A bending cable end shaping method and end shaping device

Abstract

The present invention discloses a method for shaping the ends of bent cables and an end shaping device, comprising: an end shaping device base, a cable clamping and fixing assembly, and an end shaping mold. The cable clamping and fixing assembly is used to clamp and fix the bent cable to the end shaping device base, and the bent cable end shaping mold is used to mold the bent cable end, so that the bent section of the bent cable is bent upward to form a twisted bent cable shaping section, thereby achieving the shaping of the bent cable end. When the shaped bent cable is installed, the bottom of the U-shaped bend of the three-phase bent cable can be staggered in space, so that the bent cable can be smoothly embedded in the stator slot of the linear motor, thereby improving the installation quality and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic levitation transportation, and in particular to a method and a device for shaping the end of a bent cable. Background Art

[0002] Maglev trains offer advantages such as high speed, low energy consumption, low noise, zero pollution, safety, comfort, and minimal maintenance. They hold great promise for development and are a key area of development for rail transit. Currently, commercial maglev lines are operating in Shanghai and Changsha, with several more currently under planning and construction.

[0003] During the construction of the dedicated maglev line, the linear motor stators required were formed using cable bending equipment, with the cables formed into a serpentine cable consisting of multiple continuous U-bends. When these cables are inserted into the linear motor stator's cable slots, the bases of the three-phase U-bends intersect. To prevent interference between the three-phase cables, the bases of the U-bends need to be staggered spatially to ensure smooth insertion into the linear motor stator slots. Therefore, the bases of the U-bends need to be reshaped.

[0004] When shaping a bent cable, a clamping and fixing assembly is used to first fix the parallel section of the bent cable, and then an end shaping mold is used to clamp and push the bent section of the cable to generate displacement, thereby forming a three-dimensional twisted shape.

[0005] After patent search, the patents that are related to this invention mainly include:

[0006] 1. A Chinese invention patent, application number 03129527.4, application date June 26, 2003, publication number CN1283507C, publication date November 8, 2006, entitled "Magnetic Levitation Train Stator Coil Semi-Automatic Laying Combination Vehicle," filed by Aohai Maglev Transportation Development Co., Ltd., consists of a power tractor, an equipment carrier, a formed coil conveyor, an operating platform, and a wire-inserting trolley. The power tractor, equipment carrier, formed coil conveyor, and operating platform are connected by a traction linkage. The wire-inserting trolley is located in the recess of the operating platform. The power tractor is equipped with a diesel generator to power the entire vehicle, and the equipment carrier is equipped with a cable unwinding rack and coil bending equipment. However, the patent does not cover end shaping methods or shaping devices.

[0007] 2. The Chinese invention patent with application number "202011372712.8", application date "2020.11.30", publication number "CN112688505A", publication date "2021.04.20", titled "Magnetic Levitation Long Stator Coil Laying Vehicle System", and applicant "Aohai Installation Engineering Group Co., Ltd." discloses a magnetic levitation long stator coil laying vehicle system, comprising: car No. 1, whose body recess is loaded with cable drums; car No. 2, whose body recess is equipped with cable bending equipment for bending the cable conveyed by the cable drum of car No. 1 into long stator coils; car No. 3, whose body is provided with external operating platforms on both sides for receiving the long stator coils conveyed by car No. 2. However, the patent does not involve end shaping methods and shaping devices.

[0008] 3. The Chinese invention patent with application number "202110165896.9", application date "2021.02.07", publication number "CN112510939A", publication date "2021.03.16", name "Automatic bending device and method for magnetic levitation long stator coil", and applicant "Aohai Installation Engineering Group Co., Ltd." discloses an automatic bending device and method for magnetic levitation long stator coil, including a first motion mechanism, a second motion mechanism, a third motion mechanism and a control device. The control device controls the motion relationship between the first motion mechanism, the second motion mechanism and the third motion mechanism to realize the automated operation of bending the cable into a magnetic levitation long stator coil, which can improve bending efficiency, bending accuracy and reduce labor costs. However, the patent also does not involve end shaping methods and shaping devices. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a bending cable end shaping method and end shaping device in view of the defects existing in the prior art.

[0010] To address the above-mentioned technical issues, the present invention provides a method for shaping the ends of a bent cable. The bent cable is formed by bending the cable to form a series of U-shaped bends, consisting of parallel segments and curved segments. The bottom of the U-shaped bend is molded to form a three-dimensional twisted shape. When the bent cable is inserted into the stator slot of a linear motor, the three phases of the bent cable are spatially staggered, preventing interference between the three phases and ensuring smooth insertion.

[0011] Furthermore, the parallel section of the bent cable is first fixed on a plane, and then a pressure perpendicular to the fixed plane is applied to the bent section of the bent cable, so that the bottom of the U-shaped bend forms a three-dimensional twisted shape.

[0012] The method for shaping the bent cable end comprises the following steps:

[0013] S1: Use a clamp to fix three adjacent parallel sections of the bent cable on a horizontal plane;

[0014] S2: Use the mold to clamp the bent cable segments on both sides;

[0015] S3: Using a hydraulic cylinder to push the mold vertically, the bent section of the cable clamped in the mold is displaced vertically to form a three-dimensional twisted shape;

[0016] S4: Release the clamp and the mold, and push the bent cable into the two U-bend intervals;

[0017] S5: Repeat steps S1 to S4 to shape all the bent cable sections of the bent cable.

[0018] An end shaping device according to the above-mentioned method for shaping a bent cable end: the end shaping device comprises: an end shaping device base, a cable clamping and fixing assembly, and an end shaping die; a plurality of cable clamping and fixing assemblies are spaced apart in the middle of the end shaping device base, and the end shaping dies are spaced apart on both sides of the cable clamping and fixing assemblies; the cable clamping and fixing assemblies clamp and fix the parallel section of the bent cable, and the end shaping die clamps and pushes the curved section of the bent cable vertically, thereby forming a twisted cable shaping section.

[0019] Furthermore, the cable clamping and fixing assembly includes: a clamping punch and a clamping die; the clamping punch is provided with a clamping protrusion, and the clamping die is provided with a clamping groove, the width of the clamping groove is not less than the diameter of the bent cable, and the clamping protrusion can be inserted into the clamping groove to clamp and fix the bent cable.

[0020] Furthermore, the pressing die is provided with two parallel pressing baffles, which form a pressing groove. The pressing protrusion is provided with pressing baffle grooves on both sides, which cooperate with the pressing baffles. When the two pressing baffles are respectively inserted into the two pressing grooves, the pressing protrusion is inserted into the pressing groove. When the top of the pressing baffle is blocked by the bottom of the pressing groove, the pressing protrusion cannot be further inserted into the pressing groove, thereby acting as a limiter to prevent the bent cable between the pressing convex and pressing die from being flattened and thus avoiding damage to the bent cable.

[0021] Furthermore, the pressing punch is fixed on the base of the end shaping device in the vertically upward direction of the pressing protrusion, the pressing die and the pressing lifting cylinder are arranged vertically above the pressing punch, and the pressing die and the pressing lifting cylinder are connected with the T-shaped head through the T-slot. The pressing lifting cylinder drives the pressing die to move vertically, so that the pressing groove moves relative to the pressing punch, thereby clamping and fixing the bent cable.

[0022] Furthermore, the end shaping mold includes: a shaping die and a shaping punch; the shaping die is provided with a shaping groove, the shaping punch is provided with a square columnar shaping protrusion, the top of the shaping protrusion is provided with an arc groove, the width of the shaping protrusion is not less than the diameter of the bent cable, and the shaping protrusion can be inserted into the shaping die; when shaping the end of the bent cable, the arc groove at the top of the shaping protrusion clamps the bent section of the bent cable, pressing the bent section of the bent cable into the shaping groove, thereby clamping and fixing the bent section of the bent cable for end face shaping.

[0023] Furthermore, it also includes: a shaping lifting cylinder 1 and a shaping lifting cylinder 2; the shaping lifting cylinder 2 is fixedly installed on the base of the end shaping device, the shaping die is installed on the top of the telescopic rod of the shaping lifting cylinder 2, and the shaping lifting cylinder 2 drives the shaping die to rise and fall vertically; the shaping lifting cylinder 1 is fixedly installed above the shaping die, the shaping punch is installed on the top of the telescopic rod of the shaping lifting cylinder 1, and the shaping lifting cylinder 1 drives the shaping punch to rise and fall vertically toward the shaping die.

[0024] Furthermore, the output force of the shaping lifting cylinder 2 is greater than the output force of the shaping lifting cylinder 1. When shaping the end of the bent cable, the shaping lifting cylinder 2 pushes the shaping die, the shaping punch and the bent cable bending section clamped between the shaping die and the shaping punch to rise as a whole, causing the bent cable bending section to bend upward, thereby forming a twist-shaped bent cable shaping section.

[0025] The present invention has the following beneficial effects: a compression projection with an arcuate groove is used to push the bent cable into the arcuate groove of the compression groove, thereby clamping and securing the bent cable. Simultaneously, a bent cable end shaping die is used to shape the bent cable end. During installation, the bottoms of the three-phase U-bends can be spatially staggered, allowing the bent cables to be smoothly inserted into the stator slots of the linear motor, thereby improving installation quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the bent cable of the linear motor stator.

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the linear motor stator cable bending equipment.

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the bending cable end shaping device.

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the cable clamping and fixing component.

[0030] Figure 5 This is a front view of the cable clamping and fixing assembly.

[0031] Figure 6This is a schematic diagram of the three-dimensional structure of the cable clamp when fixing the cable;

[0032] Figure 7 Schematic diagram of the three-dimensional structure of the end shaping mold Figure 1 ,

[0033] Figure 8 Schematic diagram of the three-dimensional structure of the end shaping mold Figure 2 ,

[0034] Figure 9 This is a front view of the end shaping die.

[0035] Figure 10 This is a schematic diagram of the three-dimensional structure when the end of the bent cable is reshaped.

[0036] In the figure: 100—cable straightening device;

[0037] 200—U-shaped bending device;

[0038] 300—Bent cable pushing device;

[0039] 400—end shaping device; 410—end shaping device base; 420—cable clamping and fixing assembly, 421—clamping punch, 422—clamping convex block, 423—clamping baffle groove, 424—clamping positioning hole, 425—clamping positioning pin, 426—clamping baffle, 427—clamping groove, 428—clamping die, 429—clamping lifting cylinder, R422—clamping convex block arc groove radius, R427—clamping groove arc groove radius, K427—clamping concave Groove width; 430—end shaping die, 431—shaping die, 432—shaping groove, 433—shaping die slope, 434—shaping die baffle, 435—shaping positioning hole, 436—shaping positioning pin, 437—shaping bump, 438—shaping punch, 439—shaping lift cylinder 1, 440—shaping lift cylinder 2, R432—shaping groove bottom arc groove radius, R437—shaping bump top arc groove radius, K437—shaping bump width;

[0040] 500—integral base;

[0041] 900—curved cable, 901—curved cable straight section, 902—curved cable parallel section, 903—curved cable curved section, 904—curved cable shaping section, L1—U-bend spacing, d—curved cable diameter, X—cable transmission direction, Z—vertical. DETAILED DESCRIPTION

[0042] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings:

[0043] like Figure 1As shown, the linear motor stator required for the construction of the dedicated maglev line is formed using cable bending equipment to form a curved cable 900, which is then transported to the installation site for installation. Curved cable 900 is a serpentine structure consisting of multiple continuous U-shaped bends, including a straight segment 901, a parallel segment 902, a curved segment 903, or a shaped segment 904. The U-shaped bends are spaced at a distance of L1.

[0044] like Figure 2 As shown, the linear motor stator cable bending device of the present invention includes: a cable straightening device 100, a U-shaped bending device 200, a bent cable pushing device 300, an end shaping device 400 and an integral base 500; the cable straightening device 100, the U-shaped bending device 200, the bent cable pushing device 300 and the end shaping device 400 are sequentially arranged on the integral base 500 and are hoisted or transported as a whole through the integral base 500.

[0045] End shaping device 400 Figure 3 As shown, the device comprises an end shaping device base 410, a cable clamping and fixing assembly 420, and an end shaping mold 430. Multiple cable clamping and fixing assemblies 420 are installed at intervals in the middle of the end shaping device base 410, and the end shaping molds 430 are installed on both sides of the cable clamping and fixing assemblies 420. The cable clamping and fixing assemblies 420 clamp and fix the curved cable parallel section 902 of the curved cable 900 to the end shaping device base 410. The end shaping mold 430 clamps and pushes the curved cable section 903 of the curved cable 900, causing it to bend, forming a three-dimensional twisted curved cable shaping section 904.

[0046] The cable clamping and fixing assembly 420 is as follows Figure 4 and 5 As shown, it includes: a pressing punch 421, a pressing die 428 and a pressing lifting cylinder 429.

[0047] A pressing punch 421 is fixedly mounted on the end shaping device base 410. A pressing protrusion 422 is provided on the pressing punch 421. The top of the pressing protrusion 422 is provided with an arcuate groove. The radius R422 of the arcuate groove is no less than d / 2 of the radius of the bent cable to prevent damage to the cable insulation during the pressing process. Two parallel pressing baffle grooves 423 are provided on either side of the pressing protrusion 422. The outer sides of each pressing baffle groove 423 are provided with a pressing positioning hole 424.

[0048] The pressing and lifting cylinder 429 is fixedly mounted above the pressing punch 421. A T-shaped head is provided at the top of the telescopic rod of the pressing and lifting cylinder 429. A T-shaped slot is provided in the pressing die 428. Through the T-shaped slot and the T-shaped head, the pressing die 428 is mounted at the lower end of the telescopic rod of the pressing and lifting cylinder 429, facing the pressing punch 421. This T-slot and T-shaped head arrangement creates a floating connection, which protects the telescopic rod of the pressing and lifting cylinder 429 from radial forces, improves the stress response of the pressing and lifting cylinder 429, and increases its service life, thereby enhancing the reliability and stability of the device.

[0049] Two parallel pressing baffles 426 are provided on the pressing die 428, forming a pressing groove 427. The bottom of the pressing groove 427 is an arc-shaped groove, and the radius R427 of the arc-shaped groove is no less than the radius d / 2 of the bent cable. The width K427 of the pressing groove is no less than the diameter d of the bent cable. The pressing protrusion 422 can be inserted into the pressing groove 427 to press and secure the bent cable 900. The pressing die 428 is provided with a pressing positioning pin 425, which faces the pressing positioning hole 424.

[0050] During the compression process Figure 6 As shown, the curved cable parallel section 902 of the curved cable 900 is first placed on the arcuate groove at the top of the pressing protrusion 422. The pressing elevating cylinder 429 then lowers the pressing die 428. During the lowering process of the pressing die 428, the pressing positioning pin 425 cooperates with the pressing positioning hole 424 to ensure accurate alignment between the pressing protrusion 421 and the pressing die 428. As the pressing die 428 continues to descend, the pressing baffle 426 enters the pressing groove 427, thereby pressing and securing the curved cable parallel section 902 to the end shaping device base 410. When the pressing baffle 426 contacts the bottom of the pressing groove 427, it acts as a stop. By controlling the length of the pressing baffle 426, the height of the gap in the arcuate groove between the pressing protrusion 422 and the pressing groove 427 is slightly less than the diameter d of the curved cable. This ensures that the parallel section 902 of the curved cable can be clamped and fixed, while also preventing the curved cable 900 from being flattened and damaging the insulation layer.

[0051] Bending cable end shaping die Figures 7 to 9 As shown, it includes: a shaping die 431, a shaping punch 438 and a shaping lifting cylinder 439.

[0052] The shaping die 431 is provided with a shaping groove 432, which consists of a shaping die slope 433 on one side, a straight edge on the other side, and an arcuate groove at the bottom. The arcuate groove radius R432 at the bottom of the shaping groove is no less than the radius d / 2 of the bent cable. The shaping groove 432 is a three-dimensionally twisted surface, so that the bottom of the U-bend of the bent cable forms a three-dimensional twisted shape similar to the shaping groove 432 after shaping. The shaping die 431 is also provided with a shaping positioning hole 435, which is located on the end surface of the shaping die 431 facing the shaping punch 438.

[0053] The shaping punch 438 is equipped with a square-cylindrical shaping projection 437, whose width K437 is no less than the diameter d of the bent cable. The top of the shaping projection 437 is provided with an arcuate groove, whose radius R437 is no less than d / 2 of the radius of the bent cable. This accommodates round cables, increases the contact area with the cable, reduces pressure, and avoids damage to the cable insulation. The shaping punch 438 is equipped with a shaping positioning pin 436, located on the end surface of the shaping punch 438 facing the shaping die 431. During the molding process, the shaping positioning pin 436 cooperates with the shaping positioning hole 435 to ensure accurate alignment of the shaping punch 438 and the shaping die 431, preventing damage to the cable insulation caused by misalignment between the shaping punch 438 and the shaping die 431.

[0054] Shaping lift cylinder 439 is fixedly mounted above the shaping die 431. A T-shaped head is provided at the top of the telescopic rod of shaping lift cylinder 439. Shaping punch 438 is provided with a T-shaped slot, which cooperates with the T-shaped head to mount shaping punch 438 on the top of the telescopic rod of shaping lift cylinder 439. Shaping lift cylinder 439 can lift and lower shaping punch 438 toward shaping die 431, allowing shaping bump 437 to be inserted into shaping die 431. This T-shaped slot and T-shaped head arrangement creates a floating connection, protecting the telescopic rod of shaping lift cylinder 439 from radial forces, improving the stress response of shaping lift cylinder 439, and extending the service life of shaping lift cylinder 439, thereby enhancing the reliability and stability of the device.

[0055] In the molding process Figure 10As shown, the second shaping lift cylinder 440 is mounted vertically on the end shaping device base 410 with a telescopic rod facing upward. The shaping die 431 is mounted on the top of the telescopic rod of the second shaping lift cylinder 440. The second shaping lift cylinder 440 drives the shaping die 431 up and down along the vertical direction Z. When shaping the cable end, the first shaping lift cylinder 439 first drives the shaping protrusion 437 downward. The arcuate groove at the top of the shaping protrusion 437 engages the curved cable segment 903, pressing the curved cable segment 903 into the shaping groove 432, thereby locking and fixing the curved cable segment 903 and molding the curved cable segment 903 into a twisted shape similar to the shaping groove 432.

[0056] Since the output force of the shaping lifting cylinder 2 440 is greater than the output force of the shaping lifting cylinder 1 439, the shaping lifting cylinder 2 440 pushes the shaping die 431, the shaping punch 438 and the bent cable bending section 903 clamped between the shaping die 431 and the shaping punch 438 to rise as a whole, causing the bent cable bending section 903 to bend upward to form a twist-shaped bent cable shaping section 904, thereby realizing the shaping of the bent cable end.

[0057] The bending cable end shaping includes the following steps:

[0058] S1: Using a clamp, fix three adjacent parallel sections 902 of the curved cable 900 on a horizontal plane;

[0059] S2: clamping the bent cable segments 903 on both sides with a mold;

[0060] S3: Using a hydraulic cylinder to push the mold vertically, so that the cable bending section 903 clamped in the mold is displaced vertically to form a three-dimensional twisted shape;

[0061] S4: Release the clamp and the mold, and push the bent cable 900 into the distance L1 between the two U-bends;

[0062] S5: Repeat steps S1 to S4 to shape all the curved cable segments 903 of the curved cable 900 .

[0063] In summary, the curved cable is pressed into place using a compression block with an arc-shaped groove. Simultaneously, the cable end is shaped using a cable end shaping die. During installation, the bases of the three-phase U-bends are spatially staggered, allowing the cables to fit smoothly into the linear motor stator slots, improving installation quality and efficiency.

[0064] The above embodiments are only for the purpose of illustrating the present invention, and are not intended to limit the present invention. Those skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should be defined by the claims.

Claims

1. A method for shaping the end of a bent cable, wherein the bent cable (900) comprises a plurality of continuous U-shaped bends formed by a bent cable parallel section (902) and a bent cable curved section (903); characterized in that: The invention uses an end shaping device (400) to bend a cable to form a bent cable (900); the bottom of the bent U-shaped bend is molded so that the bottom of the U-shaped bend of the bent cable (900) forms a three-dimensional twisted shape. When the bent cable (900) is embedded in the stator slot of the linear motor, the three-phase bent cables (900) can be staggered in space to avoid mutual interference between the three-phase bent cables (900), so that the bent cable (900) can be smoothly embedded in the stator slot of the linear motor. The end shaping device (400) comprises: an end shaping device base (410), a cable clamping and fixing assembly (420), and an end shaping mold (430); a plurality of cable clamping and fixing assemblies (420) are arranged at intervals in the middle of the end shaping device base (410); and end shaping molds (430) are arranged at intervals on both sides of the cable clamping and fixing assemblies (420); the cable clamping and fixing assemblies (420) are used to clamp and fix the parallel section (902) of the bent cable, and the end shaping mold (430) is used to clamp and push the bent section (903) of the bent cable in the vertical direction (Z); The end shaping mold (430) comprises: a shaping die (431) and a shaping punch (438); the shaping die (431) is provided with a shaping groove (432); the shaping punch (438) is provided with a square column-shaped shaping protrusion (437); the top of the shaping protrusion (437) is provided with an arc groove; the shaping protrusion width (K437) is not less than the diameter (d) of the bent cable; the shaping protrusion (437) can be inserted into the shaping die (431); when shaping the end of the bent cable, the top arc groove of the shaping protrusion (437) clamps the bent cable bending section (903), pressing the bent cable bending section (903) into the shaping groove (432), thereby bending the bent cable bending section (903) The end shaping device (400) further comprises: a shaping lifting cylinder 1 (439) and a shaping lifting cylinder 2 (440); the shaping lifting cylinder 2 (440) is fixedly mounted on the end shaping device base (410), the shaping die (431) is mounted on the top of the telescopic rod of the shaping lifting cylinder 2 (440), and the shaping lifting cylinder 2 (440) drives the shaping die (431) to be lifted and lowered in the vertical direction (Z); the shaping lifting cylinder 1 (439) is fixedly mounted above the shaping die (431), the shaping punch (438) is mounted on the top of the telescopic rod of the shaping lifting cylinder 1 (439), and the shaping lifting cylinder 1 (439) drives the shaping punch (438) to be lifted and lowered in the vertical direction (Z) toward the shaping die (431).

2. The method for shaping a bent cable end according to claim 1, wherein: The method involves first fixing the parallel section (902) of the bent cable on a plane, and then applying pressure perpendicular to the fixed plane to the bent section (903) of the bent cable, so that the bottom of the U-shaped bend forms a three-dimensional twisted shape.

3. The method for shaping a bent cable end according to claim 2, comprising the following steps: S1: Using a clamp, fix three adjacent curved cable parallel sections (902) of the curved cable (900) on a horizontal plane; S2: clamping the bent cable segments (903) on both sides with a mold; S4: using a hydraulic cylinder to push the mold vertically, so that the cable bending section (903) clamped in the mold is displaced vertically to form a three-dimensional twisted shape; S5: Release the clamp and the mold, and push the bent cable (900) into the two U-bend distances (L1); S6: Repeat steps S1 to S5 to shape all the bent cable curved sections (903) of the bent cable (900).

4. The method for shaping a bent cable end according to claim 3, wherein: The cable clamping and fixing assembly (420) comprises: a clamping convex mold (421) and a clamping concave mold (428); the clamping convex mold (421) is provided with a clamping protrusion (422), and the clamping concave mold (428) is provided with a clamping groove (427); the width (K427) of the clamping groove is not less than the diameter (d) of the bent cable; the clamping protrusion (422) can be inserted into the clamping groove (427) to clamp and fix the bent cable (900).

5. The method for shaping a bent cable end according to claim 4, wherein: Two parallel pressing baffles (426) are provided on the pressing die (428), and the two parallel pressing baffles (426) form a pressing groove (427); pressing baffle grooves (423) that cooperate with the pressing baffles (426) are provided on both sides of the pressing protrusion (422); when the two pressing baffles (426) are respectively inserted into the two pressing grooves (427), the pressing protrusion (422) is inserted into the pressing groove (427).

6. The method for shaping a bent cable end according to claim 5, wherein: The pressing punch (421) is fixed on the end shaping device base (410) in the vertically upward direction of the pressing protrusion (422), the pressing die (428) and the pressing lifting cylinder (429) are arranged vertically above the pressing punch (421), the pressing die (428) and the pressing lifting cylinder (429) are connected to each other through a T-shaped groove and a T-shaped head, and the pressing lifting cylinder (429) drives the pressing die (428) to move vertically, so that the pressing groove (427) moves relative to the pressing punch (421), thereby pressing and fixing the bent cable (900).

7. The method for shaping a bent cable end according to claim 6, wherein: The output force of the shaping lifting cylinder 2 (440) is greater than the output force of the shaping lifting cylinder 1 (439). When shaping the end of the bent cable, the shaping lifting cylinder 2 (440) pushes the shaping die (431), the shaping punch (438) and the bent cable bending section (903) clamped between the shaping die (431) and the shaping punch (438) to rise as a whole, so that the bent cable bending section (903) bends upward, thereby forming a bent cable shaping section (904).

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