Printed circuit board production adaptive soldering device

Abstract

The application provides a printed circuit board production adaptive soldering device, which comprises a soldering host, two mounting plates are symmetrically arranged in the soldering host, a spacing adjusting assembly is arranged on the top surface of the mounting plate, and a conveying assembly is arranged on the mounting plate; the visual module can not only measure the length and width dimensions of the printed circuit board, but also identify the irregular edge profile of the printed circuit board; when the production line is switched to an irregular printed circuit board, the visual module sends the collected irregular profile data to an external control system, the control system accurately calculates the control amount of the fine adjustment assembly and the driving assembly, and controls the soldering device according to the calculated control amount, so that the soldering device can be self-adaptive to various complex shapes of printed circuit boards without changing the jig.

Description

Technical Field

[0001] This invention relates to the field of printed circuit board soldering technology, and in particular to an adaptive soldering apparatus for printed circuit board production. Background Technology

[0002] Wave soldering is a key process in printed circuit board (PCB) assembly. It involves forming waves of molten solder that contact the soldering areas on the PCB, thus achieving an electrical connection between electronic components and the circuit board. In existing PCB production lines, wave soldering equipment is widely used for automated soldering of large volumes of PCBs. Its soldering efficiency and quality directly impact the reliability of the final product and production costs.

[0003] Currently, traditional wave soldering equipment requires operators to manually adjust the conveyor track width parameters based on the specifications, dimensions, and shape of the printed circuit boards (PCBs) before soldering. This adjustment process relies on operator experience, is cumbersome, and necessitates repeated shutdowns for adjustments when frequently switching between different PCB models on the production line, leading to prolonged production downtime and reduced equipment utilization. Furthermore, due to differences in size and shape among different PCBs, existing equipment, after adjustment, is typically only suitable for continuous soldering of PCBs with regular shapes and consistent specifications. Its conveyor mechanisms and fixing devices are mostly designed for standard rectangular boards, lacking adaptability to different shapes and contours.

[0004] Based on the above reasons, this invention proposes an adaptive soldering device for printed circuit board production to solve the aforementioned problems existing in the prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an adaptive soldering device for printed circuit board production with the advantage of automatically adapting to soldering of printed circuit boards of different specifications and shapes.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An adaptive soldering apparatus for printed circuit board production includes a soldering main unit. Two mounting plates are symmetrically arranged within the soldering main unit. A spacing adjustment component is mounted on the top surface of each mounting plate, and a conveying component is mounted on each mounting plate. Several connecting rods are evenly distributed and fixedly connected to each conveying component. A fixing plate is fixedly connected to each connecting rod. A threaded rod is movably connected to each fixing plate, and a drive gear is threaded onto the threaded rod. Several drive components are mounted on the mounting plates. A fine-tuning component is located at the end of each threaded rod furthest from the mounting plate. A vision module is fixedly mounted on the front side of the soldering main unit. The fine-tuning component includes a side plate. The side plate is fixedly connected to the threaded rod, and a round shaft is movably connected to the side plate. A turbine is fixedly connected to the top of the round shaft, and an eccentric round plate is fixedly connected to the bottom of the round shaft. A worm gear meshes with the turbine, and a second motor is fixedly connected to one end of the worm gear. The second motor is fixedly connected to the side plate, and an annular support shell is fixedly connected to the side wall of the eccentric round plate. The vision module is used to identify the edge contour data of the printed circuit board and transmit the edge contour data to the external control system. The external control system controls the drive component and the fine-tuning component based on the edge contour data to meet the adaptive soldering requirements of printed circuit boards with different edge contours.

[0007] Preferably, the spacing adjustment assembly includes a top plate, which is fixedly connected to the center of the top surface of the soldering host, and a first motor is fixedly connected to the center of the top surface of the top plate. A rotating shaft is fixedly connected to the output end of the first motor, and a first connecting plate is fixedly connected to the rotating shaft. A second connecting plate is hinged to both sides of the first connecting plate, and a traction plate is hinged to the other side of the second connecting plate. The traction plates are fixedly connected to the top surfaces of two mounting plates, and two crossbars are movably connected to the two traction plates. Two flat plates are symmetrically fixedly connected to the top surface of the soldering host, and the two ends of the crossbars are fixedly connected to the flat plates on both sides.

[0008] Preferably, the conveying assembly includes a main shaft, two of which are symmetrically and movably installed within the mounting plate. Each main shaft is fixedly connected to a conveying sprocket, and a conveying motor is fixedly connected to the top of one of the main shafts. The conveying motor is fixedly connected to the mounting plate, and the same conveying chain is fitted onto both conveying sprockets.

[0009] Preferably, the drive assembly includes a drive motor, which is fixedly connected inside the mounting plate. The distance between two adjacent drive motors is equal to the distance between two adjacent drive gears. The output ends of the drive motors are all fixedly connected to drive shafts, and drive gears are fixedly connected to the drive shafts. The drive gears are matched with the drive gears.

[0010] Preferably, a distance sensor is fixedly connected to the side plate at the end away from the threaded rod, and another distance sensor is fixedly connected to the side of the fixed plate away from the drive gear.

[0011] Preferably, a vertical rod is movably connected to the top surface of the fixed plate, a hanging plate is fixedly connected to the top end of the vertical rod, and an arc-shaped plate is fixedly connected to the bottom end of the vertical rod. A spring is sleeved on the vertical rod, and the two ends of the spring are fixedly connected to the hanging plate and the fixed plate respectively. An anti-slip pad is fixedly connected to the bottom surface of the arc-shaped plate, and the anti-slip pad is pressed against the outer wall of the threaded rod.

[0012] Preferably, the fixing plate has a through hole, the threaded rod passes through the through hole and a sliding groove is formed on the side wall of the threaded rod, a slider is movably connected in the sliding groove, and the slider is fixedly connected to the inner wall of the through hole.

[0013] Preferably, an annular slide plate is fixedly connected to one side of the drive gear, and an annular slide rail is movably connected to the annular slide plate, the annular slide rail being fixedly connected to the fixed plate.

[0014] Preferably, a limiting plate is fixedly connected to one end of the threaded rod near the mounting plate, and the diameter of the limiting plate is larger than the diameter of the threaded rod.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: (1) The vision module of the present invention can not only measure the length and width of the printed circuit board, but also identify the irregular edge contour of the printed circuit board. When the production line is switched to irregular printed circuit board, the vision module sends the collected irregular contour data to the external control system. The control system accurately calculates the control amount of the fine-tuning component and the drive component, and controls the soldering device according to the calculated control amount, so that the soldering device can adapt to various complex shapes of printed circuit boards without changing the fixture. (2) Through the deep collaboration between the vision module and the fine-tuning component, the vision module first acquires images of the printed circuit board before it enters the soldering host. For conventional rectangular printed circuit boards, the control system only needs to adjust the spacing of the threaded rods on both sides through the drive component to complete the adaptation. However, for irregular printed circuit boards, the vision module will identify these special contour feature points and transmit the coordinate data to the control system. The control system calculates the required rotation angle of the second motor in the fine-tuning component based on these coordinate data. By precisely controlling the step angle of the second motor, the annular support shell can move to the irregular edge of the irregular printed circuit board, providing precise support force and breaking through the limitation of traditional mechanical fixtures that can only adapt to regular shapes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure on the mounting plate of the present invention; Figure 3 This is a schematic diagram of the structure on the fixing plate of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the threaded rod of the present invention; Figure 5 This is a schematic diagram of the structure of the fine-tuning component of the present invention; Figure 6 This is a schematic diagram of the spacing adjustment component of the present invention; Figure 7 This is a schematic diagram of the structure of the driving component of the present invention; Figure 8 This is a schematic diagram of the structure on the vertical rod of the present invention; Reference numerals: 1. Soldering main unit; 2. Mounting plate; 3. Spacing adjustment assembly; 4. Conveying assembly; 5. Connecting rod; 6. Fixing plate; 7. Threaded rod; 8. Drive gear; 9. Drive assembly; 10. Fine-tuning assembly; 11. Vision module; 12. Top plate; 13. First motor; 14. Rotating shaft; 15. First connecting plate; 16. Second connecting plate; 17. Traction plate; 18. Crossbar; 19. Flat plate; 20. Main shaft; 21. Conveyor sprocket; 22. Conveyor 23. Motor; 24. Conveyor chain; 25. Drive motor; 26. Drive shaft; 27. Drive gear; 28. Side plate; 29. ​​Round shaft; 30. Turbine; 31. Eccentric circular plate; 32. Worm gear; 33. Second motor; 34. Annular support shell; 35. Distance sensor; 36. Vertical rod; 37. Hanging plate; 38. Curved plate; 39. Spring; 40. Anti-slip pad; 41. Slide rail; 42. Annular slide rail; 43. Limiting plate; 44. Annular sliding plate. Detailed Implementation

[0017] The adaptive soldering apparatus for printed circuit board production provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0018] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0019] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0020] It is understood that the meanings of “on”, “above” and “above” in this disclosure should be interpreted in the broadest sense, such that “on” means not only “directly on” something, but also includes something with an intermediary feature or layer, and that “above” or “above” means not only “on” something, but also includes something “above” or “above” without an intermediary feature or layer.

[0021] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0022] like Figures 1-8 As shown, an embodiment of the present invention provides an adaptive soldering device for printed circuit board production, including a soldering host 1. A vision module 11 is fixedly installed on the front side of the soldering host 1. The vision module 11 is used to identify the edge contour data of the printed circuit board and transmit the edge contour data to an external control system. The external control system controls the driving component 9 and the fine-tuning component 10 based on the edge contour data to complete the adaptive soldering requirements of printed circuit boards with different edge contours.

[0023] In this embodiment, the vision module 11 can not only measure the length and width of the printed circuit board, but also identify the irregular edge contours of the printed circuit board. In actual production, when the production line is switched to irregular printed circuit boards (such as circular or polygonal notched shapes), the vision module 11 sends the collected irregular contour data to an external control system, such as a PLC control system. The PLC control system accurately calculates the control amount of the fine-tuning component 10 and the drive component 9 based on the data, and controls the soldering device according to the calculated control amount. This allows the soldering device to adapt to various complex shapes of printed circuit boards without changing the fixture, solving the technical problem that traditional devices can only adjust the spacing through linear motion and cannot adapt to irregular board support.

[0024] Two mounting plates 2 are symmetrically arranged inside the soldering host 1. A spacing adjustment component 3 is provided on the top surface of the mounting plate 2. The spacing adjustment component 3 includes a top plate 12, which is fixedly connected to the center of the top surface of the soldering host 1. A first motor 13 is fixedly connected to the center of the top surface of the top plate 12. A rotating shaft 14 is fixedly connected to the output end of the first motor 13. A first connecting plate 15 is fixedly connected to the rotating shaft 14. A second connecting plate 16 is hinged to both sides of the first connecting plate 15. A traction plate 17 is hinged to the other side of the second connecting plate 16. The traction plates 17 are fixedly connected to the top surfaces of the two mounting plates 2. Two crossbars 18 are movably connected to the two traction plates 17. Two flat plates 19 are symmetrically fixedly connected to the top surface of the soldering host 1. The two ends of the crossbars 18 are fixedly connected to the flat plates 19 on both sides.

[0025] In this embodiment, by starting the first motor 13, the first motor 13 drives the first connecting plate 15 to rotate via the rotating shaft 14. The first connecting plate 15 drives the second connecting plates 16 on both sides to move. The second connecting plates 16 drive the traction plates 17 on both sides to move, so that the traction plates 17 move along the crossbar 18 and drive the mounting plate 2 to move. This allows for rapid adjustment of the mounting plate 2 at large intervals, thus adapting to the soldering of printed circuit boards of different specifications. Each mounting plate 2 is provided with a conveying assembly 4. Several connecting rods 5 are evenly distributed and fixedly connected to the conveying assembly 4. Each connecting rod 5 is fixedly connected with a fixing plate 6. The conveying assembly 4 includes a main shaft 20. Two main shafts 20 are symmetrically and movably installed inside the mounting plate 2. Each main shaft 20 is fixedly connected with a conveying sprocket 21. One of the main shafts 20 is fixedly connected to the top of a conveying motor 22. The conveying motor 22 is fixedly connected to the mounting plate 2. The same conveying chain 23 is sleeved on the two conveying sprockets 21.

[0026] In this embodiment, the conveyor motor 22 is started, and the conveyor motor 22 drives the conveyor sprocket 21 to rotate through the main shaft 20. The conveyor sprocket 21 drives the conveyor chain 23 to move, and the conveyor chain 23 drives the fixed plate 6 to move, thereby moving the printed circuit board into the soldering host 1 a specified distance, thereby realizing the automated soldering and conveying operation of the printed circuit board.

[0027] A threaded rod 7 is movably connected to the fixed plate 6, and a drive gear 8 is threadedly connected to the threaded rod 7. Several drive components 9 are installed on the mounting plate 2. Each drive component 9 includes a drive motor 24, which is fixedly connected inside the mounting plate 2. The distance between two adjacent drive motors 24 is equal to the distance between two adjacent drive gears 8. The output end of each drive motor 24 is fixedly connected to a drive shaft 25, and a drive gear 26 is fixedly connected to the drive shaft 25. The drive gear 26 is matched with the drive gear 8.

[0028] In this embodiment, by starting the drive motor 24, the drive motor 24 drives the drive gear 26 to rotate via the drive shaft 25. The drive gear 26 meshes with the drive gear 8 to rotate. Since the drive gear 8 and the threaded rod 7 are connected by a thread, the rotation of the drive gear 8 can adjust the lateral position of the threaded rod 7, thereby adjusting the distance between the two threaded rods 7, and thus enabling the soldering operation on printed circuit boards of different shapes.

[0029] Furthermore, a vertical rod 35 is movably connected to the top surface of the fixed plate 6. A hanging plate 36 is fixedly connected to the top of the vertical rod 35, and an arc-shaped plate 37 is fixedly connected to the bottom of the vertical rod 35. A spring 38 is sleeved on the vertical rod 35, and both ends of the spring 38 are fixedly connected to the hanging plate 36 and the fixed plate 6, respectively. An anti-slip pad 39 is fixedly connected to the bottom surface of the arc-shaped plate 37. The anti-slip pad 39 is pressed against the outer wall of the threaded rod 7. Utilizing the elastic force of the spring 38, the hanging plate 36 can drive the vertical rod 35 to move, and the vertical rod 35 can drive the arc-shaped plate 37 to press against the outer wall of the threaded rod 7. The anti-slip pad 39 effectively improves the stability of the threaded rod 7, avoids fixing errors caused by the movement of the threaded rod 7, and improves the stability of welding.

[0030] Furthermore, a through hole is provided on the fixing plate 6, through which the threaded rod 7 passes, and a sliding groove 40 is provided on the side wall of the threaded rod 7. A slider 41 is movably connected in the sliding groove 40, and the slider 41 is fixedly connected to the inner wall of the through hole. This allows the threaded rod 7 to move only laterally under the meshing of the drive gear 8, avoiding rotation that could lead to instability and improving stability during welding.

[0031] A ring-shaped slide plate 44 is fixedly connected to one side of the drive gear 8. A ring-shaped slide rail 42 is movably connected to the ring-shaped slide plate 44. The ring-shaped slide rail 42 is fixedly connected to the fixed plate 6, which allows the drive gear 8 to rotate stably.

[0032] A fine-tuning component 10 is provided at the end of the threaded rod 7 away from the mounting plate 2. The fine-tuning component 10 includes a side plate 27, which is fixedly connected to the threaded rod 7. A round shaft 28 is movably connected to the side plate 27. A turbine 29 is fixedly connected to the top of the round shaft 28. An eccentric circular plate 30 is fixedly connected to the eccentric part of the round shaft 28. A worm gear 31 is meshed on the turbine 29. A second motor 32 is fixedly connected to one end of the worm gear 31. The second motor 32 is fixedly connected to the side plate 27. An annular support shell 33 is fixedly connected to the side wall of the eccentric circular plate 30.

[0033] In this embodiment, the vision module 11 and the fine-tuning component 10 work in close collaboration. Before printed circuit boards of different specifications enter the soldering host 1, the vision module 11 first acquires images of the printed circuit boards. For conventional rectangular printed circuit boards, the control system only needs to adjust the spacing of the threaded rods 7 on both sides through the drive component 8 to complete the adaptation. However, for irregularly shaped printed circuit boards (such as boards with curved corners or irregular edges), the vision module 11 will identify these special contour feature points and transmit the coordinate data to the control system. For example, one contour feature point is extracted every unit distance, and a coordinate system is established with the central axis of the soldering host 1 as the origin. Coordinate data; the control system calculates the required rotational step angle of the second motor 32 in the fine-tuning component 10 based on the difference between these coordinate data and the initial coordinates of the annular support shell 33. Since the eccentric circular plate 30 is eccentrically mounted on the circular shaft 28, when the second motor 32 drives the worm gear 31 to rotate, it will drive the worm 29 and the circular shaft 28 to rotate, causing the eccentric circular plate 30 to drive the annular support shell 33 to produce displacement on the horizontal plane. By precisely controlling the step angle of the second motor 32, the annular support shell 33 can move to below the irregular edge of the irregular printed circuit board, providing precise support force and breaking through the limitation of traditional mechanical fixtures that can only adapt to regular shapes.

[0034] Furthermore, a limiting plate 43 is fixedly connected to one end of the threaded rod 7 near the mounting plate 2. The diameter of the limiting plate 43 is larger than the diameter of the threaded rod 7, thereby limiting the rotation of the threaded rod 7.

[0035] A distance sensor 34 is fixedly connected to the side plate 27 away from the threaded rod 7, and another distance sensor 34 is fixedly connected to the side of the fixing plate 6 away from the drive gear 8. This allows for the measurement of the distance between the mounting plate 2 and the threaded rod 7, thereby improving the stability of the printed circuit board soldering and fixing.

[0036] In this embodiment, the working principle is as follows: During use, printed circuit boards with similar clamping widths are first placed together, and the width data of one of the printed circuit boards is acquired through the vision module 11. At this time, the external control system outputs data between the two mounting plates 2 based on the acquired width and half the length of the threaded rod 7. The first motor 13 starts, and the first motor 13 drives the first connecting plate 15 to rotate via the rotating shaft 14. The first connecting plate 15 drives the second connecting plates 16 on both sides to move, and the second connecting plates 16 drive the traction plates 17 on both sides to move, causing the traction plates 17 to move along the crossbar 18, and driving the mounting plate 2 to move through the traction plates 17. Based on the distance transmission on the two fixing plates 6, the data is transmitted... Sensor 34 collects data on the spacing between the mounting plates 2. When the spacing between the two mounting plates 2 is the same as the output data, the first motor 13 stops rotating. At this time, the printed circuit board is placed on the upper side of the vision module 11 through an external device. The vision module 11 collects the edge shape data and width data of the printed circuit board, and then the drive motor 24 starts. The drive motor 24 drives the drive gear 26 to rotate through the drive shaft 25. The drive gear 26 meshes with the drive gear 8 to rotate. Because the drive gear 8 and the threaded rod 7 are threadedly connected, the lateral position of the threaded rod 7 can be adjusted by rotating the drive gear 8. This is achieved by the distance sensors 34 on the two side plates 27 on the same cross section. The movement distance of the threaded rods 7 is now controlled. When the distance between the two threaded rods 7 is close to the collected width data, the rotation of the drive motor 24 is stopped, and the second motor 32 is started. The second motor 32 drives the worm gear 31 to mesh with the turbine 29 to rotate. The turbine 29 drives the eccentric circular plate 30 to rotate through the circular shaft 28. The eccentric circular plate 30 drives the annular support shell 33 to rotate, so that the side wall of the annular support shell 33 can accurately support the printed circuit board, realizing automatic welding and fixing to adapt to the specifications of the printed circuit board. Then, the conveyor motor 22 and the drive motor 24 are started. The conveyor motor 22 drives the conveyor sprocket 21 to rotate through the main shaft 20. The conveyor sprocket 21 drives the conveyor chain 23 to move. 3 drives the fixed plate 6 to move, thereby moving the printed circuit board into the soldering host 1 a specified distance. At this time, the drive motor 24 drives the drive gear 26 to rotate adaptively to avoid affecting the position of the drive gear 8. Then, another printed circuit board is placed in the vision module 11 for data acquisition. Repeating the above process, another printed circuit board can be soldered and fixed. With the drive of the conveyor 22, the printed circuit board can be passed through the soldering host 1. The soldering host 1 completes the automatic flux spraying and soldering operation of the printed circuit board. This device can adapt to the soldering and fixing of printed circuit boards of different shapes, and can solder printed circuit boards of different specifications in the same soldering batch.

[0037] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An adaptive soldering apparatus for printed circuit board production, comprising a soldering host (1), characterized in that, The soldering host (1) is symmetrically provided with two mounting plates (2). A spacing adjustment component (3) is provided on the top surface of the mounting plate (2), and a conveying component (4) is provided on each mounting plate (2). Several connecting rods (5) are evenly distributed and fixedly connected on the conveying component (4). A fixing plate (6) is fixedly connected to each connecting rod (5). A threaded rod (7) is movably connected to the fixing plate (6). A drive gear (8) is threadedly connected to the threaded rod (7). Several drive components (9) are installed on the mounting plate (2). A fine adjustment component (10) is provided at the end of the threaded rod (7) away from the mounting plate (2). A vision module (11) is fixedly installed on the front side of the soldering host (1). The fine adjustment component (10) includes a side plate (27). The side plate (27) and the threaded rod (7) A fixed connection is made, and a round shaft (28) is movably connected to the side plate (27). A turbine (29) is fixedly connected to the top of the round shaft (28), and an eccentric round plate (30) is fixedly connected to the bottom of the round shaft (28). A worm (31) is meshed on the turbine (29). A second motor (32) is fixedly connected to one end of the worm (31). The second motor (32) is fixedly connected to the side plate (27). An annular support shell (33) is fixedly connected to the side wall of the eccentric round plate (30). The vision module (11) is used to identify the edge contour data of the printed circuit board and transmit the edge contour data to the external control system. The external control system controls the drive component (9) and the fine-tuning component (10) based on the edge contour data to complete the adaptive soldering requirements of printed circuit boards with different edge contours.

2. The adaptive soldering apparatus for printed circuit board production according to claim 1, characterized in that, The spacing adjustment component (3) includes a top plate (12), which is fixedly connected to the center of the top surface of the soldering host (1). A first motor (13) is fixedly connected to the center of the top surface of the top plate (12). A rotating shaft (14) is fixedly connected to the output end of the first motor (13). A first connecting plate (15) is fixedly connected to the rotating shaft (14). A second connecting plate (16) is hinged to both sides of the first connecting plate (15). A traction plate (17) is hinged to the other side of the second connecting plate (16). The traction plates (17) are fixedly connected to the top surfaces of the two mounting plates (2). Two crossbars (18) are movably connected to the two traction plates (17). Two flat plates (19) are symmetrically fixedly connected to the top surface of the soldering host (1). The two ends of the crossbars (18) are fixedly connected to the flat plates (19) on both sides.

3. The adaptive soldering apparatus for printed circuit board production according to claim 2, characterized in that, The conveying assembly (4) includes a main shaft (20). Two main shafts (20) are symmetrically and movably installed in the mounting plate (2). Each main shaft (20) is fixedly connected to a conveying sprocket (21), and a conveying motor (22) is fixedly connected to the top of one of the main shafts (20). The conveying motor (22) is fixedly connected to the mounting plate (2), and the same conveying chain (23) is sleeved on the two conveying sprockets (21).

4. The adaptive soldering apparatus for printed circuit board production according to claim 3, characterized in that, The drive assembly (9) includes a drive motor (24), which is fixedly connected to the mounting plate (2). The distance between two adjacent drive motors (24) is equal to the distance between two adjacent drive gears (8). The output ends of the drive motors (24) are all fixedly connected to drive shafts (25). A drive gear (26) is fixedly connected to the drive shaft (25). The drive gear (26) is matched with the drive gear (8).

5. The adaptive soldering apparatus for printed circuit board production according to claim 1, characterized in that, A distance sensor (34) is fixedly connected to the side plate (27) away from the threaded rod (7), and another distance sensor (34) is fixedly connected to the side of the fixed plate (6) away from the drive gear (8).

6. The adaptive soldering apparatus for printed circuit board production according to claim 5, characterized in that, A vertical rod (35) is movably connected to the top surface of the fixed plate (6). A hanging plate (36) is fixedly connected to the top of the vertical rod (35), and an arc plate (37) is fixedly connected to the bottom of the vertical rod (35). A spring (38) is sleeved on the vertical rod (35). The two ends of the spring (38) are fixedly connected to the hanging plate (36) and the fixed plate (6) respectively. An anti-slip pad (39) is fixedly connected to the bottom surface of the arc plate (37), and the anti-slip pad (39) is pressed against the outer wall of the threaded rod (7).

7. The adaptive soldering apparatus for printed circuit board production according to claim 6, characterized in that, The fixed plate (6) has a through hole, the threaded rod (7) passes through the through hole and the threaded rod (7) has a sliding groove (40) on its side wall, and a slider (41) is movably connected in the sliding groove (40), and the slider (41) is fixedly connected to the inner wall of the through hole.

8. The adaptive soldering apparatus for printed circuit board production according to claim 1, characterized in that, A ring-shaped slide plate (44) is fixedly connected to one side of the drive gear (8), and a ring-shaped slide rail (42) is movably connected to the ring-shaped slide plate (44). The ring-shaped slide rail (42) is fixedly connected to the fixed plate (6).

9. The adaptive soldering apparatus for printed circuit board production according to claim 1, characterized in that, The threaded rod (7) is fixedly connected to a limiting plate (43) at one end near the mounting plate (2), and the diameter of the limiting plate (43) is greater than the diameter of the threaded rod (7).

Images