PCB circuit board welding jig

Abstract

The utility model discloses a kind of PCB circuit board welding jigs, including plate body, PCB board and spring, one side of the PCB board is provided with welding tray and patch component, the other end of the PCB board is provided with the large component that is penetrated with the welding tray, the plate body is provided with auxiliary module, the auxiliary module is provided with protective stop seat, the both ends of the spring are provided with narrow mouth end and wide mouth end respectively, the side of the protective stop seat is provided with the installation groove connected with the narrow mouth end, the auxiliary module is provided with the welding groove for the welding of large component and welding tray, the auxiliary module is located at the upside of the PCB board, the large component is located at the downside of the PCB board, the spring is located between the auxiliary module and the PCB board, for the simultaneous wave-soldering of spring and large component. The welding jig can conveniently spring welding on PCB circuit board, increase spring welding stability and yield.

Description

Technical Field

[0001] This utility model relates to a fixture, and more particularly to a PCB circuit board soldering fixture. Background Technology

[0002] PCB (Printed Circuit Board), also known as a printed circuit board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. With the miniaturization and high performance of electronic products, the density of PCBs is increasing, placing higher demands on soldering techniques.

[0003] When soldering components on existing PCB circuit boards (hereinafter referred to as PCBs), depending on the component specifications, small components such as surface mount components are soldered to the PAD side of the PCB using reflow soldering; for larger components, wave soldering is used, where the component passes through the through-hole component side of the PCB and is also soldered to the PAD side. However, currently, soldering springs onto PCBs requires manual soldering or surface mount soldering, lacking dedicated soldering fixtures, making the process quite difficult. Therefore, it is necessary to design a PCB soldering fixture that facilitates the simultaneous soldering of large components and springs on PCBs, offering high stability and yield. Utility Model Content

[0004] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a PCB circuit board welding fixture, which enables the simultaneous welding of large components and springs on the PCB circuit board, thereby increasing the stability of spring welding and the yield rate.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A PCB circuit board soldering fixture includes a board body, a PCB board, and a spring. One side of the PCB board is provided with a soldering pad and a surface mount component. The other end of the PCB board is provided with a large component that penetrates through the soldering pad. An auxiliary module is provided on the board body, and a protective stop is provided on the auxiliary module. The two ends of the spring are respectively provided with a narrow end and a wide end. One side of the protective stop is provided with a mounting groove that connects to the narrow end. The auxiliary module is provided with a soldering groove for soldering the large component to the soldering pad, for simultaneous soldering of the spring and the large component.

[0007] Preferably, the auxiliary module is located on the upper side of the PCB board, the bulk component is located on the lower side of the PCB board, and the spring is located between the auxiliary module and the PCB board for simultaneous wave soldering of the spring and the bulk component.

[0008] Preferably, the auxiliary module has a mating groove on the same side as the mounting groove, and the mating groove matches the position and shape of the surface mount component for limiting the PCB board on the board body.

[0009] Preferably, the auxiliary module has a mating groove on the same side as the mounting groove, and the auxiliary module is provided with a positioning post that penetrates the PCB board, and the height of the positioning post is higher than the height of the spring.

[0010] Preferably, the mounting groove has a frustum-shaped structure, the height of the spring is higher than the groove height of the mounting groove, and the size of the wide end is larger than the size of the protective stop, for welding the spring to the PCB board.

[0011] Preferably, the plate body is threaded with fixing posts on all four sides, and a rotating clamp is sleeved on the outside of the fixing posts for fixing the PCB board.

[0012] Preferably, the PCB board is provided with a solder ring that mates with the wide end, and both sides of the solder ring are provided with extended solder pads.

[0013] Preferably, the protective stop is through-engaged with the auxiliary module, and both ends of the protective stop are provided with an extension piece, which is connected to the auxiliary module by the same through bolt.

[0014] Compared with existing technologies, the PCB circuit board welding fixture provided by this utility model facilitates the simultaneous welding of large components and springs on PCB circuit boards, increasing the stability and yield of spring welding. Specifically, by setting a protective stop on the board body, the spring is easily limited on the board body. Through the auxiliary module and the PCB board using positioning pins for limiting connection, the wide end of the spring can be exposed outside the protective stop. Then, through the shielding of the PCB board by the auxiliary module, it is convenient to weld the wide end of the spring to the welding ring and the extended welding pad at the same time as welding large components to the welding pad during wave soldering of the PCB circuit board, increasing the efficiency of spring welding, improving the yield of spring welding, and increasing the stability and convenience of welding components on the PCB board.

[0015] Furthermore, by clamping the board body and the PCB board with a rotating clamp, it is easy to disassemble the PCB board and the fixture, and facilitate the limit connection between the fixture and the PCB board; the detachable setting between the protective stop and the auxiliary module facilitates the welding of springs at different positions, increases the flexibility of the fixture in welding springs on the PCB board and the practicality of the fixture welding, and improves the use effect of the fixture.

[0016] It should be understood that the general descriptions and details herein are exemplary and illustrative only and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or exemplary embodiments of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the PCB circuit board welding fixture of this utility model;

[0019] Figure 2 This is a partial structural diagram of the auxiliary module in the PCB circuit board welding fixture of this utility model;

[0020] Figure 3 This is an exploded view of the auxiliary module and PCB board in the PCB circuit board welding fixture of this utility model;

[0021] Figure 4 This is a partial structural cross-sectional view of the auxiliary module and PCB board in the PCB circuit board welding fixture of this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of the structure of A in the middle;

[0023] Figure 6 This is an exploded view of the protective stop and auxiliary module in the PCB circuit board welding fixture of this utility model.

[0024] Key reference numerals:

[0025] 1. Board body; 2. PCB board; 3. Auxiliary module; 4. Mating groove; 5. Soldering groove; 6. Protective stop; 7. Mounting groove; 8. Spring; 9. Narrow end; 10. Wide end; 12. Fixing post; 13. Rotating clamp; 14. Soldering pad; 15. Surface mount component; 16. Large component; 17. Soldering ring; 18. Extended solder pad; 19. Epitaxial wafer; 20. Through bolt; 21. Positioning post. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Note: The described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] As attached Figure 1 To be continued Figure 6 As shown, the PCB circuit board soldering fixture provided in the embodiment of this utility model currently allows for the soldering of electronic components on the surface of PCB board 2. A large component 16 is placed on the through-hole component side of PCB board 2, and its pins pass through the PCB board 2 to limit its position. Wave soldering is then used to solder the large component 16 onto the pads on the PAD side of PCB board 2. Then, a surface mount component 15 is placed on the corresponding pads on the PAD side, and reflow soldering is used to solder the surface mount component 15 to PCB board 2. For the spring 8, manual or surface mount soldering methods are often used. To more efficiently solder the spring 8, the surface mount component 15 can first be soldered onto the PCB board 2 using reflow soldering. Then, by setting an auxiliary module 3 structure on the board body 1, the fixture board body 1 can be placed on the PCB board 2. The auxiliary module 3 is used to shield the surface mount component 15 and its solder joints on the PCB board 2, facilitating the wave soldering operation of the PCB board 2. Next, a protective stop 6 for connecting the spring 8 is set on the auxiliary module 3. Then, narrow ends 9 and wide ends 10 are respectively set on both ends of the spring 8. A mounting groove 7 is opened on one side of the protective stop 6 to allow the narrow ends of the spring 8 to be connected. The opening 9 can be locked in the protective stop 6. When the fixture is used for soldering PCB board 2, the board 1 will be placed on PCB board 2 and pressure will be applied to the spring 8. The spring 8 will be squeezed between the two boards. Through the soldering groove 5 opened on the auxiliary module 3 for soldering large component 16 and soldering pad 14, the soldering pad where the large component 16 is located can be directly exposed. The wide opening 10 of the spring 8 is exposed in the soldering groove 5 at the same time. By using the wave soldering of the large component 16, the large component 16 and the spring 8 can be soldered at the same time, so that the spring 8 and the large component 16 are soldered on PCB board 2 at the same time, improving the soldering efficiency and realizing the efficient soldering of the spring 8.

[0028] Secondly, such as Figure 3 As shown, when the fixture is used for soldering PCB board 2, the auxiliary module 3 is placed on the upper side of PCB board 2, the large component 16 is placed on the lower side of PCB board 2, and the spring 8 is located between the auxiliary module 3 and PCB board 2, so that the spring 8 and the large component 16 can be soldered onto PCB board 2 simultaneously using wave soldering.

[0029] Secondly, to facilitate a more secure fit of board 1 onto PCB board 2, such as... Figure 2 As shown, in some embodiments, a mating groove 4 can be formed on the auxiliary module 3. The mating groove 4 is on the same side as the mounting groove 7. By specifically setting the position and shape of the mating groove 4 and the surface mount component 15, it is convenient for the mating groove 4 to match the surface mount component 15, thereby limiting the position of the PCB board 2, increasing the connection stability between the board body 1 and the PCB board 2, and thus improving the soldering stability of the components.

[0030] To facilitate the exposure of the solder pads on PCB 2 during soldering, such as Figure 3 As shown, the welding groove 5 and the auxiliary module 3 need to be connected to facilitate the welding of components. In order to facilitate the fixture to smoothly limit the spring 8 and the PCB board 2, a positioning post 21 can be set on the auxiliary module 3, and the height of the positioning post 21 is higher than the height of the spring 8. When the fixture assists in welding the spring 8, the PCB board can pass through the positioning post 21 and be limited on the fixture, so as to smoothly compress the spring 8, avoid misalignment between the board 1 and the spring 8, and increase the stability of the fixture in limiting the spring 8.

[0031] It is worth noting that, in order to achieve the auxiliary welding of the jig to the spring 8, such as... Figure 4 and 5 As shown, in some embodiments, the groove of the mounting groove 7 can be set as a frustum-shaped structure, and the height of the spring 8 can be higher than the groove height of the mounting groove 7, which facilitates the welding of the wide end 10 to the PCB board 2. Then, the size of the wide end 10 is set to be larger than the size of the protective stop 6, so that the wide end 10 can be exposed from the welding groove, which facilitates the welding of the spring 8 to the PCB board 2, improves the welding efficiency of the spring 8, and saves manual positioning for manual welding and surface mount welding of the spring 8.

[0032] Secondly, in order to increase the connection strength between board 1 and PCB board 2, such as Figure 1 and 2 As shown, in some embodiments, fixing posts 12 can be provided around the board 1, and then a rotating clamp 13 can be sleeved on the outside of the fixing posts 12. The angle of use of the rotating clamp 13 can be adjusted by the threaded connection between the fixing posts 12 and the board 1. When the rotating clamp 13 rotates onto the PCB board 2, it can fix the PCB board 2. When the rotating clamp 13 leaves the PCB board 2, the PCB board 2 can be taken out.

[0033] Furthermore, such as Figure 3As shown, in some embodiments, a welding ring 17 is provided on the PCB board 2. When the spring 8 is welded to the PCB board 2, the wide end 10 will be in contact with the welding ring 17. Then, the expansion pads 18 provided on both sides of the welding ring 17 are used to facilitate the welding of the spring 8 to the PCB board 2, thereby increasing the welding area between the spring 8 and the PCB board 2 and improving the welding firmness between the spring 8 and the PCB board 2.

[0034] Meanwhile, in some embodiments, the protective stop 6 can be detachably installed in the auxiliary module 3, such as... Figure 6 As shown, the protective stop 6 can be inserted and snapped into the auxiliary module 3. Then, an extension plate 19 is set at both ends of the protective stop 6. The extension plate 19 is used as the connection structure of the protective stop 6. By fitting a through bolt 20 on the extension plate 19, the through bolt 20 passes through the auxiliary module 3 and is fixed on the plate 1. This is very beneficial for the welding spring 8 of the fixture.

[0035] Of course, the above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A PCB board soldering fixture, comprising a board body (1), a PCB board (2), and a spring (8), wherein a soldering pad (14) and a surface mount component (15) are provided on one side of the PCB board (2), and a large component (16) penetrating through the soldering pad (14) is provided at the other end of the PCB board (2), characterized in that: An auxiliary module (3) is provided on the plate (1), and a protective stop (6) is provided on the auxiliary module (3). The two ends of the spring (8) are respectively provided with a narrow end (9) and a wide end (10). A mounting groove (7) connected to the narrow end (9) is provided on one side of the protective stop (6). A welding groove (5) is provided on the auxiliary module (3) for welding the large component (16) to the welding plate (14) for simultaneous welding of the spring (8) and the large component (16).

2. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The auxiliary module (3) is located on the upper side of the PCB board (2), the bulk component (16) is located on the lower side of the PCB board (2), and the spring (8) is located between the auxiliary module (3) and the PCB board (2) for simultaneous wave soldering of the spring (8) and the bulk component (16).

3. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The auxiliary module (3) and the mounting slot (7) are provided with a mating slot (4) on the same side. The mating slot (4) matches the position and shape of the patch element (15) and is used to limit the PCB board (2) on the board body (1).

4. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The welding groove (5) is connected to the auxiliary module (3). The auxiliary module (3) is provided with a positioning post (21) that penetrates the PCB board (2). The height of the positioning post (21) is higher than the height of the spring (8).

5. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The mounting groove (7) has a frustum-shaped structure. The height of the spring (8) is higher than the height of the mounting groove (7). The size of the wide end (10) is larger than the size of the protective stop (6) and is used for welding the spring (8) to the PCB board (2).

6. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The plate (1) is threaded with fixing posts (12) around its perimeter. The fixing posts (12) are fitted with rotating clips (13) for fixing the PCB board (2).

7. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The PCB board (2) is provided with a welding ring (17) that is connected to the wide end (10), and the welding ring (17) is provided with extended pads (18) on both sides.

8. The PCB circuit board soldering fixture as described in claim 1, characterized in that, The protective stop (6) is connected to the auxiliary module (3) through a through-hole. Both ends of the protective stop (6) are provided with an extension piece (19). The extension piece (19) and the auxiliary module (3) are connected through a through bolt (20).

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