Cable cutting device

Abstract

The present invention belongs to the technical field of cutting metal wires, and specifically provides a cable cutting device for cutting continuous cables on a production line so that the subsequent winding machine can individually wind them into rolls. The cable cutting device includes a base, a lifting assembly, a guide assembly and a cutting assembly. The cable is passed through a guide channel formed by two guide assemblies, and the lifting frame can move up and down along the guide rod. When the winding machine winds the cable, the guide assembly and the cutting assembly both move up and down with the lifting frame. With such an arrangement, on the one hand, the front and rear guide assemblies can guide the cable to be wound on the winding machine, so that the roll is more neat and the appearance of the obtained cable roll is more beautiful. On the other hand, the cutting assembly can move with the lifting frame, and the length of the cutter only needs to be slightly larger than the diameter of the cable to ensure that the cable is smoothly cut. In this way, the materials originally required for manufacturing one tool can now be used to make multiple cutters, reducing the material cost of the cutter.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting metal wires, and in particular relates to a cable cutting device. Background Art

[0002] Cables are used to transmit electricity or information. Cables are rope-like wires made of several or several groups of metal wires twisted together. Each group of wires is insulated from each other and covered with a protective layer. The production and manufacturing of cables requires processes such as metal raw material smelting, wire drawing, insulation processing, cabling processing, and winding packaging. Since cables are produced continuously on the production line, in the packaging process, the cables first need to be wound into cable rolls on the winding equipment. When the cables are wound to a certain length, the cables are cut off and finally the cable rolls are wrapped or coated to complete the manufacturing of the cable products.

[0003] The cutting process is arranged before the winding and packaging process, and is used to cut the continuous cable to obtain a cable roll product of appropriate length. Since the cable will move along the axial direction of the cable roll when it is wound into a roll, when it is wound to a preset length, it is impossible to accurately judge the axial position of the cable relative to the cable roll. In order to ensure that the cutter can smoothly cut the cable, the length of the cutter needs to cover the moving range of the cable when cutting. In this way, the cutter needs to be designed to be longer, and more materials are required for manufacturing. Since the cutter is a wearing part, when there are cracks, curled blades, and other problems that affect the cutting quality, the cutter needs to be replaced in time. The shortcomings of the prior art are: since the length of the cutter in the prior art is longer, more materials are required to make the cutter, and frequent replacement of the cutter leads to higher material costs. Summary of the invention

[0004] The invention provides a cable cutting device, aiming to solve the problems in the prior art that the cutter used when cutting the cable is long and the material cost is high.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a cable cutting device, including a base, a lifting assembly, two guide assemblies and a cutting assembly. The base has a vertically arranged guide rod; the lifting assembly includes a lifting frame and a first driving member, the lifting frame is slidably matched with the guide rod, and the first driving member is arranged on the base, and is used to drive the lifting frame to reciprocate in the up and down directions; two guide assemblies are arranged at intervals along the conveying direction of the cable, and the guide assembly includes two guide wheels arranged opposite to each other up and down, and the wheel grooves of the two guide wheels enclose to form a guide channel for the cable to pass through; the cutting assembly includes a cutter and a second driving member, the cutter is arranged between the two guide assemblies, the cutting edge of the cutter faces the cable, and the second driving member is arranged on the lifting frame, and is used to drive the cutter to reciprocate along its own cutting edge.

[0006] In a possible implementation, the first driving member includes:

[0007] A screw rod is vertically arranged on the base, and the lifting frame is threadedly matched with the screw rod;

[0008] The first motor is arranged on the base and is used for driving the screw rod to rotate around its own axis.

[0009] In a possible implementation, the lifting assembly also includes a spring, which is arranged between the base and the lifting frame and is configured with a preload force to move the lifting frame upward; the first driving member includes a second motor, the second motor is arranged on the base, the output shaft of the second motor is connected to an eccentric wheel, and the outer peripheral surface of the eccentric wheel abuts against the top surface of the lifting frame.

[0010] In a possible implementation, the first driving member includes a vertically arranged hydraulic lifting rod, and the hydraulic lifting rod is connected to the lifting frame.

[0011] In a possible implementation, the cable cutting device further includes two clamping assemblies, the two clamping assemblies are arranged opposite to each other, the cutter is arranged between the two clamping assemblies, and the clamping assemblies have a clamping state for clamping the cable and a releasing state for releasing the cable.

[0012] In a possible implementation, the clamping assembly includes:

[0013] A sleeve is provided on the lifting frame and has an escape passage for the cable to pass through, the outer peripheral surface of the sleeve is tapered, and the small diameter ends of the sleeves of the two clamping assemblies are arranged adjacent to each other; the small diameter end of the sleeve is provided with an elastic compensation seam along its own axial direction, and a plurality of the elastic compensation seams are arranged at intervals along the circumference of the sleeve, and a clamping claw is formed between two adjacent elastic compensation seams;

[0014] An adjusting ring is slidably fitted on the outer circumference of the sleeve, and an inner hole of the adjusting ring is adapted to the outer circumference of the sleeve;

[0015] The third driving member is arranged on the lifting frame and is used for driving the corresponding adjusting ring to move back and forth along the axial direction of the sleeve.

[0016] In a possible implementation, a rubber protective layer is provided on a side of the small-diameter end of the clamping claw adjacent to the cable.

[0017] In a possible implementation, the clamping assembly further includes:

[0018] A cutting ring is rotatably arranged on the large diameter end of the sleeve and has a wire stripping knife that can be extended and retracted in the radial direction;

[0019] The fourth driving member is arranged on the sleeve and is used for driving the cutting wheel to rotate around its own axis.

[0020] In a possible implementation, the sleeve is slidably disposed on the lifting frame, and the clamping assembly further includes a fifth driving member, which is disposed on the lifting frame and is used to drive the sleeve to reciprocate along the conveying direction of the cable.

[0021] In a possible implementation manner, a plurality of guide rods are provided at intervals along the circumference of the lifting frame.

[0022] Compared with the prior art, the cable cutting device provided by the present invention has the following beneficial effects:

[0023] The cable cutting device provided by the present invention is used to cut the continuous cables on the production line so that the subsequent winding machine can wind them into rolls separately. The cable cutting device includes a base, a lifting assembly, a guide assembly and a cutting assembly. The cable is arranged in the guide channels of the two guide assemblies, the cutting edge of the cutter faces the cable, and the lifting frame of the lifting assembly can move up and down along the guide rod. When in use, the cable cutting device is installed in front of the winding machine of the cable production line. During the period when the winding machine winds the cable, the first driving member synchronously drives the lifting frame to move up and down. The two guide assemblies and the cutting assembly all move synchronously with the lifting frame. In this way, on the one hand, the lifting frame is provided with two front and rear guide assemblies, which can guide the cable to be wound on the winding machine, so that the cable is rolled more neatly, which helps to improve the winding quality of the cable roll, further facilitates the subsequent packaging machine packaging, and also makes the appearance of the packaged cable roll more beautiful. On the other hand, since the cutting assembly can move together with the lifting frame, the length of the cutter does not need to be set longer, and the length of the cutter only needs to be slightly larger than the diameter of the cable to ensure that the cable is cut smoothly. In this way, the material originally required for manufacturing one cutter can now be used to make multiple cutters, thereby reducing the material cost of the cutters. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a cable cutting device in the prior art;

[0025] Figure 2 A schematic diagram of the structure of a cable cutting device provided in an embodiment of the present invention Figure 1 ;

[0026] Figure 3 for Figure 2 A partial enlarged view of the middle A part;

[0027] Figure 4 A cross-sectional view of a cable cutting device provided by an embodiment of the present invention;

[0028] Figure 5A schematic diagram of the structure of a cable cutting device provided in an embodiment of the present invention Figure 2 ;

[0029] Figure 6 A schematic diagram of the structure of the clamping assembly provided in an embodiment of the present invention Figure 1 ;

[0030] Figure 7 A schematic diagram of the structure of the clamping assembly provided in an embodiment of the present invention Figure 2 ;

[0031] Figure 8 It is a schematic diagram of the structure of the cutting ring in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Cable cutting device; 10. Base; 11. Guide rod; 20. Lifting assembly; 21. Lifting frame; 22. Spring; 23. Second motor; 231. Eccentric wheel; 30. Cutting assembly; 31. Cutter; 32. Second driving member; 40. Clamping assembly; 41. Sleeve; 411. Elastic compensation seam; 42. Adjusting ring; 43. Third driving member; 44. Cutting ring; 441. Wire stripping knife; 45. Fourth driving member; 46. Fifth driving member; 50. Guide assembly; 51. Guide wheel; DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to", "fixed" or "fixedly disposed" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" or "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "set to" or "disposed on" another element, it may be directly on the other element or there may be a central element. "Multiple" refers to two or more quantities. "At least one" refers to one or more quantities. "Several" refers to one or more quantities.

[0036] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0037] Please also read Figures 1 to 8 , the cable cutting device 1 provided in an embodiment of the present invention is described below.

[0038] See also Figure 1 , which is a schematic diagram of the structure of a cable cutting device in the prior art, Figure 1 It can be seen that in the prior art, the installation height position of the cutter 31 is usually fixed. When the cable is wound into a roll by the cable winding equipment (winding and rolling machine), the cable will move back and forth up and down along the axis of the cable roll. After being wound to a preset length, the cable may stay at any position between the upper dead point and the lower dead point. In order to ensure that the cutter 31 can cut the cable smoothly, the length of the cutter 31 should be greater than the moving range of the cable. In this way, the cutter 31 needs to be designed to be longer, and the material cost is higher. Since the cutter 31 needs to cut the internal metal wire (usually made of copper or aluminum), the cutter 31 is easily damaged. When the blade of the cutter 31 has problems such as cracks and curled blades, it needs to be replaced in time, which brings a large maintenance cost burden to the cable manufacturer.

[0039] To solve the above technical problems, please refer to Figures 2 to 5 The embodiment of the present invention provides a cable cutting device 1, comprising a base 10, a lifting assembly 20, a cutting assembly 30 and a guide assembly 50. The base 10 has a vertically arranged guide rod 11; the lifting assembly 20 comprises a lifting frame 21 and a first driving member, the lifting frame 21 is slidably matched with the guide rod 11, and the first driving member is arranged on the base 10, and is used to drive the lifting frame 21 to reciprocate in the up and down directions; two guide assemblies 50 are arranged at intervals along the conveying direction of the cable, and the guide assembly 50 comprises two guide wheels 51 arranged opposite to each other up and down, and the wheel grooves of the two guide wheels 51 enclose a guide channel for the cable to pass through; the cutting assembly 30 comprises a cutter 31 and a second driving member 32, the cutter 31 is arranged between the two guide assemblies 50, the cutting edge of the cutter 31 faces the cable, and the second driving member 32 is arranged on the lifting frame 21, and is used to drive the cutter 31 to reciprocate in the direction of its own cutting edge.

[0040] The cable cutting device 1 provided in the embodiment of the present invention is used to cut the continuous cables on the production line so that the subsequent winding machine can wind them into rolls separately. The cable cutting device 1 includes a base 10, a lifting assembly 20, a guide assembly 50 and a cutting assembly 30. The cable is passed through the guide channels of the two guide assemblies 50, the cutting edge of the cutter 31 faces the cable, and the lifting frame 21 of the lifting assembly 20 can move up and down along the guide rod 11. When in use, the cable cutting device 1 is installed in front of the winding machine of the cable production line. During the period when the winding machine winds the cable, the first driving member synchronously drives the lifting frame 21 to move up and down. The two guide assemblies 50 and the cutting assembly 30 all move synchronously with the lifting frame 21. In this way, on the one hand, the lifting frame 21 is provided with two front and rear guide assemblies 50, which can guide the cable to be wound on the winding machine, so that it can be rolled more neatly, which helps to improve the winding quality of the cable roll, further facilitates the subsequent packaging machine packaging, and also makes the appearance of the packaged cable roll more beautiful. On the other hand, since the cutting assembly 30 can move together with the lifting frame 21, the length of the cutter 31 does not need to be set to be long, and the length of the cutter 31 only needs to be slightly larger than the diameter of the cable to ensure that the cable can be cut smoothly. In this way, the material originally required for manufacturing one cutter can now be used to manufacture multiple cutters 31, reducing the material cost of the cutter 31.

[0041] In the embodiment of the present invention, the base 10 is provided with a guide rod 11. One or more guide rods 11 can be provided as needed to guide the lifting frame 21 when it moves up and down. The base 10 can be fixed on the ground or other locations. The guide rod 11 is arranged vertically and can be installed and fixed by screw connection, welding, etc.

[0042] In the embodiment of the present invention, the lifting assembly 20 includes a lifting frame 21 and a first driving member, and components such as a guide wheel 51, a cutter 31 and a second driving member 32 are installed on the lifting frame 21 and can move up and down with the lifting frame 21. The first driving member can be a vertically arranged driving motor, an electric telescopic rod, a hydraulic lifting rod, etc.

[0043] The guide assembly 50 includes two guide wheels 51 arranged opposite to each other up and down, and the cable passes between the two guide wheels 51. The guide wheel 51 can be a driving wheel or a driven wheel. When the guide wheel 51 is a driving wheel, the guide wheel 51 is driven to rotate by a motor.

[0044] The cutting assembly 30 includes a cutter 31 and a second driving member 32. The cutter 31 is made of a tool material used for cutting cables in the prior art. The length of the cutting edge of the cutter 31 should be slightly larger than the diameter of the cable. The second driving member 32 is used to drive the cutter 31 to move back and forth. The cutter 31 can move in a vertical direction or in a horizontal direction. The user can select and set it according to the space layout.

[0045] In some possible embodiments, the first driving member includes a screw and a first motor. The screw is vertically arranged on the base 10, and the lifting frame 21 is threadedly matched with the screw; the first motor is arranged on the base 10, and is used to drive the screw to rotate around its own axis.

[0046] Considering that the lifting frame 21 needs to move back and forth, and the reciprocating stroke is short, when the screw rod and the first motor are used to drive the lifting frame 21 to move, the first motor needs to frequently switch the rotation direction, which can easily lead to a significant reduction in the service life of the motor. In order to solve this problem, the present invention also provides another form of lifting assembly 20, please refer to Figure 2 , Figure 4 and Figure 5 In some possible embodiments, the lifting assembly 20 further includes a spring 22, which is disposed between the base 10 and the lifting frame 21 and is configured with a preload force for moving the lifting frame 21 upward; the first driving member includes a second motor 23, which is disposed on the base 10, and an output shaft of the second motor 23 is connected to an eccentric wheel 231, and an outer peripheral surface of the eccentric wheel 231 abuts against a top surface of the lifting frame 21.

[0047] In this embodiment, a spring 22 is provided at the bottom of the lifting frame 21, and the lifting frame 21 is driven to move up and down by the second motor 23 and the eccentric wheel 231. The rotation direction of the second motor 23 can remain unchanged. When working, the second motor 23 rotates at a constant speed, which is more conducive to the second motor 23 to obtain a longer service life.

[0048] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 In some possible embodiments, the cable cutting device 1 further includes two clamping assemblies 40, the two clamping assemblies 40 are arranged opposite to each other, the cutter 31 is arranged between the two clamping assemblies 40, and the clamping assembly 40 has a clamping state for clamping the cable and a releasing state for releasing the cable.

[0049] In this embodiment, the clamping assembly 40 is used to clamp and fix the cable during cutting, so that the cutter 31 can better cut the cable and also help to obtain a better cable cutting surface. The clamping assembly 40 can use a fixture that can fix and clamp a circular workpiece in the prior art. When cutting is required, the winding device is first stopped and the cable is in a static state. Then the clamping assembly 40 clamps and fixes the cable. Finally, the second driving member 32 drives the cutter 31 to move and cut the cable.

[0050] When the cable is cut, it will be subjected to the shear force from the cutter 31. When the outer protective sheath of the cable is soft, the cable is easily deformed by the force, and the end face of the cable obtained by cutting is easy to become oblate. The cable with deformed end cannot be directly used for quality testing or wiring. During testing or wiring, the deformed end needs to be cut off and re-stripped, which is inconvenient.

[0051] To solve the above problems, see Figure 2 , Figure 3 , Figure 6 and Figure 7 In some possible embodiments, the clamping assembly 40 includes a sleeve 41, an adjustment ring 42 and a third driving member 43. The sleeve 41 is provided on the lifting frame 21 and has an escape passage for the cable to pass through. The outer circumference of the sleeve 41 is conical, and the small diameter ends of the sleeves 41 of the two clamping assemblies 40 are arranged adjacent to each other; the small diameter end of the sleeve 41 is provided with an elastic compensation slit 411 along its own axial direction, and a plurality of elastic compensation slits 411 are arranged at intervals along the circumference of the sleeve 41, and a clamping claw is formed between two adjacent elastic compensation slits 411; the adjustment ring 42 is slidably matched with the outer circumference of the sleeve 41, and the inner hole of the adjustment ring 42 is adapted to the outer circumference of the sleeve 41; the third driving member 43 is provided on the lifting frame 21, and is used to drive the corresponding adjustment ring 42 to reciprocate along the axial direction of the sleeve 41.

[0052] In this embodiment, the clamping assembly 40 includes a sleeve 41, an adjustment ring 42 and a third driving member 43. The sleeve 41 is conical and made of a material with a certain elastic deformation ability (such as spring steel, carbon steel, etc.). The adjustment ring 42 is sleeved on the outer circumference of the sleeve 41. When the third driving member 43 drives the adjustment ring 42 to move toward the large diameter end of the sleeve 41, the adjustment ring 42 applies pressure to the sleeve 41 in the radial direction. Under the pressure of the adjustment ring 42, the multiple clamping claws gather together to clamp and fix the cable.

[0053] In this embodiment, the plurality of clamping claws can limit the entire outer circumference of the cable at the cutting position, so that the cable section obtained after cutting will not change direction significantly, the cut section is circular, the cutting effect is better, and it can be directly used for testing or wiring. After the cutting is completed, the cutter 31 is reset, and the adjustment ring 42 moves toward the small diameter end of the sleeve 41, and the clamping claws return to their original state under the action of their own elastic force, and the clamping claws release the cable.

[0054] In some possible embodiments, a rubber protective layer is provided on one side of the small diameter end of the clamping claw adjacent to the cable. The rubber protective layer can increase the friction when clamping the cable, making the cable less likely to loosen; and can protect the cable sheath to prevent scratches or damage.

[0055] During the production of cables, it is necessary to take samples from the production line for random inspection and test the relevant parameters of the cables. The cable cutting equipment in the prior art often only cuts the cable, and the inspector needs to remove the cable end again and then peel off the outer protective sheath for wiring. When laying actual power lines, operators also need to peel off the outer protective sheath of the cable terminal first.

[0056] To automatically remove the outer sheath of the cable end, refer to Figure 3 , Figure 7 and Figure 8 In some possible embodiments, the clamping assembly 40 further includes a cutting ring 44 and a fourth driving member 45. The cutting ring 44 is rotatably disposed at the large diameter end of the sleeve 41 and has a wire stripping knife 441 that can be extended and retracted in the radial direction; the fourth driving member 45 is disposed on the sleeve 41 and is used to drive the cutting ring 44 to rotate around its own axis.

[0057] In this embodiment, the clamping assembly 40 further includes a cutting ring 44 and a fourth driving member 45. When the cable is cut, the cutting rings 44 and the fourth driving member 45 of the two clamping assemblies 40 act synchronously, the wire stripping knife 441 of the cutting ring 44 extends, and the fourth driving member 45 drives the cutting ring 44 to rotate at least one circle, so that the outer protective sheath of the cable can be stripped off, providing convenience for inspectors or cable laying personnel. When the outer sheath of the cable end is cut off in a ring shape, the stripped protective sheath can be removed from the cable end manually, or it can be removed automatically by a robot.

[0058] The cutting ring 44 has a retractable wire stripping knife 441. The cutting ring 44 has two working modes. One is that the wire stripping knife 441 is directly extended to the depth required for wire stripping, and the fourth driving member 45 only needs to drive the cutting ring 44 to rotate one circle to successfully complete the wire stripping. The other is that the fourth driving member 45 drives the cutting ring 44 to rotate multiple circles, and the wire stripping knife 441 gradually extends during the rotation of the cutting ring 44, and finally reaches the depth required for wire stripping. The above two working modes can be selected and set by the user according to needs.

[0059] The fourth driving member 45 is used to drive the cutting ring 44 to rotate. The fourth driving member 45 can realize power transmission by gear meshing, belt drive, chain drive, etc., and can smoothly drive the cutting ring 44 to rotate. The wire stripping knife 441 is telescopically arranged in the cutting ring 44 along the radial direction of the cutting ring 44, and the extension and retraction of the wire stripping knife 441 can be realized by an electric telescopic rod, a gear motor mechanism, a screw drive mechanism, etc.

[0060] See also Figure 5 In some possible embodiments, the sleeve 41 is slidably disposed on the lifting frame 21, and the clamping assembly 40 further includes a fifth driving member 46, which is disposed on the lifting frame 21 and is used to drive the sleeve 41 to reciprocate along the conveying direction of the cable.

[0061] In this embodiment, the clamping assembly 40 also includes a fifth driving member 46, which is used to drive the two sleeves 41 to move back and forth along the conveying direction of the cable, and can automatically remove the peeled cable outer protective skin. The specific working principle is: when the cable is cut, the cutting ring 44 peels off the cable outer protective skin from the required position, and then the cutter 31 is reset, and the adjustment ring 42 is appropriately moved to the small diameter end of the sleeve 41. At this time, the clamping assembly 40 is still in a clamping state, but the clamping force becomes smaller, so that when the clamping assembly 40 clamps the cut cable outer protective skin, the cable can be smoothly pulled out.

[0062] In the above clamping state, first, the cable winding device continues to operate, and the cable to be wound is pulled out from the clamping assembly 40, and the cut cable outer protective sheath remains in the clamping assembly 40, and the cable outer protective sheath is separated from the cable. Then the fifth drive member 46 drives the two sleeves 41 to move in the direction of the cable winding device, driving the outer protective sheath on the rear cable to separate from the cable end, completing the automatic removal of the protective sheath. After the operation is completed, each action mechanism is reset, and the operator rewinds the rear cable on the winding device and winds the cable again. The fifth drive member 46 can be an electric telescopic rod, a pneumatic push rod, etc. arranged in the horizontal direction.

[0063] It can be understood that the various parts in the above-mentioned embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the specification of the present invention has recorded various combination embodiments and can support different combination embodiments.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable cutting device, characterized in that: include: A base having a vertically disposed guide rod; A lifting assembly, comprising a lifting frame and a first driving member, wherein the lifting frame is slidably matched with the guide rod, and the first driving member is arranged on the base and is used to drive the lifting frame to reciprocate in an up-and-down direction; Two guide assemblies are arranged at intervals along the conveying direction of the cable, and the guide assemblies include two guide wheels arranged opposite to each other up and down, and the wheel grooves of the two guide wheels enclose a guide channel for the cable to pass through; as well as A cutting assembly, comprising a cutter and a second driving member, wherein the cutter is arranged between the two guide assemblies, the cutting edge of the cutter faces the cable, and the second driving member is arranged on the lifting frame and is used to drive the cutter to reciprocate along the cutting edge of the cutter; The cable cutting device further comprises two clamping assemblies, the two clamping assemblies are arranged opposite to each other, the cutter is arranged between the two clamping assemblies, and the clamping assemblies have a clamping state for clamping the cable and a releasing state for releasing the cable; The clamping assembly comprises: A sleeve is provided on the lifting frame and has an escape passage for the cable to pass through, the outer peripheral surface of the sleeve is tapered, and the small diameter ends of the sleeves of the two clamping assemblies are arranged adjacent to each other; the small diameter end of the sleeve is provided with an elastic compensation seam along its own axial direction, and a plurality of the elastic compensation seams are arranged at intervals along the circumference of the sleeve, and a clamping claw is formed between two adjacent elastic compensation seams; an adjusting ring, slidably fitted on the outer circumference of the sleeve, wherein the inner hole of the adjusting ring is adapted to the outer circumference of the sleeve; and A third driving member, provided on the lifting frame, for driving the corresponding adjusting ring to reciprocate along the axial direction of the sleeve; The lifting assembly further includes a spring, which is disposed between the base and the lifting frame and is configured with a preload force for moving the lifting frame upward; the first driving member includes a second motor, which is disposed on the base, and an eccentric wheel is connected to an output shaft of the second motor, and an outer peripheral surface of the eccentric wheel abuts against a top surface of the lifting frame; When in use, the cable cutting device is installed in front of the winding machine of the cable production line. When the winding machine is winding the cable, the first driving member synchronously drives the lifting frame to move up and down reciprocatingly; The clamping assembly also includes: A cutting ring is rotatably disposed on the large diameter end of the sleeve and has a wire stripping knife that can be extended and retracted in the radial direction; and A fourth driving member, provided on the sleeve, for driving the cutting ring to rotate around its own axis; The sleeve is slidably disposed on the lifting frame, and the clamping assembly further comprises a fifth driving member, which is disposed on the lifting frame and is used to drive the sleeve to reciprocate along the conveying direction of the cable; While the cable is being cut, the cutting ring peels off the outer protective sheath of the cable from the required position, and then the cutter is reset, and the adjusting ring moves a suitable distance toward the small diameter end of the sleeve. At this time, the clamping assembly is still in a clamping state, but the clamping force becomes smaller; in the above clamping state, first the cable winding device continues to operate, and the cable to be wound is pulled out of the clamping assembly, and the cut outer protective sheath of the cable remains in the clamping assembly, and the outer protective sheath of the cable is separated from the cable; then the fifth driving member drives the two sleeves to move in the direction of the cable winding device, driving the outer protective sheath on the rear cable to separate from the cable end.

2. The cable cutting device according to claim 1, characterized in that: A rubber protective layer is provided on one side of the small diameter end of the clamping claw adjacent to the cable.

3. The cable cutting device according to claim 1, characterized in that: A plurality of guide rods are arranged at intervals along the circumference of the lifting frame.

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