A circuit board assembly docking station capable of cleaning up foreign objects

Abstract

This utility model relates to the field of circuit board surface mount assembly line technology, and discloses a circuit board assembly docking station capable of removing foreign objects. It includes a machine frame and an operating module mounted on the machine frame. The operating module includes a conveying mechanism, a brush mechanism, a foreign object sensor, an alarm device, and a control unit. During the conveying process of the circuit boards, the brush mechanism performs a cleaning action to remove any foreign objects that may be present on the surface of the circuit boards. Afterwards, the foreign object sensor monitors whether there are foreign objects on the surface of the circuit boards. Upon receiving a signal from the foreign object sensor indicating the presence of foreign objects, the control unit can control the conveying mechanism to stop conveying the circuit boards and control the alarm device to issue an alarm message, allowing for manual intervention for inspection and cleaning to ensure thorough removal of any remaining foreign objects from the surface of the circuit boards. Compared with existing technologies, the solution of this application has a better and more reliable foreign object removal effect.

Description

Technical Field

[0001] This utility model relates to the field of circuit board surface assembly production line technology, and in particular to a circuit board assembly docking station that can clean foreign objects. Background Technology

[0002] Printed circuit boards, also known as PCBs, are used in surface mount assembly lines to mount or assemble components onto the surface of circuit boards. In PCB assembly lines, transfer tables are typically used to transport circuit boards between adjacent processing equipment.

[0003] Common transfer stations include automated conveyor systems that transport circuit boards from one workstation to the next. However, if foreign objects fall onto the circuit boards during their flow on the production line, it can severely impact the processing of subsequent workstations. These foreign objects may originate from components, component covers, labels, etc. Currently, common transfer stations lack foreign object cleaning and monitoring functions.

[0004] In summary, how to provide a docking station with foreign object cleaning and monitoring functions is an urgent problem to be solved in the field of PCB surface mount assembly production line technology. Utility Model Content

[0005] This utility model provides a circuit board assembly docking station that can clean up foreign objects, thereby solving the technical problem that existing docking stations lack foreign object cleaning and monitoring functions.

[0006] To solve the aforementioned technical problems, the present invention adopts the following technical solution: A circuit board assembly dock capable of cleaning foreign objects includes a machine frame and an operating module mounted on the machine frame. The operating module includes a conveying mechanism, a brush mechanism, a foreign object sensor, an alarm device, and a control unit. The conveying mechanism is used to convey circuit boards. The brush mechanism is located above the conveying mechanism and is used to clean foreign objects from the surface of the circuit boards during the conveying process. The foreign object sensor is used to detect foreign objects on the surface of the circuit boards after the brush mechanism has cleaned them. The alarm device is used to issue an alarm message. After receiving a signal from the foreign object sensor indicating the presence of foreign objects, the control unit can control the conveying mechanism to stop conveying the circuit boards and control the alarm device to issue an alarm message.

[0007] In one alternative embodiment, the brush mechanism includes a brush member for cleaning foreign objects; in the conveying direction of the conveying mechanism, the brush member is closer to the side of the conveying mechanism feed plate than the foreign object sensor.

[0008] In one optional embodiment, the brush mechanism further includes a lifting drive device disposed on the machine frame, and the brush component is disposed at the output end of the lifting drive device, thereby driving the brush component to move up and down.

[0009] In one alternative embodiment, the brush component includes a brush handle and a brush plate; the brush handle is fixed to the output end of the lifting drive device; the brush plate is fixed to the brush handle, the surface of the brush plate is perpendicular to the conveying direction of the conveying mechanism, and the bottom side of the brush plate is parallel to the conveying surface of the conveying mechanism.

[0010] In one alternative embodiment, the brush plate includes a rigid rod and a bristle assembly; the rigid rod is fixed to the brush handle; the bristle assembly is fixed to the rigid rod; when the lifting drive device drives the brush component to move down to a preset position, the bristle assembly contacts the top surface of the conveying mechanism and the upper surface of the circuit board.

[0011] In one alternative embodiment, the conveying mechanism includes two support plates symmetrically disposed on the machine frame, two conveyor belts respectively disposed on the two support plates, and a drive assembly for simultaneously driving the two conveyor belts; the two conveyor belts are configured to support both sides of the circuit board respectively.

[0012] In one optional embodiment, the conveyor belt includes a pulley assembly disposed on a support plate and a connecting belt sleeved on the pulley assembly; the connecting belt forms a support portion extending along the conveying direction of the conveying mechanism under the limiting position of the pulley assembly, and the circuit board is supported by the support portion; the drive assembly drives the pulley assemblies of the two conveyor belts simultaneously through a connecting shaft, so that the pulley assembly drives the connecting belt to convey the circuit board.

[0013] In one optional embodiment, the inner sidewall of the support plate is provided with an abutment platform, which extends along the conveying direction of the conveying mechanism; the abutment platform is located below the support portion and abuts against the bottom surface of the support portion; the pulley set includes a driving pulley, two driven pulleys and multiple tension pulleys; the two driven pulleys are respectively located at both ends of the abutment platform, and each tension pulley is located below the driven pulley; the driving pulleys of the two pulley sets are sleeved on the connecting shaft and are connected to the connecting shaft.

[0014] In one optional embodiment, the drive assembly includes a drive motor and a coupling. The drive motor is fixed to the frame, and the drive motor shaft is coaxially connected to the connecting shaft through the coupling, so that the drive motor drives the connecting shaft to rotate.

[0015] In one optional embodiment, the top surface of the support plate is provided with a downward recessed groove, and the foreign object sensor is a photoelectric sensor, with the light-emitting element and the light-receiving element of the photoelectric sensor respectively embedded in the grooves of the two support plates.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, during the conveying of circuit boards, a brush mechanism located above the conveyor performs a cleaning action to remove any foreign objects that may be present on the surface of the circuit boards, preventing them from remaining. To prevent incomplete cleaning by the brush mechanism, a foreign object sensor monitors the surface of the circuit boards after the brush mechanism performs its cleaning action. If the sensor detects residual foreign objects, it sends a signal to the control unit. Upon receiving this signal, the control unit stops the conveyor and activates an alarm to prompt manual intervention for inspection and cleaning, ensuring thorough removal of any remaining foreign objects from the circuit boards. Compared to existing technologies, this invention's connecting platform has both foreign object cleaning and residual foreign object monitoring functions, resulting in better and more reliable foreign object removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the circuit board assembly docking station capable of cleaning foreign objects according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the circuit board assembly docking station capable of cleaning foreign objects according to an embodiment of this application; Figure 3 This is a schematic diagram of the brush mechanism according to an embodiment of this application; Figure 4 This is a schematic diagram of the connection structure between the conveying mechanism and the machine frame in an embodiment of this application; Figure 5 This application Figure 4 A schematic diagram of the connection structure of the conveyor mechanism and the frame after the circuit boards have been removed; Figure 6 This application Figure 5 Exploded view of the conveyor mechanism and frame structure; Figure 7 This is a schematic diagram of the conveying mechanism according to an embodiment of this application; Figure 8 This is a schematic diagram of the connection structure between the transmission belt and the support plate according to an embodiment of this application; Figure 9 This application Figure 8 An enlarged structural diagram of part A in the diagram; Figure 10 This is a schematic diagram of another connection structure between the conveyor belt and the support plate in this application.

[0018] The image is labeled as follows: 10. Machine frame; 11. First internal plate; 12. Second internal plate; 13. Base plate; 20. Conveying mechanism; 21. Conveyor belt; 211. Support plate; 2111. Groove; 2112. Abutment platform; 2121. Driven wheel; 2122. Linkage belt; 2123. Support part; 2124. Drive wheel; 2125. Tensioner wheel; 22. Drive assembly; 23. Linkage shaft; 201. Inlet end; 202. Outlet end; 30. Brush mechanism; 31. Lifting drive device; 32. Brush plate; 321. Rigid rod; 322. Brush bristle assembly; 40. Foreign object sensor; 40a. Light-emitting element; 40b. Light-receiving element; 50. Control unit; 60. Alarm device; 70. Circuit board; 80. Lead screw shaft; 81. Guide rod. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should be understood that if terms such as “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and 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 of this application.

[0021] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Please see Figure 1 This embodiment provides a circuit board assembly docking station capable of cleaning foreign objects, including a machine frame 10 and an operation module disposed on the machine frame. The operation module is capable of completing the circuit board conveying process, including but not limited to, between adjacent equipment in the production line. The operation module is powered by an external power source to enable operation.

[0024] Please combine Figure 1 and Figure 2 The operating module includes a conveying mechanism 20, a brush mechanism 30, a foreign object sensor 40, an alarm device 60, and a control unit 50. Of course, the operating module also includes other commonly used components, such as electronic control systems and heat dissipation systems, which are commonly used in existing technologies. These commonly used components will not be described in detail here.

[0025] The conveying mechanism 20 is used to convey the circuit board 70. The circuit board 70 enters from the board inlet end 201 of the conveying mechanism 20 and exits from the board outlet end 202. Therefore, it can be assumed that the conveying direction of the conveying mechanism 20 is from the board inlet end 201 to the board outlet end 202. The conveying direction mentioned below should also be understood in this way.

[0026] The brush mechanism 30 is located above the conveying mechanism 20. During the conveying process of the conveying mechanism 20, the brush mechanism 30 cleans foreign objects from the upper surface of the circuit board 70. The foreign object sensor 40 is used to sense foreign objects on the upper surface of the circuit board 70 after the brush mechanism 30 has cleaned them, in order to detect whether the brush mechanism 30 has thoroughly cleaned the foreign objects.

[0027] The alarm device 60 is used to issue an alarm message. After receiving a signal from the foreign object sensor 40 indicating the presence of a foreign object, the control unit 50 can control the conveyor mechanism 20 to stop conveying the circuit board 70 and control the alarm device 60 to issue an alarm message. The alarm device 60 and the conveyor mechanism 20 are electrically connected to the control unit 50 via a wired connection. The alarm device 60 can be a buzzer, indicator light, or other device capable of issuing a warning signal. The control unit 50 can be a PLC controller, an MCU processor, or other microprocessor capable of data analysis, processing, and control functions.

[0028] The working process of the circuit board assembly dock capable of removing foreign objects includes: conveying circuit boards 70 one by one using a conveyor mechanism 20; during the conveying process, a brush mechanism 30 located above the conveyor mechanism 20 performs a cleaning action to remove any foreign objects that may be present on the surface of the circuit boards 70, preventing foreign objects from remaining on the surface of the circuit boards 70. To prevent incomplete cleaning by the brush mechanism 30, after the brush mechanism 30 performs the cleaning action, a foreign object sensor 40 monitors whether there are foreign objects on the surface of the circuit boards 70. If the foreign object sensor 40 does not detect any foreign objects on the surface of the circuit boards 70, the conveying action of the conveyor mechanism 20 continues until the conveying process is completed. If the foreign object sensor 40 detects foreign objects remaining on the surface of the circuit board 70, it sends a signal to the control unit 50 indicating the presence of foreign objects. Upon receiving this signal, the control unit 50 controls the conveyor mechanism 20 to stop conveying the circuit board 70 and activates the alarm device 60 to issue an alarm, prompting manual intervention for inspection and cleaning to ensure thorough removal of any remaining foreign objects from the surface of the circuit board 70. After manual inspection and cleaning, the operator inputs a start command to the control unit 50 via a physical start button, allowing the conveyor mechanism 20 to continue conveying the circuit board 70. Compared to existing technologies, the foreign object-cleaning circuit board assembly dock of this embodiment possesses both foreign object cleaning capabilities and the ability to monitor residual foreign objects after cleaning, resulting in better and more reliable foreign object removal.

[0029] Please combine Figure 2 and Figure 3 In one embodiment, the brush mechanism 30 includes a brush member for cleaning foreign objects. The brush member is located above the feed plate end 201 of the conveying mechanism 20, and the foreign object sensor 40 is disposed at the feed plate end 201 of the conveying mechanism 20. In the conveying direction of the conveying mechanism 20, the brush member is closer to the feed plate side of the conveying mechanism 20 than the foreign object sensor 40. This ensures that the monitoring action of the foreign object sensor 40 occurs after the brush member performs the cleaning action, reducing the probability of false detection by the foreign object sensor 40.

[0030] In one embodiment, the brush mechanism 30 further includes a lifting drive device 31, which is mounted on the machine frame. Specifically, the lifting drive device 31 is fixed to the inner wall of one of the panels of the machine frame by fasteners. The brush component is located at the output end of the lifting drive device 31, and is driven to move up and down by the lifting drive device 31. The lifting drive device 31 can be a cylinder, an electric cylinder, or other drive device capable of outputting reciprocating motion. In this embodiment, the lifting drive device 31 uses a low-cost cylinder. In some application scenarios, when it is necessary to stop the machine to remove the circuit board 70 from the conveying mechanism 20, the cylinder valve is manually operated to move the brush component upward away from the conveying mechanism 20, so that the circuit board 70 can be manually removed from the conveying mechanism 20. After the circuit board 70 is removed, the cylinder valve is manually operated to move the brush component downward to a preset working position. In addition, when the conveying mechanism 20 stops working, the cylinder also drives the brush component to move upward, so as to leave operating space above the conveying mechanism 20, which facilitates the inspection, maintenance and other operations of the conveying mechanism 20.

[0031] In some other embodiments, the lifting drive device 31 is a cylinder, and the valve switch of the cylinder is an electric control switch. The electric control switch is electrically connected to the control unit 50. The control unit 50 controls the operation of the electric control switch, thereby controlling the cylinder to move, and finally controlling the lifting drive device 31 to drive the brush mechanism 30 to move up and down.

[0032] In other embodiments, the lifting drive device 31 may be an electric cylinder (or a linear module). The electric cylinder is electrically connected to the control unit 50. The control unit 50 controls the electric cylinder to drive the brush component to move down precisely according to a preset stroke, so that the brush mechanism 30 can flexibly adjust its position according to the thickness of different circuit boards 70, ensuring that the brush mechanism 30 can be used for circuit boards 70 of different thicknesses.

[0033] In one embodiment, the brush component includes a brush handle and a brush plate 32. The brush handle is fixed to the output end of the lifting drive device 31 by fasteners. The brush plate 32 is fixed to the brush handle, with its surface perpendicular to the conveying direction of the conveying mechanism 20, and its bottom side parallel to the transmission surface of the conveying mechanism 20. The transmission surface of the conveying mechanism 20 can be understood as the plane where the circuit board 70 is located or the plane where the bottom sidewall of the circuit board 70 is located. When the conveying mechanism 20 conveys the circuit board 70 along its conveying direction, the bottom side of the brush plate 32 contacts the upper surface of the circuit board 70 and slides relative to the upper surface of the circuit board 70, thus sweeping foreign objects off the upper surface of the circuit board 70. The cleaning process is simple and quick. In addition, the cleaning process is synchronized with the conveying process of the conveying mechanism 20 conveying the circuit board 70, and does not affect the efficiency of the conveying mechanism 20 in conveying the circuit board 70.

[0034] In one embodiment, the brush plate 32 includes a rigid rod 321 and a bristle assembly 322. The rigid rod 321 is fixed to the brush handle by fasteners. The orthographic projection of the bristle assembly 322 onto the conveying mechanism 20 is located between the foreign object sensor 40 and the end edge of the inlet plate 201 of the conveying mechanism 20. The bristle assembly 322 can be made of filaments such as plastic filaments, cotton filaments, and feathers. The filaments of the bristle assembly 322 are fixed to the rigid rod 321 by bonding, welding, rope binding, or other suitable connection methods, and extend along the length direction of the rigid rod 321. The length of the bristle assembly 322 extending along the rigid rod 321 is greater than the width of the circuit board 70. When the lifting drive device 31 drives the brush component to move down to the preset position, the bristle assembly 322 on the rigid rod 321 contacts the top surface of the conveying mechanism 20 and the upper surface of the circuit board 70. When the bristle assembly 322 slides relative to the circuit board 70, the bristle assembly 322 can thoroughly clean the upper surface of the circuit board 70.

[0035] Please combine Figures 4 to 7 In one embodiment, the conveying mechanism 20 includes two support plates 211 symmetrically disposed on the machine frame, two conveyor belts 21 respectively disposed on the two support plates 211, and a drive assembly 22 for simultaneously driving the two conveyor belts 21. The two conveyor belts 21 are configured to support both sides of the circuit board 70 respectively. Driven by the drive assembly 22, the two conveyor belts 21 act synchronously on both sides of the circuit board 70, thereby pushing the circuit board 70 forward. With the aforementioned structural solution, a clearance space can be formed between the two conveyor belts 21 to avoid components on the bottom surface of the circuit board 70.

[0036] Please see Figures 8 to 10 In one embodiment, the conveyor belt 21 includes a pulley assembly disposed on a support plate 211 and a connecting belt 2122 sleeved on the pulley assembly. The connecting belt 2122, under the constraint of the pulley assembly, forms a support portion 2123 extending along the conveying direction of the conveying mechanism 20, which supports the circuit board 70. The drive assembly 22 simultaneously drives the pulley assemblies of both conveyor belts 21 via a connecting shaft 23, so that the pulley assemblies drive the connecting belt 2122 to convey the circuit board 70.

[0037] In one embodiment, the pulley assembly includes a driving pulley 2124, two driven pulleys 2121, and multiple tension pulleys 2125. The two driven pulleys 2121 are located at both ends of the abutment platform 2112, and the two driven pulleys 2121 limit the movement of the connecting belt 2122 to form a support portion 2123. Each tension pulley 2125 is located below the driven pulleys 2121 and is used to provide tension to the connecting belt 2122. The two ends of the connecting shaft 23 are rotatably connected to two support plates 211, and the driving pulleys 2124 of the two pulley assemblies are sleeved on the connecting shaft 23. When the connecting shaft 23 rotates, it drives the driving pulleys 2124 of the two pulley assemblies to rotate synchronously.

[0038] The following are the implementation methods for installing the two support plates 211: In one embodiment (not shown), both support plates 211 can be fixedly attached to the machine frame 10. The distance between the two support plates 211 is not adjustable. The method by which the support plates 211 are fixedly attached to the machine frame 10 is not limited here.

[0039] Please continue reading. Figures 5 to 7 In one embodiment, one of the two support plates 211 is movably connected to the machine frame 10, and the other is fixedly connected to the machine frame 10. Specifically, the machine frame 10 has a first built-in plate 11 and a second built-in plate 12 inside, which are fixed to the inner wall of the machine frame 10 by fasteners. The bottoms of the first built-in plate 11 and the second built-in plate 12 are connected by a base plate 13. A guide rod 81 is provided between the first built-in plate 11 and the second built-in plate 12, and the number of guide rods 81 can be one, two, or more. The guide rod 81 is perpendicular to the first built-in plate 11 and the second built-in plate 12, and its two ends are respectively connected to the first built-in plate 11 and the second built-in plate 12. The two support plates 211 are located between the first built-in plate 11 and the second built-in plate 12 and are sleeved on the guide rods 81. The support plate 211 closer to the first built-in plate 11 is fixed to the first built-in plate 11 by fasteners and cannot slide relative to the guide rods 81. The support plate 211, which is close to the second built-in plate 12, can slide back and forth relative to the guide rod 81 along the axial direction of the guide rod 81.

[0040] Furthermore, the distance between the two support plates 211 can be adjusted by a lead screw mechanism. Specifically, the lead screw mechanism includes a lead screw shaft 80, a lead screw sleeve, and a lead screw motor. The two ends of the lead screw shaft 80 pass through the first inner plate 11 and the second inner plate 12, respectively, and are rotatably connected to both the first inner plate 11 and the second inner plate 12. The lead screw motor is fixed to the side of the first inner plate 11 facing away from the support plate 211, and its shaft is connected to the lead screw shaft via a coupling member. The lead screw sleeve is fitted onto the lead screw shaft 80 and threadedly connected to it. The support plate 211 closest to the first inner plate 11 is fixedly connected to the lead screw sleeve; specifically, the lead screw sleeve is inserted into the corresponding support plate 211 and fixedly connected to it by fasteners. When the lead screw motor drives the lead screw shaft 80 to rotate in both directions, the lead screw shaft 80 forces the lead screw sleeve to reciprocate along the axial direction of the lead screw shaft 80. This causes the lead screw sleeve to move the corresponding support plate 211 away from and closer to the other support plate 211, adjusting the distance between the two support plates 211, and ultimately adjusting the distance between the two conveyor belts 21. In some applications, the distance between the supports of the two conveyor belts 21 can be adjusted using the aforementioned method, allowing the conveying mechanism 20 to be adapted to convey circuit boards 70 of different widths.

[0041] In one embodiment, both support plates 211 are movably connected to the machine frame 10. The connection scheme of the support plates 211 in this embodiment differs from the previous embodiment in that the lead screw mechanism includes two lead screw sleeves, with the internal threads of the two lead screw sleeves rotating in opposite directions. The two support plates 211 are respectively fixed to the two lead screw sleeves. When the lead screw motor drives the lead screw shaft 80 to rotate, the lead screw shaft 80 drives the two lead screw shaft sleeves 80 to move closer and further apart, thereby causing the two lead screw sleeves to drive the two support plates 211 to move closer and further apart.

[0042] Next, the structure of the support plate 211 will be further illustrated by example.

[0043] Please combine Figure 9 and Figure 10 In one embodiment, an abutment platform 2112 protrudes from the inner sidewall of the support plate 211. Preferably, the abutment platform 2112 is integrally formed with the support plate 211. The abutment platform 2112 extends along the conveying direction of the conveying mechanism 20. The abutment platform 2112 is located below the support portion 2123 and abuts against the bottom surface of the support portion 2123 to provide support for the support portion 2123 and prevent the support portion 2123 from being deformed by the pressure of the circuit board 70, thus affecting the supporting effect of the support portion 2123.

[0044] In an embodiment where the distance between the two support plates 211 is adjustable, the radial cross-sectional shape of the connecting shaft 23 is prismatic, elliptical, or other non-circular. The driving wheel 2124 has a mounting hole corresponding to the radial cross-sectional shape of the connecting shaft 23. After the connecting shaft 23 is inserted and assembled into the mounting hole, the rotation of the connecting shaft 23 can drive the driving wheel 2124 to rotate. Furthermore, the connecting shaft 23 and the driving wheel 2124 can move relative to each other along the axial direction of the connecting shaft 23. This design allows the screw mechanism to drive the support plates 211 and the driving wheel 2124 to move along the axial direction of the connecting shaft 23, and also allows the connecting shaft 23 to drive...

[0045] Next, we will provide an exemplary description of how the drive component 22 drives the connecting belt 2122.

[0046] In one embodiment, the drive assembly 22 includes a drive motor and a coupling. The drive motor is fixed to the machine frame 10 by fasteners. Specifically, the drive motor is fixed to the side of the first built-in plate 11 facing away from the support plate 211 by fasteners. The shaft of the drive motor is coaxially connected to the connecting shaft 23 through the coupling. The drive motor drives the connecting shaft 23 to rotate, and the connecting shaft 23 drives the drive pulleys 2124 of the two belt assemblies to rotate synchronously. The drive pulleys 2124 drive the connecting belt 2122 to move, thereby causing the support portion 2123 of the connecting belt 2122 to move the circuit board 70, thus achieving the purpose of conveying the circuit board 70.

[0047] In one embodiment, the top surface of the support plate 211 has a downwardly recessed groove 2111. The foreign object sensor 40 is a photoelectric sensor, and the light-emitting element 40a and the light-receiving element 40b of the photoelectric sensor are respectively embedded in the grooves 2111 of the two support plates 211. Under the limitation of the grooves 2111, the photoelectric sensor will not easily shift its position, thus ensuring its sensing accuracy.

[0048] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0049] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A circuit board assembly docking station capable of cleaning foreign objects, comprising a machine frame (10) and an operating module disposed on the machine frame (10), characterized in that, The operating module includes: A conveying mechanism (20) for conveying circuit boards (70); A brush mechanism (30) is provided above the conveying mechanism (20) for cleaning foreign objects from the upper surface of the circuit board (70) during the conveying process of the circuit board (70) by the conveying mechanism (20); Foreign object sensor (40) is used to sense foreign objects on the upper surface of the circuit board (70) after the brush mechanism (30) has cleaned the foreign objects on the upper surface of the circuit board (70); An alarm device (60) is used to issue an alarm message; The control unit (50), after receiving a signal from the foreign object sensor (40) indicating the presence of a foreign object, can control the conveying mechanism (20) to stop conveying the circuit board (70) and control the alarm device (60) to issue an alarm message.

2. The circuit board assembly docking station capable of cleaning foreign objects as described in claim 1, characterized in that, The brush mechanism (30) includes a brush component for cleaning foreign objects; in the conveying direction of the conveying mechanism (20), the brush component is closer to the side of the inlet plate of the conveying mechanism (20) than the foreign object sensor (40).

3. The cleanable foreign matter-removable circuit board assembly docking station of claim 2, wherein, The brush mechanism (30) also includes a lifting drive device (31) provided on the machine frame (10). The brush component is located at the output end of the lifting drive device (31), and the lifting drive device (31) drives the brush component to move up and down.

4. The cleanable foreign matter-removable circuit board assembly docking station according to claim 3, wherein, The brush component includes a brush handle and a brush plate (32); the brush handle is fixed to the output end of the lifting drive device (31); the brush plate (32) is fixed to the brush handle, the surface of the brush plate (32) is perpendicular to the conveying direction of the conveying mechanism (20), and the bottom side of the brush plate (32) is parallel to the conveying surface of the conveying mechanism (20).

5. The cleanable foreign matter-removable circuit board assembly docking station of claim 4, wherein, The brush plate (32) includes a rigid rod (321) and a bristle assembly (322); the rigid rod (321) is fixed to the brush handle; the bristle assembly (322) is fixed to the rigid rod (321); when the lifting drive device (31) drives the brush component to move down to a preset position, the bristle assembly (322) contacts the top surface of the conveying mechanism (20) and the upper surface of the circuit board (70).

6. The cleanable foreign matter-removable circuit board assembly docking station according to any one of claims 1 to 5, wherein, The conveying mechanism (20) includes two support plates (211) symmetrically disposed on the machine frame (10), two conveyor belts (21) respectively disposed on the two support plates (211), and a drive assembly (22) for simultaneously driving the two conveyor belts (21); the two conveyor belts (21) are configured to support the two sides of the circuit board (70) respectively.

7. The cleanable foreign matter-removable circuit board assembly docking station of claim 6, wherein, The conveyor belt (21) includes a pulley assembly disposed on the support plate (211) and a connecting belt (2122) sleeved on the pulley assembly; the connecting belt (2122) forms a support portion (2123) extending along the conveying direction of the conveying mechanism (20) under the limitation of the pulley assembly, and the circuit board (70) is supported by the support portion (2123); the drive assembly (22) drives the pulley assemblies of the two conveyor belts (21) simultaneously through a connecting shaft (23) so that the pulley assembly drives the connecting belt (2122) to convey the circuit board (70).

8. The circuit board assembly docking station for cleaning foreign objects as described in claim 7, characterized in that, The inner wall of the support plate (211) is provided with an abutment platform (2112), which extends along the conveying direction of the conveying mechanism (20). The abutment platform (2112) is located below the support part (2123) and abuts against the bottom surface of the support part (2123). The pulley set includes a driving pulley (2124), two driven pulleys (2121) and multiple tension pulleys (2125). The two driven pulleys (2121) are located at both ends of the abutment platform (2112), and each tension pulley (2125) is located below the driven pulley (2121). The driving pulleys (2124) of the two pulley sets are sleeved on the connecting shaft (23) and are connected to the connecting shaft (23).

9. The cleanable foreign matter-removable circuit board assembly docking station of claim 8, wherein, The drive assembly (22) includes a drive motor and a coupling. The drive motor is fixed to the machine frame (10). The shaft of the drive motor is coaxially connected to the connecting shaft (23) through the coupling. The drive motor drives the connecting shaft (23) to rotate.

10. The cleanable foreign matter-removable circuit board assembly docking station of claim 6, wherein, The top surface of the support plate (211) is provided with a downward recessed groove (2111). The foreign object sensor (40) is a photoelectric sensor. The light-emitting element (40a) and the light-receiving element (40b) of the photoelectric sensor are respectively embedded in the grooves (2111) of the two support plates (211).

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