Fakra-connector-cable core stripping device and fakra-connector-cable processing apparatus

Abstract

The present invention relates to the technical field of cable processing, and in particular to a Fakra-connector-cable core stripping device and a Fakra-connector-cable processing apparatus. The core stripping device comprises: a first cutter holder and a second cutter holder, which are parallel and can be arranged close to or away from each other; a blunt cutter, which is arranged at an end of the first cutter holder; and a splitting cutter, which is arranged on the second cutter holder. The core stripping device further comprises: a first toothed jaw, which is arranged on the first cutter holder in a relatively slidable manner, and a second toothed jaw, which is arranged on the second cutter holder in a relatively slidable manner, wherein the first toothed jaw is arranged on the front face of the first cutter holder, the second toothed jaw is arranged on the back face of the second cutter holder, and the first toothed jaw and the second toothed jaw are configured to clamp two sides of an insulating sheath of a wire harness and generate torsion when approaching each other. The core stripping device further comprises a clamping jaw, which is configured to clamp a wire harness in an orientation away from the first toothed jaw and the second toothed jaw. The present invention splits the insulating sheath by means of the cooperation between the blunt cutter and the splitting cutter, and then causes the insulating sheath to fracture at the site of a cut by means of the first toothed jaw and the second toothed jaw applying torsion to the split insulating sheath.

Description

A Fakra connector cable stripping device and processing equipment Technical Field

[0001] The present invention relates to the technical field of cable processing, and in particular to a Fakra connector cable core stripping device and processing equipment. Background Art

[0002] Fakra connectors are mainly used in the field of automotive communications. The cables of Fakra connectors are coaxial cables, which include copper core, PE insulation, shielding mesh and insulation skin from the center to the outer layer of the cable. Therefore, the cable end processing of Fakra connectors is also relatively cumbersome. With the gradual popularization of new energy vehicles, how to improve the processing efficiency of Fakra wiring harnesses has become an urgent problem to be solved.

[0003] In the prior art, for example, the Chinese invention patent application with publication number CN112038983A disclosed on December 4, 2020, a Fakra connector cable core stripping device, end processing equipment, and method. In order to solve the problem of easily damaging the inner core when the rotary knife cuts the insulation, it uses two oppositely arranged and V-shaped stripping knives to cut the insulation, and then uses an incomplete cutting method to pull off the cut portion of the insulation with the help of tension to achieve the stripping of the insulation;

[0004] However, the inventors found that when the above solution is implemented, since the blade blocks the pulling of the insulation, when the diameter of the wire harness is slightly larger, the pulling force may cause the blade to deform, thereby affecting subsequent production operations. Summary of the Invention

[0005] In view of at least one of the above technical problems, the present invention provides a Fakra connector cable core stripping device and processing equipment, which adopts structural improvements to reduce damage to the blade during stripping.

[0006] According to a first aspect of the present invention, a Fakra connector cable core stripping device is provided, comprising: a first knife seat and a second knife seat arranged in parallel and relatively close to or far from each other, a blunt knife arranged at an end of the first knife seat, and a cutting knife arranged on the second knife seat; the blunt knife and the cutting knife are arranged in a shearing orientation;

[0007] The utility model further comprises a first tooth claw which is relatively slidably provided on the first blade seat, and a second tooth claw which is relatively slidably provided on the second blade seat, wherein the first tooth claw is provided on the front surface of the first blade seat, and the second tooth claw is provided on the back surface of the second blade seat, and the first tooth claw and the second tooth claw are configured to clamp the two sides of the wire harness insulation skin and generate a torsional force when the first tooth claw and the second tooth claw are close to each other;

[0008] Also included is a clamping claw for clamping the wiring harness at a position away from the first and second tool seats;

[0009] The cutting knife clamps the wire harness and cuts the insulation on the cutting knife side as it approaches the blunt knife, and the first tooth claw and the second tooth claw twist the cut outer end of the insulation as they approach each other, and the first knife holder and the second knife holder move away from the clamping claw under the action of external force to achieve the stripping of the insulation.

[0010] In some embodiments of the present invention, the blunt knife has a V-shaped opening groove on one end facing the cutting knife, and the bottom of the V-shaped opening groove is a semicircle that matches the outer diameter of the wire harness.

[0011] In some embodiments of the present invention, the first tool holder reaches a set position earlier than the second tool holder.

[0012] In some embodiments of the present invention, the cutting knife has a flared groove on one end facing the blunt knife, the bottom of the flared groove is a semi-oblong structure, and a blade for cutting the wire harness is provided in the flared groove.

[0013] In some embodiments of the present invention, the first tooth claw and the second tooth claw are both in a strip-shaped structure, and both have friction tooth rows for contacting the wiring harness on opposite surfaces, and the friction tooth rows are arranged obliquely.

[0014] In some embodiments of the present invention, the first tooth claw and the second tooth claw begin to approach each other after the cutting knife is in place.

[0015] In some embodiments of the present invention, a first driving mechanism is further included, which includes a first linear driving member and a driving plate connected to the first linear driving member. The moving direction of the driving plate is perpendicular to the lateral movement direction of the first tool holder and the second tool holder. A first guide wheel is fixed on both the first tool holder and the second tool holder. The driving plate has a first guide groove corresponding to the first guide wheel on the first tool holder and a second guide groove corresponding to the first guide wheel on the second tool holder. The first guide groove and the second guide groove both include a vertical section and an inclined section connected to the vertical section. When the driving plate is driven, the first guide wheel in the first guide groove first moves from the inclined section to the vertical section.

[0016] In some embodiments of the present invention, the drive plate further has a U-shaped opening on one end facing the first claw and the second claw, and the U-shaped opening has a symmetrically arranged inclined surface near the opening end, and the first claw and the second claw both have a second guide wheel, and when the first guide wheel is in the vertical section, the second guide wheel contacts the inclined surface.

[0017] It also includes a second driving mechanism, which includes a first substrate, a second substrate that can be slidably connected to the first substrate, and a second driving member fixed on the second substrate and connected to the first substrate at the driving end. The first driving member and the first and second tool holders are all arranged on the first substrate.

[0018] According to a second aspect of the present invention, there is further provided a Fakra connector cable processing device, comprising the Fakra connector cable core stripping device as described in any one of the first aspects.

[0019] The beneficial effects of the present invention are as follows: the present invention uses the cooperation of a blunt knife and a cutting knife to cut the insulation skin, and then applies a torque to the cut insulation skin through the first tooth claw and the second tooth claw, so that the insulation skin breaks from the cut opening, and then utilizes the clamping force between the first tooth claw and the second tooth claw to cooperate with the clamping claw to realize the separation of the insulation skin. Through the above arrangement, there is no need for the blade to apply force during the stripping process of the insulation skin, and compared with the prior art, the reliability and life of the blade are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] FIG1 is a schematic structural diagram of a Fakra connector cable stripping device according to an embodiment of the present invention;

[0022] FIG2 is a schematic structural diagram of a Fakra connector cable stripping device according to an embodiment of the present invention;

[0023] FIG3 is a schematic structural diagram of a first tooth claw and a second tooth claw according to an embodiment of the present invention;

[0024] FIG4 is a schematic structural diagram of a first driving mechanism according to an embodiment of the present invention;

[0025] FIG5 is a top view of FIG4 in an embodiment of the present invention;

[0026] FIG6 is a schematic structural diagram of a driving plate according to an embodiment of the present invention;

[0027] 7 is a schematic diagram of the connection structure of the first driving mechanism and the second driving mechanism in an embodiment of the present invention;

[0028] FIG8 is a schematic structural diagram of a Fakra connector cable processing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The Fakra connector cable stripping device shown in Figures 1 to 7 includes a first knife seat 1 and a second knife seat 2 that are arranged in parallel and relatively close to or far apart, a blunt knife 11 arranged at the end of the first knife seat 1, and a cutting knife 21 arranged on the second knife seat 2; the blunt knife 11 and the cutting knife 21 are arranged in parallel and in a shearing orientation; the parallelism here means that the length directions of the first knife seat 1 and the second knife seat 2 are arranged in parallel as shown in Figure 1, and the shearing orientation arrangement of the blunt knife 11 and the cutting knife 21 here means that the inner surface of the cutting knife 21 is in contact with the outer surface of the blunt knife 11, so that when the cutting knife 21 contacts the blunt knife 11, the insulation of the wire harness between the two can be cut; it should be pointed out here that the insulation in the embodiment of the present invention can refer to the outer insulation or the inner insulation.

[0033] Continuing with reference to Figures 1 and 3, in an embodiment of the present invention, the present invention further includes a first toothed claw 12 slidably disposed on the first blade holder 1 and a second toothed claw 22 slidably disposed on the second blade holder 2. The first toothed claw 12 is disposed on the front surface of the first blade holder 1, and the second toothed claw 22 is disposed on the back surface of the second blade holder 2. The first toothed claw 12 and the second toothed claw 22 are configured to clamp onto both sides of the wire harness insulation and generate a torsional force when the first toothed claw 12 and the second toothed claw 22 approach each other. As shown in Figure 1, when the first toothed claw 12 and the second toothed claw 22 come into contact with the wire harness, the line connecting the contact points with the wire harness is the diameter direction of the wire harness. Since the first toothed claw 12 and the second toothed claw 22 are located on both sides of the wire harness, when the first toothed claw 12 and the second toothed claw 22 approach each other, they come into contact with the insulation and generate a torsional force, thereby further widening the incision made by the cutting knife 21.

[0034] As shown in FIG1 , the embodiment of the present invention further includes a clamping claw 3 for clamping the wire harness at a position away from the first tool holder 1 and the second tool holder 2. In the embodiment of the present invention, the function of the clamping claw 3 is to clamp the wire harness and fix the wire harness.

[0035] Among them, the cutting knife 21 clamps the wire harness and cuts the insulation on the side of the cutting knife 21 when approaching the blunt knife 11, and the first tooth claw 12 and the second tooth claw 22 twist the cut outer end part of the insulation when approaching each other, and the first knife seat 1 and the second knife seat 2 move away from the clamping claw 3 under the action of external force to realize the stripping of the insulation.

[0036] During the specific operation, the end of the cable is first inserted into the position between the blunt knife 11 and the cutting knife 21, and then the wire harness is fixed. Then, the blunt knife 11 and the cutting knife 21 are brought close to each other so that the blade 21a1 on the cutting knife 21 cuts the insulation. After that, the relative position of the blunt knife 11 and the cutting knife 21 remains unchanged, and the first tooth claw 12 and the second tooth claw 22 approach the wire harness on both sides of the wire harness, and continue to move after contacting the cut insulation of the wire harness, so as to generate torque on the insulation of the wire harness to increase the crack to complete or incomplete breakage; then the first tooth claw 12 and the second tooth claw 22 continue to clamp the cut insulation of the wire harness without loosening, and the first knife seat 1 and the second knife seat 2 synchronously move away from the clamping jaw 3, so that the insulation is detached or completely broken and then detached from the wire harness body.

[0037] In the above embodiment, the insulation skin is cut by using the cooperation of the blunt knife 11 and the cutting knife 21, and then the first tooth claw 12 and the second tooth claw 22 apply a torque to the cut insulation skin, so that the insulation skin breaks from the cut opening. Then, the clamping force between the first tooth claw 12 and the second tooth claw 22 cooperates with the clamping jaw 3 to realize the separation of the insulation skin. Through the above arrangement, there is no need for the blade 21a1 to apply force during the insulation skin stripping process, which improves the reliability and life of the blade 21a1 compared with the prior art.

[0038] On the basis of the above embodiment, as shown in FIG2 , the blunt knife 11 has a V-shaped opening groove 11a on one end facing the cutting knife 21, and the bottom of the V-shaped opening groove 11a is a semicircular shape that matches the outer diameter of the wire harness. The provision of the V-shaped opening groove 11a facilitates the capture of the wire harness during movement, and by providing the bottom of the groove as a semicircular shape that matches the wire harness, the stability of the wire harness when being cut is improved. In the embodiment of the present invention, the first knife seat 1 reaches the set position first relative to the second knife seat 2. With such a provision, the blunt knife 11 plays a positioning role. After it arrives first, it positions the wire harness before cutting, which is beneficial to the cutting accuracy and prevents damage to the wire harness structure inside the insulation.

[0039] Continuing with Figure 2, in some embodiments of the present invention, the end of the cutting blade 21 facing the blunt blade 11 has a flared groove 21a. The bottom of the flared groove 21a is a semi-oblong structure, and a blade 21a1 for cutting the wire harness is located within the flared groove 21a. This arrangement, where the semi-oblong structure refers to half of a slotted hole, allows the cutting blade 21 to cover a larger area during cutting. In addition to cutting the semi-circular portion, the oblong blade 21a1 also simultaneously cuts both sides of the wire harness as it moves toward the blunt blade 11. This cut aligns with the direction of force applied by the first and second teeth pawls 12 and 22 during twisting, thereby improving the reliability of breaking the insulation.

[0040] As shown in Figure 3, in this embodiment of the present invention, both the first and second teeth claws 12, 22 are strip-shaped, and both have friction teeth rows 22a on opposing surfaces for contacting the wiring harness. The friction teeth rows 22a are arranged at an angle. This arrangement of the teeth increases friction when in contact with the wiring harness insulation. Furthermore, by tilting the friction teeth rows 22a, a force component is generated away from the wiring harness body during the twisting of the outer insulation, further improving the reliability of insulation stripping. Building on the above-described embodiment, the first and second teeth claws 12, 22 begin to move toward each other after the cutter 21 is in place. This arrangement ensures continuity in the insulation process from crack to expansion to complete rupture.

[0041] In an embodiment of the present invention, the specific driving structure implemented by the above-mentioned action is shown in Figure 4. The embodiment of the present invention also includes a first driving mechanism 4, which includes a first linear driving member 41 and a driving plate 42 connected to the first linear driving member 41. The moving direction of the driving plate 42 is perpendicular to the lateral movement direction of the first tool holder 1 and the second tool holder 2. The first guide wheel 13 is fixed on the first tool holder 1 and the second tool holder 2. The driving plate 42 has a first guide groove 42a corresponding to the first guide wheel 13 on the first tool holder 1 and a second guide groove 42b corresponding to the first guide wheel 13 on the second tool holder 2. The first guide groove 42a and the second guide groove 42b both include a vertical section and an inclined section connected to the vertical section. When the driving plate 42 is driven, the first guide wheel 13 in the first guide groove 42a first moves from the inclined section to the vertical section. Of course, it should be pointed out here that in the embodiment of the present invention, the lateral movement of the first tool holder 1 and the second tool holder 2, and the vertical movement of the driving plate 42 can be achieved by the structural form of the slide rail slider, or those skilled in the art can adopt other forms such as guide grooves to achieve it; through the setting of the first guide groove 42a and the second guide groove 42b, when the first guide wheel 13 is in the inclined section and the driving plate 42 moves, the first guide wheel 13 will drive the first tool holder 1 and the second tool holder 2 to move. In the embodiment of the present invention, as shown in Figure 5, when the driving plate 42 moves downward, the first guide wheel 13 moves toward the center under the action of the first guide groove 42a and the second guide groove 42b; the first guide wheel 13 in the first guide groove 42a first moves from the inclined section to the vertical section, which means that the inflection point between the inclined section and the vertical section of the first guide groove 42a is lower. Through such a setting, the blunt knife 11 can be put in place first, and then the cutting knife 21 can be put in place. As described above, this structural form can ensure the accuracy of wire harness cutting.

[0042] Continuing with Figures 5 and 6 , in some embodiments of the present invention, to facilitate movement of the first and second pawls 12, 22 after the cut is complete, a drive plate 42 further includes a U-shaped opening 42c on one end facing the first and second pawls 12, 22. The U-shaped opening 42c has symmetrically arranged inclined surfaces 42c1 near the opening ends. Both the first and second pawls 12, 22 include second guide wheels 14. When the first guide wheels 13 are in a vertical position, the second guide wheels 14 contact the inclined surfaces 42c1. As shown in Figure 5 , only after both first guide wheels 13 are in a vertical position do the inclined surfaces 42c1 contact the second guide wheels 14. At this point, continued downward pressure on the drive plate 42 causes the first and second pawls 12, 22 to begin twisting the wire, thereby breaking the insulation. This arrangement allows the sequential movement of the cutting blade 21 and the blunt blade 11, as well as the cutting and then twisting actions, to be achieved using only a single drive plate 42. This simple structure accomplishes a complex operational process, improving the reliability and durability of the device.

[0043] In some embodiments of the present invention, to achieve the purpose of separating the broken insulation from the wiring harness body without damaging the cutting blade 21, as shown in FIG7 , a second drive mechanism is further included. The second drive mechanism comprises a first base plate 51, a second base plate 52 slidably connected to the first base plate 51, and a second drive member 53 fixed to the second base plate 52, with a drive end connected to the first base plate 51. The first drive member, along with the first and second blade holders 1 and 2, are all disposed on the first base plate 51. Thus, the second drive member 53 drives the movement of the first base plate 51, thereby simultaneously moving the first and second blade holders 1 and 2 away from the clamping jaws 3, thereby achieving the function of separating the broken insulation from the wiring harness body after clamping. It should be noted that the first and second drive members 53 can be implemented in the form of a motor, screw, and nut housing, or other linear drive structures, such as a pneumatic cylinder, hydraulic cylinder, rack and pinion structure, or synchronous belt drive structure. Persons skilled in the art will be able to select the appropriate drive mechanism based on actual needs.

[0044] As shown in Figure 8, an embodiment of the present invention further provides a Fakra connector cable processing device, comprising any of the aforementioned Fakra connector cable core stripping devices 100. It should be noted that the processing device in the embodiment of the present invention replaces the original core stripping and skin stripping devices based on the applicant's prior application in the background art, thereby improving the reliability of the entire device, reducing damage to the tool, and improving the durability of the device.

[0045] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Fakra connector cable stripping device, characterized in that: It comprises a first knife seat and a second knife seat which are arranged in parallel and can be relatively close to or far away from each other, a blunt knife arranged at the end of the first knife seat and a cutting knife arranged on the second knife seat; the blunt knife is arranged in parallel with the cutting knife and in a shearing orientation; The utility model also includes a first tooth claw which is relatively slidably arranged on the first knife seat, and a second tooth claw which is relatively slidably arranged on the second knife seat, wherein the first tooth claw is arranged on the front side of the first knife seat, and the second tooth claw is arranged on the back side of the second knife seat, and the first tooth claw and the second tooth claw are configured to clamp the two sides of the wire harness insulation skin and generate torque when the two are close to each other; Also includes a clamping claw for clamping the wiring harness in a position away from the first and second tool seats; The cutting knife clamps the wire harness and cuts the insulation on the cutting knife side as it approaches the blunt knife, and the first tooth claw and the second tooth claw twist the cut outer end of the insulation as they approach each other, and the first knife seat and the second knife seat move away from the clamping claw under the action of external force to achieve the stripping of the insulation.

2. The Fakra connector cable stripping device according to claim 1, characterized in that: The blunt knife has a V-shaped opening groove on one end facing the cutting knife, and the bottom of the V-shaped opening groove is a semicircle that matches the outer diameter of the wire harness.

3. The Fakra connector cable stripping device according to claim 2, characterized in that: The first tool holder reaches a set position earlier than the second tool holder.

4. The Fakra connector cable stripping device according to claim 1, characterized in that: The cutting knife has an expansion groove on one end facing the blunt knife, the bottom of the expansion groove is a semi-oblong structure, and a blade for cutting the wire harness is arranged in the expansion groove.

5. The Fakra connector cable stripping device according to claim 1, characterized in that: The first tooth claw and the second tooth claw are both in a strip-shaped structure, and both have friction tooth rows for contacting with the wire harness on opposite surfaces, and the friction tooth rows are arranged obliquely.

6. The Fakra connector cable stripping device according to claim 5, characterized in that: The first tooth claw and the second tooth claw begin to approach each other after the cutting knife is in place.

7. The Fakra connector cable stripping device according to claim 1, characterized in that: The first drive mechanism also includes a first linear drive member and a drive plate connected to the first linear drive member, wherein the moving direction of the drive plate is perpendicular to the lateral movement direction of the first tool holder and the second tool holder, and first guide wheels are fixed to the first tool holder and the second tool holder, and the drive plate has a first guide groove corresponding to the first guide wheel on the first tool holder and a second guide groove corresponding to the first guide wheel on the second tool holder, and the first guide groove and the second guide groove both include a vertical section and an inclined section connected to the vertical section, and when the drive plate is driven, the first guide wheel in the first guide groove first moves from the inclined section to the vertical section.

8. The Fakra connector cable stripping device according to claim 7, characterized in that: The driving plate also has a U-shaped opening on one end facing the first claw and the second claw, and the U-shaped opening has symmetrically arranged inclined surfaces near the opening end. The first claw and the second claw both have a second guide wheel, and when the first guide wheel is in the vertical section, the second guide wheel contacts the inclined surface.

9. The Fakra connector cable core stripping device according to claim 7 further includes a second driving mechanism, the second driving mechanism includes a first substrate, a second substrate slidably connected to the first substrate, and a second driving member fixed on the second substrate and connected to the first substrate at a driving end, the first driving member and the first knife seat and the second knife seat are all arranged on the first substrate.

10. A Fakra connector cable processing device, characterized in that: The invention comprises the Fakra connector cable core stripping device as claimed in any one of claims 1 to 9.

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