Bending mechanism of wire forming machine

By combining differentiated bending rollers and inner mold components with gear transmission and multi-drive components, the accuracy and adaptability issues of wire forming equipment are solved, achieving efficient and precise wire bending, and improving production efficiency and product quality.

CN223847974UActive Publication Date: 2026-01-30SHENZHEN HUAYIDA SPRING MACHINERY CO LTD
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Patent Information

Application Number
CN202520206574.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-01-30
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Existing wire forming equipment suffers from low bending accuracy, slow speed, and poor adaptability, failing to meet diverse production needs.

Method used

A bending mechanism for a wire forming machine was designed, which adopts a differentiated bending roller structure and inner mold assembly, combined with gear transmission and multiple drive components, to achieve high-precision and high-speed wire bending operation.

Benefits of technology

It improves the precision and consistency of wire bending, enhances adaptability, reduces production costs, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wire rod forming, and particularly discloses a bending mechanism of a wire rod forming machine, which comprises a driving module arranged on an external rack and a bending module arranged on the driving module, the bending module comprises an outer twisting assembly rotationally arranged relative to the driving module, a fourth driving assembly for driving the outer twisting assembly to rotate, a mounting seat connected with the driving module and an inner mold assembly connected with the mounting seat, and the inner mold assembly is assembled in the outer twisting assembly; the outer twisting assembly is provided with a first bending roller and a second bending roller which are used for abutting against and bending an external wire, and the inner die assembly is provided with protruding parts which are matched with the bending rollers to abut against the external wire. The fourth driving assembly drives the bending roller to rotate and bend the external wire rod, and the bent external wire rod abuts against the protruding part and then is further bent; through the arrangement of different bending rollers, the bending mechanism can better meet the bending treatment of various bending requirements and has higher applicability to the bending treatment of wires.
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Description

TECHNICAL FIELD

[0001] The utility model relates to wire forming technical field especially discloses a bending mechanism of wire forming machine. BACKGROUND

[0002] In modern industrial production, the forming processing of wire has an important position. With the continuous improvement of the precision and complexity requirements of various wire products, some simple bending equipment has many problems. For example, the bending precision is low, it is difficult to guarantee the consistency and accuracy of products, the bending speed is slow, the production efficiency is low, it cannot adapt to the rhythm of large-scale production, the adjustability of bending angle and shape is poor, which limits the diversity and flexibility of products. At the same time, for different materials and specifications of wire, the adaptability is limited, and the universal bending operation cannot be realized.

[0003] Due to these limitations, an advanced, efficient, accurate and adaptable bending mechanism of wire forming machine is urgently needed to meet the growing demand of industrial production, improve product quality and production efficiency, reduce cost and broaden the application field of wire products. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a bending mechanism of wire forming machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a bending mechanism of wire forming machine, which comprises a driving module mounted on an external rack, a bending module arranged on the driving module, the bending module comprising an outer torsion assembly rotatably arranged opposite to the driving module, a fourth driving assembly driving the outer torsion assembly to rotate, a mounting seat connected with the driving module and an inner module assembly connected with the mounting seat, the inner module assembly being assembled in the outer torsion assembly; the outer torsion assembly has a first bending roller and a second bending roller for resisting the bending of external wire, and the inner module assembly has a protruding part for resisting the external wire in cooperation with the bending roller; the fourth driving assembly drives the bending roller to rotate and bend the external wire, and the bent external wire is further bent after resisting the protruding part.

[0006] The design of the first bending roller and the second bending roller structure is different, and this differentiated design enables the bending mechanism to handle wires of various shapes, sizes and materials, greatly enhancing its adaptability and flexibility. Different bending rollers can be selected and replaced according to specific bending requirements, thus meeting diversified production requirements. Through close cooperation with the protruding part of the inner module assembly, the first bending roller and the second bending roller of the outer torsion assembly can accurately control the bending angle and shape of the wire. This precise cooperation mechanism helps to achieve high-quality bending effect, reduce scrap rate and improve production efficiency.

[0007] Further, the outer twisting assembly includes an outer twisting shaft connected to the output end of the fourth driving assembly, the outer twisting shaft is rotationally connected to the mounting seat, the outer twisting shaft is provided with an outer twisting head, the outer twisting head is fixedly connected to the outer twisting shaft, the first bending roller and the second bending roller are arranged on the outer twisting head, and the diameter of the first bending roller is larger than that of the second bending roller. The bending roller can be formed as a solid cylindrical structure or a hollow cylindrical structure.

[0008] The difference in diameters of the first bending roller and the second bending roller allows the bending mechanism to be finely adjusted for different wires or different bending requirements. The first bending roller with a larger diameter can be used for initial coarse bending or large-angle bending, while the second bending roller with a smaller diameter can be used for subsequent fine bending or adjustment of the bending angle, thereby achieving more complex and precise bending shapes. Since the outer twisting head is fixedly connected to the outer twisting shaft, when the fourth driving assembly drives the outer twisting shaft to rotate, the outer twisting head can maintain a stable rotating state, ensuring the positional accuracy of the first bending roller and the second bending roller during the bending process. This stable transmission mode helps to improve the accuracy and consistency of the bending.

[0009] Further, the protruding portions on both sides are bent into first arc-shaped portions and second arc-shaped portions with different radii for resisting the outer wire after being bent by the bending rollers, and the radius of the first arc-shaped portion is larger than that of the second arc-shaped portion.

[0010] The protruding portions with different radii can handle wires of different processing sizes and bending requirements, resulting in high bending precision and small bending damage of the wire products. Since the inner mold shaft is detachably connected to the mounting seat, the inner mold shaft can be replaced according to requirements. The design of the first arc-shaped portion and the second arc-shaped portion on the protruding portion not only improves the adaptability and bending effect of the bending mechanism, but also reduces wire damage, improves production efficiency and operation convenience, further enhancing the overall performance and stability of the bending mechanism.

[0011] Further, the inner mold assembly includes an inner mold shaft detachably connected to the mounting seat, the end of the inner mold shaft away from the mounting seat protrudes out of the inner mold shaft to form two protruding portions, and a wire passing groove for accommodating the outer wire is formed between the two protruding portions.

[0012] The wire passing groove formed between the two protruding portions on the inner mold shaft provides an accurate bending positioning space for the outer wire. When the wire is fed into the wire passing groove, its position is accurately defined, thereby ensuring the stability and accuracy of the bending process. This design helps to reduce deviations and errors during the bending process and improves bending accuracy. The fixed connection mode of the inner mold assembly and the design of the protruding portion make the installation and debugging process more simple. The operator can quickly install the inner mold assembly on the mounting seat and adjust the position of the protruding portion and the size of the wire passing groove to adapt to different bending requirements. This simplified operation process reduces the technical requirements for the operator and improves work efficiency.

[0013] Further, the fourth drive assembly includes a fourth drive motor, a first gear, and a second gear meshing with the first gear; the first gear and the second gear are rotationally connected with the mounting seat, the output shaft of the fourth drive motor penetrates the mounting seat and is connected with the first gear, the second gear is fixedly connected with the outer torsion assembly, and the mounting seat is fixedly connected with the drive module.

[0014] Gear transmission has the characteristics of stable transmission ratio and high transmission efficiency, which can provide stable and controllable power support to the outer torsion assembly during the bending process. Gear transmission can amplify the torque output of the motor, so that the outer torsion assembly can exert more force when bending the external wire. This is particularly important for handling thicker or harder wires, helping to improve the efficiency and success rate of bending.

[0015] Further, it further comprises a cutting module, the cutting module has a tool holder arranged on the drive module and a cutter assembled with the tool holder, and the tool holder has a plurality of cutter grooves matched with the cutter.

[0016] The tool holder is designed with a plurality of cutter grooves matched with the cutter, which can be assembled according to different cutting needs. This design helps to ensure the stability and accuracy of the cutter during cutting, so as to achieve high-precision cutting. During the bending process, if the wire needs to be cut to obtain a product of a certain length, the cutting module can quickly complete this task without the need to transfer the wire to other cutting equipment for processing. This integrated design reduces the intermediate links in the production process and improves production efficiency.

[0017] Further, the drive module includes a first drive assembly mounted on the outer frame, a second drive assembly arranged on the first drive assembly, and a third drive assembly arranged on the second drive assembly, the first, second, and third drive assemblies reciprocate relative to each other, and the directions of movement of the first, second, and third drive assemblies are perpendicular to each other.

[0018] The three drive assemblies cooperate with each other to achieve precise reciprocating motion in three perpendicular directions, so that the equipment or workpiece mounted on the module can reach any position in space, greatly improving the accuracy and flexibility of position control. It can meet various complex work requirements, such as precision machining, automated assembly, robotics, etc., and can achieve multi-angle and multi-directional operation of workpieces, improving production efficiency and product quality. Since the movements of the drive assemblies are independent and perpendicular to each other, unnecessary interference and errors are avoided, ensuring the stability and reliability of the movement. For different types of work tasks, the movement parameters and sequence of the three drive assemblies can be adjusted to achieve different operation modes, with strong versatility.

[0019] Further, the first driving assembly comprises a first support plate arranged on the outer frame, a second support plate arranged on the first support plate in reciprocating motion, and a first driver driving the second support plate.

[0020] The first support plate is arranged on the outer frame, providing a firm installation basis for the entire driving module, ensuring that it will not shake or displace due to external interference during operation, and ensuring the stability of the system. The second support plate reciprocates on the first support plate, and its motion direction and distance are accurately controlled by the first driver. This linear motion can meet the requirements of high-precision tasks, such as accurately moving workpieces to designated positions in precision machining. Stable linear motion can reduce energy loss and friction during motion, improving work efficiency. At the same time, it also reduces equipment wear and failure rate, prolonging service life.

[0021] Further, the first driving assembly, the second driving assembly, and the third driving assembly have the same structure.

[0022] Since the three driving assemblies have the same structure, a unified design scheme can be adopted during the design phase, reducing design workload and design cost. There is no need to individually design each driving assembly, improving design efficiency. During production and manufacturing, standardized production processes and components can be used to achieve mass production, reducing production costs. At the same time, it is also convenient for quality control, improving product consistency and reliability. The same structure also makes the three driving assemblies more coordinated during motion, reducing motion errors and instability factors caused by structural differences, and improving system stability.

[0023] The beneficial effects of the utility model are as follows: the first bending roller and the second bending roller have different diameters, so that the bending mechanism can process external wires with different requirements, enhancing its applicability and flexibility; the bending radii of the first arc-shaped part and the second arc-shaped part are different, and the arc-shaped parts with different radii can cope with external wires with different processing sizes and bending requirements, so that the bent wire product has high bending precision and small bending damage, improving the applicability and bending effect of the bending mechanism; the cutter seat is provided with a cutter and a plurality of cutter grooves, simplifying the production process and improving production efficiency; the three driving assemblies of the driving module are driven in stages, which can further control the movement precision of the bending mechanism and better realize high-precision control of the bending process; the proposed bending mechanism of the wire forming machine can better adapt to the bending processing of different wires, control the bending process with higher precision, and have higher bending efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of a bending mechanism of a wire forming machine of the utility model;

[0025] Figure 2 is a first structure schematic view of the bending module of the utility model;

[0026] Figure 3 is a second structure schematic view of the bending module of the utility model;

[0027] Figure 4 is a first local structure schematic view of the bending module of the utility model;

[0028] Figure 5 is a second local structure schematic view of the bending module of the utility model;

[0029] Figure 6 is a local sectional view of the bending module of the utility model;

[0030] Figure 7 is a structure schematic view of the tangent cutting module of the utility model.

[0031] The reference signs include: 1, a driving module; 11, a first driving assembly; 111, a first driver; 112, a first support plate; 113, a second support plate; 12, a second driving assembly; 13, a third driving assembly; 2, a bending module; 21, a fourth driving assembly; 211, a fourth driving motor; 212, a first gear; 213, a second gear; 22, an outer torsion assembly; 221, an outer torsion shaft; 222, an outer torsion head; 224, a first bending roller; 225, a second bending roller; 23, a mounting seat; 24, an inner mold assembly; 241, an inner mold shaft; 242, a protruding part; 2421, a first arc-shaped part; 2422, a second arc-shaped part; 243, a wire passing groove; 3, a tangent cutting module; 31, a cutter seat; 311, a cutter groove; 32, a cutter. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of those skilled in the art, the utility model is further explained below in combination with examples and drawings, and the content mentioned in the implementation manner is not a limitation of the utility model.

[0033] Please refer to Figures 1 to 7The utility model provides a kind of bending mechanism of wire forming machine, including the drive module 1 being mounted on external rack, the bending module 2 being arranged on drive module 1, bending module 2 includes the outer torsion assembly 22 being rotatably arranged relative to drive module 1, the fourth drive assembly 21 of driving outer torsion assembly 22 rotation, the mounting seat 23 being connected with drive module 1 and the inner module assembly 24 being connected with mounting seat 23, and inner module assembly 24 is assembled in outer torsion assembly 22;Outer torsion assembly 22 has the first bending roller 224 and the second bending roller 225 for resisting bending external wire, and inner module assembly 24 has the protruding portion 242 for resisting external wire with bending roller cooperation;The fourth drive assembly 21 drives bending roller to rotate and bend external wire, and external wire after bending further is bent after resisting protruding portion 242.

[0034] When actually used, drive module 1 drives bending module 2 to bend external wire. The mounting seat 23 of drive module 1 actually drives bending module 2 to realize the movement in space, the fourth drive assembly 21 of bending module 2 drives outer torsion assembly 22 to rotate relative to mounting seat 23, and the inner module assembly 24 is fixedly connected with mounting seat 23. The fourth drive assembly 21 actually drives the first bending roller 224 and the second bending roller 225 of different structures on outer torsion assembly 22 to rotate to realize the bending of external wire with the protruding portion 242 of inner module assembly 24.

[0035] Specifically, outer torsion assembly 22 includes the outer torsion shaft 221 connected with the output end of fourth drive assembly 21, the outer torsion shaft 221 is rotatably connected with mounting seat 23, the outer torsion head 222 is arranged on the outer torsion shaft 221, the outer torsion head 222 is fixedly connected with the outer torsion shaft 221, the first bending roller 224 and the second bending roller 225 are arranged on the outer torsion head 222, and the diameter of the first bending roller 224 is greater than that of the second bending roller 225. The bending roller can be formed as a solid cylindrical structure or a hollow cylindrical structure.

[0036] When actually used, the outer torsion head 222 is fixedly connected with the outer torsion shaft 221, the outer torsion shaft 221 is connected with the output end of the fourth drive assembly 21, the stability of outer torsion assembly 22 in the bending process can be better realized, the fourth drive assembly 21 can provide more stable power for the bending process of the first bending roller 224 and the second bending roller 225, and the different diameters of the first bending roller 224 and the second bending roller 225 can better realize the bending effect of different diameter wires and different bending requirement wires.

[0037] Specifically, the protruding portion 242 is bent into the first arc-shaped portion 2421 and the second arc-shaped portion 2422 for resisting the external wire after bending of bending roller, and the curvature of the first arc-shaped portion 2421 is greater than that of the second arc-shaped portion 2422.

[0038] In actual use, the inner mold shaft 241 where the protruding part 242 is located is detachably connected with the mounting seat 23, the protruding part 242 has first and second arc parts with different radii, the arc parts are used for protecting the external wire during the external wire bending process and achieving better bending effect of the external wire, the bending effect of different wires and the protection of the external wire during the bending process can be better achieved by replacing the inner mold shaft 241 or converting the position of the protruding part 242 of the inner mold shaft 241 matched with the arc part of the bending roller.

[0039] Specifically, the inner mold assembly 24 includes the inner mold shaft 241 detachably connected with the mounting seat 23, the end of the inner mold shaft 241 away from the mounting seat 23 protrudes out of the inner mold shaft 241 to form two protruding parts 242, and a wire passing groove 243 for accommodating the external wire is formed between the two protruding parts 242.

[0040] In actual use, the detachable connection of the inner mold shaft 241 with the mounting seat 23 improves the stability of the bending mechanism during the bending process, the two protruding parts 242 are responsible for abutting against the external wire bent by the bending roller to make the external wire have better bending precision and bending effect, and the wire passing groove 243 can limit the external wire to some extent and better realize the stable conveying of the external wire during the bending process.

[0041] Specifically, the fourth driving assembly 21 includes a fourth driving motor 211, a first gear 212, and a second gear 213 meshingly connected with the first gear 212; the first gear 212 and the second gear 213 are rotationally connected with the mounting seat 23, the output shaft of the fourth driving motor 211 penetrates through the mounting seat 23 and is connected with the first gear 212, the second gear 213 is fixedly connected with the outer twisting assembly 22, and the mounting seat 23 is fixedly connected with the driving module 1.

[0042] In actual use, the fourth driving motor 211 drives the first gear 212 to rotate, the first gear 212 drives the second gear 213 to rotate, the second gear 213 drives the outer twisting shaft 221 fixedly connected therewith to rotate, and the gear transmission can amplify the output torque of the fourth driving motor 211, so that the outer twisting assembly 22 can better bend the wire with a larger diameter.

[0043] Specifically, the cutting line module 3 has a cutter seat 31 arranged on the driving module 1 and a cutter 32 assembled with the cutter seat 31, and the cutter seat 31 has a plurality of cutter grooves 311 assembled with the cutter 32.

[0044] In actual use, the tool holder 31 can be installed on the driving module 1 according to needs, and the cutting knife 32 can be assembled in different knife grooves 311 according to actual conditions. The setting of the cutting line module 3 on the driving module 1 saves the installation space of the equipment on the one hand, and on the other hand, because it is installed together with the bending module 2 on the driving module 1, after the bending module 2 bends the external wire, the cutting line module 3 can efficiently cut off the wire product bent and formed, optimizes the production process, and improves the production efficiency.

[0045] Specifically, the driving module 1 includes a first driving assembly 11 installed on an external frame, a second driving assembly 12 arranged on the first driving assembly 11, and a third driving assembly 13 arranged on the second driving assembly 12. The first, second, and third driving assemblies 13 reciprocate with each other, and the directions of motion of the first, second, and third driving assemblies 13 are perpendicular to each other.

[0046] In actual use, the three driving assemblies cooperate with each other to enable precise reciprocating motion in three perpendicular directions, so that the equipment or workpiece installed on the module can reach any position in space, greatly improving the accuracy and flexibility of position control. It can meet various complex work requirements, such as in the fields of precision machining, automated assembly, robotics, etc., enabling multi-angle, multi-directional operation of workpieces, improving production efficiency and product quality. Since the movements of the driving assemblies are independent and perpendicular to each other, unnecessary interference and errors are avoided, thereby ensuring the stability and reliability of the movement. For different types of work tasks, the movement parameters and sequence of the three driving assemblies can be adjusted to achieve various operation modes, with strong versatility.

[0047] Specifically, the first driving assembly 11 includes a first support plate 112 arranged on an external frame, a second support plate 113 reciprocally arranged on the first support plate 112, and a first driver 111 driving the second support plate 113.

[0048] In actual use, the first support plate 112 is arranged on the external frame, providing a firm installation basis for the entire driving module 1, ensuring that it will not shake or displace due to external interference during work, and ensuring the stability of the system. The second support plate 113 reciprocates on the first support plate 112, and its direction and distance of motion are precisely controlled by the first driver 111. This linear motion can meet the requirements of high-precision positioning tasks, such as in precision machining, which can accurately move the workpiece to the specified position. Stable linear motion can reduce energy loss and friction during movement, improving work efficiency. At the same time, it also reduces the wear and failure rate of the equipment, prolonging the service life.

[0049] Specifically, the structures of the first driving assembly 11, the second driving assembly 12, and the third driving assembly 13 are all the same.

[0050] In actual use, since the three driving assemblies have the same structure, a unified design scheme can be adopted in the design stage, reducing the design workload and design cost. There is no need to separately design each driving assembly, improving the design efficiency. In the production and manufacturing process, standardized production processes and parts can be adopted to realize batch production and reduce production costs. At the same time, it is also convenient for quality control, improving the consistency and reliability of the product. The same structure also makes the three driving assemblies more coordinated and consistent in the movement process, reducing the movement errors and instability factors caused by structural differences, and improving the stability of the system.

[0051] In actual use, smaller roller diameters can more accurately control the bending angle and shape of the wire, suitable for precision machining or applications with high bending precision requirements; larger roller diameters are suitable for situations that require larger bending radii or thicker wires. Large-diameter rollers can provide more stable bending force and more uniform bending effect, which helps to reduce stress concentration and deformation of the wire during bending. In addition, large-diameter rollers also have high rigidity and carrying capacity, which can handle heavier wires or higher production speeds.

[0052] The first bending roller 224 with a larger diameter can be used for initial coarse bending or larger angle bending, while the second bending roller 225 with a smaller diameter can be used for subsequent fine bending or adjustment of the bending angle, thereby realizing more complex and precise bending shapes. The protrusions 242 with different radii can cope with wires of different processing sizes and bending requirements, so that the bent wire product has high bending precision and small bending damage. The fixed connection of the inner mold shaft 241 with the mounting seat 23 and the fixed connection of the outer torsion shaft 221 with the second gear 213 can provide more stable and reliable bending effect for the bending mechanism during bending. The tangent cutting module 3 and the bending module 2 are jointly installed on the driving module 1, which can realize quick cutting of the external wire after bending, optimizing the production process and improving the production efficiency. Each driving assembly has an independent driver and support structure, which can ensure precise control within its own movement range, thereby accumulating overall high-precision positioning effect; through the way of dispersed support and step-by-step driving, the driving module 1 can more effectively bear and transfer force, and each support plate plays a role in dispersing the load, while the driver is responsible for providing the necessary power. This design enables the bending mechanism to maintain stable performance and precision when handling heavier or harder wires.

[0053] The above merely describes preferred embodiments of the present application, and for those skilled in the art, according to the idea of the present application, changes can be made in the specific implementation manner and application range, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A bending mechanism of a wire forming machine, comprising a driving module (1) mounted on an external frame, and a bending module (2) arranged on the driving module (1), characterized in that: The bending die set (2) comprises an outer torsion assembly (22) arranged opposite to the driving die set (1), a fourth driving assembly (21) for driving the outer torsion assembly (22) to rotate, a mounting base (23) connected with the driving die set (1), and an inner die assembly (24) connected with the mounting base (23), wherein the inner die assembly (24) is assembled in the outer torsion assembly (22); the outer torsion assembly (22) has a first bending roller (224) and a second bending roller (225) for abutting against the external wire; the inner die assembly (24) has a protruding part (242) for abutting against the external wire in cooperation with the bending rollers; the fourth driving assembly (21) drives the bending rollers to rotate and bend the external wire, and the bent external wire is further bent after abutting against the protruding part (242).

2. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The outer torsion assembly (22) comprises an outer torsion shaft (221) connected with the output end of the fourth driving assembly (21), wherein the outer torsion shaft (221) is rotatably connected with the mounting base (23), the outer torsion shaft (221) is provided with an outer torsion head (222) fixedly connected with the outer torsion shaft (221), the first bending roller (224) and the second bending roller (225) are arranged on the outer torsion head (222), and the diameter of the first bending roller (224) is greater than that of the second bending roller (225).

3. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The protruding part (242) is bent on both sides into a first arc-shaped part (2421) and a second arc-shaped part (2422) having different radii, and the radius of the first arc-shaped part (2421) is greater than that of the second arc-shaped part (2422).

4. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The inner die assembly (24) comprises an inner die shaft (241) detachably connected with the mounting base (23), wherein the end of the inner die shaft (241) away from the mounting base (23) protrudes out of the inner die shaft (241) to form two protruding parts (242), and a wire passing groove (243) for accommodating the external wire is formed between the two protruding parts (242).

5. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The fourth driving assembly (21) comprises a fourth driving motor (211), a first gear (212), and a second gear (213) meshingly connected with the first gear (212), wherein the first gear (212) and the second gear (213) are rotatably connected with the mounting base (23), the output shaft of the fourth driving motor (211) penetrates through the mounting base (23) and is connected with the first gear (212), the second gear (213) is fixedly connected with the outer torsion assembly (22), and the mounting base (23) is fixedly connected with the driving die set (1).

6. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The cutting die set (3) has a cutter base (31) arranged on the driving die set (1) and a cutting knife (32) assembled with the cutter base (31), and the cutter base (31) has a plurality of cutter grooves (311) assembled with the cutting knife (32).

7. The bending mechanism of a wire forming machine according to claim 1, characterized in that: The driving die set (1) comprises a first driving assembly (11) mounted on an external frame, a second driving assembly (12) arranged on the first driving assembly (11), and a third driving assembly (13) arranged on the second driving assembly (12), wherein the first, second, and third driving assemblies (13) reciprocate relative to each other, and the directions of movement of the first, second, and third driving assemblies (13) are perpendicular to each other.

8. The bending mechanism of a wire forming machine according to claim 7, characterized in that: The first driving assembly (11) comprises a first support plate (112) arranged on an outer frame, a second support plate (113) arranged on the first support plate (112) in a reciprocating manner, and a first driver (111) for driving the second support plate (113).

9. The bending mechanism of a wire forming machine according to claim 7, wherein: The first driving assembly (11), the second driving assembly (12) and the third driving assembly (13) are all identical in structure.