Universal soldering base

Abstract

This utility model discloses a universal solder holding base, including a base, left and right track assemblies, multiple movable positioning pin assemblies, and a central movable top pillar assembly. The base includes a bottom plate and two side support plates. The left and right track assemblies include a left track, a right track, and two sliding rods, with the left and right tracks slidably mounted on the two sliding rods. The movable positioning pin assemblies are arranged in two groups and slidably along the left and right tracks to form a solder holding and storage cavity. The central movable top pillar assembly includes a top pillar mounting and adjustment mechanism and multiple central movable top pillars, with the multiple central movable top pillars sequentially mounted on the top pillar mounting and adjustment mechanism along its length. This utility model, through the sliding adjustment structure of each component, achieves rapid adaptation to different PCBA models, eliminating the need to manufacture dedicated fixtures for each model, reducing capital and resource consumption, shortening production preparation time, and thus improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board assembly (PCBA) processing technology, specifically, it mainly relates to a universal soldering base. Background Technology

[0002] In the automated production process of printed circuit board assemblies (PCBAs), solder clamps are key components that ensure soldering quality and production efficiency. They are mainly used to accurately position and securely clamp the PCBAs, ensuring that the PCBAs do not shift or shake during the soldering process, and to achieve precise solder joint formation. This improves the soldering reliability and consistency of PCBA products. At the same time, the adaptability and versatility of solder clamps are directly related to production cost control, resource utilization efficiency, and production site planning.

[0003] However, in the existing conventional PCBA production model, producing one model of PCBA requires the creation of a corresponding soldering fixture. This means that if 100 different models of PCBA need to be produced, 100 different matching soldering fixtures must be made. This specialized design model, where each soldering fixture needs to be designed, processed, and debugged separately, not only consumes a lot of money but also occupies a lot of human and material resources. It also requires a larger fixture warehouse for storage and management. At the same time, when switching between different models of PCBA, operators need to frequently change the corresponding soldering fixtures, which not only prolongs the production preparation time but also makes it impossible to achieve efficient adaptation to different models of PCBA, thus leading to a decrease in the overall production efficiency of PCBA. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a universal soldering base to solve the problems of incompatibility with different PCBA models and reduced production efficiency.

[0005] This utility model discloses a universal solder holding base, comprising: a base, left and right track assemblies, multiple movable positioning pin assemblies, and a central movable top pillar assembly; the base includes a base plate and two side support plates opposite each other on the same side of the base plate and located at both ends of the base plate; the left and right track assemblies include a left track, a right track, and two sliding rods, the two ends of each sliding rod being respectively located on the top of the opposite side support plates, and the two sliding rods being parallel to each other and at the same height, the two ends of the left track and the right track being slidably mounted on the two sliding rods, the left track and the right track being parallel and at the same height relative to the base plate; the multiple movable positioning pin assemblies are divided into two groups, one group of movable positioning pin assemblies being slidably mounted sequentially on the left track along the length direction of the left track, and the other group of movable positioning pin assemblies being slidably mounted sequentially on the right track along the length direction of the right track; the central movable top pillar assembly is installed in the middle area of ​​the base plate and is parallel to the left and right tracks; wherein, the group of movable positioning pin assemblies mounted on the left track and the other group of movable positioning pin assemblies mounted on the right track form a solder holding cavity.

[0006] According to one embodiment of the present invention, each slider includes a rod body and two sliders; the two ends of the rod body are respectively disposed on the top of the opposite side support plates, and two sliders are slidably disposed on the rod body; the two ends of the left track are respectively connected to the two opposite sliders located on different rod bodies, and the two ends of the right track are respectively connected to the other two sliders of two pairs located on different rod bodies.

[0007] According to one embodiment of the present invention, the movable positioning pin assembly includes a positioning pin and an installation adjusting bolt; the positioning pin includes a sliding part and a limiting part; the sliding part has an elongated mounting hole perpendicular to the left or right track, the installation adjusting bolt passes through the elongated mounting hole and is connected to the left or right track, and the limiting part is located at the end of the sliding part away from the left or right track.

[0008] According to one embodiment of the present invention, the left and right tracks are provided with grooves along their length that are adapted to the bottom of the mounting adjustment bolts, and the mounting adjustment bolts are slidably disposed in the grooves.

[0009] According to one embodiment of the present invention, the positioning part further includes an elastic support structure, which is disposed at the end of the limiting part.

[0010] According to one embodiment of the present invention, the elastic support structure includes a support fixing member and an elastic abutment member; the support fixing member is fixed to the end of the limiting part; the elastic abutment member passes through the end of the support fixing member away from the bottom plate.

[0011] According to one embodiment of the present invention, the base plate is provided with a plurality of fixing holes, which are arranged in two rows. Each row of fixing holes is parallel to the slide rod. One end of the top column mounting adjustment mechanism is connected to a fixing hole in one row by bolts, and the other end of the top column mounting adjustment mechanism is connected to a fixing hole in another row by bolts.

[0012] According to one embodiment of the present invention, the intermediate movable top column assembly includes a top column mounting base, a plurality of fixed columns and a plurality of top columns; the top column mounting base is connected to a fixing hole; the plurality of fixed columns are arranged sequentially on the top column mounting base along the length direction of the top column mounting base, and each fixed column has an insertion groove at its top, into which a top column is inserted, and the top of each top column forms a frustum.

[0013] According to one embodiment of the present invention, the base plate is provided with multiple mounting holes, and multiple top columns of different models are inserted into the multiple mounting holes respectively.

[0014] The beneficial effects of this application are as follows: the base provides stable support for the overall structure; in the left and right track components, the distance between the left and right tracks can be adjusted by sliding along the slide rod, allowing for flexible adjustment of the lateral space of the solder holding cavity according to the width of the PCBA; two sets of movable positioning pin components are respectively slidably set along the left and right tracks, and the positioning points can be precisely adjusted according to the position of the positioning holes on the PCBA, ensuring stable positioning of PCBAs of different sizes; the middle movable top column component, through the top column mounting adjustment mechanism, can drive multiple middle movable top columns to adjust their positions along the length direction, providing adaptive support for the support needs of the bottom of the PCBA. This multi-dimensional adjustable structural design allows one set of solder holding fixtures to be adapted to multiple models of PCBAs, eliminating the need to design, process, and debug dedicated fixtures for each PCBA, significantly reducing the investment of capital, manpower, and materials; at the same time, it eliminates the need for a large warehouse to store a large number of dedicated fixtures, reducing management costs; when switching between different PCBA models in production, only the positions of each component need to be adjusted to complete the adaptation, eliminating the need for frequent fixture changes, greatly shortening production preparation time, and thus effectively improving the overall production efficiency of PCBAs. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the general soldering base in the embodiment;

[0017] Figure 2 This is a three-dimensional structural diagram of the base in the embodiment;

[0018] Figure 3 This is a schematic diagram illustrating the interaction between the left and right track components and the base in the embodiment.

[0019] Figure 4 This is a schematic diagram illustrating the interaction between the left and right track components and multiple movable positioning components in the embodiment.

[0020] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0021] Figure 6 This is a schematic diagram showing the interaction between the movable top column assembly in the middle and the base plate in the embodiment.

[0022] Figure 7 for Figure 6 A magnified view of part B in the diagram.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Base; 11. Base plate; 111. Fixing hole; 112. Mounting hole; 12. Side support plate;

[0025] 2. Left and right track assemblies; 20. Slide groove; 21. Left track; 22. Right track; 23. Slide rod; 231. Rod body; 232. Slider;

[0026] 3. Movable positioning pin assembly; 30. Solder storage cavity; 31. Positioning pin; 311. Sliding part; 3110. Elongated mounting hole; 312. Limiting part; 313. Elastic support structure; 3131. Support fixing part; 3132. Elastic abutment part; 32. Mounting adjustment bolt;

[0027] 4. Movable top column assembly; 41. Top column mounting base; 42. Fixed column; 421. Insertion slot; 43. Top column; 431. Frustum. Detailed Implementation

[0028] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0029] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish items or operations described with the same technical terminology and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with detailed descriptions in conjunction with the accompanying drawings:

[0032] like Figure 1 As shown, Figure 1 This is a three-dimensional structural diagram of the universal soldering base in this embodiment. This embodiment provides a universal soldering base, which includes: a base 1, left and right track assemblies 2, multiple movable positioning pin assemblies 3, and a central movable top post assembly 4. The left and right track assemblies 2 can slide relative to the base 1 along its length, the multiple movable positioning pin assemblies 3 can slide along the left and right track assemblies 2, and the central movable top post assembly 4 can be adjusted in position relative to the base 1. Through the adjustable design of each component, it achieves compatibility with different PCBA models, eliminating the need to manufacture dedicated fixtures for each PCBA, significantly reducing costs and improving production changeover efficiency.

[0033] Please refer to the following: Figure 2 As shown, Figure 2 This is a three-dimensional structural diagram of the base in the embodiment. The base 1 includes a base plate 11 and two side support plates 12 that are opposite each other and located on the same side of the base plate 11 and on the edges of both ends of the base plate 11; the two side support plates 12 are arranged perpendicular to the base plate 11.

[0034] The base plate 11 is a rectangular metal plate that provides a stable support foundation, while the two vertically placed side support plates 12 are used to install the left and right track assemblies 2. Their height is adapted to the height requirements of PCBA soldering operations, ensuring convenient operation for operators.

[0035] Please refer to the following: Figure 3 As shown, Figure 3This is a schematic diagram illustrating the interaction between the left and right track assemblies and the base in the embodiment. The left and right track assemblies 2 include a left track 21, a right track 22, and two sliding rods 23. The two ends of each sliding rod 23 are respectively set on the top of the opposite side support plates 12, and the two sliding rods 23 are parallel to each other and at the same height. The two ends of the left track 21 and the right track 22 are slidably mounted on the two sliding rods 23, and the left track 21 and the right track 22 are parallel and at the same height relative to the base plate 11.

[0036] The left track 21 and the right track 22 can slide along the length of the slide bar 23, and the distance between them can be adjusted to accommodate PCBAs of different widths. This allows for the fulfillment of various size requirements without replacing the track assembly.

[0037] Please refer to the following: Figure 4 As shown, Figure 4 This is a schematic diagram illustrating the interaction between the left and right track components and multiple movable positioning components in an embodiment. The multiple movable positioning components 3 are divided into two groups. One group of movable positioning components 3 is sequentially slidably disposed on the left track 21 along its length, while the other group is sequentially slidably disposed on the right track 22 along its length. A solder storage cavity 30 is formed between the group of movable positioning components 3 on the left track 21 and the other group on the right track 22.

[0038] The movable positioning components 3 can be adjusted by sliding them on the left and right tracks 21 and 22 to change the size and shape of the solder placement cavity 30, precisely adapting to PCBAs of different sizes and pin layouts, achieving stable positioning of the PCBA and preventing PCBA displacement during solder placement. In this example, there are three movable positioning components 3 on the left track 21 and three on the right track 21.

[0039] Please refer to the following: Figure 6 As shown, Figure 6 This is a schematic diagram illustrating the interaction between the central movable top post assembly and the base plate in this embodiment. The central movable top post assembly 4 is installed in the central area of ​​the base plate 11 and is parallel to the left track 21 and the right track 22. When the PCBA board is placed in the solder storage cavity 30 formed between the two sets of movable positioning pin assemblies 3, the central movable top post assembly 4 is located below the PCBA board, which can support the weak area at the bottom of the PCBA, prevent the PCBA from deforming due to force during soldering, and is adaptable to PCBAs of different thicknesses and bottom structures.

[0040] For further details, please review. Figure 3Each slider 23 includes a rod body 231 and two sliders 232; the two ends of the rod body 231 are respectively set on the top of the opposite side support plates 12, and the two sliders 232 are slidably arranged on the rod body 231. The two sliders 232 can slide along the rod body 231. The two ends of the left track 21 are respectively connected to the two opposite sliders 232 located on different rod bodies 231, and the two ends of the right track 22 are respectively connected to the other two sliders 232 located on different rod bodies 231.

[0041] The slider 232 and the rod 231 are fitted with a clearance, which makes the sliding smooth and less prone to jamming. The left track 21 slides synchronously along the two rods 231 through the sliders 232 at both ends, ensuring that the track remains horizontal during the movement and avoiding PCBA positioning deviation due to track tilt. The right track 22 is similar. When adjusted independently, they do not interfere with each other, and the operation is more precise when adapting to PCBAs of different widths.

[0042] For further details, please review. Figure 4 The movable positioning component 3 includes a positioning pin 31 and an adjusting bolt 32. The positioning pin 31 includes a sliding part 311 and a limiting part 312. The sliding part 311 has an elongated mounting hole 3110 perpendicular to the left rail 21 or the right rail 22. The adjusting bolt 32 passes through the elongated mounting hole 3110 and is connected to the left rail 21 or the right rail 22. The limiting part 312 is located at the end of the sliding part 311 away from the left rail 21 or the right rail 22.

[0043] The elongated mounting hole 3110 allows the positioning pin 31 to be finely adjusted along the direction perpendicular to the track. Combined with sliding adjustment along the track direction, when the PCBA board is too long or too short, the mounting adjustment bolt 32 can be loosened, slid along the elongated mounting hole 3110, and then tightened again. This changes the distance between the relative positioning pins 31 mounted on the left track 21 and right track 22, thus accommodating changes in the PCBA board length. Alternatively, the positioning pin 31 can be adjusted to rotate relative to the mounting adjustment bolt 32 to adapt to changes in the outer contour of the PCBA board, thereby achieving in-plane adjustment of the positioning pin 31. This allows for more precise contact with the PCBA edge or avoidance of components on the PCBA. The mounting adjustment bolt 32 is used to fix the position of the positioning pin 31; tightening locks it in place, and loosening allows for sliding adjustment without disassembling the bolt, significantly reducing adjustment time.

[0044] Furthermore, the left track 21 and the right track 22 are provided with grooves 20 along the length direction that are adapted to the bottom of the mounting adjustment bolt 32, and the mounting adjustment bolt 32 is slidably disposed in the grooves 20.

[0045] The slide groove 20 guides the sliding direction of the mounting adjustment bolt 32, preventing the bolt from shifting during adjustment and ensuring that the movable positioning pin assembly 3 slides smoothly along the length of the left track 21 and the right track 22. At the same time, the width of the slide groove 20 is adapted to the bottom of the mounting adjustment bolt 32, preventing the mounting adjustment bolt 32 from shaking and causing the positioning pin 31 to shift, thereby improving the positioning stability of the PCBA.

[0046] Please refer to the following: Figure 5 As shown, Figure 5 for Figure 4 A partially enlarged schematic diagram of part A. The positioning pin 31 also includes an elastic support structure 313, which is located at the end of the limiting part 312.

[0047] The elastic support structure 313 provides cushioning when it comes into contact with the PCBA, preventing damage to the PCBA edges or components caused by rigid contact. At the same time, the elastic force allows the elastic support structure 313 to fit tightly against the PCBA. Even if there are slight dimensional deviations in the PCBA, it can achieve stable positioning through elastic deformation, thus improving the adaptability of the fixture.

[0048] Furthermore, the elastic support structure 313 includes a support fixing member 3131 and an elastic abutment member 3132; the support fixing member 3131 is fixed to the end of the limiting part 312; the elastic abutment member 3132 passes through the end of the support fixing member 3131 away from the bottom plate 11.

[0049] Among them, the support and fixing component 3131 can be made of metal to ensure structural strength, and the elastic abutment component 3132 can be made of silicone or rubber, which has good elasticity and wear resistance, and can prevent slipping and scratching when in contact with PCBA; the elastic abutment component 3132 can move slightly along the axis of the support and fixing component 3131 to further enhance the cushioning effect and adapt to PCBA surfaces with different flatness.

[0050] For further details, please review. Figure 6 The base plate 11 is provided with multiple fixing holes 111, which are divided into two rows. Each row of fixing holes 111 is parallel to the slide rod 23. One end of the top column mounting base 41 is bolted to a fixing hole 111 in one row, and the other end of the top column mounting base 41 is bolted to a fixing hole 111 in another row.

[0051] The two rows of fixing holes 111 are symmetrically distributed. By selecting the fixing holes 111 at different positions to install the top column mounting base 41, the position of the middle movable top column assembly 4 can be adjusted along the direction parallel to the left rail 21 or the right rail 22 to adapt to the support requirements of PCBAs of different lengths. The bolt connection method facilitates disassembly and adjustment, and there is no need to open additional holes on the base plate 11, ensuring the structural integrity of the base plate 11.

[0052] Please refer to the following: Figure 7 As shown, Figure 7 for Figure 6 A partially enlarged schematic diagram of part B. The movable top column assembly 4 includes a top column mounting base 41, multiple fixed columns 42, and multiple top columns 43; the top column mounting base 41 is connected to the fixing hole 111; the multiple fixed columns 42 are arranged sequentially on the top column mounting base 41 along the length direction of the top column mounting base 41, and each fixed column 42 has an insertion groove 421 at its top, into which a top column 43 is inserted, and each top column 43 and the top of the corresponding fixed column 42 form a frustum 431.

[0053] Among them, the height of the top post 43 can be adjusted along the axial direction of the insertion slot 421 to adapt to PCBAs of different thicknesses. The frustum 431 is used to snap the edge of the PCBA or support the boss structure at the bottom of the PCBA to prevent the PCBA from shifting up and down during the soldering process. The combination design of multiple fixed posts 42 and top posts 43 allows for the selection and activation of some top posts 43 according to the support requirements at the bottom of the PCBA, avoiding conflicts between the support position and the PCBA components.

[0054] For further details, please review. Figure 2 The base plate 11 has multiple mounting holes 112, into which multiple top posts 43 of different models are inserted. The mounting holes 112 are used to store spare top posts 43. The different models of top posts 43 have different diameters, heights, and top shapes, which can be quickly replaced according to the specific support requirements of the PCBA. There is no need to carry an additional top post spare parts box, saving operating space and shortening replacement time, thereby further improving production efficiency.

[0055] In summary, traditional PCBA production suffers from high costs and slow changeover due to the use of dedicated soldering fixtures. The universal soldering base in this embodiment addresses these issues by firstly adjusting the left and right track spacing, allowing for bidirectional adjustment of the movable positioning pin, and adjusting the position and height of the central top pillar assembly. This enables the adaptation of PCBAs of different sizes and structures without the need for multiple dedicated fixtures, significantly reducing design, processing, and storage costs. Secondly, the adjustment of each component is simple, eliminating the need to disassemble complex parts, shortening production changeover time, and significantly improving the overall production efficiency of PCBAs.

[0056] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A universal soldering base, characterized in that, include: The base (1), left and right track assemblies (2), multiple movable positioning pin assemblies (3), and a central movable top column assembly (4); the base (1) includes a base plate (11) and two side support plates (12) facing each other on the same side of the base plate (11) and located on the edges of both ends of the base plate (11); the left and right track assemblies (2) include a left track (21), a right track (22), and two slide rods (23), the two ends of each slide rod (23) are respectively set on the top of the two opposite side support plates (12), and the two slide rods (23) are parallel to each other and at the same height, the two ends of the left track (21) and the right track (22) are respectively slidably set on the two slide rods (23), the left track (21) and the right track (22) are parallel to each other and opposite to each other. The base plate (11) has the same height; the multiple movable positioning components (3) are divided into two groups, one group of movable positioning components (3) is slidably disposed on the left track (21) along the length direction of the left track (21), and the other group of movable positioning components (3) is slidably disposed on the right track (22) along the length direction of the right track (22); the middle movable top column assembly (4) is installed in the middle area of ​​the base plate (11) and is parallel to the left track (21) and the right track (22); wherein, a solder storage cavity (30) is formed between the group of movable positioning components (3) disposed on the left track (21) and the other group of movable positioning components (3) disposed on the right track (22).

2. The universal soldering base according to claim 1, characterized in that, Each of the slide bars (23) includes a rod body (231) and two sliders (232); the two ends of the rod body (231) are respectively disposed on the top of the two opposite side support plates (12), and the two sliders (232) are slidably disposed on the rod body (231). The two ends of the left track (21) are respectively connected to the two opposite sliders (232) located on different rod bodies (231), and the two ends of the right track (22) are respectively connected to the other two pairs of sliders (232) located on different rod bodies (231).

3. The universal soldering base according to claim 1, characterized in that, The movable positioning pin assembly (3) includes a positioning pin (31) and an installation adjusting bolt (32); the positioning pin (31) includes a sliding part (311) and a limiting part (312); the sliding part (311) has an elongated mounting hole (3110) perpendicular to the left rail (21) or the right rail (22), the installation adjusting bolt (32) passes through the elongated mounting hole (3110) and is connected to the left rail (21) or the right rail (22), and the limiting part (312) is located at the end of the sliding part (311) away from the left rail (21) or the right rail (22).

4. The universal soldering base according to claim 3, characterized in that, The left track (21) and the right track (22) are provided with grooves (20) along the length direction that are adapted to the bottom of the mounting adjustment bolt (32), and the mounting adjustment bolt (32) is slidably disposed in the grooves (20).

5. The universal soldering base according to claim 3, characterized in that, The positioning pin (31) further includes an elastic support structure (313), which is located at the end of the limiting part (312).

6. The universal soldering base according to claim 5, characterized in that, The elastic support structure (313) includes a support fixing member (3131) and an elastic abutment member (3132); the support fixing member (3131) is fixed to the end of the limiting part (312); the elastic abutment member (3132) passes through the end of the support fixing member (3131) away from the bottom plate (11).

7. The universal soldering base according to claim 1, characterized in that, The base plate (11) is provided with a plurality of fixing holes (111), which are divided into two rows. Each row of fixing holes (111) is parallel to the slide rod (23). One end of the top column mounting base (41) is bolted to one of the fixing holes (111) in one row, and the other end of the top column mounting base (41) is bolted to one of the fixing holes (111) in the other row.

8. The universal soldering base according to claim 7, characterized in that, The intermediate movable top column assembly (4) includes a top column mounting base (41), a plurality of fixed columns (42) and a plurality of top columns (43); the top column mounting base (41) is connected to the fixed hole (111); the plurality of fixed columns (42) are arranged sequentially on the top column mounting base (41) along the length direction of the top column mounting base (41), and each fixed column (42) has an insertion groove (421) at its top, and a top column (43) is inserted into the insertion groove (421) of each fixed column (42), and a frustum (431) is formed at the top of each top column (43).

9. The universal soldering base according to claim 8, characterized in that, The base plate (11) is provided with multiple mounting holes (112), and multiple top columns (43) of different models are inserted into the multiple mounting holes (112).

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