaque colonne 22 est engagée dans un perçage du bloc 19 et fixée par une vis 23 à tête dont l'extrémité est vissée dans un taraudage de la colonne 22, cette vis 23 étant engagée par l'extrémité inférieure du perçage du bloc 19 support d'enclume(s).Block 16 matrix support (s) and block 19 anvil support (s), forming a single set of crimping for crimping a terminal model, i.e. with first 5 and second fingerprints fingerprints 7 of crimping of conjugated forms, are associated with each other in an autonomous assembly 21, said tool cassette 21, adapted so that these blocks 16, 19 can be assembled and disassembled together with respect to device, i.e. respectively with respect to tool holder 2 and relative to the sole 1. To do this, block 16 support for matrix (s) and block 19 support anvil (s) are associated with each other by two columns assembly 22 extending parallel to the direction of translation of the tool holder 2, that is to say vertically. The assembly columns 22 are engaged in corresponding holes in the support block 19 anvil (s), so as to be rigidly fixed to this block 19, at least when the latter is in the fixed position and mounted on the base 20 of the sole 1. To do this, the lower end of each column 22 is engaged in a hole in block 19 and fixed by a screw 23 with a head the end of which is screwed into a thread in the column 22, this screw 23 being engaged by the lower end drilling the block 19 anvil support (s).

Le bloc 16 support de matrice(s) comprend un perçage traversant vertical pour le guidage du bloc de support de matrice par rapport à chaque colonne 22. Ce perçage est ménagé dans une équerre 24 s'étendant horizontalement vers l'arrière. L'extrémité supérieure de chaque colonne 22 est dotée d'une tête 25 limitant le mouvement relatif de translation dans le sens de l'écartement vers le haut du bloc 16 support de matrice(s), par rapport au bloc 19 support d'enclume(s), à une valeur supérieure ou égale à celle de leur écartement maximum definie entre le porte-outil 2 et la semelle 1, lorsque ces deux blocs 16, 19 y sont fixés. Ainsi, lorsque la cassette de sertissage 21 portant les outils de sertissage est démontée du dispositif (figures 1, 7 et 8), les deux colonnes 22 maintiennent ensemble les deux blocs 16, 19 en empêchant leur démontage relatif. Au contraire, lorsque la cassette de sertissage est montée et fixée dans le dispositif, le bloc 16 étant fixé dans le porte-outil 2 et le bloc 19 étant fixé sur la semelle 1, les mouvements de translation et le guidage relatif du bloc 16 support de matrice(s) par rapport au bloc 19 support d'enclume(s) est essentiellement assuré par le guidage du porte-outil 23 par rapport à la semelle 1, c'est-à-dire par les étriers 12, ainsi que par les mouvements du coulisseau de presse. En conséquence, on comprend que l'assemblage relatif des blocs 16, 19 et des colonnes 22 présente un certain jeu aussi bien dans le sens de la translation que dans les directions transversales et n'a pas à être réalisé de façon précise. Ces jeux doivent être en tout cas suffisants pour éviter que les colonnes 22 ne gênent le guidage en translation verticale du porte-outil 2 et des matrices 8 par rapport à la semelle 1 et aux enclumes 6. Block 16 matrix support (s) includes a vertical through hole for guiding the block of matrix support with respect to each column 22. This drilling is provided in a square 24 extending horizontally backwards. The upper end of each column 22 is provided with a head 25 limiting the relative translational movement in the direction of the upward spacing of the block 16 matrix support (s), relative to block 19 anvil support (s), at a value greater than or equal to that of their maximum spacing defined between the tool holder 2 and the sole 1, when these two blocks 16, 19 are fixed there. So when the crimping cassette 21 carrying the crimping tools is removed from the device (Figures 1, 7 and 8), both columns 22 hold the two blocks 16, 19 together preventing their relative disassembly. On the contrary, when the crimping cassette is mounted and fixed in the device, the block 16 being fixed in the tool holder 2 and the block 19 being fixed on the sole 1, the movements of translation and relative guidance of block 16 support matrix (s) relative to block 19 anvil support (s) is essentially provided by the guide of the tool holder 23 by relative to the sole 1, that is to say by the stirrups 12, as well as by the movements of the press slide. In consequence, we understand that the relative assembly of the blocks 16, 19 and columns 22 presents some play too both in the direction of the translation than in the directions transverse and does not have to be carried out precisely. These games must in any case be sufficient to avoid the columns 22 do not hinder the guiding in translation vertical of the tool holder 2 and of the dies 8 with respect to sole 1 and anvils 6.

Le bloc 19 support d'enclume(s) est simplement assemblé et fixé de façon amovible à l'embase 20 de la semelle 1 par un assemblage de type à queue d'aronde, d'axe parallèle à l'axe de sertissage 9. Par exemple, le bloc 19 support d'enclume comprend une queue d'aronde mâle 26 et l'embase 20 comporte une queue d'aronde femelle 27. Cet assemblage 26, 27 à queue d'aronde permet de placer chaque enclume 6 et chaque matrice 8 dans le plan vertical contenant l'axe de sertissage 9 et l'axe vertical de translation 28 du porte-outil 2 par rapport à la semelle 1. Une vis transversale de blocage axial de l'assemblage à queue d'aronde peut être prévue. La position en translation de l'ensemble de la cassette 21 de sertissage selon l'axe 9 de sertissage est déterminée par les faces arrières 29 du bloc 16 support de matrice(s) et 30 du bloc 19 support d'enclume(s) qui viennent en butée et en appui contre des faces verticales du porte-outil 2, respectivement d'un support 31 des étriers 12 solidaire de la semelle 1. Egalement, le bloc 16 support de matrice(s) présente une face supérieure horizontale 52 venant en butée et en appui contre une face horizontale du logement 17 du porte-outil 2. Le bloc 19 support d'enclume(s) repose sur la semelle 1.Block 19 anvil support (s) is simply assembled and removably attached to the base 20 the sole 1 by a dovetail type assembly, axis parallel to the crimping axis 9. For example, the block 19 anvil support includes a male dovetail 26 and the base 20 includes a female dovetail 27. This assembly 26, 27 with dovetail makes it possible to place each anvil 6 and each matrix 8 in the vertical plane containing the crimping axis 9 and the vertical axis of translation 28 of the tool holder 2 relative to the sole 1. A transverse axial locking screw of the assembly to dovetail can be provided. Position in translation of the set of the crimping cassette 21 along the axis 9 of crimping is determined by the rear faces 29 of the block 16 support of matrix (s) and 30 of block 19 support anvil (s) which come into abutment and bear against vertical faces of the tool holder 2, respectively of a support 31 of the stirrups 12 secured to the sole 1. Also, the block 16 matrix support (s) has a horizontal upper face 52 abutting and bearing against a horizontal face of the housing 17 of the tool holder 2. The anvil support block 19 rests on the sole 1.

La vis 18 de fixation amovible du bloc 16 de support de matrice s'étend parallèlement à l'axe de sertissage 9 et permet de bloquer l'ensemble de la cassette 21 de sertissage en position montée par rapport au dispositif.The screw 18 for removable fixing of the block 16 of matrix support extends parallel to the axis of crimping 9 and makes it possible to block the entire cassette 21 for crimping in the mounted position relative to the device.

Le bloc 16 support de matrice(s) comporte en outre des moyens 32, 33 de réglage continu de la position d'au moins une matrice 8 de sertissage et donc d'une première empreinte de sertissage, selon la direction verticale de translation du porte-outil 2. Ces moyens 32, 33 comportent une cale 32 à portée inclinée venant au contact de l'extrémité supérieure de la matrice 8, et une vis 33 à tête moletée dont le filetage est engagé dans un taraudage traversant de la cale 32 pour en déterminer la position transversale par rapport à la matrice 8. Ainsi, en tournant la vis 33, on modifie la position de la cale 32 par rapport à la matrice 8, ce qui a pour effet de déplacer verticalement en translation cette matrice 8 par rapport au bloc 16 support de matrice. En outre, la matrice 8 comprend au moins une lumière verticale oblongue 34 traversée par des vis de fixation 35 des matrices 8 par rapport au bloc 16 support de matrice(s). Cette lumière verticale 34 est adaptée pour permettre le réglage vertical en translation de la matrice 8 par rapport au bloc 16 support de matrice(s).Block 16 matrix support (s) includes further means 32, 33 for continuously adjusting the position of at least one crimping die 8 and therefore a first crimping imprint, depending on the direction vertical translation of the tool holder 2. These means 32, 33 have a wedge 32 with inclined reach coming to the contact of the upper end of the die 8, and a screw 33 with knurled head whose thread is engaged in a thread through shim 32 to determine the transverse position with respect to the matrix 8. Thus, in turning the screw 33, the position of the shim 32 is modified relative to matrix 8, which has the effect of moving vertically in translation this matrix 8 relative to the block 16 matrix support. In addition, the matrix 8 includes at least one oblong vertical light 34 crossed by fixing screws 35 of the dies 8 relative to the block 16 matrix support (s). This vertical light 34 is adapted to allow vertical adjustment in translation of the matrix 8 relative to the block 16 support of matrix (s).

Chaque cassette d'outils 21 peut comprendre une ou plusieurs matrices 8, par exemple une première matrice de sertissage de la cosse autour de l'âme conductrice du fil, et une deuxième matrice adjacente pour le sertissage de la cosse autour de l'extrémité de la gaine isolante du fil. De même, chaque bloc 19 support d'enclume peut porter une ou plusieurs enclumes 6, à savoir par exemple une enclume pour le sertissage de la cosse autour de l'âme dénudée du fil électrique et une deuxième enclume pour le sertissage de la cosse autour de l'extrémité de la gaine du fil.Each tool cassette 21 can comprise one or more matrices 8, for example a first die crimping the terminal around the core conductor of the wire, and a second adjacent matrix for crimping the terminal around the end of the sheath wire insulator. Similarly, each block 19 anvil support can carry one or more anvils 6, namely by example an anvil for crimping the terminal around of the bare core of the electric wire and a second anvil for crimping the terminal around the end of the wire sheath.

En outre, deux variantes de réalisation sont possibles. Dans la variante représentée, la cassette 21 comprend également un dispositif 36 permettant de découper la bande de cosses, après son déplacement transversal, en vue de la séparation de chaque cosse placée selon l'axe de sertissage. Dans une autre variante, ce dispositif coupe bande peut être monté solidaire des moyens 3 d'alimentation et donc porté par l'ensemble du dispositif et par la semelle 1 (et non par la cassette 21).In addition, two variant embodiments are possible. In the variant shown, the cassette 21 also includes a device 36 making it possible to cut the strip of lugs, after its displacement transverse, for the separation of each terminal placed along the crimping axis. In another variant, this strip cutting device can be mounted integral with the means 3 supply and therefore carried by the entire device and by the sole 1 (and not by the cassette 21).

Les matrices 8 sont assemblées sur le bloc 16 par une ou plusieurs vis 35 de serrage. En variante, les matrices 8 et les empreintes 7 peuvent être formées par le bloc 16 lui-même en une seule pièce conformée à cet effet. Les enclumes 6 peuvent être assemblées sur le bloc 19. Dans le mode de réalisation représenté, les enclumes 6 et les empreintes 5 sont formées par le bloc 19 lui-même en une seule pièce conformée à cet effet.Dies 8 are assembled on the block 16 by one or more clamping screws 35. Alternatively, the dies 8 and fingerprints 7 can be formed by the block 16 itself in one piece shaped for this purpose. Anvils 6 can be assembled on block 19. In the embodiment shown, the anvils 6 and the footprints 5 are formed by block 19 itself in one only part conformed for this purpose.

La cassette 21 de sertissage constitue donc un ensemble d'outils de sertissage pouvant être préalablement réglés (grâce notamment aux moyens 32, 33 de réglage) et qui est montée et démontée sur le dispositif de sertissage simplement à l'aide d'une seule vis 18. Le montage et le démontage de chaque cassette 21 de sertissage est donc extrêmement simple et rapide. Il est donc possible de disposer d'autant de cassettes 21 de sertissage qu'il y a de modèles de fils à sertir sur un même type de cosse, et ce avec un seul dispositif mini-applicateur de sertissage. Les cassettes étant préalablement réglées, le changement de fabrication peut être effectué sans réglage supplémentaire en garantissant une qualité constante. On évite le démontage du dispositif par rapport à la presse elle-même, et ce changement de cassettes 21 peut être automatisé si le dispositif est intégré dans une chaíne automatique. Aucun réglage n'est nécessaire au montage des blocs 16, 19 grâce aux surfaces d'appui ménagées par le logement 17, l'embase 20 et le support 31. Ces surfaces d'appui sont ainsi des surfaces de référence pour le positionnement des blocs 16, 19.The crimping cassette 21 therefore constitutes a set of crimping tools that can be previously settled (thanks in particular to means 32, 33 of adjustment) and which is mounted and dismounted on the simply crimping with a single screw 18. The assembly and disassembly of each crimping cassette 21 is therefore extremely simple and fast. It is therefore possible to have as many crimping cassettes 21 as there are has models of wires to crimp on the same type of terminal, and this with a single mini-crimping device. The cassettes having been previously adjusted, the change of manufacturing can be carried out without additional adjustment guaranteeing consistent quality. We avoid the disassembly of the device relative to the press itself, and this change of cassettes 21 can be automated if the device is integrated in an automatic chain. No adjustment is not necessary for mounting blocks 16, 19 thanks to the bearing surfaces provided by the housing 17, the base 20 and the support 31. These bearing surfaces are thus reference surfaces for positioning the blocks 16, 19.

Chaque cassette 21 de sertissage est avantageusement dotée d'un emplacement 37 permettant d'inscrire ou d'apposer une plaque d'identification du modèle de fil et/ou de cosse à sertir.Each crimping cassette 21 is advantageously provided with a location 37 allowing register or affix an identification plate model of wire and / or terminal to be crimped.

Le logement 17 de réception du bloc 16 support de matrice(s) sur le porte-outil 2 et ce bloc 16 support de matrice(s), sont adaptés pour définir entre eux un espace 38 au-dessus de l'équerre 24 pour le passage des parties supérieures des colonnes 22 lors des mouvements de descente (rapprochement des empreintes) du porte-outil 2. Comme on le voit sur les figures, cet espace 38 est ménagé à l'arrière du bloc 16 support de matrice(s) et au-dessus de l'équerre 24, de telle sorte que même en position inférieure complètement rapprochée des deux blocs 16, 19, les extrémités supérieures des colonnes 22 ne dépassent pas au-delà de la face supérieure du bloc 16 support de matrice(s). La hauteur de chacun des blocs 16 support de matrice(s), quel que soit le modèle de cosse correspondant, est de préférence adaptée pour que la hauteur de l'espace 38 corresponde à la course maximum possible des différents modèles des blocs 16 supports de matrice(s).Housing 17 for receiving block 16 matrix support (s) on the tool holder 2 and this block 16 matrix support (s), are suitable to define them a space 38 above the square 24 for the passage of upper parts of columns 22 during movements of lowering (reconciliation of impressions) of the tool holder 2. As can be seen in the figures, this space 38 is provided at the rear of block 16 and above the matrix support from square 24, so that even in position lower completely close to the two blocks 16, 19, the upper ends of the columns 22 do not exceed beyond the upper face of the block 16 support of matrix (s). The height of each of the 16 support blocks matrix (s), whatever the corresponding terminal model, is preferably adapted so that the height of the space 38 corresponds to the maximum possible stroke of the different models of blocks 16 matrix supports.

Le vérin 15 des moyens 3 automatiques d'alimentation et de découpe comprend un corps de vérin 39 porté par la semelle 1 et une tige d'actionnement 40 disposée perpendiculairement à l'axe 9 de sertissage. Un cliquet 41 est porté par la tige d'actionnement 40 et est adapté pour entraíner la bande 4 dans ses mouvements vers l'axe de sertissage 9 et pour ne pas l'entraíner en sens inverse, c'est-à-dire lorsque l'extrémité de la tige d'actionnement 40 s'éloigne de l'axe de sertissage 9. Par exemple, ce cliquet 41 est simplement constitué d'une pièce en forme de pêne demi-tour qui vient s'ancrer sous la bande 4 (dans chacune des perforations prévues à cet effet dans la bande 4 ou contre chaque cosse) lorsque il se rapproche de l'axe de sertissage 9 et peut glisser sous la bande 4 en sens inverse. La tige d'actionnement 40 porte également une pièce 42 qui s'étend parallèlement au corps 39 du vérin sur le côté avant du dispositif de sertissage et porte à son extrémité libre, une vis 43 de butée de fin de course de la tige d'actionnement 40. Cette vis 43 de butée est portée par un taraudage d'axe perpendiculaire à l'axe de sertissage 9 ménagé dans la pièce 42, et l'extrémité de cette vis 43 de butée vient en butée contre une portée 44 solidaire du corps de vérin 39. Ainsi, cette vis 43 limite la course de déplacement de la tige 40 d'actionnement vers l'axe de sertissage 9. En vissant ou en dévissant la vis 43 par rapport à la pièce 42, on peut régler la position de cette butée de fin de course, et donc l'amplitude de l'avance de la bande 4, c'est-à-dire la longueur de la portion de bande alimentée perpendiculairement à l'axe de sertissage 9, à chaque cycle, lorsque le porte-outil revient en position haute pour que cette longueur corresponde exactement à une cosse. Il est à noter que la vis 43 de butée est placée en regard d'un côté de corps 39 de vérin et vers l'avant du dispositif de sorte qu'elle est aisément accessible. En outre, l'encombrement transversal du dispositif est minimisé.The cylinder 15 of the automatic means 3 feed and cut includes a jack body 39 carried by the sole 1 and an actuating rod 40 arranged perpendicular to the crimping axis 9. A pawl 41 is carried by the actuating rod 40 and is adapted to train the band 4 in its movements towards the crimping axis 9 and not to drive it in direction reverse, i.e. when the end of the rod actuator 40 moves away from the crimping axis 9. By example, this pawl 41 simply consists of a part in the form of a latch bolt which is anchored under the strip 4 (in each of the perforations provided for this purpose in band 4 or against each terminal) when it gets closer of the crimping pin 9 and can slide under the strip 4 in reverse. The actuating rod 40 also carries a part 42 which extends parallel to the body 39 of the cylinder on the front side of the crimping device and brings to its free end, a screw 43 for the end of travel stop of the actuating rod 40. This stop screw 43 is worn by tapping an axis perpendicular to the axis of crimp 9 formed in the part 42, and the end of this stop screw 43 abuts against a bearing surface 44 integral with the jack body 39. Thus, this screw 43 limits the displacement stroke of the actuating rod 40 towards the crimping axis 9. By screwing or unscrewing the screw 43 relative to part 42, the position of this limit stop, and therefore the amplitude of the advance of the strip 4, that is to say the length of the portion of strip fed perpendicular to the axis of crimping 9, at each cycle, when the tool holder returns to the high position so that this length corresponds exactly to a terminal. It should be noted that the stop screw 43 is placed opposite a body side 39 cylinder and towards the front of the device so that it is easily accessible. In addition, the transverse dimensions of the device is minimized.

La pièce 44 formant portée contre laquelle la vis 43 vient en butée est montée comme le corps de vérin 39 sur un support 45 qui est lui-même assemblé à la semelle 1 par des vis. La position du support 45 portant l'ensemble des moyens 3 d'alimentation automatique est déterminée par rapport à la semelle 1 grâce à une nervure 47 du support 45 engagée dans une rainure 48 de la semelle 1, ménagée parallèlement à l'axe de sertissage et à l'assemblage à queue d'aronde de la cassette 21. La nervure 47 et la rainure 48 forment des moyens de réglage de la position de la bande selon l'axe de sertissage 9. Une plaque guide bande 49 est prévue au-dessus de la bande pour empêcher son soulèvement lors du déplacement du cliquet 41, et pour assurer son guidage entre les empreintes 5, 7. Un bouton rotatif 46 permet de soulever légèrement la plaque 49 pour l'introduction de la bande 4.The part 44 forming a bearing against which the screw 43 comes into abutment is mounted like the cylinder body 39 on a support 45 which is itself assembled at the sole 1 by screws. The position of the support 45 bearing all of the automatic feeding means 3 is determined in relation to sole 1 thanks to a rib 47 of the support 45 engaged in a groove 48 of the sole 1, arranged parallel to the crimping axis and the dovetail assembly of the cassette 21. The rib 47 and the groove 48 form means for adjusting the position of the strip along the crimping axis 9. A strip guide plate 49 is provided above the strip for prevent it from being raised when the pawl 41 is moved, and to ensure its guidance between the imprints 5, 7. A rotary button 46 allows the plate to be lifted slightly 49 for the introduction of strip 4.

Chaque cassette 21 est avantageusement équipée également d'une plaque 50 formant butée d'appui vertical en position rapprochée de sertissage et d'un dévêtisseur 51 (représenté uniquement figure 2).Each cassette 21 is advantageously also equipped with a plate 50 forming a support stop vertical in close crimping position and a stripper 51 (shown only in Figure 2).

L'invention peut faire l'objet de diverses variantes par rapport au mode de réalisation décrit et représenté. Par exemple les moyens automatiques d'alimentation 3 de la bande peuvent être pneumatiques et/ou mécaniques et/ou électromécaniques, peuvent être disposés à gauche ou à droite ou vers l'arrière du porte-outil 2. D'autres moyens de fixation amovible des matrices 8 et/ou des enclumes 6 et/ou de chaque cassette 21 de sertissage peuvent être prévus.The invention can be the subject of various variations from the described embodiment and represented. For example automatic means 3 strip feed can be pneumatic and / or mechanical and / or electromechanical, can be arranged on the left or right or towards the rear of the tool holder 2. Other means of removable attachment of the dies 8 and / or anvils 6 and / or each cassette 21 of crimping can be provided.

Le dispositif de sertissage selon l'invention peut être de type semi-automatique, c'est-à-dire mis en oeuvre par un opérateur qui place manuellement l'extrémité de fil destinée à recevoir la cosse entre les empreintes avant d'actionner la presse. En variante, il peut néanmoins également être totalement automatisé, l'extrémité de fil étant placée entre les empreintes par un automatisme tel qu'un robot.The crimping device according to the invention can be of semi-automatic type, that is to say implemented by an operator who places manually the end of the wire intended to receive the terminal between the fingerprints before operating the press. Alternatively, it can also be fully automated, the end of the wire being placed between the imprints by a automation such as a robot.

Claims (8)

  1. A device for crimping metal lugs onto electric wires with an insulating sheath of which one end has been previously stripped, of the type comprising:
    a sole plate (1) adapted so as to be attached to a fixed press platen,
    at least one crimping anvil (6) carried by, and attached to, the sole plate (1), and defining at least one first crimping cavity (5),
    a crimping tool holder (2) carrying at least one crimping die (8) defining at least one second crimping cavity (7) of which the shape is matched with that of the first cavity (5) and is adapted so as to crimp a lug gripped between the cavities and around said end of the wire along an axis (9), a so-called crimping axis, corresponding to the direction of the wire, this tool holder being adapted so that it can be mounted secured in translation to a press ram and guided in translation with respect to the sole plate (1), so as to be displaced, by and with the movements of the ram, in alternating closing and separating movements in relation to the sole plate (1) with a view to crimping,
    automatic means (3) for feeding and cutting lugs successively between said cavities (5, 7) from at least one strip (4) of preformed metal lugs, synchronized with respect to said movements of the tool holder (2) in relation to the sole plate (1), so that a lug is fed and located during separation with a view to cutting it off and is crimped onto the wire during the subsequent closing together of said cavities (5, 7), wherein:
    each crimping anvil (6) is carried by the same block (19) supporting an anvil or anvils, the sole plate (1) defining a seating (20) for receiving a block (19) supporting an anvil or anvils, and the block (19) supporting an anvil or anvils is attached to the sole plate (1) by releasable rigid means of attachment (26, 27) allowing the block (19) supporting an anvil or anvils to be demounted with respect to the sole plate (1) without the necessity of demounting the sole plate (1) with respect to the press platen,
    each crimping die (8) is carried by the same block (16) supporting a die or dies, the tool holder (2) includes a housing (17) for receiving a block (16) supporting a die or dies, and the block (16) supporting a die or dies is attached to the tool holder (2) by releasable rigid means of attachment (18) allowing the block (16) supporting an anvil or anvils to be demounted with respect to the tool holder (2) without the need for demounting the tool holder (2) with respect to the press ram,
    said blocks (16, 19) and releasable rigid means of attachment (18, 26, 27) are adapted so as to permit attachment of an anvil or anvils (6) and a die or dies (8) of various shapes and dimensions.
  2. The device as claimed in claim 1, wherein a block (16) supporting a die or dies and a block (19) supporting an anvil or anvils forming a set of crimping tools for crimping a particular type of lug, are associated with each other in a self-contained assembly (21), referred to as a tool cassette (21), adapted so that these blocks (16, 19) can be mounted and demounted together with respect to the tool holder (2) and the sole plate (1).
  3. The device as claimed in claim 2, wherein the block (16) supporting a die or dies and the block (19) supporting an anvil or anvils are associated with each other by two assembly columns (22) adapted so as to allow their relative movements in translation in the direction in which the crimping cavities (5, 7) approach each other, but limiting their relative translational movements in direction of separation to a value greater than or equal to that of their maximum separation when they are attached to the tool holder (2) and the sole plate (1).
  4. The device as claimed in one of claims 1 to 3, wherein the block (16) supporting a die or dies and/or the block (19) supporting an anvil or anvils includes means (32, 33) for continually adjusting the position of a first crimping cavity (5) and/or a second crimping cavity (7) in the direction of translation of the tool holder (2).
  5. The device as claimed in one of claims 1 to 4, wherein the releasable rigid means (26, 27) for attaching the block (19) supporting an anvil or anvils to the sole plate comprise an assembly (26, 27) of the dovetail type.
  6. The device as claimed in one of claims 1 to 5, wherein the automatic feeding and cutting means (3) are arranged so as to move the strip (4) at each cycle perpendicular to the crimping axis (9), and include:
    a jack (15) comprising a jack body (39) carried by the sole plate and an actuating rod (40) disposed perpendicular to the crimping axis (9),
    a ratchet (41) carried by the actuating rod (40) and adapted so as to drive the strip (4) when it is moved towards the crimping axis (9) and so as not to drive it in the reverse direction,
    and a stop screw (43) limiting the travel of the actuating rod (40), this stop screw (43) being carried by a tapped thread with an axis perpendicular to the crimping axis provided in a part (42) carried by the actuating rod (40), the end of this stop screw (43) butting up against a bearing surface (44) integral with the body (39) of the jack (15) and limiting the extent of the travel of the actuating rod (40) towards the crimping axis,
    and wherein the stop screw (43) is placed facing a side of the body (39) of the jack (15) and in front of the device, and constitutes means (43) for regulating the amplitude of the advance of the strip (4), and hence of the length of the portion of the strip fed perpendicular to the crimping axis (9) at each cycle.
  7. The device as claimed in one of claims 1 to 6, wherein it includes means (11) for continuously adjusting the position of the tool holder (2) in relation to a press ram in the direction of translation with respect to the sole plate (1).
  8. A tool cassette for the crimping device as claimed in one of claims 1 to 7, wherein it comprises a block (16) supporting a die or dies and a block (19) supporting an anvil or anvils associated with each other in a self-contained assembly and adapted so that they can be mounted and demounted together with respect to the device.
EP97928335A 1996-06-12 1997-06-11 Device for crimping of metal lugs in mass production and tool assembly therefor Expired - Lifetime EP0904614B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9607471 1996-06-12
FR9607471A FR2749797B1 (en) 1996-06-12 1996-06-12 CRIMPING DEVICE OF METAL TERMINALS AND TOOL CASSETTE
PCT/FR1997/001046 WO1997048154A1 (en) 1996-06-12 1997-06-11 Device for crimping a series of metal lugs, and tool assembly therefor

Publications (2)

Publication Number Publication Date
EP0904614A1 EP0904614A1 (en) 1999-03-31
EP0904614B1 true EP0904614B1 (en) 2000-01-05

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Application Number Title Priority Date Filing Date
EP97928335A Expired - Lifetime EP0904614B1 (en) 1996-06-12 1997-06-11 Device for crimping of metal lugs in mass production and tool assembly therefor

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EP (1) EP0904614B1 (en)
JP (1) JP2000513482A (en)
AT (1) ATE188580T1 (en)
DE (1) DE69701099T2 (en)
ES (1) ES2143873T3 (en)
FR (1) FR2749797B1 (en)
PT (1) PT904614E (en)
WO (1) WO1997048154A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782578B1 (en) * 1998-08-21 2002-03-15 Sierma Ingenierie Sa DEVICE FOR SERIES CRIMPING OF METAL TERMINALS AND PRESET CASSETTE FOR GUIDING A TERMINAL STRIP
FR2790606B1 (en) * 1999-03-02 2001-05-04 Mecanique Et De Chaudronnerie MODULAR CRIMPING TOOL
DE102009031051B9 (en) * 2009-03-18 2013-01-31 Schäfer Werkzeug- und Sondermaschinenbau GmbH crimping press
US10566755B2 (en) * 2017-04-25 2020-02-18 Te Connectivity Corporation Crimp tooling for terminal crimping machine
JP7085643B2 (en) * 2018-04-24 2022-06-16 シュロニガー アーゲー Tool changer, machining machine, and tool change method
DE102021109290A1 (en) 2021-04-14 2022-10-20 Te Connectivity Germany Gmbh Tool for making an assembly, method of making the assembly with the tool and assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329897A1 (en) * 1973-06-12 1975-01-02 Essex International Inc Terminals clincher feed mechanism - has ram guide pillars which control pump and actuating cylinders
FR2643514B1 (en) * 1989-02-17 1991-10-25 Ricard Claude METHODS AND DEVICES FOR MECHANICALLY CRIMPING A CONNECTING PART ON A WIRE
CH685029A5 (en) * 1992-08-12 1995-02-28 Jan Brousek Dipl Ing Crimping tool for electrical connectors and using the same.

Also Published As

Publication number Publication date
FR2749797A1 (en) 1997-12-19
ES2143873T3 (en) 2000-05-16
JP2000513482A (en) 2000-10-10
FR2749797B1 (en) 1998-09-04
PT904614E (en) 2000-06-30
DE69701099D1 (en) 2000-02-10
ATE188580T1 (en) 2000-01-15
EP0904614A1 (en) 1999-03-31
DE69701099T2 (en) 2000-09-14
WO1997048154A1 (en) 1997-12-18

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