Welding tool capable of automatically opening and closing cover and circuit board production line

Abstract

The utility model provides a welding tool capable of automatically opening and closing a cover and a circuit board production line, and belongs to the technical field of circuit board production devices, the welding tool capable of opening and closing the cover comprises a base body and a driving system, the base body is provided with a placing position and a cover plate, and the cover plate is hinged with the base body. A rotating shaft is arranged on the driving system, a mounting hole is formed in the cover plate, the rotating shaft is matched with the mounting hole, and the rotating shaft drives the cover plate to rotate when rotating. According to the tool, the cover plate can be driven to be automatically opened or closed through the driving system, the steps of manual operation during welding can be reduced, and therefore the production takt time can be shortened, and the production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing device technology, and in particular to an automatic opening and closing cover welding fixture and circuit board production line. Background Technology

[0002] In the production process of air conditioner controller motherboards, the components of the motherboard need to be soldered to secure and conduct electricity, and the soldering process plays a crucial role in securing and conducting these components. To ensure the quality of component soldering, operations must be performed under the positioning of standard soldering fixtures. These fixtures typically consist of cover plates, height-fixing columns, and height-fixing strips, achieving motherboard positioning through a standardized design and using the height-fixing columns within the fixture to unify component heights. Currently, when using these soldering fixtures, before soldering, the cover plate needs to be manually pressed to secure the components, and after soldering, the cover needs to be manually removed. Because the cover plate of the soldering fixture is made of metal and is quite heavy, separating the cover plate from the fixture is extremely labor-intensive. Moreover, this manual operation is time-consuming, severely impacting production efficiency. With the continuous expansion of production scale and the increasing demands for production efficiency, the existing manual operation methods are no longer sufficient to meet actual production needs.

[0003] Therefore, it is necessary to improve the existing welding fixtures to overcome the shortcomings of the existing technology. Summary of the Invention

[0004] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a welding fixture for automatically opening and closing a cover. This fixture can use a drive system to drive the cover plate to open or close automatically, which can reduce the number of manual operation steps during welding, thereby shortening the production cycle and improving production efficiency.

[0005] A welding fixture for automatically opening and closing a cover includes:

[0006] A substrate, wherein a placement position and a cover plate are provided on the substrate, and the cover plate is hinged to the substrate;

[0007] A drive system is provided, wherein a rotating shaft is provided on the drive system, and a mounting hole is provided on the cover plate. The rotating shaft is adapted to the mounting hole, and the rotating shaft drives the cover plate to rotate when it rotates.

[0008] In traditional welding fixtures, manual opening and closing of the cover plate is not only time-consuming and labor-intensive, but also prone to disrupting normal production rhythm due to worker fatigue. This application achieves automatic opening and closing of the cover plate through a drive system, eliminating the need for strenuous operation by workers and greatly reducing labor intensity; it also avoids direct contact between workers and the heavy cover plate, thereby reducing the occurrence of accidents. Furthermore, the drive system for closing the cover plate significantly improves production efficiency.

[0009] In a preferred embodiment of this utility model, the driving system includes a first driving structure and a second driving structure. The first driving structure is disposed on one side of the base, and a mounting base is disposed at the output end of the first driving structure. The first driving structure drives the mounting base to move closer to or away from the base.

[0010] The rotating shaft is rotatably mounted on the mounting base, the second drive structure is fixed on the mounting base, and the output end of the second drive structure is connected to the rotating shaft. The second drive structure is used to drive the rotating shaft to rotate.

[0011] In a preferred embodiment of this utility model, a gear is fixed on the rotating shaft, and a rack is provided at the output end of the second drive structure, the rack meshing with the gear;

[0012] The second drive structure drives the rack to move, thereby causing the gear to rotate.

[0013] In this embodiment, the position of the mounting base is controlled by the first drive structure, enabling precise adjustment of the mating position between the rotating shaft and the cover plate mounting hole. For example, in high-precision circuit board soldering scenarios, this ensures the rotating shaft is accurately inserted into the mounting hole, avoiding jamming or damage due to positional deviations. The second drive structure utilizes rack and pinion transmission to precisely control the rotation angle and speed of the rotating shaft. In production processes with strict requirements on soldering time and cover plate opening / closing angle, the rotation angle of the rotating shaft can be precisely controlled, and the speed can be precisely adjusted within a certain range according to actual needs, achieving precise control of the cover plate opening and closing action and meeting the requirements of different production processes. Compared to the traditional manual opening and closing of the cover plate, the automated operation of this drive system significantly shortens the opening and closing time.

[0014] In a preferred embodiment of this invention, a bearing is provided on the mounting base, and one end of the rotating shaft is fixedly connected to the bearing.

[0015] The bearings mounted on the mounting base significantly reduce frictional resistance during shaft rotation. These bearings provide precise support for the shaft, effectively ensuring its rotational accuracy. In welding fixtures, this ensures the cover plate maintains a stable rotational trajectory during opening and closing, preventing wobbling or misalignment. For example, during circuit board soldering, if the cover plate wobbles, the circuit board placed on the substrate may shift, affecting soldering quality. A stably rotating cover plate ensures the circuit board remains in the correct position throughout the soldering process, improving soldering consistency and yield, and reducing product defect rates due to soldering position deviations.

[0016] In a preferred embodiment of this invention, the second drive structure is a servo motor, and the output end of the servo motor is fixedly connected to the rotating shaft.

[0017] In this embodiment, the output end of the servo motor is directly fixedly connected to the rotating shaft, thereby using the servo motor to drive the cover plate to close.

[0018] In a preferred embodiment of this invention, the cross-section of the mounting hole is polygonal or star-shaped.

[0019] The hexagonal mounting holes, when fitted to the shaft, effectively avoid the slippage that often occurs with traditional circular mounting holes when transmitting torque. Polygonal or star-shaped mounting holes offer a clear positioning direction during installation, providing higher positioning accuracy compared to circular holes. In welding operations, this high-precision positioning ensures consistent pressure on the circuit board each time the cover plate is closed, preventing errors in the circuit board's welding position due to positional deviations, thereby improving welding quality and reducing product defect rates.

[0020] In a preferred embodiment of this invention, a pressure sensor is provided on the substrate, and the pressure sensor is located below the cover plate.

[0021] Pressure sensors are used to detect the pressure applied when a cover plate is pressed down. During circuit board soldering, different circuit boards and soldering processes have specific pressure requirements. The pressure data from the pressure sensor allows for timely adjustments to the drive system, ensuring the cover plate pressing pressure remains stable within a suitable range. Insufficient pressure leads to inadequate contact between the circuit board and the soldering area, resulting in poor solder joints; excessive pressure can damage electronic components on the circuit board. Using a pressure sensor reduces the likelihood of poor solder joints and component damage, effectively improving soldering quality.

[0022] In practical applications, the pressure sensor transmits the detected pressure signal to the control system (such as a PLC). The control system automatically controls the drive system's actions based on the preset pressure value. When the pressure sensor detects that the pressure of the cover plate pressing down has not reached the set value, the control system controls the second drive structure to continue driving the cover plate downwards; when the pressure reaches the set value, the control system issues a command to stop the drive system. This achieves automated pressure control during the opening and closing process of the welding fixture, significantly improving efficiency and providing more precise and stable operation compared to traditional manual pressure judgment.

[0023] In a preferred embodiment of this invention, a height-limiting column is provided on the substrate, and the height-limiting column corresponds to the cover plate.

[0024] Height-limiting posts effectively restrict the downward pressure of cover plates. During circuit board soldering, excessive downward pressure from the cover plate can damage electronic components on the circuit board. The specific height design of the height-limiting posts ensures that the downward pressure distance of the cover plate during normal operation does not exceed the tolerance range of the components, greatly protecting the electronic components on the circuit board and improving product yield.

[0025] The second objective of this utility model is to provide a circuit board production line, including a conveyor line, on which welding fixtures for automatic opening and closing of covers as described above are provided.

[0026] In a preferred embodiment of this invention, the substrate is detachably mounted on the conveyor line, the drive system is mounted on one side of the conveyor line, and a positioning sensor is also mounted on the edge of the conveyor line, with the positioning sensor located on one side of the drive system.

[0027] In this embodiment, the substrate is detachably mounted on the conveyor line, facilitating the replacement of welding fixtures of different specifications according to production needs. Circuit boards are placed on the substrate. When the substrate is delivered to the positioning sensor, the sensor sends a signal to the control system. The control system then controls the drive system to automatically close the cover plate, allowing for the next step of component placement and welding. This circuit board production line effectively improves the efficiency of circuit board welding and reduces labor costs.

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

[0029] This utility model provides an automatic opening and closing cover welding fixture, which includes a base and a drive system. The base has a placement position and a cover plate, with the cover plate hinged to the base. The drive structure has a rotating shaft, and the cover plate has mounting holes. The rotating shaft matches the mounting holes, and rotation of the shaft drives the cover plate to rotate. This fixture uses the drive system to automatically open or close the cover plate, thereby reducing manual operation, shortening the production cycle, and improving production efficiency. During use, the main board is placed in the placement position, and then the cover plate is pressed onto the base, allowing the cover plate to fix the main board, facilitating welding operations and ensuring the main board does not move during welding. Furthermore, the closing of the cover plate is achieved using the drive system, eliminating the need for manual intervention, reducing the labor intensity of workers, lowering the probability of workplace injuries, and improving production efficiency, effectively shortening the production cycle.

[0030] This application also provides a circuit board production line including the above-mentioned automatic opening and closing cover welding fixture. In the process of circuit board production, the production line uses a drive system to automatically drive the cover to close, which can improve the welding efficiency of circuit board components, save production time, and thus reduce production costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the welding fixture for the automatic opening and closing cover provided in an embodiment of this utility model;

[0032] Figure 2 This is a perspective view of the drive system provided in an embodiment of this utility model;

[0033] Figure 3 This is a side view of the drive system provided in an embodiment of this utility model;

[0034] Figure 4 This is a schematic diagram of the drive system and cover plate cooperating in an embodiment of this utility model;

[0035] Figure 5 yes Figure 4 Side view;

[0036] Figure 6 This is a schematic diagram of the servo motor and the cover plate in an embodiment of this utility model.

[0037] Figure 7 This is a schematic diagram of a circuit board production line provided in an embodiment of this utility model.

[0038] Figure label:

[0039] 1. Base; 11. Cover plate; 12. Placement position; 2. Drive system; 21. First drive structure; 22. Second drive structure; 23. Mounting base; 24. Rotating shaft; 25. Bearing; 26. Gear; 27. Rack; 28. Servo motor; 100. Conveyor line; 110. Position sensor. Detailed Implementation

[0040] 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.

[0041] In the production process of air conditioner controller motherboards, the components of the motherboard need to be soldered to secure and conduct electricity, and the soldering process plays a crucial role in securing and conducting these components. To ensure the quality of component soldering, operations must be performed under the positioning of standard soldering fixtures. These fixtures typically consist of cover plates, height-fixing columns, and height-fixing strips, achieving motherboard positioning through a standardized design and using the height-fixing columns within the fixture to unify component heights. Currently, when using these soldering fixtures, before soldering, the cover plate needs to be manually pressed to secure the components, and after soldering, the cover needs to be manually removed. Because the cover plate of the soldering fixture is made of metal and is quite heavy, separating the cover plate from the fixture is extremely labor-intensive. Moreover, this manual operation is time-consuming, severely impacting production efficiency. With the continuous expansion of production scale and the increasing demands for production efficiency, the existing manual operation methods are no longer sufficient to meet actual production needs.

[0042] Based on this, this application provides a welding fixture for automatically opening and closing a cover.

[0043] Example 1

[0044] like Figures 1-6 As shown, this embodiment provides a welding fixture for automatically opening and closing a cover, comprising:

[0045] A base 1, on which a placement position 12 and a cover plate 11 are provided, and the cover plate 11 is hinged to the base 1;

[0046] The drive system 2 is provided with a rotating shaft 24 and a mounting hole is provided on the cover plate 11. The rotating shaft 24 is adapted to the mounting hole, and the rotating shaft 24 drives the cover plate 11 to rotate when it rotates.

[0047] In traditional welding fixtures, manually opening and closing the cover plate 11 is not only time-consuming and labor-intensive, but also prone to disrupting normal production rhythm due to worker fatigue. This application achieves automatic opening and closing of the cover plate 11 through the drive system 2, eliminating the need for strenuous operation by workers and significantly reducing labor intensity; it also avoids direct contact between workers and the heavy cover plate 11, thereby reducing the occurrence of accidents. Furthermore, the use of the drive system 2 to close and close the cover plate 11 greatly improves production efficiency.

[0048] More specifically, the cross-section of the mounting hole is polygonal or star-shaped.

[0049] The hexagonal mounting holes, when fitted with the rotating shaft 24, effectively avoid the slippage that easily occurs when transmitting torque with traditional circular mounting holes. Polygonal or star-shaped mounting holes offer a clear positioning direction during installation, providing higher positioning accuracy compared to circular mounting holes. In welding operations, this high-precision positioning ensures that the cover plate 11 consistently presses against the circuit board each time it is closed, preventing errors in the circuit board's welding position due to positional deviations, thereby improving welding quality and reducing the product defect rate.

[0050] In a preferred embodiment, the substrate 1 is made of high-strength aluminum alloy, which is lightweight, high-strength, and has good thermal conductivity. The cover plate 11 is made of lightweight but high-strength carbon fiber composite material, which ensures sufficient strength to fix the motherboard while reducing its own weight. The cover plate 11 is hinged to the substrate 1 by stainless steel hinges with a thickness of 3mm, ensuring smooth opening and closing and a firm connection. Mounting holes are provided on the cover plate 11 corresponding to the position of the rotating shaft 24. The cross-section of the mounting holes is designed as regular hexagons. This shape ensures a tight fit between the rotating shaft 24 and the mounting holes, preventing slippage during rotation and effectively transmitting torque. A buffer pad made of rubber with a thickness of 5mm is also provided on the inner side of the cover plate 11, which provides cushioning when the cover plate 11 is closed, preventing damage to the motherboard.

[0051] Example 2

[0052] This embodiment is an improvement on embodiment 1.

[0053] like Figures 1-6 As shown, in this embodiment, the driving system 2 includes a first driving structure 21 and a second driving structure 22. The first driving structure 21 is disposed on one side of the base 1, and a mounting base 23 is disposed at the output end of the first driving structure 21. The first driving structure 21 drives the mounting base 23 to move closer to or away from the base 1.

[0054] The rotating shaft 24 is rotatably mounted on the mounting base 23, the second driving structure 22 is fixed on the mounting base 23, and the output end of the second driving structure 22 is connected to the rotating shaft 24. The second driving structure 22 is used to drive the rotating shaft 24 to rotate.

[0055] In this embodiment, a gear 26 is fixed on the rotating shaft 24, and a rack 27 is provided at the output end of the second drive structure 22, the rack 27 meshing with the gear 26;

[0056] The second drive structure 22 drives the rack 27 to move, thereby driving the gear 26 to rotate.

[0057] In this embodiment, the specific working process is as follows:

[0058] When the automatic opening and closing cover welding fixture needs to operate, the first drive structure 21 is activated first. Taking a common electric push rod as the first drive structure 21 as an example, after the electric push rod is powered on, its internal motor drives the lead screw to rotate. The lead screw drives the nut to move on the lead screw, and the nut is connected to the mounting base 23, thereby pushing the mounting base 23 closer to the base 1 along the set direction. At this time, the rotating shaft 24 on the mounting base 23 gradually approaches the mounting hole on the cover plate 11. When the rotating shaft 24 is accurately inserted into the mounting hole, the first drive structure 21 stops operating, completing the position adjustment.

[0059] Next, the second drive structure 22 begins to operate. Assuming the second drive structure 22 is a motor, when the motor is powered on and started, its output shaft drives the rack 27 to move linearly. Since the rack 27 meshes with the gear 26 fixed on the rotating shaft 24, according to the transmission principle of the gear 26 and rack 27, the linear motion of the rack 27 is converted into the circular motion of the gear 26, which in turn drives the rotating shaft 24 to rotate. Because the rotating shaft 24 and the cover plate 11 are tightly fitted through the mounting hole, the rotation of the rotating shaft 24 drives the cover plate 11 to rotate around the hinge point with the base 1, realizing the opening or closing action of the cover plate 11. After the welding work is completed, the second drive structure 22 drives the rack 27 to move in the opposite direction, causing the gear 26 and the rotating shaft 24 to rotate in the opposite direction, driving the cover plate 11 back to its initial position. Subsequently, the first drive structure 21 starts, driving the mounting base 23 away from the base 1 to begin the next operating cycle.

[0060] The first drive structure 21 controls the position of the mounting base 23, enabling precise adjustment of the mating position between the rotating shaft 24 and the mounting hole of the cover plate 11. For example, in high-precision circuit board soldering scenarios, this ensures that the rotating shaft 24 is accurately inserted into the mounting hole, avoiding jamming or damage caused by positional deviations. The second drive structure 22 utilizes gears 26 and racks 27 for transmission, enabling precise control of the rotation angle and speed of the rotating shaft 24. In production processes with strict requirements on soldering time and the opening / closing angle of the cover plate 11, the rotation angle of the rotating shaft 24 can be precisely controlled, and the rotation speed can be precisely adjusted within a certain range according to actual needs, achieving precise control of the opening and closing action of the cover plate 11 and meeting the needs of different production processes. Compared to the traditional manual opening and closing of the cover plate 11, the automated operation of this drive system 2 significantly shortens the opening and closing time.

[0061] Example 3

[0062] This embodiment is an improvement on embodiment 2.

[0063] like Figures 1-6 As shown, in this embodiment, a bearing 25 is provided on the mounting base 23, and one end of the rotating shaft 24 is fixedly connected to the bearing 25.

[0064] The bearing 25 mounted on the mounting base 23 significantly reduces the frictional resistance of the rotating shaft 24 during rotation. The bearing 25 provides precise support for the rotating shaft 24, effectively ensuring its rotational accuracy. In welding fixtures, this ensures that the cover plate 11 maintains a stable rotational trajectory during opening and closing, preventing wobbling or misalignment. For example, during circuit board welding, if the cover plate 11 wobbles, the position of the circuit board placed on the base 1 may change, affecting the welding quality. A stably rotating cover plate 11 ensures that the circuit board remains in the correct position throughout the welding process, improving welding consistency and yield, and reducing the product defect rate caused by welding position deviations.

[0065] Example 4

[0066] This embodiment is an improvement on embodiment 1.

[0067] like Figures 1-6 As shown, in this embodiment, the second drive structure 22 is a servo motor, and the output end of the servo motor is fixedly connected to the rotating shaft 24.

[0068] In this embodiment, the output end of the servo motor 28 is directly fixedly connected to the rotating shaft 24, thereby using the servo motor 28 to drive the cover plate 11 to close.

[0069] The direct connection eliminates the need for the gear 26 and rack 27 transmission mechanism, reducing the number of parts and making the structure of drive system 2 simpler. Fewer parts mean fewer potential failure points. At the same time, the simplified structure also reduces maintenance costs and difficulty. Maintenance personnel do not need to spend a lot of time lubricating, adjusting, and repairing gear 26 and rack 27, thus improving the overall operating efficiency of the equipment.

[0070] Example 5

[0071] This embodiment is an improvement on embodiment 1.

[0072] like Figures 1-6 As shown, in this embodiment, a pressure sensor is provided on the substrate 1, and the pressure sensor is located below the cover plate 11.

[0073] A pressure sensor is used to detect the pressure when the cover plate 11 is pressed down. During circuit board soldering, different circuit boards and soldering processes have specific pressure requirements. The pressure data fed back by the pressure sensor allows for timely adjustment of the drive system 2, ensuring the pressing pressure of the cover plate 11 remains stable within a suitable range. If the pressure is too low, insufficient contact between the circuit board and the soldering area will lead to poor soldering; if the pressure is too high, it may damage the electronic components on the circuit board. Using a pressure sensor can reduce the occurrence of poor soldering and component damage, effectively improving soldering quality.

[0074] In practical use, the pressure sensor transmits the detected pressure signal to the control system (such as a PLC). The control system automatically controls the operation of the drive system 2 based on the preset pressure value. When the pressure sensor detects that the pressure of the cover plate 11 has not reached the set value, the control system controls the second drive structure 22 to continue driving the cover plate 11 downwards; when the pressure reaches the set value, the control system issues a command to stop the drive system 2. This achieves automated pressure control during the opening and closing process of the welding fixture, significantly improving efficiency and making the operation more precise and stable compared to traditional manual pressure judgment.

[0075] Example 6

[0076] This embodiment is an improvement on embodiment 1.

[0077] like Figures 1-6 As shown, in this embodiment, a height-limiting column is provided on the base 1, and the height-limiting column corresponds to the cover plate 11.

[0078] The height limiting post effectively restricts the downward pressure of the cover plate 11. During circuit board soldering, excessive downward pressure of the cover plate 11 may damage the electronic components on the circuit board. The specific height design of the height limiting post ensures that the downward pressure distance of the cover plate 11 during normal operation will not exceed the range that the components can withstand, greatly protecting the electronic components on the circuit board and improving the product yield.

[0079] Example 7

[0080] like Figures 1-7 As shown, this embodiment provides a circuit board production line, including a conveyor line 100, on which a welding fixture for automatically opening and closing a cover as described above is provided.

[0081] In this embodiment, the base 1 is detachably mounted on the conveyor line 100, the drive system 2 is mounted on one side of the conveyor line 100, and a positioning sensor 110 is also mounted on the edge of the conveyor line 100, with the positioning sensor 110 located on one side of the drive system 2.

[0082] Specifically, the positioning sensor 110 is located at the edge of the conveyor line 100, on one side of the drive system 2. It is a high-precision photoelectric positioning sensor, model E3Z-T61. This sensor has a detection distance of 0-150mm and a detection accuracy of ±0.5mm, enabling accurate detection of whether the circuit board has been conveyed into position. The positioning sensor 110 is fixed to the side of the conveyor line 100 using a dedicated sensor bracket. Its installation position has been precisely calibrated to ensure reliable detection of the base 1's location.

[0083] In this embodiment, the substrate 1 is detachably mounted on the conveyor line 100, facilitating the replacement of welding fixtures of different specifications according to production needs. A circuit board is placed on the substrate 1. When the substrate 1 is delivered to the positioning sensor 110, the positioning sensor 110 sends a signal to the control system. The control system then controls the drive system 2 to operate, causing the cover plate 11 to automatically close, facilitating the next step of component placement and welding. This circuit board production line effectively improves the efficiency of circuit board welding and reduces labor costs. Through the coordinated operation of the positioning sensor 110 and the control system, automated operation of the welding fixture is achieved, significantly shortening the time for circuit board loading / unloading and welding preparation.

[0084] 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.

[0085] 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.

[0086] 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 welding fixture for automatically opening and closing a cover, characterized in that, include: A base (1) is provided with a placement position (12) and a cover plate (11), and the cover plate (11) is hinged to the base (1); The drive system (2) is provided with a rotating shaft (24), and the cover plate (11) is provided with a mounting hole. The rotating shaft (24) is adapted to the mounting hole, and the rotating shaft (24) drives the cover plate (11) to rotate when it rotates.

2. The welding fixture for the automatic opening and closing cover according to claim 1, characterized in that: The drive system (2) includes a first drive structure (21) and a second drive structure (22). The first drive structure (21) is disposed on one side of the base (1). The output end of the first drive structure (21) is provided with a mounting base (23). The first drive structure (21) drives the mounting base (23) to move closer to or away from the base (1). The rotating shaft (24) is rotatably mounted on the mounting base (23). The second driving structure (22) is fixed on the mounting base (23), and the output end of the second driving structure (22) is connected to the rotating shaft (24). The second driving structure (22) is used to drive the rotating shaft (24) to rotate.

3. The welding fixture for the automatic opening and closing cover according to claim 2, characterized in that: A gear (26) is fixed on the rotating shaft (24), and a rack (27) is provided at the output end of the second drive structure (22), the rack (27) meshing with the gear (26); The second drive structure (22) drives the rack (27) to move, thereby driving the gear (26) to rotate.

4. The welding fixture for the automatic opening and closing cover according to claim 2, characterized in that: The mounting base (23) is provided with a bearing (25), and one end of the rotating shaft (24) is fixedly connected to the bearing (25).

5. The welding fixture for the automatic opening and closing cover according to any one of claims 2-4, characterized in that: The second drive structure (22) is a servo motor (28), and the output end of the servo motor (28) is fixedly connected to the rotating shaft (24).

6. The welding fixture for the automatic opening and closing cover according to any one of claims 1-4, characterized in that: The cross-section of the mounting hole is polygonal or star-shaped.

7. The welding fixture for the automatic opening and closing cover according to claim 2, characterized in that: A pressure sensor is provided on the substrate (1), and the pressure sensor is located below the cover plate (11).

8. The welding fixture for the automatic opening and closing cover according to any one of claims 1-4, characterized in that: A height-limiting column is provided on the substrate (1), and the height-limiting column corresponds to the cover plate (11).

9. A circuit board production line, comprising a conveyor line (100), characterized in that: The conveyor line (100) is provided with welding fixtures for automatically opening and closing covers as described in any one of claims 1-8.

10. The circuit board production line according to claim 9, characterized in that: The base (1) is detachably mounted on the conveyor line (100), the drive system (2) is mounted on one side of the conveyor line (100), and a position sensor (110) is also mounted on the edge of the conveyor line (100). The position sensor (110) is mounted on one side of the drive system (2).

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