CN113714593B

CN113714593B - Welding fixture

Info

Publication number: CN113714593B
Application number: CN202110862281.1A
Authority: CN
Inventors: 林玉嘉
Original assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Current assignee: Comba Telecom Technology Guangzhou Ltd; Jingxin RF Technology Guangzhou Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-07-14
Anticipated expiration: 2041-07-29
Also published as: CN113714593A; CN115780953A

Abstract

The disclosure relates to the technical field of antennas, and in particular relates to a pressing block assembly, a welding tool, a bending device and a welding method. The pressing block assembly comprises a plurality of pressing parts, connecting parts and elastic parts, wherein the pressing parts are used for pressing a plurality of cables, the number of the pressing parts is corresponding to that of the cables, and namely one pressing part presses one cable. The plurality of compressing members are located on the same side of the connecting member, so that the plurality of compressing members can conveniently compress a plurality of cables simultaneously, and the elastic member is connected to the compressing members and used for enabling the end parts of the plurality of compressing members to be compressed on the plurality of cables. Because in the radiating element, a plurality of parts need to be assembled, finally when a plurality of cables are installed, errors can exist at the compaction points of the plurality of cables, such as the positions different from the preset positions, and the height compensation can be performed through the arrangement of the elastic parts, so that the plurality of cables can be compacted, welding is facilitated, and the quality of welding spots is provided.

Description

Welding fixture

Technical Field

The disclosure relates to the technical field of antennas, in particular to a welding tool.

Background

In the communication industry, with the development of the field of base station antennas, miniaturized, multi-band and multi-system base station antennas are becoming mainstream antennas applied in the communication industry. In order to improve space utilization, the current multi-band and multi-system antennas generally adopt a coaxial nested structure, i.e. a high-frequency radiation unit is embedded into a low-frequency radiation unit. However, the radiation unit has a complex structure, a large quantity of tiny materials and a small operable space, so that not only is the staff difficult to operate, but also the problem of bad welding spots is easy to occur.

Disclosure of Invention

In order to solve the technical problems described above or at least partially solve the technical problems described above, the present disclosure provides a welding fixture.

The disclosure provides a welding fixture for welding cables in a radiating unit, comprising a briquetting assembly and a supporting part;

the briquetting component comprises a plurality of compaction parts, a connecting part and an elastic part;

the plurality of pressing parts are used for pressing a plurality of cables, and the number of the pressing parts is corresponding to the number of the cables;

the connecting part is connected with a plurality of the pressing parts;

the elastic component is connected to the pressing component and is used for pressing the ends of the pressing components on the cables;

the top of supporting part is provided with the second connecting piece, the bottom of the connecting part of briquetting subassembly be provided with the first connecting piece of second connecting piece cooperation connection, so that connecting part connects the top of supporting part.

Optionally, the compressing component comprises a compressing part and a sleeving part, and the connecting component is provided with a through hole;

the compressing part is used for compressing the cable;

the outside cover of portion is established to the cover is established the elastic component, the both ends of elastic component with compress tightly the portion with connecting piece butt, just the portion is established in the cover runs through the outer wall of through-hole sets up spacing portion.

Optionally, the compressing component includes a compressing part, a sleeving part and a connecting part, the compressing part is used for compressing the cable, the connecting part is connected with the connecting component, and the sleeving part is connected between the compressing part and the connecting part;

the sleeving part extends into the compressing part and/or the connecting part and is in sliding connection with the compressing part and/or the connecting part, and the end part of the sleeving part is provided with a limiting part;

the elastic component is sleeved outside the sleeved part, and two ends of the elastic component are in butt joint with the pressing part and the connecting part. Optionally, the connecting component is provided with a first connecting piece, and the first connecting piece is used for being connected with a second connecting piece on the welding tool.

Optionally, the first connector comprises a first magnet, the second connector comprises a second magnet, the first magnet attracts the second magnet, and the connecting part is mounted on the welding tool through the attraction.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the welding fixture provided by the embodiment of the disclosure comprises a plurality of pressing parts, connecting parts and elastic parts, wherein the plurality of pressing parts are used for pressing a plurality of cables, and the number of the pressing parts is set corresponding to the number of the cables, namely one pressing part presses one cable. The plurality of compressing members are located on the same side of the connecting member, so that the plurality of compressing members can conveniently compress a plurality of cables simultaneously, and the elastic member is connected to the compressing members and used for enabling the end parts of the plurality of compressing members to be compressed on the plurality of cables. Because in the radiating element, a plurality of parts need to be assembled, finally when a plurality of cables are installed, errors can exist at the compaction points of the plurality of cables, such as the positions different from the preset positions, and the height compensation can be performed through the arrangement of the elastic parts, so that the plurality of cables can be compacted, welding is facilitated, and the quality of welding spots is provided. The problem of poor welding spots is avoided by avoiding one or more cables from being not tightly pressed due to errors.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view of a briquette assembly according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a welding tool according to an embodiment of the disclosure;

FIG. 3 is a cross-sectional view of a briquette assembly mounted on a support member according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a welding fixture dismounting support member according to an embodiment of the present disclosure;

fig. 5 is a schematic structural view of a welding fixture mounting radiation unit according to an embodiment of the disclosure;

FIG. 6 is a bottom view of a welding tool mounting radiation unit according to an embodiment of the present disclosure;

FIG. 7 is a partial enlarged view of portion A of the embodiment of the present disclosure based on FIG. 6;

FIG. 8 is a partial enlarged view of portion B of the embodiment of the present disclosure based on FIG. 6;

FIG. 9 is a schematic structural view of a cable according to an embodiment of the present disclosure;

fig. 10 is a schematic structural view of a first bending device according to an embodiment of the disclosure;

FIG. 11 is a schematic view of a second bending apparatus according to an embodiment of the present disclosure;

fig. 12 is a process flow diagram of a welding method according to an embodiment of the present disclosure.

Wherein,,

100. welding a tool; 1. a briquetting assembly; 11. a pressing member; 111. a pressing part; 112. a sleeving part; 12. a connecting member; 13. an elastic member; 14. a limit part; 15. a first connector; 2. a support member; 21. a second connector; 3. a hollow bottom plate; 4. a support plate; 5. a support column; 6. a radiation unit; 61. a base; 611. hole sites; 62. balun arm; 621. a vibrator slot; 622. a medium tank; 7. a feeding sheet; 8. a first bending member; 81. a grip portion; 82. a first platen; 821. a column; 822. a boss; 83. a second pressing plate; 9. a second bending member; 91. a bending groove; 200. a cable; 201. a wire core; 202. a wire body; 203. a media section.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

In the prior art, the radiation unit has a complex structure, more tiny materials and smaller operable space, and the radiation unit cable is an embedded cable which is three-dimensional wiring and is difficult for staff to operate; the length of the wire core at the cable stripping opening is longer, the wire core has specific shape requirements during installation, and the operation of staff is difficult and the consistency is difficult to ensure; the bending radian of the wire body of the radiation unit cable is large, the wire body is easy to deform when reflow soldering passes through the furnace, the problem of bad welding spots is easy to occur, the quality of the welding spots is influenced, and the qualification rate of products is low, so that the productivity is insufficient.

Based on this, the embodiment provides a press block assembly, a welding tool, a bending device and a welding method for solving the technical problems.

The following describes a briquette assembly, a welding tool, a bending device and a welding method in detail through specific embodiments:

as shown in fig. 1, the embodiment of the present disclosure provides a press block assembly 1 including a plurality of pressing members 11, a connecting member 12, and an elastic member 13, the plurality of pressing members 11 being for pressing a plurality of cables 200, and the number of pressing members 11 being disposed corresponding to the number of cables 200, i.e., one pressing member 11 pressing one cable 200. The plurality of pressing members 11 are located at the same side of the connection member 12, so that the plurality of pressing members 11 can press the plurality of cables 200 at the same time, and the elastic member 13 is connected to the pressing members 11 for pressing the ends of the plurality of pressing members 11 against the plurality of cables 200. Since in the radiation unit 6, a plurality of components need to be assembled, and finally when a plurality of cables 200 are installed, errors may exist at the pressing points of the plurality of cables 200, for example, the positions may be different from preset positions, and the present disclosure can compensate in height through the arrangement of the elastic components 13, so that the plurality of cables 200 can be pressed tightly, thereby facilitating welding and providing the quality of welding points. The problem of poor welding points is avoided by avoiding one or more cables 200 from being not tightly pressed due to errors.

Wherein four cables 200 may be provided, and the cables 200 may be mounted to the radiation unit 6 at a set position, and then two of the cables 200 are welded at one welding point after being butted, and the other two cables 200 are welded at the other welding point after being butted. The cable 200 is compressed by the compression assembly before welding, so that the set compression parts 11 and the cable 200 are in one-to-one correspondence, manual compression is omitted, pressure compensation is performed through the elastic part 13, each cable 200 can be compressed, then welding is performed, operation is simple, and quality of welding spots is improved.

In addition, pressing members 11 are connected at four corners of the connection member 12 for pressing the four cables 200.

The above-mentioned soldering mode may be reflow soldering.

In some embodiments, the compressing element 11 includes a compressing portion 111 and a sleeving portion 112, the connecting element 12 is provided with a through hole, the compressing portion 111 is used for compressing the cable 200, the sleeving portion 112 penetrates through the outer wall of the through hole to form a limiting portion 14, and the limiting portion 14 can prevent the sleeving portion 112 from being separated from the connecting element 12. The elastic member 13 is sleeved outside the sleeve 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 pressed state, when the four pressing portions 111 press the cables 200, the pressed states of the four elastic members 13 are the same or different, pressure replenishment can be performed by pressing the elastic member 13, and each cable 200 is pressed.

The elastic member 13 may be a spring, which is fitted around the fitting portion 112, and both ends of the spring are brought into contact with the connecting member 12 via the pressing portion 111.

In addition, the limiting portion 14 may be a snap ring clamped on the outer wall or the end portion of the sleeve portion 112, and the diameter of the snap ring is larger than that of the through hole, so that the snap ring can be prevented from being separated from the connecting member 12 during use.

The through hole on the connecting member 12 can guide the sleeved portion 112, so as to ensure that the pressing assembly 11 moves vertically.

In other embodiments, the compressing element 11 includes a compressing portion 111, a sleeving portion 112, and a connecting portion, where the compressing portion 111 is used to compress the cable 200, the connecting portion is connected with the connecting element 12, and the sleeving portion 112 is connected between the compressing portion 111 and the connecting portion. The fitting portion 112 can extend into the pressing portion 111 and/or the connecting portion and be slidably connected to the pressing portion 111 and/or the connecting portion, and the height of the pressing member 11 can be adjusted by the movement of the fitting portion 112 in the pressing portion 111 and/or the connecting portion. The end of the sleeve portion 112 is provided with a limiting portion 14, and the limiting portion 14 is provided to prevent the sleeve portion 112 from being separated from the pressing portion 111 and/or the connecting portion. The elastic member 13 is sleeved outside the sleeve portion 112, and 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 pressed state, and when the four pressing portions 111 press the cables 200, the pressed states of the four elastic members 13 are the same or different, and pressure compensation can be performed by pressing the elastic member 13, so that each cable 200 is pressed.

Of course, the position of the elastic member 13 is not limited to the above two structures, and may be provided at other positions as long as the pressing member 11 can be pressure-compensated, and is not particularly limited herein.

In some embodiments, the connecting member 12 is further provided with a first connecting member 15, and the first connecting member 15 is connected to a second connecting member 21 on the welding fixture 100, so as to connect the pressing member 11 to the welding fixture 100 and press the cable 200.

Wherein, first connecting piece 15 includes first magnet, and second connecting piece 21 includes the second magnet, and first magnet is inhaled with the second magnet, installs connecting piece 12 to welding frock 100 through the suction to can be compressing tightly part 11 before through the magnet and exert pressure cable 200, avoid cable 200 to produce deformation to lead to the solder joint bad because of the solder joint is heated when the reflow soldering passes through the stove, not only simple structure, convenient to use presses effectually moreover.

In addition, the first magnet and the second magnet may be strong magnets.

As shown in fig. 2-9, embodiments of the present disclosure provide a welding fixture 100 comprising a support member 2 and a compact assembly 1; the top of the supporting part 2 is provided with a second connecting piece 21, the bottom of the connecting part 12 of the briquetting assembly 1 is provided with a first connecting piece 15 which is matched and connected with the second connecting piece 21, the connecting part 12 can be pressed on the top of the supporting part 2, and then the cable 200 is pressed by the pressing part 11.

Wherein, connecting piece 12 bottom sets up first holding tank for hold first connecting piece 15, and support part 2 top sets up the second holding tank for hold second connecting piece 21, can be connected briquetting subassembly 1 to support part 2 after first connecting piece 15 is connected with second connecting piece 21.

In addition, the first connector 15 includes a first magnet, the second connector 21 includes a second magnet, the first magnet attracts the second magnet, the connecting member 12 is mounted on top of the supporting member 2 by the attraction force, and the cable 200 can be pressed by the pressing member 11 by the attraction force before the magnets.

The top of the first magnet may be bonded to the first receiving groove, and the bottom of the second magnet may be bonded to the second receiving groove, thereby fixing the two magnets.

In some embodiments, the welding fixture 100 further includes a hollowed-out bottom plate 3, where the hollowed-out bottom plate 3 is connected below the supporting member 2. Because hot air can blow out simultaneously from the upper part and the lower part during welding, the design of the hollowed-out bottom plate 3 can ensure that the temperature of welding spots is not affected, and the device also has the functions of supporting, positioning, correcting, foolproof and the like.

In some embodiments, the welding fixture 100 further comprises a support plate 4 and a support column 5, wherein the support plate 4 is connected with the hollowed-out bottom plate 3 through the support column 5, and has the advantages of simple structure and convenience in installation.

In some embodiments, the welding fixture 100 is mainly used for welding the radiation unit 6, wherein the radiation unit 6 includes a base 61 and a balun arm 62 connected with the base 61, the base 61 is disposed between the hollowed-out bottom plate 3 and the press block assembly 1, the base 61 is fixedly connected with the hollowed-out bottom plate 3, and the press block assembly 1 presses the cable 200 on the bottom plate. The balun arms 62 are connected to the support plate 4, and the support plate 4 is capable of supporting four balun arms 62.

Wherein, the balun arm 62 is provided with a vibrator groove 621, and at least part of the cable 200 is clamped into the vibrator groove 621 to clamp the cable 200; the base 61 is provided with a hole 611 for placing the feeding tab 7, and after the feeding tab is placed in the hole 611, the ends of the two cables 200 are inserted into the hole 611, and then soldered after spot soldering is performed.

In summary, when the welding tool 100 provided in the embodiment of the present disclosure is used, the feeding piece 7 is placed in the corresponding hole site 611, then the cables 200 are clamped into the vibrator grooves 621 of the balun arms 62, wherein the ends of two cables 200 extend to the hole site 611 and then the cables 200 on the base 61 are compressed by the compressing assembly, and then the spot welding and the welding are performed on the hole site 611. Through the setting of compressing tightly the subassembly, can compress tightly many cables 200 simultaneously, can improve the quality of solder joint during the welding. Through the setting of fretwork bottom plate 3, can ensure that the temperature of solder joint is not influenced, still have simultaneously that support, location, shape correcting and prevent functions such as slow-witted. Since the welding tool 100 can expose all welding spots to the outside during welding, the welding tool is applicable to manual tin plating and automatic tin plating. And the reflow furnace is adopted for welding, all welding spots are finished at one time, and the original complicated welding procedure is simplified. Meets the requirements of flow production, has high production efficiency, simple and effective welding mode and is convenient for checking bad welding spots.

As shown in fig. 10, the embodiment of the present disclosure provides a bending device, including a first bending member 8, where 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 rotationally connected with the holding portion 81, and the other end of the first pressing plate 82 is rotationally connected with the second pressing plate 83; the clamping and rotation of the first pressing plate 82 and the second pressing plate 83 are used for simultaneously bending the wire cores 201 of the plurality of cables 200, so that the consistency of the shapes of the wire cores 201 is ensured, and the wire cores 201 can be accurately placed in a specified welding groove after the cables 200 are assembled. At this time, the wire core 201 is pre-bent to prevent the wire core from being placed in the radiation unit 6.

In some embodiments, the first pressing plate 82 is rotatably connected to the holding portion 81 through a first rotation shaft, and the first pressing plate 82 is rotated generally clockwise. The first pressing plate 82 includes a cylinder 821 sleeved outside the first rotating shaft, and when the first pressing plate 82 rotates, the cylinder 821 can bend a part of the wire core 201 into a first bending portion. The first pressing plate 82 is connected with the second pressing plate 83 through the second rotating shaft, and when the second pressing plate 83 rotates close to the first pressing plate 82, namely, the second pressing plate 83 rotates clockwise, the main body part of the first pressing plate 82 and the second pressing plate 83 can bend the other part of the wire core 201 into a second bending part. The shape of the wire core 201 formed by the first bending portion and the second bending portion is the same as the shape of the wire core 201 required in the radiation unit 6, and the pre-bending is completed at this time.

Wherein, the main body of the first pressing plate 82 is provided with a boss 822 for aligning the end of the wire core 201, and the second pressing plate 83 is provided with a groove matched with the boss 822. The boss 822 can align and limit the wire core 201, and after the groove is matched with the boss 822, the end part of the second plate body can compress the other part of the wire core 201 to bend the wire core 201 of the part into a second bending part.

As shown in fig. 11, the embodiment of the disclosure provides a bending device, which includes a second bending member 9, where 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 for bending the wire body 202, and the shape of the bending groove 91 is the same as that of the wire body 202 required in the radiation unit 6, so that the bending wire body 202 does not need to be manually removed during installation, and the assembly difficulty is reduced.

As shown in fig. 12, the embodiment of the present disclosure provides a welding method of the radiation unit 6, which includes:

s101: the wire core 201 of the cable 200 is bent into a shape required by the radiating unit 6 through the first bending part 8, so that the consistency of the shape of the wire core 201 is ensured; the wire body 202 of the cable 200 is bent into the shape required by the radiating element 6 by the second bending member 9 without manually bending the wire body 202.

S102: the feeding tab 7 is mounted on the hole site 611 of the radiating element 6 and the feeding tab 7 is pressed slightly hard.

S103: the bent wire bodies 202 are sequentially placed in the vibrator grooves 621 of the corresponding balun arms 62, the medium portions 203 of the wire cores 201 at one end of the cables 200 are placed in the medium grooves 622 of the balun arms 62, the wire cores 201 at the other ends of the two cables 200 are placed in the hole sites 611 of the feeding sheets 7, and then the cables 200 are clamped to the cables 200, so that the cables 200 are prevented from shaking.

S104: the installed feeding sheet 7 and the radiating unit 6 are placed into the welding fixture 100 according to the marks.

S105: the pressing block assembly 1 is also put into the welding fixture 100 according to the mark, and then the cable 200 is compressed by the connection of the first connecting piece 15 and the second connecting piece 21, and at the moment, all the plurality of cables 200 distributed on the base 61 are compressed by the compressing component 11 on the pressing block assembly 1.

S106: the welding fixture 100 with the radiation unit 6 is placed on a tin plating machine, and tin plating is carried out on welding spots at the hole site 611, namely the feeding sheet 7 and the wire core 201 at the other end of the cable 200.

After the tin spot is finished, the reflow soldering is performed after the checking fixture has no matching problem. And then, after the product is discharged from the furnace, QC inspection is carried out, and finally, the welding of the product is finished.

In summary, the welding method of the radiation unit 6 provided in the embodiment of the present disclosure can compress the plurality of cables 200 simultaneously by setting the compressing assembly during welding, and can improve the quality of the welding spot during welding. Through the setting of fretwork bottom plate 3, can ensure that the temperature of solder joint is not influenced, still have simultaneously that support, location, shape correcting and prevent functions such as slow-witted. Since the welding tool 100 can expose all welding spots to the outside during welding, the welding tool is applicable to manual tin plating and automatic tin plating. And the reflow furnace is adopted for welding, all welding spots are finished at one time, and the original complicated welding procedure is simplified. Meets the requirements of flow production, has high production efficiency, simple and effective welding mode and is convenient for checking bad welding spots.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The above is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Welding fixture (100) for welding cables (200) in a radiating unit (6), the radiating unit (6) comprising a base (61) and a balun arm (62) connected to the base (61), characterized by comprising a press block assembly (1) and a supporting member (2);

a plurality of pressing members (11), wherein the plurality of pressing members (11) are used for pressing a plurality of cables (200), and the number of the pressing members (11) is corresponding to the number of the cables (200);

a connecting member (12), the connecting member (12) connecting a plurality of the pressing members (11);

an elastic member (13), wherein the elastic member (13) is connected to the pressing member (11) and is used for pressing the end parts of a plurality of the pressing members (11) on a plurality of the cables (200);

the top of the supporting component (2) is provided with a second connecting piece (21), and the bottom of the connecting component (12) of the pressing block component (1) is provided with a first connecting piece (15) which is matched and connected with the second connecting piece (21), so that the connecting component (12) is connected to the top of the supporting component (2);

the welding tool (100) further comprises a hollowed-out bottom plate (3), and the hollowed-out bottom plate (3) is connected below the supporting part (2);

the welding tool (100) further comprises a supporting plate (4) and a supporting column (5), and the supporting plate (4) is connected with the hollowed-out bottom plate (3) through the supporting column (5).

2. The welding fixture (100) according to claim 1, wherein the pressing part (11) comprises a pressing part (111) and a sleeving part (112), and the connecting part (12) is provided with a through hole;

the pressing part (111) is used for pressing the cable (200);

the elastic component (13) is sleeved outside the sleeving part (112), two ends of the elastic component (13) are in butt joint with the pressing part (111) and the connecting component (12), and the sleeving part (112) penetrates through the outer wall of the through hole to form a limiting part (14).

3. Welding tool (100) according to claim 1, characterized in that the connecting part (12) is provided with a first connecting piece (15), the first connecting piece (15) being intended to be connected with a second connecting piece (21) on the welding tool (100).