Cutting device for cable processing

By combining the planetary rotating blades and the progressive unit of the ring cutting mechanism, the problems of conductor deformation and material breakage during the cutting of large cables are solved, achieving a high-quality cutting effect.

CN122425144APending Publication Date: 2026-07-21JIANGSU ANLAN-WK ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU ANLAN-WK ELECTRONICS CO LTD
Filing Date
2026-06-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, when cutting large cables, the guillotine-type shearing causes plastic deformation of the conductor and cracking or tearing of the shielding layer or sheath material, which damages the regularity of the conductor and the integrity of the material.

Method used

The ring-shaped cutting mechanism utilizes a planetary rotating blade that revolves around the cable and feeds radially. Combined with the cooperation of the advancing unit and the power unit, it avoids the squeezing of the cable cross-section by the guillotine-type cutting, reduces the cracking of the insulation layer, and ensures a smooth cut surface.

Benefits of technology

This effectively avoids cable cross-section compression, reduces damage to the insulation layer, ensures a smooth cut surface, and improves cutting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a cutting device for cable processing and relates to the technical field of cable cutting, which comprises a ring seat and a cutting mechanism, the ring seat is internally symmetrically provided with clamping mechanisms, the cutting mechanism is installed at the middle position of the ring seat, the clamping mechanisms are distributed on the two sides of the cutting mechanism, the clamping mechanisms clamp the cables to be cut, the cutting mechanism comprises an outer gear ring, a progressive unit, a tool holder and a tool disc, a driving mechanism is installed outside the ring seat, the driving mechanism is in mesh transmission with the outer gear ring, the outer gear ring is rotatably installed in the ring seat, the progressive unit is installed on the inner circular end face of the outer gear ring, the tool holder is installed on the progressive unit, the tool disc is installed on the tool holder, a cutting edge is installed on the tool disc, a power unit is installed on the tool holder, and the power unit rotates the tool disc. The planetary rotary cutting edge revolves around the cable and feeds radially, the extrusion of the cable section by the guillotine cutter is avoided, the cutting edge gradually feeds towards the center of the circle, the cracking of the insulating layer is reduced, and the flatness of the cutting section is ensured.
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Description

Technical Field

[0001] This invention relates to the field of cable cutting technology, specifically a cutting device for cable processing. Background Technology

[0002] Large industrial cables (such as high-voltage power cables and large-section rubber-sheathed cables) are widely used in modern power transmission, rail transportation, and large industrial equipment. These cables typically consist of multiple layers, including a conductor, inner shield, insulation layer, outer shield, and outer sheath. They not only have large cross-sectional dimensions but also high mechanical strength. During cable laying, connection, and assembly, they need to be cut according to length requirements.

[0003] Currently, the cutting of large cables is mainly carried out using traditional "guillotine" hydraulic shears or large fixed shearing equipment. These shearing devices typically use enormous vertical or oblique shearing forces to "guillotine" the cable by the instantaneous closing of the blade. While this cutting method is highly efficient, it still has technical drawbacks. Specifically, during cutting, the vertical shearing force exerts a compressive effect on the cable cross-section, causing irreversible plastic deformation of the conductor, changing the cross-section from circular to elliptical or even flattened, thus disrupting the conductor's regularity. Furthermore, for outer shielding and sheathing materials, this guillotine-style shearing easily causes stress concentration near the shear line, leading to cracking or tearing of the shielding or sheath. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting device for cable processing to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for cable processing, comprising a ring seat and a cutting mechanism, wherein clamping mechanisms are symmetrically installed inside the ring seat, and driving mechanisms are symmetrically installed outside the ring seat, the cutting mechanism is located inside the ring seat, and the two clamping mechanisms are distributed on both sides of the cutting mechanism; The cutting mechanism includes an external gear ring and at least two tool holders. The external gear ring is rotatably mounted on a ring seat and meshes with a drive mechanism for transmission. At least two progressive units are provided on the inner circular end face of the external gear ring. The tool holders are mounted on the progressive units. A power unit is mounted on the tool holders. An annular cutter disc is mounted on the tool holders. A stabilizing unit that supports and stabilizes the cutter disc structure is mounted on the tool holders. The outer circular end face of the cutter disc is provided with an annular cutting edge, and the inner circular end face of the cutter disc is symmetrically provided with retaining rings. An internal gear ring is provided between the two retaining rings. The stabilizing unit is in rolling contact with the inner circular end face of the retaining ring, and the power unit meshes with the internal gear ring for transmission. The clamping mechanism clamps and fixes the cable to prevent positional displacement during cutting. During the cutting process, the drive mechanism drives the outer gear ring to rotate, causing the advancing unit to drive the cutter disc to make a circular motion around the cable. The advancing unit advances the cutter disc towards the cable, so that the cutting edge makes a circular cut on the cable. During the circumferential cutting process, the power unit makes the cutter disc rotate, so that the cutter disc rotates around its own central axis, and thus the cutting edge also rotates with the cutter disc as it rotates around the cable to cut. The planetary rotating cutting edge revolves around the cable and feeds radially, avoiding the squeezing of the cable cross-section by the guillotine-type cutting. The cutting edge gradually feeds towards the center under the push of the advancing unit, thereby reducing the cracking of the insulation layer and ensuring the flatness of the cut surface.

[0006] The advancing unit includes an arc-shaped slide rail and a base plate. The slide rail is mounted on the inner circular end face of the outer gear ring. Three sliders are mounted on the slide rail, and each of the three sliders is equipped with an advancing cylinder. The two sliders on the sides are rotatably connected to the advancing cylinders. The three advancing cylinders are connected to the base plate, and the two sliders on the sides are rotatably connected to the base plate. The blade holder is connected to the base plate. Except for the middle slider, the remaining two sliders are movably connected to the slide rail. The positions of the two sliders can be manually adjusted and fixed by pins / bolts. By adjusting the positions of the sliders on the sides, the radial advancing stroke can be adjusted. During the cutting process, the three advancing cylinders cooperate to advance the base radially, causing the blade to continuously increase the radial cutting depth of the cable. The three advancing cylinders cooperate to form a triangular structure, increasing the stability during cutting.

[0007] A C-shaped support plate is mounted on the base plate, with a through groove. Slide plates are slidably mounted on both sides of the support plate, and a base plate is mounted on each slide plate. An adjusting cylinder is mounted on the base plate via an extension plate, and the output end of the adjusting cylinder is connected to the base plate. A motor mount is mounted on one of the slide plates. The cutter holder is slidably mounted inside the support plate, and the power unit is mounted on the motor mount. Before cutting, the adjusting cylinder pushes the slide plate towards the cable via its output end, extending the cutter head and increasing the cutting radius of the blade to prevent the support plate from obstructing the cutting depth. After cutting, the adjusting cylinder retracts the cutter head via the slide plate. By retracting the cutter head, structural space is saved, thereby reducing the volume of the ring seat.

[0008] The power unit includes a cutting shaft rotatably mounted on a blade holder and a slide plate, and a drive motor mounted on a motor mount. The output shaft of the drive motor is connected to the cutting shaft. A cutting gear is mounted on the cutting shaft, located between two retaining rings and meshing with an internal gear ring for transmission. The cutting shaft is rotatably connected to the blade holder and slide plate via bearings (not shown in the figure). When cutting the cable, the drive motor (not shown in the figure) drives the cutting shaft to rotate, and the cutting gear drives the blade disc to rotate via the internal gear ring, thereby causing the blade to cut the cable.

[0009] The stabilizing unit includes two stabilizing wheels and one supporting wheel. The stabilizing wheels are rotatably mounted on the tool holder via pins, with the two stabilizing wheels distributed at both ends of the inner side of the tool holder. A supporting plate is rotatably mounted on the supporting wheel, with one end of the supporting plate penetrating through a bearing plate and the other end connected to the tool holder. The thickness of both the stabilizing wheels and the supporting wheel is less than the thickness of the cutter disc, and both the stabilizing wheels and the supporting wheel are in rolling contact with the retaining ring. The cooperation between the stabilizing wheels and the supporting wheel provides support for the cutter disc during rotation, preventing it from wobbling. Furthermore, the supporting wheel, mounted on the tool holder via the supporting plate, allows the cutter disc to be pushed towards the cable when the tool holder moves towards the cable, providing structural support for the cutter disc's radial advancement within the cable and preventing situations where the cutter disc cannot advance radially.

[0010] The ring seat has symmetrically installed loading rings inside. The clamping mechanism includes multiple fan-shaped positioning boxes located inside the loading rings. A clamping cylinder is installed on the outer circular end face of the loading ring to drive the positioning boxes to move radially. One positioning box connects to two clamping cylinders. Multiple positioning boxes cooperate to form a circular clamping structure, achieving cable clamping. The clamping cylinders provide power for the positioning boxes to clamp and release the cables.

[0011] The positioning box is a box structure without end caps. A centering roller is placed inside the positioning box. A C-shaped bracket is mounted on the loading ring. The open end of the bracket passes through the loading ring and inserts into the positioning box. The bracket and the centering roller are rotatably connected at both ends. A telescopic cylinder is installed between the open end of the bracket and the loading ring. When cable cutting is not required, the clamping cylinder pulls the positioning box to a position close to the loading ring, and the telescopic cylinder pulls the bracket towards the cable, causing the bracket to push the positioning roller out of the positioning box. The centering roller then contacts the cable. Multiple centering rollers cooperate to provide support for the cable while preventing it from sagging in the ring. When cable cutting is required, the centering roller does not move radially. The clamping cylinder pushes the positioning box towards the cable, causing the centering roller to retract into the positioning box, thus clamping the cable. During the movement of the positioning box, the bracket also provides guidance and support.

[0012] An anti-deviation block is provided on the side of the positioning box near the cutter head. The anti-deviation block has a ball groove and an oil guide groove on the same side as the cutter head. The oil guide groove connects to the ball groove, and one end of the oil guide groove passes through the anti-deviation block and connects to an external oil supply pipe. Balls are installed in the ball groove, and a sealing plate is installed on the anti-deviation block, with the balls protruding from the sealing plate. The distance between the anti-deviation blocks in the two clamping mechanisms is greater than the thickness of the cutter head. When cutting the cable, the balls contact the cutter head. The arrangement of the balls and the anti-deviation block prevents the cutter head from deflecting during cable cutting.

[0013] A drive box is symmetrically installed on the outside of the ring seat. A frame is installed below the drive box. A lifting cylinder is installed on the frame. A guide rod is slidably installed on the frame. The output ends of the guide rod and the lifting cylinder are both connected to the drive box. The drive mechanism includes two vertical plates mounted in a drive housing and a rotating shaft rotatably mounted on the vertical plates. A drive gear and a transmission gear are mounted on the rotating shaft. The transmission gear meshes with an external gear ring for transmission. A reducer and a servo motor are installed in the drive housing. The output shaft of the servo motor is connected to the input end of the reducer. An output gear is mounted on the output shaft of the reducer, and the output gear meshes with the drive gear for transmission. The servo motor (not shown in the figure) drives the drive gear to rotate through the reducer (not shown in the figure), which in turn causes the transmission gear to drive the external gear ring to rotate. A lifting cylinder moves the ring seat up and down, allowing the ring seat to connect with other external cable delivery equipment.

[0014] Compared with the prior art, the beneficial effects of this invention are as follows: The drive mechanism drives the outer gear ring to rotate, causing the advancing unit to drive the cutter head to move in a circular motion around the cable. The advancing unit advances the cutter head radially towards the cable, allowing the blade to perform a circular cut on the cable. During the circular cut, the power unit causes the cutter head to rotate, making the cutter head rotate around its own central axis. This causes the blade to rotate along with the cutter head as it rotates around the cable to cut. The planetary rotating blade revolves around the cable and feeds radially, avoiding the compression of the cable cross-section caused by guillotine-type cutting. The blade gradually feeds towards the center under the push of the advancing unit, thereby reducing the cracking of the insulation layer and ensuring a smooth cut surface.

[0015] The cutter head and blade are designed as a ring-shaped hollow structure, which reduces the overall area of ​​the cutter head and blade, and also reduces the contact area with the cable cutting surface during the cutting process. This avoids damage to the insulation layer caused by heat generated by friction between the blade and the material during the cutting process. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a partial sectional perspective view of the present invention; Figure 3 This is a perspective view of the connection between the external gear ring and the drive gear of the present invention; Figure 4 This is a diagram showing the positional distribution of the clamping mechanism and cutting mechanism of the present invention within the ring seat; Figure 5 This is an exploded view of the clamping mechanism of the present invention; Figure 6 This is a perspective view of the cutting mechanism of the present invention; Figure 7 An exploded view showing the connection of the progressive unit, support plate, tool holder, and tool disc of the present invention. Figure 8 This is an exploded view of the connection between the tool holder and the tool disc of the present invention.

[0017] In the diagram: 1. Ring seat; 2. Positioning box; 21. Anti-deviation block; 22. Sealing plate; 3. Centering roller; 4. Drive box; 5. Transmission gear; 51. Drive gear; 6. External gear ring; 7. Slide rail; 71. Slider; 72. Advancement cylinder; 8. Base plate; 81. Adjustment cylinder; 9. Bearing plate; 91. Slide plate; 92. Motor base; 10. Cutter head; 101. Cutter blade; 102. Retaining ring; 11. Loading ring; 12. Bracket; 13. Clamping cylinder; 14. Cutting shaft; 15. Cutter holder; 16. Support plate; 17. Support wheel; 18. Stabilizing wheel; 19. Cutting gear; 20. Frame; 23. Lifting cylinder. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figure 1 - Figure 8 As shown, the present invention provides a technical solution: a cutting device for cable processing, including a ring seat 1 and a cutting mechanism. A clamping mechanism is symmetrically installed inside the ring seat 1, and the cutting mechanism is located inside the ring seat 1. Two clamping mechanisms are distributed on both sides of the cutting mechanism.

[0020] A drive box 4 is symmetrically installed on the outside of the ring seat 1. A frame 20 is installed below the drive box 4. A lifting cylinder 23 is installed on the frame 20. A guide rod is slidably installed on the frame 20. The output ends of the guide rod and the lifting cylinder 23 are connected to the drive box 4. The lifting cylinder 23 drives the ring seat 1 to move up and down, which can enable the ring seat 1 to connect with other external cable transmission equipment.

[0021] The drive mechanism includes two vertical plates installed in the drive box 4 and a rotating shaft rotatably mounted on the vertical plates. A drive gear 51 and a transmission gear 5 are mounted on the rotating shaft. A reducer and a servo motor are installed in the drive box 4. The output shaft of the servo motor is connected to the input end of the reducer. An output gear is installed on the output shaft of the reducer. The output gear meshes with the drive gear 51 for transmission.

[0022] The ring seat 1 is symmetrically equipped with loading rings 11. The clamping mechanism includes multiple fan-shaped positioning boxes 2. The positioning boxes 2 are located inside the loading rings 11. The positioning boxes 2 are box structures without end caps and the opening faces the cable. A centering roller 3 is placed in the positioning box 2. A clamping cylinder 13, which drives the positioning box 2 to move radially, is installed on the outer circular end face of the loading ring 11. A bracket 12 with a "C"-shaped cross-section is also installed. One positioning box 2 connects to two clamping cylinders 13. The clamping cylinders 13 are hydraulic cylinders that provide power for the positioning box 2 to clamp and release the cable. The open end of the bracket 12 passes through the loading ring 11 and is inserted into the positioning box 2. The bracket 12 is rotatably connected to both ends of the centering roller 3. A telescopic cylinder is provided between the open end of the bracket 12 and the loading ring 11. The two clamping cylinders 13 are distributed on both sides of the bracket 12.

[0023] A deflection prevention block 21 is provided on the side of the positioning box 2 near the cutter head 10. The anti-deflection block 21 has a ball groove and an oil guide groove on the side near the cutter head 10. The oil guide groove connects to the ball groove, and one end of the oil guide groove passes through the anti-deflection block 21 and connects to an external oil supply equipment pipeline. Balls are installed in the ball groove, and a sealing plate 22 is installed on the anti-deflection block 21, with the balls protruding from the sealing plate 22. The distance between the anti-deflection blocks 21 in the two clamping mechanisms is greater than the thickness of the cutter head 10. When cutting the cable, the balls contact the cutter head 10. The arrangement of the balls and the anti-deflection block 21 prevents the cutter head 10 from deflecting during cable cutting.

[0024] The cutting mechanism includes an external gear ring 6 and three tool holders 15. The external gear ring 6 is rotatably mounted on the ring seat 1. The external gear ring 6 meshes with the transmission gear 5 for transmission. Three progressive units are provided on the inner circular end face of the external gear ring 6. One tool holder 15 is mounted on one progressive unit. A power unit is mounted on the tool holder 15. An annular cutter disc 10 is mounted on the tool holder 15. A stabilizing unit is mounted on the tool holder 15 to support and stabilize the structure of the cutter disc 10. The outer circular end face of the cutter head 10 is provided with an annular cutting edge 101, and the inner circular end face of the cutter head 10 is symmetrically provided with a retaining ring 102, and an internal gear ring is provided between the two retaining rings 102.

[0025] The advancing unit includes an arc-shaped slide rail 7 and a base plate 8. The slide rail 7 is mounted on the inner circular end face of the outer gear ring 6. Three sliders 71 are mounted on the slide rail 7. Except for the middle slider 71, the other two sliders 71 are movably connected to the slide rail 7. The positions of the two sliders 71 can be manually adjusted and fixed by pins / bolts. The radial advancing stroke can be adjusted by adjusting the positions of the sliders 71 on both sides. Each of the three sliders 71 is equipped with an advancing cylinder 72. The two sliders 71 on both sides are rotatably connected to the advancing cylinder 72. The three advancing cylinders 72 are connected to the base plate 8. The tool holder 15 is connected to the base plate 8.

[0026] A support plate 9 with a "C" shaped cross section is provided on the substrate 8. A through groove is provided on the support plate 9. Slide plates 91 are slidably installed on both sides of the support plate 9. A base plate is installed on the slide plates 91. An adjustment cylinder 81 is installed on the substrate 8 through an extension plate. The output end of the adjustment cylinder 81 is connected to the base plate. A motor base 92 is installed on one of the slide plates 91. The tool holder 15 is slidably installed inside the support plate 9. The power unit is installed on the motor base 92.

[0027] The power unit includes a cutting shaft 14 rotatably mounted on the tool holder 15 and the slide plate 91, and a drive motor mounted on the motor base 92. The cutting shaft 14 is rotatably connected to the tool holder 15 and the slide plate 91 through bearings. The output shaft of the drive motor is connected to the cutting shaft 14. A cutting gear 19 is mounted on the cutting shaft 14. The cutting gear 19 is located between two retaining rings 102 and meshes with the internal gear ring for transmission.

[0028] The stabilizing unit includes two stabilizing wheels 18 and one supporting wheel 17. The stabilizing wheels 18 are rotatably mounted on the tool holder 15 via pins. The two stabilizing wheels 18 are distributed at both ends of the inner side of the tool holder 15. A supporting plate 16 is rotatably mounted on the supporting wheel 17. One end of the supporting plate 16 passes through the bearing plate 9 and the other end is connected to the tool holder 15. The thickness of both the stabilizing wheels 18 and the supporting wheel 17 is less than the thickness of the cutter disc 10. Both the stabilizing wheels 18 and the supporting wheel 17 are in rolling contact with the retaining ring 102. Through the cooperation of the stabilizing wheels 18 and the supporting wheel 17, the cutter disc 10 is supported when it rotates, preventing it from shaking. In addition, the supporting wheel 17 is mounted on the tool holder 15 via the supporting plate 16. When the tool holder 15 moves towards the cable, the supporting wheel 17 and the supporting plate 16 can push the cutter disc 10 towards the cable, and provide structural support for the cutter disc 10 to advance radially through the cable, preventing the cutter disc 10 from failing to advance radially.

[0029] The working principle of this invention is as follows: The cable to be cut passes through the ring seat 1. The clamping cylinder 13 pulls the positioning box 2 to a position that fits against the loading ring 11. The telescopic cylinder pulls the bracket 12 towards the cable, causing the bracket 12 to bring the centering roller 3 into contact with the cable. Multiple centering rollers 3 cooperate to support the cable. When the cable needs to be cut, the position of the centering roller 3 does not move radially. The clamping cylinder 13 pushes the positioning box 2 towards the cable, causing the centering roller 3 to be retracted into the positioning box 2, thus clamping the cable.

[0030] After clamping the cable, before cutting, the adjusting cylinder 81 first pushes the slide plate 91 towards the cable via its output end. This, in turn, moves the cutter holder 15 and cutter disc 10 via the cutting shaft 14, causing the cutter disc 10 to extend and increasing the cutting radius of the blade 101, preventing the support plate 9 from obstructing the cutting depth of the blade 101. The servo motor drives the drive gear 51 to rotate via a reducer, which in turn causes the transmission gear 5 to rotate the outer gear ring 6. The three advancing cylinders 72 work together to radially advance the base plate 8. The support plate 9 moves the cutter holder 15, causing the cutter disc 10, with the blade 101, to continuously increase the radial cutting depth of the cable. During cable cutting, the drive motor rotates the cutting shaft 14, and the cutting gear 19, via the inner gear ring, rotates the cutter disc 10, causing the blade 101 to cut the cable. After cutting to a certain depth, two of the blades 101 and the cutter head 10 are reset under the action of the cutter holder 15, the support plate 9, the base plate 8 and the advance cylinder 72. The remaining blade 101 and the cutter head 10 are pushed by the advance cylinder 72 to complete the final cutting operation, and then reset.

[0031] After the cut is completed, the regulating cylinder 81 retracts the cutter head 10 again via the slide plate 91. The servo motor and drive motor stop working.

[0032] During the cutting process, the drive mechanism rotates the outer gear ring 6, causing the advancing unit to drive the cutter head 10 to move in a circular motion around the cable. The advancing unit advances the cutter head 10 towards the cable, causing the blade 101 to perform a circular cut on the cable. During the circular cut, the power unit rotates the cutter head 10, causing it to rotate around its own central axis. This causes the blade 101 to rotate along with the cutter head 10 as it rotates around the cable to cut. The planetary rotating blade 101 revolves around the cable and feeds radially, avoiding the squeezing of the cable cross-section caused by guillotine-type cutting. The blade 101 gradually feeds towards the center under the push of the advancing unit, thereby reducing the cracking of the insulation layer and ensuring a smooth cut surface.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cutting device for cable processing, characterized in that: It includes a ring seat (1) and a cutting mechanism. The ring seat (1) is symmetrically equipped with a clamping mechanism inside and a driving mechanism is symmetrically equipped with a driving mechanism outside. The cutting mechanism is located inside the ring seat (1) and the two clamping mechanisms are distributed on both sides of the cutting mechanism. The cutting mechanism includes an external gear ring (6) and at least two tool holders (15). The external gear ring (6) is rotatably mounted on the ring seat (1). The external gear ring (6) meshes with the drive mechanism for transmission. At least two progressive units are provided on the inner circular end face of the external gear ring (6). The tool holders (15) are mounted on the progressive units. A power unit is mounted on the tool holders (15). An annular cutter disc (10) is mounted on the tool holders (15). A stabilizing unit is mounted on the tool holders (15) to support and stabilize the structure of the cutter disc (10). The outer circular end face of the cutter head (10) is provided with an annular cutting edge (101), and the inner circular end face of the cutter head (10) is symmetrically provided with a retaining ring (102). An internal gear ring is provided between the two retaining rings (102). The stabilizing unit is in rolling contact with the inner circular end face of the retaining ring (102), and the power unit is engaged with the internal gear ring for transmission.

2. The cable cutting device according to claim 1, characterized in that: The advancing unit includes an arc-shaped slide rail (7) and a base plate (8). The slide rail (7) is mounted on the inner circular end face of the outer gear ring (6). Three sliders (71) are mounted on the slide rail (7). Each of the three sliders (71) is equipped with an advancing cylinder (72). The two sliders (71) on both sides are rotatably connected to the advancing cylinders (72). The three advancing cylinders (72) are connected to the base plate (8). The two sliders (71) on both sides are rotatably connected to the base plate (8). The tool holder (15) is connected to the base plate (8).

3. The cable cutting device according to claim 2, characterized in that: The substrate (8) is provided with a support plate (9) with a "C" shaped cross section. The support plate (9) is provided with a through groove. Slide plates (91) are slidably installed on both sides of the support plate (9). A base plate is installed on the slide plate (91). An adjustment cylinder (81) is installed on the substrate (8) through an extension plate. The output end of the adjustment cylinder (81) is connected to the base plate. A motor base (92) is installed on one of the slide plates (91). The tool holder (15) is slidably installed inside the support plate (9). The power unit is installed on the motor base (92).

4. The cable cutting device according to claim 3, characterized in that: The power unit includes a cutting shaft (14) rotatably mounted on the tool holder (15) and the slide plate (91) and a drive motor mounted on the motor base (92). The output shaft of the drive motor is connected to the cutting shaft (14). A cutting gear (19) is mounted on the cutting shaft (14). The cutting gear (19) is located between two retaining rings (102) and meshes with the internal gear ring for transmission.

5. The cable cutting device according to claim 3, characterized in that: The stabilizing unit includes two stabilizing wheels (18) and one supporting wheel (17). The stabilizing wheels (18) are rotatably mounted on the tool holder (15) via pins. The two stabilizing wheels (18) are distributed at both ends of the inner side of the tool holder (15). A supporting plate (16) is rotatably mounted on the supporting wheel (17). One end of the supporting plate (16) passes through the bearing plate (9) and the other end of the supporting plate (16) is connected to the tool holder (15). The thickness of both the stabilizing wheels (18) and the supporting wheel (17) is less than the thickness of the cutter disc (10). Both the stabilizing wheels (18) and the supporting wheel (17) are in rolling contact with the retaining ring (102).

6. The cable cutting device according to claim 1, characterized in that: The ring seat (1) is symmetrically equipped with loading rings (11). The clamping mechanism includes multiple fan-shaped positioning boxes (2). The positioning boxes (2) are located inside the loading ring (11). The outer circular end face of the loading ring (11) is equipped with a clamping cylinder (13) that drives the positioning box (2) to move radially. One positioning box (2) connects two clamping cylinders (13).

7. A cutting device for cable processing according to claim 6, characterized in that: The positioning box (2) is a box structure without end caps. A centering roller (3) is placed in the positioning box (2). A bracket (12) with a "C" shaped cross section is installed on the loading ring (11). The open end of the bracket (12) passes through the loading ring (11) and is inserted into the positioning box (2). The two ends of the bracket (12) are rotatably connected to the centering roller (3). A telescopic cylinder is provided between the open end of the bracket (12) and the loading ring (11).

8. A cutting device for cable processing according to claim 6, characterized in that: The positioning box (2) is provided with an anti-deviation block (21) on the side near the cutter head (10). The anti-deviation block (21) is provided with a ball groove and an oil guide groove on the side near the cutter head (10). The oil guide groove is connected to the ball groove. One end of the oil guide groove passes through the anti-deviation block (21) and is connected to the external oil supply equipment pipeline. A ball is installed in the ball groove. A sealing plate (22) is installed on the anti-deviation block (21). The ball protrudes from the sealing plate (22).

9. A cutting device for cable processing according to claim 1, characterized in that: A drive box (4) is symmetrically installed on the outside of the ring seat (1). A frame (20) is installed below the drive box (4). A lifting cylinder (23) is installed on the frame (20). A guide rod is slidably installed on the frame (20). The output ends of the guide rod and the lifting cylinder (23) are connected to the drive box (4). The drive mechanism includes two vertical plates installed in the drive box (4) and a rotating shaft rotatably installed on the vertical plates. A drive gear (51) and a transmission gear (5) are installed on the rotating shaft. The transmission gear (5) meshes with an external gear ring (6) for transmission. A reducer and a servo motor are installed in the drive box (4). The output shaft of the servo motor is connected to the input end of the reducer. An output gear is installed on the output shaft of the reducer. The output gear meshes with the drive gear (51) for transmission.