Welding equipment for producing single-sided PCB (printed circuit board)
By designing welding stabilization and adjustment components, the problem of edge warping caused by uneven heating during circuit board welding was solved, improving welding quality and mechanical strength, and ensuring the stability of electrofusion connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANZHOU LIANGSHI TECHNOLOGY CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-17
AI Technical Summary
When soldering two circuit boards, the temperature at the solder joint rises rapidly, causing uneven heating, which can lead to slight warping of the boards, potential misalignment, and failure of the electrofusion connection. This results in insufficient mechanical strength and affects the quality of the finished soldered product.
The welding stabilization and adjustment components are adopted. The first servo motor drives the rotating screw and slider to move the hot soldering iron. Combined with the support rod and pressure roller, the weld seam is pressed to ensure that the welding area is at the optimal height. The stability of the clamping block is increased by the triangular support plate to prevent warping.
It effectively reduces the possibility of circuit board warping due to localized heating, improves welding quality and mechanical strength, and ensures the stability of electrofusion connection and the quality of finished products.
Smart Images
Figure CN224128794U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circuit board welding technology, and relates to a welding equipment for the production of single-sided PCB circuit boards. Background Technology
[0002] Circuit board soldering is a process of fixing electronic components onto a circuit board and achieving a reliable electrical connection by heating solder to melt it. Depending on the soldering method, it can be divided into manual soldering, reflow soldering, wave soldering, etc. The appropriate soldering method should be selected according to the application scenario.
[0003] The following technical problems were found in the existing technology: When soldering two circuit boards, the temperature at the solder joint of the circuit board will rise rapidly. At this time, the circuit board will slightly warp due to uneven heating. If soldering continues, the two boards will shift, which may lead to electrofusion connection failure and insufficient mechanical strength, thus affecting the quality of the soldered product. Utility Model Content
[0004] The technical problem this invention aims to solve is that when soldering two circuit boards, the temperature at the solder joint of the circuit board will rise rapidly. At this time, the circuit board may slightly warp due to uneven heating. If soldering continues, the two boards will shift, which may lead to electrofusion connection failure and insufficient mechanical strength, thus affecting the quality of the finished soldered product.
[0005] The present invention relates to a welding equipment for producing single-sided PCBs, comprising a base; a sliding groove is provided on the top outer side of the base.
[0006] A welding sliding assembly is disposed inside the sliding groove; its interior includes a welding stabilizing mechanism.
[0007] The adjustment component is located at the bottom inside the base; it includes a rolling pressing mechanism inside.
[0008] The welding sliding assembly includes a first servo motor; the first servo motor is located on one side of the top of the base; a first rotating screw is rotatably connected inside the sliding groove; one end of the first rotating screw is fixedly connected to the output end of the first servo motor; a shaped slider is threadedly connected to the outside of the first rotating screw; the shaped slider slides inside the sliding groove; a take-up shaft is fixedly connected to the top of the shaped slider; a flux feeding device body is installed on the top of the shaped slider; a welding wire is installed on the outside of the take-up shaft; the welding wire passes through the shaped slider; a through-tube is installed at the output end of the flux feeding device body; the through-tube passes through the shaped slider; a wire feeding device body is installed at the bottom of the shaped slider; a through-tube passes through the inside of the wire feeding device body; the end of the through-tube away from the flux feeding device body is connected to the wire feeding device body; a hot soldering iron body is installed on one side of the shaped slider.
[0009] The adjustment assembly includes a second servo motor; a second rotating screw is fixedly connected to the output end of the second servo motor; the second rotating screw rotates inside the base; a synchronous belt is rotatably connected to the bottom outer side of the second rotating screw; a clamping block is threadedly connected to the outer side of the second rotating screw; the clamping block slides inside the base; and multiple sets of telescopic rods are installed inside the clamping block.
[0010] The welding stabilizing mechanism includes a spring shaft; the spring shaft is located on both sides of the outer side of the irregularly shaped slider; a support rod is hinged to the outer side of the spring shaft; and a pressure roller is rotatably connected to the end of the support rod.
[0011] The rolling pressing mechanism includes a spring limiting block; the spring limiting block slides inside the clamping block; and a rotating wheel is rotatably connected to the bottom of the spring limiting block.
[0012] A triangular support plate is installed at the bottom of the clamping block.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the welding stabilizing component and the adjusting component, the welding area is at the optimal welding height when welding two circuit boards. Then, during the welding process, the irregularly shaped slider moves continuously to drive the hot soldering iron body to start welding. The support rod provides auxiliary pressure at the weld joint, which reduces the impact of the circuit board warping due to local heating on the welding effect, reduces the failure of electrofusion connection and the failure of mechanical strength, and improves the quality of the welded product.
[0014] By using a triangular support plate, an inverted triangular shape is formed at the bottom of the clamping block. When the clamping block is compressed, the end of the clamping block is more likely to bend and deform. The triangular support plate increases the stability and bending resistance of the synchronous belt, so that the clamping block can provide better support and stability during the circuit board soldering process. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a structural schematic diagram of the base of this utility model.
[0017] Figure 2 This is a schematic diagram of the sliding groove of this utility model.
[0018] Figure 3 This is a schematic diagram of the first rotating lead screw of this utility model.
[0019] Figure 4 This is a schematic diagram of the irregularly shaped slider of this utility model.
[0020] Figure 5 This is a schematic diagram of the structure of the spring limiting block of this utility model.
[0021] In the diagram: 1. Base; 11. Sliding groove; 2. First servo motor; 21. First rotating lead screw; 22. Irregularly shaped slider; 23. Rewinding shaft; 24. Flux feeding device body; 25. Welding wire; 26. Through pipe; 27. Hot soldering iron body; 28. Wire feeding device body; 3. Second servo motor; 31. Second rotating lead screw; 32. Synchronous belt; 33. Clamping block; 34. Telescopic rod; 4. Spring shaft; 41. Support rod; 42. Pressure roller; 5. Spring limit block; 51. Rotating wheel; 6. Triangular support plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Example
[0026] like Figure 1 - Figure 5 As shown, a welding equipment for producing single-sided PCB circuit boards includes a base 1; a sliding groove 11 is provided on the top outer side of the base 1.
[0027] A welding sliding assembly is disposed inside the sliding groove 11; its interior includes a welding stabilizing mechanism.
[0028] An adjustment assembly is located at the bottom inner side of the base 1; it includes a rolling pressing mechanism. The welding sliding assembly includes a first servo motor 2; the first servo motor 2 is located on one side of the top of the base 1; a first rotating screw 21 is rotatably connected inside the sliding groove 11; one end of the first rotating screw 21 is fixedly connected to the output end of the first servo motor 2; a shaped slider 22 is threadedly connected to the outer side of the first rotating screw 21; the shaped slider 22 slides inside the sliding groove 11; a take-up shaft is fixedly connected to the top of the shaped slider 22. 23; A flux feeding device body 24 is installed on the top of the irregularly shaped slider 22; a welding wire 25 is installed on the outside of the take-up shaft 23; the welding wire 25 passes through the irregularly shaped slider 22; a through pipe 26 is installed at the output end of the flux feeding device body 24; the through pipe 26 passes through the irregularly shaped slider 22; a wire feeding device body 28 is installed at the bottom of the irregularly shaped slider 22; a through pipe 26 passes through the inside of the wire feeding device body 28; the end of the through pipe 26 away from the flux feeding device body 24 is connected to the wire feeding device body 28; the irregularly shaped slider A hot soldering iron body 27 is installed on one side of the outer side of block 22. The adjustment component includes a second servo motor 3. The output end of the second servo motor 3 is fixedly connected to a second rotating screw 31. The second rotating screw 31 rotates inside the base 1. A synchronous belt 32 is rotatably connected to the bottom outer side of the second rotating screw 31. A clamping block 33 is threadedly connected to the outer side of the second rotating screw 31. The clamping block 33 slides inside the base 1. Multiple sets of telescopic rods 34 are installed inside the clamping block 33. The welding stabilizing mechanism includes a spring shaft 4. The spring shaft 4 is located on both sides of the outer side of the irregular slider 22; a support rod 41 is hinged to the outer side of the spring shaft 4; a pressure roller 42 is rotatably connected to the end of the support rod 41; the rolling pressing mechanism includes a spring limiting block 5; the spring limiting block 5 slides inside the clamping block 33; a rotating wheel 51 is rotatably connected to the bottom of the spring limiting block 5. When the circuit board is at the bottom of the spring limiting block 5, the rotating wheel 51 will rotate with the movement of the circuit board as the circuit board moves, thus maintaining the stability of the circuit board and reducing the possibility of scratching the circuit.
[0029] During operation, the second servo motor 3 is first driven to rotate the second rotating lead screw 31 inside the base 1. The two sets of second rotating lead screws 31 inside the base 1 are connected by a synchronous belt 32 to achieve synchronous rotation, adjusting the height of the two sets of clamping blocks 33. Then, one circuit board is installed at the bottom of the telescopic rod 34 on top of the clamping block 33, and the telescopic rod 34 is driven to press the circuit board. Then, the other circuit board is installed above the other set of clamping blocks 33. At this time, the circuit board will squeeze the rotating wheel 51 and the spring limit block 5, and the spring limit block 5 will rise. While rising, it provides a reaction force to the circuit board, squeezing and limiting the circuit board. At the same time, an external force is applied. Under pressure, the circuit board can be adjusted in front and back position on the surface of the clamping block 33, making the splicing and alignment of the two circuit boards more convenient and accurate. After the circuit board is fixed, the first servo motor 2 drives the first rotating screw 21 to rotate inside the sliding groove 11 to continuously adjust the position of the irregular slider 22. At the same time, the solder wire 25 wound on the outside of the take-up shaft 23 is pulled by the wire feeding device body 28 and continuously passes through the irregular slider 22, approaching the hot soldering iron body 27. Then, the flux feeding device body 24 pumps the flux into the through pipe 26, and then enters the wire feeding device body 28 through the through pipe 26, comes into contact with the solder wire 25 and is discharged from the wire feeding device body. The body 28, heated by the hot soldering iron body 27, begins to melt and solders the connection between two circuit boards. During the soldering process, the irregularly shaped slider 22 approaches the circuit board, and the pressure roller 42, squeezed by the circuit board, moves around the spring shaft 4 along with the support rod 41. Simultaneously, the reaction force provided by the spring shaft 4 causes the pressure roller 42 to press against the solder joint. The pressure roller 42 is made of Teflon, which has a low coefficient of friction, high temperature resistance, and inherent chemical inertness, making it less likely to react with chemicals in the flux. Its low coefficient of friction also minimizes damage to the solder joint surface. Therefore, the pressure roller 42 provides auxiliary pressing during the soldering of the circuit board. Simultaneously, the main body 28 of the wire feeding device pulls the welding wire 25, and with the help of the tube 26, the use of welding wire 25 and flux is more stable. The automatic feeding further improves the welding quality. By using the welding stabilization component and the adjustment component, the welding area is at the optimal welding height when welding two circuit boards. Then, during the welding process, the irregular slider 22 moves continuously to drive the hot soldering iron body 27 to start welding. The support rod 41 provides auxiliary pressing at the front and back of the weld, reducing the impact of the circuit board warping due to local heating on the welding effect, reducing the failure of electrofusion connection and the failure of mechanical strength, and improving the quality of the welded product. Example
[0030] like Figure 1 - Figure 2As shown, a triangular support plate 6 is installed at the bottom of the clamping block 33.
[0031] During operation, the use of the triangular support plate 6 forms an inverted triangular shape at the bottom of the clamping block 33. When the clamping block 33 is squeezed, the end of the clamping block 33 is more likely to bend and deform. The triangular support plate 6 increases the stability and bending resistance of the synchronous belt 32, so that the clamping block 33 can provide better support and stability during the circuit board soldering process.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A soldering apparatus for the production of a single-sided PCB circuit board, characterized in that: Includes a base (1); a sliding groove (11) is provided on the top outer side of the base (1); The welding sliding assembly is located inside the sliding groove (11); its interior includes a welding stabilizing mechanism. Adjustment component, the adjustment component is located at the bottom inside the base (1); It contains a rolling pressing mechanism.
2. The soldering apparatus for producing a single-sided PCB according to claim 1, characterized in that: The welding sliding assembly includes a first servo motor (2); the first servo motor (2) is located on one side of the top of the base (1); a first rotating screw (21) is rotatably connected inside the sliding groove (11); one end of the first rotating screw (21) is fixedly connected to the output end of the first servo motor (2); a special-shaped slider (22) is threadedly connected to the outside of the first rotating screw (21); the special-shaped slider (22) slides inside the sliding groove (11); a take-up shaft (23) is fixedly connected to the top of the special-shaped slider (22); a flux feeding device body (24) is installed on the top of the special-shaped slider (22). A welding wire (25) is installed on the outside of the take-up shaft (23); the welding wire (25) passes through the shaped slider (22); a through pipe (26) is installed at the output end of the flux feeding device body (24); the through pipe (26) passes through the shaped slider (22); a wire feeding device body (28) is installed at the bottom of the shaped slider (22); a through pipe (26) passes through the inside of the wire feeding device body (28); the end of the through pipe (26) away from the flux feeding device body (24) is connected to the wire feeding device body (28); a hot soldering iron body (27) is installed on one side of the shaped slider (22).
3. The soldering apparatus for producing a single-sided PCB according to claim 1, characterized in that: The adjustment assembly includes a second servo motor (3); the output end of the second servo motor (3) is fixedly connected to a second rotating screw (31); the second rotating screw (31) rotates inside the base (1); a synchronous belt (32) is rotatably connected to the bottom outer side of the second rotating screw (31); a clamping block (33) is threadedly connected to the outer side of the second rotating screw (31); the clamping block (33) slides inside the base (1); multiple sets of telescopic rods (34) are installed inside the clamping block (33).
4. The welding equipment for producing single-sided PCBs according to claim 1, characterized in that: The welding stabilizing mechanism includes a spring shaft (4); the spring shaft (4) is located on both sides of the outer side of the irregular slider (22); a support rod (41) is hinged to the outer side of the spring shaft (4); and a pressure roller (42) is rotatably connected to the end of the support rod (41).
5. The soldering apparatus for producing a single-sided PCB according to claim 1, characterized in that: The rolling pressing mechanism includes a spring limiting block (5); the spring limiting block (5) slides inside the clamping block (33); and a rotating wheel (51) is rotatably connected to the bottom of the spring limiting block (5).
6. The soldering apparatus for producing a single-sided PCB according to claim 3, characterized in that: A triangular support plate (6) is installed at the bottom of the clamping block (33).