Crimping tool locator and crimping tool
11381048 · 2022-07-05
Assignee
Inventors
Cpc classification
International classification
B25B27/14
PERFORMING OPERATIONS; TRANSPORTING
Abstract
The invention relates to a crimping tool locator (12) for a crimping tool (1), especially crimping plier (2). The crimping tool locator (12) comprises an accommodating body (14) with at least one accommodation (21) for a workpiece (10), especially a plug (11). The accommodating body (14) comprises a securing device (24), by which the workpiece (10) is securable in the interior of the accommodation (21). The securing device (24) can be realized as a latching device, locking device or friction device.
Claims
1. A crimping tool locator for defining a position and/or orientation of a workpiece relative to a crimping tool having a crimping stroke, the crimping tool locator comprising: an accommodating body with at least one accommodation for the workpiece formed in said accommodating body, said accommodation being adapted to receive the workpiece in a direction of insertion of the workpiece, the direction of insertion being parallel to a longitudinal axis of the accommodation, the longitudinal axis of the accommodation being parallel to a longitudinal axis of the workpiece when the workpiece is arranged in the accommodation; and said accommodating body comprising a securing device for securing the workpiece in the interior of the accommodation, said securing device comprising a spring arm and at least one of a latching element and a locking element, the spring arm and said at least one of the latching element and the locking element being designed and configured to interact with the workpiece within the accommodation when the workpiece is arranged in the accommodation for providing the securing effect at a location within the accommodation, wherein the at least one of the latching element and the locking element are not moved during the crimping stroke, and wherein the accommodating body is a single-piece part and the securing device is integrally formed with the accommodating body.
2. The crimping tool locator according to claim 1, wherein the crimping tool locator is designed and configured such that the securing device element can be transferred into a) a secured position in which the workpiece arranged in the accommodation is secured with the securing effect and b) an unsecured position in which a workpiece arranged in the accommodation is not secured with the securing effect.
3. The crimping tool locator according to claim 2, wherein the securing device comprises the spring arm and the latching element, but not the locking element.
4. The crimping tool locator according to claim 2, wherein the securing device comprises the spring arm and the locking element, but not the latching element.
5. A crimping tool locator for defining a position and/or orientation of a workpiece relative to a crimping tool having a crimping stroke, the crimping tool locator comprising: an accommodating body with at least one accommodation for the workpiece formed in said accommodating body, said accommodation being adapted to receive the workpiece in a direction of insertion of the workpiece, the direction of insertion being parallel to a longitudinal axis of the accommodation, the longitudinal axis of the accommodation being parallel to a longitudinal axis of the workpiece when the workpiece is arranged in the accommodation; and said accommodating body comprising a securing device for securing the workpiece in the interior of the accommodation, said securing device comprising a spring arm and at least one of a latching element and a locking element, the spring arm and said at least one of the latching element and the locking element being designed and configured to interact with the workpiece within the accommodation when the workpiece is arranged in the accommodation for providing the securing effect at a location within the accommodation, wherein the at least one of the latching element and the locking element are not moved during the crimping stroke, wherein the securing device further comprises a manual actuation organ, said manual actuation organ being designed and configured to interact with at least one of the spring arm and said at least one of the latching element and the locking element to perform at least one of supporting the securing device with regard to the securing effect, holding the securing device in the secured position and actuating the securing device, wherein the crimping tool locator is designed and configured such that the securing device can be transferred into: a) a secured position in which the workpiece arranged in the accommodation is secured with the securing effect; and b) an unsecured position in which a workpiece arranged in the accommodation is not secured with the securing effect.
6. The crimping tool locator according to claim 2, wherein the securing device is designed and configured for being actuated and/or released in a motion-controlled way.
7. A crimping tool locator for defining a position and/or orientation of a workpiece relative to a crimping tool having a crimping stroke, the crimping tool locator comprising: an accommodating body with at least one accommodation for the workpiece formed in said accommodating body, said accommodation being adapted to receive the workpiece in a direction of insertion of the workpiece, the direction of insertion being parallel to a longitudinal axis of the accommodation, the longitudinal axis of the accommodation being parallel to a longitudinal axis of the workpiece when the workpiece is arranged in the accommodation; and said accommodating body comprising a securing device for securing the workpiece in the interior of the accommodation, said securing device comprising a spring arm and at least one of a latching element and a locking element, the spring arm and said at least one of the latching element and the locking element being designed and configured to interact with the workpiece within the accommodation when the workpiece is arranged in the accommodation for providing the securing effect at a location within the accommodation, wherein the at least one of the latching element and the locking element are not moved during the crimping stroke, and wherein the securing device is designed and configured for being actuated and released in a motion-controlled way by a movement of the accommodating body relative to a pliers head by which the crimping tool locator is held, wherein the crimping tool locator is designed and configured such that the securing device can be transferred into: a) a secured position in which the workpiece arranged in the accommodation is secured with the securing effect; and b) an unsecured position in which a workpiece arranged in the accommodation is not secured with the securing effect.
8. A crimping tool locator for defining a position and/or orientation of a workpiece relative to a crimping tool having a crimping stroke, the crimping tool locator comprising: an accommodating body with at least one accommodation for the workpiece formed in said accommodating body, said accommodation being adapted to receive the workpiece in a direction of insertion of the workpiece, the direction of insertion being parallel to a longitudinal axis of the accommodation, the longitudinal axis of the accommodation being parallel to a longitudinal axis of the workpiece when the workpiece is arranged in the accommodation; and said accommodating body comprising a securing device for securing the workpiece in the interior of the accommodation, said securing device comprising a spring arm and at least one of a latching element and a locking element, the spring arm and said at least one of the latching element and the locking element being designed and configured to interact with the workpiece within the accommodation when the workpiece is arranged in the accommodation for providing the securing effect at a location within the accommodation, wherein the at least one of the latching element and the locking element are not moved during the crimping stroke, and wherein the securing device is designed and configured for being actuated and released in a motion-controlled way by a movement of driving elements or tool halves of the crimping tool, wherein the crimping tool locator is designed and configured such that the securing device can be transferred into: a) a secured position in which the workpiece arranged in the accommodation is secured with the securing effect; and b) an unsecured position in which a workpiece arranged in the accommodation is not secured with the securing effect.
9. A Crimping tool with the crimping tool locator according to one of the preceding claims.
10. The crimping tool locator according to claim 1, wherein the crimping tool comprises a pair of die halves that are movable about an open position, in which the die halves are spaced from each other, and a closed position, in which the die halves form a closed die.
11. The crimping tool locator according to claim 10, wherein in the open position, the die halves are spaced from the workpiece, and in the closed position, the die halves engage the workpiece.
12. The crimping tool locator according to claim 11, wherein the at least one of the latching element and the locking element is interactable with the workpiece within the accommodation when the die halves are in the open position and in the closed position.
13. The crimping tool locator according to claim 10, wherein the pair of die halves are spaced from the at least one of the latching element and the locking element a predetermined distance.
14. The crimping tool locator according to claim 10, wherein the at least one of the latching element and the locking element is not linkably coupled to the movable pair of die halves.
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.
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DETAILED DESCRIPTION
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(16) End regions of hand levers of the crimping pliers 2 are pivotably connected with each other via a hinge bolt. To each of the hand levers, an end region of a draw bar is linked. The other end region of each of the draw bars is linked to a supporting bolt 4, 5 of the pliers head 3. The supporting bolts 4, 5 are (possibly releasably) held on frame parts 6a, 6b of the pliers head 3 which in a first approximation are O-shaped. The hinge bolt pivotably connecting the hand levers of the crimping pliers 2 is supported in an accommodation 7 of a tool half 8. The tool half 8 is slidably guided along a longitudinal axis or crimping axis with respect to the frame parts 6a, 6b. Due to the mentioned draw bar connections a pivoting of the hand levers of the crimping pliers 2 towards each other leads to a motion of the tool half 8 along the longitudinal axis in a closing direction, in which way a working stroke of the crimping pliers 2 can be run through. A second tool half 9 is fixed to the frame parts 6a, 6b. On the tool halves 8, 9, at least one die half is formed each or at least one die body forming at least one die half is held. When running through the working stroke of the crimping pliers 2, the tool halves 8, 9 move towards each other until the die halves of the two tool halves 8, 9 corresponding to each other form a closed die. When running through the working stroke, the workpiece 10 (which is a plug 11 here) arranged between the tool halves 8, 9 and the corresponding die halves is crimped.
(17) On the pliers head 3, a crimping tool locator 12 is held. The crimping tool locator 12 comprises a holding and/or guiding body 13, which on the one hand serves for holding or fixing on the pliers head 3 and on the other hand serves for the guiding of a motion of an accommodating body 14 relative to the pliers head 3 between an insertion position and a working position of the accommodating body 14 (and the other way around).
(18) For the embodiment shown here, the relative motion of the accommodating body 14 with respect to the holding and/or guiding body 13 and therefore the pliers head 3 is a pivoting motion around a pivoting axis 15, which is oriented parallel to a pliers head plane defined by the frame parts 6 and vertically to the longitudinal and crimping axis. In order to achieve this, the holding and/or guiding body 13 comprises a pivoting bolt 20 which is fixedly or releasably held by the crimping tool half 8. The accommodating body 14 comprises arms 16, 17 which form bearing lugs 18, 19 oriented coaxially to the pivoting axis 15 for the pivoting bolt 20. For the embodiment shown, the bearing lugs 18, 19 are realized with open boundaries so that they can be “clicked” onto the pivoting bolt 20 under use of the elasticity of the arms 16, 17.
(19) The accommodating body 14 can be realized as one-parted or multi-parted. As can be seen in
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(21) in the insertion and removal position of the accommodating body 14 a plug is inserted from the side turned towards the pliers head 3 into one of the accommodations 21 (which in
(22) In
(23) In the beginning of the insertion of a plug 11 into an accommodation 21, a front face and/or lower side of the plug 11 contacts an insertion inclination 31 formed by the latching contour 29 of the latching lug 28. An insertion force applied onto the plug 11 is transformed into a transverse force by the insertion inclination 31 which exerts a bending force onto the spring arm 26. When elastically biasing the spring arm 26 the latching lug 28 recedes downwards in
(24) If after the execution of the crimping process and after an opening of the crimping tool locator 12 the plug 11 with the cable crimped with it is to be removed from the accommodation 21, this can be achieved by sufficient removal forces which are applied onto the cable and the plug 11 and which by a corresponding insertion inclination of the latching contour 29 arranged on the other side are transformed into a transverse force. This transverse force elastically biases the spring arm 26 and leads to result that the latching lug 28 leaves the latching recess 30. In
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(27) For the embodiment shown in
(28) In deviation to the embodiment shown, it is also possible that the tensioning or blocking rod 40 is mounted to the pliers head 3 and enters into interaction with the securing device 24 in the interior of the accommodating body 14. It is possible that between the pliers head 3, the tensioning or blocking elements 37a, 37b, 37c, 37d or the tensioning or blocking rod 40 and the securing device 24 an elasticity is interposed.
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(30) In the detail according to
(31) On the contrary, towards the end of the working stroke the accommodating body 14 contacts the tool half 9 or a frame part 6. As the working stroke is further gone through and the tool half 8 and the accommodating body 14 are biased in the crimping direction, the contact between the tool half 9 and the frame part 6 leads to a relative motion between the accommodating body 14 and the tool half 8. In order to achieve this, the accommodating body 14 is connected via elongated holes extending along the longitudinal axis to the tool half 8 or is to a certain extend held elastically by the tool half 8. The mentioned relative motion has the result that there is also a relative motion between the front face 43 of the actuation tappet 41 and the accommodation 21 with the plug 11 arranged in it. This relative motion in turn results in the front face 43 of the actuation tappet 41 pressing the plug 11 against an opposite limiting surface of the accommodation 21. In this way the plug 11 is secured by friction in the accommodation 21. This securing effect then only occurs at the end of the working stroke and can be used to additionally fix the plug 11 and to keep the plug 11 in the correct orientation at the end of the plastic deformation of the plug 11 with high crimping forces being effective on the plug 11 then. Preferably, the front face 43 biases the plug 11 via a friction and/or spring element 44.
(32) For a different embodiment, an actuation organ 41 such as an actuation tappet 42 can also be mounted to the frame part 6 or the tool half 9 and extend from above through the accommodating body 14 into the accommodation 21. Then, in this way a relative motion between the accommodation 21 and the actuation organ 41 can occur over the entire working stroke.
(33) For the embodiments shown, the latching element 27, the latching lug 28, the friction element 32, a cam 35, the actuation organ 41 or the actuation tappet 42 forms a securing element 45 of the securing device 24. This securing element 45 can be brought manually by the securing device 24, in a motion-controlled way by the closing of the crimping tool locator 12 or by the relative motion of the tool halves 8, 9 during the working stroke into a secured position in which the plug 11 (possibly in addition to another way of securing) is secured in the accommodation 21 and/or into an unsecured position in which the plug 11 is not additionally secured in the accommodation 21. The securing element 45 is moveable relative to the cross section of the accommodating body 14 limiting the accommodation 21 for the plug 11. This relative motion can for example be larger than 0.01 mm, larger than 0.02 mm, larger 0.05 mm, larger than 0.1 mm or even larger than 0.2 mm and can be induced by the forces effective for the induction of the motion of the securing element 45 (that is, especially the insertion forces and/or the removal forces for the plug according to
(34) If the contact contours between the latching element 27 and the latching recess 30 comprise inclined surfaces, the securing device 24 realized with the spring element 25, the latching element 27 and the latching recess 30 is a latching device 46 which can be latched or unlatched for the application of sufficient insertion forces or removal forces onto the workpiece 10.
(35) If, on the contrary, the contact contours between the latching element 27 and the latching recess 30 comprise transverse surfaces having an orientation transverse to the longitudinal axis of the accommodation 21, the securing device 24 is a locking device 47, which cannot be unlocked by pure application of removal forces. Also in the case that the securing device 24 comprises the actuation organ 33, the actuation shaft 34 and at least one cam 35, the securing device 24 forms a locking device 47 which secures the plug 11 by friction. For the removal of the plug 11 for the reduction of the friction force at first the crimping force has to be reduced by a rotating the actuation shaft 34.
(36) The accommodating body may only comprise one accommodation 21 and one corresponding securing device 24. It is also possible that the accommodating body 14 comprises several accommodations 21a, 21b, . . . , where only single accommodations 21 or all accommodations 21 may each be equipped with a securing device 24a, 24b, . . . .
(37) In the present description the same construction elements such as the accommodations 21a, 21b, . . . and the securing devices 24a, 24b, . . . are marked with the same reference signs. A differentiation is achieved by the additional letter a, b, . . . . If then such a reference sign is used without additional letter a, b, . . . , this can mean that in this place only one such construction element or several such construction elements is/are referred to.
(38) The invention has been described on the basis of a special type of crimping pliers 2 with an O-shaped frame and tool halves driven via lugs or rods. The use of the invention, however, is not limited to this type of crimping pliers. Rather than that, the invention can be used in connection with any other type of crimping pliers, cp. the prior art mentioned in the beginning, or in any other crimping tool.
(39) Furthermore, the invention has been described on the basis of a special type of a crimping tool locator 12, that is, a crimping tool locator in which the accommodating body 14 is pivoted about a transverse axis. The use of the invention, however, is not limited to this type of crimping tool locator 12. Rather than that, the invention can generally be used in connection with any other type of a crimping tool locator 12, especially a crimping tool locator according to the prior art mentioned in the beginning and/or a crimping tool locator with a pivoting of the accommodating body 14 around a longitudinal axis or with a translatory degree of freedom of the accommodating body 14 or an accommodating body 14 rotated in revolver-like way.
(40) A crimping tool locator 12 can be an integral part of crimping pliers 2 or be mounted fixedly to a pliers head 3. It is also possible that a crimping tool locator 12 is an optional additional component which can be mounted with the crimping pliers 2 according to the variant of configuration or mode of use. 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.