TWI579115B - Exchangeable magazine for crimping pliers - Google Patents

Description

Replaceable 匣 for bending pliers

The invention relates to a bender for bending a workpiece. Furthermore, the invention relates to one of the special components of the bending pliers. Finally, the invention relates to a device having components for forming a bender. In particular, a bender as the subject of the present invention is used to press a score into the outer surface of a contact element. For this purpose, the bender pliers comprise at least three crimping dies. The crimping dies are actuated in different directions. The crimping dies are marked for causing plastic deformation of the workpiece, in particular plastic deformation of the contact element. In some cases, we are interested in not deforming the entire circumference of the contact element. Instead, I am interested in causing only a single discrete score to enter the outer circumference of the contact element. Here, the scores should have a predetermined regular shape, wherein we are interested in the sensitivity and accuracy of the adjustable depth with the resulting score. Another requirement is that the scores of the results should not damage or deform the wire, and the wire will be connected to the contact element by the crimping process. In another aspect, a securely fixed connection between the contact element and the wire is required. These opposing requirements are particularly problematic when using bend pliers to couple parts for optical waveguides, especially fiberglass cables or polymer cables. For these applications, the excessive deformation of the optical waveguide due to too deep a score results in a reduced ability for light to be transmitted in the coupling region.

The Applicant's bending pliers are disclosed in particular in German Patent No. DE 101 40 270 B4 and German Patent No. DE 10 2005 003 615 B3. In these bending tongs, the four bending dies are guided in a guiding direction in the head of the bending tongs, the guiding direction having a seat for the workpiece, in particular a contact element. It is the radial orientation. The hand levers of the benders are pivotally moved by a transmission member or a drive member about which the rotatable ring member rotates. The rotatable ring member includes an actuating surface. With the rotational movement of the rotatable ring member, the actuating surfaces (similar to the cam) actuate the opposite actuating surfaces of the meandering modes. By the contact between the actuating surface of the rotatable ring member and the opposite actuating surface of the meandering die, a crimping force having an orientation in the radial direction of the socket is created. Further details of these benders can be taken from the description of Figures 1 to 6 of this patent application. These Figures 1 to 6 have been taken from German Patent No. 101 40 270 B4 and German Patent No. DE 10 2005 003 615 63.

Another prior art technique for producing a scored bender in the outer surface of a contact element by using at least three crimping dies that can be actuated in different directions, for example, also by the German patent application DE- No. 3,028,776 and US Pat. No. 3,177,885.

Purpose of the invention

One of the objects of the present invention is to provide a special component for a bender, a bender, and a set of components for a bender There are options for extension for use and operation and/or to reduce the required storage space (eg in a toolbox).

Solution of the invention

The object of the present invention is solved by the features of the separate items of the scope of the claims. Further preferred embodiments of the invention are described in the dependent claims.

Description of the invention

The invention is based on the finding that the bender as described above provides only a reduced option for the adaptability of the crimping process performed by the bender. For such conventional bending pliers, it may be possible to adapt the depth of the produced score by an adjustment unit. However, in addition to the depth of the score produced, the additional flexibility of such crimping processes is not possible. As an example, it is not possible to use the same bender for different work pieces to provide an option to fit the score or to accommodate the crimp process. Accordingly, for the bender known from the prior art, a plurality of different bender tongs are required to provide a plurality of different crimping processes.

Against this background, the present invention contemplates technical solutions known for different technical applications in which there are only two flanged dies. For these known applications, the two crimping dies are moved toward each other in an axial movement for bending the electrical connector, the pipe connector, the fitting, or the cable end sleeve set. The German Utility Application No. DE 20 100 031 U1 and the German Patent No. DE 10 2008 012 011 B3 disclose a bender with a replaceable two-bend half mold held at the head of the bend pliers. Here, the flanged mold half is at the head of the bender by using a tongue-and-groove joint to make a flat The freedom of movement is maintained.

For use in a particular embodiment of the invention for a bender, the replaceability of the meandering die is provided for the first time, with at least three crimping dies that move in different directions. This first alternative provides the option of using different crimping dies, for example having different flange profiles and/or different flange depths associated with the same head of the benders. These embodiments of the present invention extend the use of such benders, such as options for different work pieces, for creating contours of large variability scores and/or options for extending the depth of the scores. In the prior art, the preparation of a plurality of different crimping processes requires a plurality of pipe bending pliers. According to the invention, it is possible for the first time to use the same head of the pipe bending pliers in relation to different bending modes. Or ontology. The specific embodiment of the present invention results in a reduction in manufacturing cost when compared to the cost for manufacturing a plurality of bend pliers. Moreover, embodiments of the present invention reduce the cost of acquisition for the craftsman. The invention also reduces the number of tools and the total weight of the tool that must be carried by the craftsman.

The invention is not based on the pure transfer of a replaceable flanged half-mold, such as a flanged die of this type having at least three crimping dies, in German Utility Application No. DE 20 100 031 U1 and German Patent No. 10 2008 012 011 The person disclosed in B3. In addition to this transfer, the present invention is also based on the discovery that it takes a lot of time to disassemble a plurality of single crimping dies of a set of crimping dies and assemble a new set of crimping dies and a single crimping die and the elbow The head of the forceps. These workpieces also require the dexterity of the craftsman's hand at the site and the precise insertion of each of the flanged molds. An assembly process for a new set of flanged dies that requires all of the flanged dies to be positioned in their correct positions, where the actuation tables are The face contacts the opposite actuating surfaces at a given location. The amount and duration of the assembly process increases as the number of flanged dies increases. Furthermore, during the assembly process of the second and third crimping dies, the craftsman must be careful that the previously assembled crimping dies do not leave their desired position.

In this context, the invention first suggests the use of alternatives. Here, the replaceable crucible can be made of a base body made of one part or a plurality of parts. The replaceable cassette includes a connection region for releasably connecting the replaceable file with the head of the bender. A number of connection types can be used in the connection area, such as by clamping, locking, tightening, the replaceable jaws, and the magnetic retention force between the heads and the like. At least three crimping molds that can be actuated in different directions are placed and "held together" in the replaceable jaw. Accordingly, with the design of the present invention, it can be ensured that the single crimping molds will not have no way to go during the replacement process of the crimping molds or during transport.

The alternative 匣 can perform another function: the alternative 匣 is possible to establish the guiding system for the degree of freedom required by the heming die during the crimping process. In a specific embodiment, the base body of the replaceable crucible establishes guidance of the crimping die during the crimping process. However, it is also possible that the crimping dies are guided relative to the base body with a plurality of remaining degrees of freedom. In this case, with the assembly process of the replaceable jaw and the head of the bender, the number of degrees of freedom of the flanged mold is reduced, and is required to be used to bend the workpiece. The direction of the substrate is in particular limited by a residual degree of freedom.

In another embodiment of the invention, the substrate body establishes an assembly unit having the crimping dies. The combination unit is releasably coupled to the head of the bender via the connection region. For the replacement of such crimping dies, in particular for changing the depth of the nicks and/or for the change of the contours of the nicks, it is only necessary to disassemble the head by a replaceable 匣Assemble another replaceable file with the head of the bender. It is also advantageous to integrate the flanged mold into the replaceable tether during storage of the unused flanged mold: in the use of the crucible, it is avoided that the single crimping mold becomes separated or lose. Furthermore, different types of crimping dies are not disturbed by each other. Instead, the different crimping dies are interconnected or placed in the raft by the replaceable cymbal. As a result, at the worksite, for the replacement of a set of crimping dies, it is not necessary to find the corresponding crimping dies of the desired pattern by a plurality of different crimping dies.

Alternative embodiments of the present invention including a coupling area are also possible. The coupling region is responsible for transmitting the bending die for the power of the bending die to the replaceable jaw by the head of the bending pliers. Only a single coupling area is possible. In another embodiment of the invention, a plurality of coupling regions are provided, for example each coupling region is labeled to an associated flange mode. The coupling area can be of any type. By way of a non-limiting example only, the coupling region may be established by a driver-seat-connected component or an actuating surface that cooperates with the opposite actuation surface of the bender's head.

The alternative of the present invention may have the advantage that the replaceable crimping die is held by the replaceable jaw in an interrelated position and/or orientation such that it may be in a predetermined position and / or assembly in the orientation According to this, it is not necessary to position and configure each of the crimping dies during the assembly process. The replaceable cassette is guaranteed to be in the assembly process, each of the crimping dies being tied in its predetermined position and/or orientation.

It is possible to hold and/or guide the crimping die in a plurality of connecting elements and/or guiding elements in the base body of the replaceable file or at the base body of the replaceable file. . For use in a particular embodiment of the invention, the substrate system is constructed by a guide plate member, such as a circular ring disk. The guide plate member includes a plurality of guide grooves or grooves having an orientation in the radial direction. These guiding grooves or grooves may be regularly or irregularly dispersed in the circumferential direction. In each guiding groove, a single crimping die is guided. For these embodiments, the alternative provides guidance for the crimping dies during the crimping process such that the guiding function is not required at the head of the bending tongs. In another aspect, the insertion of the flanged die and/or a suitable guide bolt in the head of the bender is made by the use of guide plates having the guide grooves or grooves. The fact that the guiding grooves can become unnecessary is due to the fact that the bending molds have been and are completely guided in the alternative. This makes the assembly process for the replacement of the crucible easy. Furthermore, incorrect operation or assembly of the lead grooves due to incorrect insertion of the flanged molds is avoided.

There are many options for the design of the guidance provided by the guiding grooves or grooves. To address only one non-limiting example, the guide can be provided by a guide shoe that slides in the guide grooves. In one embodiment of the invention, the crimping dies include guiding bolts, or the crimping dies can be coupled to the guiding bolts. These guiding bolts are guided at these guides Inside the groove or groove. In these guiding grooves, the sliding fit between the guiding bolts establishes a very low but reliable guidance with a desired single degree of freedom in the radial direction.

In general, it is also possible that each of the crimping dies includes only a single guiding bolt system, and the guiding bolts are guided in the guiding grooves. For this particular embodiment, in addition to the degree of freedom along the guiding groove, there is still a second rotational degree of freedom for the rotation of the flanged die about the longitudinal axis of the guiding bolt. This embodiment requires additional measures in the replaceable jaw or on the head of the bender to remove this additional degree of freedom with the assembled jaw. However, it is also possible for each of the crimping dies to include at least two guiding bolts, and the guiding bolts are guided in the guiding grooves or grooves. In this case, the interaction between the guiding grooves and the two guiding bolts results in the only remaining degrees of freedom along the guiding grooves. In a particular embodiment of the invention, the guide bolts comprise flat portions that are used to limit or avoid rotation of the crimping dies. Here, the flat portions are slidably guided between the restriction surfaces of the guide grooves. For this embodiment, only a single guide bolt of an associated crimping die avoids the possibility of the crimping die relative to the guiding plate member and to the rotating mechanism of the replaceable jaw. On the other hand, by at least one flat portion of the guide bolt, it is possible to increase the contact area between the guide bolt and the guide surface of the guide groove, which results in reduced contact pressure.

For the use of the versatility of the guide bolts, the guide bolts may serve another purpose (for example, in addition to providing a guiding function along the guide grooves and/or for limiting Outside of a rotary motion): for this In one embodiment, the guide bolts include a head that contacts the guide plate member on a side facing away from the crimping dies. In this embodiment, the guiding plate member is "blocked" or surrounded between the guiding grooves at the head of the guiding bolt and the crimping die. For this design, at least one of the guide bolts having the associated flanged die is locked from the guide plate member in a direction that is axially aligned with the longitudinal axis of the guide bolt.

The base body of the replaceable crucible can have any design. In a particular embodiment of the replaceable cartridge of the present invention, the base body is formed to have a cover member (e.g., a circular ring disk). By means of the cover, it is possible to at least partially cover the guiding grooves, the guiding bolts and/or the guiding plate. The cover prevents particles, fluids or dirt from entering the replaceable file and/or the bender head. In another aspect, the cover member can avoid contact between the guiding bolt, the bending mold, and/or other moving parts of the replaceable cymbal (moved by the large bending force during the bending process) The user who injured the bender. Damage to the workplace surrounding the operated bender can also be avoided.

In another embodiment of the invention, the attachment region includes a screw that is retained to the base body. These screws are threaded into the threaded bore of the bender head. To address only one non-limiting example, the screws may have a knurled head such that it is possible to rotate the head and the screw by hand without additional tools.

In another embodiment of the present invention, the crimping dies are held in the replaceable cymbal such that the crimping dies interact with the curved nipper head use. For this purpose, the replaceable jaw and the bender head can be "penetrated" or mixed into each other. In another embodiment of the invention, the crimping dies are protruded from the base body of the replaceable cymbal. In the event that the base body makes contact with the opposite surface of the bender head, the meandering die can enter at least one of the open interiors of the bender head. In the inner chamber, the crimping dies interact with the bender head, in particular by the interaction between the actuating surface of the bender head and the opposite actuating surfaces of the meandering dies.

The present invention also contemplates a plurality of interchangeable jaw benders having the type described above.

There are many options for the interaction between the bending mode of the bending pliers and the actuating elements of the bending pliers head. For a non-limiting example of only one of the plurality of options, the motion of the plurality of crimping dies in the cymbal can be coupled. For this embodiment, the crimping dies or the central drive or coupling elements for the crimping dies are actuated by the sole actuating element of the bender head. However, it is also possible that the type of drive pin and the actuating element or drive element of the like or the like engage the socket or coupling element of the crimping die.

In another embodiment of the invention, at least one receiving chamber for the crimping die of the replaceable crucible is made in the bender head. It is possible to provide a single continuous receiving space, such as an annular chamber for accommodating all of these bending dies. However, it is also possible to provide a plurality of receiving chambers, each of which houses an associated meandering die of one of the replaceable jaws. It is possible that at least one receiving chamber for the disassembled replaceable crucible is opened in one direction, the direction being transverse to the bending pliers The plane of the head or the plane of motion of the meandering dies. According to this, the opening direction brings the replaceable jaw into contact with the bender head, so that the crimping die protruding from the base body of the replaceable file enters the at least one receiving chamber. .

In another embodiment of the invention, the at least one receiving chamber can be limited or defined by a restraining surface. In the event that the replaceable tether is assembled with the bender head, the actuating surface of the bender head is pressed against the opposite actuating surface of the crimping die during the crimping process for application Or transfer the crimping force to the crimping dies. It is possible for the bender to include a drive mechanism that converts or transmits the movement of the hand lever into movement of the actuating surfaces. The movement of the actuating surfaces (due to interaction with the opposite actuating surfaces) results in movement of the hemming dies relative to a socket for the workpiece in a radial direction.

The actuating surface of each crimping die is provided in separate components or drive components. In one embodiment of the invention, a rotatable ring member is provided on the bender head. The rotatable ring forms the actuating surface. The rotatable ring rotates as the hand lever moves about the seat. The geometry of the rotatable ring defines the position and/or orientation and shape of the actuating surfaces. The use of the rotatable ring member forms a simple measure for actuating the flanged modes with the desired synchronization and the desired relationship of the depth of the score of each of the beading dies.

The actuating surfaces and the opposite actuating surfaces are only provided for the beveling process system such that the surfaces transmit the motion and force to the fendering process during movement in the radially inner direction. Flange mold. In this case, the movement of the crimping dies in the opposite direction must be caused by the user by different measures (e.g., by manually pushing the crimping dies in the radially outer direction). However, after the crimping process has been completed, it is also possible that the spring elements are responsible for pushing the crimping dies in the radially outer direction. In an embodiment of the invention, an actuating surface and an opposite actuating surface are provided, the actuating surfaces being used for movement of the crimping die in a radially inner direction and for use in the crimping die Movement in the radially outer direction. This embodiment increases the operational safety and makes the operation easier.

In a preferred embodiment of the invention, the bender includes a positive lock unit that simplifies the operation and increases the operational safety. The forced locking unit locks a plurality of crimping steps during the crimping process. The forcing locking unit locks the final arriving crimping step if the user only passes through some of the crimping steps, but not the full crimping stroke, and when the amount of power applied by the user is removed. By means of the forced locking unit, the movement of the bending dies is only permitted after the entire bending stroke has been passed. With the forced locking unit, it is possible to avoid the bending of the cable members that do not fulfill such requirements.

In addition to the previously discussed measures, an adjustment unit can be used to adjust the crimp stroke of the benders to adjust the maximum value of the openings of the flange molds in the closed state and/or Wait for the minimum opening of the flanged die, and (as a result of the trend) adjust the depth of the score.

Another suggestion of the invention relates to a set of components of a bender. Here, the bender can be formed with a bender head and/or body and a plurality of Replacement 匣. This group provides the option of using these benders to have the same bender body or head with a plurality of different turns, flange profiles, score depths and the like. According to this prior art, this plurality of operations requires a plurality of different bending pliers having different bending pliers heads.

Advantageous developments of the invention are derived from the scope of the claims, the description and the drawings. The advantages of the features and combinations of features recited at the beginning of the description are merely exemplary and may be used in another alternative or in addition, without necessarily obtaining the advantages in accordance with the specific embodiments of the invention. The scope of the protection is not changed, as defined by the scope of the appended patent application, the following is applied in relation to the original application and the disclosure of the patent: further features may be taken from the drawings, especially from a plurality of The design and dimensions of the components relative to each other, as well as the relative configuration and operational connections thereof. Combinations of the present invention that differ from the features of the specific embodiments or the features of the different claims are also possible, and are in the sense that they are not related to the selected reference of the scope of the claims. of. This is also relevant to the features described in separate drawings or when they are described. These features can also be combined with the characteristics of different patent applications. Furthermore, it is possible that further embodiments of the invention do not have the features discussed in the scope of the claims.

Referring now in more detail to the drawings, Figure 1 illustrates a bender 1 as known from the prior art. The bending pliers 1 comprise a bending pliers head 2. The fixed hand lever 4 and the movable hand lever 5 are connected by the bending pliers head 2, For relative pivotal movement about a common central axis 3. Each of the hand levers 4, 5 is provided with a handle 6 made of an elastomeric material.

In the region of the bender head 2, the fixed hand lever 4 continues into a guide body 7 (see also Figures 2 and 3) which is covered by a cover 8. The guiding body 7 and the cover 8 form a fixed unit along with the fixed hand lever 4 for uniform movement. As can be seen from Figure 3, the guiding body 7 comprises an annular recess 9. In the annular recess 9, the rotatable ring member 10 is guided for a rotational movement about the central axis 3. The rotatable ring member 10 is fixedly coupled to the movable hand lever 5 or forms a component of the movable hand lever 5.

The forcible locking unit 11 is interposed between the two hand levers 4, 5. The forced locking unit ensures that the crimping stroke of the bending pliers 1 is completed. It is only possible to open the bender 1 after the forced locking unit 11 has been opened at the end of the closing stroke for providing the subsequent opening stroke. An adjustment unit 12 is provided on the fixed hand lever 4. One of the components of the adjustment unit 12 is an adjustment screw 13, which is rotatable in the rotary bearing 14, but is not movable in the axial direction. The adjustment unit 12 cooperates with an adjustment element 15 (see Figures 3 and 4). The adjustment element 15 is adjustably coupled to the fixed hand lever 4. For this purpose, the adjustment element 15 is guided in a recess 16 in the fixed hand lever 4. The recess 16 provides a contour of a circular segment about the central axis 3. The associated restricted area or boundary of the adjustment element 15 also includes the shape of a circular segment about the central axis 3.

The forcible locking unit 11 comprises two parts, namely a serrated section 17 and a detent or ratchet 18 rotatable about a pivot. The serrated section 17 provided in a segment has a circular shape with the center of the circle at the central axis 3. This segment is also a component of the adjustment element 15. In other words: a restricted area of the adjustment element 15 forms the indented segment 17. When the adjustment member 15 is adjusted or moved relative to the fixed hand lever 4 toward the movable hand lever 5, the position of the indented segment 17 is changed. The ratchet or catch 18 is supported in a known manner by a spring (not shown). For the particular embodiment shown, at the movable hand lever 5, the catch or ratchet 18 is pivotally coupled in a fixed position. For a modification, it is also possible for the serrated section 17 to be formed at a fixed position at the movable hand lever 5, in which case the detent or ratchet 18 is attached to the adjustment element 15 link.

The minimum distance between the two hand levers 4, 5 is predetermined by a pair of stop elements. The pair of stop elements includes a stop element 19 and an opposite stop element 20. The stop element 19 can also be formed by or at the adjustment element 15 . In this case, the position of the stop element 19 can be (to the same extent as the position of the indented segment 17) adjustable relative to the fixed hand lever 4. The opposite stop element 20 has a fixed position on the movable hand lever 5. The four parts discussed above (such that the serrated section 17, the detent or ratchet 18, the stop element 19, and the opposite stop element 20) have a position relative to the hand levers 4, 5, A part of the forcible locking unit 11 and a part of the pair of stop elements are always associated with one of the hand levers 4, 5, and vice versa The part is associated with the other of the hand levers 4, 5.

As can be seen from Figures 3 and 4, the adjustment element 15 has a plate-like design. In the intermediate portion of the adjustment member 15, a slender hole 21 is provided. One of the restricted apertures 21 defines a wedge-shaped surface 22. The wedge surface 22 is inclined at an angle which is inclined relative to the main extension direction of the adjustment element 15 formed by the plate member 23. A wedge 24 extends through the elongated aperture 21. The wedge 24 is adjustable in a direction perpendicular to the major epitaxial plane of the panel 23. The wedge 24 includes a wedge surface 25 that mates with the tapered surface 22 of the adjustment element 15. Again, the wedge 24 includes a threaded bore 26. The adjustment screw 13 extends through the wedge 24. The adjustment screw 13 (as described above) is rotatably, but does not include an axial degree of freedom. The adjustment screw 13 includes an opposite thread for mating with the thread of the bore 26 of the wedge 24. The rotation of the adjustment screw 13 of the adjustment unit 12 causes the movement of the wedge 24 relative to the adjustment element 15. According to this (due to the contact of the two wedge surfaces 22, 25), the adjustment movement of the adjustment element 15 about the central axis 3 relative to the fixed hand lever 4 is towards the movable hand lever 5 (or in the opposite direction) ) was caused. This adjustment movement is illustrated by the double arrow 27 in Figures 3 and 4. With the rotation of the adjusting screw 13 of the adjusting unit 12, the adjusting member 15 is displaced relative to the fixed hand lever 4. With this movement or adjustment, the serrated section 17 and the stop element 19 move in the same manner and move away from the fixed hand lever 4 and towards the movable hand lever 5 to the same extent (or in the opposite direction) ). For monitoring the position or direction of the movement, the plate 23 of the adjusting element 15 forms a scale 29 with the cover 8 or the fixed hand lever 4 (figure 1) Match indicator 28. Figure 1 also shows an indication of the scores of the different depths that are related to the scale 29.

Figures 3 to 6 show further details of the bending pliers 1. Four crimping dies 30 are movable in the guiding body 7. The crimping dies 30 are displaceably guided in the radial guiding grooves 31 of the guiding body 7. For the particular embodiment shown, the degrees of freedom of the crimping dies 30 have a radial orientation relative to the central axis 3. By virtue of this degree of freedom, the crimping dies 30 are displaceable relative to the fixed hand lever 4. The crimping dies 30 have a pointed or flanged profile 32 at their faces facing the central axis 3 and the free end of the socket. The tip or flange profile 32 is indicated for leaving a score in the contact element (not shown) to be crimped as the bender 1 is actuated. For the particular embodiment shown, there are four scores left at the same score depth. The number of crimping dies 30 is at least three. However, it is also possible to provide four (as shown) or more crimping dies 30. For preparing the crimping process, the contact element (usually a sleeve) and the cable or wire are introduced into a socket for the workpiece. The contact element is then crimped along with the cable or wire. The radial movement of the crimping dies 30 is achieved by the closing stroke of the hand levers 4, 5 as they move toward each other during the crimping process, and with the opening movement of the hand levers 1 Caused by a reopening stroke in the opposite direction. For providing the crimping stroke, the rotatable ring member 10 (attached to the movable hand lever 5) includes a cam surface or an actuating surface 33, each cam surface or actuating surface 33 and a further crimping die 30 Related. The cam surface or actuating surface 33 mates with a corresponding opposing actuating surface 34 at each of the crimping dies 30. The actuation surfaces 33 are rotatable relative to the rotation The ring member 10 is inclined in the tangential circumferential direction. The opening stroke of the crimping dies 30 is also controlled by movement and by an established latch. For this purpose, the rotatable ring member 10 includes a cam surface or actuating surface 35 (as can be seen in the drawings) that cooperate with the corresponding opposite actuating surface 41 at the crimping die 30. After an inaccurate or incomplete crimping process, the bending pliers 1 can rest in a partially compressed state of the hand levers 4, 5. In this state, the crimped profile 32 of the crimping die 30 can be hooked or clamped with the contact element. By the opening force exerted on the handle levers 4, 5, it is possible to force the opening movement of the bending pliers 1 and to separate the crimping dies 30 from the contact elements. During this normal operation, an opening spring 36 is used for the opening stroke of the two hand levers 4, 5. The opening spring 36 can be formed by an element like a sleeve and has a cylindrical compression spring therein. It is possible that the opening spring 36 is located in or supported by the fixed hand lever 4.

Figure 3 also shows a contact spring 37 which can be a tube spring or a rod spring. The contact springs 37 are used to ensure that the wedge surfaces 22, 25 are in contact at all times.

For another embodiment, FIG. 4 is an illustration similar to that of FIGS. 1 through 3. The crimping dies 30 are not shown such that they are likely to see a recess in the intermediate region of the guiding body 7. The rotatable ring member 10 is located in the recess and has the freedom of rotation. The rotatable ring member 10 is integrally formed by the movable hand lever 5. Each of the recesses having an open cross section for the meandering dies forms an actuating surface 33 for the closing stroke and an additional actuating surface 35 for the opening stroke. The The guiding body 7 and the rotatable ring member 10 are in the same plane of the main extension plane of the bending pliers head 2. Thus, the use of the rotatable ring member 10 and the crimping dies 30 does not increase the size of the bender head. This particular embodiment is used in particular to bend a contact element having a small axial length and/or a small diameter.

In contrast to Figure 3, Figure 4 shows the different positions of the various components of the forced locking unit 11. On the other hand, according to Fig. 3, the indented segment 17 has been placed at the fixed hand lever 4, and for the specific embodiment shown in Fig. 4, the indented segment 17 is fixed to the movable hand lever. 5. The adjustment element 15 formed by the plate member 23 is still guided and adjustable about the central axis 3 along the segment of a circle by the fixed hand lever 4. The adjustment element 15 is extended towards the movable hand lever 5 for pivotally coupling the detent or ratchet 18 at the adjustment element 15. A hook spring for the catch or ratchet 18 and a hook point at the adjustment element 15 are indicated. Figure 4 shows the adjusted closed state of the benders, wherein the stop element 19 and the opposite stop element 20 are in contact with each other, as defined by the continuously adjustable end position limit.

Figures 5 and 6 show a bender head 2 that is unrelated on any type of drive mechanism. The guide body 7 is shown with an annular recess 9 for receiving both the rotatable ring member 10 and the meandering dies 30. The rotatable ring member 10 and the crimping dies 30 do not overlap in this protruding portion. According to this, a very narrow structure is formed (Fig. 6). The guiding body 7 is coupled or connected to a portion of the driver. Conversely, the rotatable ring member 10 is coupled or connected to another portion of the driver. This connection is made by bolts 38 The bolts 38 are coupled for transmission, for example, to a movable hand lever 5. The associated other hand lever 4 can also be movably connected to the guiding body 7. A positioner 42 can also be coupled or coupled to or coupled to the guide body 7. The locator 42 is used to accurately position the contact element to be crimped in the socket and to position it relative to the bender head 2. Another bender of this type is also known from German Patent No. 10 2005 003 617 B3. Within the framework of the present invention, the same basic module of the bender is possible to operate by means of a lever with different bender heads. At least one bender head is adapted for use with at least one replaceable file, as described hereinafter. Alternatively, at least one additional bender head can be used for any other type of bender use, especially for different types of crimping processes and/or for cutting a work piece or any other process. Ready to work.

7 to 13 show the bending pliers 1 of the present invention. In general, the functions of these bending pliers 1 are similar to the bending pliers shown and described with respect to Figures 1 to 6. The description of the specific embodiments of the present invention has been used for the same reason, and the same reference numerals as those in the specific embodiments of Figs. 1 to 6 have been used. This is the case in which the design, geometry and/or function are substantially the same as those of the components.

Figure 7 shows a bender pliers 1 having a fixed hand lever 4 and a movable hand lever 5. The bender 1 has an adjustment unit 12 and a positioner 42. The adjustment unit 12 and the positioner 42 form a selective component of the bender 1 . A replaceable crucible 46 is held in a base body 43 by connecting members 44a, 44b (here, screws 45a, 45b) to form the Bender head 2.

Figure 8 shows an alternative cassette 46 separate from the base body 43 for the released connecting elements 44a, 44b. The base body 43 is attached to a region of the bender head 2 in which a guide body 7 is formed, the guide body 7 being associated with the fixed hand lever 4. Furthermore, the guiding body 7 is formed with the rotatable ring member 10 associated with the movable hand lever 5. The guiding groove 47 (having a radial position and a guiding groove 31 corresponding to the guiding groove 31 according to FIGS. 1 to 6) or the guiding body 7 and the recess 48 form a receiving chamber 49. In the first rough approximation, the receiving chambers 49 have an L-shape in the view shown. The bending pliers 1 for use in Figures 7 to 13 has four crimping dies, in which four guiding grooves 47, four recesses 48, and four are regularly seated or interspersed in the circumferential direction. Room 49. In the region of the rotatable ring member 10, the receiving chambers 49 are constrained in the radially outer direction by the actuating surface 33 and are constrained in the radially inner direction by the actuating surface 35. The actuating surfaces 33, 35 are inclined relative to a tangential orientation (at least partially such actuating surfaces). The receiving chambers 49 are offset relative to the contact surface of the base body 43. This contact surface is formed by the annular guide body 7 on the side facing the replaceable jaw 46.

Conversely, FIG. 8 shows the replaceable crucible 46, which is shown by the side facing the side of the base body 43 when viewed from the side facing away from the base body 43 (where the crimping dies 30 are covered). Replaceable 匣46. The replaceable crucible 46 is also formed with a base body 51. The base body 51 has a plate-like design. The base body 51 includes a circular ring disk 52 and a circular annular guide plate member 53. The circular ring disk 52 and the guiding plate The pieces 53 are positioned axially with each other. The inner diameter of the circular ring disk 52 is slightly smaller than the outer diameter of the guide plate member 53. In a region where the circular ring disk 52 overlaps the guide plate member 53, the mounting member 54 fixes the guide plate member 53 to the circular ring disk 52. The connecting elements 44a, 44b extend through the recess of the circular ring disk 52.

As can be seen in particular from Figure 10, the guiding plate member 53 comprises four guiding grooves 56 extending from the edge 55. The guiding grooves 56 are closed in the inner region. In the assembled state, the guiding grooves 56 are covered by the overlap of the circular ring disk 52 in their radially outer end regions. The guide bolts 57 are carried by each of the crimping dies 30, transverse to the main epitaxial planes of the four crimping dies 30. The guide bolt 57 is screwed into the crimping die 30 or into a bore of the crimping die 30. The guide bolt 57 includes a head 58 in an end region that protrudes from the crimping die 30. A guiding area 59 is located between the beading die 30 and the head 58. As shown in Fig. 11, it is possible to guide or insert the crimping dies 30 from the radially outer openings of the guiding grooves 56, so that the guiding bolts 57 in the guiding region 59 are radially guided at The guide grooves 56 are in the same. The guide plate member 53 is "blocked" between the flanged die 30 and the head 58 of the guide bolt 57. Accordingly, it is only possible to remove the crimping die 30 from the guiding plate member 53 by moving the bending die 30 in the radially outer direction away from the guiding groove 56 by the guiding bolt 57. 30. The assembly of the circular ring disk 52 and the guiding plate member 53 and the fixing members 54 and the above-mentioned fixing members 54 are overlapped, and the guiding bolts 57 are arranged in the radially outer direction by the guiding grooves 56. It is impossible to leave. This is due to the diameter of the guide bolt 57 in the radially outer direction. The fact that the movement is limited by the collision of the head 58 with the inner surface 39 of the circular ring disk 52. For this assembled state, the crimping dies cannot be removed by the guide plate member 53 (and by the circular ring disk 52).

In general, despite the connections described above, it will still be possible to rotate the crimping dies 30 about the longitudinal axis of the guide bolts 57. However, as can be seen in Figure 11, this rotational freedom is blocked by the parallel and opposite flat portions 60 of the guiding region 59. The flat portions 60 contact the guiding grooves 56 at the guiding surface 61 for avoiding rotation. The thickness of the circular ring disk 52 is slightly greater than the height of the head portion 58 such that the guide bolts 57 are not on the side facing away from the pipe wrench head 2 by the circular ring disk 52. protruding. For the particular embodiment shown, the interior space (which is constrained in the radially outer direction by the contact surface 60 and is constrained in one direction by the guide plate member 53 and the guides The head 58 of the bolt 57 moves in this interior space) is closed by an additional circular ring disk 62 that is secured to the circular ring in a manner not further specified. The outside of the disk 52. The circular ring disk 62 includes an inner bore that is internally bored with the guide plate member 53 and that includes the same diameter. Through these two internal bores, the sockets of the bender 1 are made available for access to the workpiece. In the manner described, the replaceable jaw 46 forms a unit 63 that is held in the unit 63 in a secure or loss-preventing manner, but has a guide bolt for use in the unit 63. The degree of freedom of radial displacement along the guide groove 56.

a base body for assembling the replaceable cymbal 46 and the bending tongs 1 by contacting the contact surface 63 formed by the circular ring disk 52 by The guiding body 7, the bending pliers head 2, or the contact surface 50 formed by the base body of the bending pliers 1 is formed. In this assembled state, the connection of the replaceable jaw 46 to the base body 43 of the bender 1 is provided. In this assembled state, the guide plate member 53 enters the inner bore of the annular guide body 7. A guiding and/or centering effect is provided by the interaction of the cylindrical inner surface of the annular guiding body 7 and the cylindrical outer surface 64 of the guiding plate member 53. Furthermore, in the assembled state, the crimping dies 30 enter the receiving chambers 49. Preferably, the ingress movement has been used, the actuation surface 33 of the rotatable ring member 10 is in contact with the opposite actuation surface 34 of the crimping die 30, and/or the actuating surface of the rotatable ring member 10. Contact with the opposite actuation surface 41 of the crimping dies 30 is established. This guiding or insertion movement can be facilitated by suitable guiding or central positioning means, phase or inclined surfaces. Moreover, the crimping dies 30 are held in a predetermined radial position in the alternative lanthanide (as opposed to the particular embodiment shown). This radial position can be provided by a spring element or a suitable retention, locking or holding element. In this assembled state, the benders are ready for use.

The assembly process requires the movement of the replaceable cymbal 46 to be inserted into the base body 43, the guiding or inserting of the bending dies 30, and the guiding plate 53 while inserting the annular guiding body. The contact of the contact surface 63 at the contact surface 50 is established, and finally the assembled state is locked by the connecting elements 44a, 44b.

Alternatively, the disassembly process requires removal or release of the connecting elements 44a, 44b for allowing the replaceable cassette 46 to be treated as the sole unit. The base body 43 of the bender is removed and all of the crimping dies 30 are simultaneously removed by the receiving chambers 49.

The connection region 64 of the replaceable crucible 46 is formed by a contact surface 63 and the connecting members 44a, 44b. The opposite actuating surfaces 34, 41 of the crimping dies 30 form a coupling region 66 of the cymbal 46. The coupling region 66 has a function of transmitting power from the base body 43 to the replaceable cassette 46 in the opening direction and the closing direction, that is, in the assembled state, to the bending molds 30. A socket 67 for the work piece is radially formed in the crimping die 30. This socket 67 can extend through both the replaceable jaw 46 and the base body 43 of the bender jaws 1. In the assembled state, the socket 67 is formed by the cooperation of the base body 43 and the replaceable jaw 46.

Known flanged dies for use with a single replaceable crimped half mold, such as those disclosed in German Patent No. DE 20 100 031 U1 and German Patent No. DE 10 2008 012 011 B3 The mold halves are moved into a single direction during the crimping process, that is, the degree of freedom along a translational motion or the degree of freedom of rotation along a pivot. The direction of one direction is related to the direction of the flange, and the direction of the other direction is related to the movement of the reverse or opening. Alternatively, in accordance with the present invention, the crimping dies 30 are moved in two, three or more directions. For the particular embodiment shown having four crimping dies 30, the movement of the two opposing crimping dies 30 has the same orientation and has different orientations, and vice versa. It has a direction that is 90 degrees different from the direction discussed above.

A set of pipe bending pliers includes a plurality of replaceable 匣 46 systems, as in This is shown in Figure 9. It is possible that the plurality of replaceable turns 46 form a slow component of the set. However, in the unactuated or used state, the replaceable jaws 46 are provided with a protective member (eg, a protective cover that covers the front side of FIG. 9 for protection of the forming of the bending molds from Damage and/or pollution) is also possible. However, for this unused state, a plurality of replaceable cassettes 46 are inserted into a holding device or cover member for providing a desired protective system.

The present invention encompasses two specific embodiments: - wherein the movement and guidance of the flanged die has a pure radial orientation towards the socket; - and embodiments wherein the motion and guidance of the flanged die has only one A radial component facing the seat.

1‧‧‧bend pipe wrench

2‧‧‧Bender head

3‧‧‧ center axis

4‧‧‧Fixed hand lever

5‧‧‧ movable hand lever

6‧‧‧Hands

7‧‧‧Guided ontology

8‧‧‧ Cover

9‧‧‧ recess

10‧‧‧Rotating ring

11‧‧‧Forced locking unit

12‧‧‧Adjustment unit

13‧‧‧Adjustment screw

14‧‧‧Rotary bearings

15‧‧‧Adjusting components

16‧‧‧ recess

17‧‧‧Sawtooth fragments

18‧‧‧掣子 or ratchet

19‧‧‧stop components

20‧‧‧ opposite stop elements

21‧‧‧Slim-shaped holes

22‧‧‧Wedge surface

23‧‧‧ boards

24‧‧‧ wedge

25‧‧‧Wedge surface

26‧‧‧Drilling

27‧‧‧ double arrow

28‧‧‧ indicator

29‧‧‧ scale bar

30‧‧‧bending die

31‧‧‧ Guide groove or groove

32‧‧‧Flange contour

33‧‧‧ actuation surface

34‧‧‧optical surface

35‧‧‧acting surface

36‧‧‧Open spring

37‧‧‧Contact spring

38‧‧‧ bolt

39‧‧‧Internal surface

41‧‧‧optical surface

42‧‧‧Locator

43‧‧‧Base body

44a‧‧‧Connecting components

44b‧‧‧Connecting components

45a‧‧‧screw

45b‧‧‧screw

46‧‧‧Replaceable匣

47‧‧‧ guiding groove

48‧‧‧ recess

49‧‧‧Acceptance room

50‧‧‧Contact surface

51‧‧‧Base body

52‧‧‧Circular ring

53‧‧‧Guide plates

54‧‧‧Fixed components

55‧‧‧ edge

56‧‧‧ Guide groove

57‧‧‧ Guide bolt

58‧‧‧ head

59‧‧‧Guide area

60‧‧‧flat section

61‧‧‧ guiding surface

62‧‧‧Circular ring

63‧‧‧Contact surface

64‧‧‧Contact surface

65‧‧‧Connected area

66‧‧‧coupled area

67‧‧‧ Seat

The invention is best understood by reference to the following drawings. The components in the drawings are not necessarily to scale, and the principles of the present invention are clearly illustrated. In the drawings, like reference numerals refer to the corresponding parts throughout the several views.

Figure 1 is a front view of a bender according to German Patent No. DE 10 2005 003 615 B3 (previous art).

Figure 2 is a side view of the bender of Figure 1 (previous skill).

Figure 3 shows the internal structure of the bend pliers according to Figures 1 and 2 (prior art).

Figure 4 shows the bender according to Figure 3 without a crimping die (previous skill).

Figure 5 is a view of a bender head having a crimping die used in a bender according to Figures 1 to 4 (previous art).

Figure 6 shows a cross-sectional view through the head of the bender according to Figure 5 and along section VI-VI (prior art).

Figure 7 is a perspective view showing the bent pipe wrench of the present invention having a base body and an assembled replaceable file.

Figure 8 is a perspective view of the bender of Figure 7 and disassembling the replaceable file from the base body.

Figure 9 is a perspective view showing an alternative cymbal of the present invention.

Figure 10 is an exploded perspective view of the alternative 匣 according to Figure 9.

Figure 11 shows a crimping die assembled via a flat guiding bolt, which is located in a guiding groove of the guiding plate member for forming an assembled group of components, according to Figure 9. And 10 form an alternative form of the invention.

Figure 12 is an exploded view of the bending pliers of the present invention and having an alternative crucible according to Figures 7 and 8.

Figure 13 shows a bender of the present invention, wherein a solid line illustrates the open state, and the dashed line illustrates a closed state, and a zero covering the receiving chamber in the head of the bender and the crimping die located therein The components are not shown.

7‧‧‧Guided ontology

10‧‧‧Rotating ring

12‧‧‧Adjustment unit

33‧‧‧ actuation surface

35‧‧‧acting surface

42‧‧‧Locator

43‧‧‧Base body

44a‧‧‧Connecting components

44b‧‧‧Connecting components

45a‧‧‧screw

45b‧‧‧screw

46‧‧‧Replaceable匣

47‧‧‧ guiding groove

48‧‧‧ recess

49‧‧‧Acceptance room

50‧‧‧Contact surface

52‧‧‧Circular ring

65‧‧‧Connected area

Claims (17)

A replaceable crucible (46) for a bender (1), which is used to bend a workpiece, in particular for pressing a score into an outer contour of a contact element, the replaceable The crucible (46) includes at least three crimping dies (30) that are guided in a guiding direction toward a socket (67) for the workpiece. A replaceable crucible (46) for a bender (1), as claimed in claim 1, having a) a base body (51), wherein b) the crimping molds (30) are relative to the base The body (51) is displaced, c) the base body (51) and the crimping dies (30) form a unit having a connecting region (65) for connecting the replaceable cymbal (46) and the bend A pipe wrench head (2), and d) a coupling region (66) is provided for transmitting a power amount from the pipe wrench head (2) to the replaceable jaw (46), the amount of power being The markings are used to move the crimping dies (30). An alternative cymbal (46) for a bender (1), as in claim 2, wherein the base body (51) is formed with a guide plate member (53) having a radial direction A guide groove or groove (56) is provided in which the crimping die (30) is guided in the radial direction in each of the guiding grooves or grooves (56). A replaceable crucible (46) for a bender (1), as in claim 3, wherein the crimping die (30) comprises a guide bolt (57), or wherein the crimping die (30) ) can be coupled to guide bolts (57) that are guided in the guide grooves or grooves (56). A replaceable crucible (46) for a bender (1), as in claim 4, wherein the guide bolts (57) comprise flat portions (60) that are in contact with the flat portions (60) A guiding surface (61) of the groove or groove (56) is guided for limiting or avoiding the rotational movement of the bending die (30). A replaceable crucible (46) for a bender (1), as in claim 4 or 5, wherein the guide bolt (57) comprises a head (58), the head (58) contact surface Guide plates (53) on the sides away from the meandering dies (30). One of the first to fifth aspects of the patent application is a replaceable crucible (46) for a bender (1), wherein the base body (51) is formed with a cover member, the cover member being particularly A circular ring disk (62) is formed. One of the first to fifth aspects of the patent application is a replaceable crucible (46) for a bender (1), wherein the joint region (65) is held by a screw (the) of the base body (51) 45a, 45b) are formed wherein the screws (45a, 45b) are marked for threaded bores to be screwed into the bender head (2). One of the first to fifth aspects of the patent application is a replaceable crucible (46) for a bender (1), wherein the crimping die (30) is transverse to the base body (51) The curved planes (30) protrude in the direction of the plane of the movement. A bender (1) having at least one replaceable file (46) of one of claims 1 to 9. A bender (1) according to claim 10, wherein a) the bender head (2) comprises at least one receiving chamber (49) for a crimping die of the replaceable jaw (46) ( 30), b) wherein the replaceable crucible (46) is removed, the at least one accepting The chamber (49) is opened in a direction transverse to the plane of movement of the crimping dies (30). The bender (1) of claim 11 wherein a) the at least one receiving chamber (49) is limited by an actuating surface (33, 35) forming a coupling region, wherein a replaceable jaw (46) mounted on the bender head (2), the actuating surfaces (33, 35) contacting the opposite actuating surfaces (34, 41), b) of the crimping die (30) and A drive mechanism is provided which transmits the movement of the hand lever (4, 5) into movement of the actuating surface (33, 35), resulting in the crimping die (30) on the seat (67) Movement in the radial direction. A bender (1) according to claim 12, wherein a rotatable ring member (10) is provided, the rotatable ring member (10) forming the actuating surfaces (33, 35), and the The rotating ring member (10) is rotatable about the socket (67) as the hand levers (4, 5) act. A bender (1) according to one of the claims 10 to 13, wherein a) an actuating surface (33) and an opposite actuating surface (34) are provided for causing the crimping die (30) The movement in the radially inner direction, and b) the actuating surface (35) and the opposite actuating surface (41) are provided for causing movement of the crimping die (30) in a radially outer direction. A bender (1) according to any one of claims 10 to 13, wherein a positive locking mechanism (11) is provided which locks a plurality of crimping steps and only after the bending has been completed After the entire stroke of the sideform (30), the benders are allowed to open. A bender (1) as claimed in claim 15 wherein an adjustment unit (12) is provided which is constructed and designed to adjust the crimp stroke. A set of bender pliers having a bender (1) and a plurality of replaceable jaws (46) of one of claims 1 to 9.