High-precision cable fixed-length cutting device

Abstract

The utility model discloses a high-precision cable fixed-length cutting device which is used for solving the problems that an existing fixed-length cutting device is not high in fixed-length precision and low in machining efficiency. According to the technical scheme, the high-precision cable fixed-length cutting-off device comprises a feeding mechanism, a temporary storage mechanism, a straightening mechanism and a fixed-length discharging mechanism, the feeding mechanism is arranged on one side of the temporary storage mechanism, the straightening mechanism is arranged on the other side of the temporary storage mechanism, and the fixed-length discharging mechanism is arranged on the other side of the temporary storage mechanism. A discharging port of the straightening mechanism is right opposite to a feeding port of the fixed-length discharging mechanism. The fixed-length discharging mechanism comprises a fixing base, a cutting assembly, a fixed-length stepping motor, an encoder, a driving wheel, a driven wheel and a pressing wheel, the cutting assembly, the fixed-length stepping motor, the encoder, the driving wheel, the driven wheel and the pressing wheel are installed on the fixing base, the cutting assembly is arranged at a discharging port of the fixed-length discharging mechanism, the pressing wheel is in transmission connection with the driving wheel and the driven wheel, and the driving wheel and the driven wheel are arranged in the discharging direction. The driving wheel is connected with the fixed-length stepping motor, and the driven wheel is connected with the encoder. And high-precision fixed length is realized through mutual feedback of the encoder and the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production, in particular to a high-precision cable fixed-length cutting device. Background Art

[0002] In the connector industry, cutting cables to a certain length is a basic requirement. Due to inaccurate manual cutting, too much cable cost is wasted and the efficiency is low.

[0003] Prior art CN216849470U discloses a length-fixing device for processing cross-linked polyethylene insulated polyvinyl chloride power cables. The utility model embeds one end of the cable into the cable slot. When the motor drives the driving roller to rotate, one end of the cable moves synchronously with the transmission belt. The cable reel rotates to release the material. The cable body is embedded in the cable slot and moves synchronously with the transmission belt. The number of rotations of the motor per unit time is adjusted to adjust the feeding distance each time, that is, the cut length is adjusted. After each feeding action is completed, the electric cylinder drives the cutting knife to cut the cable. The cut cable body continues to move synchronously with the transmission belt until it contacts the unloading vertical plate, and the cable body is pulled out from the cable slot. The pulled-out cable body falls into the collection box to complete the collection, realizing the continuous fixed-length cutting of the cable body, replacing manual operation, saving time and effort, and improving processing efficiency and processing quality. The problem of the prior art is that there is a transmission error in the cable feeding process, and when resistance occurs during the feeding process, the feeding distance is not accurate enough by only using the motor to adjust the feeding distance, and the error range is large. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a high-precision cable fixed-length cutting device, which aims to solve the problems of low cable fixed-length cutting accuracy and slow processing efficiency, and achieve high-precision output with an error range of ±0.1mm for each 1m of cable cut.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision cable fixed-length cutting device, comprising a feeding mechanism, a buffer mechanism, a straightening mechanism and a fixed-length discharging mechanism, the feeding mechanism is arranged on one side of the buffer mechanism, and the straightening mechanism is arranged on the other side of the buffer mechanism, and the discharging port of the straightening mechanism is directly opposite to the feeding port of the fixed-length discharging mechanism; the fixed-length discharging mechanism comprises a fixed seat and a cutting assembly installed on the fixed seat, a fixed-length stepping motor, an encoder, a driving wheel, a driven wheel and a clamping wheel, the cutting assembly is arranged at the discharging port of the fixed-length discharging mechanism, the clamping wheel is respectively connected to the driving wheel and the driven wheel, the driving wheel and the driven wheel are arranged along the discharging direction, the driving wheel is connected to the fixed-length stepping motor, and the driven wheel is connected to the encoder.

[0006] The feeding mechanism includes a mounting seat, a cable drum, a screw, a carrier, a damper and a feeding roller, the screw is installed on the mounting seat, the carrier is connected to the screw in a transmission manner, the carrier and the mounting seat are relatively provided with positioning pressure shafts, the cable drum is arranged between the two positioning pressure shafts, the damper is connected to the positioning pressure shaft installed on the carrier, the feeding roller is installed on the carrier, and the cable is transported to the cache mechanism through the feeding roller.

[0007] A feeding pressing wheel is arranged at the front end of the feeding roller, a sensor is arranged below the feeding pressing wheel, the feeding pressing wheel is mounted on a connecting plate, and the connecting plate is movably mounted on the carrier.

[0008] The cache mechanism includes a cache fixing plate, a first cache roller, a second cache roller, a third cache roller, a counterweight roller, a wire pressing roller, a wire pulling roller and a wire pulling stepper motor; the first cache roller, the second cache roller and the third cache roller are fixedly installed on the cache fixing plate, and the counterweight roller is movably installed on the cache fixing plate, and the cable is transported to the straightening mechanism through the first cache roller, the second cache roller, the counterweight roller and the third cache roller in sequence; the wire pressing roller, the wire pulling roller and the wire pulling stepper motor are arranged between the first cache roller and the second cache roller, the wire pressing roller is connected to the wire pulling roller through transmission, and the wire pulling roller is connected to the wire pulling stepper motor.

[0009] A position sensor is installed on the motion track of the counterweight roller.

[0010] The straightening mechanism comprises a straightening fixing plate, an upper straightening roller seat, a lower straightening roller seat, a straightening clamp and a transmission rod. The lower straightening roller seat is fixedly installed on the straightening fixing plate. The transmission rod passes through the upper straightening roller seat and the lower straightening roller seat. One end of the transmission rod is clamped with the upper straightening roller seat, and the other end is hinged with the straightening clamp. The upper straightening roller seat and the lower straightening roller seat are both provided with multiple rollers, and the rollers on the upper straightening roller seat and the rollers on the lower straightening roller seat are staggered.

[0011] The straightening mechanism also includes a small wire-passing ring and a proximity signal sensor. The small wire-passing ring is movably mounted on the straightening fixed plate, and the proximity signal sensor is mounted at one end close to the discharge port of the straightening mechanism. The cable passes through the small wire-passing ring and is transported toward the discharge port of the straightening mechanism.

[0012] The cutting assembly comprises a cutting slide, an upper cutter and a lower cutter, wherein the upper cutter and the lower cutter are mounted on the cutting slide, and a discharge port of the fixed-length discharge mechanism is arranged between the upper cutter and the lower cutter edges.

[0013] The fixed-length discharging mechanism includes a material picking component, which is arranged at the rear end of the cutting component. The material picking component includes a wire outlet guide rod, a material picking plate and a material picking slide. The wire outlet guide rod is provided with a wire outlet guide hole, and the wire outlet guide hole is coaxially arranged with the discharge port of the fixed-length discharging mechanism. The material picking plate is installed on the material picking slide, and the material picking end face of the material picking plate is arranged below the wire outlet guide hole.

[0014] The fixed-length discharging mechanism also includes a clamping assembly, which includes a clamping clamp, a rubber hammer and a retaining frame. The clamping clamp is installed on a fixed seat, the rubber hammer is installed on the clamping clamp and abuts against the retaining frame, the retaining frame is movably installed on the fixed seat, and the clamping wheel is movably connected to the retaining frame.

[0015] Beneficial effects of the utility model:

[0016] 1) By setting a fixed-length stepper motor and an encoder in the fixed-length feeding mechanism, when a certain length of cable is needed, the fixed-length stepper motor rotates the driving wheel, the cable is pulled out, and at the same time drives the driven wheel to rotate, so that the encoder collects the pulse signal of the pulled-out length. The rotation amount of the fixed-length stepper motor is adjusted through signal comparison to achieve high-precision fixed-length extraction.

[0017] 2) By setting a damper in the feeding mechanism, after the wire drum is pressed by the positioning pressure shaft, the damper is used to adjust the tension on the cable line, so that the bending stress of the cable is reduced and it is easy to transport.

[0018] 3) By setting a feeding crimping wheel and a sensor in the feeding mechanism, when the cable is broken or pulled out, the feeding crimping wheel contacts the sensor under the influence of gravity, detects the broken signal, and reminds the staff to replenish the material in time.

[0019] 4) By arranging the first cache roller, the second cache roller, the third cache roller and the counterweight roller in the cache mechanism, the cable is transported to the straightening mechanism through the first cache roller, the second cache roller, the counterweight roller and the third cache roller in sequence. There is sufficient distance between the four rollers to stabilize the tension on the line. At the same time, a position sensor is installed on the motion track of the counterweight roller. The position sensor is used to detect the current length of the cable cache and transmit a signal to the wire pulling stepper motor to control the start and stop and speed of the wire pulling stepper motor.

[0020] 5) By staggering the rollers on the upper straightening roller seat and the rollers on the lower straightening roller seat, the upper straightening roller seat is pulled down using a straightening clamp so that the cable is pressed according to the attenuation waveform and the bending stress of the cable can be gradually released. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the fixed-length discharging mechanism of the utility model;

[0024] Figure 3 It is a schematic diagram of the feeding mechanism of the utility model;

[0025] Figure 4 A schematic diagram of the cache mechanism of the utility model;

[0026] Figure 5 It is a schematic diagram of the straightening mechanism of the utility model;

[0027] In the figure: 1. feeding mechanism; 11. mounting seat; 111. positioning pressure shaft; 12. cable drum; 13. lead screw; 14. carrier; 15. damper; 16. feeding roller; 17. feeding pressure roller; 18. sensor; 19. connecting plate; 2. buffer mechanism; 21. buffer fixing plate; 22. first buffer roller; 23. second buffer roller; 24. third buffer roller; 25. counterweight roller; 26. pressure roller; 27. wire pulling roller; 28. wire pulling stepping motor; 29. ​​position sensor; 3. straightening mechanism; 31. straightening fixing plate; 32. upper straightening roller seat; 33. Lower straightening roller seat; 34. Straightening clamp; 35. Transmission rod; 36. Small wire ring; 37. Proximity signal sensor; 4. Fixed-length feeding mechanism; 41. Fixed seat; 42. Cutting assembly; 421. Cutting slide; 422. Upper cutter; 423. Lower cutter; 43. Fixed-length stepping motor; 44. Encoder; 45. Driving wheel; 46. Driven wheel; 47. Clamping wheel; 48. Picking assembly; 481. Wire guide rod; 482. Picking plate; 483. Picking slide; 49. Clamping assembly; 491. Clamping clamp; 492. Rubber hammer; 493. Retaining frame. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0029] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" means two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0030] The technical solution of the utility model is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be repeated in some embodiments. Example

[0031] like Figures 1 to 5 As shown, the utility model provides a high-precision cable fixed-length cutting device, including a feeding mechanism 1, a buffer mechanism 2, a straightening mechanism 3 and a fixed-length discharging mechanism 4, the feeding mechanism 1 is arranged on one side of the buffer mechanism 2, the straightening mechanism 3 is arranged on the other side of the buffer mechanism 2, and the discharging port of the straightening mechanism 3 is directly opposite to the feeding port of the fixed-length discharging mechanism 4; the fixed-length discharging mechanism 4 includes a fixed seat 41 and a cutting component 42, a fixed-length stepping motor 43, an encoder 44, a driving wheel 45, a driven wheel 46 and a clamping wheel 47 installed on the fixed seat 41, the cutting component 42 is arranged at the discharging port of the fixed-length discharging mechanism 4, the clamping wheel 47 is respectively connected to the driving wheel 45 and the driven wheel 46, the driving wheel 45 and the driven wheel 46 are arranged along the discharging direction, the driving wheel 45 is connected to the fixed-length stepping motor 43, and the driven wheel 46 is connected to the encoder 44.

[0032] The utility model sets a fixed-length stepping motor 43 and an encoder 44 in a fixed-length feeding mechanism 4. When a certain length of cable is needed, the fixed-length stepping motor 43 rotates a driving wheel 45, the cable is drawn out, and at the same time drives a driven wheel 46 to rotate, so that the encoder 44 collects a pulse signal of the drawn length. The rotation amount of the fixed-length stepping motor 43 is adjusted by signal comparison, so that high-precision fixed-length drawing is achieved.

[0033] Specifically, the cutting assembly 42 includes a cutting slide 421, an upper cutter 422 and a lower cutter 423, the upper cutter 422 and the lower cutter 423 are installed on the cutting slide 421, and the discharge port of the fixed-length discharge mechanism 4 is set between the cutting edges of the upper cutter 422 and the lower cutter 423.

[0034] Specifically, the fixed-length discharging mechanism includes a pick-up assembly 48, which is arranged at the rear end of the cutting assembly 42. The pick-up assembly 48 includes a wire-out guide rod 481, a pick-up plate 482 and a pick-up slide 483. The wire-out guide rod 481 is provided with a wire-out guide hole 4811, and the wire-out guide hole 4811 is coaxially arranged with the discharge port of the fixed-length discharging mechanism 4. The pick-up plate 482 is mounted on the pick-up slide 483, and the pick-up end face of the pick-up plate 482 is arranged below the wire-out guide hole 4811. By arranging the pick-up end face of the pick-up plate 482 at a position lower than the discharge port of the fixed-length discharging mechanism 4, the cable will not fall from a high place after being cut, thereby avoiding collision of the cable, causing the shape to change and reducing the cable precision.

[0035] Specifically, in order to effectively transport the cable and enable the encoder 44 to accurately collect the length pulse signal, the fixed-length discharge mechanism 4 also includes a clamping assembly 49, which includes a clamping clamp 491, a rubber hammer 492 and a retaining frame 493. The clamping clamp 491 is installed on the fixed seat 41, the rubber hammer 492 is installed on the clamping clamp 491 and abuts against the retaining frame 493, the retaining frame 493 is movably installed on the fixed seat 41, and the clamping wheel 47 is movably connected to the retaining frame 493. When the clamping force of the clamping wheel 47 is insufficient, it cannot provide sufficient friction to transport the cable in the discharge direction. By pressing the clamping clamp 491, the rubber hammer 492 is pressed against the retaining frame 493 to provide additional clamping force for the clamping wheel 47, thereby ensuring smooth transportation of the cable. Example

[0036] like Figure 3As shown, the feeding mechanism 1 includes a mounting seat 11, a cable drum 12, a screw 13, a platform 14, a damper 15 and a feeding roller 16. The screw 13 is mounted on the mounting seat 11, and the platform 14 is transmission-connected with the screw 13. Positioning pressure shafts 111 are relatively arranged on the platform 14 and the mounting seat 11. The cable drum 12 is arranged between the two positioning pressure shafts 111. The positioning pressure shaft 111 can rotate. The damper 15 is connected to the positioning pressure shaft 111 installed on the platform 14. When the feeding roller 16 is mounted on the platform 14, the cable is transported to the cache mechanism 2 through the feeding roller 16. The cable drum 12 is placed between the mounting seat 11 and the carrier 14, and the carrier 14 is moved in the direction close to the mounting seat 11 through the screw 13. When the cable drum 12 is pressed by the positioning pressure shafts 111 at both ends, the cable drum 12 is driven to rotate because the positioning pressure shafts 111 are rotatable. At this time, the tension on the cable line is adjusted by adjusting the damper 15 connected to the positioning pressure shafts 111 on the carrier 14, so that the bending stress of the cable is reduced and transportation is facilitated.

[0037] Specifically, a feeding pressing wheel 17 is provided at the front end of the feeding roller 16, a sensor 18 is provided below the feeding pressing wheel 17, and the feeding pressing wheel 17 is mounted on a connecting plate 19, and the connecting plate 19 is movably mounted on the carrier 14. When the cable is broken or pulled out, the feeding pressing wheel 17 contacts the sensor 18 under the influence of gravity, detects a disconnection signal, and reminds the staff to replenish the material in time. Example

[0038] like Figure 4 As shown, the cache mechanism 2 includes a cache fixing plate 21, a first cache roller 22, a second cache roller 23, a third cache roller 24, a counterweight roller 25, a wire pressing roller 26, a wire pulling roller 27 and a wire pulling stepping motor 28; the first cache roller 22, the second cache roller 23 and the third cache roller 24 are fixedly mounted on the cache fixing plate 21, and the counterweight roller 25 is movably mounted on the cache fixing plate 21, and the cable passes through the first cache roller 22, the second cache roller 23, the counterweight roller 25 in sequence. 5 and the third buffer roller 26 are transported to the straightening mechanism 3; the wire pressing roller 26, the wire pulling roller 27 and the wire pulling stepping motor 28 are arranged between the first buffer roller 22 and the second buffer roller 23, the wire pressing roller 26 is connected with the wire pulling roller 27 in transmission connection, the wire pulling roller 27 is connected with the wire pulling stepping motor 28, and a position sensor 29 is installed on the motion trajectory of the counterweight roller 25, and there are three position sensors 29, which are respectively installed at the starting point, midpoint and end point of the motion trajectory of the counterweight roller 25.

[0039] Specifically, after the cable is pulled out from the feeding mechanism 1, it is transported to the straightening mechanism 3 through the first buffer roller 22, the second buffer roller 23, the counterweight roller 25 and the third buffer roller 26 in sequence. When the cable is pulled out from the third buffer roller 26, the counterweight roller 25 will move upward and be detected by the position sensor 29 at the starting point. The wire pulling stepper motor 28 will pull out the cable from the feeding mechanism 1 for replenishment. When the position of the counterweight roller 25 moves higher, the wire pulling speed of the wire pulling stepper motor 28 increases. When the counterweight roller 25 moves to the end point, it is detected by the position sensor 29 at the end point, indicating that the cable pulled out from the third buffer roller 26 is stuck in the front section. At this time, the buffer mechanism 2 issues a warning and shuts down. In order to effectively transport the cable, the buffer mechanism 2 is also equipped with a clamping mechanism 49 similar to that of Example 1 (refer to Example 1 for the specific structure). Example

[0040] like Figure 5 As shown, the straightening mechanism 3 includes a straightening fixed plate 31, an upper straightening roller seat 32, a lower straightening roller seat 33, a straightening clamp 34 and a transmission rod 35. The lower straightening roller seat 33 is fixedly installed on the straightening fixed plate 31, and the transmission rod 35 passes through the upper straightening roller seat 32 and the lower straightening roller seat 33. One end of the transmission rod 35 is clamped to the upper straightening roller seat 32, and the other end is hinged to the straightening clamp 34. The upper straightening roller seat 32 and the lower straightening roller seat 33 are both provided with Multiple rollers are provided, and the rollers on the upper straightening roller seat 32 and the rollers on the lower straightening roller seat 33 are arranged alternately. The cable passes between the upper straightening roller seat 32 and the lower straightening roller seat 33, and the upper straightening roller seat 32 is pulled down by the straightening clamp 34. Since the rollers on the upper straightening roller seat 32 and the rollers on the lower straightening roller seat 33 are arranged alternately, the cable is pressed according to the attenuation waveform, and the bending stress of the cable can be gradually released when the cable is transported in the discharge direction.

[0041] Specifically, the straightening mechanism 3 also includes a small wire loop 36 and a proximity signal sensor 37. The small wire loop 36 is movably mounted on the straightening fixing plate 31, and the proximity signal sensor 37 is mounted at one end close to the discharge port of the straightening mechanism 3. The cable passes through the small wire loop 36 and is transported toward the discharge port of the straightening mechanism 3. When the cable is broken, in order not to waste materials and not to affect the processing efficiency, the two broken cables are connected by knotting and continue to be transported. Since the size of the cable knot is larger than the diameter of the small wire loop 36, the small wire loop 36 will be forced to move forward to approach the proximity signal sensor 37, and send a connector proximity signal. At this time, the cable knot needs to be opened manually, and the cables are respectively passed through the small wire loop 36 and transported to the next mechanism.

[0042] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A high-precision cable fixed-length cutting device, comprising a feeding mechanism (1), a buffer mechanism (2), a straightening mechanism (3) and a fixed-length discharging mechanism (4), characterized in that: The feeding mechanism (1) is arranged on one side of the buffer mechanism (2), the straightening mechanism (3) is arranged on the other side of the buffer mechanism (2), and the discharge port of the straightening mechanism (3) is directly opposite to the feed port of the fixed-length discharge mechanism (4); the fixed-length discharge mechanism (4) comprises a fixed seat (41) and a cutting assembly (42) mounted on the fixed seat (41), a fixed-length stepping motor (43), an encoder (44), a driving wheel (45), a driven wheel (46) and a clamping wheel (47); the cutting assembly (42) is arranged at the discharge port of the fixed-length discharge mechanism (4), the clamping wheel (47) is respectively connected to the driving wheel (45) and the driven wheel (46), the driving wheel (45) and the driven wheel (46) are arranged in a discharge direction, the driving wheel (45) is connected to the fixed-length stepping motor (43), and the driven wheel (46) is connected to the encoder (44).

2. A high-precision cable fixed-length cutting device according to claim 1, characterized in that: The feeding mechanism (1) comprises a mounting seat (11), a cable drum (12), a lead screw (13), a carrier (14), a damper (15) and a feeding roller (16); the lead screw (13) is mounted on the mounting seat (11); the carrier (14) is transmission-connected to the lead screw (13); positioning pressure shafts (111) are arranged opposite to the carrier (14) and the mounting seat (11); the cable drum (12) is arranged between the two positioning pressure shafts (111); the damper (15) is connected to the positioning pressure shaft (111) mounted on the carrier (14); the feeding roller (16) is mounted on the carrier (14); and the cable is transported to the cache mechanism (2) via the feeding roller (16).

3. A high-precision cable fixed-length cutting device according to claim 2, characterized in that: A feeding pressing wheel (17) is provided at the front end of the feeding roller (16), a sensor (18) is provided below the feeding pressing wheel (17), and the feeding pressing wheel (17) is mounted on a connecting plate (19), and the connecting plate (19) is movably mounted on the carrier (14).

4. The high-precision cable fixed-length cutting device according to claim 1, characterized in that: The cache mechanism (2) comprises a cache fixing plate (21), a first cache roller (22), a second cache roller (23), a third cache roller (24), a counterweight roller (25), a wire pressing roller (26), a wire pulling roller (27) and a wire pulling stepping motor (28); the first cache roller (22), the second cache roller (23) and the third cache roller (24) are fixedly mounted on the cache fixing plate (21), and the counterweight roller (25) is movably mounted on the cache fixing plate (21). 1), the cable is transported to the straightening mechanism (3) through a first buffer roller (22), a second buffer roller (23), a counterweight roller (25) and a third buffer roller (24) in sequence; a wire pressing roller (26), a wire pulling roller (27) and a wire pulling stepping motor (28) are arranged between the first buffer roller (22) and the second buffer roller (23), the wire pressing roller (26) is transmission-connected to the wire pulling roller (27), and the wire pulling roller (27) is connected to the wire pulling stepping motor (28).

5. A high-precision cable fixed-length cutting device according to claim 4, characterized in that: A position sensor (29) is installed on the motion track of the counterweight roller (25).

6. The high-precision cable fixed-length cutting device according to claim 1, characterized in that: The straightening mechanism (3) comprises a straightening fixed plate (31), an upper straightening roller seat (32), a lower straightening roller seat (33), a straightening clamp (34) and a transmission rod (35). The lower straightening roller seat (33) is fixedly mounted on the straightening fixed plate (31). The transmission rod (35) passes through the upper straightening roller seat (32) and the lower straightening roller seat (33). One end of the transmission rod (35) is clamped to the upper straightening roller seat (32), and the other end is hinged to the straightening clamp (34). The upper straightening roller seat (32) and the lower straightening roller seat (33) are both provided with a plurality of rollers. The rollers on the upper straightening roller seat (32) and the rollers on the lower straightening roller seat (33) are arranged in an alternating manner.

7. A high-precision cable fixed-length cutting device according to claim 6, characterized in that: The straightening mechanism (3) further comprises a small wire-passing ring (36) and a proximity signal sensor (37); the small wire-passing ring (36) is movably mounted on the straightening fixing plate (31); the proximity signal sensor (37) is mounted at one end close to a material outlet of the straightening mechanism (3); and the cable passes through the small wire-passing ring (36) and is transported in the direction of the material outlet of the straightening mechanism (3).

8. The high-precision cable fixed-length cutting device according to claim 1, characterized in that: The cutting assembly (42) comprises a cutting slide (421), an upper cutting knife (422) and a lower cutting knife (423); the upper cutting knife (422) and the lower cutting knife (423) are mounted on the cutting slide (421); and the discharge port of the fixed-length discharge mechanism (4) is arranged between the blades of the upper cutting knife (422) and the lower cutting knife (423).

9. The high-precision cable fixed-length cutting device according to claim 1, characterized in that: The fixed-length discharging mechanism comprises a material taking component (48), the material taking component (48) being arranged at the rear end of the cutting component (42), the material taking component (48) comprising a wire outlet guide rod (481), a material taking plate (482) and a material taking slide (483), the wire outlet guide rod (481) being provided with a wire outlet guide hole (4811), the wire outlet guide hole (4811) being arranged coaxially with a discharging port of the fixed-length discharging mechanism (4), the material taking plate (482) being mounted on the material taking slide (483), and the material taking end surface of the material taking plate (482) being arranged below the wire outlet guide hole (4811).

10. The high-precision cable fixed-length cutting device according to claim 1, characterized in that: The fixed-length discharging mechanism (4) further comprises a clamping assembly (49), the clamping assembly (49) comprising a clamping clamp (491), a rubber hammer (492) and a retaining frame (493), the clamping clamp (491) being mounted on the fixing seat (41), the rubber hammer (492) being mounted on the clamping clamp (491) and abutting against the retaining frame (493), the retaining frame (493) being movably mounted on the fixing seat (41), and the clamping wheel (47) being movably connected to the retaining frame (493).

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