Auxiliary ring cutting machine for cable installation

Abstract

The invention relates to the technical field of cable installation and processing, in particular to an auxiliary ring cutting machine for cable installation, which comprises a first clamp for fixedly clamping a cable; the girdling assembly is used for girdling the cable; the second clamp is mounted on the side, away from the first clamp, of the girdling assembly; the two transverse cutting assemblies are located on one side of the second clamp and used for transversely cutting the insulating layer of the cable; according to the cable insulation layer cutting device, a cable insulation layer to be cut is transversely cut through the transverse cutting assembly, after transverse cutting is finished, the second clamp can be pushed inwards, so that the second clamp is close to the second ring frame, then the insulation layer to be cut is fixedly clamped through the second clamp, and then girdling can be conducted along a transverse cut through the girdling knife; after the insulating layer is cut off, the second clamp generates certain displacement under the elastic force effect of the reset spring, at the moment, ring cutting can be stopped, and the cable can easily fall off from the cable after passing through the transverse cutting insulating layer.

Description

Technical Field

[0001] The invention relates to the technical field of cable installation and processing, and in particular to an auxiliary circular cutting machine for cable installation. Background Art

[0002] A cable is a device for transmitting electrical energy or signals. It is usually a rope-like cable made up of several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center wire. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside.

[0003] When installing or connecting cables, since the insulation layer on the surface of the cable is not conductive, the insulation layer at the tail end needs to be removed so that the internal wires can contact and connect with each other before power can be supplied. When removing the insulation layer of the cable, peeling equipment is required.

[0004] At present, the work of ring cutting the insulation layer of high-voltage cables is mainly done manually by staff. However, the manual cutting process not only consumes manpower and material resources, but also the products cut by different staff cannot be standardized. There are large differences between the products cut by skilled staff and novices, which will affect the subsequent grinding of the high-voltage cable insulation layer. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide an auxiliary circular cutting machine for cable installation.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An auxiliary circular cutting machine for cable installation, comprising:

[0008] A first clamp is used for fixing and clamping the cable. A first ring frame for the cable to pass through is arranged in the first clamp, and a movable end of the first clamp extends into the first ring frame;

[0009] A ring cutting assembly is used for ring cutting the cable, a second ring frame is arranged on one side of the first ring frame, and the ring cutting assembly is arranged on the second ring frame;

[0010] A second clamp is installed on a side of the ring cutting assembly away from the first clamp, and is used to fix and clamp the cable head, and the structure of the second clamp is the same as that of the first clamp;

[0011] Two cross-cutting assemblies, located on one side of the second clamp, for cross-cutting the insulation layer of the cable;

[0012] The driving assembly is used for driving the cross-cutting assembly to slide along the cable.

[0013] Furthermore, the first clamp includes a crossbeam, a bidirectional threaded rod is rotatably arranged inside the crossbeam, a handle is arranged at one end of the bidirectional threaded rod, vertical plates are sleeved at both ends of the bidirectional threaded rod, connecting rods are welded on the vertical plates, and a clamp located in the first ring frame is arranged at one end of the connecting rod away from the vertical plate.

[0014] Furthermore, a guide assembly is also provided in the first clamp, and a receiving groove for receiving the guide assembly is provided in the clamping plate.

[0015] Furthermore, the guide assembly includes a guide roller clamped on the cable, a fixed frame is provided on the clamping plate, a limit rod is slidably provided in the fixed frame, and the limit rod passes through the fixed frame and is connected to the guide roller, a limit plate is also provided in the fixed frame and is sleeved on the limit rod, and a limit spring is provided between the limit plate and the fixed frame and is sleeved on the limit rod.

[0016] Furthermore, a ring groove is provided in the second ring frame, a ring tooth is rotatably arranged in the ring groove, the ring cutting assembly is fixed on the ring tooth, and a driving gear meshing with the ring tooth is also provided on the second ring frame.

[0017] Furthermore, the ring cutting assembly includes a first mounting frame fixed on the ring teeth, a first screw is rotatably arranged in the first mounting frame, a lifting block is sleeved on the first screw, a ring cutting knife is slidably arranged on the lifting block, and a limit assembly for limiting the movement of the ring cutting knife is also provided on the first mounting frame.

[0018] Furthermore, the limit assembly includes slide rails arranged on both side walls of the first mounting frame, a limit slider is slidably arranged on the slide rails, and a gear baffle is arranged between the two limit sliders.

[0019] Furthermore, the cross-cutting assembly includes a miniature telescopic rod, a connecting frame is provided on the top of the miniature telescopic rod, and the miniature telescopic rod is connected to the driving assembly through the connecting frame, a roller is provided at the movable end of the miniature telescopic rod, a second mounting frame is provided on one side of the roller, a cross-cutting knife is provided in the second mounting frame, a cylinder is installed on the top of the second mounting frame, a first baffle is fixedly provided on the top of the cross-cutting knife, the movable end of the cylinder is connected to the first baffle, and the cross-cutting knife is also provided with a second baffle located at the bottom of the second mounting frame.

[0020] Furthermore, the driving assembly includes a guide rail installed on the second ring frame, a second lead screw is rotatably arranged in the guide rail, a transverse block is mounted on the second lead screw, the bottom of the transverse block is connected to the connecting frame, and a transmission wheel connected to the second lead screw is also arranged at one end of the guide rail away from the second ring frame, and a transmission belt is mounted on the two transmission wheels.

[0021] Furthermore, a fixed base is provided at the bottom of the first clamp and the second clamp, a guide rod is provided in the fixed base, a reset spring is sleeved on the guide rod, and the second clamp is slidably connected to the fixed base via the reset spring.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention is provided with a cross-cutting component and a ring-cutting component. After one end of the cable is extended into the two ring frames, the cable is clamped by the first clamp, the guide roller is firstly made to be close to the cable, and then the cable is slowly pulled to adjust the length to be peeled. After the adjustment is completed, the first clamp is further adjusted so that the guide roller is retracted into the clamping plate, and the clamping plate is clamped on the cable to form a fixation. At this time, the insulation layer of the cable to be cut off is first cross-cut by the cross-cutting component. After the cross-cutting is completed, the second clamp can be pushed inward so that the second clamp is close to the second ring frame, and then the insulation layer to be cut off is fixedly clamped by the second clamp, and then the ring cutting knife can be used to perform ring cutting along the cross-cut incision. After the insulation layer is cut off, the second clamp will produce a certain displacement under the elastic force of the reset spring. At this time, the ring cutting can be stopped, and the insulation layer has been cross-cut and can be easily removed from the cable.

[0024] 2. The present invention is provided with an adjustable cross-cutting knife and a circular cutting knife. When cross-cutting, the cross-cutting knife is first extended into the cable, and the thickness of the insulating layer is determined according to the amount of the cross-cutting knife extended. Then, when circular cutting, the circular cutting knife also moves slowly inward to gradually cut off the insulating layer, and a limit assembly for limiting the movement of the circular cutting knife is provided on the first mounting frame. According to the determined thickness, the position of the gear baffle is adjusted, and after the lifting block contacts the gear baffle, it stops moving downward, thereby protecting the cable core and preventing the circular cutting knife from damaging the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic diagram of the connection between the second clamp and the fixed base of the present invention;

[0028] Figure 3 is a schematic structural diagram of a first clamp of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the guide assembly of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the second ring frame of the present invention;

[0031] Figure 6It is a structural schematic diagram of the ring cutting machine of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the cross-cutting machine of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the drive assembly of the present invention.

[0034] In the figure: 1, first ring frame; 2, first clamp; 21, crossbeam; 22, bidirectional threaded rod; 23, handle; 24, vertical plate; 25, connecting rod; 26, clamping plate; 261, storage groove; 27, guide assembly; 271, guide roller; 272, fixed frame; 273, limit rod; 274, limit plate; 275, limit spring; 3, second ring frame; 31, ring gear; 32, driving gear; 4, ring cutting assembly; 41, first mounting frame; 42, first lead screw; 43, lifting block; 4 4. Circular cutting knife; 45. Slide rail; 46. Limiting slider; 47. Shift baffle; 5. Second clamp; 6. Cross-cutting assembly; 61. Micro telescopic rod; 62. Roller; 63. Second mounting bracket; 64. Cross-cutting knife; 65. Cylinder; 66. First baffle; 67. Second baffle; 68. Connecting bracket; 7. Driving assembly; 71. Guide rail; 72. Second lead screw; 73. Transverse block; 74. Transmission wheel; 75. Transmission belt; 8. Fixed base; 81. Guide rod; 82. Reset spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] Reference Figure 1-Figure 8 As shown, an auxiliary circular cutting machine for cable installation comprises:

[0038] The first clamp 2 is used for fixing and clamping the cable. The first clamp 2 is provided with a first ring frame 1 for the cable to pass through. The movable end of the first clamp 2 extends into the first ring frame 1. The cable is first inserted into the first ring frame 1, and then the cable can be fixed and clamped by the first clamp 2.

[0039] The ring cutting assembly 4 is used to perform ring cutting on the cable. A second ring frame 3 is arranged on one side of the first ring frame 1. The ring cutting assembly 4 is arranged on the second ring frame 3. The cable will then pass through the second ring frame 3. Then, the length of the cable is adjusted to move the position to be cut under the ring cutting assembly 4.

[0040] The second clamp 5 is installed on the side of the ring cutting component 4 away from the first clamp 2, and is used to fix and clamp the cable head. The structure of the second clamp 5 is the same as that of the first clamp 2. The second clamp 5 is located behind the ring cutting component 4, and its function is the same as that of the first clamp 2, which is to fix and clamp the cable;

[0041] Two cross-cutting components 6, located on one side of the second clamp 5, for cross-cutting the insulation layer of the cable;

[0042] The driving component 7 is used to drive the cross-cutting component 6 to slide along the cable. Before the ring cutting, the cables on the upper and lower sides are first cross-cut, that is, the cross-cutting component 6 is first moved to the position of the ring cutting component 4 by the driving component 7, and then the cross-cutting component 6 is moved backward along the cable to cross-cut the insulation layer to be cut off, so as to facilitate the separation of the insulation layer.

[0043] In one embodiment, the first clamp 2 includes a crossbeam 21, a bidirectional threaded rod 22 is rotatably arranged in the crossbeam 21, a handle 23 is arranged at one end of the bidirectional threaded rod 22, vertical plates 24 are sleeved at both ends of the bidirectional threaded rod 22, a connecting rod 25 is welded on the vertical plate 24, and a clamping plate 26 located in the first ring frame 1 is arranged at one end of the connecting rod 25 away from the vertical plate 24;

[0044] After the cable is inserted along the first ring frame 1, the handle 23 can drive the bidirectional threaded rod 22 to rotate, so that the vertical plates 24 at both ends move inward at the same time, allowing the two clamps 26 to fix and clamp the cable, and the structure of the second clamp 5 is the same as this.

[0045] In one embodiment, a guide assembly 27 is further provided in the first clamp 2, and a receiving groove 261 for receiving the guide assembly 27 is provided in the clamp 26. The guide assembly 27 can be received in the receiving groove 261. At the beginning, the cable is clamped by the guide assembly 27. This is to facilitate the adjustment of the length of the cable. After the length of the cable is adjusted, the first clamp 2 can be tightened to allow the two clamps 26 to continue to move inward, so that the guide assembly 27 can be received in the receiving groove 261. At this time, the clamp 26 can be close to the surface of the cable to fix and clamp the cable.

[0046] In one embodiment, the guide assembly 27 includes a plurality of guide rollers 271 clamped on the cable, the guide rollers 271 are arranged on the inner side of the clamping plate 26, and on each clamping plate 26, the guide rollers 271 are symmetrically arranged at both ends of the clamping plate 26 with the center line of the connecting rod 25 as the symmetry axis. A clamping block for clamping the guide rollers 271 may be provided on the guide rollers 271, wherein the guide rollers 271 may be multiple and arranged side by side, and it is ensured that the clamping block and the guide rollers 271 can be stored in the storage groove 261 when moving inward, and a fixing frame 272 corresponding to the guide rollers 271 is provided on the rear side of the clamping plate 26, and a limiting rod 273 is slidably provided in the fixing frame 272, and one end of the limiting rod 273 passes through the fixing frame 272. The limiting rod 273 extends into the receiving groove 261 and is connected to the clamping block. The other end of the limiting rod 273 can also penetrate the fixing frame 272 and extend upward. A limiting plate 274 sleeved on the limiting rod 273 is also provided in the fixing frame 272. When the limiting rod 273 slides, the limiting plate 274 can also slide in the fixing frame 272. A limiting spring 275 sleeved on the limiting rod 273 is provided between the limiting plate 274 and the fixing frame 272. After the guide roller 271 is received in the receiving groove 261, the limiting spring 275 will be compressed by the limiting plate 274. After the cable is pulled out, the guide roller 271 will move inward under the elastic force of the limiting spring 275 and extend out of the receiving groove 261.

[0047] When clamping the first clamp 2, the guide roller 271 will first clamp on the cable to perform preliminary clamping of the cable, and then adjust the extension of the cable according to the length of the insulation layer that needs to be cut off by pulling the cable. After the adjustment is completed, the bidirectional threaded rod 22 can continue to be rotated to make the two clamps 26 continue to move inward. At this time, the guide roller 271 will push the limit rod 273 backward, so that the limit rod 273 drives the limit plate 274 to compress the limit spring 275, so that the guide roller 271 is retracted into the storage groove 261, allowing the clamp 26 to clamp on the surface of the cable to complete the fixation.

[0048] In one embodiment, the cross-cutting assembly 6 includes a miniature telescopic rod 61, a connecting frame 68 is provided at the top of the miniature telescopic rod 61, and the miniature telescopic rod 61 is connected to the driving assembly 7 through the connecting frame 68, a roller 62 is provided at the movable end of the miniature telescopic rod 61, a second mounting frame 63 is provided on one side of the roller 62, a cross-cutting knife 64 is provided in the second mounting frame 63, the bottom of the cross-cutting knife 64 is flush with the bottom of the roller 62, a cylinder 65 is installed on the top of the second mounting frame 63, a first baffle 66 is fixedly provided at the top of the cross-cutting knife 64, the movable end of the cylinder 65 is connected to the first baffle 66, and the cross-cutting knife 64 is also sleeved with a second baffle 67 located at the bottom of the second mounting frame 63;

[0049] After the cable is fixed, it is necessary to cross-cut the insulating layer on the surface of the cable. First, the cross-cutter 64 is moved to the bottom of the ring-cutting component 4, and then the roller 62 is pushed to move by the micro-telescopic rod 61, so that the upper and lower rollers 62 clamp the cable, and the tip of the cross-cutter 64 is against the insulating layer on the surface of the cable. Then, the cross-cutter 64 is slowly pushed by the cylinder 65, so that the cross-cutter 64 gradually extends into the insulating layer. Due to the difference in hardness between the cable core and the insulating layer, when the cross-cutter 64 cannot move forward, the cylinder 65 stops pushing the cross-cutter 64, and then the specific thickness of the insulating layer is determined according to the extension amount of the cross-cutter 64, so as to facilitate the subsequent limitation of the ring-cutting knife 44. At this time, the roller 62 is pulled to move by the driving component 7, and the two rollers 62 form a certain clamping effect and can straighten the cable, so that the cutting can be kept smoother and the cable core can be avoided from being cut crooked or damaged. In this way, the cutting can be cut all the way to the end.

[0050] In one embodiment, the driving assembly 7 includes a guide rail 71 mounted on the second ring frame 3, a second lead screw 72 is rotatably arranged in the guide rail 71, a traverse block 73 is sleeved on the second lead screw 72, the bottom of the traverse block 73 is connected to the connecting frame 68, and a transmission wheel 74 connected to the second lead screw 72 is further arranged at one end of the guide rail 71 away from the second ring frame 3, a transmission belt 75 is sleeved on the two transmission wheels 74, and a motor for driving is arranged on one of the transmission wheels 74;

[0051] The transmission wheel 74 is driven by a motor, and the transmission belt 75 drives another transmission wheel 74 to rotate together, thereby driving the two second lead screws 72 to rotate together, allowing the two transverse blocks 73 to move synchronously in the guide rail 71, driving the two cross-cutting components 6 to move together.

[0052] In one embodiment, a ring groove is provided in the second ring frame 3, a ring gear 31 is rotatably provided in the ring groove, the ring cutting assembly 4 is fixed on the ring gear 31, and a driving gear 32 meshing with the ring gear 31 is also provided on the second ring frame 3, and a motor for driving the driving gear 32 to rotate is provided at the rear end of the driving gear 32;

[0053] By rotating the active gear 32, the ring gear 31 can be driven to rotate in the second ring frame 3, thereby driving the ring cutting component 4 to rotate and ring cutting the cable. A plurality of ring cutting components 4 can be provided, and a plurality of ring cutting components 4 are distributed in a circular array on the ring gear 31 to improve the efficiency of ring cutting.

[0054] In one embodiment, the ring cutting component 4 includes a first mounting frame 41 fixed on the ring gear 31, a first screw 42 is rotatably arranged in the first mounting frame 41, a motor for driving the first screw 42 to rotate is arranged at one end of the first screw 42, a lifting block 43 is sleeved on the first screw 42, a ring cutting knife 44 is slidably arranged on the lifting block 43, and a slide table can be provided, mainly to allow the ring cutting knife 44 to move inward first so that the tip of the knife contacts the insulating layer. Since the slide table is provided, a fixing mechanism is also required to fix the ring cutting knife 44. This fixing mechanism can be a simple buckle structure, etc. A limiting component for limiting the movement of the ring cutting knife 44 is also provided on the first mounting frame 41;

[0055] After the cable is cross-cut, it can be ring-cut. First, move the ring cutter 44 downward so that the tip of the ring cutter 44 contacts the surface of the insulating layer, and the contact point is the end of the cross-cut cutting surface. Then fix the ring cutter 44. Next, according to the thickness of the insulating layer obtained during the previous cross-cutting, move the limit assembly so that the distance moved by the ring cutter 44 is the thickness of the insulating layer. At this time, with the continuous rotation of the ring tooth 31, the first screw 42 will also start, so that the lifting block 43 moves downward along the first screw 42. The lifting block 43 drives the ring cutter 44 to gradually move inward to cut off the insulating layer. After the lifting block 43 contacts the limit assembly, the first screw 42 will stop rotating, preventing the ring cutter 44 from continuing to move inward, thereby preventing the ring cutter 44 from damaging the cable core.

[0056] In one embodiment, the limiting assembly includes a slide rail 45 disposed on both side walls of the first mounting frame 41, a limiting slider 46 is slidably disposed on the slide rail 45, and a gear baffle 47 is disposed between the two limiting sliders 46;

[0057] The gear baffle 47 extends into the first mounting frame 41, and is mainly used to block the lifting block 43. When cross-cutting, the actual thickness of the insulating layer has been obtained, and the tip of the circular cutting knife 44 also rests on the insulating layer. At this time, the gear baffle 47 can be moved downward, and the moving distance is the thickness of the insulating layer, so that the circular cutting knife 44 can be limited.

[0058] In one embodiment, a fixed base 8 is provided at the bottom of the first clamp 2 and the second clamp 5, a guide rod 81 is provided in the fixed base 8, a return spring 82 is sleeved on the guide rod 81, and the second clamp 5 is slidably connected to the fixed base 8 through the return spring 82;

[0059] Before ring cutting, the second clamp 5 should clamp the cable, and when clamping, first push the second clamp 5 so that the second clamp 5 is close to the second ring frame 3, and the second clamp 5 will compress the reset spring 82, and then the second clamp 5 will fix and clamp the cable; after completing these, the cable will be ring cut, and during ring cutting, the insulating layer to be removed will separate from the cable core. At this time, the second clamp 5 will move backward under the elastic force of the reset spring 82, resulting in a certain displacement, which means that the ring cutting is completed; here, since the cross-cutting has been carried out before, the insulating layer will easily move after the ring cutting is completed; at the same time, a displacement sensor for detecting the displacement of the second clamp 5 can be set on the guide rail 71, and after detecting the displacement of the second clamp 5, the displacement sensor will turn off the rotation of the ring tooth 31 and stop cutting.

[0060] 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An auxiliary circular cutting machine for cable installation, characterized in that: include: A first clamp (2) is used for fixing and clamping the cable. A first ring frame (1) for the cable to pass through is arranged in the first clamp (2), and a movable end of the first clamp (2) extends into the first ring frame (1); A ring cutting assembly (4) is used for ring cutting a cable, wherein a second ring frame (3) is arranged on one side of the first ring frame (1), and the ring cutting assembly (4) is arranged on the second ring frame (3); A second clamp (5) is installed on a side of the ring cutting assembly (4) away from the first clamp (2) and is used to fix and clamp the cable head. The structure of the second clamp (5) is the same as that of the first clamp (2); Two cross-cutting assemblies (6), located on one side of the second clamp (5), for cross-cutting the insulation layer of the cable; The driving assembly (7) is used to drive the cross-cutting assembly (6) to slide along the cable.

2. The auxiliary circular cutting machine for cable installation according to claim 1, characterized in that: The first clamp (2) comprises a crossbeam (21), a bidirectional threaded rod (22) is rotatably arranged inside the crossbeam (21), a handle (23) is arranged at one end of the bidirectional threaded rod (22), vertical plates (24) are sleeved at both ends of the bidirectional threaded rod (22), a connecting rod (25) is welded to the vertical plate (24), and a clamping plate (26) located in the first ring frame (1) is arranged at one end of the connecting rod (25) away from the vertical plate (24).

3. The auxiliary circular cutting machine for cable installation according to claim 2, characterized in that: A guide assembly (27) is also provided in the first clamp (2), and a receiving groove (261) for receiving the guide assembly (27) is provided in the clamping plate (26).

4. The auxiliary circular cutting machine for cable installation according to claim 3, characterized in that: The guide assembly (27) comprises a guide roller (271) clamped on the cable, a fixing frame (272) is arranged on the clamping plate (26), a limit rod (273) is slidably arranged in the fixing frame (272), and the limit rod (273) passes through the fixing frame (272) and is connected to the guide roller (271), a limit plate (274) sleeved on the limit rod (273) is also arranged in the fixing frame (272), and a limit spring (275) sleeved on the limit rod (273) is arranged between the limit plate (274) and the fixing frame (272).

5. The auxiliary circular cutting machine for cable installation according to claim 1, characterized in that: The second ring frame (3) is provided with a ring groove in which a ring tooth (31) is rotatably arranged. The ring cutting assembly (4) is fixed on the ring tooth (31). The second ring frame (3) is also provided with a driving gear (32) meshing with the ring tooth (31).

6. The auxiliary circular cutting machine for cable installation according to claim 5, characterized in that: The ring cutting assembly (4) comprises a first mounting frame (41) fixed on the ring gear (31), a first lead screw (42) rotatably arranged in the first mounting frame (41), a lifting block (43) sleeved on the first lead screw (42), a ring cutting knife (44) slidably arranged on the lifting block (43), and a limit assembly for limiting the movement of the ring cutting knife (44) is also provided on the first mounting frame (41).

7. The auxiliary circular cutting machine for cable installation according to claim 6, characterized in that: The position limiting assembly comprises a slide rail (45) arranged on two side walls of the first mounting frame (41), a position limiting slider (46) is slidably arranged on the slide rail (45), and a gear baffle (47) is arranged between the two position limiting sliders (46).

8. The auxiliary circular cutting machine for cable installation according to claim 1, characterized in that: The cross-cutting assembly (6) comprises a micro telescopic rod (61), a connecting frame (68) is arranged at the top of the micro telescopic rod (61), and the micro telescopic rod (61) is connected to the driving assembly (7) through the connecting frame (68), a roller (62) is arranged at the movable end of the micro telescopic rod (61), a second mounting frame (63) is arranged on one side of the roller (62), a cross-cutting knife (64) is arranged in the second mounting frame (63), a cylinder (65) is arranged at the top of the second mounting frame (63), a first baffle (66) is fixedly arranged at the top of the cross-cutting knife (64), the movable end of the cylinder (65) is connected to the first baffle (66), and the cross-cutting knife (64) is also sleeved with a second baffle (67) located at the bottom of the second mounting frame (63).

9. The auxiliary circular cutting machine for cable installation according to claim 8, characterized in that: The driving assembly (7) comprises a guide rail (71) mounted on the second ring frame (3), a second lead screw (72) being rotatably arranged in the guide rail (71), a transverse movement block (73) being sleeved on the second lead screw (72), the bottom of the transverse movement block (73) being connected to the connecting frame (68), a transmission wheel (74) connected to the second lead screw (72) being further arranged at one end of the guide rail (71) away from the second ring frame (3), and a transmission belt (75) being sleeved on the two transmission wheels (74).

10. The auxiliary circular cutting machine for cable installation according to claim 1, characterized in that: A fixed base (8) is provided at the bottom of the first clamp (2) and the second clamp (5), a guide rod (81) is provided inside the fixed base (8), a return spring (82) is sleeved on the guide rod (81), and the second clamp (5) is slidably connected to the fixed base (8) via the return spring (82).

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