Bending device for rigid wires

Abstract

The application relates to the technical field of electric appliance assembly, and particularly discloses a hard wire bending device, which comprises a forming die, a rocker arm and a first driving piece. The forming die is provided with a forming groove for hard wire forming, the forming groove comprises a wire mounting area and a wire forming area communicated with the wire mounting area, the wire mounting area is used for positioning the positioning section of the hard wire; the rocker arm is rotationally connected to the forming die, and the rocker arm is arranged in correspondence with the forming section of the hard wire; the first driving piece is used for driving the rocker arm to rotate so that the forming section is bent relative to the positioning section and enters the wire forming area, wherein the rotation center of the rocker arm and the bending center of the hard wire are arranged on the same straight line. The hard wire bending device can effectively protect the insulating layer on the surface of the hard wire without friction between the hard wire and the hard wire bending device during the process of bending the hard wire.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliance assembly, in particular to a hard wire bending device. BACKGROUND

[0002] In the process of producing and processing circuit breakers, the hard wire of the circuit breaker's conductive system needs to be bent into a certain shape before being connected and installed with other elements of the circuit breaker.

[0003] In order to strengthen the insulation performance of the hard wire, some circuit breaker products will wrap a heat shrink tube on the periphery of the hard wire, and then bend the hard wire with the assembled heat shrink tube. However, the existing bending device will produce sliding friction with the heat shrink tube during the bending process, and the material of the heat shrink tube is relatively soft, so the sliding friction between the bending device and the heat shrink tube can easily damage the heat shrink tube, resulting in a decrease in the insulation performance of the hard wire.

[0004] Therefore, it is urgent to provide a hard wire bending device to solve the above problems. SUMMARY

[0005] The present application provides a hard wire bending device which can effectively protect the insulation layer on the surface of the hard wire without producing friction with the hard wire during the bending process.

[0006] To achieve the above purpose, the present application adopts the following technical scheme:

[0007] A hard wire bending device, comprising:

[0008] A forming die, wherein a forming groove for hard wire forming is arranged on the forming die, the forming groove comprises a wire installation area and a wire forming area in communication with the wire installation area, and the wire installation area is used for positioning the positioning section of the hard wire;

[0009] A rocker arm, wherein the rocker arm is rotationally connected to the forming die, and the rocker arm is correspondingly arranged with the forming section of the hard wire;

[0010] A first driving member, wherein the first driving member is used to drive the rocker arm to rotate so as to bend the forming section relative to the positioning section and enter the wire forming area, and the rotation center of the rocker arm and the bending center of the hard wire are located on the same straight line.

[0011] Optionally, one end of the forming die is concavely provided with a mounting groove, the rocker arm is provided with a connecting block, the connecting block is arranged in the mounting groove, and the connecting block is rotationally connected with the mounting groove through a rotating shaft, one end of the rotating shaft penetrates the groove wall of the mounting groove and is located at the connection between the wire installation area and the wire forming area.

[0012] Optionally, two sides of the wire mounting area are provided with the wire forming area, and each wire forming area is provided with the rocker arm correspondingly.

[0013] Optionally, the forming groove is in a shape of "U", and an included angle between the two wire forming areas is 1-2 degrees.

[0014] Optionally, the rocker arm is provided with a scale line, and the scale line is used for identifying the position of the end of the forming section.

[0015] Optionally, the first driving member comprises a guide part and a driving part, the guide part is slidably connected to the forming die in a first direction, and in the process that the guide part moves towards the forming die in the first direction, the driving part is in contact with the rocker arm and drives the rocker arm to rotate, and the first direction is perpendicular to the extension direction of the wire mounting area.

[0016] Optionally, the driving part comprises an angular protrusion for driving the rocker arm to rotate, the angular protrusion comprises a first fitting surface, a second fitting surface and an arc surface, the first fitting surface and the second fitting surface are connected through the arc surface, and in the process that the angular protrusion drives the rocker arm to rotate, the first fitting surface, the arc surface and the second fitting surface are fitted to the rocker arm in sequence.

[0017] Optionally, the rocker arm is provided with a guide column, and the guide column is slidably connected to the guide part, and in the process that the guide part moves away from the forming die in the first direction, the guide part can drive the rocker arm to reset through the guide column.

[0018] Optionally, the bending device of the hard wire further comprises a second driving member, the second driving member is drivingly connected with the first driving member, and the second driving member is used for driving the first driving member to move in the first direction.

[0019] Optionally, the forming die is provided with a sliding groove extending in the first direction, and the guide part is slidably connected to the sliding groove.

[0020] Optionally, the top of the first driving member is provided with a cover plate, and the cover plate can position the hard wire in the wire forming area in the process of bending the hard wire.

[0021] The present application has the following beneficial effects:

[0022] The application provides a hard wire bending device, which comprises a forming die, a rocker arm and a first driving member. When bending the hard wire, first, the positioning section of the hard wire is arranged in the wire mounting area of the forming die, then the rocker arm is driven to rotate by the first driving member, the rocker arm pushes the forming section of the hard wire corresponding to the rocker arm to bend relative to the positioning section and enters the wire forming area of the forming die, and the bending of the hard wire is completed. In the bending process of the hard wire, by arranging the rotation center of the rocker arm and the bending center of the hard wire on the same straight line, the forming section of the hard wire can rotate synchronously with the rocker arm, that is, there is no sliding friction between the forming section of the hard wire and the rocker arm in the bending process, so that the insulating layer on the surface of the hard wire is effectively protected. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure diagram of the hard wire bending device provided by the embodiment of the application Figure 1 (hard wire is not shown);

[0024] Figure 2 The assembly of the forming die, the rocker arm and the first driving member provided by the embodiment of the application Figure 1 ;

[0025] Figure 3 The assembly of the forming die, the rocker arm and the first driving member provided by the embodiment of the application Figure 2 (cover plate is not shown);

[0026] Figure 4 The exploded view of the forming die, the rocker arm and the first driving member provided by the embodiment of the application;

[0027] Figure 5 The structure diagram of the forming die provided by the embodiment of the application;

[0028] Figure 6 The top view of the forming die provided by the embodiment of the application;

[0029] Figure 7 The exploded view of the forming die and the rocker arm provided by the embodiment of the application;

[0030] Figure 8 The assembly diagram of the forming die and the rocker arm provided by the embodiment of the application;

[0031] Figure 9 The structure diagram of the first driving member provided by the embodiment of the application;

[0032] Figure 10 The structure diagram of the hard wire bending device provided by the embodiment of the application Figure 2 (hard wire is not bent);

[0033] Figure 11 The structure diagram of the hard wire bending device provided by the embodiment of the application Figure 3(hard wire is bent).

[0034] In the drawings:

[0035] 100, forming die; 110, forming groove; 111, wire mounting area; 112, wire forming area; 120, mounting groove; 121, first connecting hole; 122, second connecting hole; 130, sliding groove; 200, rocker arm; 210, connecting block; 211, third connecting hole; 220, scale line; 230, guide column; 240, fourth connecting hole; 300, first driving member; 310, angular protrusion; 311, first abutting surface; 312, second abutting surface; 313, arc surface; 320, guide portion; 321, guide groove; 330, cover plate; 400, hard wire; 410, positioning section; 420, forming section; 500, rotating shaft; 600, second driving member; 700, electric control box; 710, base plate; 720, start button; 730, emergency stop button. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "over" and "on" of the first feature to the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] This embodiment provides a bending device for a hard wire that prevents friction between the device and the hard wire 400 during the bending process, effectively protecting the insulation layer on the surface of the hard wire 400. In one possible implementation, the above-mentioned bending device for a hard wire can be applied to the hard wire forming of circuit breaker products such as NL1-100.

[0041] Specifically, such as Figures 1-5 As shown, the hard wire bending device includes a forming mold 100, a rocker arm 200, and a first driving member 300. The forming mold 100 has a forming groove 110 for forming the hard wire 400; that is, the shape of the forming groove 110 is the same as the shape the hard wire 400 needs to be bent into. In this embodiment, the forming groove 110 is U-shaped. In other embodiments, the shape of the forming groove 110 can also be other, such as L-shaped, etc., depending on actual needs; this application does not impose specific limitations. The forming groove 110 includes a conductor mounting area 111 and a conductor forming area 112 communicating with the conductor mounting area. The hard wire 400 includes a positioning section 410 and a forming section 420. The positioning section 410 is positioned and installed in the conductor mounting area 111, and the forming section 420 enters the conductor forming area 112 after bending. The rocker arm 200 is rotatably connected to the forming mold 100, and the rocker arm 200 is correspondingly arranged with the forming section 420. Specifically, the first driving member 300 can drive the rocker arm 200 to rotate. The rocker arm 200 can bend the forming section 420 relative to the positioning section 410 and enter the wire forming area 112 by rotating. The rotation center of the rocker arm 200 and the bending center of the hard wire 400 are on the same straight line.

[0042] See also Figure 2 and Figure 3The hard wire bending device provided in this embodiment first inserts the positioning segment 410 of the hard wire 400 into the conductor mounting area 111 of the forming mold 100 when bending the hard wire 400. Then, the rocker arm 200 is driven to rotate by the first driving member 300. The rotation of the rocker arm 200 pushes the forming segment 420 of the hard wire 400, which is correspondingly arranged with the rocker arm 200, to bend relative to the positioning segment 410 and enter the conductor forming area 112 of the forming mold 100, thus completing the bending of the hard wire 400. During the bending process of the hard wire 400, since the rotation center of the rocker arm 200 and the bending center of the hard wire 400 are on the same straight line, the forming segment 420 of the hard wire 400 rotates synchronously with the rocker arm 200. That is, there is no sliding friction between the forming segment 420 of the hard wire 400 and the rocker arm 200 during the bending process, thereby effectively protecting the insulation layer on the surface of the hard wire 400. In this embodiment, the hard wire 400 is covered with a heat shrink tubing. When the hard wire 400 covered with heat shrink tubing is bent by the aforementioned hard wire bending device, there is no relative sliding between the heat shrink tubing and the rocker arm 200, which can effectively protect the heat shrink tubing and thus improve the insulation performance of the hard wire 400.

[0043] Optionally, see [link to relevant documentation] Figures 2-4 In this embodiment, wire forming areas 112 are provided on both sides of the wire mounting area 111, that is, there are two wire forming areas 112. Since the rocker arms 200 are correspondingly arranged with respect to the wire forming areas 112, there are correspondingly two rocker arms 200. The two rocker arms 200 are respectively arranged with respect to the two wire forming areas 112. Specifically, each rocker arm 200 rotates to bend the forming section 420 relative to the positioning section 410 and enter the corresponding wire forming area 112. By providing two rocker arms 200, the hard wire 400 can be bent into a U-shape.

[0044] Furthermore, such as Figure 6 As shown, in this embodiment, the included angle α between the two conductor forming areas 112 is 1°-2°, which can be 1°, 1.5°, or 2°, for example. Since the forming section 420 will have a certain springback relative to the positioning section 410 after the hard wire 400 is formed (the springback includes the springback of the hard wire 400 and the springback of the heat shrink tubing), setting the included angle between the two conductor forming areas 112 to 1°-2° can overcome the springback of the hard wire 400, making the included angle between the forming section 420 and the positioning section 410 of the formed hard wire 400 closer to 90°.

[0045] Further, see also Figure 2 and Figure 3The rocker arm 200 is equipped with scale lines 220, which are used to mark the position of the end of the forming section 420. In this embodiment, since there are two rocker arms 200, after the positioning section 410 of the hard wire 400 is installed into the wire mounting area 111, the hard wire 400 can be moved left or right slightly so that the ends of the forming sections 420 on both sides of the positioning section 410 correspond to the corresponding scale lines 220. If no matter how it is adjusted, the ends of the forming sections 420 at both ends of the positioning section 410 cannot correspond to the corresponding scale lines 220, it indicates that the hard wire 400 is a defective product and needs to be replaced with a qualified hard wire 400 before bending. Therefore, by setting the scale lines 220, the length of the forming section 420 can be precisely controlled, and defective hard wires 400 can be identified, thereby improving the pass rate of the formed hard wire 400.

[0046] Optionally, in this embodiment, the scale line 220 is disposed on the top end face of the rocker arm 200 and located at the end. Disposing of the scale line 220 on the top end face of the rocker arm 200 facilitates observation by the operator.

[0047] Optionally, in this embodiment, the scale line 220 is a plurality of grooves formed on the rocker arm 200, and the plurality of grooves are equally spaced. In other embodiments, the scale line 220 may also be drawn on the rocker arm 200, depending on the actual setting, and this application does not make specific limitations.

[0048] Further, see also Figure 2 and Figure 3 The top of the first driving member 300 is provided with a cover plate 330, which can position the hard wire 400 within the conductor forming area 112 during the bending process. By providing the cover plate 330, the hard wire 400 can be prevented from warping upwards during the bending process.

[0049] Optionally, in this embodiment, the cover plate 330 is detachably connected to the first driving member 300 by bolts. In other embodiments, the cover plate 330 may also be connected to the first driving member 300 by other means, such as welding, etc., as needed, and this application does not impose specific limitations.

[0050] Furthermore, such as Figure 5 , Figure 7 and Figure 8As shown, in this embodiment, one end of the molding mold 100 is recessed with an installation groove 120, and the rocker arm 200 is provided with a connecting block 210. The connecting block 210 is installed in the installation groove 120 and is rotatably connected to the installation groove 120 through a rotating shaft 500. That is, the rotating shaft 210 is the rotation center of the rocker arm 200, and the connection between the wire installation area 111 and the wire forming area 112 is the bending center of the hard wire 400. One end of the rotating shaft 500 is provided to pass through the groove wall of the installation groove 120 and is placed at the connection between the wire installation area 111 and the wire forming area 112, so that the rotation center of the rocker arm 200 and the bending center of the hard wire 400 are on the same straight line.

[0051] Specifically, in this embodiment, the opposite side walls of the mounting groove 120 are respectively provided with a first connecting hole 121 and a second connecting hole 122, and the connecting block 210 is provided with a third connecting hole 211. After the connecting block 210 is installed in the mounting groove 120, the first connecting hole 121, the third connecting hole 211 and the second connecting hole 122 correspond to each other. The rotating shaft 500 is sequentially inserted through the first connecting hole 121, the third connecting hole 211 and the second connecting hole 122.

[0052] The rocker arm 200 and the molding die 100 are rotatably connected by the rotating shaft 500. The structure is simple, easy to install and disassemble, and the rocker arm 200 has good rotational stability.

[0053] Furthermore, such as Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, the first driving member 300 includes a guide portion 320 and a driving portion. The guide portion 320 guides the movement of the first driving member 300, and the driving portion drives the rocker arm 200 to rotate. Specifically, in this embodiment, the guide portion 320 is slidably connected to the molding mold 100 along a first direction, which is the extension direction perpendicular to the wire mounting area 111. During the process of the guide portion 320 moving towards the molding mold 100 along the first direction, the driving portion contacts the rocker arm 200 and drives the rocker arm 200 to rotate. By providing the guide portion 320, the reliability of the first driving member 300 moving along the first direction can be improved, thereby improving the reliability of the driving portion of the first driving member 300 driving the rocker arm 200 to rotate.

[0054] Further, see also Figure 2 , Figure 3 , Figure 4 and Figure 9As shown, the first driving member 300 includes an angular protrusion 310, which is used to drive the rocker arm 200 to rotate. Since there are two rocker arms 200 in this embodiment, there are correspondingly two angular protrusions 310. Specifically, in this embodiment, the angular protrusion 310 includes a first contact surface 311, a second contact surface 312, and an arc surface 313. The first contact surface 311 and the second contact surface 312 are connected by the arc surface 313, that is, one end of the arc surface 313 is connected to the first contact surface 311, and the other end is connected to the second contact surface 312. When the first driving member 300 is in the initial position (the position where bending begins), the first contact surface 311 is in contact with the rocker arm 200; when the first driving member 300 is in the termination position (the position where bending ends), the second contact surface 312 is in contact with the rocker arm 200. During the rotation of the rocker arm 200 driven by the angular protrusion 310, the first contact surface 311, the arc surface 313, and the second contact surface 312 sequentially contact the rocker arm 200. The transition between the first contact surface 311 and the second contact surface 312 is achieved through the arc surface 313, which can avoid hard contact between the angular protrusion 310 and the rocker arm 200, thus helping to protect the rocker arm 200.

[0055] Furthermore, such as Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9 As shown, the rocker arm 200 is provided with a guide post 230, which is slidably connected to the guide part 320. During the process of the guide part 320 moving away from the forming mold 100 in the first direction, the guide part 320 can drive the guide post 230 to move away from the forming mold 100 in the first direction. The movement of the guide post 230 can drive the rocker arm 200 connected to the guide post 230 to move, thereby restoring the rocker arm 200 to the state at the beginning of the bending, so as to facilitate the next bending.

[0056] Specifically, in this embodiment, the guide portion 320 is provided with a guide groove 321, which extends along a first direction. A guide post 230 is slidably connected to the guide groove 321 and can abut against two groove walls along the length of the guide groove 321. During the movement of the guide portion 320 toward the molding mold 100 along the first direction, initially, the guide post 230 abuts against one groove wall of the guide groove 321. As the guide portion 320 moves, the guide post 230 slides relative to the guide groove 321 until it abuts against the other groove wall, at which point the bending process of the hard wire 400 is completed. By setting a sliding connection between the guide groove 321 and the guide post 230, the movement of the rocker arm 200 can be guided, improving the stability of the rocker arm 200's rotation, and the travel distance of the guide portion 320 can be limited, thus improving the reliability of the hard wire bending device in bending the hard wire 400.

[0057] Furthermore, after the hard wire 400 is bent and formed, as the guide part 320 moves away from the forming mold 100 along the first direction, the guide post 230 abuts against another groove wall of the guide groove 321, which enables the guide part 320 to drive the guide post 230 to move, thereby driving the rocker arm 200 back to the initial position, in preparation for the next bending of the hard wire 400.

[0058] Optionally, since two rocker arms 200 are provided in this embodiment, two guide portions 320 are also provided accordingly.

[0059] Optionally, in this embodiment, the guide post 230 is a pull pin, and the rocker arm 200 is provided with a fourth connecting hole 240. The pull pin passes through the fourth connecting hole 240, and the head of the pull pin abuts against the rocker arm 200. The tail of the pull pin is slidably connected to the guide groove 321. The structure is simple and easy to assemble. Of course, in other embodiments, the structure of the guide post 230 can also be other. For example, the guide post 230 is a rod-shaped structure welded to the rocker arm 200. It can be set according to actual needs, and this application does not make specific limitations.

[0060] Optionally, such as Figures 2-4 As shown, the forming mold 100 is provided with a groove 130 extending along a first direction, and the guide portion 320 is slidably connected to the groove 130. By providing a sliding connection between the groove 130 and the guide portion 320, the forming mold 100 can guide the movement of the first driving member 300, which helps to improve the stability of the movement of the first driving member 300, and thus improves the reliability of the above-mentioned hard wire bending device in bending the hard wire 400.

[0061] Furthermore, such as Figure 1 , Figure 10 and Figure 11 As shown, the aforementioned hard wire bending device further includes a second driving member 600, which is drivenly connected to the first driving member 300. The second driving member 600 is used to drive the first driving member 300 to move along a first direction. By setting the second driving member 600 to drive the first driving member 300 to move, automatic bending processing of the hard wire 400 is achieved, which has higher processing efficiency compared with manually pushing the first driving member 300.

[0062] Optionally, the second driving component 600 can be a mechanism capable of outputting linear motion, such as a cylinder, hydraulic cylinder, or linear motor; this application does not impose any specific limitations.

[0063] Further, see also Figure 1 , Figure 10 and Figure 11The aforementioned hard wire bending device also includes an electrical control box 700. A base plate 710 is located on the top of the electrical control box 700. The forming mold 100, rocker arm 200, first drive component 300, and second drive component 600 are all mounted on the base plate 710. Start buttons 720 are located at both ends of the electrical control box 700. The start buttons 720 are signal-connected to the second drive component 600. Pressing both start buttons 720 simultaneously activates the second drive component 600. Controlling the second drive component 600 via the start buttons 720 is simple and easy for operators to use.

[0064] Optionally, the electrical control box 700 is also equipped with an emergency stop button 730, which is connected to the second drive unit 600. Pressing the emergency stop button 730 can bring the second drive unit 600 to an emergency stop in response to emergencies.

[0065] Optionally, the electrical control box 700 includes a control mechanism. This control mechanism is signal-connected to the start button 720, the emergency stop button 730, and the second drive unit 600. The control mechanism can control the start and stop of the second drive unit 600 based on the signals transmitted by the start button 720 and the emergency stop button 730. The control mechanism can be a centralized or distributed controller. For example, the controller can be a single microcontroller or composed of multiple distributed microcontrollers. The microcontroller can run a control program to control the second drive unit 600 to perform its functions.

[0066] To facilitate understanding, the working process of the above-mentioned hard wire bending device will be briefly described below:

[0067] like Figure 10 and Figure 11 As shown, take a straight rigid wire 400 with heat shrink tubing around its outer edge, manually insert it into the wire mounting area 111 on the molding mold 100, and adjust the position of both ends of the rigid wire 400 with reference to the scale line 220 on the rocker arm 200.

[0068] Then, press both start buttons 720 simultaneously to start the bending program. At this time, the second drive component 600 drives the first drive component 300 to slide forward. When the end position is reached, the hard wire 400 is bent.

[0069] Afterwards, the output end of the second drive unit 600 retracts, driving the rocker arm 200 back to its initial position, removing the formed hard wire 400, and completing one forming process of the hard wire 400.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A bending device for a hard wire, characterized by comprising: The hard wire (400) comprises a positioning section (410) and a forming section (420), and a bending device of the hard wire comprises: A forming die (100) is provided with a forming groove (110) for forming the hard wire (400), the forming groove (110) comprises a wire mounting area (111) and a wire forming area (112) in communication with the wire mounting area (111), the wire mounting area (111) is used for positioning the positioning section (410), the connecting position of the wire mounting area (111) and the wire forming area (112) is the bending center of the hard wire (400), and one end of the forming die (100) is concavely provided with a mounting groove (120); A rocker arm (200) is provided with a connecting block (210), the connecting block (210) is arranged in the mounting groove (120), and the connecting block (210) is rotationally connected with the mounting groove (120) through a rotating shaft (500), one end of the rotating shaft (500) penetrates the groove wall of the mounting groove (120) and is arranged at the connecting position of the wire mounting area (111) and the wire forming area (112), the rocker arm (200) is correspondingly arranged with the forming section (420), and the rocker arm (200) is provided with a scale line (220) for identifying the position of the end of the forming section (420); A first driving member (300) is used for driving the rocker arm (200) to rotate, so that the forming section (420) is bent relative to the positioning section (410) and enters the wire forming area (112), wherein the rotation center of the rocker arm (200) and the bending center of the hard wire (400) are arranged on the same straight line.

2. The device for bending a hard wire according to claim 1, wherein The wire mounting area (111) is provided with the wire forming area (112) on both sides, each wire forming area (112) is correspondingly provided with the rocker arm (200), and the first driving member (300) is used for driving two rocker arms (200) to rotate.

3. The device for bending a hard wire according to claim 2, wherein The forming groove (110) is in a "U" shape, and the included angle between the two wire forming areas (112) is 1°-2°.

4. A device for bending a hard wire according to any one of claims 1-3, characterized in that The first driving member (300) comprises a guide part (320) and a driving part, the guide part (320) is slidably connected to the forming die (100) in a first direction, during the movement of the guide part (320) in the first direction towards the forming die (100), the driving part is in contact with the rocker arm (200) and drives the rocker arm (200) to rotate, and the first direction is perpendicular to the extension direction of the wire mounting area (111).

5. The device for bending a hard wire according to claim 4, wherein The driving part comprises an angular protrusion (310) for driving the rocker arm (200) to rotate, the angular protrusion (310) comprises a first fitting surface (311), a second fitting surface (312) and an arc surface (313), the first fitting surface (311) and the second fitting surface (312) are connected through the arc surface (313), and the first fitting surface (311), the arc surface (313) and the second fitting surface (312) are sequentially fitted to the rocker arm (200) in the process that the angular protrusion (310) drives the rocker arm (200) to rotate.

6. The device for bending a hard wire according to claim 4, wherein The rocker arm (200) is provided with a guide column (230) which is slidingly connected to the guide part (320), and the guide part (320) can drive the rocker arm (200) to reset through the guide column (230) in the process that the guide part (320) moves away from the forming die (100) along the first direction.

7. The device for bending a hard wire according to claim 4, wherein The bending device of the hard wire further comprises a second driving member (600), the second driving member (600) is drivingly connected with the first driving member (300), and the second driving member (600) is used for driving the first driving member (300) to move along the first direction.

8. The device for bending a hard wire according to any one of claims 1 to 3, characterized in that, The top of the first driving member (300) is provided with a cover plate (330), and the cover plate (330) can position the hard wire (400) in the wire forming area (112) in the process of bending the hard wire (400).

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