PCBA feeding and discharging mechanism and PCBA testing equipment

By designing a PCBA loading and unloading mechanism including robots and loading and unloading components, the problem of low loading and unloading efficiency in the prior art is solved, and the double-side simultaneous loading and unloading and flexible operation are realized, and the working efficiency and loading and unloading capacity are improved.

CN222770213UActive Publication Date: 2025-04-18HUIZHOU GUIDE MEASUREMENT & CONTROL TECH CO LTD
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Patent Information

Application Number
CN202421448249.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-04-18
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

The existing PCBA test equipment loading and unloading mechanism can only load and unload the material on one side, resulting in inefficiency and inability to match high-capacity testing mechanisms.

Method used

A PCBA loading and unloading mechanism is designed, including a robot and loading and unloading assembly. The loading and unloading assembly is composed of a connecting plate, a suction piece and a driving piece. The suction piece is arranged dislocated on both sides of the connecting plate. The robot adjusts the direction of the suction piece by rotating the connecting plate to realize the loading and unloading on both sides at the same time.

Benefits of technology

The loading and unloading capacity of a single loading and unloading mechanism is improved, and the loading and unloading on both sides is achieved simultaneously, which improves working efficiency. Through flexible material absorption parts layout and robot rotating the connecting plate, flexible loading and unloading operations are achieved.

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Abstract

The utility model discloses a PCBA feeding and discharging mechanism and PCBA test equipment, the PCBA feeding and discharging mechanism comprises a robot and a feeding and discharging assembly, the feeding and discharging assembly is connected to the front end of the robot, the feeding and discharging assembly comprises a connecting plate and a plurality of suction pieces, the middle of the connecting plate is rotatably connected with the front end of the robot, and the suction pieces are connected with the robot. The plurality of material suction pieces are respectively arranged on two opposite sides in the extending direction of the connecting plate, at least two material suction pieces are arranged on each side, and the at least two material suction pieces on each side are arranged at intervals in the extending direction perpendicular to the connecting plate. The feeding and discharging suction pieces are arranged on the two sides of the front end of the robot, the feeding and discharging capacity of a single feeding and discharging mechanism is increased, feeding and discharging on the two sides can be achieved at the same time, and the working efficiency is improved; and the connecting plate is rotationally connected with the front end of the robot, so that the robot can adjust the direction of the material suction piece by rotating the connecting plate, and flexible feeding and discharging are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of PCBA testing, in particular to a PCBA loading and unloading mechanism and PCBA testing equipment. Background Art

[0002] With the rapid development of electronic technology, PCBA (PCBA) used in various electronic devices is becoming increasingly sophisticated and complex. The performance of PCBA directly determines the quality of the entire product to a large extent. Therefore, in the production process of PCBA, it is required to add various test equipment and test tools at the end of the production process to ensure that all the installed circuit boards shipped from the factory are consistent with the various specifications and parameters during the design. PCBA testing includes circuit testing, voltage, current, resistance, power consumption and other indicators.

[0003] Existing PCBA test equipment includes loading and unloading mechanisms and other testing mechanisms. The loading and unloading mechanisms are generally robots that work with other testing mechanisms to achieve loading and unloading functions of PCBA boards. However, existing loading and unloading mechanisms only load and unload materials on one side, resulting in low efficiency and inability to match high-capacity testing mechanisms. Utility Model Content

[0004] The utility model aims to solve one of the problems in the related art at least to a certain extent. To this end, one of the purposes of the utility model is to provide a PCBA loading and unloading mechanism for realizing

[0005] A PCBA loading and unloading mechanism, the PCBA loading and unloading mechanism comprising:

[0006] robot;

[0007] A loading and unloading assembly is connected to the front end of the robot, and includes a connecting plate and a plurality of suction members. The middle portion of the connecting plate is rotatably connected to the front end of the robot. The plurality of suction members are respectively arranged on opposite sides of the extending direction of the connecting plate, and at least two suction members are arranged on each side. At least two suction members on each side are spaced apart along the extending direction perpendicular to the connecting plate.

[0008] Furthermore, the suction component includes at least two suction nozzles and a vacuum pump, at least two of the suction nozzles are connected to a side of the connecting plate away from the robot, and are staggered in a direction perpendicular to the extension of the connecting plate, and the vacuum pumps are connected to each of the suction nozzles.

[0009] Furthermore, the suction member also includes a driving member and a mounting plate, the driving member is connected to the connecting plate, the driving end of the driving member is drivingly connected to the mounting plate, the suction nozzle is connected to the side of the mounting plate away from the driving member, and the driving member drives the mounting plate and the suction nozzle to reciprocate in a direction perpendicular to the surface of the connecting plate.

[0010] Furthermore, the suction nozzle is fixedly connected to the mounting plate.

[0011] Furthermore, the material suction member also includes a lifting guide rod, which is movably arranged in the guide hole of the driving member and is connected to the mounting plate.

[0012] Furthermore, each of the material suction members is provided with two lifting guide rods, and the two lifting guide rods are respectively penetrated through the guide holes on both sides of the driving member along an extending direction perpendicular to the connecting plate.

[0013] Furthermore, four material suction members are arranged on each side of the connecting plate.

[0014] Furthermore, the mounting plate is provided with a plurality of nozzle mounting holes, the plurality of nozzle mounting holes are arranged at intervals and are all connected to the vacuum pump, and one nozzle is connected to any of the nozzle mounting holes.

[0015] Furthermore, the PCBA loading and unloading mechanism also includes a controller, which is arranged on the connecting plate and electrically connected to the robot and the plurality of the suction members.

[0016] A PCBA testing device comprises the PCBA loading and unloading mechanism as described above.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the present application is connected with a loading and unloading assembly at the front end of the robot, and the loading and unloading assembly includes a connecting plate and a plurality of suction pieces connected to both sides of the connecting plate, and at least two suction pieces are connected to each side, and the suction pieces on each side are arranged at intervals along the extension direction of the vertical connecting plate. In this way, both sides of the front end of the robot are provided with loading and unloading suction pieces, which increases the loading and unloading capacity of a single loading and unloading mechanism, and can also realize loading and unloading on both sides at the same time, thereby improving work efficiency; and the connecting plate is rotatably connected to the front end of the robot, so that the robot can adjust the direction of the suction piece by rotating the connecting plate, thereby realizing flexible loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] In the attached figure:

[0021] Figure 1 This is a structural schematic diagram of an embodiment of a PCBA loading and unloading mechanism of the present application;

[0022] Figure 2 This is a structural diagram of the PCBA loading and unloading mechanism from another perspective of this application;

[0023] Figure 3 This is a structural diagram of another perspective of the PCBA loading and unloading mechanism of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the loading and unloading components in the PCBA loading and unloading mechanism of this application;

[0025] Figure 5 This is a structural schematic diagram of the loading and unloading components in the PCBA loading and unloading mechanism of this application from another perspective.

[0026] Figure numerals: 1, PCBA loading and unloading mechanism; 10, robot; 30, loading and unloading assembly; 31, connecting plate; 33, suction piece; 331, suction nozzle; 333, vacuum pump; 335, driving piece; 337, mounting plate; 3371, suction nozzle mounting hole; 339, lifting guide rod. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the mechanism or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0028] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, mechanisms, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0030] like Figure 1 - Figure 5 As shown, the present application provides a PCBA loading and unloading mechanism 1, comprising:

[0031] Robot 10;

[0032] The loading and unloading assembly 30 is connected to the front end of the robot 10. The loading and unloading assembly 30 includes a connecting plate 31 and a plurality of suction members 33. The middle portion of the connecting plate 31 is rotatably connected to the front end of the robot 10. The plurality of suction members 33 are respectively arranged on opposite sides of the extending direction of the connecting plate 31. At least two suction members 33 are arranged on each side. The at least two suction members 33 on each side are spaced apart along the extending direction of the vertical connecting plate 31.

[0033] The loading and unloading assembly 30 includes a connecting plate 31 and a plurality of suction members 33. The middle part of the connecting plate 31 is rotatably connected to the front end of the robot 10. The connection mode of the rotatable connection can be a coupling connection and a universal joint connection, or a nut and flange connection, a hoop connection, a wire sleeve connection, etc., which are not limited here. In this embodiment, the front end of the robot 10 is connected to the connecting plate 31 by a connecting rod and a flange connection. In the connection process, the connecting rod plays a vital role. They are made of high-strength materials and are precision machined to have excellent rigidity and fatigue resistance. One end of the connecting rod is tightly connected to the front end actuator of the robot 10, and the other end is connected to the connecting plate 31 through a flange. This connection mode not only ensures the stability of the structure of the robot 10, but also enables the front end actuator to flexibly perform various actions. The flange serves as a bridge connecting the connecting rod and the connecting plate 31, and adopts a standard connection interface, so that the connection between different components becomes simple and fast. At the same time, the flange also has a certain adjustment function, and the angle and position between the connecting rod and the connecting plate 31 can be adjusted as needed to adapt to different working environments and task requirements. One side of the connecting plate 31 is connected to the front end of the robot 10 through a flange, and the other side is connected to a suction piece 33. The suction piece 33 can be driven by the movement of the movable arm of the robot 10, and the connecting plate 31 and the suction piece 33 can be flipped by rotating the connecting rod, thereby realizing the movement, rotation and flipping of the connecting plate 31, and the position movement of the suction piece 33 after sucking the PCBA board.

[0034] The design of multiple suction members 33 makes the whole device have higher flexibility and efficiency when sucking materials. These suction members 33 are evenly distributed on both sides of the extension direction of the connecting plate 31, which not only ensures the stability of the material during the suction process, but also improves the working range of the whole device. At least two suction members 33 are arranged on each side, and at least two suction members 33 on each side are arranged at intervals along the extension direction of the vertical connecting plate 31. Such a layout helps to avoid interference or conflict between different suction members 33 when sucking materials. At the same time, this interval arrangement also enables each suction member 33 to cooperate with each other when working and jointly complete the task of sucking materials. It can be understood that the suction members 33 on both sides can suck and take out the material for the suction member 33 on one side, and then suck and take out the material for the suction member 33 on the other side through the flipping of the robot 10, or the suction members 33 on both sides can suck and take out the material at the same time, and can work on one side or on both sides synchronously to improve work efficiency and loading and unloading capacity.

[0035] In addition, these suction members 33 are highly adjustable. According to actual needs, we can adjust the position, angle and suction force of the suction members 33 to adapt to materials of different shapes, sizes and weights. This flexibility enables the device to be widely used in various material suction scenarios to meet the needs of different industries.

[0036] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the present application is connected with a loading and unloading assembly 30 at the front end of the robot 10, and the loading and unloading assembly 30 includes a connecting plate 31 and a plurality of suction members 33 connected to both sides of the connecting plate 31, and at least two suction members 33 are connected to each side, and the suction members 33 on each side are arranged at intervals along the extension direction of the vertical connecting plate 31. In this way, both sides of the front end of the robot 10 are provided with loading and unloading suction members 33, which increases the loading and unloading capacity of a single loading and unloading mechanism, and can also realize loading and unloading on both sides at the same time, thereby improving work efficiency; and the connecting plate 31 is rotatably connected to the front end of the robot 10, so that the robot 10 can adjust the direction of the suction member 33 by rotating the connecting plate 31, thereby realizing flexible loading and unloading.

[0037] Furthermore, if Figure 1 - Figure 5 As shown, the suction member 33 includes at least two suction nozzles 331 and a vacuum pump 333. At least two suction nozzles 331 are connected to a side of the connecting plate 31 away from the robot 10, and are staggered in the extension direction of the vertical connecting plate 31. The vacuum pump 333 is connected to each suction nozzle 331. The suction member 33 can be a suction nozzle 331, a suction cup, etc. Preferably, the suction member 33 is a suction nozzle 331. In industrial production, the suction nozzle 331 is often used in the material absorption and transfer links on the automated production line. Its unique structural design enables it to fit closely to the surface of the material, and achieve rapid and stable adsorption through negative pressure, thereby improving production efficiency. At the same time, the suction nozzle 331 is also highly adjustable and can be adjusted according to the size, shape and weight of different materials to meet different production needs. The vacuum pump 333 is connected to the suction nozzle 331 and is controlled by a solenoid valve to achieve the suction and intake effects of the suction nozzle 331, and to achieve the switching between suction and discharge of the suction nozzle 331.

[0038] Furthermore, if Figure 1 - Figure 5As shown, the suction member 33 also includes a driving member 335 and a mounting plate 337. The driving member 335 is connected to the connecting plate 31. The driving end of the driving member 335 is drivingly connected to the mounting plate 337. The suction nozzle 331 is connected to the side of the mounting plate 337 away from the driving member 335. The driving member 335 drives the mounting plate 337 and the suction nozzle 331 to reciprocate in a direction perpendicular to the surface of the connecting plate 31. In this embodiment, the driving member 335 can be a cylinder, an oil cylinder, etc., and the mounting plate 337 is connected to the driving end of the driving member 335. Preferably, the mounting plate 337 is installed along the extension direction of the connecting plate 31, so as to avoid interference between multiple mounting plates 337. The suction nozzle 331 and the vacuum pump 333 are both installed on the mounting plate 337, the vacuum pump 333 is located above the mounting plate 337, and the suction nozzle 331 is located below the mounting plate 337. The driving member 335 can drive the mounting plate 337 to reciprocate along the direction perpendicular to the surface of the connecting plate 31, that is, the direction close to or away from the front end of the robot 10, thereby achieving the effect of moving the mounting plate 337 and the suction nozzle 331 up and down, and achieving the effect of picking up and dropping materials.

[0039] Furthermore, the suction nozzle 331 is fixedly connected to the mounting plate 337. The mounting plate 337 is exquisitely designed and made of high-strength material, which ensures a stable connection between the suction nozzle 331 and the mounting plate 337. The suction nozzle 331 is closely matched with the mounting plate 337 by precise threads or snap-fits, which effectively prevents loosening or falling off due to vibration or external force during use. The material of the suction nozzle 331 is made of high-quality materials that are wear-resistant and corrosion-resistant, ensuring that it can still maintain excellent performance in long-term use. The mounting plate 337 is also equipped with a flexible adjustment device, allowing the user to adjust the position and angle of the suction nozzle 331 according to actual needs. This design enables the suction nozzle 331 to locate the suction target more accurately, reduces operating errors, and improves the accuracy of the operation. In addition, the mounting plate 337 also has excellent load-bearing capacity and can withstand the large suction force generated by the suction nozzle 331 during operation. This enables the combination of the suction nozzle 331 and the mounting plate 337 to cope with various complex working environments and meet the diverse needs of users. In short, the fixed connection design between the suction nozzle 331 and the mounting plate 337 not only ensures the stability of the connection, but also improves the work efficiency and operation accuracy. This design provides users with a more convenient and efficient use experience, allowing it to perform at its best in various work scenarios.

[0040] Furthermore, if Figure 1 - Figure 5As shown, the suction member 33 also includes a lifting guide rod 339, which is movably arranged in the guide hole of the driving member 335 and connected to the mounting plate 337. The setting of the lifting guide rod 339 ensures the driving direction of the mounting plate 337, thereby realizing the precise docking of the suction nozzle 331 with the product. In addition, the suction member 33 is also cleverly designed with a dust cover to protect the lifting guide rod 339 and the guide hole of the driving member 335 to avoid the invasion of dust and impurities. The dust cover is made of wear-resistant and easy-to-clean materials, which can not only effectively isolate external pollution, but also ensure the smoothness and stability of the lifting guide rod 339 during the lifting process. At the connection between the mounting plate 337 and the lifting guide rod 339, we specially use a high-strength connector to ensure the stability and reliability of the connection. This connector has excellent fatigue resistance and can maintain a stable connection state during long-term use, thereby ensuring the stable operation of the suction member 33. At the same time, we have also optimized the lubrication performance of the lifting guide rod 339. A layer of lubricating grease is applied on the surface of the lifting guide rod 339 to reduce friction resistance and improve lifting efficiency. In addition, the lubricating grease also has the function of preventing rust and corrosion, which can extend the service life of the lifting guide rod 339. In the design of the drive 335, we fully considered its power output and stability. The drive 335 adopts a high-efficiency motor, which can provide stable and strong power output to ensure the rapid response and precise control of the lifting guide rod 339 during the lifting process. At the same time, the drive 335 also has an overload protection function, which can automatically cut off the power supply under abnormal conditions to ensure the safety of the equipment and operators.

[0041] Furthermore, each material suction member 33 is provided with two lifting guide rods 339, and the two lifting guide rods 339 are respectively penetrated through the guide holes on both sides of the driving member 335 along the extending direction of the vertical connecting plate 31. In order to ensure the stable lifting of each material suction member 33, two lifting guide rods 339 are designed, and the two lifting guide rods 339 are respectively cleverly penetrated through the guide holes on both sides of the driving member 335 along the extending direction of the vertical connecting plate 31. Such a layout not only ensures the balance of the material suction member 33 during the lifting process, but also enhances its stability to prevent deviation or shaking during the lifting process.

[0042] Furthermore, if Figure 1 - Figure 5 As shown, four suction members 33 are arranged on each side of the connecting plate 31, thereby increasing the loading and unloading capacity of a single loading and unloading mechanism.

[0043] Furthermore, if Figure 4 , Figure 5As shown, the mounting plate 337 is provided with a plurality of nozzle mounting holes 3371, and the plurality of nozzle mounting holes 3371 are arranged at intervals and are all connected to the vacuum pump 333, and a nozzle 331 is connected to any nozzle mounting hole 3371. The plurality of nozzle mounting holes 3371 can be arranged at intervals along a straight line, or can be arranged at intervals along a staggered cross, and can be arranged according to actual conditions. The inner wall of each nozzle mounting hole 3371 is smoothed to reduce friction, so that the nozzle 331 is smoother when inserted and removed. As an important adsorption component, the design of the nozzle 331 also fully considers practicality and durability. The nozzle 331 is made of wear-resistant material, which can resist the wear caused by long-term use and extend the service life. At the same time, the shape and size of the nozzle 331 are also optimized to adapt to objects of different sizes and shapes and achieve a wider range of adsorption capabilities. During the installation process, the user only needs to select any nozzle mounting hole 3371 and connect the nozzle 331 to the mounting hole. The installation process is simple and convenient, without the need for complex tools and operations, which greatly saves the user's time and energy. When the suction nozzle 331 is connected, the suction nozzle 331 can generate a vacuum suction force by starting the vacuum pump 333 to firmly adsorb the object. Since the plurality of suction nozzle mounting holes 3371 are connected to the vacuum pump 333, the user can select the suction nozzle 331 at different positions for use as needed, and flexibly respond to various adsorption requirements.

[0044] Furthermore, the PCBA loading and unloading mechanism 1 also includes a controller, which is arranged on the connecting plate 31 and electrically connected to the robot 10 and a plurality of suction pieces 33. As the core component of the PCBA loading and unloading mechanism 1, the controller ensures the accuracy and efficiency of the entire operation process. It is arranged on the connecting plate 31, which is not only convenient for wiring, but also ensures the compactness and stability of the entire mechanism structure. Through the electrical connection with the robot 10, the controller can accurately receive and execute the instructions of the robot 10 to achieve accurate loading and unloading operations. At the same time, the controller is also electrically connected to the plurality of suction pieces 33 to ensure that each suction piece 33 can work according to the preset program to complete the task of sucking and placing the PCB board. Under the action of the controller, the PCBA loading and unloading mechanism 1 can achieve highly automated operation, reduce the need for manual intervention, and improve production efficiency. At the same time, by accurately controlling the action of the suction piece 33, it can also effectively reduce problems such as damage or dislocation of the PCB board caused by improper operation, thereby improving product quality. In addition, the controller also has fault detection and alarm functions. Once an abnormal situation occurs during the operation of the mechanism, the controller can respond quickly and remind the operator through sound and light alarms, so that timely processing can be carried out to ensure the stable operation of the production line.

[0045] The utility model also provides a PCBA test device, which includes a CBA loading and unloading mechanism. The specific structure of the CBA loading and unloading mechanism refers to the above embodiment. Since the PCBA test device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0046] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A PCBA loading and unloading mechanism, characterized in that: include: robot; A loading and unloading assembly is connected to the front end of the robot, and includes a connecting plate and a plurality of suction members. The middle portion of the connecting plate is rotatably connected to the front end of the robot. The plurality of suction members are respectively arranged on opposite sides of the extending direction of the connecting plate, and at least two suction members are arranged on each side. At least two suction members on each side are spaced apart along the extending direction perpendicular to the connecting plate.

2. A PCBA loading and unloading mechanism according to claim 1, characterized in that: The suction component includes at least two suction nozzles and a vacuum pump. At least two of the suction nozzles are connected to a side of the connecting plate away from the robot and are staggered in a direction perpendicular to the extension of the connecting plate. The vacuum pump is connected to each of the suction nozzles.

3. A PCBA loading and unloading mechanism according to claim 2, characterized in that: The suction member also includes a driving member and a mounting plate, the driving member is connected to the connecting plate, the driving end of the driving member is drivingly connected to the mounting plate, the suction nozzle is connected to the side of the mounting plate away from the driving member, and the driving member drives the mounting plate and the suction nozzle to reciprocate in a direction perpendicular to the surface of the connecting plate.

4. A PCBA loading and unloading mechanism according to claim 3, characterized in that: The suction nozzle is fixedly connected to the mounting plate.

5. A PCBA loading and unloading mechanism according to claim 3, characterized in that: The material suction member also includes a lifting guide rod, which is movably arranged in the guide hole of the driving member and is connected to the mounting plate.

6. A PCBA loading and unloading mechanism according to claim 5, characterized in that: Each of the material suction members is provided with two lifting guide rods, and the two lifting guide rods are respectively penetrated through the guide holes on both sides of the driving member along the extending direction perpendicular to the connecting plate.

7. A PCBA loading and unloading mechanism according to any one of claims 1 to 6, characterized in that: The number of the material suction members arranged on each side of the connecting plate is four.

8. A PCBA loading and unloading mechanism according to any one of claims 3 to 5, characterized in that: The mounting plate is provided with a plurality of nozzle mounting holes, which are arranged at intervals and are all connected to the vacuum pump, and a nozzle is connected to any nozzle mounting hole.

9. A PCBA loading and unloading mechanism according to any one of claims 1 to 6, characterized in that: The PCBA loading and unloading mechanism further includes a controller, which is disposed on the connecting plate and electrically connected to the robot and the plurality of material suction members.

10. A PCBA testing device, characterized in that: It comprises a PCBA loading and unloading mechanism as claimed in any one of claims 1 to 9.