A BAG detector

Abstract

The application relates to a BAG detector and relates to the technical field of electronic equipment maintenance, and comprises a limiting mechanism. The application realizes automatic adaptive clamping of PCB boards of different sizes through cooperation of a double-shaft motor, a threaded column and a transverse side opening U-shaped plate: when facing PCB boards of different sizes, it is unnecessary to manually replace a clamp or adjust a spacing. A double-shaft motor is started, the output shaft of the double-shaft motor drives the threaded columns at two ends to rotate, since the threaded columns are in threaded connection with threaded holes at lower ends of the transverse side opening U-shaped plates, rotation of the threaded columns will be converted into horizontal movement of the transverse side opening U-shaped plates, and then the movable plate and the limiting plate are synchronously approached or moved away, so that the application is adapted to PCB boards of different widths. This process reduces the complexity and error probability of operation, and greatly improves the maintenance efficiency when a large number of PCB boards of different specifications are processed; through the synergistic action of a pressure sensor, an external controller and the double-shaft motor, precise control of clamping force is realized.

Description

Technical Field

[0001] This application relates to the field of electronic equipment repair technology, and in particular to a BAG detector. Background Technology

[0002] In PCB board repair, ensuring stable and appropriate clamping is fundamental to the smooth progress of testing and repair. Traditional PCB board clamping methods are mostly manual, requiring repair personnel to manually adjust the clamps to secure the PCB board to the heating plate. This manual operation is not only time-consuming and labor-intensive, but also makes it difficult to guarantee consistency and accuracy in clamping due to differences in operating habits and force applied by different repair personnel.

[0003] Manual clamping cannot automatically adapt to the needs of PCBs of different sizes. When faced with PCBs of various sizes, repair personnel need to frequently change clamps of different sizes or manually adjust the clamp spacing, which undoubtedly increases the complexity of the operation and the probability of errors. When dealing with a large number of PCBs of different sizes, the process of manually changing and adjusting clamps will seriously affect the repair efficiency.

[0004] Traditional methods lack effective monitoring and adjustment mechanisms for clamping force control. When the clamping force is too loose, the PCB board may shift during heating, causing the heating head of the thermal gun to misalign with the component requiring repair, affecting component disassembly and potentially causing accidental damage to other parts of the PCB board. Furthermore, if the PCB board shifts when inspecting BGA connections, the image observed by the electronic magnifying glass will be inaccurate, making it difficult for repair personnel to accurately diagnose the problem. Conversely, excessive clamping force can easily cause mechanical damage to the PCB board. PCB boards are generally fragile, and excessive clamping force can lead to board deformation, circuit breakage, and other problems, further damaging a repairable PCB board and increasing repair costs and difficulty. This damage caused by improper clamping force is particularly severe for high-precision, high-density PCB boards. Therefore, developing a device that can automatically clamp PCB boards of different sizes and monitor and adjust the clamping force in real time is urgently needed. To this end, a BGA detector is provided. Utility Model Content

[0005] Technical problems to be solved

[0006] The purpose of this application is to provide a BAG detector that can automatically clamp PCBs of different sizes and can monitor and adjust the clamping force in real time.

[0007] This application provides a BAG detector with the following technical solution: It includes a limiting mechanism, a heating plate at the upper end of the limiting mechanism, an adjusting guide rail at the rear of the limiting mechanism, a thermocouple movably connected to the upper end of the adjusting guide rail, an electronic magnifying glass at the right side of the thermocouple, and a rotating mechanism between the thermocouple and the adjusting guide rail to facilitate adjustment of the electronic magnifying glass to the upper end of the limiting mechanism. The limiting mechanism includes a base, the heating plate is fixedly connected to the upper surface of the base, a dual-axis motor is fixedly connected inside the base, and threaded columns are fixedly connected to both ends of the output shaft of the dual-axis motor. Each set of threaded columns has a transversely open U-shaped plate at its furthest end. Each of the two sets of transversely open U-shaped plates has a threaded hole near its lower end. The threaded post is threadedly connected to the transversely open U-shaped plate through the threaded hole. A movable plate is fixedly connected to the upper end of each of the two sets of transversely open U-shaped plates near its upper end. A groove is opened near the side of each of the two sets of movable plates. A movable block is movably connected near the end of each of the two sets of grooves. A limit plate is fixedly connected near the end of each of the two sets of movable blocks. A push rod is fixedly connected to the far end of each of the two sets of movable blocks. A pressure sensor is fixedly connected inside the groove. A spring is sleeved on the surface of the push rod and the pressure sensor. One end of the spring is fixedly connected inside the groove, and the other end of the spring is fixedly connected to the side of the movable block near the groove.

[0008] By adopting the above technical solution, the automatic adaptive clamping of PCBs of different sizes is achieved through the cooperation of a dual-axis motor, threaded columns, and a transversely open U-shaped plate. When dealing with PCBs of different sizes, there is no need to manually change clamps or adjust the spacing. Starting the dual-axis motor causes its output shaft to rotate the threaded columns at both ends. Since the threaded columns are threadedly connected to the threaded holes at the lower end of the transversely open U-shaped plate, the rotation of the threaded columns is converted into horizontal movement of the transversely open U-shaped plate, which in turn causes the movable plate and the limiting plate to move closer or further away synchronously, thus adapting to PCBs of different widths. This process reduces the complexity of operation and the probability of errors, significantly improving the maintenance efficiency when handling a large number of PCBs of different specifications. Precise control of the clamping force is achieved through the synergistic effect of the pressure sensor, external controller, and dual-axis motor: the external controller has a preset appropriate clamping pressure threshold range. When clamping the PCB, after the limiting plate contacts the PCB, the movable block moves into the groove, causing the push rod to press against the pressure sensor. The pressure sensor transmits the detected pressure value to the external controller. When the pressure value is below the preset threshold range, the external controller controls the dual-axis motor to run in the forward direction, bringing the two sets of transversely open U-shaped plates closer together, increasing the clamping force, and preventing the PCB board from shifting during heating or testing due to excessive clamping, thus ensuring accurate alignment of the heating head of the heat gun and accuracy of the images observed by the electronic magnifying glass. When the pressure value is above the preset threshold range, the external controller controls the dual-axis motor to run in the reverse direction, moving the two sets of transversely open U-shaped plates away from each other, reducing the clamping force, preventing mechanical damage to the PCB board due to excessive clamping, and reducing maintenance costs and difficulty.

[0009] Preferably, a first sliding groove is formed inside the groove, and a first slider is fixedly connected to the surface of the movable block, with the first slider being movably connected inside the first sliding groove.

[0010] By adopting the above technical solution, the first sliding groove inside the groove cooperates with the first slider on the surface of the movable block to guide the movement of the movable block, ensuring that the movable block moves smoothly in the groove and avoids deviation. This ensures that the top rod can accurately squeeze the pressure sensor, making the pressure detection more accurate and providing a guarantee for the precise adjustment of the clamping force.

[0011] Preferably, a second slider is fixedly connected to the surface of the U-shaped plate with the lateral side opening near the dual-axis motor, and a second groove is provided inside the base. A ball bearing is rotatably connected to the side of the second slider away from the U-shaped plate with the lateral side opening, and the ball bearing is rotatably connected inside the second groove.

[0012] By adopting the above technical solution, the second slider and ball on the transverse side opening U-shaped plate cooperate with the second sliding groove inside the base to convert the sliding friction of the transverse side opening U-shaped plate into the rolling friction of the ball, thereby reducing the resistance when the transverse side opening U-shaped plate moves, making the movement of the transverse side opening U-shaped plate driven by the dual-axis motor smoother and less labor-intensive, while reducing component wear and extending the service life of the equipment.

[0013] Preferably, both sets of limiting plates have an elastic protective layer on their adjacent surfaces.

[0014] By adopting the above technical solution, the elastic protective layer on the near side of the limiting plate directly contacts the PCB board. Its elastic properties can buffer the clamping force of the limiting plate on the PCB board, avoiding direct contact between the hard limiting plate and the PCB board surface, thus protecting the PCB board.

[0015] Preferably, the spring is made of stainless steel and has an anti-corrosion coating on its surface.

[0016] By adopting the above technical solution, the spring is made of stainless steel, which has good elasticity and strength, and can provide stable elastic force when the moving block moves, ensuring the reliability of clamping force adjustment; its surface anti-corrosion coating can prevent the spring from rusting due to environmental influences during long-term use, maintain the elastic performance of the spring, and extend its service life.

[0017] Preferably, the elastic protective layer is made of silicone material, and the surface of the elastic protective layer is provided with anti-slip texture.

[0018] By adopting the above technical solution, the elastic protective layer is made of silicone material, which is soft and elastic, further enhancing the buffer protection effect on the PCB board; its anti-slip texture can increase the friction between the PCB board and the PCB board, preventing the PCB board from sliding during clamping, ensuring the PCB board is firmly fixed and improving clamping stability.

[0019] Preferably, both the movable block and the top rod are made of aluminum alloy.

[0020] By adopting the above technical solution, the movable block and the push rod are made of aluminum alloy, which has high strength and can withstand the force during the clamping process, ensuring that the movable block and the push rod are not easily deformed, and ensuring the effective transmission of force and the accuracy of pressure detection. At the same time, the aluminum alloy material is lighter, which reduces the load when the U-shaped plate with the lateral side opening moves, making the adjustment process more energy-efficient and effective.

[0021] Preferably, both the dual-axis motor and the pressure sensor are electrically connected to an external controller, and the external controller has a preset clamping pressure threshold range. The pressure sensor adjusts the dual-axis motor according to the detected pressure value.

[0022] By adopting the above technical solution, the dual-axis motor and pressure sensor are electrically connected to an external controller. The external controller's preset clamping pressure threshold range provides a standard for clamping force adjustment. The pressure value detected by the pressure sensor can be fed back to the external controller in real time. The external controller controls the dual-axis motor to adjust its operating state according to the pressure value, realizing automatic adjustment of the clamping force. This ensures that the clamping force is always within a suitable range, avoiding damage to the PCB board or affecting the repair accuracy due to improper clamping force, and improving the automation level and reliability of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] This BAG detector, through the cooperation of a dual-axis motor, threaded pillars, and a U-shaped plate with a lateral opening, achieves automatic adaptive clamping of PCBs of different sizes. When dealing with PCBs of different sizes, there is no need to manually change clamps or adjust the spacing. Activating the dual-axis motor causes the output shaft to rotate the threaded pillars at both ends. Since the threaded pillars are threadedly connected to the threaded holes at the lower end of the U-shaped plate with the lateral opening, the rotation of the threaded pillars is converted into horizontal movement of the U-shaped plate, which in turn causes the movable plate and the limiting plate to move closer or further away synchronously, thus adapting to PCBs of different widths. This process reduces operational complexity and the probability of errors, significantly improving the inspection efficiency when handling a large number of PCBs of different specifications. Precise control of the clamping force is achieved through the synergistic action of a pressure sensor, an external controller, and the dual-axis motor: the external controller has a preset appropriate clamping pressure threshold range. When clamping the PCB, after the limiting plate contacts the PCB, the movable block moves into the groove, causing the push rod to press against the pressure sensor. The pressure sensor transmits the detected pressure value to the external controller. When the pressure value is below the preset threshold range, the external controller controls the dual-axis motor to run in the forward direction, bringing the two sets of transversely open U-shaped plates closer together, increasing the clamping force, and preventing the PCB board from shifting during heating or testing due to excessive clamping, thus ensuring accurate alignment of the heating head of the heat gun and accuracy of the images observed by the electronic magnifying glass. When the pressure value is above the preset threshold range, the external controller controls the dual-axis motor to run in the reverse direction, moving the two sets of transversely open U-shaped plates away from each other, reducing the clamping force, preventing mechanical damage to the PCB board due to excessive clamping, and reducing maintenance costs and difficulty. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present application.

[0026] Figure 2 This is a front cross-sectional view of the limiting mechanism of this application;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure at point A;

[0028] Figure 4 for Figure 2 Schematic diagram of the structure at point B;

[0029] Figure 5 This is a schematic diagram of the surface structure of the limiting plate.

[0030] In the picture:

[0031] 1. Limiting mechanism; 101. Base; 102. Dual-axis motor; 103. Threaded column; 104. Lateral side-opening U-shaped plate; 105. Threaded hole; 106. Movable plate; 107. Groove; 108. Movable block; 109. Limiting plate; 1010. Top rod; 1011. Pressure sensor; 1012. Spring; 1013. First slide groove; 1014. First slider; 1015. Second slider; 1016. Ball bearing; 1017. Second slide groove; 2. Heating plate; 3. Adjusting guide rail; 4. Heat gun; 5. Electronic magnifying glass; 6. Elastic protective layer; 7. Rotation mechanism. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0033] Example 1: A BAG detector, referring to Figure 1 , Figure 2 and Figure 3The system includes a limiting mechanism 1, a heating plate 2 at its upper end, an adjusting guide rail 3 at its rear, a heat gun 4 movably connected to the upper end of the adjusting guide rail 3, an electronic magnifying glass 5 on the right side of the heat gun 4, and a rotating mechanism 7 between the heat gun 4 and the adjusting guide rail 3 to facilitate adjustment of the electronic magnifying glass 5 to the upper end of the limiting mechanism 1. The limiting mechanism 1 includes a base 101, with the heating plate 2 fixedly connected to the upper surface of the base 101. A dual-axis motor 102 is fixedly connected inside the base 101. Threaded posts 103 are fixedly connected to both ends of the output shaft of the dual-axis motor 102. A transversely open U-shaped plate 104 is provided at the far end of each of the two sets of threaded posts 103. Threaded holes 105 are provided on the lower surfaces of the two sets of transversely open U-shaped plates 104. The threaded posts 103 are threadedly connected to the transversely open U-shaped plates 104 through the threaded holes 105. 4. Movable plates 106 are fixedly connected to the upper end near the surface. Grooves 107 are opened on the near side of the two sets of movable plates 106. Movable blocks 108 are movably connected to the near end of the two sets of grooves 107. Limit plates 109 are fixedly connected to the near end of the two sets of movable blocks 108. Top rods 1010 are fixedly connected to the far end of the two sets of movable blocks 108. Pressure sensors 1011 are fixedly connected inside the grooves 107. Springs 1012 are sleeved on the surface of the top rods 1010 and pressure sensors 1011. One end of the spring 1012 is fixedly connected inside the groove 107, and the other end of the spring 1012 is fixedly connected to the side of the movable block 108 near the groove 107. Through the cooperation of the dual-axis motor 102, the threaded column 103 and the transverse side opening U-shaped plate 104, automatic adaptive clamping of PCB boards of different sizes can be achieved: when facing PCB boards of different sizes, there is no need to manually change the clamps or adjust the spacing. The dual-axis motor 102 is started, and its output shaft drives the threaded posts 103 at both ends to rotate. Since the threaded posts 103 are threadedly connected to the threaded holes 105 at the lower end of the transversely open U-shaped plate 104, the rotation of the threaded posts 103 is converted into the horizontal movement of the transversely open U-shaped plate 104, which in turn drives the movable plate 106 and the limiting plate 109 to move closer or further away synchronously, thus adapting to PCBs of different widths. This process reduces the complexity of operation and the probability of error, and greatly improves the maintenance efficiency when handling a large number of PCBs of different specifications. With the help of the pressure sensor 1011, the external controller and the dual-axis motor 102, precise control of the clamping force is achieved: the external controller has a preset appropriate clamping pressure threshold range. When clamping the PCB, after the limiting plate 109 contacts the PCB, the movable block 108 moves into the groove 107, which drives the push rod 1010 to press the pressure sensor 1011. The pressure sensor 1011 transmits the detected pressure value to the external controller.When the pressure value is below the preset threshold range, the external controller controls the dual-axis motor 102 to rotate in the forward direction, so that the two sets of transversely open U-shaped plates 104 move closer to each other, increasing the clamping force and preventing the PCB board from shifting during heating or testing due to excessive clamping. This ensures the precise alignment of the heating head of the heat gun 4 and the accuracy of the image observed by the electronic magnifying glass 5. When the pressure value is above the preset threshold range, the external controller controls the dual-axis motor 102 to rotate in the reverse direction, so that the two sets of transversely open U-shaped plates 104 move further apart, reducing the clamping force and preventing mechanical damage to the PCB board due to excessive clamping, thereby reducing maintenance costs and difficulty.

[0034] Reference Figure 1 , Figure 2 and Figure 4 The groove 107 has a first sliding groove 1013 inside. A first slider 1014 is fixedly connected to the surface of the movable block 108. The first slider 1014 is movably connected inside the first sliding groove 1013. A second slider 1015 is fixedly connected to the surface of the transversely open U-shaped plate 104 near the dual-axis motor 102. The base 101 has a second sliding groove 1017 inside. A ball bearing 1016 is rotatably connected to the side of the second slider 1015 away from the transversely open U-shaped plate 104. The ball bearing 1016 is rotatably connected inside the second sliding groove 1017. The first sliding groove 1013 inside the groove 107 cooperates with the first slider 1014 on the surface of the movable block 108 to move the movable block 108. The guide function ensures that the movable block 108 moves smoothly within the groove 107, preventing deviation. This ensures that the top rod 1010 can accurately press the pressure sensor 1011, making pressure detection more accurate and providing a guarantee for precise adjustment of the clamping force. The second slider 1015 and ball bearing 1016 on the transverse side opening U-shaped plate 104 cooperate with the second sliding groove 1017 inside the base 101 to convert the sliding friction of the transverse side opening U-shaped plate 104 into the rolling friction of the ball bearing 1016. This reduces the resistance when the transverse side opening U-shaped plate 104 moves, making the movement of the transverse side opening U-shaped plate 104 driven by the dual-axis motor 102 smoother and less labor-intensive. At the same time, it reduces component wear and extends the service life of the equipment.

[0035] Reference Figure 1 , Figure 2 and Figure 5Both sets of limiting plates 109 have elastic protective layers 6 on their near surfaces. The spring 1012 is made of stainless steel and has an anti-corrosion coating. The elastic protective layer 6 on the near surface of the limiting plate 109 is in direct contact with the PCB board. Its elasticity can buffer the clamping force of the limiting plate 109 on the PCB board, avoiding direct contact between the hard limiting plate 109 and the PCB board surface, thus protecting the PCB board. The spring 1012 is made of stainless steel and has good elasticity and strength. It can provide stable elastic force when the movable block 108 moves, ensuring the reliability of the clamping force adjustment. Its anti-corrosion coating can prevent the spring 1012 from rusting due to environmental influences during long-term use, maintain the elastic performance of the spring 1012, and extend its service life.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The elastic protective layer 6 is made of silicone material, and its surface has an anti-slip texture. The movable block 108 and the push rod 1010 are both made of aluminum alloy. The dual-axis motor 102 and the pressure sensor 1011 are electrically connected to an external controller, which has a preset clamping pressure threshold range. The pressure sensor 1011 adjusts the dual-axis motor 102 according to the detected pressure value. The elastic protective layer 6, made of silicone material, is soft and elastic, further enhancing the cushioning and protection effect on the PCB board. Its anti-slip texture increases the friction between the PCB board and the gripper, preventing the PCB board from slipping during clamping. The sliding motion during clamping ensures the PCB board is firmly fixed, improving clamping stability. The movable block 108 and the push rod 1010 are made of aluminum alloy, a high-strength material capable of withstanding the forces during clamping, preventing deformation and ensuring effective force transmission and accurate pressure detection. Simultaneously, the lightweight aluminum alloy reduces the load on the U-shaped plate 104 during movement, making the adjustment process more energy-efficient. The dual-axis motor 102 and pressure sensor 1011 are electrically connected to an external controller. The external controller's preset clamping pressure threshold range provides a standard for clamping force adjustment. The pressure value detected by the pressure sensor 1011 is fed back to the external controller in real time. The external controller controls the dual-axis motor 102 to adjust its operation based on the pressure value, achieving automatic clamping force adjustment. This ensures the clamping force remains within a suitable range, preventing damage to the PCB board or affecting maintenance accuracy due to improper clamping force, thus improving the automation level and reliability of the equipment.

[0037] In this embodiment, the automatic adaptive clamping of PCBs of different sizes is achieved through the cooperation of the dual-axis motor 102, threaded post 103, and transversely open U-shaped plate 104: when facing PCBs of different sizes, there is no need to manually change the clamps or adjust the spacing. When the dual-axis motor 102 is started, its output shaft drives the threaded post 103 at both ends to rotate. Since the threaded post 103 is threadedly connected to the threaded hole 105 at the lower end of the transversely open U-shaped plate 104, the rotation of the threaded post 103 is converted into the horizontal movement of the transversely open U-shaped plate 104, thereby causing the movable plate 106 and the limiting plate 109 to move closer or further away synchronously, thus adapting to PCBs of different widths. This process reduces the complexity of operation and the probability of error, significantly improving the maintenance efficiency when handling a large number of PCBs of different specifications. Precise control of the clamping force is achieved through the synergistic effect of the pressure sensor 1011, the external controller, and the dual-axis motor 102: the external controller has a preset appropriate clamping pressure threshold range. When clamping the PCB board, after the limiting plate 109 contacts the PCB board, the movable block 108 moves into the groove 107, driving the push rod 1010 to press the pressure sensor 1011. The pressure sensor 1011 transmits the detected pressure value to the external controller. When the pressure value is lower than the preset threshold range, the external controller controls the dual-axis motor 102 to run in the forward direction, so that the two sets of transverse side-opening U-shaped plates 104 move closer to each other, increasing the clamping force and preventing the PCB board from shifting during heating or testing due to excessive clamping, ensuring accurate alignment of the heating head of the heat gun 4 and accuracy of image observation by the electronic magnifying glass 5. When the pressure value is higher than the preset threshold range, the external controller controls the dual-axis motor 102 to run in the reverse direction, so that the two sets of transverse side-opening U-shaped plates 104 move further apart, reducing the clamping force and preventing mechanical damage to the PCB board due to excessive clamping, thus reducing maintenance costs and difficulty.

[0038] The implementation principle of this embodiment is as follows: The PCB board to be repaired is placed on the heating plate 2 on the upper surface of the base 101, ensuring that the area of ​​the PCB board to be repaired faces the hot air gun 4 and the electronic magnifying glass 5, thus completing the initial positioning; after starting the equipment, the dual-axis motor 102 starts working, and its output shaft drives the threaded columns 103 at both ends to rotate synchronously. Since the threaded column 103 is threadedly connected to the threaded hole 105 at the lower end of the transversely open U-shaped plate 104, the rotation of the threaded column 103 is converted into the horizontal movement of the transversely open U-shaped plate 104. During the movement, the transversely open U-shaped plate 104 rolls along the second sliding groove 1017 inside the base 101 via the ball bearings 1016 on the second slider 1015, reducing the movement resistance. Two sets of transversely opening U-shaped plates 104 drive the movable plate 106 and the limiting plate 109 to move towards the PCB board simultaneously until the elastic protective layer 6 on the limiting plate 109 contacts the edge of the PCB board. After the limiting plate 109 contacts the PCB board, the movable block 108 moves into the groove 107 under the reaction force of the PCB board. The first slider 1014 on the surface of the movable block 108 slides along the first groove 1013 inside the groove 107 to ensure smooth movement. The movable block 108 drives the push rod 1010 to move towards the pressure sensor 1011, while compressing the spring 1012 sleeved on the surface of the push rod 1010 and the pressure sensor 1011. The pressure sensor 1011 detects the pressure transmitted by the push rod 1010 in real time and transmits the signal to the external controller. When the pressure reaches the preset threshold range of the external controller, the external controller controls the dual-axis motor 102 to stop working, and the PCB board is stably clamped. According to the maintenance requirements, move the hot air gun 4 along the adjusting guide rail 3 and adjust its horizontal position so that the heating head at the lower end of the hot air gun 4 is aligned with the component to be removed on the PCB board. Turn on the heating switch, and the heating plate 2 and the hot air gun 4 heat up simultaneously. The heat is transferred to the solder joint where the component is in contact with the PCB board, melting the solder. At this time, the component can be removed, and then the hot air gun 4 is turned off. Adjust the angle of the electronic magnifying glass 5 by rotating the mechanism 7, and then move the electronic magnifying glass 5 along the adjusting guide rail 3 to align it with the BGA connection on the PCB board. The electronic magnifying glass 5 transmits the observed image to the display device. The operator can check the status of the BGA connection through the image and find the problem. After the test is completed, the external controller controls the dual-axis motor 102 to run in reverse. The threaded column 103 drives the transverse side opening U-shaped plate 104, the movable plate 106 and the limit plate 109 to move away from the PCB board. The spring 1012 pushes the movable block 108 and the push rod 1010 to reset. The pressure sensor 1011 releases the pressure, the PCB board is removed, and the equipment is reset.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A BAG detector, comprising a limiting mechanism (1), wherein a heating plate (2) is provided at the upper end of the limiting mechanism (1), an adjusting guide rail (3) is provided at the rear side of the limiting mechanism (1), a heat gun (4) is movably connected to the upper end of the adjusting guide rail (3), an electronic magnifying glass (5) is provided on the right side of the heat gun (4), and a rotating mechanism (7) is provided between the heat gun (4) and the adjusting guide rail (3) to facilitate the adjustment of the electronic magnifying glass (5) to the upper end of the limiting mechanism (1), characterized in that: The limiting mechanism (1) includes a base (101), the heating plate (2) is fixedly connected to the upper surface of the base (101), a dual-axis motor (102) is fixedly connected inside the base (101), and threaded columns (103) are fixedly connected to both ends of the output shaft of the dual-axis motor (102). A transversely open U-shaped plate (104) is provided at one end of each set of threaded columns (103). A threaded hole (105) is provided on the lower end of each set of transversely open U-shaped plates (104) near the surface. The threaded column (103) is threadedly connected to the transversely open U-shaped plate (104) through the threaded hole (105). A movable plate (106) is fixedly connected to the upper end of each set of transversely open U-shaped plates (104) near the surface. Both sets of movable plates (106) have grooves (107) on their near sides. Both sets of grooves (107) are movably connected to movable blocks (108) near their near ends. Both sets of movable blocks (108) are fixedly connected to limit plates (109) near their near ends. Both sets of movable blocks (108) are fixedly connected to push rods (1010) at their far ends. A pressure sensor (1011) is fixedly connected inside the groove (107). A spring (1012) is sleeved on the surface of the push rod (1010) and the pressure sensor (1011). One end of the spring (1012) is fixedly connected inside the groove (107), and the other end of the spring (1012) is fixedly connected to the side of the movable block (108) near the groove (107).

2. A BAG detector according to claim 1, characterized in that: The groove (107) has a first sliding groove (1013) inside, and the movable block (108) has a first slider (1014) fixedly connected to its surface. The first slider (1014) is movably connected inside the first sliding groove (1013).

3. A BAG detector according to claim 1, characterized in that: A second slider (1015) is fixedly connected to the surface of the transverse side opening U-shaped plate (104) near the dual-axis motor (102). A second sliding groove (1017) is provided inside the base (101). A ball bearing (1016) is rotatably connected to the side of the second slider (1015) away from the transverse side opening U-shaped plate (104). The ball bearing (1016) is rotatably connected inside the second sliding groove (1017).

4. A BAG detector according to claim 1, characterized in that: Both sets of limiting plates (109) have an elastic protective layer (6) on their adjacent surfaces.

5. A BAG detector according to claim 1, characterized in that: The spring (1012) is made of stainless steel and has an anti-corrosion coating on its surface.

6. A BAG detector according to claim 4, characterized in that: The elastic protective layer (6) is made of silicone material, and the surface of the elastic protective layer (6) is provided with anti-slip texture.

7. A BAG detector according to claim 1, characterized in that: Both the movable block (108) and the top rod (1010) are made of aluminum alloy.

8. A BAG detector according to claim 1, characterized in that: The dual-axis motor (102) and pressure sensor (1011) are both electrically connected to an external controller, and the external controller has a preset clamping pressure threshold range. The pressure sensor (1011) adjusts the dual-axis motor (102) according to the detected pressure value.

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