Bending device

Abstract

The present disclosure relates to the field of antenna technologies and provides a bending device, which includes a first bending member; the first bending member includes a holding portion, a first pressing plate, and a second pressing plate. One end of the first pressing plate is rotatably connected to the holding portion, and the other end of the first pressing plate is rotatably connected to the second pressing plate; the clamping and rotation of the first pressing plate and the second pressing plate are used to bend the cores of multiple cables simultaneously. The first pressing plate and the second pressing plate in the bending device can clamp and rotate to bend the cores of multiple cables simultaneously, ensuring the consistency of the core shapes, so that the cores can be accurately placed in the specified welding grooves after the cables are assembled. At this time, the cores are pre-bent to prevent their shapes when placed in the radiation unit.

Description

[0001] This disclosure is a divisional application of a patent application with an application date of July 29, 2021, an application number of 202110862281.1, and an invention title of "Briquetting Assembly, Welding Tooling, Bending Device, and Welding Method". Technical Field

[0002] This disclosure relates to the field of antenna technology, and particularly to a bending device. Background Art

[0003] In the communication industry, with the development of the base station antenna field, small-sized, multi-band, and multi-mode base station antennas have increasingly become the mainstream antennas applied in the communication industry. To improve space utilization, currently, multi-band and multi-mode antennas generally adopt a coaxial nested structure, that is, high-frequency radiation units are embedded in low-frequency radiation units. However, due to the complex structure of the radiation units, there are many small parts, and the operable space is small. Not only is it difficult for employees to operate, but also problems such as poor solder joints are likely to occur. Summary of the Invention

[0004] To solve the above technical problems or at least partially solve the above technical problems, this disclosure provides a bending device.

[0005] This disclosure provides a bending device, including a first bending member. The first bending member includes a holding portion, a first pressing plate, and a second pressing plate. One end of the first pressing plate is rotatably connected to the holding portion, and the other end of the first pressing plate is rotatably connected to the second pressing plate;

[0006] The clamping and rotation of the first pressing plate and the second pressing plate are used to bend the cores of multiple cables simultaneously.

[0007] Optionally, the first pressing plate is rotatably connected to the holding portion through a first rotating shaft. The first pressing plate includes a cylinder sleeved outside the first rotating shaft, and the cylinder bends a part of the cores into a first bending portion;

[0008] The first pressing plate is connected to the second pressing plate through a second rotating shaft. When the second pressing plate rotates close to the first pressing plate, the main body portion of the first pressing plate and the second pressing plate bend another part of the cores into a second bending portion;

[0009] The shape of the cores formed by the first bending portion and the second bending portion is the same as the shape of the cores required in the radiation unit.

[0010] Optionally, a convex platform for aligning the ends of the cores is provided on the main body portion of the first pressing plate, and a groove cooperating with the convex platform is provided on the second pressing plate.

[0011] Optionally, the bending device further includes a second bending member, a bending groove is formed on the second bending member, the cable further includes a wire body, and the bending groove is used for bending the wire body;

[0012] The shape of the bending groove is the same as the shape of the wire body required in the radiation unit.

[0013] The technical solution provided by the embodiment of the present disclosure has the following advantages compared with the prior art:

[0014] The first pressing plate and the second pressing plate in the bending device provided by the embodiment of the present disclosure can clamp and rotate the wire cores for simultaneously bending multiple cables, ensuring the consistency of the wire core shapes, so that the wire cores can be accurately placed in the specified welding grooves after the cables are assembled. At this time, the wire cores are pre-bent to prevent their shapes in the radiation unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic structural diagram of the pressing block assembly according to the embodiment of the present disclosure;

[0018] Figure 2 Schematic structural diagram of the welding tooling according to the embodiment of the present disclosure;

[0019] Figure 3 Cross-sectional view of the pressing block assembly installed on the support member according to the embodiment of the present disclosure;

[0020] Figure 4 Schematic structural diagram of the welding tooling with the support member removed according to the embodiment of the present disclosure;

[0021] Figure 5 Schematic structural diagram of the welding tooling installing the radiation unit according to the embodiment of the present disclosure;

[0022] Figure 6 Bottom view of the welding tooling installing the radiation unit according to the embodiment of the present disclosure;

[0023] Figure 7 Based on the embodiment of the present disclosure Figure 6 Partial enlarged view of part A;

[0024] Figure 8 This is a partial enlarged view of part B based on Figure 6 the present disclosure;

[0025] Figure 9 This is a schematic structural diagram of a cable according to an embodiment of the present disclosure;

[0026] Figure 10 This is a schematic structural diagram of a first bending device according to an embodiment of the present disclosure;

[0027] Figure 11 This is a schematic structural diagram of a second bending device according to an embodiment of the present disclosure;

[0028] Figure 12 This is a process flow chart of a welding method according to an embodiment of the present disclosure.

[0029] Among them,

[0030] 100, welding tooling; 1, pressing block assembly; 11, pressing component; 111, pressing part; 112, sleeved part; 12, connecting component; 13, elastic component; 14, limiting part; 15, first connecting piece; 2, supporting component; 21, second connecting piece; 3, hollow bottom plate; 4, supporting plate; 5, supporting column; 6, radiation unit; 61, base; 611, hole position; 62, balun arm; 621, oscillator slot; 622, dielectric slot; 7, feeding piece; 8, first bending component; 81, holding part; 82, first pressing plate; 821, column body; 822, boss; 83, second pressing plate; 9, second bending component; 91, bending slot; 200, cable; 201, wire core; 202, wire body; 203, dielectric part. Detailed implementation manners

[0031] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0033] In the prior art, the radiation unit has a complex structure, there are many small materials, and the operable space is relatively small. Moreover, the cable of the radiation unit is an embedded cable with a three-dimensional wiring layout, making it difficult for employees to operate. The length of the wire core at the cable stripping point is also relatively long, and there are specific shape requirements for the wire core during installation, making it difficult for employees to operate and difficult to ensure consistency. The bending arc of the wire body of the radiation unit cable is relatively large, and the wire body is prone to deformation during reflow soldering, resulting in poor solder joints, affecting the solder joint quality, leading to a low product qualification rate and insufficient production capacity.

[0034] Based on this, the present embodiment provides a pressing block assembly, a welding tooling, a bending device and a welding method to solve the above technical problems.

[0035] The pressing block assembly, the welding tooling, the bending device and the welding method will be described in detail through specific embodiments as follows:

[0036] As Figure 1 shown, the present disclosure embodiment provides a pressing block assembly 1 including a plurality of pressing components 11, a connecting component 12 and an elastic component 13. The plurality of pressing components 11 are used to press a plurality of cables 200, and the number of pressing components 11 is set corresponding to the number of cables 200, that is, one pressing component 11 presses one cable 200. The plurality of pressing components 11 are located on the same side of the connecting component 12, which can facilitate the simultaneous pressing of the plurality of cables 200 by the plurality of pressing components 11. The elastic component 13 is connected to the pressing component 11 and is used to press the ends of the plurality of pressing components 11 against the plurality of cables 200. Since in the radiation unit 6, a plurality of components need to be assembled, and finally when installing the plurality of cables 200, there may be errors at the pressing points of the plurality of cables 200, such as being different from the preset positions. However, through the setting of the elastic component 13 in the present disclosure, height compensation will be carried out, so that the plurality of cables 200 can be pressed, which is helpful for welding and improves the quality of the solder joints. It avoids the problem that one or more of the cables 200 cannot be pressed tightly due to errors, thus avoiding the problem of poor solder joints.

[0037] Among them, four cables 200 can be provided, and the cables 200 will be installed at the set positions of the radiation unit 6. Then, two of the cables 200 are welded at one solder joint after butt joint, and the other two cables 200 are welded at another solder joint after butt joint. Before welding in the present disclosure, the cables 200 are pressed by the pressing assembly, so that the set pressing components 11 correspond to the cables 200 one by one. This not only saves manual pressing, but also performs pressure compensation through the elastic component 13, enabling each cable 200 to be pressed tightly, and then welding is carried out. This not only has simple operation, but also improves the quality of the solder joints.

[0038] In addition, the pressing components 11 are connected to the four corners of the connecting component 12 for pressing the four cables 200.

[0039] The above welding method can be reflow soldering.

[0040] In some embodiments, the pressing member 11 includes a pressing portion 111 and a sleeving portion 112. A through hole is formed in the connecting member 12. The pressing portion 111 is used to press the cable 200. The sleeving portion 112 penetrates through the outer wall of the through hole and is provided with a limiting portion 14. The arrangement of the limiting portion 14 can prevent the sleeving portion 112 from detaching from the connecting member 12. An elastic member 13 is sleeved outside the sleeving portion 112. Both ends of the elastic member 13 are abutted against the pressing portion 111 and the connecting member 12, so that the elastic member 13 is always in a squeezed state. When the four pressing portions 111 press the cable 200, the squeezed states of the four elastic members 13 are the same or different. Pressure compensation can be carried out by squeezing the elastic member 13, and each cable 200 is pressed.

[0041] Among them, the elastic member 13 can be a spring. The spring is sleeved on the sleeving portion 112, and both ends of the spring are abutted against the pressing portion 111 and the connecting member 12 through.

[0042] In addition, the limiting portion 14 can be a snap ring stuck on the outer wall or end of the sleeving portion 112. The diameter of the snap ring is larger than the diameter of the through hole, and it can prevent the snap ring from detaching from the connecting member 12 during use.

[0043] The through hole in the above-mentioned connecting member 12 can play a guiding role for the sleeving portion 112 to ensure the vertical movement of the pressing assembly 11.

[0044] In other embodiments, the pressing member 11 includes a pressing portion 111, a sleeving portion 112 and a connecting portion. The pressing portion 111 is used to press the cable 200. The connecting portion is connected to the connecting member 12. The sleeving portion 112 is connected between the pressing portion 111 and the connecting portion. The sleeving portion 112 can extend into the pressing portion 111 and / or the connecting portion and is slidably connected to the pressing portion 111 and / or the connecting portion. The height of the pressing member 11 can be adjusted by the movement of the sleeving portion 112 in the pressing portion 111 and / or the connecting portion. A limiting portion 14 is arranged at the end of the sleeving portion 112. The arrangement of the limiting portion 14 can prevent the sleeving portion 112 from detaching from the pressing portion 111 and / or the connecting portion. An elastic member 13 is sleeved outside the sleeving portion 112. Both ends of the elastic member 13 are abutted against the pressing portion 111 and the connecting portion, so that the elastic member 13 is always in a squeezed state. When the four pressing portions 111 press the cable 200, the squeezed states of the four elastic members 13 are the same or different. Pressure compensation can be carried out by squeezing the elastic member 13, and each cable 200 is pressed.

[0045] Among them, the elastic member 13 can be a spring. The spring is sleeved on the sleeving portion 112, and both ends of the spring are abutted against the pressing portion 111 and the connecting member 12 through.

[0046] Of course, the position of the elastic member 13 is not limited to the positions of the above two structures only, and it can also be set at other positions, as long as it can enable the pressing member 11 to perform pressure compensation, and no specific limitation is made here.

[0047] In some embodiments, a first connecting member 15 is further provided on the connecting member 12. The first connecting member 15 is connected to a second connecting member 21 on the welding tooling 100, and is used to connect the pressing member 11 to the welding tooling 100 and press the cable 200.

[0048] Wherein, the first connecting member 15 includes a first magnet, and the second connecting member 21 includes a second magnet. The first magnet and the second magnet attract each other, and the connecting member 12 is installed on the welding tooling 100 through the suction force. And through the suction force between the magnets, the pressing member 11 can press the cable 200, avoiding the deformation of the cable 200 caused by heat during the reflow soldering process, resulting in poor solder joints. It not only has a simple structure, but also is convenient to use and has a good pressing effect.

[0049] In addition, the first magnet and the second magnet can be strong magnets.

[0050] As Figures 2 - 9 shown, the embodiment of the present disclosure provides a welding tooling 100, including a support member 2 and a pressing block assembly 1; a second connecting member 21 is provided at the top of the support member 2, and a first connecting member 15 that cooperates with the second connecting member 21 is provided at the bottom of the connecting member 12 of the pressing block assembly 1. The connecting member 12 can be pressed on the top of the support member 2, and then the cable 200 is pressed by the pressing member 11.

[0051] Wherein, a first receiving groove is provided at the bottom of the connecting member 12 for receiving the first connecting member 15, and a second receiving groove is provided at the top of the support member 2 for receiving the second connecting member 21. After the first connecting member 15 and the second connecting member 21 are connected, the pressing block assembly 1 can be connected to the support member 2.

[0052] In addition, the first connecting member 15 includes a first magnet, and the second connecting member 21 includes a second magnet. The first magnet and the second magnet attract each other, and the connecting member 12 is installed on the top of the support member 2 through the suction force. And through the suction force between the magnets, the pressing member 11 can press the cable 200.

[0053] The top of the above-mentioned first magnet can be adhesively bonded to the first receiving groove, and the bottom of the second magnet can be adhesively bonded to the second receiving groove, so as to fix the two magnets.

[0054] In some embodiments, the welding fixture 100 further includes a hollow bottom plate 3, and the hollow bottom plate 3 is connected below the support member 2. Since hot air will be blown out from above and below simultaneously during welding, the design of the hollow bottom plate 3 can ensure that the temperature of the solder joints is not affected, and at the same time, it also has functions such as support, positioning, shape correction, and anti-fooling.

[0055] In some embodiments, the welding fixture 100 further includes a support plate 4 and support columns 5. The support plate 4 is connected to the hollow bottom plate 3 through the support columns 5, which has the advantages of simple structure and convenient installation.

[0056] In some embodiments, the welding fixture 100 is mainly used for welding the radiation unit 6. Among them, the radiation unit 6 includes a base 61 and a balun arm 62 connected to the base 61. The base 61 is arranged between the hollow bottom plate 3 and the pressing block assembly 1. The base 61 is fixedly connected to the hollow bottom plate 3, and the pressing block assembly 1 presses the cable 200 on the bottom plate. The balun arm 62 is connected to the support plate 4, and the support plate 4 can support four balun arms 62.

[0057] Among them, an oscillator slot 621 is provided on the balun arm 62, and at least part of the cable 200 is clamped into the oscillator slot 621 to clamp the cable 200 tightly; a hole 611 for placing the feeding piece 7 is provided on the base 61. After the feeding gasket is placed into the hole 611, the ends of the two cables 200 are extended into the hole 611, and then spot soldering is carried out first, and then welding is carried out.

[0058] In summary, for the welding fixture 100 provided by the embodiments of the present disclosure, during use, first place the feeding piece 7 into the corresponding hole 611, then clamp the cable 200 into the oscillator slot 621 of the balun arm 62, and the ends of two cables 200 extend to the hole 611, and then press the cable 200 on the base 61 through the pressing component, and then carry out spot soldering and welding at the hole 611. Through the setting of the pressing component, multiple cables 200 can be pressed simultaneously, and the quality of the solder joints can be improved during welding. Through the setting of the hollow bottom plate 3, it can ensure that the temperature of the solder joints is not affected, and at the same time, it also has functions such as support, positioning, shape correction, and anti-fooling. Since all the solder joints of the welding fixture 100 can be exposed to the outside during welding, it is applicable to manual spot soldering and automatic spot soldering. Using a reflow oven for welding, all solder joints are completed at one time, simplifying the original complicated welding process. It meets the requirements of flow production, has high production efficiency, simple and effective welding method, and is also convenient for inspecting defective solder joints.

[0059] Such as Figure 10As shown in the figure, an embodiment of the present disclosure provides a bending device, which includes a first bending member 8. The first bending member 8 includes a holding portion 81, a first pressing plate 82 and a second pressing plate 83. One end of the first pressing plate 82 is rotatably connected to the holding portion 81, and the other end of the first pressing plate 82 is rotatably connected to the second pressing plate 83. The clamping and rotation of the first pressing plate 82 and the second pressing plate 83 are used to bend the cores 201 of multiple cables 200 simultaneously, ensuring the consistency of the shapes of the cores 201, so that the cores 201 can be accurately placed in the specified welding grooves after the cables 200 are assembled. At this time, the cores 201 are pre-bent to prevent their shapes when placed in the radiation unit 6.

[0060] In some embodiments, the first pressing plate 82 is rotatably connected to the holding portion 81 through a first rotating shaft. Generally, the first pressing plate 82 is rotated clockwise. The first pressing plate 82 includes a cylinder 821 sleeved outside the first rotating shaft. When the first pressing plate 82 rotates, the cylinder 821 can bend a part of the cores 201 into a first bending portion. The first pressing plate 82 is connected to the second pressing plate 83 through a second rotating shaft. When the second pressing plate 83 rotates close to the first pressing plate 82, that is, when the second pressing plate 83 rotates clockwise, the main body portion of the first pressing plate 82 and the second pressing plate 83 can bend another part of the cores 201 into a second bending portion. The shape of the cores 201 formed by the first bending portion and the second bending portion is the same as the shape of the cores 201 required in the radiation unit 6. At this time, the pre-bending is completed.

[0061] Among them, a convex platform 822 for aligning the ends of the cores 201 is provided on the main body portion of the first pressing plate 82, and a groove cooperating with the convex platform 822 is provided on the second pressing plate 83. The convex platform 822 can align and limit the cores 201. After the groove cooperates with the convex platform 822, the end portion of the second plate body can press another part of the cores 201 to bend this part of the cores 201 into a second bending portion.

[0062] As Figure 11 shown, the bending device provided by the embodiment of the present disclosure further includes a second bending member 9. A bending groove 91 is formed on the second bending member 9. The cable 200 further includes a wire body 202. The bending groove 91 is used to bend the wire body 202, and the shape of the bending groove 91 is the same as the shape of the wire body 202 required in the radiation unit 6. Therefore, there is no need for manual bending of the wire body 202 during installation, reducing the assembly difficulty.

[0063] As Figure 12 shown, the embodiment of the present disclosure also provides a welding method for a radiation unit 6. The method includes:

[0064] S101: Bend the core 201 of the cable 200 into the shape required for the radiation element 6 through the first bending member 8 to ensure the consistency of the shape of the core 201; bend the cable body 202 of the cable 200 into the shape required for the radiation element 6 through the second bending member 9, eliminating the need for manual bending of the cable body 202.

[0065] S102: Install the feeding piece 7 on the hole position 611 of the radiation element 6 and press the feeding piece 7 slightly.

[0066] S103: Sequentially place the bent cable body 202 into the oscillator slots 621 of the corresponding balun arms 62, place the dielectric part 203 of the core 201 at one end of the cable 200 into the dielectric slot 622 of the balun arm 62, insert the cores 201 at the other ends of the two cables 200 into the hole position 611 of the feeding piece 7, and then clamp the cable 200 to prevent it from shaking.

[0067] S104: Place the installed feeding piece 7 and radiation element 6 into the soldering fixture 100 according to the markings.

[0068] S105: Place the pressure block assembly 1 into the soldering fixture 100 according to the markings, and then tighten the cable 200 through the connection of the first connecting member 15 and the second connecting member 21. At this time, all the cables 200 distributed on the base 61 are tightened by the tightening member 11 on the pressure block assembly 1.

[0069] S106: Place the soldering fixture 100 with the radiation element 6 on the soldering machine and solder the solder joints at the hole position 611, that is, the feeding piece 7 and the cores 201 at the other ends of the cable 200.

[0070] After soldering, check that there are no fitting problems with the fixture and then perform reflow soldering. After the product is taken out of the furnace, conduct QC inspection to finally complete the soldering of the product.

[0071] In summary, when welding the radiation element 6 provided by the embodiment of the present disclosure, through the setting of the pressing assembly, multiple cables 200 can be simultaneously tightened, improving the quality of the solder joints during welding. Through the setting of the hollow bottom plate 3, the temperature of the solder joints can be ensured not to be affected, and at the same time, it also has functions such as support, positioning, shaping, and anti-fooling. Since all the solder joints can be exposed outside during welding with the soldering fixture 100, it is applicable to manual soldering and automatic soldering. Using a reflow furnace for soldering, all the solder joints are completed at one time, streamlining the original complicated soldering process. It meets the requirements of assembly line operation, has high production efficiency, simple and effective welding methods, and is also convenient for inspecting defective solder joints.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0073] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bending device, characterized in that, Comprising a first bending member (8), the first bending member (8) includes a holding portion (81), a first pressing plate (82) and a second pressing plate (83), one end of the first pressing plate (82) is rotatably connected to the holding portion (81), and the other end of the first pressing plate (82) is rotatably connected to the second pressing plate (83); The clamping and rotation of the first pressing plate (82) and the second pressing plate (83) are used to bend the cores (201) of multiple cables (200) simultaneously; The first pressing plate (82) is rotatably connected to the holding portion (81) through a first rotating shaft, the first pressing plate (82) includes a cylinder (821) sleeved outside the first rotating shaft, and the cylinder (821) bends a part of the cores (201) into a first bending portion; The first pressing plate (82) is connected to the second pressing plate (83) through a second rotating shaft. When the second pressing plate (83) rotates close to the first pressing plate (82), the main body portion of the first pressing plate (82) and the second pressing plate (83) bend another part of the cores (201) into a second bending portion; The shape of the cores (201) formed by the first bending portion and the second bending portion is the same as the shape of the cores (201) required in the radiation unit (6).

2. The bending device according to claim 1, characterized in that, The main body portion of the first pressing plate (82) is provided with a convex platform (822) for aligning the ends of the cores (201), and the second pressing plate (83) is provided with a groove cooperating with the convex platform (822).

3. The bending device according to claim 1, wherein Further comprising a second bending member (9); A bending groove (91) is formed on the second bending member (9), the cable (200) further includes a wire body (202), and the bending groove (91) is used for bending the wire body (202); The shape of the bending groove (91) is the same as the shape of the wire body (202) required in the radiation unit (6).

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