Shielded cable harness turning and cutting device

Abstract

The invention relates to the technical field of wire harness processing, in particular to a shielding network wire harness turning and cutting device, which comprises a wire cutting mechanism comprising a clamping cutter holder assembly, a first rotary wire turning assembly arranged opposite to the clamping cutter holder assembly, and a cutter shaft assembly arranged at the center of the first rotary wire turning assembly and coaxial with the clamping cutter holder assembly; the wire turning mechanism and the wire cutting mechanism are arranged in parallel, and a second rotary wire turning assembly is arranged in the wire turning mechanism; the wire harness carrier is arranged at the front ends of the wire cutting mechanism and the wire turning mechanism and is used for clamping and transferring the wire harness; wherein the first rotary wire turning assembly is used for scattering a shielding net on a wire harness and turning the shielding net to the clamping cutter holder assembly, the cutter shaft and the clamping cutter holder assembly extrude to cut off redundant shielding wires, and the length of the remaining shielding wires is matched with the length of a wire harness shielding ring. According to the invention, the redundant length of the shielding wire is cut off, and then the shielding net is turned over to the copper ring, so that the damage to the wire harness is avoided, and the yield of the wire harness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness processing, and in particular to a shielding net wire harness turning and cutting device. Background Art

[0002] Shielded wire harness refers to a wire harness structure that wraps one or more layers of metal shielding mesh on the outside of the cable or harness, designed to protect the internal wires from electromagnetic interference (EMI) and radio frequency interference (RFI). They are widely used in communications, industrial automation, automotive electronics, aerospace and other fields to ensure the stability and reliability of signal transmission.

[0003] In related technologies, such as Figure 1 As shown in the figure, when processing the shielded mesh wire harness, it is necessary to first put a copper ring 01 on the wire harness, and then fold the exposed shielding mesh 180 degrees so that the shielding mesh is covered on the copper ring 01. However, due to process requirements, it is necessary to cut off the portion of the shielding mesh that exceeds the copper ring 01. In the prior art, this is mostly done by cutting directly on the wire harness.

[0004] However, the above-mentioned cutting method easily causes damage to the outer sheath of the wire harness, resulting in a low yield rate of the wire harness. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a shielding net wire harness turning-cutting device, which adopts structural improvement to improve the reliability of shielding net turning-cutting.

[0006] According to a first aspect of the present invention, a shielding network harness cutting device is provided, comprising: The wire cutting mechanism comprises a clamping knife seat assembly, a first rotating wire turning assembly arranged opposite to the clamping knife seat assembly, and a knife shaft assembly arranged at the center of the first rotating wire turning assembly and coaxially arranged with the clamping knife seat assembly; A wire turning mechanism, arranged in parallel with the wire cutting mechanism, wherein the wire turning mechanism has a second rotating wire turning component; A wire harness carrier, arranged at the front end of the wire cutting mechanism and the wire turning mechanism, and used for clamping and transferring the wire harness; Among them, the first rotating wire turning assembly is used to loosen the shielding net on the wire harness and fold it onto the clamping knife seat assembly, and the knife shaft and the clamping knife seat assembly squeeze and cut off the excess shielding wire, and the length of the remaining shielding wire is adapted to the length of the wire harness shielding ring.

[0007] In some embodiments of the present invention, the clamping tool holder assembly includes two clamping blocks that are arranged opposite to each other and can move away from or approach each other. Half-tube tool holders are detachably fixed on the surfaces of the two clamping blocks facing each other. When the two half-tube tool holders are approached and fit together, a complete tubular tool holder structure is formed.

[0008] In some embodiments of the present invention, the half-tube tool holder includes a connecting portion and a tapered portion protruding from the connecting portion at an edge of the connecting portion, and a through groove is formed in the tapered portion and the connecting portion toward the tool shaft assembly.

[0009] In some embodiments of the present invention, the through groove is flared in the direction toward the outer sides of the tapered portion and the connecting portion.

[0010] In some embodiments of the present invention, the first rotary wire turning assembly comprises a hollow shaft, a rotary driving member for driving the hollow shaft to rotate, and a wire turning device arranged at the end of the hollow shaft toward the clamping tool holder assembly; The wire turning devices are symmetrically arranged with two of them, and the wire turning devices include a brush wheel with a brush and a wire turning driving member for driving the brush wheel to rotate relative to the proximal end of the wire harness.

[0011] In some embodiments of the present invention, one end of the two wire turning devices is rotatably connected to the hollow shaft, and the first rotary wire turning assembly further includes an opening and closing driving mechanism for driving the brush wheels of the two wire turning devices to move closer to or away from each other.

[0012] In some embodiments of the present invention, the opening and closing drive mechanism includes a swing arm radially protruding from the rotating shaft of the wire turner, a transmission rod rotatably connected to the swing arm, a drive shaft rotatably connected to the transmission rod, a drive disk rotatably connected to the drive shaft, and an opening and closing drive component for driving the drive disk to drive the drive shaft forward or backward.

[0013] In some embodiments of the present invention, the drive shaft is movably arranged in the axial direction of the hollow shaft and rotates with the hollow shaft. The end of the drive shaft away from the transmission rod is rotatably connected to the drive disk and makes circular motion on the drive disk.

[0014] In some embodiments of the present invention, the knife shaft assembly includes a hollow knife shaft coaxially disposed in the hollow shaft, and the hollow knife shaft has a blade on one end facing the clamping knife seat assembly.

[0015] In some embodiments of the present invention, the knife shaft assembly further includes a wire cutting drive member connected to the hollow knife shaft and used to drive the hollow knife shaft to move toward or away from the clamping knife seat assembly.

[0016] The beneficial effects of the present invention are as follows: the present invention, through the setting of the first rotating wire turning assembly in the wire cutting mechanism, flips the shielding net on the wire harness onto the knife seat assembly and then uses the knife shaft assembly to first cut off the excess length of the shielding wire, and then flips the shielding net with the excess shielding wire cut off onto the copper ring through the wire turning assembly. Compared with the method of first folding and then cutting the shielding net in the prior art, damage to the wire harness is avoided, thereby improving the yield rate of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the existing shielding net cutting structure in the background technology of the present invention; Figure 2 It is a schematic structural diagram of a shielded wire harness turning and cutting device in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a slicing mechanism in an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of cutting wires of the wire harness shielding net in an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a clamping tool holder assembly in an embodiment of the present invention; Figure 6 Schematic diagram of the structure of a half-tube tool holder in an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a first rotary wire turning assembly in an embodiment of the present invention; Figure 8 It is a structural schematic diagram of the opening and closing driving mechanism in an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a knife shaft assembly in an embodiment of the present invention; Fig.10 It is a schematic diagram of the cutting structure of the wire harness shielding net in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] like Figures 2 to 10 The shielded wire harness turning and cutting device shown in the figure comprises a wire cutting mechanism 1, a wire turning mechanism 2 and a wire harness carrier 3, as shown in FIG. Figure 2 As shown in the figure, the wire cutting mechanism 1 includes a clamping knife seat assembly 11, a first rotating wire turning assembly 12 arranged opposite to the clamping knife seat assembly 11, and a knife shaft assembly 13 arranged at the center of the first rotating wire turning assembly 12 and coaxially arranged with the clamping knife seat assembly 11; in an embodiment of the present invention, the clamping knife seat assembly 11 is used to carry the shielding wire of the wire harness when turning the wire, so that the excess shielding wire can be cut off when the subsequent knife shaft assembly 13 contacts the clamping knife seat assembly 11; and the function of the first rotating wire turning assembly 12 is to scatter and turn the shielding wire, and turn the shielding wire to Figure 4 and in the embodiment of the present invention, the knife shaft assembly 13 is arranged at the center of the first rotary wire turning assembly 12, which can reduce space occupation and improve the continuity and reliability of the operation; Please continue to refer to Figure 2 In the embodiment of the present invention, the wire turning mechanism 2 and the wire cutting mechanism 1 are arranged in parallel, and the wire turning mechanism 2 has a second rotary wire turning assembly; the second rotary wire turning assembly is used to turn the remaining shielding wires on the wire harness shielding net onto the copper ring. In the embodiment of the present invention, the structure of the second rotary wire turning assembly is substantially the same as that of the first rotary wire turning assembly 12, except that the second rotary wire turning assembly does not have the knife shaft assembly 13 in the first rotary wire turning assembly 12; The wire harness carrier 3 is arranged at the front end of the wire cutting mechanism 1 and the wire turning mechanism 2, and is used for clamping and transferring the wire harness; the wire harness carrier 3 has a variety of structural forms in the prior art, such as a three-axis moving system made of a screw rod and a guide rail, which can realize the clamping and lateral and longitudinal transfer of the wire harness. Of course, technical personnel in this field can also adopt other structural forms to realize the transfer of the wire harness as needed.

[0023] In an embodiment of the present invention, the first rotating wire turning assembly 12 is used to break up the shielding net on the wire harness and fold it onto the clamping knife seat assembly 11. The knife shaft and the clamping knife seat assembly 11 squeeze and cut off the excess shielding wire, and the length of the remaining shielding wire is adapted to the length of the shielding ring of the wire harness. In the following embodiments of the present invention, the specific structure will be introduced exemplarily, but it cannot be considered as a limitation of the present application.

[0024] In the above embodiment, through the setting of the first rotating wire turning assembly 12 in the wire cutting mechanism 1, the shielding net on the wire harness is turned over to the knife seat assembly and then the knife shaft assembly 13 is used to first cut off the excess length of the shielding wire, and then the shielding net with the excess shielding wire cut off is turned over to the copper ring through the wire turning assembly. Compared with the method of first folding and then cutting the shielding net in the prior art, damage to the wire harness is avoided, thereby improving the yield rate of the wire harness.

[0025] On the basis of the above embodiments, in some embodiments of the present invention, the specific structure of the clamping tool holder assembly 11 is as follows: Figure 5 As shown in the figure, the clamping knife seat assembly 11 includes two clamping blocks 111 that are arranged opposite to each other and can move away from or approach each other. The surfaces of the two clamping blocks 111 facing each other are detachably fixed with half-tube knife seats 112. When the two half-tube knife seats 112 are close to each other and fit together, a complete tubular knife seat structure is formed. In the embodiment of the present invention, when the two half-tube knife seats 112 are close to each other and fit together, a tubular structure surrounding the wire harness can be formed, and the ends of the two storage knife seats are used to cut off the shielding net.

[0026] Please refer to Figure 5 In some embodiments of the present invention, the half-tube knife seat 112 includes a connecting portion 112a and a tapered portion 112b protruding from the connecting portion 112a at the edge of the connecting portion 112a, and a through slot 112c is provided in the tapered portion 112b and the connecting portion 112a toward the knife shaft assembly 13. Through the provision of the through slot 112c, the wire harness can be inserted and the shielding net can be exposed in the direction of the half-tube knife seat 112 toward the first rotating wire turning assembly 12; in some embodiments of the present invention, please continue to refer to Figure 5 The through groove 112c is flared in the direction toward the outer side of the tapered portion 112b and the connecting portion 112a. The flared setting not only facilitates the insertion of the wire harness and improves the insertion accuracy, but also facilitates the shielding net to fit on the inner wall of the flared shape, making the cutting more accurate.

[0027] The specific structure of the first rotating wire turning assembly 12 is as follows: Figure 3As shown in the figure, the first rotating wire turning assembly 12 includes a hollow shaft 121, a rotating driving member 122 driving the hollow shaft 121 to rotate, and a wire turning device 123 arranged at the end of the hollow shaft 121 toward the clamping knife seat assembly 11; two wire turning devices 123 are symmetrically arranged, and the wire turning devices 123 include a brush wheel 123a with a brush and a wire turning driving member 123b for driving the brush wheel 123a to rotate relative to the proximal end of the wire harness. When the wire is turned, the two brush wheels 123a rotate toward each other, that is, Figure 3 As shown in the figure, the brush wheel 123a on the right rotates counterclockwise, and the brush wheel 123a on the left rotates clockwise. Through this rotation, the shielding wire between the two can be broken up and flipped. Through the setting of the hollow shaft 121 and the rotating drive member 122, the two wire turning devices 123 can achieve 360-degree wire turning, thereby improving the wire turning effect.

[0028] In some embodiments of the present invention, in order to facilitate placing the wire harness between the two wire turning devices 123 and removing the wire harness from the wire turning devices 123 after the wire turning is completed, one end of the two wire turning devices 123 is rotatably connected to the hollow shaft 121, and the first rotating wire turning assembly 12 also includes an opening and closing drive mechanism 124 for driving the brush wheels 123a of the two wire turning devices 123 to move closer to or away from each other. Of course, it should be pointed out here that there are many ways to drive the two wire turning devices 123 to move closer to or away from each other, for example, the rotation of the motor can drive the angles of the two wire turning devices 123 to open or merge, or the two wire turning devices 123 can be moved closer to or away from each other by a clamping cylinder, or the two wire sorters can be moved closer to or away by a clamping cylinder.

[0029] In some embodiments of the present invention, Figure 7 and Figure 8 As shown in , the opening and closing driving mechanism 124 includes a swing arm 124a radially protruding from the rotating shaft of the wire turning device 123, a transmission rod 124b rotatably connected to the swing arm 124a, a driving shaft 124c rotatably connected to the transmission rod 124b, a driving disk 124d rotatably connected to the driving shaft 124c, and an opening and closing driving member 124e for driving the driving disk 124d to drive the driving shaft 124c to move forward or backward. Figure 8 As shown in, in the embodiment of the present invention, the wire turning device 123 is rotatably connected to the hollow shaft 121 via a rotating shaft, and the swing arm 124a extends radially along the rotating shaft. When the driving shaft 124c moves forward, the brush wheel 123a of the wire turning device 123 moves toward the middle under the action of the transmission shaft and the swing arm 124a, and then under the synchronous action of the two transmissions, the two brush wheels 123a approach each other, otherwise the two brush wheels 123a move away from each other to separate.

[0030] In the embodiment of the present invention, since the wire turning device 123 is rotatably connected to the hollow shaft 121 and rotates with the hollow shaft 121, in order to make the driving shaft 124c rotate with the hollow shaft 121, please continue to refer to Figure 8 The driving shaft 124c is movably arranged in the axial direction of the hollow shaft 121, and rotates with the hollow shaft 121. The end of the driving shaft 124c away from the transmission rod 124b is rotatably connected to the driving disk 124d, and performs circular motion on the driving disk 124d. Specifically, an annular groove can be provided on the driving disk 124d, and a roller that can rotate in the annular groove is provided on the driving shaft 124c, so that the driving disk 124d only moves in the axial direction. When the hollow shaft 121 rotates, the roller on the driving shaft 124c rotates on the driving disk 124d, thereby realizing the axial movement of the driving shaft 124c through the forward and backward movement of the driving disk 124d, and does not affect the rotation of the driving shaft 124c, so that the hollow shaft 121 can synchronously realize the opening and closing of the wire turning device 123 when rotating.

[0031] In some embodiments of the present invention, the specific structure of the knife shaft assembly 13 is as follows: Fig. 9 As shown in , the knife shaft assembly 13 includes a hollow knife shaft 13a coaxially arranged in the hollow shaft 121, and a knife edge 13a1 is provided on one end of the hollow knife shaft 13a facing the clamping knife seat assembly 11. In the embodiment of the present invention, the hollow knife shaft 13a is coaxially arranged with the hollow shaft 121, that is, the hollow knife shaft 13a is arranged at the axis of the hollow shaft 121 and is axially movable. Through this arrangement, after the shielding wire is folded onto the clamping knife seat assembly 11, it is moved toward the merged half-tube knife seat 112 through the hollow knife shaft 13a, as shown in FIG. Figure 4 As shown in , the blade 13a1 on the hollow blade shaft 13a contacts the end surface of the half-tube blade seat 112 to cut off the shielding wire. For the axial movement of the hollow blade shaft 13a, please refer to Fig. 9 The cutter shaft assembly 13 also includes a wire cutting drive 13b which is used to drive the hollow cutter shaft 13a to move toward or away from the clamping cutter seat assembly 11. The wire cutting drive 13b here has various structural forms, for example, it can be driven by the movement of the cylinder to drive the axial movement of the hollow cutter shaft 13a, or it can be as follows Fig. 9 As shown in the figure, the axial movement of the hollow knife shaft 13a is achieved by means of a motor screw.

[0032] In the exemplary application scenario of the present invention, please refer to Fig.10 The shielding wire of the wire harness is first folded on the wire cutting mechanism 1 and the excess shielding wire is cut off by the hollow knife shaft 13a on the clamping knife seat assembly 11. After the shielding wire is cut off, the remaining shielding wire is secondarily turned by the wire turning mechanism 2, and the remaining shielding wire is turned 180 degrees onto the copper ring.

[0033] 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

1. A shielded wire harness cutting device, characterized in that: include: The wire cutting mechanism comprises a clamping knife seat assembly, a first rotating wire turning assembly arranged opposite to the clamping knife seat assembly, and a knife shaft assembly arranged at the center of the first rotating wire turning assembly and coaxially arranged with the clamping knife seat assembly; A wire turning mechanism, arranged in parallel with the wire cutting mechanism, wherein the wire turning mechanism has a second rotating wire turning component; A wire harness carrier, arranged at the front end of the wire cutting mechanism and the wire turning mechanism, and used for clamping and transferring the wire harness; Among them, the first rotating wire turning assembly is used to loosen the shielding net on the wire harness and fold it onto the clamping knife seat assembly, and the knife shaft and the clamping knife seat assembly squeeze and cut off the excess shielding wire, and the length of the remaining shielding wire is adapted to the length of the wire harness shielding ring.

2. The shielding wire harness cutting device according to claim 1, characterized in that: The clamping tool holder assembly includes two clamping blocks which are arranged opposite to each other and can move away from or approach each other. Half-tube tool holders are detachably fixed on the surfaces of the two clamping blocks facing each other. When the two half-tube tool holders are close to each other and fit together, a complete tubular tool holder structure is formed.

3. The shielding wire harness cutting device according to claim 2, characterized in that: The half-tube tool holder comprises a connecting portion and a tapered portion protruding from the connecting portion at the edge of the connecting portion, and a through groove is formed in the tapered portion and the connecting portion in a direction toward the tool shaft assembly.

4. The shielding wire harness cutting device according to claim 3, characterized in that: The through grooves are all flared in the direction toward the outer sides of the tapered portion and the connecting portion.

5. The shielding wire harness cutting device according to claim 1, characterized in that: The first rotary wire turning assembly comprises a hollow shaft, a rotary driving member for driving the hollow shaft to rotate, and a wire turning device arranged at the end of the hollow shaft and facing the clamping knife seat assembly; The wire turning devices are symmetrically arranged with two of them, and the wire turning devices include a brush wheel with a brush and a wire turning driving member for driving the brush wheel to rotate relative to the proximal end of the wire harness.

6. The shielding wire harness cutting device according to claim 5, characterized in that: One end of the two wire turning devices is rotatably connected to the hollow shaft, and the first rotating wire turning assembly also includes an opening and closing driving mechanism for driving the brush wheels of the two wire turning devices to move closer to or away from each other.

7. The shielding wire harness cutting device according to claim 6, characterized in that: The opening and closing drive mechanism includes a swing arm radially protruding from the rotating shaft of the wire turning device, a transmission rod rotatably connected to the swing arm, a driving shaft rotatably connected to the transmission rod, a driving disk rotatably connected to the driving shaft, and an opening and closing drive member for driving the driving disk to drive the driving shaft forward or backward.

8. The shielding wire harness cutting device according to claim 7, characterized in that: The driving shaft is movably arranged in the axial direction of the hollow shaft and rotates with the hollow shaft. One end of the driving shaft away from the transmission rod is rotatably connected to the driving disk and performs circular motion on the driving disk.

9. The shielding wire harness cutting device according to claim 5, characterized in that: The knife shaft assembly comprises a hollow knife shaft coaxially arranged in the hollow shaft, and a knife edge is provided on one end of the hollow knife shaft facing the clamping knife seat assembly.

10. The shielding wire harness cutting device according to claim 9, characterized in that: The knife shaft assembly also includes a wire cutting drive member which is used to drive the hollow knife shaft to move toward or away from the clamping knife seat assembly.

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