Wire harness shielding wire cutting device and method

Abstract

The invention relates to the technical field of intelligent wire harness production, in particular to a wire harness shielding wire cutting device and method.The device is characterized in that a displacement table is slidably arranged on a rack, and a wire inlet is formed in the end, facing a machining station, of the displacement table; the shielding wire extruding mechanism comprises at least three extruding cutters which are engaged with one another and extrude the wire harness in the circumferential direction. The stamping shielding wire mechanism comprises a stamping head which can be relatively close to or far away from the wire inlet, and the stamping head and the wire inlet are used for stamping and cutting shielding wires; the positioning mechanism comprises two clamping jaws which are folded towards the opposite directions of the wire harness, and when the clamping jaws are folded, the clamping jaws are as high as the wire inlet. The shielding wire is extruded in the circumferential direction of the wire harness through the at least three mutually-engaged extrusion knives, damage to the wire harness is avoided, the shielding wire is accurately punched and cut through the punching head, and the problems that the shielding wire is left and shearing is not uniform during traditional mechanical cutting are solved; accurate positioning of the wire harness is achieved by folding the two clamping jaws, the dislocation problem in the cutting process is avoided, and the cutting result is more accurate.

Description

Technical Field

[0001] This invention relates to the field of intelligent wire harness production technology, and in particular to a wire harness shielding wire cutting device and method. Background Technology

[0002] Intelligent wire harnesses are widely used in modern electronic systems and the automotive industry. A wire harness consists of multiple conductors and insulating materials. Shielding wire, as a crucial component, is primarily used to block external electromagnetic interference, protecting signal transmission quality and ensuring stable equipment operation. During production, when crimping terminals at the wire harness ends, the shielding wire needs to be precisely cut to adjust its length and facilitate wire harness assembly. The cutting of the shielding wire must ensure shielding performance without compromising the integrity of other wire harness layers.

[0003] In existing technologies, shielding wires are typically removed using mechanical methods such as cutters or extruders. While these traditional methods can achieve the desired cuts, the precision of the mechanical tools and the complexity of the operation mean that the insulation layer or conductors of the wire harness can easily be damaged during the cutting process. Simple mechanical cutting methods may result in incomplete shearing of the shielding wire, uneven residue, affecting the final performance and product quality of the wire harness, and limiting the reliability and processing efficiency of the wire harness.

[0004] Therefore, there is an urgent need for a device and method capable of precisely cutting shielding wires. This improved approach addresses the problem of potential damage to other layers of the wire harness during the cutting process using traditional techniques, enabling safe and stable removal of the shielding wires. This effectively improves the quality of wire harness processing, reduces scrap rates in production, and enhances the overall performance and reliability of electronic systems. Summary of the Invention

[0005] In view of at least one of the above technical problems, the present invention provides a wire harness shielding wire cutting device and method, which adopts structural improvements to reduce the scrap rate in wire harness production.

[0006] According to a first aspect of the present invention, a wire harness shielding wire cutting device is provided, comprising: A frame, on which a displacement stage is slidably mounted, the displacement stage being able to move relatively close to or away from the processing position, and the end of the displacement stage facing the processing position having a wire inlet; The extrusion shielding wire mechanism is located on the side of the wire inlet away from the processing position, and includes at least three interlocking extrusion blades that extrude the wire harness circumferentially. A shielding wire stamping mechanism is provided on the side of the shielding wire extrusion mechanism away from the wire inlet, including a stamping head that can be relatively close to or away from the wire inlet, the stamping head having a conduit for accommodating the wire bundle, the stamping head stamping and cutting the shielding wire with the wire inlet; The positioning mechanism is located between the wire inlet and the processing position, and includes two grippers that converge in opposite directions toward the wire harness. When the grippers are closed, the grippers are at the same height as the wire inlet.

[0007] In some embodiments of the present invention, the inlet port also has a guide port facing the opposite direction of the processing position.

[0008] In some embodiments of the present invention, the gripper includes an arc-shaped positioning portion and a picking portion connected to the arc-shaped positioning portion.

[0009] In some embodiments of the present invention, at the biting point of two adjacent extrusion blades, one side has a limiting groove and the other side has a limiting strip extending into the limiting groove. The limiting strip is slidably disposed relative to each other in the limiting groove. The surface of the limiting strip is a raised pointed structure, and the raised pointed structure faces the shielding wire.

[0010] In some embodiments of the present invention, the extrusion shielding wire mechanism further includes a driving component that drives the extrusion blades to move closer to or further away from each other, the driving component synchronously driving the extrusion blades to move closer to or further away from each other.

[0011] In some embodiments of the present invention, the displacement stage is further provided with a wire baffle plate, the wire baffle plate having a through hole, the punching head passing through the through hole when it approaches the wire inlet, and leaving the through hole when it moves away from the wire inlet.

[0012] In some embodiments of the present invention, the diameter of the through hole is larger than the diameter of the stamping head.

[0013] In some embodiments of the present invention, the end of the stamping head is circular, and the stamping head is rotatably mounted on the displacement table with the center of the circle as the center.

[0014] In some embodiments of the present invention, the wire inlet, the stamping head, and the wire baffle are all interchangeable parts with compatible dimensions.

[0015] According to a second aspect of the present invention, a method for cutting wire harness shielding wire is also provided, comprising the following steps: The displacement table moves closer to the machining position and uses the positioning mechanism to pick up the wire harness, making the wire harness the same height as the wire inlet. After positioning, the wire harness passes through the inlet and enters the shielding wire extrusion mechanism. The extrusion knife extrudes the wire harness circumferentially, causing the shielding wire to burst open. The shielding wire stamping mechanism moves toward the inlet, the wire harness enters the pipe, the shielding wire is located outside the stamping head, and the shielding wire is cut by the stamping action of the stamping head and the inlet. The stamping mechanism returns to its initial position, the wire harness is removed, and the cutting is completed.

[0016] The beneficial effects of this invention are as follows: The sliding displacement stage allows for precise adjustment of the stage relative to the processing position, ensuring the wire harness enters the processing area while maintaining its stability. The shielding wire extrusion mechanism, located on the other side of the inlet, employs at least three interlocking extrusion blades to extrude the shielding wire circumferentially from the wire harness. This evenly distributes pressure, preventing damage to the wire harness insulation layer or conductors. Compared to traditional cutting methods, this method reduces damage to the wire harness layer during mechanical cutting while ensuring the integrity of the shielding wire. The shielding wire stamping mechanism improves cutting accuracy. The stamping head, which can be positioned relatively close or far from the inlet, precisely stamps and cuts the shielding wire, avoiding the problems of wire residue and uneven cutting common in traditional mechanical cutting. The positioning mechanism, through the reverse closing of two grippers, achieves precise positioning of the wire harness, ensuring the wire harness maintains an appropriate height between the inlet and the processing position, avoiding misalignment during cutting and resulting in more accurate cutting. The technical solution of this invention improves production efficiency and reduces scrap rates. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a side view of the wire harness shielding wire cutting device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the wire harness shielding wire cutting device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the positioning mechanism in the wire harness shielding wire cutting device in an embodiment of the present invention; Figure 4 This is a schematic diagram of the guide port structure in the wire harness shielding wire cutting device in an embodiment of the present invention; Figure 5 This is a schematic diagram of the wire baffle plate and extrusion blade in the wire harness shielding wire cutting device in an embodiment of the present invention; Figure 6 This is a schematic diagram of the extrusion blade in the wire harness shielding wire cutting device from another perspective in an embodiment of the present invention; Figure 7 This is a schematic diagram of the extrusion blade in the wire harness shielding wire cutting device from another perspective in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the punching head of the wire harness shielding wire cutting device near the wire inlet in an embodiment of the present invention; Figure 9As described in the embodiments of the present invention Figure 8 Enlarged structural diagram at point A; Figure 10 This is a schematic diagram of the structure of the wire harness shielding wire cutting device in an embodiment of the present invention, showing the punch head retracting to the wire baffle plate; Figure 11 This is a step diagram of the wire harness shielding wire cutting method in an embodiment of the present invention.

[0019] Reference numerals: 1. Frame; 11. Displacement stage; 12. Cable inlet; 12a. Guide port; 13. Wire baffle; 13a. Through hole; 2. Wire extrusion mechanism; 21. Extrusion knife; 21a. Limiting groove; 21b. Limiting strip; 22. Drive assembly; 3. Wire stamping mechanism; 31. Stamping head; 4. Positioning mechanism; 41. Gripper; 41a. Arc-shaped positioning part; 41b. Pick-up part. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 10 The wire harness shielding wire cutting device shown includes: Rack 1, such as Figure 1 , Figure 2As shown, a displacement stage 11 is slidably mounted on the frame 1. The displacement stage 11 can be relatively close to or away from the processing position, and the end of the displacement stage 11 facing the processing position has a wire inlet 12. It should be noted that the displacement stage 11 can be slidably mounted on the frame 1 in many ways, such as by a linear guide rail, a rolling bearing, or other slidable connection methods. Specifically, in this invention, when cutting the shielding wire of the wire harness, the displacement stage 11 is brought close to the wire harness, allowing the wire harness to enter the device for cutting.

[0024] Extrusion shielding wire mechanism 2, such as Figures 5 to 7 As shown, a pressing blade 21, positioned on the side of the inlet 12 away from the processing position, includes at least three interlocking pressing blades 21 that press circumferentially towards the wire harness. It should be noted that the pressing blades 21 can be driven in various ways, including hydraulically, electrically, or in other structural forms. It should also be noted that the number of pressing blades 21 can be appropriately increased; the more pressing blades 21 there are, the closer the shape formed by pressing circumferentially towards the wire harness will be to a circle. Specifically, the shielding wire to be cut is wrapped around the outside of the wire harness. To separate the shielding wire from the wire harness and facilitate subsequent cutting of the shielding wire, the pressing blades 21 press circumferentially inwards from the wire harness. The pressing force causes the shielding wire to be cut to bulge outwards.

[0025] Stamping shielding wire mechanism 3, such as Figure 5 , Figure 9 As shown, the shielding wire extrusion mechanism 2 is located on the side away from the inlet 12, and includes a punching head 31 that can be relatively close to or away from the inlet 12. The punching head 31 has a conduit for accommodating the wire harness. The punching head 31 and the inlet 12 punch and cut the shielding wire. After being extruded by the extrusion blade 21, the shielding wire on the wire harness bursts. The punching head 31 punches towards the inlet 12, and the force between the two cuts the shielding wire. The conduit space is used to accommodate the wire harness, thereby ensuring the integrity of the wire harness.

[0026] Positioning mechanism 4, such as Figure 2 , Figure 3 As shown, a clamping mechanism 4 is positioned between the wire inlet 12 and the processing station, comprising two grippers 41 that converge in opposite directions towards the wire harness. When the grippers 41 are closed, they are at the same height as the wire inlet 12. When the wire harness enters the device, its weight may cause displacement at the end of the harness, potentially leading to deviation as it enters the wire inlet 12. To ensure more precise entry of the wire harness, the grippers 41 of the positioning mechanism 4 lift the wire harness, bringing it to the same height as the wire inlet 12.

[0027] This invention utilizes a sliding displacement stage 11, allowing for precise adjustment of the stage relative to the processing position. This ensures the wire harness enters the processing area while maintaining its stability. The shielding wire extrusion mechanism 2, located on the other side of the inlet 12, employs at least three interlocking extrusion blades 21 to extrude the shielding wire circumferentially from the wire harness. This evenly distributes pressure, preventing damage to the wire harness insulation layer or conductors. Compared to traditional cutting methods, this approach reduces damage to the wire harness layer during mechanical cutting while ensuring the integrity of the shielding wire. The shielding wire stamping mechanism 3 improves cutting accuracy. Through a stamping head 31 that can move relatively close or away from the inlet 12, it precisely stamps and cuts the shielding wire, avoiding the wire residue and uneven cutting problems common in traditional mechanical cutting. The positioning mechanism 4, through the reverse closing of two grippers 41, achieves precise positioning of the wire harness, ensuring it maintains an appropriate height between the inlet 12 and the processing position. This avoids misalignment during cutting and results in more accurate cutting. This invention improves production efficiency and reduces scrap rates.

[0028] During wire harness cutting, the wire harness insertion and processing require highly precise alignment to ensure the effectiveness of the cutting process and avoid wire harness damage. The wire harness may shift or bend before entering the processing station, affecting the cutting accuracy and quality, and even leading to miscutting or damage. Figure 4 As shown, the inlet 12, facing away from the processing position, also has a guide port 12a. The purpose of the guide port 12a, facing away from the processing position, is to ensure that the wire harness maintains a stable and consistent direction and position before entering the processing position. By providing a clear guide path, the wire harness can smoothly enter the processing area and achieve optimal alignment with the processing position. The additional guide port 12a can significantly reduce cutting errors caused by wire harness misalignment and improve the accuracy of the cutting process. It also guides the shielding wire on the wire harness, preventing it from colliding with the outside of the inlet 12 when passing through the wire harness, thus affecting the overall passage of the wire harness.

[0029] like Figure 3 As shown, in some embodiments of the present invention, the gripper 41 includes an arc-shaped positioning part 41a and a pickup part 41b connected to the arc-shaped positioning part 41a. Using a gripper 41 including the arc-shaped positioning part 41a and the pickup part 41b allows for better adaptation to the shape and characteristics of the wire harness, thereby improving clamping stability and accuracy. The arc-shaped positioning part 41a can naturally conform to the circular or arc-shaped cross-section of the wire harness, thus providing a more uniform force distribution during clamping and significantly reducing wire harness slippage and flipping. The pickup part 41b ensures effective pickup and placement of wire harnesses of various sizes and materials, maintaining a stable clamping effect.

[0030] Specifically, to prevent the wire harness from sagging at the ends, the arc of the arc-shaped positioning part 41a is set to not exceed 2π / 3 rad. That is, after the two grippers 41 are closed, the space enclosed by the arc-shaped positioning parts 41a on both sides forms an approximately circular hole for the wire harness to pass through. At the same time, the inner surface of the arc-shaped positioning part 41a can form a covering and clamping effect on the outer wall of the wire harness from both sides, increasing the area of ​​action of the grippers 41 on the wire harness, thereby improving the stability of the clamping effect. Meanwhile, the pickup part 41b is set as a strip, and the connection direction with the arc-shaped positioning part 41a is along the tangent direction of the arc-shaped positioning part and away from it. The end of the arc-shaped positioning part 41a gradually tapers to form a pointed tip. When the picking part 41b in the gripper 41 passes under the wire harness and picks it up from bottom to top, the picking part 41b with the pointed tip can accurately insert into the gap between the selected wire harness and other components or wire harnesses. As the gripper rotates, it controls the two picking parts 41b to merge, gradually gathering the wire harness along the strip-shaped picking part into the space enclosed by the intersection of the two arc-shaped positioning parts 41a. Finally, the wire harness is positioned at the arc-shaped positioning part 41a, thereby accurately forming a clamping and fixing effect on the end of the wire harness and preventing the end of the wire harness from shifting position during the wire cutting process.

[0031] like Figure 6 , Figure 7 As shown, at the meshing point of two adjacent extrusion blades 21, one side has a limiting groove 21a, and the other side has a limiting strip 21b extending into the limiting groove 21a. The limiting strip 21b can slide relative to each other within the limiting groove 21a. The surface of the limiting strip 21b has a raised pointed structure, which faces the shielding wire. The combination of the limiting groove 21a and the limiting strip 21b ensures precise position adjustment and stable movement of the extrusion blades 21 during the meshing process. The raised pointed structure acts specifically on the shielding wire by concentrating pressure points, making it easier to unfold and cut. This not only improves the adjustment accuracy of the extrusion blades 21 but also enhances the cutting effect.

[0032] To ensure that the extrusion blade 21 applies synchronous force to the circumferential direction of the wire harness during the extrusion process, such as... Figure 7As shown, the shielding wire extrusion mechanism 2 also includes a drive assembly 22 that drives the extrusion blades 21 to move closer or further apart. The drive assembly 22 synchronously drives the extrusion blades 21 to move closer or further apart. It should be noted that the drive assembly 22 can take many forms, including mechanical, electric, servo motor, or pneumatic drives, allowing all extrusion blades 21 to be precisely controlled to move simultaneously. Synchronous drive ensures uniform force on the shielding wire during each extrusion process, improving cutting accuracy and effectively reducing the possibility of wire harness damage. This enhances the automation level and efficiency of production, reduces human error and operational complexity, ensures consistency in the wire harness shielding wire extrusion process, and allows for rapid adjustment of extrusion pressure and position to adapt to different wire harness specifications, flexibly responding to changes in production needs.

[0033] After the shielding wire is stamped by the stamping head 31, some shielding wire may remain on the stamping head 31. If this residue is not removed in time, it may affect the subsequent cutting accuracy, increase the workload of machine cleaning and downtime, and thus affect production efficiency. Figures 5 to 7 As shown, the displacement stage 11 also has a wire baffle plate 13 with a through hole 13a. When the punch head 31 approaches the wire inlet 12, it passes through the through hole 13a; when the punch head 31 moves away from the wire inlet 12, it leaves the through hole 13a. The passage of the punch head 31 through the through hole 13a blocks any residual shielding wire from the outside of the punch head 31. When the punch head 31 approaches the wire inlet 12 and passes through the through hole 13a, the wire baffle plate 13 effectively removes any residual shielding wire from the outside of the punch head 31, keeping the punch head 31 clean. The through hole 13a acts as a barrier, enabling automatic cleaning of the punch head 31 at the end of the punching process without additional manual intervention or complex cleaning devices, simplifying the operation.

[0034] During the shielding wire cutting process, the punch head 31 needs to frequently and smoothly pass through the through hole 13a. If the dimensions between the through hole 13a and the punch head 31 are not properly matched, the punch head 31 may experience additional friction or jamming during movement, which not only affects cutting efficiency. (Reference) Figure 9 As shown, the diameter of the through hole 13a is larger than the diameter of the stamping head 31, which can provide enough space for the stamping head 31 to pass through smoothly. The through hole 13a can reduce the frictional resistance of the stamping head 31 when it passes through, ensuring that it moves without interference during high-speed operation. The size matching can greatly reduce mechanical wear caused by friction, improve the durability of the equipment and the smoothness of operation.

[0035] like Figure 8 , Figure 10As shown, the end of the punching head 31 is circular, and the punching head 31 is rotatably mounted on the displacement table 11 with the center of the circle as the center. The circular end gives the punching head 31 excellent rotatability, allowing it to rotate and adjust around the center, easily adapting to different cutting angles and position requirements. It also allows the punching head 31 to automatically adjust its posture during the cutting process, avoiding incomplete cutting caused by a fixed position. Specifically, after the punching head 31 punches the shielding wire at the inlet 12, the punching head 31 is rotated so that the punching head 31 and the inlet 12 cut the shielding wire again, avoiding incomplete cutting in a single punching operation.

[0036] In some embodiments of the present invention, the wire inlet 12, the stamping head 31, and the wire baffle 13 are sized to be interchangeable. The interchangeability of each component can be quickly adjusted and replaced according to specific wire harness specifications, materials, or production needs. Interchangeable parts not only support rapid adjustment of the production line, but also reduce dependence on equipment of a single specification, expanding the production range and market responsiveness.

[0037] According to a second aspect of the present invention, a method for cutting wire harness shielding wire is also provided, such as... Figure 11 As shown, the steps include: S10: The displacement table 11 moves closer to the machining position and uses the positioning mechanism 4 to pick up the wire harness so that the wire harness is at the same height as the wire inlet 12. S20: After positioning, the wire harness passes through the inlet 12 and enters the extrusion shielding wire mechanism 2. The extrusion knife 21 extrudes the wire harness circumferentially, causing the shielding wire to burst open. S30: The stamping shielding wire mechanism 3 moves toward the inlet 12, the wire harness enters the pipe, the shielding wire is located outside the stamping head 31, and the stamping head 31 cuts the shielding wire under the stamping action of the inlet 12. S40: The stamping mechanism returns to its initial position, the wire harness is removed, and the cutting is completed.

[0038] The displacement table 11 moves towards the processing position to ensure precise alignment of the wire harness with the inlet 12. The positioning mechanism 4 picks up the wire harness to ensure it is at the same height as the inlet 12, reducing cutting errors caused by positional deviations and laying a good foundation for subsequent processing. The positioned wire harness passes through the inlet 12 into the shielding wire extrusion mechanism 2, where it is circumferentially extruded using the extrusion blade 21, causing the shielding wire to unfold evenly. Precise control of the extrusion force and position ensures the shielding wire unfolds without damage. The shielding wire stamping mechanism 3 moves towards the inlet 12, and the wire harness enters the channel of the stamping head 31. Under the combined action of the stamping head 31 and the inlet 12, the shielding wire is precisely cut, ensuring the stability and efficiency of the cutting process. The cut line is neat, reducing the problem of residual shielding wire and improving cutting quality and wire harness performance. The stamping mechanism returns to its initial position, the wire harness exits from the processing position, the entire cutting process is completed, the initial state is restored, and preparation for the next cycle is made, significantly improving production cycle time and efficiency.

[0039] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A harness shield wire cutting device characterized by comprising: The utility model relates to a wire harness shielding wire cutting device, comprising: a rack, a displacement table is arranged on the rack and can be relatively close to or away from the processing position, one end of the displacement table towards the processing position has a wire inlet; an extrusion shielding wire mechanism is arranged on the side of the wire inlet away from the processing position and comprises at least three extrusion knives that are mutually engaged and extrude towards the wire harness in the circumferential direction; a punching shielding wire mechanism is arranged on the side of the extrusion shielding wire mechanism away from the wire inlet and comprises a punching head that can be relatively close to or away from the wire inlet, the punching head has a pipe for accommodating the wire harness, and the punching head cuts the shielding wire with the wire inlet; a positioning mechanism is arranged between the wire inlet and the processing position and comprises two clamping jaws that are oppositely folded towards the wire harness, and the clamping jaws have the same height as the wire inlet when the clamping jaws are folded.

2. The wire harness shielding wire cutting apparatus according to claim 1, wherein The wire inlet also has a guide opening towards the processing position.

3. The wire harness shielding wire cutting apparatus according to claim 1, wherein The clamping jaws comprise a circular arc positioning part and a pickup part connected to the circular arc positioning part.

4. The wire harness shielding wire cutting apparatus according to claim 1, wherein The engagement part of two adjacent extrusion knives has a limiting groove on one side and a limiting strip that extends into the limiting groove on the other side, the limiting strip can be relatively slidably arranged in the limiting groove, the surface of the limiting strip is a protruding pointed structure, and the protruding pointed structure is towards the shielding wire.

5. The wire harness shield wire cutting apparatus of claim 4, wherein, The extrusion shielding wire mechanism further comprises a driving assembly that drives the extrusion knives to be relatively close to or away from each other, and the driving assembly synchronously drives the extrusion knives to be relatively close to or away from each other.

6. The wire harness shielding wire cutting apparatus according to claim 1, wherein The displacement table further has a wire blocking plate, the wire blocking plate has a through hole, the punching head passes through the through hole when the punching head is close to the wire inlet, and the punching head leaves the through hole when the punching head is away from the wire inlet.

7. The wire harness shield wire cutting apparatus of claim 6, wherein, The diameter of the through hole is greater than the diameter of the punching head.

8. The wire harness shield wire cutting apparatus of claim 7, wherein, The end of the punching head is circular, and the punching head is rotationally arranged on the displacement table with the center of the circle as the center.

9. The wire harness shield wire cutting apparatus of claim 8, wherein, The wire inlet, the punching head and the wire blocking plate are appropriately sized and are replaceable parts.

10. A harness shield wire cutting method characterized by, The wire harness shielding wire cutting device according to any one of claims 1 to 9 is used, comprising the following steps: The displacement table is close to the processing position, the positioning mechanism picks up the wire harness, and the wire harness has the same height as the wire inlet; The positioned wire harness passes through the wire inlet into the extrusion shielding wire mechanism, the wire harness is extruded in the circumferential direction by the extrusion knives, and the shielding wire is blown open; The punching shielding wire mechanism is displaced towards the wire inlet, the wire harness enters the pipe, the shielding wire is located outside the punching head, and the punching head cuts the shielding wire under the punching action of the wire inlet; The punching mechanism returns to the initial position, the wire harness moves out, and the cutting is completed.

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