Crimping pliers die and crimping pliers

Abstract

The invention relates to a crimping pliers die (1) comprising two die half units (2, 3). The die half units (2, 3) are guided by a guide (51) relatively to each other over the crimping stroke. Crimping surfaces (40, 41) of the die halves (5) are formed by front surfaces of engaging ribs (37). The guide (51) comprises a guiding rod (43) formed by an end-sided thickening (42) of a rib (37) and/or the guide (51) comprises a guiding recess (50) formed by a guiding recess section (45) which connects two ribs (37) to each other. The crimping pliers die (1) can be used for crimping pliers which can e. g. be used for crimping wire end sleeves.

Claims

1. A crimping pliers die for crimping a workpiece comprising a) a first die half unit comprising a first die half and a second die half unit comprising a second die half, b) a guide guiding the first die half unit and the second die half unit relatively to each other over a crimping stroke, c) the guide comprising at least one guiding rod ca) which is held by the first die half unit and cb) which is guided in a guiding recess of the second die half unit, d) the first die half unit comprising first ribs, the second die half unit comprising second ribs, the first ribs and the second ribs engaging each other, the first ribs having first front faces that provide first crimping surfaces and the second ribs having second front faces that provide second crimping surfaces and e) the guiding rod being formed by a thickening arranged in an end region of at least one first rib of the first die half unit, and the guiding recess being formed by a guiding recess section which extends from an end region of at least one second rib of the second die half unit, the guiding recess having an open edge in a cross section and comprising a guiding surface having a shape of a segment of a cylinder, f) the thickening of the guiding rod being guided by the guiding surface.

2. The crimping pliers die of claim 1, wherein at least one of the first die half and the second die half is embodied as a powder spraying part or powder injection part.

3. The crimping pliers die of claim 1, wherein at least one of the first die half and the second die half comprises a bearing part by which it is possible to assemble the associated die half unit on the pliers jaw with a pivoting degree of freedom about a pivot axis having an orientation perpendicular to a pivoting plane of a pliers jaw.

4. The crimping pliers die claim 3, wherein the bearing part comprising a bearing body a) comprising a bearing body guiding surface having a shape of a segment of a cylinder with a guiding diameter and b) comprising an insertion surface, where an extension of the bearing body is smaller than the guiding diameter.

5. The crimping pliers die of claim 1, wherein a) at least one of the first die half unit and the second die half unit comprises a holding body and b) the associated die half is supported for being rotated about an axis of rotation by a holding body rotational bearing on the holding body, the axis of rotation having an orientation parallel to a guiding axis of the guiding rod and/or the guiding recess which supports the holding body.

6. The crimping pliers die of claim 5, wherein a latching device or a locking device is interposed between the holding body and at least one of the first and second die half, the latching device or locking device latching or locking the at least one of the first and second die half at predefined relative rotational angles between the holding body and the at least one of the first and second die half about the axis of rotation.

7. The crimping pliers die of claim 6, wherein a) the holding body and the at least one of the first and second die half comprise first and second guiding surfaces, aa) having an orientation perpendicular to the axis of rotation and ab) on which the holding body and the first die half are guided relatively to each other during the rotation about the axis of rotation, b) the first guiding surface comprising a recess wherein a latching element or locking element being biased by a spring is arranged and c) the second guiding surface comprising latching recesses or locking recesses wherein the latching element or locking element is arranged in the predefined relative rotational angles for providing a latching or locking effect.

8. The crimping pliers die of claim 5, wherein for the formation of the holding body rotational bearing the holding body comprises a bearing protrusion which has an orientation parallel to the guiding axis of the guiding rod and/or of the guiding recess and which extends through a rotational bearing bore of at least one of the first and second die half and which comprises an axial securing element.

9. The crimping pliers die of claim 1, wherein at least one of the first and second die half units comprises an insertion stop which defines an insertion depth for inserting a workpiece into a die accommodation formed by the die halves.

10. The crimping pliers die of claim 9, wherein a stop body is provided which a) is supported on the first or second die half by a stop body rotational bearing for being rotated about a stop body rotational axis, the stop body rotational axis having an orientation parallel to an accommodation axis of the die accommodation and b) comprises at least two insertion stops which are arranged with a distance from each other along a circumference of the stop body rotational axis.

11. The crimping pliers die of claim 10, wherein a stop body latching device or stop body locking device is provided which latches or locks the stop body in predefined stop body rotational angles of the stop body relative to the first or second die half.

12. The crimping pliers die of claim 11, wherein a) the stop body and at least one of the first and second die half comprise a first and second stop body guiding surface aa) which have an orientation perpendicular to the stop body rotational axis and ab) on which the stop body and the associated die half are guided relatively to each other during the rotation about the stop body rotational axis, b) the first stop body guiding surface comprising a recess wherein a stop body latching element or stop body locking element biased by a spring is arranged and c) the second stop body guiding surface comprising stop body latching recesses or stop body locking recesses wherein the stop body latching element or stop body locking element is arranged in the predefined relative stop body rotational angles for providing a latching or locking effect.

13. The crimping pliers die of claim 10, wherein for the formation of the stop body rotational bearing at least one of the first and second die half comprises a stop body bearing protrusion which extends through a stop body rotational bearing bore of the stop body and which comprises an axial securing element on a side of the stop body facing away from the at least one of the first and second die half.

14. The crimping pliers die of claim 1, wherein at least one of a) the two die half units, b) the two bearing parts, and c) the two die halves are identical.

15. The crimping pliers die of claim 1, wherein the at least one first rib is a single first rib such that the thickening is arranged in the end region of the single first rib, and wherein the at least one second rib is two adjacent second ribs such that the guiding recess section extends from an end region of the two adjacent second ribs.

16. The crimping pliers die of claim 1, wherein the first die half unit and the second die half unit are movable about and between an open position in which the first die half unit is a first distance from the second die half unit, and a closed position in which the first die half unit is a second distance from the second die half unit that is less than the first distance, and wherein in the closed position, at least a portion of the at least one guiding rod is positioned in the guiding recess having the guiding surface in the shape of a segment of a cylinder.

17. The crimping pliers die of claim 1, wherein the at least one guiding rod comprises a guiding surface in the shape of a segment of a cylinder.

18. The crimping pliers die of claim 1, wherein the thickening is coupled only to the end region of the at least one first rib of the first die half unit.

19. Crimping pliers for crimping a workpiece, the crimping pliers comprising pliers jaws which hold a first and second die half units of a crimping pliers die comprising: a) a first die half unit comprising a first die half and a second die half unit comprising a second die half, b) a guide guiding the first die half unit and the second die half unit relatively to each other over a crimping stroke, c) the guide comprising at least one guiding rod ca) which is held by the first die half unit and cb) which is guided in a guiding recess of the second die half unit, d) the first die half unit comprising first ribs, the second die half unit comprising second ribs, the first ribs and the second ribs engaging each other, the first ribs having first front faces that provide first crimping surfaces and the second ribs having second front faces that provide second crimping surfaces and e) the guiding rod being formed by a thickening arranged in an end region of at least one first rib of the first die half unit, and the guiding recess being formed by a guiding recess section which extends from an end region of at least one second rib of the second die half unit, the guiding recess having an open edge in a cross section and comprising a guiding surface having a shape of a segment of a cylinder, f) the thickening of the guiding rod being guided by the guiding surface.

20. The crimping pliers of claim 19, wherein at least one the first and second die half units is supported by a force-displacement compensating element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In the following, the invention is further explained and described with respect to preferred exemplary embodiments illustrated in the drawings.

(2) FIG. 1 shows a crimping pliers die in a three-dimensional exploded view.

(3) FIG. 2 shows the crimping pliers die of FIG. 1 in a three-dimensional exploded view from another viewing direction.

(4) FIG. 3 shows the assembled crimping pliers die of FIGS. 1 and 2 in a three-dimensional view.

(5) FIG. 4 in a simplified representation shows a subsection through crimping pliers comprising a crimping pliers die of FIGS. 1 to 3.

(6) FIG. 5 shows a Detail V of the crimping pliers of FIG. 4 in the region of the connection of the crimping pliers die to pliers jaws of the crimping pliers.

(7) FIG. 6 shows a three-dimensional exploded view of crimping pliers comprising a crimping pliers die of FIGS. 1 to 3.

(8) FIG. 7 in a three-dimensional view shows the assembled crimping pliers of FIG. 6 without a front fixed pliers part plate in a three-dimensional view.

(9) FIG. 8 shows crimping pliers in an open position of the hand levers and of the pliers jaws.

(10) FIG. 9 shows the crimping pliers of FIG. 8 in a closed position of the hand levers and of the pliers jaws.

DETAILED DESCRIPTION

(11) In the present description of the figures partly the same reference number is used for components which are identical or similar with respect to their geometry and/or function. In this case the components are distinguished from each other by an additional letter a, b, . . . . In this case, reference is made to these components with or without the additional letter which then relates to one single component, a plurality of these components or all of these components.

(12) FIG. 1 shows in a three-dimensional exploded view a crimping pliers die 1. The crimping pliers die 1 comprises an upper die half unit 2 and a lower die half unit 3. The upper die half unit 2 and the lower die half unit 3 have identical designs so that for the following description primarily reference is made to the die half unit 2 (the corresponding then also applies for the other die half unit 3).

(13) The die half unit 2 comprises a holding body 4 and a die half 5.

(14) The holding body comprises a bearing part 6 with a bearing body 7 and with stops 8, 9. Here, the stops 8, 9 are embodied as arms 10, 11 being arranged on both sides of the bearing body 7. The bearing part 6 with the bearing body 7 and the arms 10, 11 is arranged on the side of the holding body 4 facing away from the die half 5.

(15) On the side facing towards the die half 5 the holding body 4 comprises a guiding surface 12. At least one recess 13, 14 (here embodied as blind bore 15, 16) extends from the guiding surface 12. A spring 17 and via the spring 17 a latching element 18 (here a latching sphere 19) is supported on the bottom of the recess 14. Dependent on the assembly situation the spring 17 with the latching element 18 might also be arranged in the other recess 13 or a spring with associated latching element can be arranged in both recesses 13, 14.

(16) The bearing body 7 comprises a bearing body guiding surface 20 having the shape of a segment of a cylinder and an insertion surface 21 which is in particular embodied as a flattening 22.

(17) On the side facing towards the holding body 5 the die half 5 comprises a guiding surface 23. In the assembled state the guiding surface 23 of the die half 5 contacts the guiding surface 12 of the holding body 4. Via the guiding surfaces 12, 23 the crimping force is also supported between the die half 5 and the holding body 4. On the other hand the guiding surfaces 12, 23 provide a guidance during the rotation of the die half 5 relative to the holding body 4 which will be explained in the following. The guiding surfaces 12, 23 define the desired orientation of the die half 5 relative to the holding body (preferably in the direction of the crimping axis 105) independent on this relative rotation.

(18) Latching recesses 24a, 24b . . . extend from the guiding surface 23 of the die half 5. The latching recesses 24 are embodied as blind bores or through bores of a base plate 25 of the die half 5. For latching a relative rotational angle between the holding body 4 and the die half 5 the latching element 18 is biased by the spring 17 out of the holding body 4 into the latching recess 24 and the latching element 18 (at least partially) enters into the latching recess 24. In this way the relative rotational angle between the die half 5 and the holding body 4 is secured.

(19) A bearing protrusion 27 extends from the base plate 26 of the holding body 4. The bearing protrusion 27 is here embodied as journal and comprises a annular groove 29 in the end region facing away from the base plate 26. In the assembled state the bearing protrusion 27 is accommodated in a rotational bearing bore 30 of the die half 5. In the assembled state the bearing protrusion 27 extends up to a lateral slit or slot 31 of the die half 5. Due to the slit or slot 31 the annular groove 29 of the bearing protrusion 27 is accessible from the outside. Accordingly, it is possible to connect an axial securing element 30 (here a securing ring 30) through the lateral slit or slot 31 to the bearing protrusion 27. Here, in the case that the securing element 32 is embodied as securing ring 33 the securing ring 33 snaps into the annular groove 29. In this way the bearing protrusion 27 of the holding body 4 is secured against re-exiting from the die half 5.

(20) The accommodation of the bearing protrusion 27 of the holding body 4 in the rotational bearing bore 30 provides a holding body rotational bearing 34. The holding body rotational bearing 34 allows a rotation of the die half 5 relative to the holding body 4 about an axis 35 of rotation having an orientation parallel or coaxial to the crimping axis 105. For different relative rotational angles between the holding body 4 and the die half 5 about the axis 35 of rotation a securing can be provided by the entry of the latching element 19 into one of the latching recesses 24a, 24b, . . . which establishes a latching device 36.

(21) The die half 5 comprises a plurality of plate-shaped ribs 37a, 37b, . . . which are arranged parallel to each other with the same distances from each other. The ribs 37 extend in a direction vertical to the base plate 25 of the die half 5. The ribs 37 extend parallel to the rotational axis 5 and to the crimping axis 105. The distance of the ribs 37a, 37b, . . . is slightly larger than the thickness of the ribs 37a, 37b, . . . . All of the ribs 37a, 37b, . . . have the same thicknesses. It is possible to slide the ribs 37a, 37b, . . . of the die halves 5 of the two die half units 2, 3 into each other so that the ribs 37 of one die half 5 of one die half unit 2 are arranged in the interspaces between the ribs 37 of the die half 5 of the other die half unit 3. Preferably, the ribs 37 of the die halves 5 of the die half units 2, 3 contact each other closely but with a low friction so that here a transition fit or clearance fit can be used. Accordingly, the ribs 37 can be moved relatively to each other in the direction of the crimping axis 105 and of the rotational axis 35. In a direction vertical to the extensional plane of the ribs 37 there is at the most a small play for a relative movement of the holding body 4 of the die half units 2, 3.

(22) When viewing in the direction of a die accommodation 38 formed by the die halves 5 the ribs 37 generally have the shape of a right-angled triangle. Here, the legs limiting the right angle of the triangle are alternatingly connected to the base plate 25 of the die half. Accordingly, crimping surfaces 39, 40 formed by adjacent ribs form a kind of V or a right angle. The crimping surfaces 39, 40 of the two die halves 5 of the die half units 2, 3 delimit the square, rectangular or rhombic cross-sectional contour of the die accommodation 38 (as can be seen in FIG. 2). Here, by a relative movement of the die half units 2, 3 in the direction of the crimping axis 105 the size of the die accommodation 38 varies over the crimping stroke. However, the square, rectangular or rhombic geometry will still be upheld.

(23) The dies comprise (except the side with the crimping surfaces 39, 40 for the formation of the die accommodation 38) a generally rectangular block-shaped outer geometry where the outer geometry is open in the region of the interspaces between the ribs 37.

(24) One (preferably central) rib 37 extends beyond the rectangular block-shaped outer geometry with a strip-like or plate-like extension section 41 and an end-sided thickening 42. The thickening 42 forms a guiding rod 43. The guiding rod 43 is connected to the rib 37 by the extension section 41 over the whole extension of the associated rib 37 in the direction of the crimping axis 105. The extension section 41 and the thickening 42 comprise a cross section which does not vary in the direction of the crimping axis 105 and which comprises two guiding surfaces arranged parallel to each other in the region of the extension section 41. In the region of the thickening 42 the cross section has the shape of a segment of a circle so that the guiding rod 43 forms a guiding surface 44 having the shape of a segment of a cylinder.

(25) Two ribs 37 which directly contact the rib 37 which forms the guiding rod 43 (or which are arranged adjacent to the same) on the opposite side form a connecting region or guiding recess section 45 being arranged outside from the rectangular block-shaped geometry. Here, the guiding recess section 45 comprises two plate-like or strip-like extension sections 46, 47 as well as a guiding recess portion 48. The extension sections 46, 47 form guiding surfaces being arranged parallel to each other whereas the guiding recess portion in the interior forms a guiding surface 49 having the shape of a segment of a cylinder. The guiding surface 49 forms a guiding recess 50 or guiding bore (which has an open edge). The guiding recess section 45 extends over the whole extension of the associated rib 37 along the crimping axis 105 and comprises a constant cross section over the whole extension.

(26) When the crimping pliers die 1 is assembled, for the formation of a guide 51 a guiding rod 43 of the die half 5 of one die half unit 2 is accommodated in a guiding recess 50 of a die half 5 of the other die half unit 3 (and vice versa). The guide 51 provides that the die halves 5 of the two die half units 2, 3 can be commonly rotated about the rotational axis 35, a displacement of the die halves 5 of the die half units 2, 3 transvers to the crimping axis 105 and in the main extensional plane of the ribs 37 is limited or blocked and/or a support of the die halves 5 of the die half units 2, 3 is provided in a direction vertical to the main extensional plane of the ribs 37.

(27) It is optionally possible that at least one die half 5 of the crimping pliers die 1 comprises a stop body 52 (which is here embodied as a stop disk). The stop body 52 is supported for being rotated by a stop body rotational bearing 53 on a base body or a rib 37 of the die half 5. The stop body rotational bearing 53 comprises a stop body rotational axis 54 having an orientation vertical to the main extensional plane of the ribs 37. For the shown embodiment the stop body rotational bearing 53 is formed by a stop body bearing protrusion 55 which extends from the base body or the rib 37 of the die half 5 and which comprises an end-sided stop body annular groove 56. The stop body 52 comprises a stop body rotational bearing bore 57. In the assembled state the stop body bearing protrusion 55 of the die half 5 extends through the stop body rotational bearing bore 57 of the stop body 52. By an axial stop body securing element 58 (here a stop body securing ring 59 which is accommodated in the stop body annular groove 56) the stop body 52 is secured in axial direction on the die half 5. For that purpose the stop body 52 is axially trapped between the stop body securing element 58 and the base body or the rib 37 of the die half 5.

(28) The stop body 52 comprises a plurality of insertion stops 60a, 60b which are dispersed in circumferential direction about the stop body rotational axis 54. The insertion stops 60a, 60b can be moved into an operating position in different relative rotational angles of the stop body 52 relative to the die half 5 about the stop body rotational axis 54. In each of the operation positions the insertion stops 60a, 60b define an insertion position for inserting a workpiece into the die accommodation 38. Here, it is possible that the insertion stops 60a, 60b comprise different through recesses as shown which might e. g. have a conical shape on the side facing away from the die half 5 or which might also comprise an elongate cross section differing from a circular cross section with slanted guiding surfaces. It is also possible that the single insertion stops 60 comprise different stop positions with respect to the stop body rotational axis 54 where the different stop positions have the result that for different insertion stops 60 in their operating positions the wire end sleeve can be inserted with different depths into the die accommodation 38. By the different insertion positions it can then e. g. be provided that an inner end region of a wire end sleeve is arranged at a predefined position of the die accommodation 38, in particular in a predefined position relative to the ribs 37.

(29) Optionally, for the shown embodiment the crimping pliers die 1 comprises a stop body latching device 61. The die half 5 comprises a recess 62. A spring 63 (and via the spring 63 a stop body latching element 64, here embodied as latching sphere 65) is supported on the bottom of the recess 62. On the side facing towards the die half 5 the stop body 52 comprises a plurality of stop body latching recesses 66 that are arranged remote from each other along the circumference. The stop body latching element 64 can be latched with the stop body latching recesses 66 in the different operating positions of the insertion stops 60.

(30) FIGS. 4 and 5 show crimping pliers 67 (without a front fixed pliers part plate) wherein the die half units 2, 3 of the crimping pliers die 1 are assembled to the pliers jaws 68, 69. Here, FIG. 5 shows a Detail V of the connection region of the crimping pliers die 1 to the pliers jaws 68, 69. The pliers jaws 68, 69 form a bearing eye 70. Together with the bearing body 7 of the die half units 2, 3 the bearing eye 70 provides a rotational bearing 70 with a rotational axis 72 having an orientation vertical to the drawing plane of FIGS. 4 and 5 and vertical to the pivoting plane of the pliers jaws 68, 69. The bearing eye 70 comprises a bearing bore 70 having an edge opening 74. Due to the edge opening 74 the bearing bore 73 has the shape of a segment of a cylinder, the segment angle being larger than 180° (e. g. in the region of 190° to 240°). Accordingly, the lateral limitations 75, 76 of the edge opening 74 have a distance which is smaller than a guiding diameter of the bearing bore 73. For inserting the bearing body 7 of the bearing part 6 into the bearing eye 70 the bearing body 7 of the die half unit 2 (when the other die half unit 3 is not held thereon) is rotated relatively to the position in FIG. 5 vertical to the pivot plane of the pliers jaws 68, 69 in a way such that the bearing body 7 is able to pass the edge opening 74 with the insertion surface 21 (here the flattening 22). When then the bearing body 7 is arranged in the bearing eye 70, it is possible to pivot the bearing body 7 vertically to the pivoting plane of the pliers jaws 68, 69 in a way such that the insertion surface 21 is arranged within the bearing eye 70. The larger guiding diameter of the bearing body guiding surface 20 of the bearing body 7 having the shape of a segment of a cylinder avoids any re-exiting of the bearing body 7 from the bearing eye for this rotational angle and adjacent rotational angles passed during the crimping stroke. Preferably, a rotational angle of the bearing body 7 for which it is possible to insert the bearing body 7 into the bearing eye 70 and for which the bearing body 7 is able to exit from the bearing eye 70 is chosen in a way such that this rotational angle is never approached when the crimping pliers 67 has been assembled with the crimping pliers die 1 held thereon so that this rotational angle is only possible for the at least partially disassembled crimping pliers 67.

(31) In an exploded view FIG. 6 shows a possible embodiment of a crimping pliers 67 wherein a crimping pliers die 1 is used. The crimping pliers comprise a fixed pliers part 67. The fixed pliers part 67 comprises a fixed hand lever 68. The fixed pliers part 67 comprises a front and a rear fixed pliers part plate 79. By a swivel pin 80 an elastic pliers jaw 81 is supported for being pivoted on the fixed pliers part 77 (preferably in the region of the hand lever 78). Additionally, the elastic pliers jaw 81 is supported for being pivoted by another swivel pin 82 on the fixed pliers part 77. Here, the swivel pin 82 can for a first alternative be arranged in the region of a first longitudinal extension 83 or for another alternative in a second longitudinal extension 84 of the elastic pliers jaw 81. The first longitudinal extension might e. g. correspond approximately to the half of the longitudinal extension of the elastic pliers jaw 81 whereas the second longitudinal extension 84 might e. g. be arranged with a distance of ⅓ to ¼ of the elastic pliers jaw 81 from the swivel pin 80. Accordingly, the elastic pliers jaw 81 comprises a freely protruding pliers jaw section 85. In the free end region of the pliers jaw section 85 the bearing eye 70 is arranged. The elasticity (in particular the stiffness of the material and/or the cross section and the second moment of area) of the elastic pliers jaw 81 is chosen such that for sufficiently high crimping forces an elastic bending or compensating movement of the elastic pliers jaw 81 and together therewith of the bearing eye 70 is possible. In this way a force-displacement compensating element 86 is provided.

(32) In one end region a moveable hand lever 37 is linked by a pivot bearing 88 with a swivel pin 89 to a movable pliers jaw 90. The moveable pliers jaw 90 is further supported for being pivoted by a pivot bearing 91 with a swivel pin 92 to the fixed pliers part 77. Furthermore, the moveable hand lever 87 is also connected by a pivot bearing 93 with a swivel pin 94 to a pressure lever 95. In one end region the pressure lever 95 is linked by a pivot bearing 96 with a swivel pin 97 to the fixed pliers part 77. An opening spring 104 is effective between the moveable pliers jaw 90 and the elastic pliers jaw 81. The moveable hand lever 87, the pressure lever 95 and the linkage of the moveable hand lever 87 to the moveable plies jaw 90 forms a toggle lever drive 98. A toggle joint 99 of the toggle lever drive 98 is formed by a pivot bearing 93. A first toggle lever is formed by the pressure lever 95 in the section between the pivot bearings 93, 96. A second toggle lever is formed by the movable hand lever 87 in the section between the pivot bearings 88, 93. In the end regions arranged at the bit of tongs the moveable pliers jaw 90 and the elastic pliers jaw 81 each form a bearing eye 70. The bearing bodies 7 of the die half units 2, 3 of the crimping pliers die 1 are assembled in the bearing eyes 70.

(33) In FIGS. 6 and 7 it can be seen that the crimping pliers 87 have a plate construction where single plates might consist of a plurality of sub-plates.

(34) For the shown embodiments the crimping pliers 67 also comprise a forced locking unit 100. The forced locking unit 100 provides that the crimping stroke can be run through also in a number of crimping substeps where after the respective crimping substeps an opening of the crimping pliers 67 is avoided by the forced locking unit 100. Instead, an opening of the crimping pliers 67 is only allowed by the forced locking unit 100 when the crimping stroke and so all of the crimping substeps have completely been run through. For the shown embodiment the forced locking unit 100 comprises an outer toothing 101 of the pressure lever 95, a locking pawl 102 and a locking pawl spring 103.

(35) FIG. 8 shows crimping pliers 67 with the crimping pliers die 1 held thereon in an open position whereas FIG. 9 shows the crimping pliers 67 in a closed position. It can be seen that in the open position the guiding rods 43 of the die half units 2, 3 are partially arranged outside from the guiding recesses 50 of the die half units 2, 3. The die accommodation 38A has a large cross section. Instead, in FIG. 9 the guiding rods 43 have further entered or completely entered into the guiding recesses 50 so that the die accommodation 38 has a smaller cross section. A connecting axis of the rotational axis of the rotational axes 72 of the two die half units 2, 3 forms a crimping axis 105. A crimping force is generated that acts in the direction of the crimping axis 105. The crimping force is applied via the crimping surfaces 39, 40 onto the outer surface of the workpiece which is arranged in the die accommodation 38.

(36) The design of the guide 51 can be used for any design of the die halves 5, in particular also for die halves 5 that are not embodied as rib dies comprising ribs 37.

(37) For the embodiments shown in the Figures the thickening 42 which forms the guiding rods 43 is formed by a lateral end region of one single rib 37. Within the frame of the invention it is also possible that the thickening 42 is formed by the lateral end regions of two ribs 37 being arranged directly adjacent to each other or also remote from each other or the thickening might be formed by a plurality of ribs 37.

(38) For the embodiments shown in the Figures the guiding recess 50 is formed by the lateral end region of two adjacent ribs 37. Within the frame of the invention it is also possible that the guiding recess 50 is only formed by one single rib 37, a lateral end region of this single rib 37 then extending around the guiding rod 43 from one side or the guiding recess 50 is formed by the end regions of two ribs 37 not being arranged directly adjacent to each other (or even by more than two ribs 37).

(39) For the embodiment shown in the Figures the holding body rotational bearing 34 which allows the common rotation of the die halves 5 about the pivot axis 35 is an integral component of the inventive crimping pliers die 1. The crimping pliers die 1 formed in this way might then be linked by the holding body 4 to a pliers jaw of the crimping pliers which for the shown embodiment is the case with an additional pivoting degree of freedom. However, the invention also covers an embodiment of a crimping pliers die comprising two die half units 5 where the crimping pliers die 1 does not form the complete holding body rotational bearing 34. Instead, the crimping pliers die 1 only forms the rotational bearing element 106 of the holding body rotational bearing 34. For the shown embodiment the rotational bearing element 106 might e. g. be a bearing eye with a rotational bearing bore 30 (or a bearing journal).

(40) In the drawings, any component denoted with a reference numeral related with a latching effect might for another embodiment also be related with a locking effect (where in some cases the provision of different contact surfaces might be required for providing the latching or locking effect).

(41) Many variations and modifications may be made to the preferred embodiments of the invention without departing substantially from the spirit and principles of the invention. All such modifications and variations are intended to be included herein within the scope of the present invention, as defined by the following claims.