A circuit board welding fixture and circuit board welding system

Abstract

This utility model provides a circuit board welding fixture and a circuit board welding system, belonging to the field of circuit board manufacturing technology. The main body of the circuit board welding fixture has a placement position for placing the motherboard, and a pressure plate for pressing the motherboard. One side of the pressure plate is hinged to the main body. An auxiliary positioning structure is provided on one side of the placement position and is used to connect with an automatic welding device, allowing the main body to be fixed within the automatic welding equipment. This welding fixture can be fixed in the automatic welding equipment using the auxiliary positioning structure, thereby enabling automatic flux application and module welding, achieving automated circuit board production and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a circuit board welding fixture and circuit board welding system. Background Technology

[0002] Air conditioner control circuit boards consist of various electronic components, which need to be soldered onto the motherboard during production. In some existing air conditioner models, the soldering fixtures used for the control circuit boards cannot be effectively fixed to the soldering equipment. Therefore, manual soldering of various components onto the motherboard is required during production. This manual soldering method requires one person to insert the modules, three people to perform the soldering operations, and an additional person to apply flux, totaling five people to meet production efficiency requirements. Such a high labor input not only increases the company's labor costs but also limits further improvements in production efficiency. Furthermore, it is difficult to ensure uniform flux application during manual soldering, which negatively impacts the soldering effect. Moreover, the problem of solder balls and dross is prominent during manual module soldering, which not only affects the product's appearance but may also pose a potential threat to its performance and reliability, increasing the defect rate and subsequent quality inspection costs.

[0003] Therefore, it is necessary to improve the existing circuit board soldering fixtures to overcome the shortcomings of the existing technology. Utility Model Content

[0004] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a circuit board welding fixture. This welding fixture can be fixed in an automatic welding equipment using an auxiliary positioning structure, thereby enabling the automatic application of flux and module welding using the automatic welding equipment, realizing the automated production of circuit boards and improving the production efficiency of circuit boards.

[0005] A circuit board soldering fixture includes a main body, on which a placement position for placing a motherboard is provided, and on which a pressure plate for pressing the motherboard is also provided, one side of which is hinged to the main body.

[0006] The main body is provided with an auxiliary positioning structure, which is located on one side of the placement position. The auxiliary positioning structure is used to connect with an automatic welding equipment so that the main body can be fixed in the automatic welding equipment.

[0007] Specifically, the main body of the fixture is made of high-strength aluminum alloy, possessing excellent mechanical properties and corrosion resistance, and capable of withstanding the heat and mechanical stress generated during welding. The shape and structure of the placement position can be designed according to the shape and structure of the circuit board to ensure that the circuit board can be limited and fixed. The pressure plate can be made of aluminum alloy, with one side of the pressure plate hinged to the edge of the main body, allowing it to rotate freely around the hinge. A locking device, such as a threaded knob, is provided at the free end of the pressure plate. Tightening the knob can firmly press the pressure plate onto the motherboard, preventing the motherboard from shifting during welding.

[0008] In a preferred embodiment of this invention, the auxiliary positioning structure includes two clamping edges, which are disposed opposite to each other on opposite sides of the placement position, and each clamping edge is detachably connected to the main body.

[0009] In a preferred embodiment of this invention, the cross-section of the clamping edge is stepped, and the height of the clamping edge gradually increases from the edge of the placement position to the center.

[0010] In this embodiment, the clamping edge is divided into multiple steps, with the height of each step increasing sequentially to form a stepped structure. This design allows the fixture to be fixed by different welding equipment when placed in different welding systems, thus enhancing the adaptability of the fixture.

[0011] In a preferred embodiment of this invention, each clamping edge is further provided with a plurality of positioning grooves, which are arranged along the length direction of the clamping edge.

[0012] By incorporating positioning grooves on the clamping edges, the fixture can be more stably fixed to the connecting arm of the automatic welding equipment. This design effectively prevents the fixture from shaking and shifting during the welding process, improving welding stability and precision. Stable fixture fixation ensures that the module maintains a fixed position during welding, thereby improving welding accuracy and quality. It also reduces welding defects caused by fixture instability, such as solder balls and solder dross.

[0013] In a preferred embodiment of this utility model, the main body is provided with a guide rail, the guide rail is disposed on both sides opposite to the placement position, and the clamping edge is slidably disposed on the guide rail;

[0014] The clamping edge is also provided with a locking element, and the main body is provided with a locking groove that matches the clamping edge.

[0015] In another embodiment, the length direction of the guide rail is set along the width direction of the placement position.

[0016] In this embodiment, a guide rail is provided on each side of the main body, and the length direction of the guide rail is parallel to the width direction of the placement position. The clamping edge is mounted on the guide rail via a sliding mechanism and can slide along the length direction of the guide rail. Locking members are provided on both sides of the clamping edge, and the locking members can cooperate with the locking groove on the main body to fix the clamping edge in a specific position.

[0017] By sliding the clamping edge onto the guide rail, its position can be adjusted according to the size and shape of different equipment, improving the flexibility and adaptability of the tooling. This design better accommodates modules of different sizes and shapes, enhancing the versatility of the tooling. The clamping edge, through a locking mechanism that engages with a locking groove on the main body, can be securely fixed in a specific position, enhancing the stability of the tooling. This design effectively prevents the clamping edge from shaking and shifting during the welding process, improving welding stability and precision.

[0018] In a preferred embodiment of this utility model, the main body is further provided with a support strip, which spans across the placement position; the two opposite ends of the support strip are provided with connecting ends, which are detachably connected to the main body.

[0019] The support bar is provided with a clearance groove, and the length direction of the clearance groove is set along the length direction of the support bar.

[0020] The support bar is detachably connected to the main body via a connecting end. This design allows the support bar to be replaced or adjusted as needed, improving the flexibility and adaptability of the tooling. A clearance groove is provided in the middle of the support bar, parallel to its length, to avoid heat and welding spatter that may be generated during welding, protecting other parts of the tooling from damage. A stable support bar ensures the module remains in a fixed position during welding, thereby improving welding accuracy and quality. It also reduces welding defects caused by module instability, such as solder balls and dross.

[0021] In a preferred embodiment of this invention, the support bar is provided with a protruding section that protrudes outward toward one side of the main body, and a module accommodating space is formed between the protruding section and the placement position.

[0022] The module-accommodating space formed between the raised section and the placement position better secures the module, ensuring its stability during welding. This design effectively prevents module shaking and displacement during welding, improving welding stability and precision. The raised section design allows the tooling to better adapt to modules of different sizes and shapes, enhancing its versatility. By adjusting the position and shape of the raised section, the fixing requirements of different modules can be met.

[0023] In a preferred embodiment of this utility model, the main body is further provided with a buckle, the buckle is located at the edge of the placement position, and the buckle is pivotally connected to the main body via a connecting shaft; the connecting shaft is provided with a damping element for limiting the buckle.

[0024] The clip is pivotally connected to the main body via a connecting shaft and can rotate around the shaft. A damping element is installed on the connecting shaft to limit the clip's position, ensuring it remains stable when securing the module. The clip design firmly secures the module in its placement position, preventing displacement during soldering. The clip and damping element design effectively fix the circuit board, reducing soldering defects and tooling damage caused by circuit board instability, thus lowering maintenance costs. Furthermore, the detachable support bar design facilitates tooling maintenance, further reducing maintenance costs.

[0025] The second objective of this utility model is to provide a circuit board welding system, including welding equipment and circuit board welding fixtures as described above, wherein the circuit board welding fixtures are disposed in the welding equipment.

[0026] In a preferred embodiment of this invention, the welding equipment is provided with a conveyor line, and the circuit board welding fixture is detachably mounted on the conveyor line; the welding equipment is also provided with a coating mechanism, which includes a coating head, and the coating head is located below the conveyor line.

[0027] The coating head is used to apply flux to the circuit board on the tooling, thereby enabling automatic flux coating and reducing the cost of manual coating.

[0028] The beneficial effects of this utility model are as follows:

[0029] This utility model provides a circuit board welding fixture. The main body of the fixture has a placement position for placing the motherboard, and a pressure plate for clamping the motherboard. One side of the pressure plate is hinged to the main body. An auxiliary positioning structure is provided on one side of the placement position and is used to connect with an automatic welding device, allowing the main body to be fixed within the device. During use, the fixture is placed on the worktable of the automatic welding device. The auxiliary positioning structure, in conjunction with the connecting arm of the automatic welding device, securely fixes the fixture body within the device, enabling the welding robot to accurately weld the motherboard placed in the placement position. The motherboard to be welded is then placed in the placement position of the fixture, and the pressure plate clamps it to ensure it does not shift during welding. The automatic welding device is started; the robotic arm first automatically applies flux and then welds the motherboard according to a preset welding path. After welding, the pressure plate is released, and the welded motherboard is removed, completing the entire welding process. This fixture can be fixed in an automatic welding equipment using an auxiliary positioning structure to achieve automatic flux application and module welding. The entire welding process requires no manual intervention, which greatly improves welding efficiency. Furthermore, the automatic welding equipment can precisely control the amount and position of flux application, ensuring uniform flux application, thereby improving welding quality and reducing weld defects.

[0030] This application also provides a circuit board welding system including the above-mentioned circuit board welding fixture. The welding system can use the above-mentioned circuit board welding fixture to realize the automatic application of flux and the automated welding of modules during the welding of circuit boards, thereby improving the production efficiency of circuit boards and reducing production costs. Attached Figure Description

[0031] Figure 1 This is a first perspective view of the circuit board welding fixture provided in an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A top view of the circuit board soldering fixture;

[0033] Figure 3 yes Figure 1 Side view of the circuit board soldering fixture;

[0034] Figure 4 yes Figure 1 A bottom view of the circuit board soldering fixture;

[0035] Figure 5 This is a second perspective view of the circuit board soldering fixture provided in an embodiment of the present invention;

[0036] Figure 6This is a schematic diagram of a guide rail provided on the main body in an embodiment of the present invention.

[0037] Figure label:

[0038] 1. Main body; 11. Guide rail; 2. Placement position; 3. Pressure plate; 4. Clamping edge; 5. Buckle; 51. Connecting shaft; 6. Support bar; 61. Protruding section; 62. Clearance groove. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0040] Air conditioner control circuit boards consist of various electronic components, which need to be soldered onto the motherboard during production. In some existing air conditioner models, the soldering fixtures used for the control circuit boards cannot be effectively fixed to the soldering equipment. Therefore, manual soldering of various components onto the motherboard is required during production. This manual soldering method requires one person to insert the modules, three people to perform the soldering operations, and an additional person to apply flux, totaling five people to meet production efficiency requirements. Such a high labor input not only increases the company's labor costs but also limits further improvements in production efficiency. Furthermore, it is difficult to ensure uniform flux application during manual soldering, which negatively impacts the soldering effect. Moreover, the problem of solder balls and dross is prominent during manual module soldering, which not only affects the product's appearance but may also pose a potential threat to its performance and reliability, increasing the defect rate and subsequent quality inspection costs.

[0041] Based on this, this application provides a circuit board soldering fixture.

[0042] Example 1

[0043] like Figures 1-6 As shown, this embodiment provides a circuit board soldering fixture, including a main body 1, a placement position 2 for placing a motherboard on the main body 1, and a pressure plate 3 for pressing the motherboard on the main body 1, one side of the pressure plate 3 being hinged to the main body 1.

[0044] The main body 1 is provided with an auxiliary positioning structure, which is located on one side of the placement position 2. The auxiliary positioning structure is used to connect with the automatic welding equipment so that the main body 1 can be fixed in the automatic welding equipment.

[0045] Specifically, the main body 1 of the fixture is made of high-strength aluminum alloy, possessing excellent mechanical properties and corrosion resistance, and capable of withstanding the heat and mechanical stress generated during welding. The shape and structure of the placement position 2 can be designed according to the shape and structure of the circuit board to ensure that the circuit board can be limited and fixed. The pressure plate 3 can be made of aluminum alloy, and one side of the pressure plate 3 is hinged to the edge of the main body 1, allowing it to rotate freely around the hinge. A locking device, such as a threaded knob, is provided at the free end of the pressure plate 3. By tightening the knob, the pressure plate 3 can be firmly pressed onto the motherboard, preventing the motherboard from shifting during welding.

[0046] During use, this welding fixture is placed on the worktable of the automatic welding equipment. Through the cooperation of the auxiliary positioning structure and the connecting arm of the automatic welding equipment, the main body 1 of the fixture is firmly fixed in the equipment, allowing the welding robot to accurately perform welding operations on the motherboard placed in position 2. The motherboard to be welded is then placed in position 2 of the fixture, and the pressure plate 3 is used to press the motherboard firmly, ensuring that it does not shift during welding. The automatic welding equipment is started; the robotic arm first automatically applies flux, and then welds the motherboard according to the preset welding path. After welding is completed, the pressure plate 3 is released, and the welded motherboard is removed, completing the entire welding process. This fixture can be fixed in the automatic welding equipment using an auxiliary positioning structure, realizing automatic flux application and module welding. The entire welding process requires no manual intervention, greatly improving welding efficiency. Furthermore, the automatic welding equipment can precisely control the amount and position of flux application, ensuring uniform flux application, thereby improving welding quality and reducing solder joint defects.

[0047] Example 2

[0048] This embodiment is an improvement on embodiment 1.

[0049] like Figures 1-6 As shown, this embodiment provides a specific implementation of an auxiliary positioning structure. The details are as follows:

[0050] The auxiliary positioning structure includes two clamping edges 4, which are arranged opposite to each other on the opposite sides of the placement position 2, and each clamping edge 4 is detachably connected to the main body 1.

[0051] Specifically, the clamping edge 4 is elongated, with its length parallel to the length of the placement position 2. The width and thickness of the clamping edge 4 are designed according to actual needs to ensure sufficient mechanical strength and stability. Specifically, each clamping edge 4 is detachably connected to the main body 1 via multiple connectors. These connectors can be bolts, nuts, clips 5, etc., the specific selection depending on actual requirements. For example, each clamping edge 4 can be connected to the main body 1 via four bolts, with the bolts evenly distributed along the length of the clamping edge 4.

[0052] Example 3

[0053] This embodiment is an improvement on embodiment 2.

[0054] like Figures 1-6 As shown, in this embodiment, the cross-section of the clamping edge 4 is stepped, and the height of the clamping edge 4 gradually increases from the edge of the placement position 2 to the center.

[0055] In this embodiment, the clamping edge 4 is divided into multiple steps, with the height of each step increasing sequentially to form a stepped structure. This design allows the fixture to be fixed by different welding equipment when placed in different welding systems, thus enhancing its adaptability. The surface of the clamping edge 4 undergoes special treatment to improve its wear resistance and anti-slip properties. For example, the surface of the clamping edge 4 can be anodized to form a hard oxide film, improving its wear resistance and corrosion resistance.

[0056] More preferably, in this embodiment, each of the clamping edges 4 is further provided with a plurality of positioning grooves, and the plurality of positioning grooves are provided on the clamping edge 4 along the length direction of the clamping edge 4.

[0057] By providing positioning grooves on clamping edge 4, the fixture can be more stably fixed to the connecting arm of the automatic welding equipment. This design effectively prevents the fixture from shaking and shifting during the welding process, improving welding stability and accuracy. Stable fixture fixation ensures that the module maintains a fixed position during welding, thereby improving welding accuracy and quality. It also reduces welding defects caused by fixture instability, such as solder balls and solder dross.

[0058] In a specific implementation, the positioning groove is rectangular or semi-circular in shape, with the specific shape designed according to the shape of the positioning protrusion on the connecting arm of the automatic welding equipment. The long side of the rectangular groove is parallel to the length direction of the clamping edge 4, and the diameter direction of the semi-circular groove is parallel to the length direction of the clamping edge 4. The dimensions of the positioning groove are designed according to the dimensions of the positioning protrusion to ensure a good fit. For example, the length of the rectangular groove can be 10mm and the width can be 5mm; the diameter of the semi-circular groove can be 10mm.

[0059] Specifically, the diameter of the semi-circular groove is parallel to the length of the clamping edge 4. This type of groove has good symmetry and uniform stress distribution, and can adapt to positioning protrusions of different shapes.

[0060] Example 4

[0061] This embodiment is an improvement on embodiment 2.

[0062] like Figures 1-6 As shown, in this embodiment, the main body 1 is provided with a guide rail 11, the guide rail 11 is provided on both sides opposite to the placement position 2, and the clamping edge 4 is slidably disposed on the guide rail 11.

[0063] The clamping edge 4 is also provided with a locking element, and the main body 1 is provided with a locking groove that matches the clamping edge 4.

[0064] In another embodiment, the length direction of the guide rail 11 is arranged along the width direction of the placement position 2.

[0065] In this embodiment, a guide rail 11 is provided on each side of the main body 1, and the length direction of the guide rail 11 is parallel to the width direction of the placement position 2. The clamping edge 4 is mounted on the guide rail 11 by a sliding mechanism and can slide along the length direction of the guide rail 11. Locking members are provided on both sides of the clamping edge 4, and the locking members can cooperate with the locking groove on the main body 1 to fix the clamping edge 4 in a specific position.

[0066] By sliding the clamping edge 4 onto the guide rail 11, its position can be adjusted according to the size and shape of different equipment, improving the flexibility and adaptability of the tooling. This design better accommodates modules of different sizes and shapes, enhancing the versatility of the tooling. The clamping edge 4, through a locking mechanism engaging with a locking groove on the main body 1, can be securely fixed in a specific position, enhancing the stability of the tooling. This design effectively prevents the clamping edge 4 from shaking and shifting during the welding process, improving the stability and precision of the welding.

[0067] In practical applications, two guide rails 11 can be set on each side of the placement position 2 to ensure that the guide rails 11 can effectively limit the clamping edge 4 and at the same time ensure the stability of the movement of the clamping edge 4.

[0068] Example 5

[0069] This embodiment is an improvement on embodiment 1.

[0070] like Figures 1-6As shown, in this embodiment, the main body 1 is also provided with a support bar 6, which spans across the placement position 2; the two opposite ends of the support bar 6 are provided with connecting ends, which are detachably connected to the main body 1.

[0071] The support bar 6 is provided with a clearance groove 62, and the length direction of the clearance groove 62 is set along the length direction of the support bar 6.

[0072] The support bar 6 is detachably connected to the main body 1 via a connecting end. This design allows the support bar 6 to be replaced or adjusted as needed, improving the flexibility and adaptability of the tooling. A clearance groove 62 is provided in the middle of the support bar 6, with its length parallel to the length of the support bar 6. This groove is used to avoid heat and welding spatter that may be generated during welding, protecting other parts of the tooling from damage. The stable support bar 6 ensures that the module maintains a fixed position during welding, thereby improving welding accuracy and quality. It also reduces welding defects caused by module instability, such as solder balls and solder dross.

[0073] More preferably, in this embodiment, the support bar 6 is provided with a protruding section 61, the protruding section 61 protrudes outward toward one side of the main body 1, and a module accommodating space is formed between the protruding section 61 and the placement position 2.

[0074] The module accommodating space formed between the protruding section 61 and the placement position 2 better secures the module, ensuring its stability during welding. This design effectively prevents module shaking and displacement during welding, improving welding stability and precision. The design of the protruding section 61 allows the tooling to better adapt to modules of different sizes and shapes, enhancing its versatility. By adjusting the position and shape of the protruding section 61, the fixing requirements of different modules can be met.

[0075] In this embodiment, in addition to fixing the motherboard and sub-modules, some larger electronic components (such as capacitors, inductors, chips, etc.) also need to be fixed during the soldering process. The module accommodating space between the protrusion 61 and the placement position 2 can provide additional support and fixation, ensuring that these components remain stable during the soldering process. For applications such as medical devices and industrial control equipment, some larger electronic components need to be fixed during the soldering process to ensure the accuracy and quality of the soldering.

[0076] Example 6

[0077] like Figures 1-6As shown, this embodiment is an improvement on embodiment 1. In this embodiment, the main body 1 is further provided with a buckle 5, the buckle 5 is located at the edge of the placement position 2, and the buckle 5 is pivotally connected to the main body 1 via a connecting shaft 51; the connecting shaft 51 is provided with a damping member for limiting the buckle 5.

[0078] The latch 5 is pivotally connected to the main body 1 via a connecting shaft 51 and can rotate around the connecting shaft 51. A damping element is provided on the connecting shaft 51 to limit the latch 5, ensuring it maintains a stable position when fixing the module. The design of the latch 5 allows the module to be firmly fixed in the placement position 2, preventing displacement during welding. The design of the latch 5 and the damping element better secures the circuit board, reducing welding defects and tooling damage caused by circuit board instability, and lowering maintenance costs. Simultaneously, the detachable support bar 6 design makes tooling maintenance more convenient, further reducing maintenance costs. The stability of the damping element effectively prevents the latch 5 from accidentally loosening due to external forces, enhancing operational safety.

[0079] Example 7

[0080] like Figures 1-6 As shown, this embodiment provides a circuit board welding system, including welding equipment and the circuit board welding fixture described above, wherein the circuit board welding fixture is disposed in the welding equipment.

[0081] In this embodiment, the welding equipment is provided with a conveyor line, and the circuit board welding fixture is detachably mounted on the conveyor line; the welding equipment is also provided with a coating mechanism, which includes a coating head, and the coating head is located below the conveyor line.

[0082] The coating head is used to apply flux to the circuit board on the tooling, thereby enabling automatic flux coating and reducing the cost of manual coating.

[0083] The system includes a conveyor line, a coating mechanism, and a welding mechanism. In actual use, the circuit board welding fixture is placed on the conveyor line of the welding equipment. The fixture cooperates with the connecting arm on the conveyor line through an auxiliary positioning structure to ensure accurate positioning and fixation of the fixture on the conveyor line.

[0084] Place the circuit board to be soldered on the placement position 2 of the fixture, ensuring that the shape and size of the circuit board match the placement position 2 and that the circuit board can be stably placed on the placement position 2. Hinge one side of the pressure plate 3 to the edge of the main body 1, pressing the free end of the pressure plate 3 onto the circuit board, and firmly press the pressure plate 3 onto the circuit board using a locking device (such as a threaded knob) to prevent the circuit board from shifting during soldering. Place the circuit board-related sub-modules into the module receiving space between the support bar 6 and the placement position 2, and further secure them using the buckles 5.

[0085] The conveyor line transports the tooling to the coating mechanism. The coating head of the coating mechanism applies flux evenly to the circuit board according to preset parameters and the board's shape. The nozzle of the coating head can be adjusted according to the shape and size of the circuit board to ensure uniform flux application. The coating process is automatically controlled by a control system to ensure accurate and stable coating amounts. The conveyor line then transports the tooling to the welding mechanism. The welding head of the welding mechanism welds the circuit board according to preset welding parameters (such as welding temperature and welding time).

[0086] During the welding process, the control system monitors various parameters in real time through sensors and feedback mechanisms, automatically adjusts the operating status of the welding equipment, and ensures the stability and consistency of the welding.

[0087] After welding is completed, the conveyor line transports the fixture to the unloading position. The worker removes the welded circuit board from the fixture and returns it to the starting position of the conveyor line, ready for the next welding operation.

[0088] This system reduces manual operation steps and time, and improves production efficiency through automated conveyor lines and automated coating mechanisms. Automated welding and real-time monitoring by the control system ensure efficient and stable welding processes.

[0089] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, 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. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is 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.

[0090] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0091] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A circuit board soldering fixture, comprising a main body (1), wherein the main body (1) is provided with a placement position (2) for placing a motherboard, and the main body (1) is further provided with a pressure plate (3) for pressing the motherboard, one side of the pressure plate (3) being hinged to the main body (1), characterized in that: An auxiliary positioning structure is provided on the main body (1), and the auxiliary positioning structure is located on one side of the placement position (2). The auxiliary positioning structure is used to connect with the automatic welding equipment so that the main body (1) can be fixed in the automatic welding equipment.

2. The circuit board soldering fixture according to claim 1, characterized in that: The auxiliary positioning structure includes two clamping edges (4), which are arranged opposite to each other on the opposite sides of the placement position (2), and each clamping edge (4) is detachably connected to the main body (1).

3. The circuit board soldering fixture according to claim 2, characterized in that: The cross-section of the clamping edge (4) is stepped, and the height of the clamping edge (4) gradually increases from the edge of the placement position (2) to the center.

4. The circuit board soldering fixture according to claim 2, characterized in that: Each of the clamping edges (4) is also provided with a plurality of positioning grooves, which are arranged on the clamping edge (4) along the length direction of the clamping edge (4).

5. The circuit board soldering fixture according to any one of claims 2-4, characterized in that: The main body (1) is provided with a guide rail (11), the guide rail (11) is provided on both sides opposite to the placement position (2), and the clamping edge (4) is slidably provided on the guide rail (11); The clamping edge (4) is also provided with a locking member, and the main body (1) is provided with a locking groove that is compatible with the clamping edge (4).

6. The circuit board soldering fixture according to any one of claims 1-4, characterized in that: The main body (1) is also provided with a support strip (6), which spans across the placement position (2); the two opposite ends of the support strip (6) are provided with connecting ends, which are detachably connected to the main body (1); The support bar (6) is provided with a clearance groove (62), and the length direction of the clearance groove (62) is arranged along the length direction of the support bar (6).

7. The circuit board soldering fixture according to claim 6, characterized in that: The support bar (6) is provided with a protruding section (61), which protrudes outward toward one side of the main body (1), and forms a module accommodating space between the protruding section (61) and the placement position (2).

8. The circuit board soldering fixture according to claim 1, characterized in that: The main body (1) is also provided with a buckle (5), which is located at the edge of the placement position (2) and is pivotally connected to the main body (1) via a connecting shaft (51); the connecting shaft (51) is provided with a damping element for limiting the buckle (5).

9. A circuit board soldering system, characterized in that: It includes welding equipment and a circuit board welding fixture as described in any one of claims 1-8, wherein the circuit board welding fixture is disposed in the welding equipment.

10. The circuit board soldering system according to claim 9, characterized in that: The welding equipment is equipped with a conveyor line, and the circuit board welding fixture is detachably mounted on the conveyor line; the welding equipment is also equipped with a coating mechanism, which includes a coating head, and the coating head is located below the conveyor line.

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