Positioning structure for PCB welding
By designing a positioning structure for welding of PCB boards that combines multiple positioning methods, the problem that traditional welding methods are difficult to meet the needs of large-scale production and high-precision is solved, and the precise position fixation of PCB boards during the welding process is achieved.
Patent Information
- Application Number
- CN202510069309.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-06-10
AI Technical Summary
The traditional welding method is manual welding, which is difficult to meet the needs of large-scale production and high-precision. The lack of accurate positioning structure during automated welding leads to deviations in position of PCB boards, affecting the reliability of electrical connections and product yield and performance.
A positioning structure for welding PCB boards is designed, including intermediate placement grooves, load-bearing blocks, base strips, positioning holes, hollow holes, connecting frames, hooks and positioning plates. Through a combination of various positioning methods, the PCB boards are ensured to be fixed accurately during the welding process.
It effectively avoids position deviation of PCB board during welding, ensures that electronic components can be accurately welded to the corresponding pad position, and improves welding accuracy and product yield.
Smart Images
Figure CN120129170A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic manufacturing, and particularly to a positioning structure for PCB board welding. Background Art
[0002] In the field of electronic manufacturing, printed circuit boards (PCBs) are key basic components of various electronic devices. A large number of electronic components, such as chips, resistors, capacitors, etc., need to be precisely welded on them to achieve the complex functions of electronic devices. With the continuous development of electronic products towards miniaturization, high performance, and multi-functionality, the component layout on the PCB board has become increasingly dense, the pin pitch has become smaller and smaller, and the requirement for welding accuracy has reached an extremely high level. Therefore, there is a particular need for a positioning structure for PCB board welding.
[0003] However, the traditional welding method is manual welding, which is difficult to meet the requirements of large-scale production and high precision. Even though automated welding technology has emerged, during the automated welding process, without a precise positioning structure, the position of the PCB board on the welding equipment is prone to deviation, resulting in misalignment of the welded electronic components, affecting the reliability of electrical connections, and thus reducing the yield and performance of the product. Summary of the Invention
[0004] The purpose of the present invention is to provide a positioning structure for PCB board welding to solve the problems in the above-mentioned background art, that is, the traditional welding method is manual welding, which is difficult to meet the requirements of large-scale production and high precision. Even though automated welding technology has emerged, during the automated welding process, without a precise positioning structure, the position of the PCB board on the welding equipment is prone to deviation, resulting in misalignment of the welded electronic components, affecting the reliability of electrical connections, and thus reducing the yield and performance of the product.
[0005] To achieve the above object, the present invention provides the following technical solution: A positioning structure for PCB board welding, including an intermediate placement groove, a load-bearing block is movably connected to the lower surface of the intermediate placement groove, a base strip is fixedly connected to one side surface of the load-bearing block, positioning holes are opened on the surface of the intermediate placement groove, hollow holes are opened on the surface of the intermediate placement groove, a first connection frame is attached to the upper surface of the intermediate placement groove, a second connection frame is attached to the upper surface of the intermediate placement groove, a connection block is attached to the upper surface of the intermediate placement groove, a snap hook is snap-connected to one side surface of the intermediate placement groove, a rotating shaft is slidably connected to one side surface of the snap hook, a spring is fixedly connected to one side surface of the snap hook, a fixed block is fixedly connected to one side surface of the spring, a positioning plate is fixedly connected to one side surface of the fixed block, a positioning pin is slidably connected to one side surface of the positioning plate, an upper welding hole plate is bolted to the upper surface of the first connection frame, a middle welding hole plate is bolted to the upper surface of the connection block, and a lower welding hole plate is bolted to the upper surface of the second connection frame.
[0006] Preferably, eight groups of base strips are equidistantly arranged on the lower surface of the intermediate placement groove, nine equally spaced protruding blocks protrude above the base strips and are bolted to the intermediate placement groove, and the load-bearing blocks are arranged between the nine protruding blocks above the base strips, with a total of eight groups.
[0007] Preferably, the positioning holes are circular, nine groups are equidistantly opened on the surface of the intermediate placement groove, and each group has sixteen holes. The hollow holes are convex-shaped, eight groups are equidistantly opened on the surface of the intermediate placement groove, and each group has eight holes.
[0008] Preferably, the first connection frame, the second connection frame and the connection block are fixedly connected to the intermediate placement groove by bolts, and the fixed block is fixedly connected to the positioning plate by bolts.
[0009] Preferably, the snap hook forms a rotating structure with the fixed block through the rotating shaft and the spring, and the first connection frame, the second connection frame, the connection block and the positioning plate are in the same plane position.
[0010] Preferably, two groups of positioning plates are arranged on the upper surface of the intermediate placement groove, and multiple groups of positioning pins are arranged on the upper surface of the positioning plate.
[0011] Preferably, the upper welding hole plate, the middle welding hole plate and the lower welding hole plate are connected to one side surfaces of the first connection frame, the connection block and the second connection frame by bolts, and welding holes are opened at corresponding positions for PCB board welding on the upper surface of the upper welding hole plate.
[0012] Preferably, two sets of welding holes are provided on the upper surface of the middle welding hole plate, and each set of welding holes has twenty-two welding holes. Welding holes are provided on the upper surface of the lower welding hole plate at positions corresponding to the welding of the PCB board.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: When using this positioning structure for PCB board welding, first, place the PCB board in the middle placement groove. At this time, the base strip and the load-bearing block provide stable support for it. Then, under the action of the spring, the clamping hook rotates around the rotating shaft and clamps the middle placement groove, initially fixing its horizontal position. Subsequently, the positioning pins on the positioning plate accurately insert into the corresponding positioning holes of the PCB board or contact specific positions to complete precise planar positioning. At the same time, the positioning holes of the middle placement groove cooperate with the external positioning device to further determine its overall position. After that, the first connection frame, the second connection frame, and the connection block are tightly fixed to the middle placement groove through bolts to form a stable frame structure. Finally, the upper welding hole plate, the middle welding hole plate, and the lower welding hole plate are connected to the corresponding frames through bolts according to the welding requirements of the PCB board, enabling the welding head of the welding equipment to perform high-precision welding operations on the electronic components on the PCB board through the welding holes. This positioning structure combines multiple positioning methods, which can effectively avoid the position deviation of the PCB board during the welding process and ensure that the electronic components can be accurately welded to the corresponding pad positions. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic side view external structure diagram of the present invention;
[0015] Figure 2 It is a schematic diagram of the mutual cooperation structure of the middle placement groove, the load-bearing block, and the base strip of the present invention;
[0016] Figure 3 It is a schematic diagram of the mutual cooperation of the first and second connection frames and the connection block of the present invention;
[0017] Figure 4 It is a schematic diagram of the mutual cooperation structure of the clamping hook, the rotating shaft, the spring, and the fixed block of the present invention;
[0018] Figure 5 It is a schematic diagram of the hierarchical observation structure of all layers of the present invention.
[0019] In the figure: 1, middle placement groove; 2, load-bearing block; 3, base strip; 4, positioning hole; 5, hollow hole; 6, first connection frame; 7, second connection frame; 8, connection block; 9, clamping hook; 10, rotating shaft; 11, spring; 12, fixed block; 13, positioning plate; 14, positioning pin; 15, upper welding hole plate; 16, middle welding hole plate; 17, lower welding hole plate. DETAILED DESCRIPTION OF THE INVENTION
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1-5 , the present invention provides a technical solution: a positioning structure for PCB board welding, including an intermediate placement groove 1. A load-bearing block 2 is movably connected to the lower surface of the intermediate placement groove 1. A base strip 3 is fixedly connected to one side surface of the load-bearing block 2. A positioning hole 4 is opened on the surface of the intermediate placement groove 1. A hollow hole 5 is opened on the surface of the intermediate placement groove 1. A first connection frame 6 is attached to the upper surface of the intermediate placement groove 1. A second connection frame 7 is attached to the upper surface of the intermediate placement groove 1. A connection block 8 is attached to the upper surface of the intermediate placement groove 1. A clamping hook 9 is snap-connected to one side surface of the intermediate placement groove 1. A rotating shaft 10 is slidably connected to one side surface of the clamping hook 9. A spring 11 is fixedly connected to one side surface of the clamping hook 9. A fixed block 12 is fixedly connected to one side surface of the spring 11. A positioning plate 13 is fixedly connected to one side surface of the fixed block 12. A positioning pin 14 is slidably connected to one side surface of the positioning plate 13. An upper welding hole plate 15 is bolted to the upper surface of the first connection frame 6. A middle welding hole plate 16 is bolted to the upper surface of the connection block 8. A lower welding hole plate 17 is bolted to the upper surface of the second connection frame 7. Through the setting of the above mechanism, when in use, first place the PCB board in the intermediate placement groove 1. At this time, the base strip 3 and the load-bearing block 2 provide stable support for it. Then, the clamping hook 9 rotates around the rotating shaft 10 under the action of the spring 11 and clamps the intermediate placement groove 1 to initially fix its horizontal position. Subsequently, the positioning pin 14 on the positioning plate 13 accurately inserts into the corresponding positioning hole of the PCB board or contacts a specific position to complete precise planar positioning. At the same time, the positioning hole 4 of the intermediate placement groove 1 cooperates with an external positioning device to further determine its overall position. After that, the first connection frame 6, the second connection frame 7, and the connection block 8 are tightly fixed to the intermediate placement groove 1 by bolts to form a stable frame structure. Finally, the upper welding hole plate 15, the middle welding hole plate 16, and the lower welding hole plate 17 are connected to the corresponding frames by bolts according to the welding requirements of the PCB board, so that the welding head of the welding equipment can perform high-precision welding operations on the electronic components on the PCB board. This positioning structure combines multiple positioning methods and can effectively prevent the PCB board from shifting during the welding process, ensuring that the electronic components can be accurately welded to the corresponding pad positions.
[0022] Further, eight groups of base strips 3 are equidistantly arranged on the lower surface of the middle placement groove 1. Nine groups of equally spaced protruding blocks protrude above the base strip 3 and are bolted to the middle placement groove 1. The bearing blocks 2 are arranged between the nine groups of protruding blocks above the base strip 3, with a total of eight groups. Through the arrangement of the base strip 3 and the bearing blocks 2, during use, this evenly distributed method can reasonably distribute the weight borne by the middle placement groove 1, avoid the situation of excessive local pressure, and ensure the stability of the PCB board.
[0023] Further, the positioning holes 4 are circular, and nine groups are equidistantly opened on the surface of the middle placement groove 1, with sixteen holes in each group. The hollow holes 5 are convex-shaped, and eight groups are equidistantly opened on the surface of the middle placement groove 1, with eight holes in each group. Through the arrangement of the positioning holes 4 and the hollow holes 5, during use, the PCB board can be accurately positioned, ensuring its position accuracy in the middle placement groove 1, providing a basis for subsequent high-precision welding. Moreover, the hollow holes 5 can effectively reduce the weight of the middle placement groove 1, and from the perspective of cost, it reduces the consumption of raw materials and lowers the production cost.
[0024] Further, the first connecting frame 6, the second connecting frame 7, and the connecting block 8 are fixedly connected to the middle placement groove 1 by bolts, and the fixing block 12 is fixedly connected to the positioning plate 13 by bolts. Through the arrangement of the first connecting frame 6, the second connecting frame 7, and the connecting block 8, during use, a complete frame structure surrounding the middle placement groove 1 is formed. This frame structure can effectively constrain the PCB board from the edge, enhance the stability of the entire positioning structure, and prevent the PCB board from shifting in the horizontal direction.
[0025] Further, the engaging hook 9 forms a rotating structure with the fixing block 12 through the rotating shaft 10 and the spring 11. The first connecting frame 6, the second connecting frame 7, the connecting block 8, and the positioning plate 13 are in the same plane position. Through the arrangement of the engaging hook 9, the rotating shaft 10, the spring 11, and the fixing block 12, during use, the engaging hook 9 can rotate flexibly, and the engaging hook 9 can fixedly connect to the middle placement groove 1 and wrap the PCB board inside.
[0026] Further, two groups of positioning plates 13 are arranged on the upper surface of the middle placement groove 1, and multiple groups of positioning pins 14 are arranged on the upper surface of the positioning plate 13. Through the arrangement of the positioning plate 13 and the positioning pins 14, during use, this double-positioning plate design can position the PCB board from two different positions, effectively avoiding the problems of PCB board tilting or rotating that may occur at a single positioning point, and can more stably and accurately fix the position of the object.
[0027] Furthermore, the upper welding hole plate 15, the middle welding hole plate 16, and the lower welding hole plate 17 are connected to one side surface of the first connection frame 6, the connection block 8, and the second connection frame 7 by bolts. On the upper surface of the upper welding hole plate 15, welding holes are provided at the corresponding positions for PCB board welding. Through the setting of the upper welding hole plate 15, during use, the welding head of the welding equipment can accurately perform welding operations on the electronic components on the PCB board through these welding holes, ensuring the accuracy of the welding position, thereby improving the welding quality.
[0028] Furthermore, two groups of welding holes are provided on the upper surface of the middle welding hole plate 16, and each group of welding holes has twenty-two welding holes. On the upper surface of the lower welding hole plate 17, welding holes are provided at the corresponding positions for PCB board welding. Through the setting of the middle welding hole plate 16 and the lower welding hole plate 17, during use, the middle welding hole plate 16 can meet the welding requirements of various different types of electronic components on the PCB board, comprehensively covering the welding requirements of different areas of the PCB board, ensuring that the welding work of the entire PCB board can be carried out under accurate positioning.
[0029] Working principle: For this positioning structure for PCB board welding, during use, first place the PCB board in the middle placement groove 1. At this time, the base strip 3 and the load-bearing block 2 provide stable support for it. Then, the clamping hook 9 rotates around the rotating shaft 10 under the action of the spring 11 and clamps the middle placement groove 1 to initially fix its horizontal position. Subsequently, the positioning pins 14 on the positioning plate 13 accurately insert into the corresponding positioning holes or contact specific positions of the PCB board to complete precise planar positioning. At the same time, the positioning holes 4 of the middle placement groove 1 cooperate with the external positioning device to further determine its overall position. After that, the first connection frame 6, the second connection frame 7, and the connection block 8 are tightly fixed to the middle placement groove 1 by bolts to form a stable frame structure. Finally, the upper welding hole plate 15, the middle welding hole plate 16, and the lower welding hole plate 17 are connected to the corresponding frames by bolts according to the welding requirements of the PCB board, enabling the welding head of the welding equipment to perform high-precision welding operations on the electronic components on the PCB board. This positioning structure combines multiple positioning methods, which can effectively prevent the PCB board from shifting during the welding process and ensure that the electronic components can be accurately welded to the corresponding pad positions.
[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A positioning structure for PCB board welding, comprising a middle placement groove (1), characterized in that: The lower surface of the middle placement groove (1) is movably connected to a load-bearing block (2), and one side surface of the load-bearing block (2) is fixedly connected to a base strip (3). The surface of the middle placement groove (1) is provided with a positioning hole (4), and the surface of the middle placement groove (1) is provided with a hollow hole (5). The upper surface of the middle placement groove (1) is bonded with a first connecting frame (6), and the upper surface of the middle placement groove (1) is bonded with a second connecting frame (7). The upper surface of the middle placement groove (1) is bonded with a connecting block (8), and one side surface of the middle placement groove (1) is snap-connected with a snap-on hook (9), and the snap-on hook (9) is ) is slidably connected to a rotating shaft (10), one side surface of the locking hook (9) is fixedly connected to a spring (11), one side surface of the spring (11) is fixedly connected to a fixing block (12), one side surface of the fixing block (12) is fixedly connected to a positioning plate (13), one side surface of the positioning plate (13) is slidably connected to a positioning needle (14), the upper surface of the first connecting frame (6) is bolted to an upper welding hole plate (15), the upper surface of the connecting block (8) is bolted to a middle welding hole plate (16), and the upper surface of the second connecting frame (7) is bolted to a lower welding hole plate (17).
2. A PCB welding positioning structure according to claim 1, characterized in that: The base bar (3) is provided with eight groups of equally spaced blocks on the surface below the middle placement groove (1); nine groups of equally spaced protruding blocks protrude from the top of the base bar (3) and are bolted to the middle placement groove (1); the load-bearing blocks (2) are provided between the nine groups of protruding blocks above the base bar (3), for a total of eight groups.
3. A PCB welding positioning structure according to claim 1, characterized in that: The positioning holes (4) are circular, and nine groups are evenly spaced on the surface of the middle placement groove (1), each group having sixteen holes. The hollow holes (5) are convex, and eight groups are evenly spaced on the surface of the middle placement groove (1), and each group having eight holes.
4. A PCB welding positioning structure according to claim 1, characterized in that: The first connecting frame (6), the second connecting frame (7) and the connecting block (8) are fixedly connected to the middle placement groove (1) by means of bolts, and the fixing block (12) is fixedly connected to the positioning plate (13) by means of bolts.
5. The positioning structure for PCB board welding according to claim 1, characterized in that: The engaging hook (9) forms a rotating structure with a fixed block (12) via a rotating shaft (10) and a spring (11); the first connecting frame (6), the second connecting frame (7), the connecting block (8) and the positioning plate (13) are located in the same plane.
6. A positioning structure for PCB board welding according to claim 1, characterized in that: The positioning plate (13) is provided with two groups on the upper surface of the middle placement groove (1), and the positioning needles (14) are provided with multiple groups on the upper surface of the positioning plate (13).
7. A PCB welding positioning structure according to claim 1, characterized in that: The upper welding hole plate (15), the middle welding hole plate (16) and the lower welding hole plate (17) are connected to the first connection frame (6), the connection block (8) and the one side surface of the second connection frame (7) by bolts, and the upper surface of the upper welding hole plate (15) is provided with welding holes at positions corresponding to the welding of the PCB board.
8. The positioning structure for PCB board welding according to claim 1, characterized in that: The upper surface of the middle welding hole plate (16) is provided with two groups of welding holes, and each group of welding holes has twenty-two welding holes. The upper surface of the lower welding hole plate (17) is provided with welding holes at positions corresponding to the welding of the PCB board.