3D bending machine for wire rod

Abstract

The utility model relates to a 3D (three-dimensional) bending machine for wire rods, which is used for bending orthodontic wire rods and comprises a rack, and a feeding mechanism, a straightening mechanism, a wire feeding mechanism, a clamping mechanism and a three-dimensional bending mechanism which are arranged on the rack and are sequentially arranged along the bending sequence of the wire rods, the feeding mechanism comprises a guide disc and a feeding disc which are horizontally and adjustably arranged on the upper portion and the lower portion of the rack respectively, the guide disc, the straightening mechanism, the wire feeding mechanism and the clamping mechanism are arranged in a linear mode, and after being led out of the feeding disc, an orthodontic wire sequentially winds around the guide disc, the straightening mechanism, the wire feeding mechanism and the clamping mechanism and is bent and formed by the three-dimensional bending mechanism; the straightening mechanism is horizontally and adjustably arranged on the rack, the wire feeding mechanism and the clamping mechanism are oppositely arranged, the three-dimensional bending mechanism is vertically arranged on the rack, and the three-dimensional bending mechanism comprises a lifting electric cylinder and a rotary bending assembly controlled by the lifting electric cylinder. According to the orthodontic wire bending machine, mechanical equipment is adopted to bend orthodontic wires, and the accuracy and the stability during wire bending are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dental medical equipment manufacturing technology, and in particular to a wire 3D bending machine. Background Technology

[0002] Orthodontics refers to the use of specific orthodontic appliances to apply force to the teeth, thereby correcting facial and jawbone developmental abnormalities and adjusting misaligned teeth. The orthodontic appliances use braces, and a crucial component of these appliances is the archwire. As orthodontic wire, the bent archwire generates a specific orthodontic force, prompting tooth movement. Therefore, the precision of the archwire bending plays a decisive role in the treatment outcome.

[0003] Conventional orthodontic filament processing primarily relies on manual operation or simple mechanical assistance. Doctors manually bend the filaments based on experience and visual observation. This process is not only time-consuming and labor-intensive, but also results in significant variations in filament shape between different doctors due to manual bending, making it difficult to guarantee precision and consistency. This directly affects the accuracy and stability of orthodontic treatment, potentially leading to uneven force on teeth, prolonged treatment time, and even impacting treatment outcomes.

[0004] While early, simple mechanical aids could achieve a certain degree of automated bending, their functions were limited and they lacked adaptability to the special materials and complex shapes required for orthodontic wires. Commonly used orthodontic wires, such as nickel-titanium alloys, have shape memory properties and are relatively rigid, making it difficult for traditional equipment to achieve high-precision three-dimensional bending without damaging the wire's performance.

[0005] With the continuous advancement of oral medical technology and the increasing popularity of personalized orthodontic solutions, higher demands are being placed on the precision processing of orthodontic filaments. Therefore, a 3D bending machine for orthodontic filaments is proposed. Summary of the Invention

[0006] To address the problems of time-consuming, labor-intensive, and inaccurate manual bending of orthodontic wires, this invention provides a 3D wire bending machine. By constructing a high-precision wire clamping, conveying, and three-dimensional bending mechanism, it can achieve machine bending while ensuring accuracy and stability when bending small-sized wires.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A 3D bending machine for bending orthogonal wires includes a frame and a feeding mechanism, a straightening mechanism, a wire feeding mechanism, a clamping mechanism and a three-dimensional bending mechanism arranged on the frame in sequence along the bending sequence of the wires.

[0009] The feeding mechanism includes a guide plate and a feeding plate that are horizontally adjustable on the upper and lower sides of the frame, which facilitates the adjustment of the position of the guide plate and the feeding plate. Orthogonal wire is wound on the feeding plate. The guide plate, straightening mechanism, wire feeding mechanism and clamping mechanism are arranged in a straight line on the same plane to ensure that the orthogonal wire is transported in a straight line. After the orthogonal wire is led out from the feeding plate, it passes through the guide plate, straightening mechanism, wire feeding mechanism and clamping mechanism in sequence, and is bent into shape by the three-dimensional bending mechanism.

[0010] The straightening mechanism is horizontally adjustable on the frame, which facilitates the adjustment of the straightening mechanism's position. The wire feeding mechanism and the clamping mechanism are arranged opposite to each other. The three-dimensional bending mechanism is vertically arranged on the frame. The three-dimensional bending mechanism includes a lifting electric cylinder and a rotating bending component controlled by the lifting electric cylinder, which facilitates the control of the rotating bending component to move up and down.

[0011] Furthermore, the frame is provided with horizontally arranged optical rods, the number of which is two arranged at intervals. Each optical rod is provided with multiple sliders with locking function, which facilitate movement and fixation on the optical rod.

[0012] Furthermore, a feeding plate is slidably mounted on the optical rod, and the feeding plate is connected to the optical rod via a slider with a locking function, which facilitates the sliding and locking of the feeding plate. A feeding mandrel is horizontally mounted below the feeding plate.

[0013] The feeding disc has an I-beam structure and is mounted on the feeding mandrel. The axial direction of the feeding disc is perpendicular to the axial direction of the guide rod, and the feeding disc is arranged below the guide rod.

[0014] Furthermore, a guide frame is slidably mounted on the optical rod. The guide frame is connected to the optical rod via a slider with a locking function, which facilitates the sliding and fixing of the guide frame. The guide frame is equipped with a guide disc for guiding the wire, and the guide discs are arranged above the optical rod.

[0015] The guide disc is evenly distributed with multiple guide wheel groups around its circumference. The orthodontic cable passes between the guide wheel groups. Each guide wheel group includes two guide wheels arranged inside and outside the main cable, which clamp the orthodontic cable. This facilitates the guidance and restraint of the orthodontic cable.

[0016] Furthermore, the straightening mechanism includes a straightening plate and a straightener disposed on the straightening plate for correcting the straightness of the wire. The straightening plate is slidably disposed on the optical rod, and the straightening plate is connected to the optical rod through a slider with a locking function, which facilitates the sliding and fixing of the straightening plate.

[0017] Furthermore, the wire feeding mechanism includes a linear module and a first fast-rotating chuck controlled by the linear module, which facilitates driving the fast-rotating chuck to reciprocate in a straight line. The clamping mechanism includes a second fast-rotating chuck and a wire feeding nozzle controlled by the second fast-rotating chuck.

[0018] The first and second fast-rotating chucks are arranged opposite each other. After the orthodontic wire passes through the first and second fast-rotating chucks in sequence, it is guided by the wire feed nozzle to the three-dimensional bending mechanism.

[0019] Furthermore, the lifting electric cylinders are arranged vertically, and a lifting plate is provided on the lifting electric cylinders. The rotating bending assembly is provided on the lifting plate. The rotating bending assembly includes a fixed inner shaft, a rotary motor, and a rotating outer cylinder controlled by the rotary motor.

[0020] The fixed inner shaft is fixedly connected to the lifting plate. A bending mold 1 is provided at the top of the fixed inner shaft. The rotating outer cylinder is sleeved outside the fixed inner shaft and is rotatably connected to the lifting plate. A bending mold 2 is provided at the top of the rotating outer cylinder. The bending mold 1 and the bending mold 2 cooperate to bend the wire into shape.

[0021] Furthermore, the frame is also equipped with an image acquisition device for capturing the bending contour of orthodontic cables.

[0022] The beneficial effects of this utility model through the above technical solution are:

[0023] This utility model features a rational structural design. The orthodontic wire sequentially passes through a guide plate, a straightening mechanism, a wire feeding mechanism, and a clamping mechanism before entering the three-dimensional bending mechanism. Through the coordinated operation of the wire feeding mechanism, clamping mechanism, and three-dimensional bending mechanism, the orthodontic wire is continuously fed in and bent. The entire bending process is highly automated, improving bending accuracy and significantly reducing reliance on manual labor, saving substantial labor costs and solving the problems of poor accuracy and low efficiency associated with manual bending.

[0024] The wire feeding mechanism of this invention enables the forward movement of the steel wire, while the three-dimensional bending mechanism bends the fed steel wire. The wire feeding mechanism and the three-dimensional bending mechanism work together to accurately control the bending angle, speed, and position, completing various three-dimensional shape bends and meeting the stringent high-precision requirements of orthodontic treatment for steel wires. Simultaneously, the accuracy of the processing reduces material waste caused by processing errors, rationally utilizes the steel wire, improves material utilization, reduces waste generation, and lowers raw material costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a wire 3D bending machine according to this utility model.

[0026] Figure 2 This utility model relates to a 3D bending machine for wires. Figure 1 One of the enlarged schematic diagrams of a part of the image.

[0027] Figure 3 This utility model relates to a 3D bending machine for wires. Figure 1 The second enlarged schematic diagram of a part of the middle section.

[0028] Figure 4 This is a schematic diagram showing the arrangement of various mechanisms in a wire 3D bending machine according to this utility model.

[0029] Figure 5 This is a schematic diagram of the feeding mechanism of a wire 3D bending machine according to this utility model.

[0030] Figure 6 This is a schematic diagram of the wire feeding mechanism of a 3D wire bending machine according to this utility model.

[0031] Figure 7 This is a schematic diagram of the clamping mechanism of a wire 3D bending machine according to this utility model.

[0032] Figure 8 This is a schematic diagram of the three-dimensional bending mechanism of a wire 3D bending machine according to this utility model.

[0033] The attached diagram is labeled as follows: 1. Frame, 2. Feeding mechanism, 21. Feeding tray, 22. Guide tray, 3. Straightening mechanism, 31. Straightening plate, 32. Straightener, 4. Wire feeding mechanism, 41. Linear module, 42. Quick-return chuck one, 5. Clamping mechanism, 51. Quick-return chuck two, 52. Wire feeding nozzle, 6. Three-dimensional bending mechanism, 61. Lifting electric cylinder, 62. Rotary bending assembly, 7. Guide rod, 8. Slider, 9. Feeding plate, 10. Feeding mandrel, 11. Guide frame, 12. Guide wheel, 13. Lifting plate, 14. Fixed inner shaft, 15. Rotary motor, 16. Rotary outer cylinder, 17. Bending die one, 18. Bending die two, 19. Image acquisition equipment. Detailed Implementation

[0034] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0035] Example 1:

[0036] like Figures 1-8 As shown, a 3D bending machine for bending orthogonal wires includes a frame 1 and a feeding mechanism 2, a straightening mechanism 3, a wire feeding mechanism 4, a clamping mechanism 5 and a three-dimensional bending mechanism 6 arranged on the frame 1. The feeding mechanism 2, the straightening mechanism 3, the wire feeding mechanism 4, the clamping mechanism 5 and the three-dimensional bending mechanism 6 are arranged sequentially along the bending sequence of the wire.

[0037] The feeding mechanism 2 includes a feeding tray 21 that is horizontally adjustable on the lower side of the frame 1 and a guide tray 22 that is horizontally adjustable on the upper side of the frame 1. The feeding tray 21 has an I-beam structure and carries orthogonal wires. That is, the orthogonal wires are wound around the feeding tray 21 and stored by the feeding tray 21.

[0038] During installation, the feeding tray 21 has horizontally arranged guide rods 7 on the frame 1, with two guide rods 7 spaced apart. Each guide rod 7 has multiple locking sliders 8, which are SCS series box-type locking linear sliders 8. The sliders 8 are existing technology. The sliders 8 can slide freely on the guide rods 7 and can be locked by manually adjusting the handles on the sliders 8, thus stopping the sliders 8 from moving. Further details are omitted here.

[0039] Therefore, a feeding plate 9 is slidably mounted on the guide rod 7. The feeding plate 9 is a bent "L"-shaped plate and is connected to the guide rod 7 via two sliders 8 with locking functions. The feeding plate 9 can move and lock on the guide rod 7. A feeding spindle 10 is horizontally mounted below the feeding plate 9 and is rotatably connected to the feeding plate 9. A rotation damper is installed between the feeding plate 9 and the feeding spindle 10 to ensure the rotation of the feeding spindle 10 while providing a certain amount of rotational resistance.

[0040] The feeding tray 21 is mounted on the feeding mandrel 10, and the two are fitted together to ensure their relative fixation. Under the action of the rotation damper, the feeding tray 21 is difficult to rotate easily, providing a certain tension force during wire feeding. The axial direction of the feeding tray 21 is perpendicular to the axial direction of the guide rod 7, and the feeding tray 21 is arranged below the guide rod 7.

[0041] During installation, a guide frame 11 is slidably mounted on the guide rod 7. Both ends of the guide frame 11 are connected to the guide rod 7 via sliders 8 with locking functions. The guide frame 11 can move and lock on the guide rod 7. The guide frame 11 includes two mounting blocks and a support rod positioned between the two mounting blocks. A slider 8 with locking function is located below each mounting block. A guide plate 22 for guiding the wire is mounted on the guide frame 11; that is, the guide plate 22 is fixedly mounted on the support rod and remains stationary. The guide plates 22 are arranged above the guide rod 7.

[0042] Note that six sets of guide wheels 12 are evenly arranged around the circumference of the guide disk 22. These sets of guide wheels 12 are located on one end face of the guide disk 22. The orthodontic cable is wound around several of these sets of guide wheels 12, which prevent the orthodontic cable from having a small turning radius. Each set of guide wheels 12 includes two guide wheels 12 arranged inside and outside the guide disk 22, meaning two guide wheels 12 are arranged along the diameter of the guide disk 22. The distance between the two guide wheels 12 and the center of the guide disk 22 is different, and the two guide wheels 12 are used to clamp the orthodontic cable.

[0043] In this embodiment, the guide plate 22, straightening mechanism 3, wire feeding mechanism 4, and clamping mechanism 5 are arranged in a straight line on the same plane. During installation, the straightening mechanism 3 is also horizontally adjustable on the frame 1. Specifically, the straightening mechanism 3 includes a straightening plate 31 and a straightener 32 mounted on the straightening plate 31 for correcting the straightness of the wire. The straightening plate 31 is slidably mounted on the guide rod 7, and the straightening plate 31 is bent into an "L" shape. The straightening plate 31 is connected to the guide rod 7 via four sliders 8 with locking functions, allowing the straightening plate 31 to move and be fixed on the guide rod 7, simultaneously driving the straightener 32 to move and be fixed.

[0044] The wire feeding mechanism 4 and the clamping mechanism 5 are arranged opposite to each other. The wire feeding mechanism 4 includes a linear module 41 and a fast-rotating chuck 42 controlled by the linear module 41. The linear module 41 adopts an electric lead screw module. The fast-rotating chuck 42 is installed on the linear module 41 and can drive the fast-rotating chuck 42 to reciprocate linearly.

[0045] The structure and operating principle of the quick-rotating chuck 42 are existing technologies. The pneumatic gripper can clamp the wire and ensure sufficient friction between the pneumatic gripper and the orthogonal wire to avoid slippage during the wire feeding rotation. It is also equipped with a servo motor, which is belt driven between the servo motor and the pneumatic gripper to drive the pneumatic gripper to rotate. This will not be described in detail here.

[0046] The clamping mechanism 5 includes a second rapid-return chuck 51 and a wire feeding nozzle 52 controlled by the second rapid-return chuck 51. The second rapid-return chuck 51 has the same structure and operating principle as the first rapid-return chuck 42. The first rapid-return chuck 42 and the second rapid-return chuck 51 are arranged opposite each other, and the second rapid-return chuck 51 drives the wire feeding nozzle 52 to rotate together. The wire feeding nozzle 52 is a hollow stepped cylindrical structure.

[0047] After being drawn out from the feeding tray 21, the orthodontic wire passes sequentially through the guide plate 22, the straightening mechanism 3, the wire feeding mechanism 4, and the clamping mechanism 5, and is then bent into shape by the three-dimensional bending mechanism 6. The three-dimensional bending mechanism 6 is vertically arranged on the frame 1 and includes a lifting electric cylinder 61 and a rotary bending assembly 62 controlled by the lifting electric cylinder 61.

[0048] Specifically, the lifting cylinder 61 is arranged vertically, and a lifting plate 13 is provided on the lifting cylinder 61 to facilitate the up and down movement of the lifting plate 13. For some complex orthodontic wire bending processes, multiple precise bending operations may be required at different heights. The lifting cylinder 61 can be used to avoid the bending mold and the bending wire, and cooperate with the rotating bending assembly 62 to complete the cutting of the wire and other tasks.

[0049] A rotary bending assembly 62 is installed on the lifting plate 13, and the rotary bending assembly 62 and the lifting plate 13 move up and down together. The rotary bending assembly 62 includes a fixed inner shaft 14, a rotary motor 15, and a rotary outer cylinder 16 controlled by the rotary motor 15. The fixed inner shaft 14 is fixedly connected to the lifting plate 13, and a bending die 17 is provided at the top of the fixed inner shaft 14. The bending die 17 is a cylinder with a rectangular groove. The groove radially penetrates the bending die 17. The groove corresponds to the wire feeding nozzle 52, and the wire is guided into the groove by the wire feeding nozzle 52.

[0050] The rotating outer cylinder 16 is sleeved outside the fixed inner shaft 14 and rotatably connected to the lifting plate 13; the rotating motor 15 is a servo motor, which can drive the rotating outer cylinder 16 to rotate through gear transmission, and the rotating outer cylinder 16 can rotate relative to the fixed inner shaft 14. The gear transmission consists of meshing gears and gear rings.

[0051] A second bending die 18 is mounted at the top of the rotating outer cylinder 16. The second bending die 18 is a cylindrical block, and the rotating outer cylinder 16 drives the second bending die 18 to rotate. With the first bending die 17 fixed and the second bending die 18 rotating, the two dies work together to bend the wire into shape. The first bending die 17 and the second bending die 18 are designed according to the different shapes that the orthodontic wire needs to be bent into, and each die has a corresponding precise profile. The bending dies are made of high-strength, wear-resistant alloy material to ensure shape stability and accuracy during frequent bending operations.

[0052] The principle of this invention is as follows: Orthodontic wire is made of steel wire. The orthodontic steel wire is led out from the feeding tray 21 and first wound around several guide rollers 12 to ensure a large-arc bend in the wire between the feeding tray 21 and the guide rollers 22, preventing plastic deformation as the wire enters the straightener 32. After passing through the straightener 32, the first rapid-return chuck 42, and the second rapid-return chuck 51, it is guided by the wire feeding nozzle 52 to the three-dimensional bending mechanism 6, where the end of the orthodontic steel wire enters the groove of the bending die 17. The wire feeding mechanism 4, the clamping mechanism 5, and the three-dimensional bending mechanism 6 are controlled to operate in coordination according to bending requirements, thereby achieving the bending and shaping of the orthodontic steel wire.

[0053] During the bending process, the rapid-rotation chuck 42 clamps the steel wire, and the linear module 41 starts, driving the rapid-rotation chuck 42 to move forward at a set speed, pulling the steel wire out of the loading tray 21. At the same time, the rapid-rotation chuck 42 rotates, causing the orthodontic steel wire to move forward continuously during the rotation, maintaining a stable forward feed speed. Furthermore, the wire feeding speed of the linear module 41 matches the rotation speed of the rapid-rotation chuck, enabling the processing of various complex shapes of orthodontic steel wires.

[0054] It is important to note that the wire feeding mechanism 4 and the clamping mechanism 5 are two separate, complementary mechanisms. That is, when the wire feeding mechanism 4 moves forward to feed the wire, the clamping mechanism 5 releases, ensuring the orthodontic wire passes smoothly through it. When the wire feeding mechanism 4 retracts, the clamping mechanism 5 clamps the wire, ensuring it is fixed in place. The wire feeding operation is completed through the cooperation of these two different mechanisms. The three-dimensional bending mechanism 6, according to the preset parameters, sequentially controls the movement trajectory and action sequence of the bending die, gradually processing the wire into the required shape.

[0055] Example 2:

[0056] This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that an image acquisition device 19 for capturing the bending contour of the orthogonal wire is also installed on the frame 1. The image acquisition device 19 includes an industrial camera. The image acquisition device 19 monitors the processing in real time, and performs real-time detection and analysis on the position, shape, and size of the steel wire. Once a product quality problem is detected, such as bending angle deviation or steel wire surface defects, an alarm is immediately issued and the equipment parameters are automatically adjusted or production is stopped to correct the problem in a timely manner and ensure that the product quality always meets high standards.

[0057] During the bending process of the orthodontic wire, the image acquisition device 19 starts operating according to the settings. First, the image acquisition device 19 captures real-time images of the orthodontic wire, showing a clear outline and features of the wire in the image. The industrial camera converts the captured optical image into a digital image signal and quickly transmits the data to the image transmission and processing unit via the image transmission interface. In the image transmission and processing unit, the acquired image is processed and analyzed. The captured image model is compared and analyzed with a preset standard model to determine whether the current state of the wire meets the bending requirements.

[0058] If deviations in the position, shape, or size of the steel wire are detected, precise adjustments are made by controlling the wire feeding mechanism 4 and the three-dimensional bending mechanism 6 to ensure that the steel wire is bent according to predetermined requirements. Simultaneously, the image acquisition device 19 continuously monitors the bending process of the steel wire, providing real-time feedback on the wire's status to ensure the accuracy and stability of the entire bending process.

[0059] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A 3D bending machine for bending orthodontic wires, characterized in that, It includes a frame (1) and a feeding mechanism (2), a straightening mechanism (3), a wire feeding mechanism (4), a clamping mechanism (5) and a three-dimensional bending mechanism (6) arranged on the frame (1) in sequence along the wire bending sequence. The feeding mechanism (2) includes a guide plate (22) and a feeding plate (21) that are horizontally adjustable on the upper and lower sides of the frame (1). Orthogonal wire is wound on the feeding plate (21). The guide plate (22), straightening mechanism (3), wire feeding mechanism (4) and clamping mechanism (5) are arranged in a straight line on the same plane. After the orthogonal wire is led out from the feeding plate (21), it passes through the guide plate (22), straightening mechanism (3), wire feeding mechanism (4) and clamping mechanism (5) in sequence, and is bent into shape by the three-dimensional bending mechanism (6). The straightening mechanism (3) is horizontally adjustable on the frame (1), the wire feeding mechanism (4) and the clamping mechanism (5) are arranged opposite to each other, and the three-dimensional bending mechanism (6) is vertically arranged on the frame (1). The three-dimensional bending mechanism (6) includes a lifting electric cylinder (61) and a rotating bending assembly (62) controlled by the lifting electric cylinder (61).

2. The wire 3D bending machine according to claim 1, characterized in that, The frame (1) is provided with horizontally arranged light rods (7), the number of light rods (7) is two arranged at intervals, and each light rod (7) is provided with multiple sliders (8) with locking function.

3. The wire 3D bending machine according to claim 2, characterized in that, A feeding plate (9) is slidably arranged on the light rod (7). The feeding plate (9) is connected to the light rod (7) through a slider (8) with locking function. A feeding mandrel (10) is horizontally arranged below the feeding plate (9). The feeding disc (21) is an I-shaped wheel structure. The feeding disc (21) is mounted on the feeding mandrel (10). The axial direction of the feeding disc (21) is perpendicular to the axial direction of the guide rod (7). The feeding disc (21) is arranged below the guide rod (7).

4. A 3D wire bending machine according to claim 2, characterized in that, A guide frame (11) is slidably mounted on the optical rod (7). The guide frame (11) is connected to the optical rod (7) via a slider (8) with locking function. The guide frame (11) is provided with a guide disk (22) for guiding the wire. The guide disk (22) is arranged above the optical rod (7). The guide disc (22) is evenly provided with multiple guide wheel (12) groups in the circumference. The orthodontic wire is wound around the guide wheel (12) groups. Each guide wheel (12) group includes two guide wheels (12) arranged inside and outside, and the two guide wheels (12) clamp the orthodontic wire.

5. A 3D wire bending machine according to claim 2, characterized in that, The straightening mechanism (3) includes a straightening plate (31) and a straightener (32) set on the straightening plate (31) for straightening the straightness of the wire. The straightening plate (31) is slidably set on the optical rod (7). The straightening plate (31) is connected to the optical rod (7) through a slider (8) with locking function.

6. A 3D wire bending machine according to claim 1, characterized in that, The wire feeding mechanism (4) includes a linear module (41) and a fast-rotating chuck (42) controlled by the linear module (41). The clamping mechanism (5) includes a fast-rotating chuck (51) and a wire feeding nozzle (52) controlled by the fast-rotating chuck (51). The first rapid rotation chuck (42) and the second rapid rotation chuck (51) are arranged opposite to each other. After the orthodontic wire passes through the first rapid rotation chuck (42) and the second rapid rotation chuck (51) in sequence, it is guided by the wire feed nozzle (52) to the three-dimensional bending mechanism (6).

7. A 3D wire bending machine according to claim 1, characterized in that, The lifting cylinder (61) is arranged vertically, and a lifting plate (13) is provided on the lifting cylinder (61). The rotating bending assembly (62) is provided on the lifting plate (13). The rotating bending assembly (62) includes a fixed inner shaft (14), a rotary motor (15), and a rotating outer cylinder (16) controlled by the rotary motor (15). The fixed inner shaft (14) is fixedly connected to the lifting plate (13). A bending mold (17) is provided at the top of the fixed inner shaft (14). The rotating outer cylinder (16) is sleeved on the outside of the fixed inner shaft (14) and is rotatably connected to the lifting plate (13). A bending mold (18) is provided at the top of the rotating outer cylinder (16). The bending mold (17) and the bending mold (18) work together to bend the wire into shape.

8. A 3D wire bending machine according to claim 1, characterized in that, The frame (1) is also equipped with an image acquisition device (19) for capturing the bending contour of orthodontic wires.

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