A high-precision adjustable cable cutting device

Abstract

The application discloses a high-precision adjustable cable cutting device and relates to the technical field of cable cutting.The traction mechanism comprises an alternate replacement assembly and a swing replacement clamp assembly.The swing replacement clamp assembly comprises a ball head column fixed on a cutting mechanism, a rotating roller rotatably arranged on a rack, an eccentric wheel fixed at the bottom of the rotating roller, a rack long plate movably arranged on the rack, a gear meshingly arranged at both ends of the rack long plate and two groups of replacement swing plates symmetrically arranged on the rack.The application integrates auxiliary actions such as returning and re-clamping into the parallel process of the resetting of the cutting mechanism and the next traction, so that only two effective actions of "traction" and "cutting" are reserved in each cycle, and the remaining auxiliary steps are completed synchronously with the two actions, thereby significantly reducing the time occupied by the back-and-forth resetting of the clamp plate, improving the cutting operation efficiency and realizing high-efficiency continuous cutting.

Description

Technical Field

[0001] This invention relates to the field of cable cutting technology, specifically to a high-precision adjustable cable cutting device. Background Technology

[0002] Cables, as crucial carriers of power transmission and information communication, are widely used in various engineering constructions and wire harness processing fields. In practical applications, they often need to be cut to specific lengths. Commercially available cable cutting devices typically consist of a conveyor at one end, a cutting blade in the middle, and a traction machine at the other end. During operation, the conveyor continuously feeds the cable in the cutting direction. The clamping plate in the traction machine first clamps the cable end, then pulls the cable to the preset length. The cutting blade then performs the cutting operation. After cutting, the clamping plate releases the severed cable and returns to its initial position, clamping the new end again to begin the next cycle. This process repeats continuously to achieve precise, fixed-length cutting.

[0003] Existing cable cutting devices typically offer advantages such as automated cable feeding, fixed-length cutting, and continuous operation, which improves cutting accuracy to some extent. However, in actual operation, the time required for the cutting blade to perform the cutting action is extremely short, while the clamping plate in the traction machine must go through a complete cycle of clamping the cable end, stretching it to the preset length, returning to the initial position after cutting, and clamping a new end again. This back-and-forth movement and clamping / releasing operation occupy most of the entire work cycle. Because the cutting process is very time-consuming, the efficiency bottleneck of the entire cable cutting operation is mainly concentrated in the auxiliary actions of the clamping plate, resulting in a slow overall cutting cycle and making it difficult to meet the demands of high-volume, high-paced production.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing high-precision adjustable cable cutting device. Summary of the Invention

[0005] The present invention addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. Specifically, the purpose of the present invention is to provide a high-precision adjustable cable cutting device to solve the problem mentioned in the background art that the efficiency bottleneck of the entire cable cutting operation is mainly concentrated on the auxiliary action of the clamping plate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-precision adjustable cable cutting device, comprising a frame and a cutting mechanism disposed in the middle of the frame, and further comprising: A traction mechanism mounted on the frame; The traction mechanism includes an alternating displacement assembly and a swing clamp changing assembly; The alternation assembly includes a transmission assembly mounted on the frame and a clamping assembly mounted on the transmission assembly; The swing clamp changing assembly includes a ball head column fixed on the cutting mechanism, a rotating roller rotatably mounted on the frame, an eccentric wheel fixed at the bottom of the rotating roller, a rack plate movably mounted on the frame, gears meshing at both ends of the rack plate, and two sets of shifting swing plates symmetrically mounted on the frame. The roller surface is provided with a guide groove, which consists of two sets of spiral grooves with the same inclination angle and parallel to each other and two sets of symmetrically distributed straight grooves. The two ends of the straight grooves connect the beginning and end of the two sets of spiral grooves respectively. One end of the ball head column is movably inserted into the guide groove. The inclination angle and inclination direction of the two sets of the shifting swing plates are the same. The cutting mechanism moves upward and resets, driving the rotating roller to rotate. The eccentric wheel moves the rack plate laterally, forcing the shifting swing plate to change direction. The clamping states of the two sets of clamping components are quickly switched, that is, from one clamped and one tight to one tight and one open. The cut cable is released simultaneously and the next end is clamped. Then, the cable is pulled again under the drive of the transmission component.

[0007] Preferably, the cutting mechanism consists of two sets of symmetrically distributed electric push rods and cutters respectively fixed on the piston ends of the two sets of electric push rods, with a gap between the two sets of cutters, and one side of one set of cutters is fixedly connected to the other end of the ball head column; The transmission assembly consists of two symmetrically distributed sets of sprockets, a chain meshing on the two sets of sprockets, and a drive motor; Two sets of sprockets are located on both sides of the cutting mechanism. The chain is suspended on the frame and is staggered with the cutting mechanism so that they do not contact each other.

[0008] Preferably, the clamping components are provided in two sets, and the two sets of clamping components are symmetrically staggered. The clamping assembly includes a fixed point block, which is fixedly connected to the chain in the transmission assembly via a connector; The fixed block has two sets of symmetrically distributed second connecting rods hinged at both ends. The second connecting rod is configured as an L-shaped bending structure, and the other end of the second connecting rod is configured as an arc-shaped clamping plate structure.

[0009] Preferably, a guide rod is movably inserted in the middle of the fixed point block, and a ball bearing is rotatably provided at one end of the guide rod, with one end of the guide rod close to the surface of the shifting swing plate; A spring is movably sleeved on the outer surface of the guide rod, and the two ends of the spring are fixedly connected to one side of the fixed block and the other end of the guide rod, respectively.

[0010] Preferably, the other end of the guide rod is hinged with two sets of first connecting rods that are symmetrically distributed, and the other end of the first connecting rod is hinged to the middle of the second connecting rod. The first connecting rod is set to be inclined.

[0011] Preferably, the swing clamp changing assembly further includes a roller rotatably mounted on the rack plate; The rollers are arranged in two symmetrically distributed groups, the distance between the two groups of rollers is greater than the length of the eccentric wheel, the two groups of rollers are located on both sides of the eccentric wheel, and the rollers are at the same height as the eccentric wheel. The top surface of the rack plate is fixedly provided with two sets of symmetrically distributed limiting rods, and both sets of limiting rods are horizontally inserted into the frame.

[0012] Preferably, one end of the ball head post is provided with a rolling ball, and the size of the rolling ball is adapted to the guide groove, and the rolling ball rolls in the guide groove.

[0013] Preferably, the gears are provided in two symmetrically distributed sets; Each set of gears is fixedly connected to the top of one end of each set of shifting swing plates.

[0014] Preferably, four sets of arc-shaped limiting plates are fixed on the frame, and every two sets of arc-shaped limiting plates are symmetrically distributed at the bottom of each set of shifting swing plates; The axis of the arc-shaped limiting plate and the axis of the gear are located on the same horizontal plane.

[0015] Preferably, the surface of the arc-shaped limiting plate is provided with an arc-shaped sliding groove, and the bottom of the shifting swing plate is provided with a pulley adapted to the size of the arc-shaped sliding groove; The pulley slides inside the arc-shaped groove, and the curvature of the arc-shaped groove is consistent with the trajectory curvature of the transposition swing plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the alternating pulling and synchronous clamping of two sets of clamping components to create a highly efficient and continuous cutting cycle. As one set of clamping components clamps the cable end and pulls it to a preset length, the chain synchronously drives the other set of clamping components to move towards the starting end to prepare for receiving the next segment. After cutting, the inevitable upward reset of the cutting mechanism, through the cooperation of the ball joint and the spiral groove of the rotating roller, causes the two sets of switching swing plates to synchronously reverse direction, thereby driving the clamping states of the two sets of clamping components to instantly switch—the original pulling end releases the cut cable, and the originally preparing end synchronously clamps the next segment. This clamping process is completed synchronously with the reset action of the cutting mechanism, without consuming additional time. After the clamping is completed, i.e., after the cutting mechanism has completely reset, the transmission component immediately starts, and the two sets of clamping components move in opposite directions. In this way, compared with the traditional device that needs to complete the serial operation mode of "clamping - pulling - cutting - releasing - retraction - reclamping" in sequence, the present invention integrates auxiliary actions such as retraction and reclamping into the parallel process of the cutting mechanism reset and the next pulling, so that each cycle retains only the two effective actions of "pulling" and "cutting", and the other auxiliary steps are completed synchronously with the two, thereby significantly reducing the time occupied by the clamping plate resetting back and forth, improving the cutting operation efficiency, and realizing high-efficiency continuous cutting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the fourth three-dimensional structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the fifth three-dimensional structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the working state structure of the present invention.

[0023] Figure 7 This is a side view of the structure of the present invention in its working state.

[0024] Figure 8 This is a partial structural diagram of the present invention.

[0025] Figure 9 This is a partial frontal view of the structure of the present invention.

[0026] Figure 10 This is a partial structural diagram of the present invention.

[0027] Figure 11 This is a partial structural diagram of the present invention.

[0028] Figure 12 This is a schematic diagram of the rotating roller and ball head column structure of the present invention.

[0029] Figure 13 This is a schematic diagram of the rotating roller and ball head column structure of the present invention.

[0030] Figure 14 This is a schematic diagram of the clamping component of the present invention in the released state.

[0031] Figure 15 This is a schematic diagram of the clamping state structure of the clamping component of the present invention.

[0032] Figure 16 This is a schematic diagram of the disassembled state of the clamping component and the transmission component of the present invention.

[0033] In the diagram: 1. Frame; 2. Cutting mechanism; 3. Transmission assembly; 4. Clamping assembly; 41. Fixed point block; 42. Guide rod; 43. Spring; 44. Link 1; 45. Link 2; 5. Shifting swing plate; 6. Arc-shaped limiting plate; 7. Rotary roller; 8. Eccentric wheel; 9. Roller; 10. Limiting rod; 11. Rack plate; 12. Gear; 13. Ball head column; 14. Connecting component. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 16 The present invention provides a technical solution: a high-precision adjustable cable cutting device, comprising a frame 1 and a cutting mechanism 2 disposed in the middle of the frame 1, and further comprising: A traction mechanism mounted on frame 1; In specific implementation, the frame 1 includes components such as a cable feeding mechanism, a fixed frame, and a slide rail. The slide rail provides conditions for the smooth movement of the cutter. The arc-shaped limiting plate 6, the rotating roller 7, and the limiting rod 10 are all mounted on the fixed frame. The arc-shaped limiting plate 6 is immovable and only provides support and limitation for the shifting swing plate 5. The rotating roller 7 can only rotate when the cutter resets, and the limiting rod 10 can only move horizontally when the rotating roller 7 rotates. The cable feeding mechanism can be consistent with existing technology, and will not be elaborated upon here. It should be noted that the cable outlet of the cable feeding mechanism is aligned with the arc-shaped clamping plate structure of the clamping assembly 4 to ensure that the cable can pass through the middle of the arc-shaped clamping plate structure.

[0036] The traction mechanism includes an alternating displacement assembly and a swing clamp changing assembly; The replacement assembly includes a transmission assembly 3 mounted on the frame 1 and a clamping assembly 4 mounted on the transmission assembly 3; The swing clamp changing assembly includes a ball head column 13 fixed on the cutting mechanism 2, a rotating roller 7 rotatably mounted on the frame 1, an eccentric wheel 8 fixed at the bottom of the rotating roller 7, a rack plate 11 movably mounted on the frame 1, gears 12 meshing at both ends of the rack plate 11, and two sets of shifting swing plates 5 symmetrically mounted on the frame 1. The surface of the rotating roller 7 is provided with a guide groove. The guide groove consists of two sets of spiral grooves with the same inclination angle and parallel to each other and two sets of symmetrically distributed straight grooves. The two ends of the straight grooves connect the beginning and end of the two sets of spiral grooves respectively. One end of the ball head column 13 is movably inserted into the guide groove. The inclination angle and inclination direction of the two sets of shifting swing plates 5 are the same. In specific implementation, as shown in the appendix Figure 9 As shown, this invention takes the ball-end column 13 fixed to the upper cutter as an example. When the upper cutter presses down to cut, the ball-end column 13 moves down synchronously along the inside of the straight groove. At this time, the rotating roller 7 does not rotate, and the clamping state of the two sets of clamping components 4 remains unchanged during the cutting process. When the cutting is completed and the upper cutter moves up to reset, the ball-end column 13 slides along the spiral groove. Since the ball-end column 13 can only move vertically, it is affected by the trajectory of the spiral groove, and the rotating roller 7 is forced to rotate until the cutter is completely reset. At this time, the eccentric wheel 8 has rotated 180 degrees with the rotating roller 7, and the protrusion of the eccentric wheel 8 has completely reversed direction, causing the rack plate 11 to move laterally. Thus, the existing driving force of the cutter movement is used to change the tilt direction of the shifting swing plate 5. It should be noted here that, as shown in the attached... Figure 13 As shown, the bottom of the straight groove and the starting end of the spiral groove are structurally directly connected, and this connection is designed as a one-way passage structure. That is, the straight groove and the spiral groove form a path fork at this intersection point. When the ball head column 13 moves downward, it slides into the intersection point along the straight groove. However, the upper side wall of the straight groove at this intersection point smoothly transitions into the starting end of the spiral groove. The return path of the straight groove is at an angle to the rolling ball movement direction of the ball head column 13, so that when the ball head column 13 moves upward to reset, it cannot return along the original path of the straight groove, but can only slide along the guiding direction of the spiral groove, thereby forcing the rotating roller 7 to rotate. Conversely, when the ball head column 13 moves downward, it is blocked by the side wall of the spiral groove and cannot enter the spiral groove, but can only slide down along the straight groove. Thus, through the path selection design at the intersection of the straight groove and the spiral groove, differentiated motion control can be achieved, where the ball head column 13 does not drive the rotating roller 7 when moving downward, but forces the rotating roller 7 to rotate when moving upward.

[0037] The cutting mechanism 2 moves upward and resets, driving the rotating roller 7 to rotate. The eccentric wheel 8 moves the rack plate 11 laterally, forcing the shifting swing plate 5 to change direction. The clamping states of the two sets of clamping components 4 are quickly exchanged, that is, from one clamped and one tight to one tight and one open. The cut cable is released simultaneously and the next end is clamped. Then, the cable is pulled again under the drive of the transmission component 3.

[0038] The cutting mechanism 2 consists of two sets of symmetrically distributed electric push rods and cutters fixed on the piston ends of the two sets of electric push rods respectively. There is a gap between the two sets of cutters, and one side of one set of cutters is fixedly connected to the other end of the ball head column 13. The transmission assembly 3 consists of two symmetrically distributed sets of sprockets, a chain meshing on the two sets of sprockets, and a drive motor; Two sets of sprockets are located on both sides of the cutting mechanism 2, and the chain is suspended on the frame 1. The chain and the cutting mechanism 2 are staggered and do not contact each other.

[0039] In specific implementation, as shown in the appendix Figure 8 As shown, the chain, apart from engaging with the sprocket, does not contact any other components, ensuring unimpeded operation of the transmission assembly 3. The fixed frame in the machine frame 1 provides space for the chain and clamping assembly 4 to pass through. Since the new end of the cable is always near the cable exit point on one side of the cutter when it is cut, the clamping assembly 4 needs to pass between the two sets of cutters to clamp the cable end. Therefore, the chain needs to traverse the cutting position to ensure that the clamping assembly 4 can reach the cable end.

[0040] Two sets of clamping components 4 are provided, and the two sets of clamping components 4 are symmetrically staggered. The clamping assembly 4 includes a fixing block 41, which is fixedly connected to the chain in the transmission assembly 3 via a connector 14; In specific implementation, as shown in the attached diagram, the ball-head post 13, the connecting piece 14, and the attached... Figure 15As shown, the connector 14 facilitates the assembly and disassembly of the clamping assembly 4. In practice, the length of the cable to be cut may vary depending on different needs. If the cutting length needs adjustment, it is necessary to reprogram the number of rotations of the drive motor in the transmission assembly 3 and adjust the distance between the two sets of clamping assemblies 4. Specifically, before cutting begins, one set of clamping assemblies 4 must be positioned near the cable outlet (the starting end of the length calculation) and in a clamped state, while the other set of clamping assemblies 4, located away from the cable outlet (the ending end of the length calculation), is positioned relaxed. At this time, the ball joint 13 is positioned in the straight groove, waiting to slide down. The drive motor reciprocates in both forward and reverse directions according to the set number of rotations. For example, one rotation of the drive motor moves the clamping assembly 4 by ten centimeters. If a length of twenty centimeters needs to be cut, the drive motor is controlled to rotate two rotations. After cutting, the drive motor is controlled to reverse two rotations, and so on. This is a well-known control method in the industry and a necessary operating procedure for existing traction devices. Refer to existing technology; this invention will not elaborate further. When one side of the chain moves one set of clamping components 4 near the cable outlet and pulls the cable, the other side of the chain moves another set of clamping components 4 towards the cable outlet. When one set of clamping components 4 pulls the cable end to the calculated length, the other set of clamping components 4 reaches the calculated length's starting point. This process repeats. Therefore, the distance between the two sets of clamping components 4 must be consistent with the required cutting length. The connector 14 should not be fixed at the chain bend, i.e., around the sprocket, to prevent obstructing the operation of the transmission component 3. The connector 14 is existing technology; this invention only provides a simplified illustration. A suitable model can be selected based on the chain shape and other specific conditions.

[0041] The fixed block 41 has two sets of symmetrically distributed second connecting rods 45 hinged at both ends. The second connecting rods 45 are configured as L-shaped bending structures, and the other end of the second connecting rods 45 is configured as an arc-shaped clamping plate structure.

[0042] In specific implementation, as shown in the appendix Figure 9 As shown, the arc-shaped clamping plate structures in both sets of clamping components 4 need to be aligned with the cable. During the horizontal movement of the two sets of clamping components 4, they will overlap. When the two sets of clamping components 4 overlap, the second connecting rods 45 will be misaligned because they are in a state of tension and loosening. It can be simply understood that two sets of second connecting rods 45 expand to their maximum, while the other two sets of second connecting rods 45 come together, and the other two sets of second connecting rods 45 will pass through the middle of the two sets of second connecting rods 45. Therefore, the two sets of clamping components 4 will not collide when they move.

[0043] A guide rod 42 is movably inserted in the middle of the fixed block 41, and a ball is rotatably provided at one end of the guide rod 42. One end of the guide rod 42 is close to the surface of the shifting swing plate 5. A spring 43 is movably sleeved on the outer surface of the guide rod 42, and the two ends of the spring 43 are fixedly connected to one side of the fixed block 41 and the other end of the guide rod 42, respectively.

[0044] The other end of the guide rod 42 is hinged to two symmetrically distributed sets of first connecting rods 44, and the other end of the first connecting rod 44 is hinged to the middle of the second connecting rod 45. The first connecting rod 44 is set in an inclined position.

[0045] In specific implementation, as shown in the attached ball head column 13 and the attached connector 14, the tilt angle and direction of the two sets of shifting swing plates 5 are consistent, which means that one set of shifting swing plates 5 will inevitably approach one set of clamping components 4 and press against one set of guide rods 42, causing the guide rods 42 to push one end of the first connecting rod 44 towards the arc-shaped clamping plate structure. The spring 43 is stretched, while the first connecting rod 44 and the second connecting rod 45 are mutually constrained. The first connecting rod 44 is forced to rotate, and drives the second connecting rod 45 to rotate synchronously. The two sets of second connecting rods 45 expand and loosen the cable, while the other set of shifting swing plates 5 leaves the other set of clamping components 4. The other set of guide rods 42 loses the squeezing force of the shifting swing plates 5. Under the rebound action of the spring 43, one end of the first connecting rod 44 is pulled back, thereby driving the two sets of arc-shaped clamping plate structures to center and tighten. When the tilting directions of the two sets of transposition swing plates 5 change synchronously, one of the previously expanding clamping components 4 will lose the squeezing and pushing force of the transposition swing plates 5 and thus tighten. The other set of clamping components 4 will do the opposite, achieving the purpose of alternating tension and loosening of the two sets of clamping components 4. It should be noted that, due to the difference in outer diameter of cables of different specifications, the elastic force of the spring 43 is required to adapt to the size of the cable. The elastic force of the spring 43 cannot resist the squeezing and pushing force of the transposition swing plates 5, but it must be able to clamp and pull the cable. With the assistance of the cable feeding mechanism, the clamping and pulling of the cable by the clamping components 4 will not consume a lot of clamping force; the elastic force of the spring 43 is sufficient.

[0046] The swing clamp changing assembly also includes a roller 9 that is rotatably mounted on the rack plate 11; The rollers 9 are arranged in two symmetrically distributed sets. The distance between the two sets of rollers 9 is greater than the length of the eccentric wheel 8. The two sets of rollers 9 are located on both sides of the eccentric wheel 8, and the height of the rollers 9 and the eccentric wheel 8 is the same. Two sets of symmetrically distributed limiting rods 10 are fixedly installed on the top surface of the rack plate 11. Both sets of limiting rods 10 are horizontally inserted into the frame 1.

[0047] In specific implementation, taking the perspective shown in the attached diagram of the rack and pinion plate 11 as an example, due to the influence of the guide groove on the rotating roller 7, the cutting mechanism 2 can only drive the eccentric wheel 8 to rotate 180 degrees each time it resets. The eccentric wheel 8 remains stationary when the cutting mechanism 2 moves downwards to cut. That is, the eccentric wheel 8 pushes one set of rollers 9 to the far right and remains stationary until the cutting mechanism 2 finishes cutting and moves upwards to reset. Then, the eccentric wheel 8 pushes the other set of rollers 9 to the far left and remains stationary. This cycle repeats, using the rotation of the eccentric wheel 8 to achieve the left-right lateral movement of the two sets of rollers 9. The rollers 9 drive the rack and pinion plate 11 to move synchronously left and right, allowing the two sets of gears 12 to mesh and rotate simultaneously and in the same direction, ultimately achieving the reciprocating oscillation of the two sets of shifting swing plates 5. The limiting rod 10 provides an important condition for the horizontal movement of the rollers 9 and the rack and pinion plate 11. It should be noted that the size of the eccentric wheel 8 must be set to meet the requirement that the two sets of clamping components 4 will inevitably tighten and loosen after each reversal swing of the two sets of swing plates 5.

[0048] One end of the ball head post 13 is provided with a ball, and the size of the ball is adapted to the guide groove, and the ball rolls in the guide groove.

[0049] Gear 12 is provided in two symmetrically distributed sets; Each set of gears 12 is fixedly connected to the top of one end of each set of shifting swing plates 5.

[0050] Four sets of arc-shaped limiting plates 6 are fixed on the frame 1, with two sets of arc-shaped limiting plates 6 symmetrically distributed at the bottom of each set of shifting swing plates 5; The axis of the arc-shaped limiting plate 6 and the axis of the gear 12 are located on the same horizontal plane.

[0051] The surface of the arc-shaped limiting plate 6 is provided with an arc-shaped sliding groove, and the bottom of the shifting swing plate 5 is provided with a pulley that matches the size of the arc-shaped sliding groove; The pulley slides inside the arc-shaped groove, and the curvature of the arc-shaped groove is consistent with the trajectory curvature of the transposition swing plate 5.

[0052] In practice, the top of the shifting swing plate 5 is constrained by the gear 12 and the rack plate 11, while the bottom is constrained by the arc-shaped groove and the pulley. It can only perform reciprocating swinging motion within a predetermined range, and it rotates and swings around the axis of the gear 12. It should be noted that when the cutting mechanism 2 has not moved up to reset, that is, when the cutting operation is not completed, the eccentric wheel 8 is necessarily in the state of pushing a set of rollers 9. In other words, even if the spring 43 tries to push the shifting swing plate 5 away, it is restricted by the strong force from the eccentric wheel 8. The gear 12 cannot rotate to drive the rack plate 11 to move laterally. Therefore, the elastic force of the spring 43 is insufficient to push the shifting swing plate 5 away.

[0053] Working Principle: When using this high-precision adjustable cable cutting device, first adjust the installation position of the two sets of clamping components 4 on the chain according to the required cutting length, and use the connector 14 to fix the two sets of clamping components 4 to the chain, so that the distance between the two sets of clamping components 4 is equal to the single cutting length. At the same time, ensure that the set of clamping components 4 at the starting end clamps the cable end, and the set of clamping components 4 at the ending end remains loose. Start the transmission component 3, and the chain drives the clamping components 4 to move synchronously in the opposite direction. The set of clamping components 4 in the clamping state pulls the cable to the preset length, while the set of clamping components 4 in the loose state moves towards the starting end to prepare to receive the next end. After the cable is in place, the transmission component 3 pauses, and the cutting mechanism 2 presses down to cut. At this time, the ball head column 13 moves down along the straight groove section of the rotating roller 7, the rotating roller 7 does not rotate, the eccentric wheel 8 remains in place, and the clamping state of the two sets of clamping components 4 remains unchanged, ensuring stable cutting.

[0054] After cutting is completed, the cutting mechanism 2 moves upward and resets. The ball head column 13 enters the spiral groove section from the straight groove section. Since the ball head column 13 can only move vertically, it is forced by the spiral groove to rotate the roller 7 by 180 degrees. The eccentric wheel 8 rotates 180 degrees synchronously, and its protruding end changes from one side to the other side, which moves the roller 9 on the other side and pushes the rack plate 11 to move laterally. The gears 12 meshing at both ends of the rack plate 11 rotate synchronously in the same direction, which drives the two sets of shifting swing plates 5 to swing synchronously. The pulley at the bottom of the shifting swing plate 5 slides along the arc-shaped groove, so that the tilt direction and angle of the two sets of shifting swing plates 5 change synchronously. Subsequently, the clamping assembly 4, which was originally pressed tightly against the guide rod 42 by the shifting swing plate 5, loses its squeezing force as the shifting swing plate 5 swings away. The guide rod 42 returns to its original position under the rebound of the spring 43, causing the first connecting rod 44 to pull back, aligning and closing the two sets of second connecting rods 45, and clamping the cable with the arc-shaped clamping plate structure. Meanwhile, the other clamping assembly 4, which was not initially pushed, is pushed forward by the shifting swing plate 5, causing the guide rod 42 to move forward. The spring 43 is stretched, and the first connecting rod 44 pushes the two sets of second connecting rods 45 to expand outward, releasing the cut cable with the arc-shaped clamping plate structure. Thus, the clamping states of the two sets of clamping assemblies 4 are instantly reversed, from one clamped and one tight to one tight and one clamped, simultaneously releasing the cut cable and clamping the next cable end.

[0055] This completes one cutting cycle. Subsequently, the transmission assembly 3 restarts, and the chain drives the two sets of clamping assemblies 4 to continue moving in opposite directions. The set of clamping assemblies 4 that has clamped the next end pulls the new end towards the termination end, while the set of clamping assemblies 4 that has released the cut cable moves towards the starting end. In this way, the cutting mechanism 2 periodically presses down to cut and moves up to reset, coordinating with the intermittent operation of the transmission assembly 3, driving the two sets of clamping assemblies 4 to alternately perform clamping, pulling, releasing, and resetting actions, achieving continuous automatic cyclic cutting.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-precision adjustable cable cutting device, comprising a frame (1) and a cutting mechanism (2) disposed in the middle of the frame (1), characterized in that, Also includes: A traction mechanism mounted on the frame (1); The traction mechanism includes an alternating displacement assembly and a swing clamp changing assembly; The replacement assembly includes a transmission assembly (3) mounted on the frame (1) and a clamping assembly (4) mounted on the transmission assembly (3). The swing clamp changing assembly includes a ball head column (13) fixed on the cutting mechanism (2), a rotating roller (7) rotatably set on the frame (1), an eccentric wheel (8) fixed at the bottom of the rotating roller (7), a rack plate (11) movably set on the frame (1), gears (12) meshing at both ends of the rack plate (11), and two sets of shifting swing plates (5) symmetrically set on the frame (1). The roller (7) has a guide groove on its surface. The guide groove consists of two sets of spiral grooves with the same inclination angle and parallel to each other and two sets of straight grooves that are symmetrically distributed. The two ends of the straight grooves connect the beginning and end of the two sets of spiral grooves respectively. One end of the ball head column (13) is movably inserted into the guide groove. The inclination angle and inclination direction of the two sets of the shifting swing plates (5) are the same. The cutting mechanism (2) moves upward and resets, driving the rotating roller (7) to rotate. The eccentric wheel (8) moves the rack plate (11) laterally, forcing the shifting swing plate (5) to change direction. The clamping states of the two sets of clamping components (4) are quickly exchanged, that is, from one clamped and one tight to one tight and one open. The cut cable is released simultaneously and the next end is clamped. Then, the cable is pulled again under the drive of the transmission component (3).

2. The high-precision adjustable cable cutting device according to claim 1, characterized in that: The cutting mechanism (2) consists of two sets of symmetrically distributed electric push rods and cutters fixed on the piston ends of the two sets of electric push rods respectively. There is a gap between the two sets of cutters, and one side of one set of cutters is fixedly connected to the other end of the ball head column (13). The transmission assembly (3) consists of two symmetrically distributed sets of sprockets, a chain meshing on the two sets of sprockets, and a drive motor; Two sets of sprockets are located on both sides of the cutting mechanism (2). The chain is suspended on the frame (1). The chain and the cutting mechanism (2) are staggered and do not contact each other.

3. The high-precision adjustable cable cutting device according to claim 1, characterized in that: The clamping components (4) are provided in two sets, and the two sets of clamping components (4) are symmetrically staggered. The clamping assembly (4) includes a fixing block (41), which is fixedly connected to the chain in the transmission assembly (3) via a connector (14); The fixed block (41) has two sets of second connecting rods (45) symmetrically distributed at both ends. The second connecting rod (45) is configured as an L-shaped bending structure, and the other end of the second connecting rod (45) is configured as an arc-shaped clamping plate structure.

4. The high-precision adjustable cable cutting device according to claim 3, characterized in that: A guide rod (42) is movably inserted in the middle of the fixed block (41), and a ball is rotatably provided at one end of the guide rod (42). One end of the guide rod (42) is close to the surface of the shifting swing plate (5). A spring (43) is movably sleeved on the outer surface of the guide rod (42), and the two ends of the spring (43) are fixedly connected to one side of the fixed block (41) and the other end of the guide rod (42), respectively.

5. The high-precision adjustable cable cutting device according to claim 4, characterized in that: The other end of the guide rod (42) is hinged on both sides with two sets of first connecting rods (44) symmetrically distributed, and the other end of the first connecting rod (44) is hinged to the middle of the second connecting rod (45). The first connecting rod (44) is set in an inclined position.

6. The high-precision adjustable cable cutting device according to claim 1, characterized in that: The swing clamp changing assembly also includes a roller (9) that is rotatably mounted on the rack plate (11). The rollers (9) are provided in two symmetrically distributed sets. The distance between the two sets of rollers (9) is greater than the length of the eccentric wheel (8). The two sets of rollers (9) are located on both sides of the eccentric wheel (8). The rollers (9) are at the same height as the eccentric wheel (8). The top surface of the rack plate (11) is fixedly provided with two sets of symmetrically distributed limiting rods (10), and both sets of limiting rods (10) are horizontally inserted into the frame (1).

7. The high-precision adjustable cable cutting device according to claim 1, characterized in that: One end of the ball head post (13) is provided with a ball, and the size of the ball is adapted to the guide groove. The ball rolls in the guide groove.

8. The high-precision adjustable cable cutting device according to claim 1, characterized in that: The gear (12) is provided in two symmetrically distributed sets; Each set of gears (12) is fixedly connected to the top of one end of each set of shifting swing plates (5).

9. A high-precision adjustable cable cutting device according to claim 1, characterized in that: Four sets of arc-shaped limiting plates (6) are fixed on the frame (1), and two sets of arc-shaped limiting plates (6) are symmetrically distributed at the bottom of each set of shifting swing plates (5); The axis of the arc-shaped limiting plate (6) and the axis of the gear (12) are located on the same horizontal plane.

10. A high-precision adjustable cable cutting device according to claim 9, characterized in that: The surface of the arc-shaped limiting plate (6) is provided with an arc-shaped sliding groove, and the bottom of the shifting swing plate (5) is provided with a pulley that matches the size of the arc-shaped sliding groove; The pulley slides inside the arc-shaped groove, and the curvature of the arc-shaped groove is consistent with the trajectory curvature of the transposition swing plate (5).

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