A circuit board manufacturing apparatus and a manufacturing process thereof
By combining mounting fixtures, shifting structures, and flipping structures, the circuit board can be automatically moved and flipped, solving the problems of low welding precision and cumbersome operation in existing technologies, and achieving efficient and precise welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG CORE POINT TECH
- Filing Date
- 2023-06-25
- Publication Date
- 2026-05-29
AI Technical Summary
Existing PCB chip soldering equipment requires manual adjustment of the circuit board position, resulting in low soldering accuracy and cumbersome operation, which affects soldering efficiency.
By employing mounting fixtures, a shifting structure, and a flipping structure, the circuit board is automatically moved and flipped to align the points to be soldered with the soldering gun, achieving precise soldering and avoiding secondary clamping of the circuit board.
It improves welding precision and efficiency, frees up labor, ensures the accuracy of welding positions, and enables the counting of welding operations.
Smart Images
Figure CN116600477B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of circuit board manufacturing technology, and particularly relates to a circuit board manufacturing equipment and its manufacturing process. Background Technology
[0002] In recent years, the development of electronic industry processes has seen a clear trend in reflow soldering technology. In principle, traditional through-hole components can also be soldered using reflow soldering, commonly known as through-hole reflow soldering. Its advantage is that it can potentially complete all solder joints simultaneously, minimizing production costs. However, temperature-sensitive components limit the application of reflow soldering, whether for through-hole components or SMD components. Consequently, attention has turned to selective soldering. In most applications, selective soldering can be used after reflow soldering, making it an economical and efficient method for soldering remaining through-hole components, and it is fully compatible with future lead-free soldering.
[0003] Existing PCB chip soldering equipment requires manual adjustment of the circuit board position before soldering. Relying solely on the operator's visual observation for accurate positioning not only increases the workload and increases the likelihood of errors, but also makes it difficult to quickly align the soldering head with the solder joints. The soldering head's accuracy is low, and when soldering the reverse side, the circuit board needs to be disassembled and reassembled, making the operation cumbersome and affecting soldering efficiency. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned technical problems by providing a circuit board manufacturing equipment and its manufacturing process, thereby improving processing accuracy and efficiency and freeing up labor.
[0005] In view of this, the present invention provides a circuit board manufacturing equipment, including a base and a soldering torch, wherein a mounting frame is provided on the base, the mounting frame is fixedly mounted on a support, and the mounting frame is provided with:
[0006] The mounting fixture is used to clamp the circuit board. The mounting fixture has a through-hole in the middle, and the circuit board is placed at the through-hole. The welding gun is used to weld the circuit board clamped on the mounting fixture.
[0007] A displacement structure is provided on the mounting fixture to move the mounting fixture so that the position to be soldered on the circuit board corresponds to the position of the soldering gun;
[0008] The mounting frame and the bracket are provided with a flipping structure, which allows the mounting frame to flip and the welding torch to be moved out of position when the mounting frame flips.
[0009] In this technical solution, the shifting structure can be programmed to automatically move the mounting fixture with the circuit board, so that the solder points on the circuit board are moved sequentially to the bottom of the soldering gun for soldering, which improves processing accuracy and efficiency and frees up labor. In addition, the flipping structure can flip the mounting frame, mounting fixture and circuit board together, which can avoid the need for secondary clamping of the circuit board.
[0010] Furthermore, the flipping structure includes:
[0011] A fixed shaft is fixedly mounted on the bracket and extends toward the mounting clamp;
[0012] A fixed disk is sleeved on the aforementioned fixed shaft and fixedly connected to the fixed shaft. Several guide holes are provided on the fixed disk along the circumferential direction.
[0013] The sliding disk is slidably sleeved on the fixed shaft and located on the side of the fixed disk close to the mounting fixture. The end of the sliding disk facing the mounting fixture is provided with a first synchronous tooth. The other end face of the sliding disk is fixedly provided with a guide pin corresponding to the above-mentioned guide hole along the circumferential direction. The sliding disk can slide so that the guide pin can be inserted into the corresponding guide hole. A drive handle is provided on the outer periphery of the sliding disk.
[0014] A rotating disk is rotatably mounted on the aforementioned fixed shaft. One end of the rotating disk is fixedly connected to the mounting fixture, and the other end is provided with a second synchronous tooth that can mesh with the first synchronous tooth on the sliding disk.
[0015] A return spring is sleeved on a guide pin, with its two ends abutting against the end faces of the sliding disk and the fixed disk, respectively. The return spring always has a tendency to push the sliding disk toward the rotating disk.
[0016] In this technical solution, when it is necessary to flip the mounting fixture, push the drive handle to make the sliding disk slide away from the mounting fixture along the fixed axis. The return spring is then compressed, and the guide pin is inserted into the guide hole. Continue to drag the drive handle to completely disengage the first and second synchronous teeth. Then, rotate the mounting fixture to flip it. After flipping it to the correct position, the sliding disk slides back to its original position, restoring the first and second synchronous teeth to their meshed state. The flipping structure allows the mounting bracket, mounting fixture, and circuit board to be flipped together, enabling welding of the positions on the reverse side of the circuit board that need to be welded, thus avoiding secondary clamping of the circuit board.
[0017] Furthermore, the flipping structure also includes a triggering structure, which can simultaneously trigger the sliding locking action of the sliding disk, the flipping horizontal guiding action of the mounting fixture, and the welding counting action.
[0018] Furthermore, the triggering structure includes:
[0019] Each guide hole contains two trigger pins, positioned on opposite sides of the guide hole's axis. The trigger pin axes are perpendicular to the guide holes and can slide along their own axes. The two proximal ends of the two trigger pins form a first inclined surface. A second inclined surface, corresponding to the first, is located at the point where the guide pin enters the guide hole. A reset element extends outward from the outer wall of the guide pin, and this reset element has a third inclined surface parallel to the first inclined surface. A reset groove is located on the side of the trigger pin facing the reset element. The inner wall of this reset groove, opposite the third inclined surface, forms a fourth inclined surface, which works in conjunction with the third inclined surface.
[0020] The trigger hole is located on the wall of the fixed plate and is axially aligned with the trigger pin. The outer end of the trigger pin can slide out of the trigger hole to trigger the sliding locking action of the sliding plate, the flipping horizontal guiding action of the mounting fixture, and the welding counting action.
[0021] Furthermore, a total of four guide holes are provided. One of the guide holes, which is connected by a vertical line, has an inclined locking spring on the outer peripheral wall of a trigger pin. When the locking spring is compressed, the maximum distance between the outer wall of the trigger pin and the outermost end of the locking spring is less than the diameter of the trigger hole. When the locking spring is in its natural state, the maximum distance between the outer wall of the trigger pin and the outermost end of the locking spring is greater than the diameter of the trigger hole.
[0022] In this technical solution, when the mounting bracket needs to be flipped, the drive handle is pushed to make the sliding plate slide away from the mounting fixture along the fixed axis. After the guide pin is inserted into the guide hole, the guide pin continues to be inserted, causing the second inclined surface to press against the first inclined surface. This causes the trigger pin to move away from the guide pin and insert into the trigger hole, thus compressing the locking spring. As the guide pin is inserted deeper into the guide hole, the locking spring of the trigger pin shaft passes out of the trigger hole. The locking spring then resets and locks at the outer end of the trigger hole, stopping the sliding plate from sliding and maintaining the sliding locking action. In this way, the mounting fixture can be flipped by both hands, and the horizontal positioning of the mounting fixture after flipping can be achieved, which is convenient for operation.
[0023] Furthermore, a counter button is provided on the trigger hole wall corresponding to the other guide hole in the two guide holes that are connected vertically. When the counter button is pressed, the counter counts.
[0024] In this technical solution, when the mounting bracket needs to be flipped, the drive handle is pushed to make the sliding plate slide away from the mounting fixture along the fixed axis. After the guide pin is inserted into the guide hole, the guide pin continues to be inserted, which will cause the second inclined surface to press against the first inclined surface. This causes the trigger pin to move away from the guide pin and insert into the trigger hole. The trigger pin presses against the counter button in the trigger hole. So, each time the mounting fixture is flipped, a circuit board is soldered, and the counter counts once.
[0025] Furthermore, a laser light is provided at the end of the trigger pin corresponding to the two horizontally connected guide holes, and a light switch is provided on the wall of the corresponding trigger hole. When the light switch is pressed, the laser light is lit. A horizontal mark is correspondingly provided on the side of the mounting bracket, and the laser light emitted by the laser light is at the same height as the horizontal mark.
[0026] In this technical solution, when the mounting bracket needs to be flipped, the drive handle is pushed to make the sliding plate slide away from the mounting fixture along the fixed axis. After the guide pin is inserted into the guide hole, the guide pin continues to be inserted, causing the second inclined surface to press against the first inclined surface. This causes the trigger pin to move away from the guide pin and insert into the trigger hole. The trigger pin shaft presses against the light switch in the trigger hole. When the laser lights on the end of the trigger pin shaft that extends into the trigger hole are both shining on the horizontal mark, it indicates that the mounting bracket has been flipped into place and is in a horizontal state. This ensures the accuracy of the welding position.
[0027] Furthermore, the displacement structure includes a lateral sliding structure, the lateral sliding structure comprising:
[0028] A slide block, which is slidably mounted on the mounting frame along the lateral direction of the mounting frame;
[0029] A transverse gear is connected to the output end of a transverse motor, and the transverse gear is rotatably mounted on a slide.
[0030] A rack is provided on the mounting frame along the transverse direction of the mounting frame, and a transverse gear meshes with the rack;
[0031] A connecting rod is fixedly connected to a slide block, and the connecting rod is fixedly connected to the aforementioned mounting clamp in the lateral direction of the mounting frame;
[0032] In this technical solution, starting the transverse motor enables the transverse gear to mesh with the rack and slide along the length of the rack, thereby enabling the slide block to drive the connecting rod and the mounting fixture to slide laterally along the mounting frame.
[0033] Furthermore, the displacement structure further includes a longitudinal sliding structure, the longitudinal sliding structure comprising:
[0034] A longitudinal traverse motor, which is fixedly connected to the slide block;
[0035] A longitudinal sliding screw is provided, which is parallel to the connecting rod and arranged along the longitudinal direction of the mounting frame. The longitudinal sliding screw is helically connected to the mounting clamp, which is sleeved on the connecting rod and can slide along the length of the connecting rod.
[0036] In this technical solution, starting the longitudinal traverse motor enables the longitudinal traverse screw to rotate, allowing the mounting fixture to slide longitudinally along the mounting frame.
[0037] Furthermore, a circuit board manufacturing process includes the following steps:
[0038] S1: Fabrication of ceramic substrate;
[0039] S2: Drill holes in the ceramic substrate to form holes for electroplating copper layers to conduct electricity to the circuit board;
[0040] S3: Form a magnesium alloy layer on the surface of the ceramic substrate so that the copper layer can better adhere to the surface of the ceramic substrate during the subsequent S5 step of copper plating.
[0041] S4: Degreasing treatment of magnesium alloy layer surface, solvents are: trichloroethylene, acetone, ethyl acetate and methyl ethyl ketone;
[0042] S5: Apply copper plating to the ceramic substrate, depositing a thin layer of chemical copper on the surface of the ceramic substrate and the hole walls to make the ceramic substrate conductive.
[0043] S6: Expose, develop, and etch the ceramic substrate, and then remove the excess copper and magnesium alloy layers;
[0044] S7: Welding: Install the circuit board on the mounting fixture, and weld the upper surface of the circuit board with a welding gun. After welding one side is completed, push the drive handle to make the sliding plate slide away from the mounting fixture along the fixed axis so that the guide pin is inserted into the guide hole. Continue to drag the drive handle to completely disengage the first and second synchronous teeth. Rotate the mounting fixture to flip the mounting fixture. At the same time, the triggering structure can simultaneously trigger the sliding locking action of the sliding plate, the flipping horizontal guiding action of the mounting fixture, and the welding counting action.
[0045] The beneficial effects of this invention are:
[0046] 1. The shifting structure allows for pre-programmed automatic movement of the mounting fixture along with the circuit board, sequentially moving the solder points on the circuit board to the area below the welding gun for soldering. This improves processing accuracy and efficiency, and frees up labor. Additionally, the flipping structure allows the mounting bracket, mounting fixture, and circuit board to be flipped together, avoiding secondary clamping of the circuit board. This allows for soldering of the areas requiring welding on the reverse side of the circuit board, eliminating the need for secondary clamping.
[0047] 2. It can ensure the accuracy of the welding position and count the number of welding operations. Attached Figure Description
[0048] Figure 1 This is a perspective view of the present invention;
[0049] Figure 2 yes Figure 1 A magnified view of a portion of the image;
[0050] Figure 3 This is a top view of the fixed disk;
[0051] Figure 4 yes Figure 3 Sectional view AA;
[0052] Figure 5 yes Figure 4 Enlarged view of part B;
[0053] Figure 6 yes Figure 4 A magnified view of a portion of the image, C;
[0054] Figure 7 yes Figure 3 BB (sectional view);
[0055] Figure 8 yes Figure 7 A magnified view of part D;
[0056] The markings in the diagram are as follows:
[0057] 1. Base; 2. Welding torch; 3. Mounting bracket; 4. Support; 5. Mounting fixture; 6. Flipping structure; 7. Slide; 8. Horizontal gear; 9. Rack; 10. Connecting rod; 11. Horizontal motor; 12. Vertical motor; 13. Vertical lead screw; 14. Fixed shaft; 15. Fixed plate; 16. Sliding plate; 17. Rotating plate; 18. Return spring; 19. Guide hole; 20. First synchronizing gear; 21. Guide pin; 22. Drive handle; 23. Second synchronizing gear; 24. Trigger pin; 25. Trigger hole; 26. First inclined surface; 27. Second inclined surface; 28. Reset component; 29. Third inclined surface; 30. Reset groove; 31. Fourth inclined surface; 32. Locking spring; 33. Counter button; 34. Laser light; 35. Light switch; 36. Horizontal indicator. Detailed Implementation
[0058] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0059] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0060] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0061] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0062] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0063] Example 1:
[0064] like Figure 1 As shown, a circuit board manufacturing equipment includes a base 1 and a welding torch 2. A mounting frame 3 is mounted on the base 1 and fixedly mounted on a support 4. The mounting frame 3 is equipped with a mounting fixture 5 and a shifting structure. The mounting fixture 5 is used to clamp the circuit board, and has a through-hole in its middle. The circuit board is placed at the through-hole. The welding torch 2 is used to weld the circuit board clamped on the mounting fixture 5. The shifting structure is provided on the mounting fixture 5 to move the mounting fixture 5 so that the position of the circuit board to be welded corresponds to the position of the welding torch 2. A flipping structure 6 is provided between the mounting frame 3 and the support 4. The flipping structure 6 allows the mounting frame 3 to flip, and the welding torch 2 can be repositioned when the mounting frame 3 flips.
[0065] The displacement structure includes a lateral sliding structure, which comprises a slide block 7, a transverse sliding gear 8, a rack 9, and a connecting rod 10. The slide block 7 is slidably mounted on the mounting frame 3 along the transverse direction of the mounting frame 3; the transverse sliding gear 8 is connected to the output end of the transverse sliding motor 11 and is rotatably mounted on the slide block 7; the rack 9 is mounted on the mounting frame 3 along the transverse direction of the mounting frame 3, and the transverse sliding gear 8 meshes with the rack 9; the connecting rod 10 is fixedly connected to the slide block 7 and is fixedly connected to the aforementioned mounting fixture 5 in the transverse direction of the mounting frame 3; starting the transverse sliding motor 11 enables the transverse sliding gear 8 to mesh with the rack 9 and slide along the length direction of the rack 9, thereby realizing the transverse sliding of the slide block 7, the connecting rod 10, and the mounting fixture 5 along the transverse direction of the mounting frame 3.
[0066] The displacement structure further includes a longitudinal sliding structure, which comprises a longitudinal sliding motor 12 and a longitudinal sliding lead screw 13. The longitudinal sliding motor 12 is fixedly connected to the slide block 7; the longitudinal sliding lead screw 13 is parallel to the connecting rod 10 and arranged along the longitudinal direction of the mounting frame 3, and is helically connected to the mounting clamp 5. The mounting clamp 5 is sleeved on the connecting rod 10 and can slide along the length of the connecting rod 10. Starting the longitudinal sliding motor 12 causes the longitudinal sliding lead screw 13 to rotate, allowing the mounting clamp 5 to slide along the longitudinal direction of the mounting frame 3.
[0067] The shifting structure allows the program to be set so that the mounting fixture 5 can automatically move the circuit board, so that the solder points on the circuit board can be moved sequentially to the bottom of the soldering gun 2 for soldering, improving processing accuracy and efficiency and freeing up labor. In addition, the flipping structure 6 can flip the mounting frame 3, the mounting fixture 5 and the circuit board together, which can avoid the need for secondary clamping of the circuit board.
[0068] Example 2:
[0069] like Figure 2 As shown, the flipping structure 6 includes a fixed shaft 14, a fixed disk 15, a sliding disk 16, a rotating disk 17, and a return spring 18. The fixed shaft 14 is fixedly mounted on the bracket 4 and extends towards the mounting fixture 5; the fixed disk 15 is sleeved on the fixed shaft 14 and fixedly connected to the fixed shaft 14, and a plurality of guide holes 19 are formed on the fixed disk 15 along the circumferential direction; the sliding disk 16 is slidably sleeved on the fixed shaft 14 and located on the side of the fixed disk 15 closer to the mounting fixture 5, and a first synchronizing gear 20 is provided at one end of the sliding disk 16 facing the mounting fixture 5, and a guide pin 21 corresponding to the guide holes 19 is fixedly provided on the other end face of the sliding disk 16 along the circumferential direction. The sliding mechanism allows the guide pin 21 to be inserted into the corresponding guide hole 19. A drive handle 22 is provided on the outer periphery of the sliding disk 16. The rotating disk 17 is rotatably sleeved on the fixed shaft 14. One end of the rotating disk 17 is fixedly connected to the mounting clamp 5, and the other end is provided with a second synchronous tooth 23 that can mesh with the first synchronous tooth 20 on the sliding disk 16. The return spring 18 is sleeved on the guide pin 21. The two ends of the return spring 18 abut against the end faces of the sliding disk 16 and the fixed disk 15, respectively. The return spring 18 always has a tendency to push the sliding disk 16 toward the rotating disk 17.
[0070] When it is necessary to flip the mounting fixture 5, push the drive handle 22 to make the sliding plate 16 slide along the fixed shaft 14 away from the mounting fixture 5. The return spring 18 is compressed and the guide pin 21 is inserted into the guide hole 19. Continue to drag the drive handle 22 to completely disengage the first synchronous gear 20 and the second synchronous gear 23. Then rotate the mounting fixture 5 to flip it. After flipping it to the correct position, the sliding plate 16 slides back to its original position, so that the first synchronous gear 20 and the second synchronous gear 23 are restored to the meshing state. The flipping structure 6 can flip the mounting bracket 3, the mounting fixture 5 and the circuit board together, so that the position to be soldered on the reverse side of the circuit board can be soldered, which can avoid the secondary clamping of the circuit board.
[0071] Example 3:
[0072] like Figure 3-6 As shown, the flipping structure 6 also includes a triggering structure, which can simultaneously trigger the sliding locking action of the sliding disk 16, the flipping horizontal guiding action of the mounting fixture 5, and the welding counting action. The triggering structure includes a trigger pin 24 and a trigger hole 25. Two trigger pins 24 are provided in each guide hole 19, and the two trigger pins 24 are respectively located on both sides of the axis of the guide hole 19. The axis of the trigger pin 24 is perpendicular to the guide hole 19, and the trigger pin 24 can slide along its own axis. The two ends of the two trigger pins 24 that are close to each other are inclined to form a first inclined surface 26. The position where the guide pin 21 extends into the guide hole 19 is provided with a second inclined surface 27 corresponding to the first inclined surface 26. A reset member 28 extends outward from the outer wall of the guide pin 21. The reset member 28 is provided with a reset surface corresponding to the first inclined surface 26. The third inclined surface 29 is parallel to the surface 26. The trigger pin 24 is provided with a reset groove 30 on the side facing the reset member 28. The inner wall of the reset groove 30 opposite to the third inclined surface 29 is inclined to form a fourth inclined surface 31. The fourth inclined surface 31 is used in conjunction with the third inclined surface 29. The trigger hole 25 is opened on the wall of the fixed plate 15. The trigger hole 25 corresponds to the trigger pin 24. The outer end of the trigger pin 24 slides out of the trigger hole 25 to trigger the sliding locking action of the sliding plate 16, the flipping horizontal guiding action of the mounting fixture 5, and the welding counting action.
[0073] Example 4:
[0074] like Figure 3-5As shown, there are four guide holes 19 in total. One of the guide holes 19 with a vertical line is provided with an inclined locking spring 32 on the outer peripheral wall of a trigger pin 24. When the locking spring 32 is compressed, the maximum distance between the outer wall of the trigger pin 24 and the outermost end of the locking spring 32 is less than the diameter of the trigger hole 25. When the locking spring 32 is in its natural state, the maximum distance between the outer wall of the trigger pin 24 and the outermost end of the locking spring 32 is greater than the diameter of the trigger hole 25. When the mounting bracket 3 needs to be flipped, push the drive handle 22 to make the sliding plate 16 slide along the fixed shaft 14 away from the mounting fixture 5. After the guide pin 21 is inserted into the guide hole 19, the guide pin 21 continues to be inserted, which will cause the second inclined surface 27 to press the first inclined surface 26, causing the trigger pin shaft 24 to move away from the guide pin 21 and insert into the trigger hole 25. Then the locking spring 32 is compressed. As the guide pin 21 is inserted deeper into the guide hole 19, the locking spring 32 of the trigger pin shaft 24 passes out of the trigger hole 25. Then the locking spring 32 resets and is locked at the outer end of the trigger hole 25, so that the sliding plate 16 stops sliding and maintains the sliding locking action. In this way, the mounting fixture 5 can be flipped with both hands and the horizontal positioning of the mounting fixture 5 after flipping can be achieved, which is convenient for operation.
[0075] Example 5:
[0076] like Figure 3-6 As shown, a counter button 33 is provided on the wall of the trigger hole 25 corresponding to the other guide hole 19 in the two vertically connected guide holes 19. When the counter button 33 is pressed, the counter counts. When the mounting bracket 3 needs to be flipped, the drive handle 22 is pushed to make the sliding plate 16 slide along the fixed shaft 14 away from the mounting fixture 5. After the guide pin 21 is inserted into the guide hole 19, the guide pin 21 continues to be inserted, which will cause the second inclined surface 27 to press against the first inclined surface 26, causing the trigger pin shaft 24 to move away from the guide pin 21 and insert into the trigger hole 25. The trigger pin shaft 24 presses against the counter button 33 in the trigger hole 25. So, every time the mounting fixture 5 is flipped, i.e., a circuit board is soldered, the counter counts once.
[0077] Example 6:
[0078] like Figure 7-8As shown, a laser lamp 34 is provided at the end of the trigger pin 24 corresponding to the two horizontally connected guide holes 19, and a lamp switch 35 is provided on the wall of the corresponding trigger hole 25. When the lamp switch 35 is pressed, the laser lamp 34 lights up. A horizontal mark 36 is correspondingly provided on the side of the mounting bracket 3, and the laser emitted by the laser lamp 34 is at the same height as the horizontal mark 36. When the mounting bracket 3 needs to be flipped, push the drive handle 22 to make the sliding plate 16 slide along the fixed shaft 14 away from the mounting fixture 5. After the guide pin 21 is inserted into the guide hole 19, the guide pin 21 continues to be inserted, which will cause the second inclined surface 27 to press against the first inclined surface 26. This will cause the trigger pin 24 to move away from the guide pin 21 and insert into the trigger hole 25. The trigger pin 24 will press against the light switch 35 in the trigger hole 25. Then the laser light 34 on the end of the trigger pin 24 that extends into the trigger hole 25 will be illuminated. When the laser lights 34 of the two horizontal guide holes 19 are exactly illuminating the horizontal mark 36, it means that the mounting bracket 3 has been flipped and is in a horizontal state. This can ensure the accuracy of the welding position.
[0079] A circuit board manufacturing process includes the following steps:
[0080] S1: Fabrication of ceramic substrate;
[0081] S2: Drill holes in the ceramic substrate to form holes for electroplating copper layers to conduct electricity to the circuit board;
[0082] S3: Form a magnesium alloy layer on the surface of the ceramic substrate so that the copper layer can better adhere to the surface of the ceramic substrate during the subsequent S5 step of copper plating.
[0083] S4: Degreasing treatment of magnesium alloy layer surface, solvents are: trichloroethylene, acetone, ethyl acetate and methyl ethyl ketone;
[0084] S5: Apply copper plating to the ceramic substrate, depositing a thin layer of chemical copper on the surface of the ceramic substrate and the hole walls to make the ceramic substrate conductive.
[0085] S6: Expose, develop, and etch the ceramic substrate, and then remove the excess copper and magnesium alloy layers;
[0086] S7: Welding: Install the circuit board on the mounting fixture 5, and weld the upper surface of the circuit board with the welding gun 2. After welding one side is completed, push the drive handle 22 to make the sliding disk 16 slide along the fixed shaft 14 away from the mounting fixture 5 so that the guide pin 21 is inserted into the guide hole 19. Continue to drag the drive handle 22 to completely disengage the first synchronous tooth 20 and the second synchronous tooth 23. Rotate the mounting fixture 5 to flip the mounting fixture 5. At the same time, the triggering structure can simultaneously trigger the sliding locking action of the sliding disk 16, the flipping horizontal guiding action of the mounting fixture 5, and the welding counting action.
[0087] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A circuit board manufacturing equipment, characterized in that... The assembly includes a base (1) and a welding torch (2). A mounting bracket (3) is provided on the base (1). The mounting bracket (3) is fixedly mounted on a support (4). The mounting bracket (3) is provided with: The mounting fixture (5) is used to clamp the circuit board. The mounting fixture (5) is open from top to bottom in the middle. The circuit board is placed in the open part. The welding gun (2) is used to weld the circuit board clamped on the mounting fixture (5). The shifting structure is set on the mounting fixture (5) to move the mounting fixture (5) so that the position to be soldered on the circuit board corresponds to the position of the soldering gun (2); A flipping structure (6) is provided between the mounting frame (3) and the bracket (4). The flipping structure (6) enables the mounting frame (3) to flip, and the welding torch (2) can be moved when the mounting frame (3) flips. The flipping structure (6) includes: A fixed shaft (14) is fixedly mounted on a bracket (4) and extends toward a mounting clamp (5); A fixed disk (15) is sleeved on the fixed shaft (14) and fixedly connected to the fixed shaft (14). A plurality of guide holes (19) are provided on the fixed disk (15) along the circumferential direction. The sliding disk (16) is slidably sleeved on the fixed shaft (14) and located on the side of the fixed disk (15) close to the mounting fixture (5). The sliding disk (16) is provided with a first synchronous tooth (20) at one end facing the mounting fixture (5). The other end face of the sliding disk (16) is fixedly provided with a guide pin (21) corresponding to the above-mentioned guide hole (19) along the circumferential direction. The sliding disk (16) can slide so that the guide pin (21) can be inserted into the corresponding guide hole (19). A drive handle (22) is provided on the outer periphery of the sliding disk (16). Rotary disk (17), the rotating disk (17) is rotatably sleeved on the fixed shaft (14), one end of the rotating disk (17) is fixedly connected to the mounting clamp (5), and the other end is provided with a second synchronous tooth (23) that can mesh with the first synchronous tooth (20) on the sliding disk (16). The return spring (18) is sleeved on the guide pin (21). The two ends of the return spring (18) abut against the end faces of the sliding disk (16) and the fixed disk (15) respectively. The return spring (18) always has the tendency to push the sliding disk (16) towards the rotating disk (17). The flipping structure (6) also includes a triggering structure, which can simultaneously trigger the sliding locking action of the sliding disk (16), the flipping horizontal guiding action of the mounting fixture (5), and the welding counting action; The triggering structure includes: Two trigger pins (24) are provided in each guide hole (19). The two trigger pins (24) are respectively located on both sides of the axis of the guide hole (19). The axis of the trigger pin (24) is perpendicular to the guide hole (19). The trigger pin (24) can slide along its own axis. The two ends of the two trigger pins (24) that are close to each other are inclined to form a first inclined surface (26). The guide pin (21) is positioned at the point where it enters the guide hole (19) and is aligned with the first inclined surface (26). 26) Corresponding to the second inclined surface (27), a reset component (28) extends outward from the outer wall of the guide pin (21). The reset component (28) is provided with a third inclined surface (29) parallel to the first inclined surface (26). The trigger pin (24) is provided with a reset groove (30) on the side facing the reset component (28). The inner wall of the reset groove (30) opposite to the third inclined surface (29) is inclined to form a fourth inclined surface (31). The fourth inclined surface (31) is used in conjunction with the third inclined surface (29). Trigger hole (25), the trigger hole (25) is opened on the wall of the fixed plate (15), the trigger hole (25) is corresponding to the trigger pin (24), the outer end of the trigger pin (24) slides out of the trigger hole (25) to trigger the sliding locking action of the sliding plate (16), the flipping horizontal guiding action of the mounting fixture (5) and the welding counting action; There are four guide holes (19). One of the guide holes (19) with two vertically connected guide holes (19) has an inclined locking spring (32) on the outer peripheral wall of a trigger pin (24). When the locking spring (32) is compressed, the maximum distance between the outer wall of the trigger pin (24) and the outermost end of the locking spring (32) is less than the diameter of the trigger hole (25). When the locking spring (32) is in its natural state, the maximum distance between the outer wall of the trigger pin (24) and the outermost end of the locking spring (32) is greater than the diameter of the trigger hole (25). A counter button (33) is provided on the wall of the trigger hole (25) corresponding to the other guide hole (19) in the two vertically connected guide holes (19). When the counter button (33) is pressed, the counter counts.
2. The circuit board manufacturing equipment according to claim 1, characterized in that, A laser lamp (34) is provided at the end of the trigger pin (24) corresponding to the two horizontally connected guide holes (19), and a lamp switch (35) is provided on the wall of the corresponding trigger hole (25). When the lamp switch (35) is pressed, the laser lamp (34) lights up. A horizontal mark (36) is correspondingly provided on the side of the mounting bracket (3). The laser emitted by the laser lamp (34) is at the same height as the horizontal mark (36).
3. The circuit board manufacturing equipment according to claim 2, characterized in that, The displacement structure includes a lateral sliding structure, which comprises: A slide (7) is slidably mounted on the mounting frame (3) along the lateral direction of the mounting frame (3); A transverse gear (8) is connected to the output end of a transverse motor (11), and the transverse gear (8) is rotatably mounted on a slide block (7); A rack (9) is arranged on the mounting frame (3) along the transverse direction of the mounting frame (3), and a transverse gear (8) meshes with the rack (9); The connecting rod (10) is fixedly connected to the slide (7), and the connecting rod (10) is fixedly connected to the mounting clamp (5) in the lateral direction of the mounting frame (3).
4. The circuit board manufacturing equipment according to claim 3, characterized in that, The displacement structure further includes a longitudinal sliding structure, the longitudinal sliding structure comprising: A longitudinal traverse motor (12) is fixedly connected to a slide block (7); The longitudinal lead screw (13) is parallel to the connecting rod (10) and is arranged along the longitudinal direction of the mounting frame (3). The longitudinal lead screw (13) is helically connected to the mounting clamp (5). The mounting clamp (5) is sleeved on the connecting rod (10) and can slide along the length direction of the connecting rod (10).
5. A circuit board manufacturing process for producing the circuit board manufacturing equipment described in claim 4, characterized in that, Includes the following steps: S1: Fabrication of ceramic substrate; S2: Drill holes in the ceramic substrate to form holes for electroplating copper layers to conduct electricity to the circuit board; S3: Form a magnesium alloy layer on the surface of the ceramic substrate so that the copper layer can better adhere to the surface of the ceramic substrate during the subsequent S5 step of copper plating. S4: Degreasing treatment of magnesium alloy layer surface, solvents are: trichloroethylene, acetone, ethyl acetate and methyl ethyl ketone; S5: Apply copper plating to the ceramic substrate, depositing a thin layer of chemical copper on the surface of the ceramic substrate and the hole walls to make the ceramic substrate conductive. S6: Expose, develop and etch the ceramic substrate, and then remove the excess copper and magnesium alloy layers; S7: Soldering: Install the circuit board on the mounting fixture (5), and weld the upper surface of the circuit board with the soldering gun (2). After the soldering is completed, push the drive handle (22) to make the sliding disk (16) slide along the fixed axis (14) away from the mounting fixture (5) so that the guide pin (21) is inserted into the guide hole (19). Continue to drag the drive handle (22) to completely disengage the meshing state of the first synchronous tooth (20) and the second synchronous tooth (23). Rotate the mounting fixture (5) to flip the mounting fixture (5). At the same time, the trigger structure can simultaneously trigger the sliding locking action of the sliding disk (16), the flipping horizontal guiding action of the mounting fixture (5) and the soldering counting action.