Fixed-length shearing device for copper cable processing

Abstract

The invention relates to the technical field of shearing devices, in particular to a fixed-length shearing device for copper cable processing. According to the technical scheme, the device comprises a feeding component, a supporting frame and a cutter and further comprises a traction supporting component and a traction mechanism, the traction supporting component comprises a lifting mechanism and a first clamping jaw mechanism, a second clamping jaw mechanism is further arranged on the supporting frame, and a clamping interval is formed between the first clamping jaw mechanism and the second clamping jaw mechanism; the traction mechanism comprises a sliding rail assembly, a clamp assembly and a driving mechanism. The clamp assembly can stretch and retract into the clamping interval to clamp the cable. The first clamping jaw mechanism is driven by the lifting mechanism to lift for avoiding and reset for clamping, and the copper wire is accurately pulled out by the traction mechanism, so that a cutting point is always positioned in a linear section formed by a clamping interval, and the problems that the end part of the flexible copper wire is bent and continuous traction cannot be realized after the flexible copper wire is cut off are effectively solved; the device has the advantages of high cutting precision, stable operation and high automation degree.

Description

Technical Field

[0001] This invention relates to the field of shearing devices, and more particularly to a fixed-length shearing device for processing copper cables. Background Technology

[0002] Copper wire and cable cutting devices are indispensable key equipment in the fields of wire and cable manufacturing, electrical equipment assembly, and deep processing of metal materials. They are widely used in power cable production, communication wire harness preparation, motor winding wire processing, and wiring operations in various electrical control cabinets. Their core function is to precisely cut continuously wound copper wires to a preset length, providing uniformly sized semi-finished products for subsequent stripping, termination, crimping, or bundling processes. The basic working principle of these devices typically employs a feeding-measuring-cutting cyclic operation mode. A traction mechanism pulls the copper wire from the feed reel, a straightening mechanism eliminates internal stress to ensure straightness, and an encoder or servo drive system monitors the fed length in real time. When the set size is reached, the actuator is triggered to complete a rapid cut. To achieve efficient continuous production, modern cutting devices often integrate automatic feeding, precision length setting, synchronous cutting, and finished product collection modules, exhibiting a high level of automation and processing efficiency.

[0003] However, in practical production applications, existing fixed-length shearing devices generally suffer from a significant technical flaw when processing non-rigid copper cables. Due to the low bending stiffness of copper wires, especially thin-diameter conductors or multi-strand stranded cables, the free end of the cable, immediately freed from traction constraint after each cutting action, is highly susceptible to bending, warping, or sagging due to its own weight, residual stress release, or shearing impact. This end-bending phenomenon makes it difficult for the traction mechanism's grippers or feeding wheels to accurately grasp or smoothly guide the cable head at the start of the next work cycle, leading to feeding failures, jamming, or accumulated length control errors, forcing frequent equipment shutdowns for manual intervention. This problem severely impacts the stability and processing accuracy of continuous operation, especially on high-speed automated production lines, becoming a major bottleneck restricting production efficiency and product quality consistency. Therefore, improvements and optimizations to the feeding guidance and end-constraint structures of existing devices are urgently needed. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background art by proposing a fixed-length cutting device for processing copper cables.

[0005] The technical solution of the present invention: A fixed-length shearing device for processing copper cables, comprising a feeding component for supporting and conveying the cable and a support frame installed on one side of the feeding component, wherein a cable cutter is fixedly installed on the support frame, and a traction mechanism for tensioning the cable to a fixed length is installed on the support frame, and further comprising: The traction support component is installed on the support frame. The traction support component includes at least one set of lifting mechanisms installed on the support frame. A first gripper mechanism for clamping and fixing the cable is fixedly installed on the lifting mechanism. The lifting mechanism drives the first gripper mechanism to perform lifting and lowering movements. A connecting seat is fixedly installed on the support frame, and a second gripper mechanism is installed on the connecting seat. The first gripper mechanism and the second gripper mechanism form a clamping range for the traction mechanism to clamp and fix the cable. The traction mechanism includes a slide rail assembly, a clamp assembly slidably mounted on the slide rail assembly, and a drive mechanism that drives the clamp assembly to move along the slide rail assembly. The clamp assembly extends and retracts into the clamping area and clamps and fixes the cable.

[0006] Optionally, the lifting mechanism includes a base fixedly mounted on a support frame, guide rods fixedly mounted on both sides of the base, and a mounting plate slidably mounted on a plurality of the guide rods. A first cylinder is fixedly mounted on the base, and the output shaft of the first cylinder is fixedly connected to the mounting plate.

[0007] Optionally, the first gripper mechanism includes a connecting seat fixedly mounted on the mounting plate and gripping arms rotatably mounted on both sides of the connecting seat. A connecting rod is rotatably mounted on the gripping arm, and a drive seat is rotatably connected to the two connecting rods. A second cylinder is fixedly mounted on the connecting seat, and the output shaft of the second cylinder is fixedly connected to the drive seat.

[0008] Optionally, the clamping arm is provided with a connection hole for the cable to pass through, and the clamping arm is provided with a resistance adjustment mechanism for controlling the resistance between the connection hole and the cable.

[0009] Optionally, the resistance adjustment mechanism includes a slide groove disposed on the clamping arm and located inside the connecting hole, an arc-shaped plate slidably installed in the slide groove, a plurality of balls rotatably installed on the arc-shaped plate, a third cylinder fixedly installed on the clamping arm, and the output shaft of the third cylinder being fixedly connected to the arc-shaped plate.

[0010] Optionally, the slide rail assembly includes a guide rail fixedly mounted on a support frame, a slider slidably mounted on the guide rail, and the clamping assembly includes a base plate fixedly mounted on the slider, a raising plate fixedly mounted on the base plate, a support plate fixedly mounted on the raising plate, a guide rail fixedly mounted on the support plate, a vertical plate slidably mounted on the guide rail, a gripper cylinder fixedly mounted on the vertical plate, and a fourth cylinder fixedly mounted on the support plate, wherein the output shaft of the fourth cylinder is fixedly connected to the vertical plate.

[0011] Optionally, the drive mechanism includes a transmission belt mounted on a support frame, the transmission belt including two pulleys, a motor fixedly mounted on the support frame, the output shaft of the motor being coaxially and fixedly connected to one of the pulleys of the transmission belt, and the base plate being fixedly connected to the transmission belt.

[0012] Optionally, a receiving box is fixedly installed on the support frame, and a distance detector is fixedly installed on the support frame.

[0013] Optionally, the feeding component includes a cable reel for storing cables and a power component for driving the cable reel to rotate. The feeding component also includes a straightening mechanism for correcting the cables.

[0014] Optionally, the straightening mechanism includes a support box, multiple sets of vertically placed first cylinders and multiple sets of horizontally placed second cylinders fixedly installed inside the support box, with the first cylinders and second cylinders arranged alternately.

[0015] In summary, this application includes at least one of the following beneficial technical effects: To address the technical challenge of continuous traction in copper wire and cable processing caused by the flexibility of the material, resulting in bending at the cut end, a sophisticated and coordinated fixed-length cutting device is provided. By setting a fixed clamping zone composed of a first and second gripper mechanism, along with a liftable traction support component and a telescopic clamp assembly, rigid constraint is achieved throughout the copper wire's movement before and after cutting. During traction, the clamp extends into the zone to hold the copper wire and precisely pulls it out to the set length. Before cutting, the lifting gripper resets, locking the copper wire within the zone, ensuring the cutting point remains on a stable straight line. This design fundamentally eliminates end bending deformation caused by the copper wire's own weight, stress release, or shearing impact, ensuring the wire end remains straight after each cut and is precisely positioned for the next traction cycle. This significantly improves the continuous stability, dimensional accuracy, and automated production efficiency of fixed-length copper wire processing, while avoiding clamping damage and significantly increasing the yield. Attached Figure Description

[0016] Figure 1 Schematic diagram of a fixed-length shearing device Figure 1 ; Figure 2 Schematic diagram of a fixed-length shearing device Figure 2 ; Figure 3 Schematic diagram of a fixed-length shearing device Figure 3 ; Figure 4 for Figure 1 A magnified view of a section at point A in the middle; Figure 5 for Figure 2 A magnified view of a section at point B in the middle; Figure 6 for Figure 3 A magnified view of a section at point C; Figure 7 This is a schematic diagram showing the location distribution of the supporting components; Figure 8 This is a schematic diagram of the fixture assembly. Figure 9 This is a schematic diagram of the first gripper mechanism; Figure 10 This is a schematic diagram of the resistance adjustment mechanism.

[0017] Reference numerals: 1. Feeding component; 11. Wire reel; 12. Straightening mechanism; 121. Support box; 122. First cylinder; 123. Second cylinder; 2. Support frame; 3. Cutter; 4. Traction mechanism; 41. Slide rail assembly; 411. Guide rail; 412. Slider; 42. Clamp assembly; 421. Base plate; 422. Heightening plate; 423. Bearing plate; 424. Guide rail; 425. Vertical plate; 426. Gripper cylinder; 427. Fourth cylinder; 43. Drive mechanism; 431. Motor; 432. Transmission belt; 5. 51. Supporting components; 51. Lifting mechanism; 511. Base; 512. Guide rod; 513. Mounting plate; 514. First cylinder; 52. First gripper mechanism; 521. Connecting seat; 522. Gripping arm; 523. Connecting rod; 524. Drive seat; 525. Second cylinder; 53. Resistance adjustment mechanism; 531. Slide groove; 532. Arc plate; 533. Ball bearing; 534. Third cylinder; 54. Connecting seat; 55. Second gripper mechanism; 56. Gripping area; 6. Receiving box; 7. Distance detector; 8. Cable. Detailed Implementation

[0018] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0020] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] like Figures 1 to 4 As shown, the present invention proposes a fixed-length cutting device for processing copper wire and cable, including a feeding component 1 for supporting and conveying the wire and cable 8 and a support frame 2 installed on one side of the feeding component 1. A cutter 3 for cutting the wire and cable 8 is fixedly installed on the support frame 2. The feeding component 1 is used to accommodate the coiled copper wire and cable 8. The coil is driven to rotate by a power component, so that the wire and cable 8 is evenly released from the coil and extended outward. When the wire and cable 8 is pulled to the preset processing length, it is precisely cut by the cutter 3 to obtain copper wire segments that meet the size requirements, thus providing a basis for subsequent copper deep processing processes.

[0024] Furthermore, the feeding component 1 includes a wire reel 11 for storing the cable 8 and a power component for driving the wire reel 11 to rotate. The feeding component 1 also includes a straightening mechanism 12 for correcting the cable. Since copper cables will undergo plastic bending deformation during long-term coiling and storage, if they are directly cut to a fixed length, the bent wire will not only cause length measurement errors, but also affect the stability of subsequent clamping and traction. Therefore, the straightening mechanism 12 is set to eliminate the residual stress inside the copper wire, restore it to a straight state, and ensure the accuracy of the cutting length and the flatness of the cut end face.

[0025] The straightening mechanism 12 includes a support box 121, multiple sets of vertically placed first cylinders 122 and multiple sets of horizontally placed second cylinders 123 fixedly installed inside the support box 121. The first cylinders 122 and the second cylinders 123 are staggered. Under the action of traction force, the copper wire 8 passes through these staggered first cylinders 122 and second cylinders 123 roller groups in sequence. The rollers apply repeated alternating bending stress to the wire, causing the grain structure inside the copper conductor to rearrange, thereby effectively eliminating the curling memory effect formed by winding and storage, and realizing the precise straightening of the copper wire before entering the subsequent traction station.

[0026] like Figure 5 and Figure 7 as well as Figure 9 , Figure 10 As shown, the fixed-length shearing device in this embodiment also includes a traction support component 5 installed on the support frame 2. The traction support component 5 includes at least one set of lifting mechanisms 51 installed on the support frame 2. A first gripper mechanism 52 for clamping and fixing the cable 8 is fixedly installed on the lifting mechanism 51. The lifting mechanism 51 drives the first gripper mechanism 52 to move up and down. Further, the lifting mechanism 51 includes a base 511 fixedly installed on the support frame 2, guide rods 512 fixedly installed on both sides of the base 511, and a mounting plate 513 slidably installed on the multiple guide rods 512. A first cylinder 514 is fixedly installed on the base 511. The output shaft of the first cylinder 514 is fixedly connected to the mounting plate 513. The first cylinder 514 is a driving element. When its output shaft extends and retracts, it can drive the mounting plate 513 to move vertically up and down along the guide rods 512, thereby accurately controlling the height position of the first gripper mechanism 52, so that the gripper can automatically avoid movement interference when the traction mechanism 4 moves, and rise and clamp in time after the cable 8 stops, ensuring that the copper wire is in a stable locked state at the moment of cutting.

[0027] Furthermore, the first gripper mechanism 52 includes a connecting seat 521 fixedly mounted on the mounting plate 513 and gripping arms 522 rotatably mounted on both sides of the connecting seat 521. A connecting rod 523 is rotatably mounted on the gripping arms 522, and a drive seat 524 is rotatably connected to the two connecting rods 523. A second cylinder 525 is fixedly mounted on the connecting seat 521. The output shaft of the second cylinder 525 is fixedly connected to the drive seat 524. When the second cylinder 525 pushes the drive seat 524 to move, the connecting rod 523 drives the gripping arms 522 on both sides to rotate synchronously around the hinge point of the connecting seat 521, realizing the mutual approach or distance of the ends of the gripping arms 522, thereby realizing the rapid clamping and release of the copper cable 8. This open structure makes it easy for the cable 8 to be inserted into the gripping arm 522 from the side, without having to insert the end of the copper wire through the gripper axially, which significantly improves the convenience of loading and unloading.

[0028] It is worth noting that the clamping arm 522 is provided with a connecting hole for the cable 8 to pass through, and the clamping arm 522 is provided with a resistance adjustment mechanism 53 to control the resistance between the connecting hole and the cable 8. During the cutting process, the copper wire needs to be rigidly fixed to prevent the cut from shifting. After the cutting is completed, when the traction mechanism 4 needs to move the cable 8 again, the copper wire needs to slide smoothly inside the connecting hole to adjust its position. Therefore, the resistance adjustment mechanism 53 is set to dynamically control the frictional resistance between the clamping arm 522 and the surface of the copper wire, taking into account both the positioning rigidity during cutting and the smoothness of movement during traction. The resistance adjustment mechanism 53 includes a groove 531 provided on the clamping arm 522 and located inside the connecting hole. The groove 531 slides smoothly within the groove. The device is equipped with an arc-shaped plate 532, on which multiple ball bearings 533 are rotatably mounted. A third cylinder 534 is fixedly mounted on the clamping arm 522, and the output shaft of the third cylinder 534 is fixedly connected to the arc-shaped plate 532. When the third cylinder 534 pushes the arc-shaped plate 532 to move along the slide groove 531, the ball bearings 533 can selectively press against or disengage from the surface of the copper wire 8. In the clamped state, the ball bearings 533 press against the copper wire to form multi-point contact, using the rolling friction characteristics to provide stable constraint. In the released state, the ball bearings 533 disengage from the surface of the copper wire or only maintain slight contact, greatly reducing the sliding resistance and allowing the copper wire to move freely within the connection hole. This is suitable for copper processing with high surface precision requirements and avoids clamping damage.

[0029] The support frame 2 is fixedly equipped with a connecting seat 54, and the connecting seat 54 is equipped with a second gripper mechanism 55. The second gripper mechanism 55 includes a first gripper mechanism 52. That is, the second gripper mechanism 55 and the first gripper mechanism 52 have the same structure, which facilitates the insertion and removal of the cable 8 without having to pull the cable 8 out completely from the end or gradually insert it. The first gripper mechanism 52 and the second gripper mechanism 55 form a clamping interval 56 for the traction mechanism 4 to clamp and fix the cable 8. The copper cable 8 located inside the clamping interval 56 is always tensioned and compressed, thus forming a rigid and fixed straight segment near the cutting point. Since the position and length of the clamping interval 56 are fixed, the distance between the end of the copper wire and the clamping interval 56 remains unchanged after each cut. This fundamentally solves the problem that traditional equipment suffers from the problem of the copper wire being soft and bending after cutting, making it impossible to be accurately positioned and pulled by the subsequent clamping mechanism, thus ensuring the continuity and precision stability of the copper processing process.

[0030] like Figures 6 to 8As shown, in this embodiment, a traction mechanism 4 for tensioning the cable 8 to a fixed length is installed on the support frame 2. The traction mechanism 4 includes a slide rail assembly 41, a clamp assembly 42 slidably installed on the slide rail assembly 41, and a drive mechanism 43 that drives the clamp assembly 42 to move along the slide rail assembly 41. The clamp assembly 42 extends and retracts into the clamping interval 56 and clamps and fixes the cable 8. The slide rail assembly 41 provides high-precision linear motion guidance for the clamp assembly 42. The drive mechanism 43 acts as a power source to drive the clamp assembly 42 to move precisely along the copper material conveying direction. The clamp assembly 42 is responsible for extending into the clamping interval 56 to clamp the copper wire when traction is required.

[0031] Furthermore, the slide rail assembly 41 includes a guide rail 411 fixedly mounted on the support frame 2, and a slider 412 slidably mounted on the guide rail 411. The clamping assembly 42 includes a base plate 421 fixedly mounted on the slider 412, a lifting plate 422 fixedly mounted on the base plate 421, a support plate 423 fixedly mounted on the lifting plate 422, a guide rail 424 fixedly mounted on the support plate 423, a vertical plate 425 slidably mounted on the guide rail 424, a gripper cylinder 426 fixedly mounted on the vertical plate 425, and a first... The output shaft of the fourth cylinder 427 is fixedly connected to the vertical plate 425. The vertical plate 425 is driven to slide along the guide rail 424 by the fourth cylinder 427, which can precisely control the extension and retraction of the gripper cylinder 426 into the gripping area 56. When the gripper cylinder 426 enters the area, its gripper closes to clamp the copper cable 8. After the traction is completed, the gripper cylinder 426 releases and retracts to avoid interference with the lifting mechanism 51 and the first gripper mechanism 52. This layered motion design effectively solves the problem of timing coordination of multiple motion mechanisms in a narrow space.

[0032] The drive mechanism 43 includes a transmission belt 432 mounted on the support frame 2. The transmission belt 432 includes two pulleys. A motor 431 is fixedly mounted on the support frame 2. The output shaft of the motor 431 is coaxially and fixedly connected to one of the pulleys of the transmission belt 432. The base plate 421 is fixedly connected to the transmission belt 432. The motor 431 serves as a precision power source. Its output shaft rotates to drive the pulleys and the transmission belt 432 to move. The linear motion of the transmission belt 432 drives the base plate 421 and the entire clamp assembly 42 to move along the guide rail 411. The number of rotations of the motor 431 is precisely proportional to the traction length of the copper wire. With the feedback signal from the distance detector 7, high-precision fixed-length control can be achieved, meeting the strict requirements for dimensional tolerances in copper wire and cable processing.

[0033] like Figures 1 to 3As shown, in this embodiment, a receiving box 6 is fixedly installed on the support frame 2, and a distance detector 7 is fixedly installed on the support frame 2. The receiving box 6 is used to collect the cut copper wire segments to avoid the finished products from scattering and getting messy. The distance detector 7 adopts a laser rangefinder to monitor the displacement of the traction mechanism 4 or the conveying length of the copper wire itself in real time, and feeds the length signal back to the control system to form a closed-loop control with the motor 431 to ensure that the length of the copper wire segment cut each time is accurate and consistent, meeting the processing standards of high-quality copper products.

[0034] In this embodiment, the drive mechanism 43 moves the clamp assembly 42 to the starting side near the clamping section 56. Then, the fourth cylinder 427 pushes the gripper cylinder 426 forward, allowing it to enter the clamping section 56 formed by the first gripper mechanism 52 and the second gripper mechanism 55. Subsequently, the gripper cylinder 426 closes, firmly clamping the copper cable 8 located in the section. Then, the motor 431 of the drive mechanism 43 starts, driving the clamp assembly 42 and the copper wire together along the guide rail 411 to a preset fixed length position via the transmission belt 432. During this process, the lifting mechanism 51 drives the first gripper mechanism 52 to a low position, making room for the gripper cylinder 426 and the copper wire it holds. When the copper wire is pulled to the specified length, the lifting mechanism 51 immediately drives the first gripper cylinder 52 to move to a lower position. The claw mechanism 52 rises and, together with the second gripper mechanism 55, clamps the copper wire, forming a stable straight fixed section within the clamping zone 56. Subsequently, the cutter 3 performs the cutting action. After the cutting is completed, the gripper cylinder 426 releases the copper wire and retracts. The drive mechanism 43 drives the clamping assembly 42 back to the starting position, ready to enter the next work cycle. This process is repeated to achieve continuous automated fixed-length cutting of copper cables. This workflow effectively solves the problem of end bending caused by loss of constraint during the cutting of flexible copper materials through the avoidance and reset actions of the lifting mechanism 51 and the double locking of the copper wire by the clamping zone 56. It ensures that the head of the copper wire can remain straight and be accurately clamped during each traction, greatly improving the automation level, production efficiency and yield of fixed-length processing of copper cables.

[0035] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fixed-length cutting device for processing copper cables, comprising a feeding component (1) for supporting and conveying a cable (8) and a support frame (2) installed on one side of the feeding component (1), wherein a cutter (3) for cutting the cable (8) is fixedly installed on the support frame (2), and a traction mechanism (4) for tensioning the cable (8) to a fixed length is installed on the support frame (2), characterized in that, Also includes: The traction support component (5) is installed on the support frame (2). The traction support component (5) includes at least one set of lifting mechanisms (51) installed on the support frame (2). A first gripper mechanism (52) for clamping and fixing the cable (8) is fixedly installed on the lifting mechanism (51). The lifting mechanism (51) drives the first gripper mechanism (52) to perform lifting and lowering movements. A connecting seat (54) is fixedly installed on the support frame (2), and a second gripper mechanism (55) is installed on the connecting seat (54). The first gripper mechanism (52) and the second gripper mechanism (55) form a clamping interval (56) for the traction mechanism (4) to clamp and fix the cable (8). The traction mechanism (4) includes a slide rail assembly (41), a clamp assembly (42) slidably mounted on the slide rail assembly (41), and a drive mechanism (43) that drives the clamp assembly (42) to move along the slide rail assembly (41). The clamp assembly (42) extends and retracts into the clamping area (56) and clamps and fixes the cable (8).

2. The fixed-length cutting device for processing copper cables according to claim 1, characterized in that, The lifting mechanism (51) includes a base (511) fixedly installed on the support frame (2), guide rods (512) fixedly installed on both sides of the base (511), and mounting plate (513) slidably installed on the multiple guide rods (512). A first cylinder (514) is fixedly installed on the base (511), and the output shaft of the first cylinder (514) is fixedly connected to the mounting plate (513).

3. The fixed-length cutting device for processing copper cables according to claim 2, characterized in that, The first gripper mechanism (52) includes a connecting seat (521) fixedly mounted on the mounting plate (513) and gripping arms (522) rotatably mounted on both sides of the connecting seat (521). A connecting rod (523) is rotatably mounted on the gripping arm (522), and a drive seat (524) is rotatably connected to the two connecting rods (523). A second cylinder (525) is fixedly mounted on the connecting seat (521), and the output shaft of the second cylinder (525) is fixedly connected to the drive seat (524).

4. The fixed-length shearing device for processing copper cables according to claim 3, characterized in that, The clamping arm (522) is provided with a connection hole for the cable (8) to pass through, and the clamping arm (522) is provided with a resistance adjustment mechanism (53) for controlling the resistance between the connection hole and the cable (8).

5. A fixed-length shearing device for processing copper cables according to claim 4, characterized in that, The resistance adjustment mechanism (53) includes a slide groove (531) disposed on the clamping arm (522) and located inside the connecting hole. An arc plate (532) is slidably installed in the slide groove (531). Multiple balls (533) are rotatably installed on the arc plate (532). A third cylinder (534) is fixedly installed on the clamping arm (522). The output shaft of the third cylinder (534) is fixedly connected to the arc plate (532).

6. The fixed-length cutting device for processing copper cables according to claim 5, characterized in that, The slide rail assembly (41) includes a guide rail (411) fixedly mounted on the support frame (2), and a slider (412) slidably mounted on the guide rail (411). The clamp assembly (42) includes a base plate (421) fixedly mounted on the slider (412), a heightening plate (422) fixedly mounted on the base plate (421), a support plate (423) fixedly mounted on the heightening plate (422), a guide rail (424) fixedly mounted on the support plate (423), a vertical plate (425) slidably mounted on the guide rail (424), a gripper cylinder (426) fixedly mounted on the vertical plate (425), and a fourth cylinder (427) fixedly mounted on the support plate (423). The output shaft of the fourth cylinder (427) is fixedly connected to the vertical plate (425).

7. A fixed-length shearing device for processing copper cables according to claim 6, characterized in that, The drive mechanism (43) includes a transmission belt (432) mounted on a support frame (2), the transmission belt (432) includes two pulleys, a motor (431) is fixedly mounted on the support frame (2), the output shaft of the motor (431) is coaxially and fixedly connected to one of the pulleys of the transmission belt (432), and the base plate (421) is fixedly connected to the transmission belt (432).

8. A fixed-length shearing device for processing copper cables according to claim 7, characterized in that, A container (6) is fixedly installed on the support frame (2), and a distance detector (7) is fixedly installed on the support frame (2).

9. A fixed-length shearing device for processing copper cables according to claim 8, characterized in that, The feeding component (1) includes a wire reel (11) for storing the cable (8) and a power component for driving the wire reel (11) to rotate. The feeding component (1) also includes a straightening mechanism (12) for correcting the cable.

10. A fixed-length shearing device for processing copper cables according to claim 9, characterized in that, The straightening mechanism (12) includes a support box (121), multiple sets of vertically placed first cylinders (122) and multiple sets of horizontally placed second cylinders (123) fixedly installed inside the support box (121), with the first cylinders (122) and the second cylinders (123) arranged alternately.

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