WO2025055245A1 - Fakra-connector-cable core stripping device and fakra-connector-cable processing apparatus - Google Patents

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

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

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 net and insulation skin from the center to the outer layer of the cable. Therefore, the cable end processing of Fakra connectors is also 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.

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

However, the inventors have 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

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.

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 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.

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.

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

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.

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 with the wiring harness on opposite surfaces, and the friction tooth rows are arranged obliquely.

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.

In some embodiments of the present invention, a first driving mechanism is further included, wherein the first driving mechanism includes a first linear driving member and a driving plate connected to the first linear driving member, wherein a moving direction of the driving plate is perpendicular to a lateral 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 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, 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 driving plate is driven, the first guide wheel in the first guide groove first moves from the inclined section to the vertical section.

In some embodiments of the present invention, 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 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.

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 a driving end, and the first driving member and the first tool holder and the second tool holder are all arranged on the first substrate.

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.

The beneficial effects of the present invention are as follows: the present invention uses a blunt knife and a cutting knife to cut the insulating skin, and then applies torque to the cut insulating skin through the first tooth claw and the second tooth claw, so that the insulating skin breaks from the cut opening, and then uses the clamping force between the first tooth claw and the second tooth claw to cooperate with the clamping claw to realize the detachment of the insulating skin. Through the above-mentioned arrangement, there is no need to apply force with the blade during the stripping process of the insulating skin, and compared with the prior art, the reliability and life of the blade are improved.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

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

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

FIG3 is a schematic diagram of the structure of the first tooth claw and the second tooth claw in an embodiment of the present invention;

FIG4 is a schematic structural diagram of a first driving mechanism in an embodiment of the present invention;

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

FIG6 is a schematic diagram of the structure of a driving plate in an embodiment of the present invention;

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;

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

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

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

The Fakra connector cable stripping device as shown in FIGS. 1 to 7 comprises a first knife seat 1 and a second knife seat 2 which are arranged in parallel and relatively close to or far from each other, 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 as shown in FIG. 1, the length directions of the first knife seat 1 and the second knife seat 2 are arranged in parallel, and the blunt knife 11 and the cutting knife 21 are arranged in a shearing orientation, which means that the inner surface of the cutting knife 21 fits the outer surface of the blunt knife 11, so that the cutting knife 21 can cut the insulation skin of the wire harness between the two when in contact with the blunt knife 11; it should be pointed out here that the insulation skin in the embodiment of the present invention can refer to the outer insulation skin or the inner insulation skin;

Please continue to refer to Figures 1 and 3. In the embodiment of the present invention, it also includes a first tooth claw 12 that can be relatively slidably arranged on the first knife seat 1 and a second tooth claw 22 that can be relatively slidably arranged on the second knife seat 2. The first tooth claw 12 is arranged on the front side of the first knife seat 1, and the second tooth claw 22 is arranged on the back side of the second knife seat 2. The first tooth claw 12 and the second tooth claw 22 are configured to clamp the two sides of the wire harness insulation skin and generate torsion when the two are close to each other; as shown in Figure 1, when the first tooth claw 12 and the second tooth claw 22 are in contact with the wire harness, the line connecting the contact points of the two with the wire harness is the diameter direction of the wire harness. Since the two are respectively located on both sides of the wire harness, when the two are close to each other, they contact the insulation skin and generate torsion force, so that the incision cut by the cutting knife 21 can be further enlarged;

As shown in FIG. 1 , 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;

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 jaw 3 under the action of external force to realize the stripping of the insulation.

When performing the operation, firstly, the end of the cable is inserted into the position between the blunt knife 11 and the cutting knife 21, and then the wiring harness is fixed, and 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 are moved toward the wiring harness on both sides of the wiring harness, and continue to move after contacting the cut insulation of the wiring harness, so as to generate torque on the insulation of the wiring harness to increase the crack to complete or incomplete break; then the first tooth claw 12 and the second tooth claw 22 continue to clamp the cut insulation of the wiring harness without loosening, and the first knife seat 1 and the second knife seat 2 are synchronously moved away from the clamping jaw 3, so that the insulation is detached or completely broken and then detached from the wiring harness body.

In the above embodiment, the insulating 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 torque to the cut insulating skin, so that the insulating skin breaks from the cut mouth, and then the clamping force between the first tooth claw 12 and the second tooth claw 22 is used to cooperate with the clamping jaw 3 to realize the separation of the insulating skin. Through the above arrangement, there is no need for the blade 21a1 to apply force during the stripping process of the insulating skin, which improves the reliability and life of the blade 21a1 compared with the prior art.

On the basis of the above-mentioned 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 semicircle that matches the outer diameter of the wire harness. The setting of the V-shaped opening groove 11a facilitates the capture of the wire harness during movement, and by setting the bottom of the groove to a semicircle that matches the wire harness, it is beneficial to improve the stability of the wire harness when it is cut. In the embodiment of the present invention, the first knife seat 1 reaches the set position first relative to the second knife seat 2. Through such a setting, the blunt knife 11 plays a positioning role. It arrives first, and then positions the wire harness before cutting, which is beneficial to the accuracy of cutting and prevents damage to the wire harness structure inside the insulation skin.

Please continue to refer to FIG. 2. In some embodiments of the present invention, the end of the cutting knife 21 facing the blunt knife 11 has a flared groove 21a, the bottom of the flared groove 21a is a semi-long circular structure, and the flared groove 21a has a blade 21a1 for cutting the wire harness. In this arrangement, the semi-long circular structure here refers to the structure of half of the slotted hole. Through this arrangement, the cutting area of the cutting knife 21 can be larger during cutting. In addition to the semi-circular part being cut, the blade 21a1 with the long circular structure also cuts both sides of the wire harness synchronously during the process of moving toward the blunt knife 11. The cut matches the force direction of the first tooth claw 12 and the second tooth claw 22 when twisting, thereby improving the reliability of twisting off the insulation skin.

As shown in FIG3 , in the embodiment of the present invention, the first tooth claw 12 and the second tooth claw 22 are both in a strip-shaped structure, and both have friction tooth rows 22a for contacting the wire harness on the opposite surfaces, and the friction tooth rows 22a are arranged at an angle. By setting the tooth claws, the friction force when contacting the wire harness insulation can be increased, and by setting the friction tooth rows 22a at an angle, a component force away from the wire harness body can be generated in the process of twisting the outer insulation, which can further improve the reliability of insulation peeling. On the basis of the above embodiment, the first tooth claw 12 and the second tooth claw 22 begin to approach each other after the cutting knife 21 is in place. By such a setting, the continuity of the process from the crack to the crack expansion to the complete break on the insulation can be guaranteed.

In an embodiment of the present invention, a specific driving structure for realizing the above-mentioned action is shown in FIG4 . 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 both 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 the technicians in this field 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.

Please continue to refer to FIG. 5 and FIG. 6. In some embodiments of the present invention, in order to realize the movement of the first tooth claw 12 and the second tooth claw 22 after the cutting is in place, the driving plate 42 is further provided with a U-shaped opening 42c on one end facing the first tooth claw 12 and the second tooth claw 22. The U-shaped opening 42c has a symmetrically arranged inclined surface 42c1 near the opening end. The first tooth claw 12 and the second tooth claw 22 are both provided with a second guide wheel 14. When the first guide wheel 13 is in the vertical section, the second guide wheel 14 contacts the inclined surface 42c1. As shown in FIG. 5, when both first guide wheels 13 are in the vertical section, the inclined surface 42c1 contacts the second guide wheel 14. At this time, the driving plate 42 is continuously pressed down, and the first tooth claw 12 and the second tooth claw 22 begin to twist the wire, so as to realize the breaking of the insulation skin. Through the above-mentioned setting, the movement of the cutting knife 21 and the blunt knife 11 in sequence, as well as the action of cutting first and then twisting off, are realized only by one driving plate 42. The complex action process is completed in a simple structural form, and the reliability and durability of the device are improved.

In some embodiments of the present invention, in order to separate the broken insulation from the wiring harness body without damaging the cutting knife 21, as shown in FIG. 7, a second driving mechanism is also included, the second driving mechanism includes a first substrate 51, a second substrate 52 that can be relatively slidably connected to the first substrate 51, and a second driving member 53 fixed on the second substrate 52 and connected to the first substrate 51 at the driving end, and the first driving member and the first knife seat 1 and the second knife seat 2 are all arranged on the first substrate 51. In this way, the movement of the first substrate 51 is driven by the second driving member 53, thereby driving the entire first knife seat 1 and the second knife seat 2 to move away from the clamping claw 3 synchronously, so as to realize the function of separating the insulation from the wiring harness body after clamping the broken insulation; it should be pointed out here that the first driving member and the second driving member 53 here can be realized in the form of a motor screw nut seat structure, or other linear driving structures such as a cylinder, a hydraulic cylinder, a gear rack structure, a synchronous belt drive structure, etc., and those skilled in the art can choose according to actual needs.

As shown in Fig. 8, an embodiment of the present invention further provides a Fakra connector cable processing device, including any of the above-mentioned Fakra connector cable core stripping devices 100. It should be pointed out here that the processing device in the embodiment of the present invention replaces the original core stripping and skin stripping devices on the basis of the applicant's prior application in the background technology, thereby improving the reliability of the whole set of equipment, reducing the damage of the tool, and improving the durability of the equipment.

Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (10)

A Fakra connector cable core 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. The Fakra connector cable core stripping device according to claim 1 is 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. The Fakra connector cable core stripping device according to claim 2, characterized in that the first knife seat reaches the set position before the second knife seat. The Fakra connector cable core stripping device according to claim 1 is characterized in that the cutting knife has a flaring groove on one end facing the blunt knife, the bottom of the flaring groove is a semi-oblong structure, and the flaring groove has a blade for cutting the wire harness. The Fakra connector cable stripping device according to claim 1 is characterized in that the first tooth claw and the second tooth claw are both strip-shaped structures, and both have friction tooth rows on opposite surfaces for contacting the wire harness, and the friction tooth rows are arranged obliquely. The Fakra connector cable core 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. The Fakra connector cable core stripping device according to claim 1 is characterized in that it also includes a first driving mechanism, the first driving mechanism 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 knife seat and the second knife seat, and the first guide wheel is fixed on the first knife seat and the second knife seat, and the driving plate has a first guide groove corresponding to the first guide wheel on the first knife seat and a second guide groove corresponding to the first guide wheel on the second knife seat, 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 driving plate is driven, the first guide wheel in the first guide groove first moves from the inclined section to the vertical section. The Fakra connector cable core stripping device according to claim 7 is characterized in that the drive plate also 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. 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. A Fakra connector cable processing device, characterized by comprising the Fakra connector cable core stripping device according to any one of claims 1 to 9.