Concentric circle wire harness end lossless peeling device and technology and wire harness thereof

Abstract

The invention discloses a concentric circle wire harness end lossless peeling device and technology and a wire harness thereof. The concentric circle wire harness end lossless peeling device comprises a concentric wire harness penetrating cylinder, and the rear end of the concentric wire harness penetrating cylinder is coaxially and integrally provided with a wire harness guiding conical ring wall in a conical ring horn shape; the front end of the concentric wire harness penetrating cylinder is coaxially and integrally connected with a conical-ring-shaped fixed cutter, and the front end of the conical-ring-shaped fixed cutter is a circle of cutter sharp end. A concentric wire harness is guided by the wire harness guiding conical ring wall to coaxially and forwards pass through a wire harness passing channel in an integrated structure formed by the concentric wire harness passing cylinder and the conical ring-shaped fixed cutter. A fixed disc is coaxially arranged in front of the conical ring-shaped fixed cutter; the fixed disc and the concentric wire harness penetrating cylinder are fixed on the fixed bracket; the cone thin end of the cone-ring-shaped floating knife rest and the cone thin end of the cone-shaped wire core shuttling channel both face one side of the cone-ring-shaped fixed cutter. And the problem that the wire core is damaged in the traditional ring cutting process is avoided.

Description

Technical Field

[0001] This invention relates to a non-destructive stripping device for the ends of a concentric circular wire harness and the wire harness itself. Background Technology

[0002] In the processing of high-precision concentric wire harnesses, such as coaxial cables, end stripping is a critical process. Current technology commonly uses a circumferential cutting method for stripping, which involves using a ring-shaped blade to make a circumferential cut on the wire harness's outer sheath, followed by manual or mechanical removal. This method has several inherent drawbacks:

[0003] High risk of damaging the wire core: The depth of the circumferential cut is difficult to control precisely. If the cut is too shallow, the outer sheath may not be able to be peeled off smoothly, requiring secondary processing and reducing efficiency; if the cut is too deep, it is very easy to cut or scratch the internal wire core, resulting in a decrease in signal transmission quality or direct scrapping of the wire harness, which is costly for precision and expensive cables.

[0004] Complex structure and low efficiency: Traditional automated peeling devices usually contain multiple drivers and complex control logic to ensure the circumcision depth, resulting in complex structure and high manufacturing and maintenance costs.

[0005] Therefore, there is an urgent need in this field for a non-destructive stripping technology and device that can avoid damaging the wire core, has a simple and reliable structure, and is highly efficient. Summary of the Invention

[0006] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a non-destructive stripping device and process for concentric circle wire harness ends and the wire harness thereof, avoiding the problem of damage to the wire core in the traditional "circumferential cutting" process.

[0007] Technical solution: To achieve the above objective, the present invention provides a non-destructive stripping device for the end of a concentric wire harness, comprising a concentric wire harness passing cylinder, wherein a conical ring-shaped wire harness guiding conical ring wall is integrally provided coaxially at the rear end of the concentric wire harness passing cylinder; a conical ring-shaped fixed cutter is integrally connected coaxially at the front end of the concentric wire harness passing cylinder, wherein the front end of the conical ring-shaped fixed cutter is a ring of sharp cutting edges.

[0008] Guided by the wire harness guide cone ring wall, the concentric wire harness passes coaxially forward through the wire harness passage channel within the integrated structure formed by the concentric wire harness passage cylinder and the cone ring fixed cutter;

[0009] A fixed plate is coaxially arranged in front of the conical ring-shaped fixed cutter. The fixed plate and the concentric wire harness are both fixed on the fixed bracket after passing through the tube.

[0010] A conical floating cutter holder is coaxially arranged between the fixed plate and the conical fixed cutter. Inside the conical floating cutter holder is a coaxial conical wire core shuttle channel. The conical floating cutter holder and the conical wire core shuttle channel both have their conical ends facing the conical fixed cutter.

[0011] Furthermore, a floating cylinder is integrally connected coaxially to the side of the conical ring floating cutter away from the conical ring fixed cutter. Several guide rods parallel to the axial direction are integrally provided on the side of the floating cylinder away from the conical ring floating cutter, and each guide rod moves through the guide hole on the fixed plate.

[0012] Furthermore, a reset tension spring is coaxially installed inside the floating cylinder. The two ends of the reset tension spring are fixedly connected to the fixed disk and the thick end of the cone-shaped floating tool holder, respectively. The reset tension spring applies a forward pulling force to the cone-shaped floating tool holder, thereby limiting the front end of the floating cylinder to the rear side of the fixed disk in the initial state.

[0013] Furthermore, the taper of the inner wall of the conical wire core shuttle channel is smaller than the taper of the outer conical surface of the conical ring floating cutter holder; thus, a sharp ring-shaped guide blade is formed at the end of the conical ring floating cutter holder near the conical ring fixed cutter.

[0014] Furthermore, the concentric wire harness includes at least a concentric outer sheath and a wire core; from the axial perspective of the concentric wire harness, a circular dividing seam is formed between the concentric outer sheath and the wire core; the diameter of the circular dividing seam is consistent with the diameter of the annular guide blade.

[0015] Furthermore, in the initial state, an initial gap is formed between the annular guide blade and the sharp end of the cutter.

[0016] Furthermore, the outer conical surface of the conical floating tool holder, near the annular guide blade, is arranged in a circumferential array with several cutting blades extending along the generatrix direction; the cutting edge of each cutting blade is close to the side of the conical fixed cutting blade; a conical ring sleeve is coaxially arranged on the outer periphery of the conical floating tool holder, and an annular diverging outer skin shuttle channel is formed between the conical ring sleeve and the outer conical surface of the conical floating tool holder; a floating ring is integrally connected to the thick end of the conical ring sleeve; several expansion joints are fixedly arranged on the outer wall of the floating cylinder along the direction parallel to the axis, and the end of the expansion rod of each expansion joint is fixedly connected to the floating ring.

[0017] Furthermore, the conical ring-shaped fixed cutter has several slits arranged in a circumferential array along the generatrix of the cone. Each slit corresponds to a cutting blade, and the cutting blade can be moved backward to cut into the corresponding slit.

[0018] Step 1: Pass the concentric wire harness forward through the wire harness passage channel within the integrated structure formed by the concentric wire harness passage tube and the conical ring-shaped fixed cutter until the circular dividing seam at the end of the concentric wire harness contacts the ring-shaped guide blade.

[0019] Step two: The concentric wire harness is advanced forward. The annular guide blade at the front end of the conical floating blade holder further penetrates the circular dividing seam at the end of the concentric wire harness. As the concentric wire harness continues to advance, several cutting blades arranged in a circumferential array on the outer conical surface gradually cut the concentric outer sheath at the end of the concentric wire harness backward, causing the cut concentric outer sheath at the end of the concentric wire harness to gradually split into several outer sheath strips arranged in a circumferential array. As the concentric wire harness continues to advance, the outer sheath strips arranged in a circumferential array diverge and shuttle through the divergent outer sheath shuttle channel under the guidance of the outer conical surface. At the same time, the wire core at the end of the concentric wire harness gradually shuttles forward into the conical wire core shuttle channel. The wire core that shuttles into the conical wire core shuttle channel is recorded as the exposed wire core section. When the length of the exposed wire core section reaches the preset length, the process is paused, and the wire harness advancing device or robot arm is activated.

[0020] Step 3: The telescopic device drives the cone ring sleeve to float forward along the axial direction, thereby gradually narrowing the diverging outer skin shuttle channel until the outer skin strips that have been diverging through the diverging outer skin shuttle channel are tightly clamped between the cone ring sleeve and the outer cone surface. At this time, the roots of each outer skin strip are still connected to the intact concentric outer skin of the concentric wire harness, waiting to be cut.

[0021] Step four: The wire harness pushing device or robot pulls the concentric wire harness backward. The backward pulling force on the concentric wire harness is transmitted through several outer strips distributed in a divergent manner to the combined structure formed by the conical ring sleeve and the conical ring floating blade holder. This causes the combined structure formed by the conical ring sleeve and the conical ring floating blade holder to overcome the reset tension spring and move backward along with the concentric wire harness and the relatively fixed conical ring fixed cutter. The initial gap gradually decreases to zero, and the fixed plate and the floating cylinder gradually form a separation gap. Under the force of the gradually stretched reset tension spring, the tension at the root of the several outer strips distributed in a divergent manner gradually increases.

[0022] As the combined structure of the conical ring sleeve and the conical floating blade holder moves backward along with the concentric wire harness and the relatively fixed conical ring cutter, the initial gap gradually decreases to zero. Finally, the sharp edge of the last ring cutter cuts the root of the several outer strips that are distributed in a divergent manner. After the root of the several outer strips is cut, the wire harness pushing device or robot smoothly pulls the concentric wire harness backward and through the channel.

[0023] At the same time, after the roots of the several outer strips distributed in a divergent pattern are cut off, the tension transmitted to the combined structure formed by the conical ring sleeve and the conical ring floating knife holder is automatically disconnected and disappears, and the floating cylinder returns to its initial position under the reset pull of the reset pull spring.

[0024] Step 5: Control the telescopic rod to extend again, so that the cone ring sleeve returns to its initial position, the divergent outer skin shuttle channel widens again, and the several outer skin strips that were cut and distributed in a divergent manner automatically fall down into the waste recycling bin below under the action of gravity or external vibration device, thus completing one work cycle.

[0025] Beneficial effects: This invention addresses the shortcomings of existing technologies by proposing a novel non-destructive peeling concept and device structure, the core innovations of which are as follows:

[0026] The "piercing-splitting" non-circumferential cutting mechanism abandons the traditional circumferential cutting method and innovatively uses a ring-shaped guide blade to precisely pierce the circular dividing seam between the concentric outer sheath and the core. Then, the outer sheath is longitudinally split into several "flowering" strips by a circumferential array of cutting blades. This mechanism fundamentally eliminates the possibility of the circumferential cutting blade contacting and damaging the core, achieving truly "non-destructive" stripping.

[0027] The divergent outer sheath treatment and coordinated pulling-cutting structure: A divergent outer sheath shuttle channel, formed by a conical floating blade holder and a conical ring sleeve, guides and controls the cut outer sheath strip into a divergent shape. Then, a telescopic mechanism drives the conical ring sleeve to clamp the outer sheath strip. When the wire harness is pulled back, firstly, by pulling the harness backward, the gradually increasing tension of the return tension spring and the clamping force of the conical ring sleeve taut the root of the divergent outer sheath strip. Subsequently, the continued movement of the system causes a relative displacement between the fixed sharp blade and the taut outer sheath, thereby cutting off the root of the outer sheath strip. This mechanism ensures smooth and controllable cutting, avoiding the risks of traditional circumferential cutting that directly affects the periphery of the wire core.

[0028] At the moment the outer skin is cut, the conical floating blade holder continues to move backward a short distance due to inertia, ensuring that the cutting blade on it precisely cuts into the kerf of the conical fixed blade. This ingenious design prevents the cutting blade from colliding perpendicularly with the sharp end of the fixed blade during the resetting process, effectively protecting the cutting edge and significantly extending the tool's lifespan.

[0029] Integrated automated cycle design: The entire device integrates guiding, insertion, cutting, clamping, severing, resetting, and waste cleaning. A series of continuous mechanical actions are triggered by the advancement and retraction of the wire harness, eliminating the need for complex independent drives and controls. The wire harness guide cone ring wall ensures automatic alignment of the wire harness, and the entire work cycle can be completed automatically within seconds, greatly improving the efficiency and consistency of stripping, making it highly suitable for integration into automated production lines. Attached Figure Description

[0030] Fig. 1 A schematic diagram of the complete process of non-destructive wire harness cutting;

[0031] Fig. 2 This is a schematic diagram of the overall structure of the non-destructive skin cutting device in this solution;

[0032] Fig. 3 This is a cross-sectional view of the structure from the "initial state" to "step two";

[0033] Fig. 4 This is a structural diagram showing the progression from "Step Two" to "Step Four";

[0034] Fig. 5 This is a three-dimensional sectional view from the "initial state" to "step two". Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] As attached Figs. 1 to 5 The device shown is a non-destructive stripping device for concentric wire harness ends, comprising a concentric wire harness passing cylinder 15 with an inner diameter matching the outer diameter of the concentric wire harness 3. The concentric wire harness passing cylinder 15 is made of hard stainless steel, and its inner diameter precisely matches the outer diameter of the concentric wire harness 3, with a tolerance controlled within ±0.1mm, to ensure that the concentric wire harness 3 can pass through smoothly without shaking. A conical, horn-shaped wire harness guiding conical ring wall 25 is integrally formed on the rear end of the concentric wire harness passing cylinder 15; the cone angle of the wire harness guiding conical ring wall 25 is 30° to 45° to optimize the guiding effect and reduce resistance during wire harness insertion.

[0037] The concentric wire harness passes through the front end of the tube 15 and is coaxially connected to a conical ring-shaped fixed cutter 13. The conical ring-shaped fixed cutter 13 is made of high carbon steel and has a heat treatment hardness of HRC60 or higher to ensure the long-lasting sharpness of the cutter's sharp end 12. The front end of the conical ring-shaped fixed cutter 13 is a ring of cutter sharp ends 12.

[0038] Guided by the wire harness guide cone ring wall 25, the concentric wire harness 3 passes coaxially forward through the wire harness passage channel 14 within the integrated structure formed by the concentric wire harness passage cylinder 15 and the cone-shaped fixed cutter 13; a fixed plate 16 is coaxially arranged in front of the cone-shaped fixed cutter 13, and both the fixed plate 16 and the concentric wire harness passage cylinder 15 are fixed on the fixed bracket 18; a cone-shaped floating cutter holder 20 is coaxially arranged between the fixed plate 16 and the cone-shaped fixed cutter 13, and the cone-shaped floating cutter holder 20 contains a coaxial cone-shaped wire core shuttle channel 19, with the conical thin ends of the cone-shaped floating cutter holder 20 and the cone-shaped wire core shuttle channel 19 both facing the cone-shaped fixed cutter 13.

[0039] A floating cylinder 6 is integrally connected coaxially to the side of the conical floating blade holder 20 away from the conical fixed blade 13. Several guide rods 5 are integrally provided on the side of the floating cylinder 6 away from the conical floating blade holder 20, parallel to the axial direction. Each guide rod 5 moves through the guide hole on the fixed plate 16. A reset tension spring 17 is integrally provided coaxially inside the floating cylinder 6. The two ends of the reset tension spring 17 are fixedly connected to the fixed plate 16 and the thick end of the cone of the conical floating blade holder 20, respectively. The reset tension spring 17 applies a forward pulling force to the conical floating blade holder 20, so that the front end of the floating cylinder 6 is limited to abutting the rear side of the fixed plate 16 in the initial state.

[0040] The taper of the inner wall of the conical wire core shuttle channel 19 is smaller than the taper of the outer conical surface 9 of the conical annular floating cutter holder 20; thus, a sharp annular guide blade 21 is formed at the end of the conical annular floating cutter holder 20 near the conical annular fixed cutter 13; the taper of the outer conical surface 9 of the conical annular floating cutter holder 20 is 15° to 25°, while the taper of the inner wall of the conical wire core shuttle channel 19 is 10° to 20°. This difference in taper ensures the sharpness and guiding effect of the annular guide blade 21.

[0041] In the initial state, an initial distance 51 is formed between the annular guide blade 21 and the sharp end 12 of the cutter; the outer conical surface 9 of the conical floating cutter holder 20 near the annular guide blade 21 is provided with a number of cutting blades 23 extending along the generatrix direction in a circumferential array; the cutting edge of each cutting blade 23 is close to the side of the conical fixed cutter 13.

[0042] A conical ring sleeve 11 is coaxially arranged on the outer periphery of the conical ring floating tool holder 20, and a ring-shaped diverging outer skin shuttle channel 22 is formed between the conical ring sleeve 11 and the outer conical surface 9 of the conical ring floating tool holder 20; a floating ring 10 is integrally connected to the thick end of the conical ring sleeve 11 coaxially; a number of expansion joints 7 are fixedly arranged on the outer wall of the floating cylinder 6 in a direction parallel to the axis, and the end of the expansion rod 8 of each expansion joint 7 is fixedly connected to the floating ring 10; under the drive of the expansion joints 7, the conical ring sleeve 11 floats in the axial direction.

[0043] The inner wall taper of the conical ring sleeve 11 is consistent with the taper of the outer conical surface 9 of the conical ring floating tool holder 20. The concentric wire bundle 3 includes at least a concentric outer sheath 1 and a wire core 2; from the axial perspective of the concentric wire bundle 3, a circular dividing seam 4 is formed between the concentric outer sheath 1 and the wire core 2; the diameter of the circular dividing seam 4 is consistent with the diameter of the annular guide blade 21; to ensure precise insertion into the dividing seam.

[0044] The conical ring-shaped fixed cutter 13 has several slits 24 arranged in a circumferential array along the generatrix of the cone. Each slit 24 corresponds to a cutting blade 23. The cutting blade 23 can be moved backward to cut into the corresponding slit 24. The width of the slit 24 is slightly larger than the thickness of the cutting blade 23, usually 0.5 mm to 1 mm, to avoid interference and ensure that the cutting blade 23 can cut in smoothly.

[0045] The working principle of this device is based on a precise understanding of the concentric wire harness structure. Through the synergistic action of guiding, splitting, clamping, and pulling, it achieves non-destructive stripping of the outer sheath. The key lies in using the annular guide blade 21 to precisely pierce the circular dividing seam 4, avoiding direct contact with the wire core. The circumferential array design of the cutting blades 23 ensures that the outer sheath is uniformly cut, forming a divergent outer sheath strip 1a. This results in a uniform stress distribution during pulling, preventing localized stress concentration that could damage the wire core. The specific process is as follows:

[0046] Initial state: In the initial state, the front end of the floating cylinder 6 is positioned against the rear side of the fixed plate 16; an initial distance 51 is formed between the annular guide blade 21 and the sharp end of the cutter 12.

[0047] Step 1: Under the action of the wire harness propulsion device or the robot arm, the concentric wire harness 3 is guided concentrically forward through the wire harness passage channel 14 within the integrated structure formed by the concentric wire harness passage cylinder 15 and the conical ring-shaped fixed cutter 13, until the circular dividing seam 4 at the end of the concentric wire harness 3 contacts the ring-shaped guide blade 21. In this step, the cone angle design of the wire harness guide cone ring wall 25 ensures automatic alignment of the wire harness and reduces the risk of skewing.

[0048] Step two: The wire harness advancing device or robotic arm continues to advance the concentric wire harness 3 forward. The annular guide blade 21 at the front end of the conical floating blade holder 20 further penetrates the circular dividing seam 4 at the end of the concentric wire harness 3. As the concentric wire harness 3 continues to advance forward, several cutting blades 23 arranged in a circumferential array on the outer conical surface 9 gradually cut the concentric outer sheath 1 at the end of the concentric wire harness 3 backward, causing the cut concentric outer sheath 1 at the end of the concentric wire harness 3 to gradually split into several outer sheath strips 1a arranged in a circumferential array in a "flowering" shape. As the concentric wire harness 3 continues to advance... The outer sheath strips 1a, arranged in a circular array, are guided by the outer conical surface 9 to diverge through the diverging outer sheath shuttle channel 22. At the same time, the wire cores 2 at the ends of the concentric wire harness 3 gradually move forward into the conical wire core shuttle channel 19. The wire cores 2 that move into the conical wire core shuttle channel 19 are referred to as the exposed wire core section 2a. The process is paused when the length of the exposed wire core section 2a reaches a preset length, and the wire harness propulsion device or robot arm is used. The preset length is controlled by the stroke of the propulsion device and is usually 5mm to 15mm to meet different wiring requirements.

[0049] Step 3: The telescopic device 7 drives the conical ring sleeve 11 to float forward along the axial direction, thereby gradually narrowing the diverging outer skin shuttle channel 22 until the outer skin strips 1a that have been passing through the diverging outer skin shuttle channel 22 are tightly clamped between the conical ring sleeve 11 and the outer conical surface 9. At this time, the root of each outer skin strip 1a is still connected to the intact concentric outer skin 1 of the concentric wire harness 3, waiting to be cut.

[0050] Step four: The wire harness propulsion device or robot pulls the concentric wire harness 3 backward. The backward pulling force on the concentric wire harness 3 is transmitted through the several outer strips 1a distributed in a divergent manner to the combined structure formed by the conical ring sleeve 11 and the conical ring floating blade holder 20. As a result, the combined structure formed by the conical ring sleeve 11 and the conical ring floating blade holder 20 overcomes the reset tension spring 17 and moves backward along with the concentric wire harness 3, which is gradually fixed relative to the conical ring fixed cutter 13. The initial gap 51 gradually decreases to zero, and the fixed plate 16 and the floating cylinder 6 gradually form a separation gap 28. Under the force of the gradually stretched reset tension spring 17, the tension at the root of the several outer strips 1a distributed in a divergent manner gradually increases. This tension has a significant promoting effect on the subsequent smooth cutting.

[0051] As the combined structure formed by the conical ring sleeve 11 and the conical ring floating blade holder 20 moves backward along with the concentric wire harness 3 and the relatively fixed conical ring fixed cutter 13, the initial spacing 51 gradually decreases to zero. At this point, the sharp end 12 of the cutting blade at the front of the conical ring fixed cutter 13 just cuts off the roots of the several outer strips 1a that are distributed in a divergent manner. After the roots of the several outer strips 1a that are distributed in a divergent manner are cut off, the wire harness pushing device or the robot smoothly pulls the concentric wire harness 3 backward and the wire harness passes through the channel 14.

[0052] At the same time, after the roots of the several outer strips 1a distributed in a divergent manner are cut off, the tension transmitted to the combined structure formed by the conical ring sleeve 11 and the conical ring floating knife holder 20 is automatically disconnected and disappears, and the floating cylinder 6 returns to its initial position under the reset pull of the reset pull spring 17.

[0053] In the instant after the roots of the several outer strips 1a distributed in a divergent manner are cut, due to inertia, the conical floating blade holder 20 will continue to move backward a short distance before returning to its initial position under the return pull of the return pull spring 17. During the process of the conical floating blade holder 20 continuing to move backward a short distance, each cutting blade 23 on the conical floating blade holder 20 will move backward to cut into each slit 24 at the front end of the conical fixed cutter 13, thereby avoiding the problem of each cutting blade 23 intersecting and interfering with the sharp end 12 of the ring of cutters at the front end of the conical fixed cutter 13 and being damaged.

[0054] Step 5: Control the telescopic rod 8 to extend again, so that the cone ring sleeve 11 returns to its initial position, the divergent outer skin shuttle channel 22 widens again, and the several divergent outer skin strips 1a that were cut off automatically fall down into the waste recycling bin below under the action of gravity or external vibration device, thus completing one work cycle.

[0055] The most significant feature of this solution is the elimination of the circumferential cutting process, thus avoiding the risk of damaging the wire core that occurs during traditional circumferential cutting. Compared to traditional technologies, this invention achieves efficient and non-destructive stripping through structural innovation, making it particularly suitable for high-precision wire harness processing and demonstrating significant practicality and economy.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A non-destructive stripping device for the ends of concentric circular wire harnesses, characterized in that: The concentric wire harness passing tube (15) is coaxially and integrally provided with a conical ring-shaped wire harness guiding conical ring wall (25) at the rear end of the concentric wire harness passing tube (15); the front end of the concentric wire harness passing tube (15) is coaxially and integrally connected with a conical ring-shaped fixed cutter (13), and the front end of the conical ring-shaped fixed cutter (13) is a ring of sharp cutting ends (12). The concentric wire harness (3) passes coaxially forward through the wire harness passing through the wire harness passing through the wire harness passing through the integrated structure formed by the concentric wire harness passing through the tube (15) and the conical ring fixed cutter (13) under the guidance of the wire harness guiding cone ring wall (25). A fixed plate (16) is coaxially arranged in front of the conical ring-shaped fixed cutter (13). The fixed plate (16) and the concentric wire harness pass through the tube (15) and are both fixed on the fixed bracket (18). A conical floating blade holder (20) is coaxially arranged between the fixed plate (16) and the conical fixed cutter (13). Inside the conical floating blade holder (20) is a conical wire core shuttle channel (19) coaxially. The conical floating blade holder (20) and the conical wire core shuttle channel (19) both have their conical ends facing the conical fixed cutter (13).

2. The non-destructive stripping device for the ends of a concentric circular wire harness according to claim 1, characterized in that: A floating cylinder (6) is integrally connected to the side of the conical floating blade holder (20) away from the conical fixed blade (13) on the same axis. Several guide rods (5) are integrally provided on the side of the floating cylinder (6) away from the conical floating blade holder (20) along the axial direction. Each guide rod (5) moves through the guide hole on the fixed plate (16).

3. The non-destructive stripping device for the ends of a concentric wire harness according to claim 2, characterized in that: A reset tension spring (17) is coaxially arranged inside the floating cylinder (6). The two ends of the reset tension spring (17) are respectively fixedly connected to the fixed disk (16) and the thick end of the cone of the cone-shaped floating tool holder (20). The reset tension spring (17) applies a forward pulling force to the cone-shaped floating tool holder (20), so that the front end of the floating cylinder (6) is limited to abutting the rear side of the fixed disk (16) in the initial state.

4. The non-destructive stripping device for the ends of a concentric circular wire harness according to claim 3, characterized in that: The taper of the inner wall of the conical wire core shuttle channel (19) is smaller than the taper of the outer conical surface (9) of the conical ring floating knife holder (20); thus forming a sharp ring-shaped guide blade (21) at the end of the conical ring floating knife holder (20) close to the conical ring fixed cutter (13).

5. The concentric wire harness processed by the non-destructive stripping device for the ends of a concentric wire harness according to claim 4, characterized in that: The concentric wire harness (3) includes at least a concentric outer sheath (1) and a wire core (2); from the axial perspective of the concentric wire harness (3), a circular dividing seam (4) is formed between the concentric outer sheath (1) and the wire core (2); the diameter of the circular dividing seam (4) is the same as the diameter of the annular guide blade (21).

6. The non-destructive stripping device for the ends of a concentric circular wire harness according to claim 4, characterized in that: In the initial state, an initial gap (51) is formed between the annular guide blade (21) and the sharp end of the cutter (12).

7. The non-destructive stripping device for the ends of a concentric wire harness according to claim 6, characterized in that: The outer conical surface (9) of the conical floating blade holder (20) near the annular guide blade (21) is provided with a number of cutting blades (23) extending along the generatrix direction in a circular array; the cutting edge of each cutting blade (23) is close to the side of the conical fixed blade (13); a conical ring sleeve (11) is coaxially provided on the outer periphery of the conical floating blade holder (20), and an annular divergent outer skin shuttle channel (22) is formed between the conical ring sleeve (11) and the outer conical surface (9) of the conical floating blade holder (20); a floating ring (10) is integrally connected to the thick end of the conical ring sleeve (11) coaxially; a number of telescopic devices (7) are fixedly provided on the outer wall of the floating cylinder (6) in a direction parallel to the axis, and the end of the telescopic rod (8) of each telescopic device (7) is fixedly connected to the floating ring (10).

8. The non-destructive stripping device for the ends of a concentric wire harness according to claim 7, characterized in that: The conical ring-shaped fixed cutter (13) has several slits (24) arranged in a circular array along the generatrix of the cone. Each slit (24) corresponds to a cutting blade (23), and the cutting blade (23) can be moved backward to cut into the corresponding slit (24).

9. The working method of the non-destructive stripping device for the ends of a concentric circular wire harness according to claim 7, characterized in that: Step 1: Let the concentric wire harness (3) pass forward through the wire harness passage channel (14) in the integrated structure formed by the concentric wire harness passage tube (15) and the conical ring fixed cutter (13) until the circular dividing seam (4) at the end of the concentric wire harness (3) contacts the ring guide blade (21). Step 2: The concentric wire bundle (3) is advanced forward. The annular guide blade (21) at the front end of the conical floating blade holder (20) further penetrates into the circular dividing seam (4) at the end of the concentric wire bundle (3). As the concentric wire bundle (3) continues to advance forward, several cutting blades (23) arranged in a circular array on the outer conical surface (9) gradually cut the concentric outer skin (1) at the end of the concentric wire bundle (3) backward, causing the concentric outer skin (1) at the end of the concentric wire bundle (3) to gradually split into several outer skin strips arranged in a circular array in a "flowering" shape. (1a) As the concentric wire harness (3) continues to advance, the outer strips (1a) distributed in a circular array are guided by the outer conical surface (9) to diverge through the divergent outer strip shuttle channel (22); at the same time, the wire core (2) at the end of the concentric wire harness (3) gradually moves forward into the conical wire core shuttle channel (19), and the wire core (2) that moves into the conical wire core shuttle channel (19) is recorded as the exposed section of the wire core (2a); when the length of the exposed section of the wire core (2a) reaches the preset length, the process is paused, and the wire harness advancing device or robot arm is activated. Step 3: The telescopic device (7) drives the conical ring sleeve (11) to float forward along the axial direction, thereby gradually narrowing the divergent outer skin shuttle channel (22) until the outer skin strip (1a) that has been passing through the divergent outer skin shuttle channel (22) is tightly clamped between the conical ring sleeve (11) and the outer conical surface (9). At this time, the root of each outer skin strip (1a) is still connected to the intact concentric outer skin (1) of the concentric wire harness (3) and is waiting to be cut.

10. The working method of the non-destructive stripping device for the ends of a concentric circular wire harness according to claim 9, characterized in that: Step four: The wire harness pushing device or robot pulls the concentric wire harness (3) backward. The backward pulling force on the concentric wire harness (3) is transmitted through the several outer strips (1a) distributed in a divergent manner to the combined structure formed by the conical ring sleeve (11) and the conical ring floating knife holder (20). As a result, the combined structure formed by the conical ring sleeve (11) and the conical ring floating knife holder (20) overcomes the reset tension spring (17) and moves backward along with the concentric wire harness (3) relative to the gradually fixed conical ring fixed cutter (13), so that the initial gap (51) gradually becomes smaller to zero, and the fixed plate (16) and the floating cylinder (6) gradually form a separation gap (28). Under the force of the gradually stretched reset tension spring (17), the pulling force at the root of the several outer strips (1a) distributed in a divergent manner gradually increases. As the combined structure formed by the conical ring sleeve (11) and the conical ring floating blade holder (20) moves backward along with the concentric wire harness (3) and the conical ring fixed cutter (13) gradually becomes relatively fixed, the initial spacing (51) gradually decreases to zero. Finally, the sharp edge (12) of the ring cutter at the front end of the conical ring fixed cutter (13) cuts off the roots of the several outer strips (1a) that are distributed in a divergent manner. After the roots of the several outer strips (1a) that are distributed in a divergent manner are cut off, the wire harness pushing device or the robot smoothly pulls the concentric wire harness (3) backward and the wire harness passes through the channel (14). At the same time, after the roots of the several outer strips (1a) distributed in a divergent manner are cut off, the tension transmitted to the combined structure formed by the conical ring sleeve (11) and the conical ring floating knife holder (20) automatically disconnects and disappears, and the floating cylinder (6) returns to its initial position under the reset pull of the reset pull spring (17). Step 5: Control the telescopic rod (8) to extend again, so that the cone ring sleeve (11) returns to its initial position, the divergent outer skin shuttle channel (22) widens again, and the several outer skin strips (1a) that have been cut and distributed in a divergent manner automatically fall down into the waste recycling bin below under the action of gravity or external vibration device, thus completing one work cycle.

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