Cable corrugated pipe girdling device and control method thereof

Abstract

The invention discloses a cable corrugated pipe girdling device and a control method thereof. The cable corrugated pipe girdling device comprises a machine shell and a positioning assembly which is coaxially arranged with the machine shell and used for clamping and fixing a cable. The annular rail, the rotating assembly, the driving assembly, the moving assembly, the cutting assembly, the first laser range finder and the driving assembly are sequentially and coaxially arranged with the machine shell and the positioning assembly, the rotating assembly rotates along the annular rail, the driving assembly is located in the machine shell, the moving assembly is connected with the rotating assembly, the cutting assembly is located on a moving part of the moving assembly, and the first laser range finder is located on the moving part of the moving assembly. And the controller is electrically connected with the moving assembly, the cutting assembly and the first laser range finder. According to the characteristics that the corrugated pipe of the cable is spiral and the section is non-perfect circle, the corrugated pipe is cut in a segmented mode for multiple times according to the peripheral contour of the cable, compared with one-time ring cutting, a shielding layer of the cable is protected, negative feedback closed-loop control over the cutting depth of a single segment can be achieved, and the cutting efficiency is improved. Therefore, the cutting circular saw can cut the cable corrugated pipe with high precision without damaging a shielding layer.

Description

Technical Field

[0001] The invention relates to a ring cutting device and a control method thereof, in particular to a cable corrugated tube ring cutting device and a control method thereof. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. The basic structure of power cables consists of four parts: core (conductor), insulation layer, shielding layer, and protective layer. The corrugated tube that protects the cable is a metal tube made of aluminum with a spiral wave shape, which serves as a protective layer in the cable system. In order to connect the cable bodies or the terminal system, the cable needs to be stripped and the corrugated tube on the outside of the cable needs to be cut off to achieve the connection between the internal conductive segments. When cutting the corrugated tube, it is required not to damage the shielding layer to prevent damage to the line.

[0003] At present, when processing cables with a diameter of 50-150mm, the cutting methods mainly include manual cutting and manually operated machine cutting. Manual cutting operations are inefficient, unreliable, and the cutting accuracy cannot be guaranteed; most of the existing cutting machines and equipment only focus on the cutting position of the corrugated tube, but ignore the accuracy of the cutting depth of the corrugated tube. The actual operation requires the cutting accuracy to reach 0.05mm, that is, the existing cutting method cannot meet the requirement of only cutting and removing the corrugated tube outside the cable during cable stripping and not damaging the shielding layer. Summary of the invention

[0004] Purpose of the invention: The first purpose of the present invention is to provide a cable corrugated tube ring cutting device with high cutting accuracy and without damaging the cable shielding layer.

[0005] The second object of the present invention is to provide a control method for a cable corrugated tube ring cutting device.

[0006] Technical solution: The present invention discloses a cable corrugated tube ring cutting device, which includes a casing and a positioning assembly coaxially arranged with the casing for clamping and fixing the cable, and also includes an annular track coaxially arranged with the casing and the positioning assembly in sequence, a rotating assembly rotatable along the annular track, a driving assembly located in the casing and used to drive the rotating assembly to rotate, a moving assembly connected to the rotating assembly and used to adjust the radial feed depth, a cutting assembly located on the moving part of the moving assembly and used to cut the cable, a first laser rangefinder located on the moving part of the moving assembly and used to measure the peripheral contour data of the cable, and a controller electrically connected to the driving assembly, the moving assembly, the cutting assembly and the first laser rangefinder.

[0007] Furthermore, the rotating assembly includes a wheel frame and two wheels symmetrically arranged and rotatably connected to the wheel frame, the two wheels are respectively clamped on the outer track and the inner track of the circular track and are in rotational contact with them, wherein the driving assembly drives one wheel to rotate along the inner track of the circular track, and at the same time drives the other wheel to rotate along the outer track of the circular track through the wheel frame.

[0008] Furthermore, the moving assembly includes two support blocks fixedly connected to the wheel frame, a lead screw rotatably installed between the two support blocks, a feed motor installed on the wheel frame and with an output shaft fixedly connected to the lead screw, a slider threadedly connected to the outer circumference of the lead screw, a second laser rangefinder installed on one side of the upper support block, and a reflector installed on the slider and cooperating with the second laser rangefinder to measure the actual moving distance of the slider.

[0009] Furthermore, the Rockwell hardness of the wheel is ≥55.

[0010] Furthermore, the drive assembly includes a drive motor installed inside the casing, a drive gear fixedly connected to the output shaft of the drive motor, an annular tube fixedly connected to the inner wall of the casing and coaxially arranged with the annular track, a sun gear rotatably installed on the outer periphery of the annular tube and meshing with the drive gear, an internal gear fixedly connected to the inner wall of the casing and arranged on the outer periphery of the sun gear, a planetary gear meshing with the sun gear and rotating along the inner teeth of the internal gear, and a drive shaft fixedly connected to the central axis of the planetary gear, and the end of the drive shaft away from the planetary gear is fixedly connected to the central axis of the wheel located on the inner track of the annular track.

[0011] Furthermore, the cutting assembly includes a cutting circular saw fixedly mounted on the bottom of the slider and a rotating motor located on the slider and having an output shaft connected to the cutting circular saw.

[0012] Furthermore, the positioning assembly includes a support, a chuck body fixedly connected to the support and having a wire hole at the center for the cable to pass through, a movable claw slidably connected to a plurality of annular array grooves formed on the inner wall of the wire hole, and a claw driving mechanism arranged on one side of the chuck body for adjusting the movable claw to clamp the cable.

[0013] Furthermore, it also includes a support rod, which is provided with threads at both ends and the middle part, and the chuck body is provided with a plurality of through holes distributed in a circular array, one end of the support rod passes through the through hole and is threadedly connected to the nut on the other side of the chuck body, the middle part of the support rod is threadedly connected to the casing, and the other end of the support rod passes through the casing and is threadedly connected to the annular track.

[0014] Based on the same inventive concept, the present invention also discloses a control method for a cable corrugated tube ring cutting device, comprising the following steps:

[0015] S1: Adjust the cutting assembly to the zero position of the circular track;

[0016] S2: The cable is clamped and fixed by the positioning component, and the cable and the cable corrugated tube ring cutting device are arranged coaxially;

[0017] S3: driving the moving assembly and the cutting assembly to rotate around the circular track for one circle, so that the first laser rangefinder scans the cable periphery contour data and transmits the cable periphery contour data to the controller;

[0018] S4: Adjust the cutting assembly to the zero position of the circular track again;

[0019] S5: The controller adjusts the feed motor rotation according to the cable outer periphery profile data to make the slider move along the cable diameter direction. At the same time, the controller implements negative feedback closed-loop control of the slider movement distance, so that the slider moves along the cable diameter with the cutting circular saw to the maximum displacement position and rotates to cut the cable;

[0020] S6: adjusting the feed motor through the controller to return the cutting circular saw to the initial position;

[0021] S7: The controller adjusts the driving component according to the cable outer peripheral profile data so that the rotating component moves a step distance on the circular track;

[0022] S8: Repeat steps S5 to S7 until the rotating assembly moves one circle around the circular track and returns to the zero position of the circular track.

[0023] Furthermore, the specific steps for implementing the negative feedback closed-loop control in step S5 are:

[0024] The controller obtains the standard distance of the slider movement through the cable periphery profile data;

[0025] The controller adjusts the number of revolutions of the feed motor according to the standard distance and drives the slider to move;

[0026] The second laser rangefinder and the reflective sheet measure the actual distance moved by the slider and transmit the actual distance to the controller;

[0027] The controller calculates the difference between the actual distance and the standard distance, and uses the difference as the input of the negative feedback adjustment algorithm to calculate the moving distance that the slider needs to be adjusted again, and repeats this process until the difference between the actual distance and the standard distance is less than the preset value.

[0028] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0029] (1) Considering the characteristics that the cable corrugated tube is spiral and its cross section is not a perfect circle, the moving component and the first laser rangefinder are set to realize negative feedback closed-loop control of the moving distance of the slider, and the cutting component is used to cut the cable corrugated tube in multiple sections, so that the cutting circular saw can cut the cable corrugated tube with high precision without damaging the cable shielding layer, thereby realizing automatic high-precision cutting of the cable corrugated tube;

[0030] (2) The high-hardness wheel and the synchronous movement of the first laser rangefinder and the cutting circular saw avoid the influence of the wear of the wheel and the circular track on the measurement result; when the cable corrugated tube is actually cut, the cutting accuracy can be as high as 0.05mm, which meets the requirements of actual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the rotating assembly, the moving assembly and the cutting assembly of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the drive assembly and the housing of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the positioning assembly of the present invention;

[0035] Figure 5 is a control flow chart of the control method of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the cable corrugated conduit of the present invention. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0038] Example 1

[0039] like Figure 1 and Figure 4As shown, a cable corrugated tube ring cutting device described in the present invention includes a casing 1, a positioning component 2, a ring track 3, a support rod 4, a rotating component 5, a driving component 6, a moving component 7, a cutting component, a first laser rangefinder 8 and a controller, wherein the casing 1, the positioning component 2 and the ring track 3 are coaxially arranged, the driving component 6 drives the rotating component 5 to rotate along the ring track 3, the moving component 7 is installed on one side of the fixed part of the rotating component 5, the cutting component and the first laser rangefinder 8 are installed on one side of the movable part of the moving component 7, the driving component 6, the moving component 7, the cutting component and the first laser rangefinder 8 are electrically connected to the controller respectively, and the driving component 6, the moving component 7 and the cutting component can be controlled by manipulating the controller. The positioning assembly 2 includes a support 26, a chuck body 28, an active claw 29 and a claw driving mechanism 30. The chuck body 28 is fixedly installed on the top of the support 26. A wire hole 27 is opened at the center of the chuck body 28. The inner wall of the wire hole 27 is opened with a plurality of grooves distributed in a ring array. The active claw 29 is slidably connected with the groove. The claw driving mechanism 30 is installed on one side of the chuck body 28, and the claw driving mechanism 30 is used to adjust the active claw 29 so that the active claw 29 moves along the inner wall of the groove. Below the guide part of the three active claws 29 on the chuck body 28, there are threads that mesh with the flat threads on the back of the disc bevel gear. When the small bevel gear is rotated through the square hole with a wrench, the disc gear rotates, and the flat threads on the back simultaneously drive the three active claws 29 to approach or withdraw from the center to clamp workpieces of different diameters. The claw driving mechanism 30 is an existing conventional structure. During cutting, the cable passes through the cable hole 27, and the position of the movable claw 29 is adjusted by the claw driving mechanism 30, so that multiple movable claws 29 move synchronously toward the cable until the movable claw 29 clamps and fixes the cable; and the arrangement of the movable claw 29 and the claw driving mechanism 30 can clamp cables of different diameters. Both ends of the support rod 4 are provided with threads, and the chuck body 28 is provided with multiple through holes 31 distributed in an annular array. One end of the support rod 4 passes through the through hole 31 and is threadedly connected to the nut on the other side of the chuck body 28, and the other end of the support rod 4 passes through the housing 1 and is threadedly connected to the annular track 3, and the support rod 4 is fixedly connected to the housing 1.

[0040] like Figure 1 and Figure 2As shown, the rotating assembly 5 includes a wheel frame 15 and two wheels 16, the two wheels 16 are symmetrically mounted at both ends of the wheel frame 15, and the wheels 16 are rotatably connected to the wheel frame 15. Preferably, the wheels 16 are made of a material with a Rockwell hardness of ≥55, so that the deformation of the wheels 16 is within a certain accuracy range, which is beneficial to improving the stability of the wheels 16 during rotation and the accuracy of the distance the wheels 16 move on the circular track 3 in a single time; the two wheels 16 are respectively clamped on the outer track and the inner track of the circular track 3 and are in rotational contact therewith. When one of the wheels 16 rotates, the other wheel 16 can be caused to rotate along the circular track 3 through the linkage action of the wheel frame 15. The moving assembly 7 includes two support blocks 9, a lead screw 10, a feed motor 11, a slider 12, a second laser rangefinder 13 and a reflective sheet 14. The two support blocks 9 are fixedly connected to the side of the wheel frame 15 away from the wheel 16. The lead screw 10 is rotatably installed between the two support blocks 9. The feed motor 11 is fixedly installed on the wheel frame 15, and the output shaft of the feed motor 11 is fixedly connected to the lead screw 10. The slider 12 is threadedly connected to the lead screw 10, and the slider 12 is located between the two support blocks 9. The second laser rangefinder 13 is fixedly installed on one side of the upper support block 9. The reflective sheet 14 is installed on the slider 12 and cooperates with the second laser rangefinder 13. The cutting assembly includes a rotating motor 24 and a cutting circular saw 25. The cutting circular saw 25 is installed at the bottom of the slider 12. The rotating motor 24 is fixedly installed on the slider 12, and the output shaft of the rotating motor 24 is fixedly connected to the center of the cutting circular saw 25, that is, the rotating motor 24 drives the cutting circular saw 25 to rotate and cut the cable. The first laser rangefinder 8 is fixedly mounted on one side of the slider 12. Preferably, the first laser rangefinder 8 is located above the cutting circular saw 25. The feed motor 11, the second laser rangefinder 13 and the rotary motor 24 are electrically connected to the controller respectively. The first laser rangefinder 8 and the cutting circular saw 25 are both mounted on the slider 12. The two move synchronously. The first laser rangefinder 8 follows the rotating assembly 5 to rotate around the cable and measure the diameter of the cable. Figure 6As shown, the cable corrugated tube is spiral, so its cross section is not a perfect circle. In addition, due to the manufacturing error of the cable corrugated tube production process, its cross section is not a perfect circle. Therefore, the first laser rangefinder 8 can measure the cable periphery contour data by going around the cable, and the cable periphery contour data will be transmitted to the controller; because the first laser rangefinder 8 and the cutting circular saw 25 move synchronously, the wear of the wheel 16 and the annular track 3 is avoided. When actually cutting the cable, the cutting accuracy is required to reach 0.05mm, especially when cutting the corrugated tube, and the cable is not a perfect circle, but a polygon close to a circle. Therefore, during the cutting process, the depth of a single cut should be adjusted according to the actual situation of the cable. The moving distance of the cutting circular saw 25 is adjusted according to the cable outer peripheral profile data measured by the first laser rangefinder 8, and then the depth of the cutting circular saw 25 cutting the cable in a single time is adjusted; the feed motor 11 drives the lead screw 10 to rotate, so that the slider 12 and the cutting circular saw 25 move along the length direction of the lead screw 10. The moving distance of the slider 12 and the cutting circular saw 25 can be indirectly controlled by controlling the number of rotations of the feed motor 11. However, in the actual operation process, the transmission of the lead screw 10 will cause a certain error. After the feed motor 11 rotates a specified number of times, the slider 12 and the cutting circular saw 25 will move. 5 cannot move the preset distance. By setting the second laser rangefinder 13 and the reflective sheet 14, the actual distance moved by the slider 12 and the cutting circular saw 25 can be measured. By comparing the actual distance moved by the slider 12 with the preset distance, on the one hand, it can be understood whether the slider 12 and the cutting circular saw 25 have moved to the preset position. On the other hand, the slider 12 can be adjusted multiple times according to the error between the two until the error between the two is less than the preset standard, that is, the error between the two is less than 0.05mm, which is conducive to improving the accuracy of the single cutting of the cutting circular saw 25 and the accuracy of cable cutting.

[0041] like Figure 3As shown, the driving assembly 6 includes a driving motor 17, a driving gear 18, an annular tube 19, a sun gear 20, an internal gear 21, a planetary gear 22 and a driving shaft 23. The driving motor 17 is fixedly mounted on the inner wall of the casing 1, the driving gear 18 is fixedly connected to the output shaft of the driving motor 17, the annular tube 19 is fixedly connected to the inner wall of the casing 1, and the annular tube 19 is coaxially arranged with the casing 1. When cutting the cable, the cable passes through the annular tube 19, the sun gear 20 is rotatably mounted on the outer periphery of the annular tube 19, and the driving gear 18 is meshed with the sun gear 20, the internal gear 21 is fixedly connected to the inner wall of the casing 1, and the internal gear 21 is arranged on the outer periphery of the sun gear 20, the driving gear 18, the planetary gear 22 and the driving shaft 23. 2 and the driving shaft 23 are both located in the annular space formed by the internal gear 21 and the sun gear 20, the planetary gear 22 is meshed with the sun gear 20, and the planetary gear 22 rotates along the inner teeth of the internal gear 21, the thickness of the sun gear 20 is greater than the sum of the thicknesses of the driving gear 18 and the planetary gear 22, and the driving gear 18 and the planetary gear 22 are respectively meshed with the edge portions of the gears on both sides of the sun gear 20, that is, the driving gear 18 and the planetary gear 22 are staggered with each other and do not interfere with each other, the driving shaft 23 is fixedly connected to the central axis of the planetary gear 22, and one end of the driving shaft 23 away from the planetary gear 22 is fixedly connected to the central axis of the wheel 16 located on the inner track of the annular track 3. After the driving motor 17 is started, it drives the driving gear 18 to rotate, and the driving gear 18 drives the sun gear 20 meshing with it to rotate, and the sun gear 20 drives the planetary gear 22 meshing with it to rotate. Because the central axis of the planetary gear 22 is not fixed, and under the restriction of the internal gear 21, the planetary gear 22 rotates along the internal teeth of the internal gear 21 while maintaining its own rotation. The driving shaft 23 connects the planetary gear 22 and the wheel 16, so that the two wheels 16 rotate along the annular track 3, and then the wheel frame 15 rotates around the cable with the moving component 7, the cutting component and the first laser rangefinder 8.

[0042] Example 2

[0043] The control method of the cable corrugated tube ring cutting device described in the present invention is as follows: Figure 5 and Figure 6 As shown, the following steps are included:

[0044] S1: Adjust the cutting assembly to the zero position of the circular track 3; adjust the driving motor 17 through the controller, the driving motor 17 drives the driving gear 18 to rotate, the driving gear 18 drives the sun gear 20 meshing with it to rotate, and the sun gear 20 drives the planetary gear 22 meshing with it to rotate. Because the central axis of the planetary gear 22 is not fixed, and under the restriction of the inner gear 21, the planetary gear 22 rotates along the inner teeth of the inner gear 21 while maintaining its own rotation. The driving shaft 23 connects the planetary gear 22 and the wheel 16, so that the two wheels 16 rotate along the circular track 3, and then the wheel frame 15 rotates with the moving assembly 7, the cutting assembly and the first laser rangefinder 8 to the zero position of the circular track 3, that is, the highest point of the circular track 3. Before the actual operation, the device is first self-checked and initialized; after the device is powered on, the device executes the self-check procedure and completes the initialization. If the self-check is abnormal, an error message is issued. The operator debugs the device until the self-check is normal, and then proceeds to the next step after the self-check is normal. Then set the parameters; the operator sets and changes the parameters according to actual needs. Conventional parameters include the single rotation angle of the drive motor 17, the speed of the rotary motor 24, etc.

[0045] S2: Clamp and fix the cable through the positioning component 2, and set the cable coaxially with the cable corrugated tube ring cutting device; pass the free end of the cable through the annular track 3, the annular tube 19, the casing 1 and the wire hole 27 of the chuck body 28 in sequence, and set the cable coaxially with the annular track 3, adjust the position of the movable claw 29 through the claw driving mechanism 30, so that multiple movable claws 29 move synchronously toward the cable until the movable claw 29 clamps the cable.

[0046] S3: The driving motor 17 is adjusted by the controller to make the two wheels 16 rotate around the circular track 3 for one circle, so that the moving component 7, the cutting component and the first laser rangefinder 18 rotate around the circular track 3 for one circle synchronously, so that the first laser rangefinder 8 scans the cable peripheral contour data and transmits the cable peripheral contour data to the controller.

[0047] S4: Adjust the cutting assembly to the zero position of the circular track 3 again.

[0048] S5: The controller adjusts the feed motor 11 to rotate according to the cable outer periphery profile data so that the slider 12 moves along the cable diameter direction. At the same time, the controller implements negative feedback closed-loop control of the moving distance of the slider 12, so that the slider 12 moves along the cable diameter direction with the cutting circular saw 25 to the maximum displacement position to rotate and cut the cable. When actually cutting the cable, the cutting accuracy is relatively high, especially when cutting the corrugated tube. The cable is spiral and the cross section is not a complete circle. In essence, it is a polygon close to a circle. Therefore, in the cutting process, the depth of a single cut should be adjusted according to the cable outer periphery profile data. The cable is cut one section at a time along the outer periphery, that is, the cable is evenly divided into multiple sections along the outer periphery. Preferably, the outer periphery of the cable is at least evenly divided into 40 sections. The diameter of the arc of each section can be known according to the cable outer periphery profile data. The number of sections is determined according to the actual situation of the cable to be cut. The depth of a single cut is adjusted according to the diameter of each arc (when a single section is composed of multiple arcs or the diameter of a single section has multiple values, the depth of a single cut of the section is adjusted based on the smallest diameter to prevent excessive cutting from damaging the shielding layer of the cable). The process of negative feedback closed-loop control is as follows: the controller obtains the standard distance (the diameter of the arc) of the slider 12 through the cable periphery profile data; the controller adjusts the number of revolutions of the feed motor 11 according to the standard distance to drive the slider 12 to move; the second laser rangefinder 13 and the reflector 14 measure the actual distance moved by the slider 12, and transmit the actual distance to the controller; the controller calculates the difference between the actual distance and the standard distance, and uses the difference as the input of the negative feedback adjustment algorithm to calculate the moving distance that the slider 12 needs to adjust again, and so on, until the difference between the actual distance and the standard distance is less than the preset value. Preferably, the preset value is set to 0.05mm; this is beneficial to improving the accuracy of a single cut of the cutting circular saw 25 and the accuracy of cable cutting.

[0049] S6: The controller adjusts the feed motor 11 to return the cutting circular saw 25 to the initial position. The feed motor 11 drives the lead screw 10 to rotate, so that the slider 12 moves with the cutting circular saw 25 .

[0050] S7: The controller adjusts the driving component 6 according to the cable outer peripheral profile data, so that the rotating component 5 moves a step distance on the circular track 3, and the step distance corresponds to the length of each arc in step S7.

[0051] S8: Repeat steps S7 to S9 until the rotating assembly 5 moves one circle around the circular track 3 and returns to the zero position of the circular track 3.

[0052] When a single segment is composed of multiple arcs or the diameter of a single segment has multiple values, the depth of a single cut of the segment is adjusted based on the smallest diameter. After the cutting assembly rotates around the cable for one circle, the cable may not be completely cut off. However, because other single segments are completely cut off, and only a thin layer of the uncut part is not cut off, the cable can be pulled to both ends to completely disconnect the cutting layer of the cable.

Claims

1. A cable corrugated tube ring cutting device, comprising a housing (1) and a positioning assembly (2) coaxially arranged with the housing (1) for clamping and fixing the cable, characterized in that: The invention also comprises an annular track (3) coaxially arranged with the housing (1) and the positioning assembly (2) in sequence, a rotating assembly (5) rotatable along the annular track (3), a driving assembly (6) located in the housing (1) and used to drive the rotating assembly (5) to rotate, a moving assembly (7) connected to the rotating assembly (5) and used to adjust the radial feed depth, a cutting assembly located on the moving part of the moving assembly (7) and used to cut the cable, a first laser rangefinder (8) located on the moving part of the moving assembly (7) and used to measure the peripheral contour data of the cable, and a controller electrically connected to the driving assembly (6), the moving assembly (7), the cutting assembly and the first laser rangefinder (8).

2. The cable corrugated tube ring cutting device according to claim 1, characterized in that: The rotating assembly (5) comprises a wheel frame (15) and two wheels (16) symmetrically arranged and rotatably connected to the wheel frame (15), wherein the two wheels (16) are respectively clamped on the outer track and the inner track of the circular track (3) and are in rotational contact therewith, wherein the driving assembly (6) drives one wheel to rotate along the inner track of the circular track (3), and at the same time drives the other wheel to rotate along the outer track of the circular track (3) through the wheel frame (15).

3. The cable corrugated tube ring cutting device according to claim 2, characterized in that: The moving assembly (7) comprises two support blocks (9) fixedly connected to a wheel frame (15), a lead screw (10) rotatably mounted between the two support blocks (9), a feed motor (11) mounted on the wheel frame (15) and having an output shaft fixedly connected to the lead screw (10), a slider (12) threadedly connected to the outer periphery of the lead screw (10), a second laser rangefinder (13) mounted on one side of the upper support block (9), and a reflector (14) mounted on the slider (12) and cooperating with the second laser rangefinder (13) to measure the actual moving distance of the slider (12).

4. The cable corrugated tube ring cutting device according to claim 2, characterized in that: The wheel (16) has a Rockwell hardness of ≥55.

5. The cable corrugated tube ring cutting device according to claim 2, characterized in that: The driving assembly (6) comprises a driving motor (17) mounted inside the casing (1), a driving gear (18) fixedly connected to the output shaft of the driving motor (17), an annular tube (19) fixedly connected to the inner wall of the casing (1) and coaxially arranged with the annular track (3), a sun gear (20) rotatably mounted on the outer periphery of the annular tube (19) and meshingly connected with the driving gear (18), an inner gear (21) fixedly connected to the inner wall of the casing (1) and arranged on the outer periphery of the sun gear (20), a planetary gear (22) meshingly connected with the sun gear (20) and rotating along the inner teeth of the inner gear (21), and a driving shaft (23) fixedly connected to the central axis of the planetary gear (22), wherein one end of the driving shaft (23) away from the planetary gear (22) is fixedly connected to the central axis of a wheel (16) located on the inner track of the annular track (3).

6. The cable corrugated tube ring cutting device according to claim 3, characterized in that: The cutting assembly comprises a cutting circular saw (25) fixedly mounted on the bottom of a slide block (12) and a rotating motor (24) located on the slide block (12) and having an output shaft connected to the cutting circular saw (25).

7. The cable corrugated tube ring cutting device according to claim 1, characterized in that: The positioning assembly (2) comprises a support (26), a chuck body (28) fixedly connected to the support (26) and having a wire hole (27) at the center for the cable to pass through, a movable claw (29) slidably connected to a plurality of annular array grooves formed on the inner wall of the wire hole (27), and a claw driving mechanism (30) arranged on one side of the chuck body (28) for adjusting the movable claw (29) to clamp the cable.

8. The cable corrugated tube ring cutting device according to claim 7, characterized in that: It also includes a support rod (4), both ends and the middle of the support rod (4) are provided with threads, the chuck body (28) is provided with a plurality of through holes (31) distributed in a circular array, one end of the support rod (4) passes through the through hole (31) and is threadedly connected to a nut on the other side of the chuck body (28), the middle of the support rod (4) is threadedly connected to the housing (1), and the other end of the support rod (4) passes through the housing (1) and is threadedly connected to the annular track (3).

9. A control method for a cable corrugated tube ring cutting device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Adjust the cutting assembly to the zero position of the circular track (3); S2: The cable is clamped and fixed by the positioning component (2), and the cable and the cable corrugated tube ring cutting device are arranged coaxially; S3: driving the moving assembly (7) and the cutting assembly to rotate around the circular track (3) for one circle, so that the first laser rangefinder (8) scans the cable outer periphery profile data and transmits the cable outer periphery profile data to the controller; S4: Adjust the cutting assembly to the zero position of the circular track (3) again; S5: The controller adjusts the feed motor (11) to rotate according to the cable outer periphery profile data so that the slider (12) moves along the cable diameter direction. At the same time, the controller implements negative feedback closed-loop control of the moving distance of the slider (12), so that the slider (12) moves along the cable diameter direction with the cutting circular saw (25) to the maximum displacement position and rotates to cut the cable; S6: adjusting the feed motor (11) through the controller to return the cutting circular saw (25) to the initial position; S7: The controller adjusts the driving component (6) according to the cable outer peripheral profile data, so that the rotating component (5) moves a step distance on the circular track (3); S8: Repeat steps S5 to S7 until the rotating assembly (5) moves one circle around the circular track (3) and returns to the zero position of the circular track (3).

10. The control method of the cable corrugated tube ring cutting device according to claim 9, characterized in that: The specific steps for implementing the negative feedback closed-loop control in step S5 are: The controller obtains the standard distance moved by the slider (12) through the cable outer periphery profile data; The controller adjusts the number of revolutions of the feed motor (11) according to the standard distance, thereby driving the slider (12) to move; The second laser rangefinder (13) and the reflective sheet (14) measure the actual distance moved by the slider (12) and transmit the actual distance to the controller; The controller calculates the difference between the actual distance and the standard distance, and uses the difference as the input of the negative feedback adjustment algorithm to calculate the moving distance that the slider (12) needs to be adjusted again, and repeats this process until the difference between the actual distance and the standard distance is less than a preset value.

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