Crimp joint and crimp pliers

Abstract

The utility model relates to a crimping joint and crimping pliers. The utility model relates to a crimp joint for a crimp clamp, which is arranged on an end section of a stripped sheath of a conductor in order to crimp a crimp section of a contact, comprising: a pressing part which can be fixed in a detachable manner on one of two clamp halves of the crimp clamp; and a holder which can be fixed in a detachable manner at the other one of the two clamp halves of the crimping clamp. When the crimping clamp is actuated, the pressing surface of the pressing part plastically deforms the crimping section of the contact part accommodated in the holding part in a segmented manner, and the holding part has accommodating grooves which are open at two opposite side edges and are used for accommodating the contact part. The crimp pliers have pliers halves and such a crimp joint. The crimp joint ensures dimensional stability of a defined section of the contact to be crimped.

Description

Technical Field

[0001] The utility model relates to a crimping joint and a crimping pliers. The crimping joint is used for the crimping pliers, and the crimping pliers has the crimping joint. Background Art

[0002] It is known from the practice of cable processing that the contact is fixed on the stripped end of the cable by means of crimping, i.e. by means of deformation of the crimping section of the contact and by cold extrusion, i.e. by plastic deformation defined in sections. For this purpose, it is particularly known to provide crimping pliers, wherein the manipulation of the pliers halves causes an extrusion piece arranged on one of the two pliers halves to cooperate with a retaining piece arranged on the other of the two pliers halves, so that the extrusion surface of the extrusion piece plastically deforms the crimping section of the contact piece accommodated in the retaining piece in a segmented manner. The extrusion piece or the retaining piece can be constructed as a replaceable part of an interchangeable connector, wherein the corresponding part of the interchangeable connector can be fixed to the corresponding pliers half in a detachable manner. If a contact piece with other dimensions or other technical requirements is to be extruded in the area of ​​the crimping section, the extrusion piece and / or the retaining piece must be replaced if necessary.

[0003] The contact piece which is loosely inserted into the stripped end section of the cable before crimping and is initially fixed to the end section by crimping the crimping section is a component with precisely determined predetermined dimensions which should not be changed as much as possible or only within a limited range by the crimping which causes plastic deformation of at least the crimping section of the contact piece.

[0004] It is particularly known from practice that the contact has a crimping section, a contact section and a locking section, the locking section being constructed as a groove having a length limited in the axial direction and a groove depth limited in the radial direction. In the area of ​​the contact section, mechanical and conductive contact with the mating contact section of the mating contact of the mating plug can be achieved. The locking section is arranged so that the safety element (for example, primary safety or secondary safety) is fixed and locked in space relative to the plug housing. Here, the safety element is embedded in the locking section constructed as a locking groove. In order to reliably embed the safety element in the locking groove, the locking groove must have a defined size and keep these sizes after crimping the crimping section of the contact. It is particularly necessary that during the crimping of the crimping section, the locking groove of the contact maintains a specified longitudinal extension, that is, maintains a preset distance between the edge of the contact section at the rear along the insertion direction and the edge of the compressed crimping section at the front along the insertion direction. This requirement must also be taken into account when crimping by crimping pliers that can be operated by hand.

[0005] It is generally known from the prior art to position the parts to be crimped by means of positioners or positioning elements.

[0006] Document DE 101 34 004 C1 describes crimping pliers with a catch having a U-shaped holding bow with a sliding guided receiving body which is arranged pivotably and displaceably in a guide. Utility Model Content

[0007] Therefore, the object of the present invention is to provide a crimping joint for crimping pliers, which ensures the dimensional stability of a defined section of a contact piece to be crimped, in particular, the predetermined dimensions of the locking groove of the contact piece should remain as constant as possible during crimping.

[0008] A crimping joint is proposed herein, which is used for crimping pliers, and the crimping pliers are arranged on the end section of the conductor from which the sheath is stripped in order to crimp the crimping section of the contact piece. The crimping joint comprises: an extrusion piece, which can be detachably fixed to one of the two pliers halves of the crimping pliers, and a retaining piece, which can be detachably fixed to the other of the two pliers halves of the crimping pliers, and when the crimping pliers are manipulated, the extrusion surface of the extrusion piece causes the crimping section of the contact piece accommodated in the retaining piece to plastically deform in a segmented manner, and the retaining piece has a receiving groove open at two opposite sides, and the receiving groove is used for In order to accommodate the contact piece, the accommodating groove has a first accommodating section, a second accommodating section and an intermediate section constructed between the first accommodating section and the second accommodating section and defining the first accommodating section and the second accommodating section, the diameter of the intermediate section is smaller than the diameter of the first accommodating section and smaller than the diameter of the second accommodating section, the first accommodating section is defined by a spring element that closes the open end of the first accommodating section and by a first joining edge of the intermediate section, and the second accommodating section is defined by a second joining edge of the intermediate section, and a pressing block that can be closely abutted against the second joining edge of the intermediate section is arranged at the open end of the second accommodating section.

[0009] It is further proposed that the receiving groove is configured to be mirror-symmetrical about an imaginary center axis. It is further proposed that the spring element is configured as a leaf spring and that the leaf spring is fixed to the holder. It is further proposed that the holder has a pressing piece and a receiving piece, the receiving groove is configured in the receiving piece, the pressing block is configured as a section of the pressing piece, and the pressing block is guided in a manner prestressed by means of a tensioning spring so as to be movable on the receiving piece. It is further proposed that the pressing piece has the pressing piece and a pin fixed to the pressing piece, the pin is arranged to be movable in a longitudinal hole in the receiving piece, the tensioning spring acts on the pin, and the pressing piece can be pressed against the open end of the second receiving section via the tensioning spring. It is further proposed that the pressing piece can be detachably fixed to the holder in the introduction position, and the pressing piece has a distance from the open end of the second receiving section in the introduction position. It is further proposed that the pressing piece can be detachably fixed to the receiving piece of the holder in the introduction position. It is further proposed that in the introduced position, the prestressed locking body engages in the annular groove in the pin. It is further proposed that in the introduced position, the prestressed locking ball engages in the annular groove in the pin. It is further proposed that a first receiving groove for accommodating a first contact piece and a second receiving groove for accommodating a second contact piece are formed on the retaining element.

[0010] Furthermore, a crimping pliers is proposed which has pliers halves and which also has a crimping connection in one of the above-mentioned embodiments.

[0011] For a crimping joint for crimping pliers, this object is achieved according to the utility model by the following features:

[0012] The holding element has a receiving groove which is open at two opposite sides for receiving the contact element,

[0013] the receiving groove has a first receiving section, a second receiving section and a middle section which is formed between the two receiving sections, delimits the receiving sections and has a reduced diameter,

[0014] a first receiving section is bounded by the spring element which is closed at the open end and by the first joining edge of the middle section, and

[0015] The second receiving section is defined by the second joining edge of the middle section, and a pressing block is arranged at the open end of the second receiving section, which pressing block can be brought into contact with the second joining edge of the middle section.

[0016] Here, the crimping pliers for which the crimping joint according to the invention is provided are configured to crimp the crimping section of the contact piece onto the stripped end section of the conductor, and the crimping pliers essentially have:

[0017] a pressing piece which can be detachably fastened to one of the two jaw halves of the crimping pliers, and

[0018] a holding element which can be detachably fastened to the other of the two jaw halves of the crimping pliers,

[0019] wherein, when the crimping pliers are actuated, the crimping surface of the crimping element plastically deforms the crimping section of the contact element accommodated in the holding element in a segmentally defined manner,

[0020] The crimping pliers have a crimping joint designed according to the utility model.

[0021] The spring element at the open end of the first receiving section and the pressing block that can be close to the second joint edge of the middle section fix the contact piece in a positioning defined relative to the extrusion surface of the extrusion piece. In particular, the non-extruded section of the contact piece is embedded in the receiving groove so that only the crimping section of the contact piece to be deformed protrudes in the direction of the extrusion surface of the extrusion piece beyond the edge of the receiving groove. The crimping section of the contact piece to be extruded is prestressed between the pressing block and the second joint edge of the middle section in a defined and non-lost fixed positioning so that the deformation of the crimping section caused by the crimping does not lead to a change in the critical section of the size of the locking groove of the contact piece. The displacement that occurs during the crimping of the crimping section is supported and accommodated at least in the longitudinal direction of the contact piece by the crimping section of the contact piece on the second joint edge by means of the pressing block. Here, the material flow that occurs during plastic deformation during crimping is particularly oriented transversely to the longitudinal direction.

[0022] It is preferably provided that the receiving groove is designed essentially in a mirror-symmetrical manner with respect to an imaginary central axis.

[0023] Furthermore, it is preferably provided that the spring element is designed as a leaf spring and that the leaf spring is fastened to the holding element.

[0024] It is preferably provided that the holding element comprises a pressing element and a receiving element, the receiving groove is formed in the receiving element, the pressing piece is formed as a section of the pressing element and is guided with prestress by means of a tensioning spring so as to be movable on the receiving element. By moving the pressing element relative to the receiving element, an introduction position and a working position of the holding element and the crimping connection that are particularly advantageous for the operator can be achieved.

[0025] Preferably, it can also be proposed for the extrusion piece and the receiving piece that the extrusion piece has a pressing block and a pin fixed on the pressing block, the pin is movably arranged in a longitudinal hole in the receiving piece, the tensioning spring acts on the pin, and the pressing block can be pressed against the open end of the second receiving section through the tensioning spring.

[0026] Preferably, in particular for the case where the holder has a receiving part as a component, it is provided that the pressure piece is spaced apart from the open end of the second receiving section in the introduction position and can be detachably fastened to the holder, in particular the receiving part of the holder, in the introduction position.

[0027] Preferably, for releasably fastening the compression piece with the pressure piece to the receiving part, provision is made that in the introduced position a prestressed locking body, in particular a prestressed locking ball, engages in an annular groove in the pin.

[0028] With regard to the design of the holding element, it can be preferably provided that a first receiving groove for receiving the first contact element and a second receiving groove for receiving the second contact element are formed on the holding element.

[0029] Further advantages and features emerge from the description of preferred exemplary embodiments of the invention.

[0030] The present invention will be described and explained in more detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A perspective side view showing an embodiment of a crimping joint according to the present invention for use with a crimping pliers according to the present invention,

[0032] Figure 2 Shown in the first position Figure 1 A top view of a retainer of a crimping connector according to the present invention is shown in a three-dimensional view,

[0033] Figure 3 a perspective view showing a top view of the holder in a second position,

[0034] Figure 4 Show Figure 2 and Figure 3 A perspective view of a holder in FIG. 1 , which has a contact piece embedded in the holder and which is plugged onto the stripped end section of the cable before the crimping section of the contact piece is crimped,

[0035] Figure 5 Show Figures 1 to 4 A partially cutaway view of the retaining member along a first cross-section, and

[0036] Figure 6 Show Figures 1 to 5 The retaining member is along the direction relative to Figure 5 A partial cutaway view of a second section in which the sections are offset. DETAILED DESCRIPTION

[0037] Figure 1A three-dimensional side view of an embodiment of a crimping joint according to the utility model is shown. The crimping joint comprises an extrusion piece 1 and a retaining piece 2, wherein the extrusion piece 1 is detachably fixed to one of the two pliers halves of the crimping pliers, and the retaining piece 2 is detachably fixed to the other of the two pliers halves of the crimping pliers. In order to connect the crimping pliers, the extrusion piece 1 has a first connecting profile 21, the first connecting profile 21 having a channel between two pins, wherein guide surfaces are provided on the two pins. The first connecting profile 21 is used to fix the extrusion piece 1 to one of the two pliers halves of the crimping pliers, which is not further shown. On the side opposite to the side having the first connecting profile 21, the extrusion piece 1 has an extrusion surface 3, which is configured to be substantially flat in a defined extrusion section.

[0038] In addition to the extrusion piece 1, the crimping joint also includes a retaining piece 2, which has a second connecting profile 22 for connecting to the other of the two jaw halves of the crimping pliers. Here, the second connecting profile 22 also includes a channel between two pins, which has a guide surface and a stop section.

[0039] The squeeze piece 1 and the holding piece 2 can be detachably fastened with respective first and second connecting contours 21 , 22 to respective jaw halves of the crimping pliers, and more precisely such that the squeeze piece 1 or the holding piece 2 can be replaced when necessary.

[0040] The holder 2 is designed to receive the crimping section of the contact when the contact is inserted onto the conductor of the cable 23, the sheath of which has been stripped at the end. The contact has a crimping section 24, which is received in the holder 2 in a receiving groove which will be described in more detail below and which is also fixedly arranged with respect to the extruded part 1 in a spatially restricted manner. Figure 1 In the illustration of FIG. 2 , the crimping section 24 of the contact piece, which is not yet visible, protrudes beyond the substantially flat first surface 25 of the holder 2 toward the substantially flat extrusion surface of the extrusion piece 1. In particular, the contact piece is completely accommodated in the receiving groove over its entire longitudinal extension and protrudes only by a defined amount in the region of the crimping section 24 beyond the first surface 25 of the holder 2. The remaining sections of the contact piece, namely the contact section and the locking groove, are accommodated and fixed in the receiving groove in an embedded arrangement relative to the first surface 25 of the holder 2.

[0041] When the crimping pliers are operated, the crimping section 24 of the contact piece accommodated in the retaining part 2 is plastically deformed at least in sections, in particular over the entire length of the crimping section 24, by the crimping surface of the crimping piece 1, and the contact section is fixed to the stripped end of the cable 23 at least to this extent, so that further processing of the composite consisting of the cable 23 and the contact piece can be carried out.

[0042] Figure 2Show Figure 1 2, and more precisely, the cables and the contacts are not shown.

[0043] It can be seen that the holder 2 has a first receiving groove 4 for receiving the contact element, which is open at two opposite sides. The first receiving groove 4 is designed as a material recess in the first surface 25 of the holder 2 and extends continuously from the first side 26 of the receiving part 13 to the opposite second side 27, so that the first receiving groove 4 is designed to be open in the area of ​​the first side 26 and the second side 27. Here, the first side 26 and the second side 27 are connected to each other via the first receiving groove 4, so that the material recess of the first receiving groove 4 continues all the way into the first side 26 and the second side 27.

[0044] Here, the first receiving groove 4 has three receiving sections, namely a first receiving section 5, a second receiving section 6 and a middle section 7 formed between the first receiving section 5 and the second receiving section 6. The middle section 7 has a diameter, namely an extension transversely to the longitudinal direction of the first receiving groove 4, which is reduced relative to the corresponding diameter of the first receiving groove 4 in the region of the first receiving section 5 and the second receiving section 6, so that the middle section 7 is formed as a constriction. Here, the middle section 7 delimits the first receiving section 5 and the second receiving section 6, so that the first receiving section 5 is delimited in the longitudinal direction by the spring element 8, which closes the open end, and by the first joining edge 9 of the middle section 7. Furthermore, the second receiving section 6 is delimited at one end in the longitudinal direction by the second joining edge 10 of the middle section 7 and is open at the second end 16. Here, a pressing block 11 is arranged at the open second end 16 of the second receiving section 6, which can be abutted against the second joining edge 10 of the middle section 7.

[0045] from Figure 2 It can also be seen that the first receiving section 5 of the first receiving groove 4 is delimited at the end open at the first side 26 by a spring element 8 closing this end, the spring element 8 being designed as a leaf spring and being fixed to the holder 2 .

[0046] from Figure 2 It can also be seen that the retaining element 2 is constructed in two or more parts and has a pressure piece 12 and a receiving piece 13, wherein the first receiving groove 4 is constructed in the receiving piece 13. The pressure block 11 is constructed as a section of the pressure piece 12 and is guided in a prestressed manner by means of a tensioning spring 14 so as to be movable on the receiving piece 13. The tensioning spring 14 prestresses the pressure block 11 of the pressure piece 12 in the direction of the second joint edge 10 of the middle section 7 that defines the second receiving section 6.

[0047] The receiving part 13 is in particular designed as a one-piece, for example metal, molded part, in which the first receiving groove 4 is formed by removing material between the first side 26 and the second side 27. The pressure piece 11 or the pressure piece 12 having the pressure piece 11 is prestressed toward the receiving part 13 by means of a tensioning spring 14 so as to be arranged on the receiving part 13 in a non-detachable manner.

[0048] from Figure 2 It can also be seen that a first receiving groove 4 for receiving a first contact and a second receiving groove 19 for receiving a second contact are configured on the holder 2, especially on the receiving part 13 of the holder 2. Here, for example, one receiving groove can receive a "male" contact and the other receiving groove can receive a corresponding "female" contact, and the "male" contact and the "female" contact are configured relative to each other so that a contact section of one contact can be detachably inserted into a contact section of another contact.

[0049] In the exemplary embodiment of the crimped connection presented, the first receiving groove 4 and the second receiving groove 19 are designed identically or similarly for the corresponding contacts with the features that are important for the crimped connection, so that only one of the two contacts, namely the “male” contact with the contact section designed as a spring basket, will be described in more detail below. Figure 4 )'s first accommodating groove 4.

[0050] from Figure 2 It can also be seen that the first receiving groove 4 and the second receiving groove 19 are substantially designed in a mirror-symmetrical manner with respect to an imaginary center axis. In particular, it can also be seen that the first receiving groove 4 and the second receiving groove 19 are arranged parallel to each other.

[0051] Figure 2 The receiving part 13 is shown in an introduction position in which the pressure piece 11 is spaced apart from the open second end 16 of the second receiving section 6 so that the crimping section of the contact piece can be inserted into the second receiving section 6 without the front edge 33 of the pressure piece 11 coming into contact with the rear edge of the crimping section in the insertion direction. In this introduction position, the contact piece can be inserted into the first receiving groove 4. Figure 2 Starting from the insertion position shown in FIG. 1 , the fixing of the pressure piece 11 relative to the receiving part 13 can be released so that the front edge 33 of the pressure piece 11 presses against the rear edge of the crimping section in the insertion direction.

[0052] Figure 3 The position of the pressure piece 12 relative to the receiving part 13 is shown, wherein the pressure piece 12 is displaced maximally in the direction of the receiving part 13 under the action of the tensioning spring 14 in such a way that the front edge 33 of the pressure piece 11 abuts against the second side 27 of the receiving part 13 .

[0053] from Figure 3 It can be seen that the pressing piece has a substantially U-shaped recess 34 through which the sheath section of the cable 23 is guided ( Figure 4 ). In particular, the width of the recess 34 is dimensioned such that a sheath section of the cable 23 is accommodated substantially without play or with only slight play.

[0054] Through Figure 4 It can be seen from the comparison that when the pressing piece is pulled from Figure 2 The introduction position shown in Figure 3 When the tensioning position shown in FIG is released, the pressing piece is designed so that the surface section 35 of the front edge 33 of the pressing piece adjacent to the recess 34 contacts the rear end, in particular the rear end edge, of the crimping section 24 of the contact piece in the insertion direction.

[0055] like Figure 4 As shown, the sections of the first receiving groove 4 are configured to accommodate different adjacent sections of the contact element. Here, the first receiving section 5 of the first receiving groove 4 is used to accommodate the contact section 31 of the contact piece, the second receiving section 6 is used to accommodate the crimping section 24 to be pressed, and the middle section 7 is used to accommodate the third section 32 of the contact piece configured as a locking groove.

[0056] In this case, the first receiving section 5 , the second receiving section 6 , and the central section 7 of the first receiving groove 4 each have a contour with a U-shaped cross section.

[0057] The contour at the first receiving section 5 has a depth relative to the first surface 25 of the receiving part 13, which is dimensioned such that the contact section 31 does not protrude beyond the first surface 25 and is therefore accommodated in an embedded manner. The first receiving section 5 has a width, i.e. an extension transversely to the longitudinal direction between the individual groove edges, such that the contact section 31 is accommodated substantially without play or with only a small amount of play. The first receiving section 5 has a length, i.e. a longitudinal extension in the longitudinal direction, which is dimensioned such that the contact section 31 is accommodated substantially without play between the spring element 8 and the first joining edge of the intermediate section 7, wherein the spring element 8 can press the contact section 31 toward the first joining edge.

[0058] Accordingly, the intermediate section 7 has a depth which is dimensioned such that the third section 32 of the contact element forming the locking groove engages with respect to the first surface 25 of the receiving part 13 and is received substantially without play.

[0059] The second receiving section 6 has a depth that is smaller than the diameter of the crimping section 24 of the contact piece, so that the crimping section 24 is Figure 1As can also be seen in Fig. 2 , the second receiving section 6 protrudes from the first surface 25 of the receiving part 13 toward the extrusion surface of the extruded part 1. The second receiving section 6 has a width, i.e. a distance of the groove edge transversely to the longitudinal direction, which is greater than the diameter of the crimping section 24 and is dimensioned such that after the extrusion of the contour with an initial circular cross section, the substantially elliptical contour that is plastically deformed after the extrusion is spaced apart from the groove edge of the second receiving section 6 of the first receiving groove 4. In particular, the elliptical contour of the extruded crimping section 24 should be accommodated in the second receiving section 6 with only a small gap.

[0060] The second receiving section 6 has a length, i.e. a longitudinal extension between the second joining edge 10 of the middle section 7 and the second side edge 27, which is dimensioned such that it is slightly smaller than the longitudinal extension of the crimping section 24, so that the crimping section 24 protrudes by a small amount that can be set structurally on the second side edge 27 in the direction of the pressing block 11 of the pressing piece 12. In particular, it is provided that the crimping section 24 can abut against the middle section 7.

[0061] from Figure 4 Starting from the introduction position shown in the figure, the crimping section 24 can be squeezed by operating the crimping pliers, in which the contact piece is accommodated in the receiving groove of the receiving piece 13 and the crimping section 24 is pressed toward the second joining edge 10 of the middle section 7 by the pressing piece 12 prestressed by means of the tensioning spring 14.

[0062] Figure 5 A longitudinal section is shown, wherein the section is arranged such that the section extends through the pin 15 .

[0063] Can Figure 5 As can be seen in the figure, the pressure piece 12 has a pressure block 11 and a pin 15 fixed to the pressure block 11, the pin 15 being arranged to be movable in a longitudinal hole 20 in the receiving part 13. The tensioning spring 14 acts on the pin 15, so that the pressure block 11 can be pressed toward the open second end 16 of the second receiving section 6 by the tensioning spring. The longitudinal hole 20 has a sliding sleeve at both ends so that the middle section of the pin 15 can be movably accommodated in the longitudinal hole 20 in a wear-reducing manner.

[0064] The pin 15 has a pin head 28, wherein the tensioning spring is arranged between the pin head and the first side 26 of the receiving part 13. The tensioning spring is arranged in particular on the side of the receiving part 13 opposite the pressure piece 11 which is prestressed by the tensioning spring, wherein the spring pressure is transmitted to the pressure piece 11 of the pressure piece 12 via the pin 15 extending substantially parallel to the first receiving groove 4. The pressure piece 11 is fixed to the end of the pin 15 by means of a rivet 29 which extends transversely to the pin 15.

[0065] Figure 5The pressure piece 12 is shown in a position in which the pressure block 11 has been moved as far as possible toward the receiving part 13 , toward the left in this view, under the action of the tensioning spring 14 .

[0066] Figure 5 It is also shown that a prestressed locking body 17, ie a prestressed locking ball, is arranged in the transverse hole 30 in the receiving part 13, wherein the locking body can engage in the annular groove 18 in the pin 15. Figure 5 Starting from the position shown in FIG. , the pin 15 moves to the right, that is, Figure 2 The locking body 17 is designed to have a low prestress so that the prestress can be easily overcome manually when the operator presses the push piece in the direction of the receiving part 13. If the locking body 17 comes out of the annular groove 18, the tensioning spring 14 pushes the push piece 12 together with the push piece 11 in the direction of the receiving part 13, i.e. Figure 5 Drag left in the view.

[0067] Figure 6 A longitudinal section is shown, wherein the section is relative to Figure 5 The view is offset, that is, the section extends centrally through the first receiving groove 4 in the receiving part 13. It can be seen that the spring element 8 is designed as a leaf spring that is fixed to the receiving part 13 by means of screws. The leaf spring closes the first receiving section 5, so that the first receiving section 5 is Figure 6 In the view of FIG. 5 , the first joint edge 9 of the middle section 7 is defined on the right by the leaf spring and on the left by the middle section 7. It can also be seen that the second receiving section 6 is limited to one side (at Figure 6 In the direction of the middle section 7 (to the right in the illustration), it is defined by the second joining edge 10 of the middle section 7. On the other side, Figure 6 On the left side in the illustration of , because the crimping section of the contact piece is not accommodated in the second accommodating section 6 of the accommodating groove, the pressing block 11 of the pressing piece 12 directly abuts against the side under the prestress of the tensioning spring 14.

[0068] Reference numerals list

[0069] 1 Extrusion

[0070] 2 Retaining parts

[0071] 3 Extrusion surface

[0072] 4 First storage tank

[0073] 5. First accommodation section

[0074] 6 Second storage section

[0075] 7 Middle section

[0076] 8 Spring element

[0077] 9 First joint edge

[0078] 10 Second joint edge

[0079] 11 Press Block

[0080] 12 Press piece

[0081] 13 Container

[0082] 14 Tension spring

[0083] 15 Pin

[0084] 16 Second end

[0085] 17 Locking body

[0086] 18 Annular groove

[0087] 19 Second storage tank

[0088] 20 longitudinal holes

[0089] 21 First connection contour

[0090] 22 Second connection profile

[0091] 23 Cables

[0092] 24 Crimping section

[0093] 25 First Surface

[0094] 26 First side

[0095] 27 Second side

[0096] 28 Pin Head

[0097] 29 Rivet

[0098] 30 lateral holes

[0099] 31 Contact section

[0100] 32 Section 3

[0101] 33 front edge

[0102] 34 Depression

[0103] 35 Surface segments

Claims

1. A crimping joint, which is used for a crimping pliers, which is arranged on the stripped end section of the conductor for crimping the crimping section (24) of the contact, characterized in that: The crimping connector comprises: A pressing piece (1) which can be detachably fixed to one of the two jaw halves of the crimping pliers, and A retaining element (2) which can be detachably fixed to the other of the two jaw halves of the crimping pliers, When the crimping pliers are actuated, the crimping surface (3) of the crimping piece (1) plastically deforms a crimping section (24) of the contact piece accommodated in the retaining piece (2) in a segment-defined manner. The retaining member (2) has a receiving groove which is open at two opposite sides, and the receiving groove is used to receive the contact member. The receiving groove comprises a first receiving section (5), a second receiving section (6), and an intermediate section (7) constructed between the first receiving section (5) and the second receiving section (6) and bounding the first receiving section (5) and the second receiving section (6), wherein the diameter of the intermediate section (7) is smaller than the diameter of the first receiving section (5) and smaller than the diameter of the second receiving section (6), The first receiving section (5) is delimited by a spring element (8) closing the open end of the first receiving section (5) and by a first joining edge (9) of the intermediate section (7), and The second accommodating section (6) is defined by a second joining edge (10) of the middle section (7), and a pressing block (11) is arranged at the open end of the second accommodating section (6) and can be abutted against the second joining edge (10) of the middle section (7).

2. The crimping connector according to claim 1, characterized in that: The receiving groove is configured to be mirror-symmetrical with respect to an imaginary center axis.

3. The crimping joint according to claim 1 or 2, characterized in that: The spring element (8) is designed as a leaf spring and the leaf spring is fastened to the holder (2).

4. The crimping joint according to claim 1 or 2, characterized in that: The retaining member (2) comprises a pressing member (12) and a receiving member (13), the receiving groove being constructed in the receiving member (13), the pressing block (11) being constructed as a section of the pressing member (12), and the pressing block (11) being guided in a prestressed manner by means of a tensioning spring (14) so ​​as to be movable on the receiving member (13).

5. The crimping connector according to claim 4, characterized in that: The pressing piece (12) comprises the pressing block (11) and a pin (15) fixed to the pressing block (11), wherein the pin (15) is arranged to be movable in a longitudinal hole (20) in the receiving piece (13), the tensioning spring (14) acts on the pin (15), and the pressing block (11) can be pressed against the open end of the second receiving section (6) via the tensioning spring (14).

6. The crimping connector according to claim 5, characterized in that: The pressure piece (11) can be detachably fixed to the holding element (2) in an introduction position, wherein the pressure piece (11) is at a distance from the open end of the second receiving section (6).

7. The crimping connector according to claim 6, characterized in that: The pressure piece (11) can be detachably fixed to the receiving part (13) of the holding part (2) in the introduction position.

8. The crimping connector according to claim 7, characterized in that: In the introduced position, the prestressed locking body (17) engages in an annular groove (18) in the pin (15).

9. The crimping connector according to claim 8, characterized in that: In the introduced position, the prestressed locking ball engages in an annular groove (18) in the pin (15).

10. The crimping joint according to claim 1 or 2, characterized in that: A first receiving groove for receiving a first contact piece and a second receiving groove for receiving a second contact piece are formed on the holding piece (2).

11. A crimping pliers, the crimping pliers having a pliers half, characterized in that: The crimping pliers further comprise a crimping joint according to any one of claims 1 to 10 .

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