EP0562229A2 - Pince de sertissage pour extrémités des fils - Google Patents

Pince de sertissage pour extrémités des fils Download PDF

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Publication number
EP0562229A2
EP0562229A2 EP93100823A EP93100823A EP0562229A2 EP 0562229 A2 EP0562229 A2 EP 0562229A2 EP 93100823 A EP93100823 A EP 93100823A EP 93100823 A EP93100823 A EP 93100823A EP 0562229 A2 EP0562229 A2 EP 0562229A2
Authority
EP
European Patent Office
Prior art keywords
crimping
pliers
drum
crimping drum
lever
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.)
Granted
Application number
EP93100823A
Other languages
German (de)
English (en)
Other versions
EP0562229B1 (fr
EP0562229A3 (en
Inventor
Hartmut Schmode
Ulrich Wiebe
Siegfried Storm
Detlev Hetland
Bernd David
Hans-Joachim Kornfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP0562229A2 publication Critical patent/EP0562229A2/fr
Publication of EP0562229A3 publication Critical patent/EP0562229A3/de
Application granted granted Critical
Publication of EP0562229B1 publication Critical patent/EP0562229B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/045—Hand tools for crimping with contact member feeding mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
    • Y10T29/5148—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means
    • Y10T29/515—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means to trim electric component
    • Y10T29/5151—Means comprising hand-manipulatable implement
    • 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
    • Y10T29/53222—Means comprising hand-manipulatable implement
    • Y10T29/53226—Fastening by deformation

Definitions

  • the invention relates to pliers for machining conductor ends according to the preamble of patent claim 1.
  • Such pliers have already been proposed in German patent application P 41 36 302.7. These pliers contain two handles which can be moved relative to one another, a plurality of processing stations for processing the ends of the conductors and a drive device via which the processing stations can be driven when the handles are actuated. Of the mentioned processing stations at least one is designed as an axially displaceable and rotatably mounted crimping drum which can be coupled in the axially displaced position to the drive device in only one machining operation and in this position can be locked via a flange projecting radially therefrom.
  • the locking device needs a further improvement with regard to its wear resistance, particularly in the case of frequently used pliers.
  • An even more secure supply of contact elements of different cross-section to be crimped with the conductor ends is also to be ensured if these are inserted in the die on the circumference of the crimping drum.
  • the stripping process should also be further improved in that it is practically no longer controlled depending on the path in order to generate more uniform stripping forces and to increase the ease of use of the pliers.
  • the invention has for its object to develop the pliers of the type mentioned so that it has a further improved operational reliability.
  • conductor ends can be machined in different ways, with individual machining functions of the pliers optionally being able to be activated, specifically directly through the sequence of movements during the machining process.
  • At least the crimping station can be coupled to the drive device with the aid of a conductor end to be machined.
  • the crimping station is coupled to the drive device directly in the course of the movement of the conductor end or using the conductor end itself, so that the user does not need to carry out any further adjustment processes.
  • the pliers therefore have a plurality of processing stations which can be driven by the drive device, but not all of which are permanently driven by the movement of the handles via the drive device. At least the crimping station remains uncoupled from the drive device until it is actually needed.
  • the flange extends over the entire circumference of the crimping drum, at least one recess being made in the flange.
  • a fixed on the pliers body and radially opposite the flange Locking lug engages in the non-displaced axial position of the crimping drum into the recess and up to near the outer surface of the crimping drum, while the locking lug comes to lie over the outer surface of the crimping drum in the axially displaced and rotated position and engages behind the flange.
  • this flange In contrast to the conventional design, in which the flange is formed by radially projecting tabs, this flange now extends over the entire circumference of the crimping drum, so that it has greater mechanical strength. It can no longer bend so quickly, so that the life of the crimping drum and thus the entire pliers is considerably longer.
  • the locking lug engages radially in the recess and is arranged in a stationary manner on the pliers housing. If necessary, it can be replaced in a simple manner, since it was designed as a wear and tear or spare part right from the start. With the conventional pliers, the corresponding locking walls could not be replaced. They were permanently attached to the pliers housing.
  • the locking nose can preferably engage in said recess in a positive manner in order to position the crimping drum exactly in terms of its rotational position in the idle state.
  • the locking lug only engages in the recess to such an extent that when the crimping drum is axially displaced and after the crimping drum is subsequently rotated, it still reaches its outer surface.
  • the locking nose does not hinder the rotation of the crimping drum if it has been axially displaced.
  • the crimping drum there may be several dies for receiving contact elements of different cross-section to be crimped on, e.g. B. for crimping wire end sleeves, and a corresponding number of recesses in the flange, one of which is assigned to a die and is at a predetermined distance from this.
  • the crimping drum can always be locked in its rotational position when a die is in one for all dies intended loading position.
  • the locking lug engages in a flange recess which is assigned to another die.
  • the recesses in the flange can open into further recesses, which are located on the circumference of the crimping drum and at a predetermined distance from a die, the distance being chosen such that a crimping stamp is inserted into the further recess when the associated die is in the loading position located.
  • the recess for the locking lug and the further recess for the crimping die can be produced in one operation, which reduces the manufacturing costs of the crimping drum.
  • the locking lug is integrally connected to a holding bracket which is guided into the crimping position of the crimping drum and is located there close to its outer surface.
  • This holding bracket allows a contact element to be crimped to be securely positioned when it lies in a die that has been guided into the crimping position.
  • the crimping of a contact element onto a conductor end can then take place even more precisely, which leads to greater operational reliability of the pliers.
  • the locking lug and the retaining bracket are preferably carried by two rods which are spaced apart and parallel to one another and run parallel to the crimp drum axis and are fastened to the pliers housing.
  • One end of the parallel rods is inserted into prepared openings that are located on the side of the pliers housing.
  • the rod carrying the locking lug is additionally mounted in the pliers housing at the other end of the rod.
  • An exchange of locking lug and bracket can be accomplished in a particularly simple manner.
  • the two parallel rods also ensure that the locking lug and retaining bracket are secured against rotation, which leads to an exact positioning of these two elements.
  • the rods also generate a certain pre-tension for the retaining bracket when a contact element lying in a die is guided into the crimping position and thereby radially afterwards presses against the bracket on the outside. The contact element is thereby fixed particularly securely in the die, regardless of the cross-sectional size of the contact element.
  • the locking lug can be connected in one piece to an actuating lever protruding from the pliers housing in order to be able to unlock or rotate the crimping drum when it is in its normal state, that is to say not axially displaced or not with the drive device is coupled. If the actuating lever is actuated, the locking lug is led out of the recess in the flange of the crimping drum, so that a desired die can now be brought into the loading position by turning the crimping drum by hand.
  • the locking lug, retaining bracket, rods and adjusting lever are preferably formed by a single plastic injection-molded part, which can be manufactured particularly inexpensively, so that it can preferably be used as a wear element.
  • a crimp drum-controlled transport device for feeding contact elements connected in the form of a band to a die is provided with a transport lever which, at its end facing the crimp drum, has a shoulder which engages between the contact elements and on its other end is articulated below a transport plate, a compression spring spreading these elements lying between the transport plate and the transport lever.
  • the transport plate is transported away from and back to the crimping drum, the transport lever then taking the next contact element with it and pushing it into the die, which is now in the loading position.
  • the transport lever is designed to be relatively stable or consists of a rigid arm, so that a perfect transport of the contact elements or wire end sleeves in the direction of the crimping drum is ensured.
  • the compression spring can, for. B. surround a mandrel helically, which is firmly connected to the transport lever and extends through the transport plate.
  • the compression spring is supported on the one hand on the underside of the transport plate and on the other hand on the transport lever.
  • a pressure stamp holding down the contact elements is provided.
  • This pressure stamp prevents contact elements which are pressed by the transport lever in the direction of the crimping drum from building up in front of the crimping drum when a die is returned from the crimping position to the loading position by rotating the crimping drum but has not yet reached the loading position .
  • the pressure stamp is attached to one end of a support arm located above the transport plate, the other end of which is mounted on a transverse wall which limits the movement of the transport plate in the direction of the crimping drum.
  • a locking slide can be arranged above the support arm in order to preset the height of the pressure stamp via the support arm.
  • the position of the pressure stamp perpendicular to the direction of transport of the contact elements or wire end sleeves can then be selected in accordance with the diameter of the contact elements or wire end sleeves.
  • another of the processing stations is a stripping station which has a pivotable clamping jaw which can be driven via a knee joint located between the drive device and the movable clamping jaw.
  • a knee joint located between the drive device and the movable clamping jaw.
  • a pulling element Via a toggle lever of the knee joint, a pulling element can be driven, with which cutting and stripping jaws guided in the clamping jaws are connected, which are used to cut and pull off the conductor insulation.
  • the toggle lever can strike directly against an extension of the pulling element, via which the pulling element is also guided in the tong housing.
  • the tension element therefore does not need to be provided with a further drive attachment.
  • the toggle lever connected to the movable clamping jaw preferably has a lateral pin which is guided in a guideway of the pliers body. This guideway is curved towards the rear end of the pliers so that the movable jaw of the stripping station opens when the pin reaches the rear part of this guide.
  • the pliers can also have additional processing stations, for example a cutting station for cutting conductors.
  • this cutting station does not necessarily have to be driven by the drive device.
  • the cutting device of the cutting station can also be attached directly to the handles.
  • the pliers 1 according to the invention have a one-piece, hollow pliers body 2, the rear part of which is formed by an upper and immovable handle 3.
  • the front part of the pliers body 2 is designed in the form of a fixed jaw 4.
  • a cover 5 of the pliers body 2 is pivotable about an axis 6, so that the inside of the pliers body 2 is accessible from the upper side of the pliers 1.
  • a movable jaw 8 is pivotally mounted in the lower region of the pliers body 2 by means of a bearing pin 7. It is opposite the fixed jaw 4.
  • a knee joint with a first toggle lever 9 and a second toggle lever 10 serves to drive the movable Clamping jaw 8 and acts on it in an area which projects beyond the journal 7 to the rear. The knee joint will be described in detail later.
  • a lower handle 11 of the pliers 1 is integrally connected to a drive part 12, the drive part 12 being pivotably mounted on the pliers body 2 by means of a bearing pin 13.
  • the lower handle 11 is thus pivotally held on the pliers body 2 via the drive part 12 and the bearing pin 13, so that a relative movement between the lower handle 11 and the upper handle 3 is possible.
  • a tension spring 14 engages the drive part 12 above the bearing pin 13 and, on the other hand, is connected to the pliers body 2 at a point which lies in the direction of the upper handle 3. With the help of the tension spring 14, the lower handle 11 is thus rotated clockwise around the bearing pin 13, so that the tension spring 14 tries to keep the handles 3 and 11 in a spread position.
  • a short row of teeth or a tooth space 15 at the rear end of the drive part 12 works together with a spring-loaded locking hook 16 rotatably mounted in the pliers body 2 as a lock against premature opening of the pliers 1.
  • a crimping station 17 In the upper and front part of the pliers body 2 there is a crimping station 17, to which a crimping drum 18 and a crimping lever 19 belong.
  • the crimping lever 19 is driven with the aid of the drive part 12, while the drive part 12 ensures the rotation of the crimping drum 18 with the aid of a transport lever 20, which can be seen in FIGS. 4, 6 and 12 .
  • the drive part 12, the knee joint 9, 10 and the transport lever 20 form a drive device 21.
  • FIG. 2 shows a cross section through the upper handle 3 along the line A - A of FIG. 1.
  • the upper handle 3 is hollow and has a bottom 3a in its lower area, which is laterally connected to the Walls of the handle 3 is connected.
  • the bottom 3a also extends out of the handle 3 into the pliers body 2 and is guided up to the crimping station 17.
  • contact elements can be stored that close with wire ends are crimped, for example wire end sleeves 22, which are chained together in a band. They are fed to the crimping station 17 with the aid of a supply and transport station 23 positioned on the floor 3a in the vicinity of the crimping station 17.
  • the cross-sectional shape of the lower handle 11 is shown in more detail in FIG. 3. This is a cross section along the line BB in FIG. 1.
  • the lower handle 11 is open towards the upper handle and is essentially U-shaped.
  • a pair of cutting jaws 24, 25 is arranged, which are integrally connected to an elongated tension element 26.
  • Cutting jaws 24, 25 and tension element 26 can e.g. B. be made of plastic.
  • the upper cutting jaw 24, which rests on the fixed clamping jaw 4 (see FIG. 1), carries an adjustable end stop 27 for a conductor end 28 to be stripped.
  • the end stop 27 can be displaced in a longitudinal slot 29 by clamping.
  • the cutting jaws 24 and 25 each have knives 30 and 31 in the front area for severing the insulation of the conductor end.
  • the knee joint 9, 10 also serves for the longitudinal displacement of the cutting jaws 24 and 25 in the direction of the handles 3 and 11.
  • the upper and lower cutting jaws 24 and 25 are integrally connected to the elongated pulling element 26.
  • This tension element 26 has, on opposite sides, two horizontal transverse arms 32 and 33, which are guided in mutually opposite longitudinal slots 34 (FIG. 1), which are located in the lateral region of the pliers body 2.
  • the horizontal cross arms 32 and 33 can have a rectangular or round cross section. In the case of a rectangular cross section, rotation of the transverse arms 32 and 33 in the longitudinal slots 34 is not possible.
  • the horizontal transverse arms 32 and 33 are acted upon when the handles 3 and 11 are pressed together by the knee joint 9, 10 in order to move the elongated pulling element 26 to the rear, which will be discussed in more detail below.
  • the elongated pulling element 26 At the rear end of the elongated pulling element 26 there is an upward-pointing eyelet 35.
  • a spring F engages in this eyelet 35, the other end of which is connected to a pin S, which in turn is fastened to the drive part 12. If the knee joint 9, 10 releases the transverse arms 32 and 33, the elastic force of the spring F moves the elongated tension element 26 and with it the cutting jaws 24 and 25 again towards the front of the forceps.
  • the component consisting of upper and lower cutting jaws 24 and 25 and elongated tension element 26 can also be referred to as an elongated tension element for the sake of simplicity.
  • the knee joint 9, 10 consists of the already mentioned first toggle lever 9 and the already mentioned second toggle lever 10.
  • the first toggle lever 9 has a bead 9a at its lower end, which in the rear part of the movable jaw 8 is rotatably mounted.
  • the second toggle lever 10 has in its upper part a bead 10a which is rotatably mounted in a bearing 36 of the drive part 12.
  • Both toggle levers 9, 10 are rotatably connected to one another via a pin S '.
  • the toggle lever 9, 10 thus lies between the drive part 12 and the rear end of the movable clamping jaw 8, which projects beyond the bearing pin 7 in the direction of the rear end of the pliers.
  • the bearing 36 is in a position which is displaced in the forward direction of the pliers 1 with respect to the bearing pin 13.
  • the drive part 12 also rotates around the bearing journal 13 at the same time.
  • the rotation takes place counterclockwise.
  • the movable jaw 8 is rotated clockwise around the bearing pin 7, that is to say in the direction of the fixed jaw 4, so that the jaws close. If a pressure determined by the construction of the knee joint 9, 10 is reached, the knee joint 9, 10 in FIG. 4 breaks away to the right, that is to say toward the rear end of the forceps 1.
  • the transverse arms 32 and 33 are thereby stopped by a stop surface 9b of the first toggle lever 9 and moved in the direction of the rear end of the pliers, and with them also the cutting jaws 24 and 25.
  • This guideway is curved in the rear end so that the pliers mouth opens again when the pin 9c reaches this rear end of the guideway. The stripped wire end can then be removed from the pliers mouth.
  • the handles 3 and 11 are released again, they can move away from each other again due to the tensile force of the spring 14, on the one hand the drive part 12 is rotated clockwise around the bearing journal 13 so that the knee joint 9, 10 stretches again.
  • the elongated tension element 26 is moved forward due to the action of the elastic spring 35. This continues until a lower extension 10b of the second toggle lever 10 strikes the first toggle lever 9 from behind.
  • the drive part 12 is connected in one piece to the front part of the lower handle 11, as already explained.
  • the drive part 12 has two wall regions 12a and 12b lying parallel to one another, each of which form the extensions of the side walls of the lower handle 11 and can additionally also be cross-stiffened with respect to one another. Openings 37 in the front side walls of the lower handle 11 serve to receive the pin S for fastening the spring F.
  • the tooth gap 15 is only present on the right wall element 12b.
  • Fig. 6 shows that in the left wall element 12a there is an opening 13a for the bearing pin 13 and the bearing 36 for receiving one end 10a of the second toggle lever 10.
  • openings 38 for fastening the two wall elements 12a, 12b Tension springs 14 are provided.
  • both wall elements 12a, 12b there are angled guideways 39 in both wall elements 12a, 12b, in which a pin 40 of a crimping lever 19 is guided.
  • This pin 40 extends through both guideways 39, which are arranged congruently.
  • This transport lever 20 represents the coupling between the drive part 12 and the crimping drum 18, as will be explained.
  • a counter bearing 43 for receiving a conductor to be cut can be seen in FIGS. 6 and 7.
  • This counter bearing 43 works together with a knife 44 (FIG. 1) which is guided into the region of the counter bearing 43 or crosses it when the handles 11 and 3 are pressed together.
  • a conductor to be cut is provided with the reference numeral 45.
  • the knife 44 can for example be attached to the inner side wall of the pliers body 2. It covers a slot 46 in the side wall into which the conductor can enter.
  • the crimping drum 18 is mounted in the front upper region of the pliers body 2.
  • the crimp drum 18 is one Axis 18a rotatable, which is attached to opposite side walls of the pliers body 2.
  • the axis 18a runs practically perpendicular to the plane of the pliers.
  • the crimping drum 18 can also be displaced by a certain amount in the axial direction on this axis 18a, wherein it is biased forward by means of spring force in the axial direction, that is to say when looking at FIGS. 1 and 4 out of the plane of the paper.
  • 1 and 4 show a top view of the front of the crimping drum 18.
  • the crimp drum 18 has a plurality of axially extending dies 47, 48, 49 on its circumference, as is shown in particular in FIG. 8. These dies 47, 48 and 49 are suitable for receiving contact elements to be crimped to the conductor ends, which can be, for example, wire end sleeves.
  • the dies 47, 48, 49 can be of different sizes in order to be able to use wire end sleeves of different sizes for conductors with cross sections of different sizes.
  • the dies 47, 48, 49 are preferably arranged on the circumference of the crimping drum 18 at equal angular distances.
  • the crimping drum 18 has on its rear side a radially projecting peripheral flange 52 which is present in the entire peripheral region and is only interrupted by recesses 51 which are on the surface of the Crimp drum 18 extend in the axial direction.
  • Each die 47, 48, 49 is assigned one of these recesses 51, which is clockwise in front of the respective die in the figures mentioned.
  • the distance between the die and the associated recess is selected so that the recess is in the crimping position when the associated die is in the loading position.
  • Fig. 8 z. B the direction of insertion for a conductor in the crimping drum 18 represented by the arrow E.
  • the dies taper in the insertion direction E and are closed at the rear by the peripheral flange 52.
  • the recesses 51 have the purpose of receiving a crimp stamp when the respective die is in the loading position, as will be described.
  • a locking element 50 serves to lock the crimping drum 18 both in its circumferential direction and in its axial direction.
  • the locking element 50 has a locking lug 50a, a holding bracket 50b, two parallel rods 50c and 50d and an adjusting lever 50e. All elements 50a to 50e are integrally connected to one another and consist, for. B. made of plastic.
  • the locking element 50 can best be seen in FIGS. 4, 6 and 7.
  • the two parallel rods 50c and 50d which run parallel to the axis 18a of the crimping drum 18, are each fixedly inserted into corresponding recesses at the same end, which are located on the inner side wall of the pliers housing 2.
  • the locking lug 50a is connected to the rod 50c and engages in one of the recesses 51, specifically in the region of the peripheral flange 52 when the crimping drum 18 is in the rest position or in the axially non-displaced position.
  • the locking lug 50a engages only so far in the recess 51 that its tip does not come to lie lower than the outer surface of the crimping drum 18.
  • the crimping drum 18 can therefore no longer be rotated because the locking lug 50a lies in the circumferential movement path of the circumferential flange 52.
  • the crimping drum 18 is thus locked, a die, here die 47, being in the loading position.
  • the adjusting lever 50e can be actuated in such a way that the locking lug 50a is turned out of the path of the peripheral flange 52 about the rod 50c serving as an axis.
  • the crimping drum 18 can be rotated, namely by hand and via a corresponding opening in the pliers housing 2. If another die has been brought into the loading position, the locking nose 50a then snaps into a corresponding recess 51 again.
  • the rod 50c is also on the other end of which is supported in the pliers housing 2, while the rod 50d is not held in the pliers housing at this end.
  • the bracket 50b is further attached, which runs below the crimping drum 18 and is inserted into the crimping position.
  • the bracket 50b is located on the rod end facing away from the locking nose 50a.
  • the tip of the holding bracket 50b comes to lie laterally on a crimping die to be described and in the vicinity of the circumference of the crimping drum 18. If a wire end sleeve lying in a die is guided into the crimping position by rotating the crimping drum 18, it is there with the aid of Holding bracket 50b pressed radially into the die and thus fixed, so that a perfect crimping process can take place.
  • the bracket 50b is also supported on the rod 50d, whereby it is resiliently biased towards the crimping drum 18.
  • the locking lug 50a and the holding bracket 50b are therefore at different ends of the holding rod 50c.
  • the rods 50c and 50d can have different cross sections.
  • the former can have a round cross-section, while the latter can have a square cross-section.
  • the peripheral flange 52 also shifts relative to the locking lug 50a, so that when the crimping drum 18 rotates, the locking lug 50a above the outer surface of the crimping drum 18 and laterally to the peripheral flange 52 comes to rest. Since the locking lug 50a is fixedly positioned in the axial direction of the crimping drum 18, the locking lug 50a now fixes the axial position of the crimping drum 18a in the axial direction, since the peripheral flange 52 is now pressed against the side of the locking lug 50a. Only when the crimping drum 18 has been turned back into its starting position does the locking lug 50a come back into the region of the recess 51, so that the crimping drum 18 can now move axially forward to the starting position.
  • the crimping drum 18 On the back of the crimping drum 18 there are axially extending projections 54 at a predetermined angular distance from the dies 47 to 49, as best shown in FIGS. 8 and 9. If the crimping drum 18 is displaced axially in the direction of arrow E by inserting a conductor end into a die 47 to 49, one of the projections 54 also comes into engagement with a vertical slot 55 at the other end of the transport lever 20. It is shown in FIG. 12. Since the crimping drum 18 is now locked in its rear axial position by the crimping nose 50a, the crimping drum 18 can now be rotated by means of the drive part 12 via the transport lever 20.
  • the crimping drum 18 when the handles 3 and 11 are pressed together and during the subsequent spreading process, there is a movement of the crimping drum 18, in which a die is first rotated from the loading position into the crimping position and then rotated back into the loading position.
  • three dies are provided for contact elements or wire end sleeves.
  • the respective dies can accommodate wire end ferrules for cross-sectional sizes of 0.5 / 0.75, 1 / 1.5 and 2.5 mm2. So that the conductor end can follow the rotary movement of the crimping drum 18, there is a corresponding circular segment-like slot on the wall of the pliers body 2.
  • the transport lever 20 shows the detailed structure of the transport lever 20. It consists of a key-shaped plate which has the vertical slot 55 at its front end and an angled guide slot 42 at its rear end, the opening angle of which is directed towards the vertical slot 55.
  • the transport lever 20 can be guided between the rear wall of the pliers body 2 and the rear side of the wall element 12b.
  • the crimping lever 19 carries a crimping die 56 which is suitably brought up to an element to be crimped when it has been brought into the crimping position by the crimping drum 18.
  • the crimping lever 19 has a bearing device 57 at its lower end, via which it is pivotably mounted in the pliers body 2.
  • the bearing device 57 can be, for example, a reinforced hollow cylinder through which an axis A runs (FIGS. 4, 6 and 7), which is fastened to the pliers body 2.
  • the crimping lever 19 can then be pivoted about this axis A.
  • the crimping lever 19 is provided with the already mentioned pin 40, which runs parallel to the axis of the bearing device 57. With this pin 40, the crimping lever 19 engages in the angled guideway 39, which is located within the drive part 12, more precisely within both wall regions 12a and 12b. In this way, a particularly stable connection between drive part 12 and crimping lever 19 is achieved.
  • This transport device which is provided with the reference symbol 23, has a transport plate 58 which can be moved towards and away from the crimping drum 18.
  • the transport lever 59 is pivotally articulated on the transport plate 58, a compression spring 61 being present between the transport plate 58 and the transport lever 59, which spreads both elements.
  • the compression spring 61 surrounds a mandrel 62 in a helical manner (see FIG.
  • the transport lever 59 When the transport device 23 moves away from the crimping drum 18, the transport lever 59 only slides over the wire end sleeves 60, since it is resiliently mounted.
  • the compression spring 65 which is tensioning during this movement, is supported on the one hand on an extension 67 of the extension 64 and on the other hand on a transverse wall 68 through which the extension 64 runs, as can be seen in FIG. 7.
  • the movement of the transport device 23 in the direction of the crimping drum 18 is limited by a hook-shaped design 69 at the free end of the extension 64, which strikes the transverse wall 68 from behind.
  • This transverse wall 68 is fixedly mounted in the upper handle 3.
  • the transport device 23 is mounted on the cover 5 so that it is lifted when the cover 5 is lifted.
  • the transport plate 58 can be mounted in lateral guideways in the interior of the cover side walls.
  • a latching slide 70 is arranged on its upper side and can be displaced in the direction of the front and rear end of the pliers.
  • a projection 71 is integrally formed on the underside of the locking slide 70 and has an obliquely extending guide groove 72. This guide groove 72 extends in the longitudinal direction of the handle 3 and towards the front end of the pliers at an angle downwards.
  • a pin 73 of a support arm 74 engages in it, which has rear lugs 75 which are fixedly mounted in the transverse wall 68.
  • a pivot point for the support arm 74 is formed there, so to speak, which is practically below the upper cover of the handle 3.
  • a U-shaped pressure stamp 76 At the front end of the support arm 74 facing the crimping drum 18 there is a U-shaped pressure stamp 76, the two legs 76a and 76b of which are directed towards the wire end sleeves 60 and act on them. Depending on the diameter of the wire end sleeves 60, the locking slide 70 can then be moved so that the pressure stamp 76 comes to rest on the wire end sleeves 60 in order to prevent them from rearing up in the area immediately in front of the crimping drum 18 as a result of the pushing pressure of the transport lever 59.
  • the transport lever 59 of the transport device 23 comes to rest between the legs 76a and 76b of the pressure stamp 76, the transport device 23 being located directly below the support arm 74.
  • the Legs 76a and 76b of the plunger 76 can be of different lengths in order to press down the wire end sleeves 60 in the area of their metallic sleeve and in the area of their insulation ring, different diameters being present in these areas. If the cover 5 is raised, the support arm 74 is also raised. Now ferrules can be refilled.
  • the operation of the pliers 1 during crimping is described in more detail below. If a conductor end is inserted into the die 47, which is in the loading position, the crimping drum 18 is thereby displaced axially to the rear, against a spring force. The circumferential flange 52 thereby comes into an axial position which is displaced with respect to the artetic nose 50a. At the same time, the projection 54, which is assigned to the die 47 in the loading position, comes into engagement with the vertical slot 55 of the transport lever 20. If the handles 3 and 11 are now moved towards one another, the peripheral flange 52 comes behind the locking lug 50a, so that the Axial position of the crimping drum 18 is locked. At the same time, the die 47 moves from the loading position towards the crimping position.
  • the drive part 12 is rotated around the bearing journal 13, specifically counterclockwise in the figures.
  • the transport lever 20 is shifted in the direction of the crimping drum 18, since the pin 41 lies in the upper region of the angular guide 42.
  • the die 47 moves from the loading position into the crimping position before the crimping lever 19 rotates.
  • the pin 40 moves within the angular guide 39 only in the horizontally lying branch, so that the crimping lever 19 is initially not carried along when the drive part 12 is moved.
  • the pin 40 of the crimping lever 19 now runs upwards in the vertical branch of the guide 39, so that the crimping lever 19 is rotated counterclockwise about its bearing axis A. becomes.
  • the crimping die 56 is pressed into the ferrule, which is in the crimping position at this time.
  • the pin 41 runs in the lower branch of the guide 42, from the center downwards, so that the transport lever 20 is not moved any further. If the crimping die 56 is pressed against the wire end sleeve, the crimping drum 18 remains at rest.
  • the spring 14 tries to spread the handles 3 and 11.
  • the spring 14 thus pulls the drive part 12 clockwise around the bearing pin 13.
  • the pin 41 runs in the lower branch of the guide 42 to its central region without the transport lever 20 being moved back thereby.
  • the crimp drum 18 therefore initially remains at rest.
  • the pin 40 runs downward in the vertical branch of the guide 39, so that the crimping lever 19 is rotated clockwise about the bearing axis A.
  • the crimping die 56 is therefore removed from the crimping drum 18. If the pin 41 is in the middle area of the guide 42 and the pin 40 is in the lower area of the vertical branch of the guide 39, the next movement phase begins.
  • the peripheral flange 52 is released from the locking lug 50a, so that the crimping drum 18 is pressed forward again, specifically because of the spring arranged between it and the rear wall of the pliers body 2.
  • the projection 54 is also removed from the vertical slot 55, so that there is no longer any coupling between the transport lever 20 and the crimping drum 18.
  • the backward movement of the crimping drum 18, that is to say by the axial backward displacement, the run-up slope 63 is released, since the projection 54 lying thereon is also withdrawn.
  • the transport plate 58 can thus push a further wire end sleeve 60 into the die in the loading position due to the force of the spring 65.
  • the crimping drum 18 is returned to the axial starting position after each movement cycle, that is to say it is decoupled from the drive device or the transport lever 20.
  • the transport lever 20 is now moved back and forth, while on the other hand the crimping lever 19 is pivoted about its pivot axis A.
  • the crimping die 56 is therefore always moved into the crimping position, even if the die should be in the loading position. In order to avoid damage to the crimping drum 18 in this case, it has the recesses 51 in its surface, as already mentioned. These recesses are in the crimping position when the associated die is in the loading position. The crimping die 56 can therefore also carry out its full movement in the latter case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Processing Of Terminals (AREA)
  • Confectionery (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP93100823A 1992-03-24 1993-01-20 Pince de sertissage pour extrémités des fils Expired - Lifetime EP0562229B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4209529 1992-03-24
DE4209529A DE4209529C1 (fr) 1992-03-24 1992-03-24

Publications (3)

Publication Number Publication Date
EP0562229A2 true EP0562229A2 (fr) 1993-09-29
EP0562229A3 EP0562229A3 (en) 1996-07-31
EP0562229B1 EP0562229B1 (fr) 1999-12-01

Family

ID=6454879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100823A Expired - Lifetime EP0562229B1 (fr) 1992-03-24 1993-01-20 Pince de sertissage pour extrémités des fils

Country Status (8)

Country Link
US (1) US5347705A (fr)
EP (1) EP0562229B1 (fr)
JP (1) JPH0828263B2 (fr)
KR (1) KR960013716B1 (fr)
AT (1) ATE187285T1 (fr)
CA (1) CA2092253C (fr)
DE (2) DE4209529C1 (fr)
TW (1) TW198148B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725650A1 (fr) * 1994-10-13 1996-04-19 Legrand Sa Outil a main pour le sertissage d'un embout de cablage sur l'extremite denudee d'un conducteur electrique, et, eventuellement, pour le denudage prealable de cette extremite
EP1420490A1 (fr) * 2002-11-16 2004-05-19 Weidmüller Interface GmbH & Co. Pince pour sertir
EP1496586A1 (fr) * 2003-07-05 2005-01-12 Weidmüller Interface GmbH & Co. KG Pince à dénuder
US11154854B2 (en) 2016-12-16 2021-10-26 Eppendorf Ag Method for dosing liquid by means of a pipette and a syringe, and pipette for actuating a syringe for dosing liquid

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136302C1 (fr) * 1991-11-04 1993-03-11 Weidmueller Interface Gmbh & Co, 4930 Detmold, De
DE4322856C1 (de) * 1993-07-08 1994-06-09 Weidmueller Interface Zange zum Bearbeiten von Leiterenden
DE4413748A1 (de) * 1994-04-20 1995-11-02 Josef Krampe Zangenartiges Werkzeug zum Verdrillen des teilweise freigelegten Endbereichs eines eine Litze als Ader aufweisenden isolierten Leiters
US6805169B2 (en) * 2002-09-30 2004-10-19 Tyco Electronic Corporation Method and apparatus for wire splicing
DE20310378U1 (de) * 2003-07-05 2004-11-18 Weidmüller Interface Gmbh & Co. Zange mit einer Crimpstation
CN100474722C (zh) * 2004-08-12 2009-04-01 威德米勒界面有限公司及两合公司 具有绝缘层剥除装置的钳子
FR2904733B1 (fr) * 2006-08-04 2008-11-14 Labinal Sa Dispositif de positionnement pour outil de sertissage, et outil de sertissage en etant equipe
EP2182595A3 (fr) * 2008-11-03 2010-10-20 Tri-Star Technologies Chargeur de magasin à contact pour pince portable
CN104009362B (zh) * 2014-05-26 2016-05-18 宁波江丰生物信息技术有限公司 一种基于多股通信线缆集合压制的装置及方法
DE102019117856A1 (de) * 2019-07-02 2021-01-07 Phoenix Contact Gmbh & Co. Kg Magazin zur Verarbeitung von Aderendhülsen und Handwerkzeug zum Verpressen von Aderendhülsen
RU209098U1 (ru) * 2021-08-12 2022-02-01 Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") Электрическая клемма
TWI776650B (zh) * 2021-08-24 2022-09-01 潤弘精密工程事業股份有限公司 用於固定鋁模板之夾鉗工具以及固定鋁模板之方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1340563A (fr) * 1961-12-04 1963-10-18 Amp Inc Outil presseur à main pour sertir des connecteurs électriques
US3170501A (en) * 1961-03-20 1965-02-23 Buchanan Electrical Prod Corp Crimping tool
DE2149167A1 (de) * 1971-10-01 1973-04-05 Reiner Rommel Kniehebelzange mit linearem arbeitsweg zum pressen, lochen, trennen usw., insbesondere zum herstellen nicht loesbarer elektrischer leitungsverbindungen, huelsen-, wuerge- und endverbindungen
US4774762A (en) * 1987-04-10 1988-10-04 Mcdonnell Douglas Corporation Hand-held automatic power crimper
EP0380388A1 (fr) * 1989-01-20 1990-08-01 Telemecanique Outil de sertissage à chargement automatique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710610A (en) * 1970-06-05 1973-01-16 Bunker Ramo Wire terminal crimping tool
DE2402187C3 (de) * 1974-01-17 1980-02-07 C. A. Weidmueller Kg, 4930 Detmold Handzange zum Abisolieren von Leiterenden
US4126936A (en) * 1977-09-29 1978-11-28 Koller Joseph A Identification system for point to point wiring
DE4008515A1 (de) * 1990-03-16 1991-09-19 Zoller & Froehlich Hand-pressgeraet
DE4136302C1 (fr) * 1991-11-04 1993-03-11 Weidmueller Interface Gmbh & Co, 4930 Detmold, De

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170501A (en) * 1961-03-20 1965-02-23 Buchanan Electrical Prod Corp Crimping tool
FR1340563A (fr) * 1961-12-04 1963-10-18 Amp Inc Outil presseur à main pour sertir des connecteurs électriques
DE2149167A1 (de) * 1971-10-01 1973-04-05 Reiner Rommel Kniehebelzange mit linearem arbeitsweg zum pressen, lochen, trennen usw., insbesondere zum herstellen nicht loesbarer elektrischer leitungsverbindungen, huelsen-, wuerge- und endverbindungen
US4774762A (en) * 1987-04-10 1988-10-04 Mcdonnell Douglas Corporation Hand-held automatic power crimper
EP0380388A1 (fr) * 1989-01-20 1990-08-01 Telemecanique Outil de sertissage à chargement automatique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725650A1 (fr) * 1994-10-13 1996-04-19 Legrand Sa Outil a main pour le sertissage d'un embout de cablage sur l'extremite denudee d'un conducteur electrique, et, eventuellement, pour le denudage prealable de cette extremite
EP1420490A1 (fr) * 2002-11-16 2004-05-19 Weidmüller Interface GmbH & Co. Pince pour sertir
US6997028B2 (en) 2002-11-16 2006-02-14 Weidmuller Interface Gmbh & Co. Kg Crimping tool
EP1496586A1 (fr) * 2003-07-05 2005-01-12 Weidmüller Interface GmbH & Co. KG Pince à dénuder
US11154854B2 (en) 2016-12-16 2021-10-26 Eppendorf Ag Method for dosing liquid by means of a pipette and a syringe, and pipette for actuating a syringe for dosing liquid
US11697113B2 (en) 2016-12-16 2023-07-11 Eppendorf Ag Method for dosing liquid by means of a pipette and a syringe, and pipette for actuating a syringe for dosing liquid

Also Published As

Publication number Publication date
KR960013716B1 (ko) 1996-10-10
KR930019351A (ko) 1993-10-18
JPH0684573A (ja) 1994-03-25
CA2092253A1 (fr) 1993-09-25
ATE187285T1 (de) 1999-12-15
DE59309887D1 (de) 2000-01-05
EP0562229B1 (fr) 1999-12-01
DE4209529C1 (fr) 1993-07-08
JPH0828263B2 (ja) 1996-03-21
EP0562229A3 (en) 1996-07-31
CA2092253C (fr) 1996-09-03
TW198148B (fr) 1993-01-11
US5347705A (en) 1994-09-20

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