A PCB circuit board welding device

Abstract

The application discloses a PCB line board welding equipment, including: operation box, the operation box is provided with switching piece, the operation box is provided with tin brushing piece; in the application, through the structure of the tin brushing plate, the tin storage box, the linear driver and the like of the tin brushing piece, synchronous accurate tin brushing of multiple groups of PCB line boards can be realized, the tin brushing hole is accurately corresponding to the tin tray of the PCB line board, uniformity of tin paste coating is guaranteed, problems such as virtual welding and continuous tin are avoided, the spring plays a buffering role, the tin brushing plate is prevented from being damaged to the PCB line board, the tin brushing plate can be flexibly replaced, different specifications of products are adapted, the guide block is matched with the guide rod, the tin brushing process is guaranteed to be stable, and tin brushing consistency and stability are improved.

Description

Technical Field

[0001] This invention relates to the field of circuit board welding equipment technology, specifically a PCB circuit board welding equipment. Background Technology

[0002] Printed circuit boards (PCBs) are indispensable basic components in electronic devices. They are mainly used to support and fix various electronic components, and to realize electrical connections and signal transmission between components through conductive lines on the board. PCB soldering is the process of firmly soldering components such as resistors, capacitors, and chips onto corresponding pads on the PCB using solder material. Soldering can achieve both mechanical fixation of components to the circuit board and ensure good circuit conductivity, making it a key process in the assembly of electronic products.

[0003] Existing PCB soldering equipment often struggles to process multiple circuit boards simultaneously during soldering operations, resulting in limited efficiency. The uniformity of solder paste application is difficult to control, leading to soldering-related quality issues. The lack of buffer protection during soldering can easily damage the circuit boards. Furthermore, the equipment is not adaptable to different circuit board specifications, exhibiting weak versatility. Additionally, the poor stability of the soldering process and the difficulty in ensuring consistent solder paste application can negatively impact the overall soldering results. Summary of the Invention

[0004] The purpose of this invention is to address the following issues with existing PCB soldering equipment: it is often difficult to process multiple circuit boards simultaneously during soldering operations, resulting in limited efficiency; the uniformity of solder paste application is difficult to control, leading to soldering-related quality problems; the lack of buffer protection during soldering can easily damage the circuit boards; and the equipment lacks adaptability to different circuit board specifications, exhibiting weak versatility. Furthermore, the poor stability of the soldering process and the difficulty in ensuring consistent solder paste application negatively impact the overall soldering effect. Therefore, this invention provides a PCB soldering device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a PCB circuit board welding device, comprising: an operation box, wherein a switching component is provided inside the operation box, and a solder brushing component is provided inside the operation box; The solder brushing component includes a limiting groove that extends through the inner wall of the operating box. A limiting block is slidably connected in the limiting groove. A mounting plate is fixedly connected to the side end of the limiting block. A spring is fixedly connected to the bottom end of the mounting plate. A second mounting groove is opened at the top of the mounting plate. A through groove is opened at the bottom end of the second mounting groove. A second mounting post is fixedly connected to the bottom end of the second mounting groove. A solder brushing plate is snapped into the second mounting groove. A second mounting hole is opened through the top of the solder brushing plate. A solder brushing hole corresponding to the solder pad of the PCB circuit board to be soldered is opened at the top of the solder brushing plate. A guide block is fixedly connected to the inside of the operation box in the width direction. A guide groove is opened through the side end of the guide block. A guide rod is slidably connected in the guide groove. A connecting plate is fixedly connected to one end of the guide rod. A solder storage box is fixedly connected to the bottom end of the connecting plate. A mounting bracket is fixedly connected to the top of the operation box. A linear driver is fixedly connected to the bottom end of the mounting bracket. A synchronization plate is fixedly connected to the movable end of the linear driver. A push block is fixedly connected to the bottom end of the synchronization plate. A connecting groove is opened through the inner side of the push block. One end of the guide rod passes through the guide groove and extends into the connecting groove. The guide rod is slidably connected to the connecting groove.

[0006] As a further embodiment of the present invention: the switching component includes a PCB board placement platform that abuts against the bottom of the inside of the operation box. The bottom of the placement platform is provided with a sliding groove. A slide rail is fixedly connected to the bottom of the inside of the operation box. The slide rail passes through the sliding groove and is slidably connected to the sliding groove. There are two sets of both the sliding groove and the slide rail, which are symmetrically distributed at the bottom of the placement platform. The internal length of the operation box is three times the width of the placement platform. An avoidance groove is provided at the bottom of the placement platform, and the avoidance groove passes through both sides of the width direction of the placement platform.

[0007] As a further embodiment of the present invention: a heating platform is fixedly connected to the bottom of the operation box, a heating coil is embedded in the heating platform, the width of the heating platform is the same as that of the placement platform, the length and height of the heating platform are the same as those of the clearance groove, and two sets of heating platforms are provided, symmetrically distributed along the length of the operation box, and there is a gap between the two sets of heating platforms that is the same width as one set of heating platforms.

[0008] As a further embodiment of the present invention: the top of the placement platform is provided with a mounting groove, and the bottom of the mounting groove is fixedly connected to a mounting post. There are four sets of mounting posts, symmetrically distributed at the bottom of the mounting groove. A fixing plate is snapped into the mounting groove. The top of the fixing plate is provided with a mounting hole. There are four sets of mounting holes, symmetrically distributed at the top of the fixing plate. Each set of mounting posts is inserted into a set of mounting holes. A limiting post is fixedly connected to the top of the fixing plate. The limiting post is adapted to the preset hole of the PCB circuit board to be soldered. There are multiple sets of limiting posts.

[0009] As a further embodiment of the present invention: the placement platform is provided in two sets, and the two sets of placement platforms are fixedly connected to each other in the width direction. One set of placement platforms is fixedly connected to a fixing ear on one side in the length direction. The fixing ears are provided in two sets and are symmetrically distributed on both sides of the length direction of this set of placement platforms. A hydraulic rod is fixedly connected to the inner side of the operation box. The movable end of the hydraulic rod is fixedly connected to the fixing ear. The hydraulic rod is provided in two sets, and each set of hydraulic rods is fixedly connected to a set of fixing ears. The hydraulic rods can drive the two sets of placement platforms to move along the slide rail in the operation box, so that the two sets of placement platforms alternately move to the gap between the two sets of heating platforms. As a further embodiment of the present invention: six sets of limiting grooves are provided, symmetrically distributed on both sides of the top of the operation box along the width direction, and the limiting grooves are provided in the gap area between the two sets of heating platforms. The limiting block is T-shaped, with one end of the limiting block penetrating through the limiting groove and extending into the interior of the operation box, and flush with the inner wall of the operation box. The width of the mounting plate is the same as the gap between the two sets of heating platforms, and the length of the mounting plate is consistent with the internal width of the operation box. Four sets of springs are provided, symmetrically distributed on both sides of the placement platform along the length direction.

[0010] As a further embodiment of the present invention: the length and width of the through groove are the same as those of the fixed plate, the length and width of the second mounting groove are greater than those of the through groove, the cross-section of the second mounting groove and the through groove are T-shaped, four sets of the second mounting posts are provided, symmetrically distributed at the bottom of the second mounting groove, four sets of the second mounting holes are provided, symmetrically distributed at the top of the soldering plate, each set of mounting posts is inserted into a set of mounting holes, the cross-section of the soldering plate is T-shaped, and multiple sets of soldering holes are provided.

[0011] As a further embodiment of the present invention: two sets of guide blocks are provided, symmetrically distributed inside the operation box, and the two sets of guide blocks are located in the gap area between the two sets of heating platforms. The guide blocks are concave in the area above the solder brushing plate. The solder storage box is provided through at both ends, and the bottom end of the solder storage box abuts against the top end of the solder brushing plate. The length of the solder storage box is the same as the width of the solder brushing plate. The cross-section of the solder storage box is an isosceles trapezoid. The mounting bracket is located at the center of the length direction of the operation box and is perpendicular to the length direction of the operation box. The length of the synchronization plate is the same as the gap between the two sets of guide blocks. The push block is U-shaped, and the connecting groove is U-shaped.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes two sets of placement platforms, hydraulic rods, slide rails, and other structures in the switching components to enable alternating loading, unloading, and soldering of PCB circuit boards, avoiding waiting time for single-set operations and significantly improving equipment efficiency. The limiting posts enable precise positioning of the PCB circuit boards, the fixing plates are flexibly replaceable to adapt to different specifications of PCB circuit boards, and the heating platform and clearance groove work together to achieve uniform preheating of the PCB circuit boards, ensuring soldering quality. The overall structure is reasonably designed, easy to operate, and reduces manual intervention costs. 2. In this invention, the soldering components, including the soldering plate, solder storage box, and linear driver, enable simultaneous and precise soldering of multiple PCB circuit boards. The soldering holes precisely correspond to the solder pads on the PCB circuit boards, ensuring uniform solder paste application and avoiding issues such as cold solder joints and solder bridging. The springs act as a buffer to prevent the soldering plate from damaging the PCB circuit boards. The soldering plate can be flexibly replaced to adapt to different product specifications. The guide blocks and guide rods work together to ensure a smooth soldering process and improve the consistency and stability of soldering. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the switching component in this invention; Figure 3 This is a schematic diagram of the placement platform in this invention; Figure 4 In this invention Figure 3 A schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the mounting plate in this invention; Figure 6 This is a schematic diagram of the tin-brushing plate in this invention; Figure 7 In this invention Figure 6 A schematic diagram of the structure at point B; Figure 8 This is a schematic diagram of the guide block structure in this invention; Figure 9 In this invention Figure 8 A schematic diagram of the C-structure.

[0014] In the diagram: 1. Operation box; 2. Switching component; 21. Placement platform; 22. Slide rail; 23. Sliding groove; 24. Clearance groove; 25. Heating platform; 26. Mounting slot one; 27. Mounting post one; 28. Fixing plate; 29. ​​Mounting hole one; 210. Limiting post; 211. Fixing ear; 212. Hydraulic rod; 3. Soldering component; 31. Limiting groove; 32. Limiting block; 33. Mounting plate; 34. Spring; 35. Mounting slot two; 36. Through groove; 37. Mounting post two; 38. Soldering plate; 39. Mounting hole two; 310. Soldering hole; 311. Guide block; 312. Guide rod; 313. Connecting plate; 314. Solder storage box; 315. Push block; 316. Synchronization plate; 317. Mounting bracket; 318. Linear actuator. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0017] Reference Figure 1 In this embodiment of the invention, a PCB circuit board welding device includes: an operation box 1, a switching component 2 and a solder brushing component 3 disposed inside the operation box 1.

[0018] Reference Figures 2 to 4The switching component 2 includes a PCB board placement platform 21 that abuts against the bottom of the inside of the operation box 1. A sliding groove 23 is provided at the bottom of the placement platform 21. A slide rail 22 is fixedly connected to the bottom of the inside of the operation box 1, passing through the sliding groove 23 and slidably connected to it. Two sets of both the sliding groove 23 and the slide rail 22 are provided, symmetrically distributed at the bottom of the placement platform 21. The internal length of the operation box 1 is three times the width of the placement platform 21. A clearance groove 24 is provided at the bottom of the placement platform 21, extending through both sides of the width direction of the placement platform 21. A heating platform 25 is fixedly connected to the bottom of the inside of the operation box 1 for heating. A heating coil is embedded in the heating platform 25. The width of the heating platform 25 is the same as that of the placement platform 21. The length and height of the heating platform 25 are the same as those of the clearance groove 24. Two sets of heating platforms 25 are provided, symmetrically distributed along the length of the operation box 1. There is a gap between the two sets of heating platforms 25 with the same width as one set of heating platforms 25. The top of the placement platform 21 has a mounting groove 26. The bottom of the mounting groove 26 is fixedly connected to a mounting post 27. Four sets of mounting posts 27 are provided, symmetrically distributed at the bottom of the mounting groove 26. A fixing plate 28 is snapped into the mounting groove 26. The top of the fixing plate 28 has a through opening. Mounting holes 29 are provided in four sets, symmetrically distributed at the top of the fixing plate 28. Each set of mounting posts 27 is inserted into one set of mounting holes 29. Limiting posts 210 are fixedly connected to the top of the fixing plate 28. The limiting posts 210 are adapted to the preset holes of the PCB circuit boards to be soldered. There are multiple sets of limiting posts 210, so that multiple PCB circuit boards can be evenly fixed at the top of the fixing plate 28. The upper limit posts 210 can be replaced with fixing plates 28 adapted to different specifications of PCB circuit boards. There are two sets of placement platforms 21, and the width of the two sets of placement platforms 21 is equal. On the opposite side, a fixed lug 211 is fixedly connected to one side of a set of placement platforms 21 along its length. Two sets of fixed lugs 211 are provided, symmetrically distributed on both sides of the length of this set of placement platforms 21. A hydraulic rod 212 is fixedly connected to the inner side of the operation box 1. The movable end of the hydraulic rod 212 is fixedly connected to the fixed lug 211. Two sets of hydraulic rods 212 are provided, and each set of hydraulic rods 212 is fixedly connected to a set of fixed lugs 211. The hydraulic rods 212 can drive the two sets of placement platforms 21 to move along the slide rail 22 within the operation box 1, so that the two sets of placement platforms 21 can move alternately to the gap between the two sets of heating platforms 25.

[0019] The above solution utilizes the following components in the switching component 2: PCB board placement platform 21, slide rail 22, sliding groove 23, heating platform 25, mounting groove 26, mounting post 27, fixing plate 28, mounting hole 29, limiting post 210, fixing ear 211, and hydraulic rod 212. This allows for the stable fixing and alternating operation of multiple PCB boards, adapting to different PCB board specifications. Furthermore, the heating platform 25 preheats the board, ensuring the subsequent soldering temperature meets standards. The hydraulic rod 212 drives the board smoothly, ensuring precise movement of the placement platform 21 and improving equipment efficiency and adaptability.

[0020] Reference Figures 5 to 9The soldering component 3 includes a limiting groove 31 extending through the inner wall of the operation box 1. Six sets of limiting grooves 31 are symmetrically distributed on both sides of the top of the operation box 1 along its width direction. The limiting grooves 31 are located in the gap area between two sets of heating platforms 25. A limiting block 32 is slidably connected within the limiting groove 31. The limiting block 32 is T-shaped, with one end extending through the limiting groove 31 and into the interior of the operation box 1, flush with the inner wall. A mounting plate 33 is fixedly connected to the side end of the limiting block 32. The width of the mounting plate 33 is the same as the gap between the two sets of heating platforms 25, and the length of the mounting plate 33 is the same as the internal width of the operation box 1. Four springs 34 are fixedly connected to the bottom end of the mounting plate 33, symmetrically distributed along the length direction of the placement platform 21. On both sides, in the initial state, the spring 34 extends and lifts the mounting plate 33, creating a gap between the bottom of the mounting plate 33 and the top of the placement platform 21. The top of the mounting plate 33 has a second mounting groove 35, and the bottom of the second mounting groove 35 has a through groove 36. The length and width of the through groove 36 are the same as the fixed plate 28, while the length and width of the second mounting groove 35 are greater than the through groove 36. The cross-section of the second mounting groove 35 and the through groove 36 is T-shaped. The bottom of the second mounting groove 35 is fixedly connected to a second mounting post 37. Four sets of the second mounting posts 37 are symmetrically distributed at the bottom of the second mounting groove 35. A soldering plate 38 is snapped into the second mounting groove 35. The top of the soldering plate 38 has a through mounting hole 39, and four sets of the second mounting holes 39 are symmetrically distributed at the top of the soldering plate 38. Each set is used for mounting... Column 1 27 is inserted into a set of mounting holes 29. The solder brush plate 38 has a T-shaped cross-section. When the solder brush plate 38 is placed into the mounting slot 35, the top of the solder brush plate 38 is flush with the top of the mounting plate 33. The bottom of the solder brush plate 38 passes through the through slot 36 and is flush with the bottom of the mounting plate 33. The top of the solder brush plate 38 has solder brushing holes 310 corresponding to the solder pads of the PCB circuit board to be soldered. There are multiple sets of solder brushing holes 310, which can be used to solder multiple sets of PCB circuit boards. The solder brush plate 38 with solder brushing holes 310 can be replaced with one that is compatible with the PCB circuit board of different specifications. Guide blocks 311 are fixedly connected in the width direction inside the operation box 1. There are two sets of guide blocks 311, which are symmetrically distributed inside the operation box 1. 11 is located in the gap area between the two sets of heating platforms 25. The guide block 311 is recessed above the solder brushing plate 38. Each set of guide blocks 311 has a guide groove extending through its side. A guide rod 312 is slidably connected in the guide groove. A connecting plate 313 is fixedly connected to the end face of the guide rod 312 away from the solder brushing plate 38. A solder storage box 314 is fixedly connected to the bottom end of the connecting plate 313. The solder storage box 314 is extended through its upper and lower ends, and its bottom end abuts against the top end of the solder brushing plate 38. The length of the solder storage box 314 is the same as the width of the solder brushing plate 38. The cross-section of the solder storage box 314 is an isosceles trapezoid. An n-shaped mounting bracket 317 is fixedly connected to the top of the operation box 1. The mounting bracket 317 is located at the center of the length direction of the operation box 1 and is perpendicular to the length direction of the operation box 1.A linear actuator 318 is fixedly connected to the bottom of the mounting bracket 317. The linear actuator 318 utilizes existing technology and is a common mechanical device used to convert rotary motion into linear motion. Its key components include a motor, lead screw, nut, guide rail, and slider. Its core working principle involves the motor driving the lead screw to rotate, causing the nut on the lead screw to move axially along the lead screw during rotation, thus converting rotary motion into linear motion. The nut is connected to the slider, which slides along the guide rail, pushing the load to achieve linear motion. A synchronization plate 316 is fixedly connected to the movable end of the linear actuator 318. The length of the synchronization plate 316 matches the gap between the two sets of guide blocks 311. A push block 315, which is U-shaped, is fixedly connected to the bottom of the synchronization plate 316. A U-shaped connecting groove is provided through the inner side. One end of the guide rod 312 passes through the guide groove and extends into the connecting groove. The guide rod 312 is slidably connected to the connecting groove. When the linear actuator 318 drives the synchronous plate 316 to move, the guide rod 312 moves within the guide groove. When it moves to the recessed area, the guide rod 312 pushes the connecting plate 313, causing the solder storage box 314 to push the solder brush plate 38 downward, and causing the spring 34 to contract under force until the bottom end of the solder brush plate 38 abuts against the top of the PCB circuit board at the top of the fixing plate 28. As the movement continues, the solder storage box 314 moves synchronously. The solder paste in the solder storage box 314 is pushed by the inclined surface of the solder storage box 314 and scraped through the solder brush hole 310 onto the solder tray on the PCB circuit board at the top of the fixing plate 28.

[0021] The above solution utilizes the following components in the solder brushing component 3: limiting groove 31, limiting block 32, mounting plate 33, spring 34, mounting groove 2 35, through groove 36, mounting post 2 37, solder brushing plate 38, mounting hole 2 39, solder brushing hole 310, guide block 311, guide rod 312, connecting plate 313, solder storage box 314, push block 315, synchronization plate 316, mounting bracket 317, and linear driver 318. These components ensure uniform solder paste application. The solder brushing plate 38 can be flexibly replaced to adapt to different PCB specifications. The spring 34 provides buffer protection, preventing the solder brushing plate 38 from damaging the PCB. The linear driver 318 provides precise drive, and the guide block 311 and guide rod 312 work together to ensure smooth movement, significantly improving solder brushing accuracy and consistency.

[0022] The working principle of this invention is as follows: Before the equipment is put into operation, preliminary preparations are made. According to the specifications of the PCB circuit board to be soldered, a suitable fixing plate 28 and a soldering plate 38 are selected. The fixing plate 28 is inserted into the mounting slot 26 of the placement platform 21 through the mounting hole 29 and the mounting post 27, ensuring that the fixing plate 28 is firmly installed. Then, the soldering plate 38 is inserted into the mounting slot 35 of the mounting plate 33 through the mounting hole 39 and the mounting post 37, so that the bottom end of the soldering plate 38 passes through the through slot 36 and is flush with the bottom end of the mounting plate 33. At the same time, the soldering hole 310 on the soldering plate 38 corresponds to the position of the solder pad of the PCB circuit board to be soldered. Subsequently, multiple sets of PCB circuit boards to be soldered are placed on the two placement platforms respectively. On the fixing plate 28 of the platform 21, the limiting post 210 at the top of the fixing plate 28 is matched with the preset hole of the PCB circuit board to achieve precise positioning and fixation of the PCB circuit board, preventing displacement during subsequent operations. After the preparation work is completed, the equipment is started. First, the hydraulic rod 212 is controlled to run. The hydraulic rod 212 drives the two sets of placement platforms 21 to move along the slide rail 22 in the operating box 1 through the fixing ear 211. Since the internal length of the operating box 1 is three times the width of the placement platform 21, and there is a gap between the two sets of heating platforms 25 with the same width as one set of heating platforms 25, the hydraulic rod 212 drives the two sets of placement platforms 21 to move, so that one set of placement platforms 21 moves precisely to the gap between the two sets of heating platforms 25. Then, the linear actuator 318 is started, and the linear... The driver 318 drives the synchronization plate 316 to move along the width of the operating box 1. The synchronization plate 316 drives the push block 315 at the bottom to move synchronously. The push block 315 drives the guide rod 312 to slide in the guide groove of the guide block 311 through the U-shaped connecting groove on the inner side. When the guide rod 312 moves to the concave area of ​​the guide block 311, the guide rod 312 moves downward under the pushing action of gravity and the push block 315, thereby pushing the connecting plate 313 to move downward. The connecting plate 313 drives the solder storage box 314 at the bottom to move downward synchronously. The solder storage box 314 pushes the solder brushing plate 38 to move downward. At this time, the spring 34 at the bottom of the mounting plate 33 is compressed by force. The mounting plate 33 slides in the limiting groove 31 through the limiting block 32 to ensure that the solder brushing plate 38 moves downward smoothly until the solder brushing plate... The bottom end of the 38 is in close contact with the top end of the PCB circuit board on the top of the fixed plate 28. As the linear driver 318 continuously drives the synchronous plate 316 to move, the guide rod 312 continues to slide in the guide groove. The solder reservoir 314 moves synchronously with the guide rod 312. Since the cross-section of the solder reservoir 314 is an isosceles trapezoid and the top and bottom ends are connected, the solder paste in the solder reservoir 314 flows evenly into the solder brushing hole 310 of the solder brushing plate 38 under the push of the inclined surface of the solder reservoir 314. Then, it is accurately scraped onto the solder pad of the PCB circuit board through the solder brushing hole 310, realizing the synchronous solder brushing of multiple PCB circuit boards. During the solder brushing process, the T-shaped structure of the solder brushing plate 38 cooperates with the T-shaped cross-section of the mounting groove 35 and the through groove 36 to prevent the solder brushing plate 38 from shifting and ensure the solder brushing accuracy.Until the linear actuator 318 drives the synchronization board 316 and moves the guide rod 312 with the push block 315 to the non-recessed area of ​​the guide block 311, the spring 34 is no longer under force, extends and resets, and pushes the mounting plate 33 upward. The mounting plate 33 drives the soldering plate 38, solder storage box 314 and other structures to move upward synchronously, returning to the initial state. The soldering plate 38 separates from the PCB circuit board. Subsequently, the hydraulic rod 212 drives the two sets of placement stages 21 to move along the slide rail 22 again, moving the soldering completed placement stage 21 above one of the heating stages 25. The corresponding components are then placed on the circuit board, and the solder paste is melted by continuous heating on the heating platform 25, thus soldering the electronic components to the PCB circuit board. Simultaneously, another set of placement platforms 21 moves to the gap between the two heating platforms 25, repeating the soldering process. This cycle is repeated to achieve continuous and efficient soldering of the PCB circuit board. Throughout the process, the fixing plate 28 and the soldering plate 38 can be flexibly replaced according to different PCB circuit board specifications, improving the equipment's adaptability. The precise coordination of each structure ensures soldering quality and operational efficiency. Through the two sets of placement platforms 21, hydraulic rods 212, and slide rails 22 of the switching component 2, alternating loading, unloading, and soldering of PCB circuit boards can be achieved, avoiding waiting time for single-set operations and significantly improving equipment efficiency. The limiting post 210 enables precise positioning of the PCB circuit board, and the fixing plate 28 can be flexibly replaced to adapt to different PCB circuit board specifications. The heating platform 25 and the clearance groove 24 work together to achieve uniform preheating of the PCB circuit board, ensuring soldering quality. The overall structural design is reasonable, operation is convenient, and reduces manual labor. To reduce intervention costs, the soldering component 3, with its soldering plate 38, solder reservoir 314, and linear driver 318, enables simultaneous and precise soldering of multiple PCB circuit boards. The soldering holes 310 precisely align with the solder pads on the PCB circuit boards, ensuring uniform solder paste application and preventing issues such as cold solder joints and solder bridging. The spring 34 acts as a buffer, preventing the soldering plate 38 from damaging the PCB circuit boards. The soldering plate 38 is replaceable to adapt to different product specifications. The guide block 311 and guide rod 312 work together to ensure a smooth soldering process, improving consistency and stability.

[0023] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A PCB circuit board welding device, comprising: The operation box (1) is characterized in that a switching component (2) is provided inside the operation box (1), and a soldering component (3) is provided inside the operation box (1). The solder brushing component (3) includes a limiting groove (31) that passes through the inner wall of the operating box (1). A limiting block (32) is slidably connected in the limiting groove (31). A mounting plate (33) is fixedly connected to the side end of the limiting block (32). A spring (34) is fixedly connected to the bottom end of the mounting plate (33). A second mounting groove (35) is opened at the top end of the mounting plate (33). A through groove (36) is opened at the bottom end of the second mounting groove (35). A second mounting post (37) is fixedly connected to the bottom end of the second mounting groove (35). A solder brushing plate (38) is snapped into the second mounting groove (35). A second mounting hole (39) is opened through the top end of the solder brushing plate (38). A solder brushing hole (310) corresponding to the solder pad of the PCB circuit board to be soldered is opened at the top end of the solder brushing plate (38). The operation box (1) is fixedly connected to a guide block (311) in the width direction. A guide groove is opened through the side end of the guide block (311). A guide rod (312) is slidably connected in the guide groove. A connecting plate (313) is fixedly connected to one end of the guide rod (312). A tin storage box (314) is fixedly connected to the bottom end of the connecting plate (313). A mounting bracket (317) is fixedly connected to the top of the operation box (1). A linear driver (318) is fixedly connected to the bottom end of the mounting bracket (317). A synchronization plate (316) is fixedly connected to the movable end of the linear driver (318). A push block (315) is fixedly connected to the bottom end of the synchronization plate (316). A connecting groove is opened through the inner side of the push block (315). One end of the guide rod (312) passes through the guide groove and extends into the connecting groove. The guide rod (312) is slidably connected to the connecting groove.

2. The PCB circuit board welding equipment according to claim 1, characterized in that, The switching component (2) includes a PCB board placement platform (21) that abuts against the bottom of the inside of the operation box (1). The bottom of the placement platform (21) is provided with a sliding groove (23). The bottom of the inside of the operation box (1) is fixedly connected with a slide rail (22). The slide rail (22) passes through the sliding groove (23) and is slidably connected to the sliding groove (23). There are two sets of both the sliding groove (23) and the slide rail (22), which are symmetrically distributed at the bottom of the placement platform (21). The internal length of the operation box (1) is three times the width of the placement platform (21). The bottom of the placement platform (21) is provided with a clearance groove (24), and the clearance groove (24) passes through both sides of the width direction of the placement platform (21).

3. The PCB circuit board welding equipment according to claim 2, characterized in that, The bottom of the operation box (1) is fixedly connected to a heating platform (25). The heating platform (25) is embedded with a heating coil. The width of the heating platform (25) is the same as that of the placement platform (21). The length and height of the heating platform (25) are the same as those of the clearance groove (24). There are two sets of heating platforms (25), which are symmetrically distributed along the length of the operation box (1). There is a gap between the two sets of heating platforms (25) that is the same width as one set of heating platforms (25).

4. The PCB circuit board welding equipment according to claim 3, characterized in that, The top of the placement platform (21) is provided with an installation groove (26). The bottom of the installation groove (26) is fixedly connected to an installation post (27). There are four sets of installation posts (27), which are symmetrically distributed at the bottom of the installation groove (26). A fixing plate (28) is snapped into the installation groove (26). The top of the fixing plate (28) is provided with an installation hole (29). There are four sets of installation holes (29), which are symmetrically distributed at the top of the fixing plate (28). Each set of installation posts (27) is inserted into a set of installation holes (29). The top of the fixing plate (28) is fixedly connected to a limiting post (210). The limiting post (210) is adapted to the preset hole of the PCB circuit board to be soldered. There are multiple sets of limiting posts (210).

5. The PCB circuit board welding equipment according to claim 4, characterized in that, The placement platform (21) is provided in two sets. The two sets of placement platforms (21) are fixedly connected to each other in the width direction. One set of placement platforms (21) is fixedly connected to a fixed ear (211) on one side in the length direction. The fixed ear (211) is provided in two sets and is symmetrically distributed on both sides of the length direction of this set of placement platforms (21). The hydraulic rod (212) is fixedly connected to the inner side of the operation box (1). The movable end of the hydraulic rod (212) is fixedly connected to the fixed ear (211). The hydraulic rod (212) is provided in two sets. Each set of hydraulic rod (212) is fixedly connected to a set of fixed ears (211). The two sets of placement platforms (21) can be driven to move along the slide rail (22) in the operation box (1) through the hydraulic rod (212), so that the two sets of placement platforms (21) can move alternately to the gap between the two sets of heating platforms (25).

6. The PCB circuit board welding equipment according to claim 5, characterized in that, The limiting groove (31) is provided in six sets, symmetrically distributed on both sides of the top of the operation box (1) along the width direction, and the limiting groove (31) is provided in the gap area between the two sets of heating platforms (25). The limiting block (32) is T-shaped, and one end of the limiting block (32) passes through the limiting groove (31) and extends into the inside of the operation box (1), and is flush with the inner wall of the operation box (1). The width of the mounting plate (33) is the same as the gap between the two sets of heating platforms (25), and the length of the mounting plate (33) is the same as the internal width of the operation box (1). The spring (34) is provided in four sets, symmetrically distributed on both sides of the length direction of the placement platform (21).

7. A PCB circuit board welding equipment according to claim 6, characterized in that, The length and width of the through groove (36) are the same as those of the fixed plate (28). The length and width of the second mounting groove (35) are greater than those of the through groove (36). The cross-section of the second mounting groove (35) and the through groove (36) is T-shaped. There are four sets of second mounting posts (37), which are symmetrically distributed at the bottom of the second mounting groove (35). There are four sets of second mounting holes (39), which are symmetrically distributed at the top of the tin-brushing plate (38). Each set of first mounting posts (27) is inserted into a set of first mounting holes (29). The cross-section of the tin-brushing plate (38) is T-shaped. There are multiple sets of tin-brushing holes (310).

8. A PCB circuit board welding equipment according to claim 7, characterized in that, Two sets of guide blocks (311) are symmetrically distributed inside the operation box (1), and the two sets of guide blocks (311) are located in the gap area between the two sets of heating tables (25). The guide blocks (311) are recessed in the area above the solder brush plate (38). The solder storage box (314) is connected at both ends, and the bottom end of the solder storage box (314) abuts against the top end of the solder brush plate (38). The length of the solder storage box (314) is the same as the width of the solder brush plate (38). The cross section of the solder storage box (314) is an isosceles trapezoid. The mounting bracket (317) is located at the center of the length direction of the operation box (1) and is perpendicular to the length direction of the operation box (1). The length of the synchronization plate (316) is the same as the gap between the two sets of guide blocks (311). The push block (315) is U-shaped, and the connecting groove is U-shaped.

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