PCBA packaging device and PCBA packaging method

Abstract

The present application discloses a PCBA packaging device and a PCBA packaging method, wherein the PCBA packaging device comprises: a glue spraying assembly for spraying glue liquid onto the PCBA; a workbench located below the glue spraying assembly; a lifting assembly disposed on the workbench for carrying the PCBA, having a standby position and a correction position higher than the standby position; a correction assembly disposed on the workbench, the correction assembly being able to operably clamp and release the PCBA and perform rotation correction on the PCBA; a blocking member having a blocking position for blocking the PCBA at a working station and a avoidance position higher than the blocking position; when the blocking member blocks the PCBA at the working station, the lifting assembly lifts the PCBA to the correction position, and the correction assembly clamps the PCBA for rotation correction. The PCBA packaging device and the PCBA packaging method provided in the present specification can quickly and reliably adjust the angle of the PCBA before packaging to avoid PCBA deviation, and can block and position the PCBA at the working station.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board packaging, and in particular to a PCBA packaging device and a PCBA packaging method. Background Art

[0002] There are many packaging methods for PCBA (Printed Circuit Board + Assembly), such as coating the surface of the circuit board with conformal coating, potting and low-pressure injection molding. Each of the above methods has its own advantages and disadvantages: direct spraying of conformal coating, although simple, convenient and easy to implement, cannot truly protect the circuit board, cannot achieve waterproof and shockproof, and the packaging may fail over time; potting is cumbersome, inefficient, costly and has poor reliability; low-pressure injection molding uses low-pressure injection molding equipment, special molds, and adjusts the corresponding injection pressure and time to complete the packaging of the circuit board. This method has high mold design and production costs, and the characteristics of the glue itself have a greater impact on the packaging.

[0003] In the patent with international publication number WO2023060691A1 and titled "PCBA board packaging method and packaging device thereof", the solution adopted is suitable for the reliable packaging of low-height PCBAs (PCBA boards), but the incoming PCBAs often shift. If the angle of the PCBA is not adjusted correctly in time, the defective rate of subsequent packaged products will increase.

[0004] To solve the above problems, the inventor disclosed a method of correction by lifting and clamping in a patent with publication number CN116997094A and titled PCBA packaging device and PCBA offset adjustment method. However, the outer contour of the packaging layer formed by the method disclosed in the patent in actual application has sawtooth characteristics and cheap position problems, and does not meet the micron-level packaging accuracy, especially when the packaging space is very limited, it is difficult to meet the packaging requirements. In addition, the correction process is complicated and there are adjustments in multiple positions, which also leads to relatively low packaging efficiency. Summary of the invention

[0005] After further research by the inventors, the deep-seated reasons for the above problems are: first, after clamping, the PCBA is released again. At this time, the PCBA will be released after the clamping plate is withdrawn, causing slight movement; second, in order to avoid spraying interference, the PCBA will be lifted again to the spraying height position after releasing the PCBA. During the lifting process, the PCBA will inevitably be slightly moved again. Under the condition of displacement superposition, the overall spraying package will still produce a large disadvantage; third, the rotation center points of different PCBAs are different for clamping and correction. If similar clamping and rotation correction strategies are used, the deflection displacement is difficult to determine, and thus the correction requirements of different types of PCBAs cannot be met.

[0006] An object of the present invention is to provide a PCBA packaging device and a PCBA packaging method, which can quickly and reliably adjust the angle of the PCBA before packaging to avoid PCBA deviation, and can block and position the PCBA at a working station.

[0007] To achieve the above-mentioned purpose, the embodiments of this specification provide a PCBA packaging device, including:

[0008] Glue spraying assembly for spraying glue onto PCBA;

[0009] a workbench located below the glue spraying assembly;

[0010] A lifting assembly disposed on the workbench for carrying the PCBA, having a standby position and a deviation correction position higher than the standby position;

[0011] A deviation correction component is arranged on the workbench, and the deviation correction component can operably clamp and release the PCBA and perform rotational deviation correction on the PCBA;

[0012] The blocking member has a blocking position for blocking the PCBA at a working station and a avoiding position higher than the blocking position; when the blocking member blocks the PCBA at the working station, the lifting assembly lifts the PCBA to a deviation correction position, and the deviation correction assembly clamps the PCBA for rotation correction;

[0013] The blocking position of the blocking member is adjustable, and the blocking position is configured such that when the blocking member blocks the PCBA at the working station, the rotation center of the PCBA coincides with the center of the PCBA when the deviation correction component performs rotation correction on the PCBA.

[0014] As a preferred implementation, the blocking member is operable to move along a first direction to change its blocking position, and the first direction is parallel to a conveying direction of the PCBA.

[0015] As a preferred embodiment, when the deviation correcting assembly clamps the PCBA, the glue spraying assembly moves back and forth in the horizontal direction with a constant height position, and sprays UV glue to a target glue spraying area of ​​the PCBA.

[0016] As a preferred implementation, the blocking member is operable to move along a first direction, and the first direction is parallel to a conveying direction of the PCBA.

[0017] As a preferred embodiment, the blocking member is fixedly connected to one side of the glue spraying assembly, and the glue spraying assembly can move along the first direction and a second direction, and the second direction is perpendicular to the first direction and parallel to the horizontal plane.

[0018] As a preferred embodiment, the PCBA packaging device further includes:

[0019] A first driving member connected to the deviation-correcting assembly, used to drive the deviation-correcting assembly to rotate;

[0020] A second driving member connected to the blocking member, used to drive the blocking member to move up and down; a fixed end of the second driving member is fixedly disposed on the glue spraying assembly;

[0021] The third driving member connected to the glue spraying assembly is used to drive the glue spraying assembly to move along the first direction and the second direction.

[0022] As a preferred embodiment, the correction assembly includes: two clamping plates respectively arranged on both sides of the lifting assembly, and the opposite sides of the two clamping plates are used to clamp the PCBA; when the lifting assembly is located in the correction position, the two clamping plates can clamp the PCBA on the lifting assembly inward, and the distance between the two clamping plates is equal to the width of the PCBA.

[0023] As a preferred embodiment, the number of the first driving members is two, which are respectively connected to the two clamping plates, and are used to drive the two clamping plates to rotate simultaneously.

[0024] As a preferred embodiment, the position of the blocking member in the first direction is configured such that when the blocking member blocks the PCBA at the working station, the rotation center of the PCBA coincides with the center of the PCBA when the correction assembly performs rotation correction on the PCBA.

[0025] As a preferred embodiment, a conveying assembly for conveying the PCBA is provided on the workbench, and the conveying assembly includes two conveyor belts extending along the first direction, and two carriers relatively supporting the conveyor belts; one of the carriers is fixedly arranged on the workbench, and the other carrier is movably arranged on the workbench and can move along the second direction; the lifting assembly is arranged between the two carriers, and at least part of the correction assembly is located above the carriers.

[0026] As a preferred embodiment, the deviation correction component includes: two clamping plates for clamping on both sides of the PCBA respectively; the side edges of the clamping plates facing the PCBA are provided with inclined surfaces for guiding the PCBA to move upward.

[0027] As a preferred implementation, a blocking portion is provided above the inclined surface; the blocking portion is a blocking shield, and its thickness is less than 0.5 mm.

[0028] As a preferred implementation, the shielding width of the blocking portion is within 5 mm.

[0029] As a preferred embodiment, the lifting assembly includes two lifting members respectively located on the inner sides of the carrier frame; when the lifting assembly is located at the standby position, the top surface of the lifting member is lower than or level with the top surface of the conveyor belt, and the distance between the two clamping plates is greater than the width of the PCBA; when the lifting assembly is located at the correction position, the top surface of the lifting member is higher than the top surface of the conveyor belt.

[0030] As a preferred embodiment, the PCBA packaging device also includes a camera arranged on the workbench; after the lifting assembly lifts the PCBA to the correction position and the correction assembly clamps the PCBA, the camera can take a picture of the PCBA to obtain the offset angle of the PCBA, and the first driving member can drive the correction assembly to rotate according to the offset angle.

[0031] As a preferred embodiment, the PCBA packaging device further includes:

[0032] a fourth driving member for driving the lifting assembly to switch between the standby position and the deviation correcting position;

[0033] a fifth driving member for driving one of the carriers to move in the second direction;

[0034] A controller electrically connected to the first drive member, the second drive member, the third drive member, the fourth drive member, the fifth drive member and the camera respectively, is used to control the start and stop of the first drive member, the second drive member, the third drive member, the fourth drive member, the fifth drive member and the camera, and receive images taken by the camera.

[0035] The embodiments of this specification also provide a PCBA packaging method, wherein the PCBA packaging method uses the PCBA packaging device described in any of the above embodiments, and the PCBA packaging method comprises the following steps:

[0036] Position the PCBA block at the work station;

[0037] Lifting the PCBA located at the working station to a deviation correction position;

[0038] Control the correction component to clamp the PCBA for rotation correction;

[0039] The PCBA is subjected to spray packaging. Beneficial Effects

[0040] The PCBA packaging device provided by the present invention is provided with a blocking member, a lifting assembly and a correction assembly. When the blocking member is in the blocking position, the PCBA can be blocked at the working station. Even for different types of PCBAs, the blocking member can be used to position the corresponding type of PCBA at a working station suitable for correction. At this time, the lifting assembly lifts the PCBA to the correction position, and the correction assembly can clamp the PCBA for rotation correction to adjust the angle of the PCBA. The PCBA does not have a secondary lift, so that the angle of the PCBA is accurate during packaging, so that the spray assembly can accurately spray and package the PCBA. The blocking member also has an avoidance position higher than the blocking position to avoid the PCBA, so as not to hinder the subsequent lifting, rotation correction and packaging operations of the PCBA. By setting the blocking member, the blocking of the PCBA can be easily achieved.

[0041] The angle of the PCBA can be adjusted by rotating the PCBA to quickly and reliably adjust the angle of the PCBA before packaging to avoid PCBA deviation. After the PCBA is rotated and corrected by the correction component, it still clamps the PCBA. When the spray glue component performs spray packaging on the PCBA, the correction component clamps the PCBA to ensure that the angle of the PCBA is fixed and does not deviate, thereby ensuring high packaging accuracy.

[0042] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0043] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0044] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A schematic diagram of the three-dimensional structure of a PCBA packaging device provided in this embodiment;

[0047] Figure 2 for Figure 1 A schematic diagram of a relevant structure on a carrier frame;

[0048] Figure 3 for Figure 2 An enlarged schematic diagram of the structure after the clamping plate and the connecting plate are removed;

[0049] Figure 4 A schematic diagram of the structure of a clamping plate provided in this embodiment;

[0050] Figure 5 A schematic structural diagram of a glue spraying assembly and a blocking member provided in this embodiment;

[0051] Figure 6 A schematic diagram of the structure of a blocking member provided in this embodiment;

[0052] Figure 7 The following is a flowchart of the steps of a PCBA packaging method provided in this embodiment.

[0053] Description of reference numerals:

[0054] 1. Glue spraying assembly; 2. Workbench; 3. Carrying frame; 31. Connecting plate; 4. Conveyor belt; 5. Lifting assembly; 6. Correction assembly; 61. Clamping plate; 611. Inclined surface; 612. Blocking part; 62. First groove; 63. Cam; 64. Photoelectric sensing sheet; 65. Photoelectric sensor; 7. Blocking member; 8. First driving member; 9. Second driving member; 10. Fourth driving member; 11. Fifth driving member; 12. Sixth driving member; 13. Rotating platform; 14. First track; 15. Second track; 17. Connecting member; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0056] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0058] See also Figures 1 to 6 The embodiment of the present application provides a PCBA packaging device, including a glue spraying assembly 1, a workbench 2, a lifting assembly 5, a deviation correcting assembly 6 and a blocking member 7.

[0059] Among them, the glue spraying component 1 is used to spray glue to the PCBA, which is a piezoelectric array nozzle, on which multiple rows of parallel and staggered spray holes are distributed. The spraying accuracy of the glue spraying component can be above 200PPI, and the preferred spraying accuracy can be above 300PPI. The workbench 2 is located below the glue spraying component 1. The lifting component 5 is arranged on the workbench 2, and is used to carry the PCBA. The lifting component 5 has a standby position and a deviation correction position higher than the standby position. The deviation correction component 6 is arranged on the workbench 2, and the deviation correction component 6 can be operated to clamp and release the PCBA and perform rotational deviation correction on the PCBA. The glue spraying component 1 sprays the target spraying area of ​​the PCBA in the state where the deviation correction component 6 clamps the PCBA. After rotating and correcting the PCBA, the deviation correction component 6 still maintains the clamping state of the PCBA and releases the PCBA after the spraying is completed. The glue spraying component sprays UV glue with a viscosity of 2-80cP (at 40-50°C) to the PCBA.

[0060] The blocking member 7 has a blocking position for blocking the PCBA at the working station and a avoiding position higher than the blocking position. When the blocking member 7 blocks the PCBA at the working station, the lifting assembly 5 lifts the PCBA to the deviation correction position, and the deviation correction assembly 6 clamps the PCBA for rotation correction.

[0061] When the correction component 6 clamps the PCBA, the glue spraying component 1 moves back and forth in the horizontal direction at a constant height position to spray UV glue to the target glue spraying area of ​​the PCBA. The movement trajectory of the glue spraying component 1 of this embodiment adopts a predetermined trajectory and does not change due to different glue spraying areas. Even if the shape or size of the glue spraying area is different, the movement trajectory of the glue spraying component 1 of this embodiment does not change according to the glue spraying area, and it still maintains horizontal reciprocating movement at a certain height position.

[0062] The PCBA packaging device of this embodiment packages the PCBA. PCBA packaging is to perform encapsulation spraying on the PCB with electronic components to achieve packaging protection for the PCBA electronic components. Its main purpose is to form a protective film layer structure with functions such as insulation, waterproofing, shockproofing, and corrosion resistance on the PCBA to completely encapsulate and protect the electronic components in the target area.

[0063] PCBA packaging is different from flat-type full-cover packaging (such as display panels) or wafer packaging. For example, unlike nano-scale photoresist films, PCBA packaging films are generally above 100μm, and some are even above 1000μm. In addition, PCBA packaging is usually local packaging, which provides protective packaging for electronic components with specific functions.

[0064] The PCBA includes a printed circuit board and an electronic component arranged on the printed circuit board. In particular, the PCBA packaging device is suitable for electronic packaging of a low-height thin or patch PCBA. Specifically, the maximum height of the electronic component relative to the surface of the printed circuit board (PCB) is less than 1 cm. Furthermore, the maximum height of the electronic component relative to the surface of the printed circuit board is less than 0.5 mm.

[0065] During the glue spraying process, the glue spraying assembly 1 is positioned above the highest electronic component, and the distance between the glue spraying assembly 1 and the highest electronic component is controlled to be less than 2 mm. Furthermore, the distance between the glue spraying assembly 1 and the highest electronic component is controlled to be less than 1 mm.

[0066] In order to avoid interference between the electronic components on the PCBA and the moving path of the glue spraying assembly 1, and the glue (glue droplets) drifting, the distance between the glue spraying assembly 1 and the PCBA should not be too large. The glue spraying assembly 1 uses an array nozzle such as a piezoelectric array nozzle, which has a small nozzle hole and a high initial velocity of the glue droplets ejected, but the velocity damage is also fast, which is prone to drifting problems. To avoid this problem, the distance between the glue spraying assembly 1 and the highest electronic component is controlled to be less than 2 mm, or even within 1 mm.

[0067] During the glue spraying process, the relative height between the glue spraying component 1 and the PCBA remains unchanged. During the glue spraying process, the glue spraying component 1 is controlled to move back and forth along a horizontal straight line to spray UV glue to the target glue spraying area of ​​the PCBA board until the glue spraying packaging is completed.

[0068] The PCBA packaging device provided in this embodiment is provided with a blocking member 7, a lifting assembly 5 and a correction assembly 6. When the blocking member 7 is in the blocking position, the PCBA can be blocked at the working station. At this time, the lifting assembly 5 lifts the PCBA to the correction position. The correction assembly 6 can clamp the PCBA for rotation correction to adjust the angle of the PCBA so that the angle of the PCBA is accurate during packaging, so that the glue spraying assembly 1 can accurately spray and package the PCBA. The blocking member 7 also has an avoidance position higher than the blocking position to avoid the PCBA, so as not to hinder the subsequent lifting, rotation correction and packaging operations of the PCBA. By providing the blocking member 7, the blocking of the PCBA can be easily achieved.

[0069] The angle of the PCBA can be adjusted by using a rotational correction method, so that the angle of the PCBA can be adjusted quickly and reliably before packaging to avoid PCBA deviation. After the correction component 6 performs rotational correction on the PCBA, the PCBA is still clamped. When the spraying component 1 performs spraying packaging on the PCBA, the correction component 6 clamps the PCBA to ensure that the angle of the PCBA is fixed and does not deviate, thereby ensuring high packaging accuracy.

[0070] In this embodiment, the PCBA packaging device further includes a first driving member 8 connected to the deflection correction component 6, which is used to drive the deflection correction component 6 to rotate. The PCBA packaging device further includes a camera (not shown) disposed on the workbench 2. After the lifting component 5 lifts the PCBA to the deflection correction position and the deflection correction component 6 clamps the PCBA, the camera can take a picture of the PCBA to obtain the deviation angle of the PCBA, and the first driving member 8 can drive the deflection correction component 6 to rotate according to the deviation angle.

[0071] Specifically, a number of positioning points are provided on the PCBA, and the camera takes a picture of the PCBA, so that the actual position of the positioning points can be obtained. When spraying and encapsulating the PCBA, the PCBA needs to be located at a specific position, and the position of the positioning points on the PCBA can be defined as the encapsulation position. By comparing the actual position and the encapsulation position, the offset angle of the PCBA can be obtained, so that the first drive member 8 drives the correction component 6 to rotate according to the offset angle to realize the correction of the PCBA, and the positioning points on the PCBA rotate from the actual position to the encapsulation position. The number of positioning points is preferably 2 or 3, which ensures the correction accuracy while saving the correction time.

[0072] Compared with the method of obtaining a picture of the entire PCBA to adjust the position of the PCBA, this embodiment determines the offset angle by positioning points, which can avoid errors caused by distortion during PCBA picture transmission and avoid time waste caused by a large amount of calculation.

[0073] In this embodiment, a conveying assembly for conveying PCBA is provided on the workbench 2. The conveying assembly can convey the PCBA to the work station. The lifting assembly 5 and the deviation correction assembly 6 can respectively lift and rotate the PCBA located at the work station for deviation correction, that is, the deviation correction assembly 6 and the lifting assembly 5 are both arranged at the work station.

[0074] Specifically, the conveying assembly includes two conveyor belts 4 extending along a first direction X, and two carriers 3 that bear the conveyor belts 4. One of the carriers 3 is fixed on the workbench 2, and the other carrier 3 is movably arranged on the workbench 2 and can move along a second direction Y to change the distance between the fixed carrier 3, so that the PCBA packaging device can be applied to PCBAs of different widths. The lifting assembly 5 is arranged between the two carriers 3, and at least part of the deviation correction assembly 6 is located above the carrier 3.

[0075] The first direction X and the second direction Y are perpendicular and parallel to the horizontal plane. The width of the PCBA described in the embodiment of the present application refers to the size of the PCBA along the second direction Y.

[0076] In this embodiment, the deviation correction component 6 includes two clamping plates 61 respectively arranged on both sides of the lifting component 5. The opposite sides of the two clamping plates 61 are used to clamp and adjust the angle of the PCBA. When the lifting component 5 is in the deviation correction position, the two clamping plates 61 can clamp the PCBA on the lifting component 5 inwardly, and the distance between the two clamping plates 61 is equal to the width of the PCBA.

[0077] Specifically, Figure 3 As shown, a rotating platform 13 is provided on the side of the carrier 3 facing away from the conveyor belt 4, and the clamping plate 61 is fixedly mounted on the rotating platform 13. The rotating axis of the rotating platform 13 extends in the vertical direction, and the rotating platform 13 is connected to the moving end of the first driving member 8. The first driving member 8 can drive the rotating platform 13 to rotate in the vertical direction, thereby driving the clamping plate 61 to rotate in the vertical direction.

[0078] In one embodiment, one of the two clamping plates 61 is an active clamping plate, which is driven by the first driving member 8; the other is a passive clamping plate, which is rotated by the active clamping plate. The number of the first driving member 8 is one, which is connected to one of the clamping plates 61 (active clamping plate) and is used to drive one of the clamping plates 61 to rotate. The other clamping plate 61 (passive clamping plate) is connected to a first elastic member. When the two clamping plates 61 clamp the PCBA inward and the first driving member 8 drives one of the clamping plates 61 to rotate, the other clamping plate 61 can rotate together. This embodiment only requires one first driving member 8 to drive the two clamping plates 61 to rotate at the same time, and the structure is simple. The first elastic member has an elastic component along the first direction X and an elastic component along the second direction Y, thereby ensuring that the other clamping plate 61 can rotate with the clamping plate 61 connected to the first driving member 8.

[0079] In another preferred embodiment, there are two first driving members 8, which are respectively connected to the two clamping plates 61, and are used to simultaneously drive the two clamping plates 61 to rotate. The two first driving members 8 move synchronously, thereby realizing the simultaneous rotation of the two clamping plates 61, which can improve the correction efficiency.

[0080] Preferably, the line connecting the rotation centers of the two clamping plates 61 extends along the second direction Y, and when the two clamping plates 61 clamp the PCBA, the line connecting the rotation centers of the two clamping plates 61 passes through the center (centroid) of the PCBA, thereby ensuring that when the PCBA is rotationally corrected, the PCBA can rotate around its own center, which facilitates rapid adjustment of the PCBA to the correct position, thereby further improving the correction efficiency.

[0081] In this embodiment, the blocking member 7 can be arranged on the workbench 2. Figure 1 As shown, the blocking member 7 is disposed on one of the carriers 3. The blocking position of the blocking member 7 is adjustable to adapt to different types of PCBAs, and the blocking position of the blocking member 7 in the first direction X is configured such that when the blocking member 7 blocks the PCBA at the working station, the rotation center of the PCBA coincides with the center of the PCBA (the center is the centroid of the PCBA) when the deviation correction component 6 performs rotation correction on the PCBA.

[0082] Specifically, the blocking member 7 is operable to move along the first direction X, that is, the position of the blocking member 7 in the first direction X is adjustable, so that different types (for example, different lengths) of PCBAs can be blocked, and the rotation correction and packaging of PCBAs of different lengths can be completed. The blocking member 7 is configured to be adjustable in the first direction X to position the PCBA at a position where the centroid position of the PCBA coincides with the rotation center of the correction component 6. That is, at the work station, the centroid positions of different types of PCBAs during rotation correction or glue spraying coincide with the rotation center. For PCBAs of different lengths, the blocking member 7 is positioned at different positions to implement blocking.

[0083] With such arrangement, after the blocking member 7 of the present embodiment is blocked and positioned, the rotation center point of the clamping and correction for different PCBAs is the centroid of the PCBA, and a similar clamping and rotation correction strategy is used. The deflection adjustment rotation angle and displacement can be determined very conveniently, thereby meeting the correction requirements of different types of PCBAs.

[0084] The length of the PCBA described in the embodiments of the present application refers to the size of the PCBA along the first direction X. Figure 1 As shown, a first track 14 extending along the first direction X is connected to one of the carriers 3 , and the blocking member 7 is movably disposed on the first track 14 .

[0085] like Figure 5 As shown, in a preferred embodiment, the blocking member 7 is fixedly connected to one side of the glue spraying assembly 1. The glue spraying assembly 1 can move along the first direction X and the second direction Y, so that the blocking member 7 can move along the first direction X and the second direction Y with the glue spraying assembly 1, making the structure more integrated.

[0086] The present application does not limit the connection relationship between the glue spraying assembly 1 and the workbench 2, that is, the glue spraying assembly 1 and the workbench 2 may be connected or not connected. Preferably, the glue spraying assembly 1 is connected to the workbench 2. The workbench 2 is provided with a second track 15 and a third track (not shown) connected above the carrier 3, the second track 15 extends along the first direction X, and the third track extends along the second direction Y. The glue spraying assembly 1 is connected to the second track 15 or the third track, so that it can move along the first direction X and the second direction Y.

[0087] Specifically, the PCBA packaging device further includes a second driving member 9 connected to the blocking member 7, for driving the blocking member 7 to move up and down. The fixed end of the second driving member 9 is fixedly disposed on the glue spraying assembly 1. Figure 5 and Figure 6As shown, the fixed end of the second driving member 9 is fixed to the glue spraying assembly 1 through two upper and lower connecting members 17. The second driving member 9 can be a cylinder. The PCBA packaging device also includes a third driving member connected to the glue spraying assembly 1, which is used to drive the glue spraying assembly 1 to move along the first direction X and the second direction Y.

[0088] like Figure 4 As shown, a guiding inclined surface 611 is provided on the upper side of the clamping plate 61 facing the PCBA. The inclined surface 611 guides the PCBA to move upward to avoid the PCBA being clamped at a low position and making it difficult to achieve accurate spraying of the glue spraying component. By providing the inclined surface 611, it can be ensured that the PCBA is located at the uppermost clamping position when clamping the PCBA, and then the glue spraying component 1 will not be interfered by the position of the clamping plate 61 when spraying glue.

[0089] A blocking portion 612 is provided above the inclined surface 611. The distance between the two inclined surfaces 611 of the two clamping plates 61 gradually increases from bottom to top, so that the PCBA can move upward along the inclined surface 611. As the two clamping plates 61 continue to approach, the side of the PCBA first contacts the inclined surface 611, and then can move upward along the inclined surface 611, and finally be blocked by the blocking portion 612. At this time, the two clamping plates 61 are relatively static, so that the PCBA is clamped and fixed, and the problem of the PCBA clamping position being too low causing the glue spraying assembly to interfere with the clamping plate 61 position is avoided. In the clamped state, the PCBA is guided upward by the inclined surface 611 until it contacts and blocks the blocking portion 612, thereby clamping and fixing the PCBA.

[0090] Preferably, a first groove 62 is provided between the blocking portion 612 and the inclined surface 611, and the thickness of the first groove 62 may be equal to the thickness of the PCBA. The inclined surface 611 is used for guidance, and the side of the PCBA finally contacts the first groove 62, which can ensure that the clamping plate 61 clamps and fixes the PCBA. The blocking portion 612 is a blocking shield, and its thickness is less than 0.5 mm, and the shielding width is within 5 mm.

[0091] In this embodiment, when the lifting assembly 5 is in the deviation correction position, the PCBA is aligned on the horizontal plane with the inclined surface 611. Preferably, the thickness of the clamping plate 61 is greater than the thickness of the PCBA to ensure a better deviation adjustment effect.

[0092] Specifically, the lifting assembly 5 includes two lifting members respectively located inside the carrier 3. When the lifting assembly 5 is located at the standby position, the top surface of the lifting member is lower than or level with the top surface of the conveyor belt 4, and the distance between the two clamping plates 61 is greater than the width of the PCBA. When the lifting assembly 5 is located at the deviation correction position, the top surface of the lifting member is higher than the top surface of the conveyor belt 4.

[0093] In this embodiment, a top column (not shown) is provided at one end of the clamping plate 61 away from the supporting frame 3 in the second direction Y. Figure 3 As shown, the PCBA packaging device also includes a cam 63 that is in continuous contact with the side of the top column. The cam 63 rotates around the fixed axis to make the two clamping plates 61 approach or move away from each other. Taking the distance from the fixed axis to the side of the cam 63 as the radius of the side, the cam 63 has a first side with the smallest radius and a second side with the largest radius. The fixed axis of the cam 63 remains stationary relative to the carrier 3, and a second elastic member extending along the second direction Y is provided between the clamping plate 61 and the carrier 3. When the first side of the cam 63 contacts the top column, the second elastic member is in a natural state, and the distance between the two clamping plates 61 is the largest; when the cam 63 rotates to the second side to contact the top column, the second elastic member is compressed, and the two clamping plates 61 move inward to clamp the PCBA.

[0094] In this embodiment, the cam 63 is connected to a sixth driving member 12 for driving the cam 63 to rotate. The cam 63 is first located at a position where the first side edge contacts the top column. When a PCBA is located at a working station, the sixth driving member 12 drives the cam 63 to rotate so that the second side edge contacts the top column, and the two clamping plates 61 are close to clamp the PCBA.

[0095] like Figure 2 and Figure 3 As shown, a connecting plate 31 is fixedly connected to the side of the carrier 3 away from the conveyor belt 4. A photoelectric sensor 65 for sensing the position of the clamping plate 61 is provided on the connecting plate 31. A photoelectric sensing sheet 64 cooperating with the photoelectric sensor 65 is provided on the cam 63. The photoelectric sensing sheet 64 rotates around the fixed axis with the cam 63. The photoelectric sensor 65 is provided with a second groove. The photoelectric sensing sheet 64 can extend into the second groove to cooperate with the photoelectric sensor 65 for sensing. The photoelectric sensor 65 is electrically connected to the sixth driving member 12. When the lifting assembly 5 is in the standby position, the first side edge of the cam 63 contacts the top column, and the photoelectric sensing sheet 64 is located outside the second groove of the photoelectric sensor 65. When the clamping plate 61 needs to clamp the PCBA, the sixth driving member 12 drives the cam 63 to rotate. During the rotation of the cam 63, when the second side edge contacts the top column, the clamping plate 61 clamps the PCBA (at this time, the photoelectric sensing sheet 64 enters the second groove of the photoelectric sensor 65).

[0096] like Figure 2As shown, the PCBA packaging device further includes a fourth driving member 10 for driving the lifting assembly 5 to switch between the standby position and the deviation correction position. The workbench 2 may also be provided with a fifth driving member 11 for driving one of the carriers 3 to move in the second direction Y. In this embodiment, the first driving member 8, the third driving member, the fourth driving member 10 and the fifth driving member 11 may all be motors, or a suitable driving member type may be provided as required.

[0097] In this embodiment, the PCBA packaging device may further include a controller (not shown) electrically connected to the first driving member 8, the second driving member 9, the third driving member, the fourth driving member 10, the fifth driving member 11 and the camera respectively. The controller is used to control the start and stop of the first driving member 8, the second driving member 9, the third driving member, the fourth driving member 10, the fifth driving member 11 and the camera, and receive images taken by the camera.

[0098] In a specific application scenario, the glue spraying component 1 and the blocking member 7 are first moved to the working position and the blocking member 7 is located at the blocking position, and then the conveyor belt 4 is used to convey the PCBA, and the blocking member 7 blocks the PCBA at the working position, and then the second driving member 9 drives the blocking member 7 to move up to the avoidance position; the controller controls the fourth driving member 10 to start, and the fourth driving member 10 drives the lifting component 5 to move from the standby position to the deviation correction position, so that the PCBA is lifted, and then the fourth driving member 10 is shut down. Then the sixth driving member 12 is controlled to start, and the driving cam 63 is rotated to make the two clamping plates 61 approach each other, and after clamping the PCBA on the lifting component 5 located at the deviation correction position, the sixth driving member 12 is shut down. Then the fourth driving member 10 can be controlled to start at the same time to move the lifting component 5 from the deviation correction position to the standby position, and the camera can be controlled to take a picture of the PCBA to obtain the offset angle of the PCBA. The first driving member 8 is controlled to start, and the clamping plate 61 is driven to rotate according to the offset angle, and then the first driving member 8 is shut down. Then the component to be sprayed with glue 1 is controlled to perform the spraying and packaging task. After spraying is completed, the glue spraying assembly 1 and the blocking member 7 are removed from the working station, the fourth driving member 10 is controlled to start, and the fourth driving member 10 drives the lifting assembly 5 to move from the standby position to the deviation correction position, and the sixth driving member 12 is controlled to start, and the driving cam 63 rotates to make the two clamping plates 61 move away from each other, so that the clamping plates 61 release the PCBA. Then the fourth driving member 10 drives the lifting assembly 5 to move from the deviation correction position to the standby position, and the conveyor belt 4 conveys the packaged PCBA at the working station to the next station, and then the glue spraying assembly 1 and the blocking member 7 are moved to the working station and the blocking member 7 is located at the blocking position, and the next PCBA to be packaged is conveyed to the working station, and the above operation is performed again.

[0099] like Figure 7 As shown, the embodiment of the present application also provides a PCBA packaging method, comprising the following steps:

[0100] Step S10: Position the PCBA block at the working station;

[0101] Step S20: lifting the PCBA located at the working station to a deviation correction position;

[0102] Step S30: Control the deviation correction component 6 to clamp the PCBA for rotation correction;

[0103] Step S40: performing spray packaging on the PCBA.

[0104] The PCBA packaging method provided in this embodiment can be performed by any of the above-mentioned PCBA packaging devices. The method implementation corresponds to the device implementation, which can solve the technical problems solved by the device implementation and achieve the technical effects of the device implementation accordingly. The specific application will not be repeated here.

[0105] In this embodiment, the PCBA can be blocked and positioned at the working station by the blocking member 7, and the PCBA can be lifted to the correction position by the lifting assembly 5. At this time, the correction assembly 6 can clamp the PCBA for rotation correction to adjust the angle of the PCBA so that the angle of the PCBA is accurate during packaging, so that the glue spraying assembly 1 can accurately spray and package the PCBA. By adjusting the angle of the PCBA by rotation correction, the angle of the PCBA can be quickly and reliably adjusted before packaging to avoid PCBA deviation. After the correction assembly 6 performs rotation correction on the PCBA, it still clamps the PCBA. When the glue spraying assembly 1 performs spray packaging on the PCBA, the correction assembly 6 clamps the PCBA to ensure that the angle of the PCBA is fixed and no deviation occurs, thereby ensuring high packaging accuracy.

[0106] It should be noted that, in the description of this specification, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this specification, unless otherwise specified, the meaning of "plurality" is two or more.

[0107] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0108] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0109] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0110] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0111] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A PCBA packaging device, characterized in that: include: Glue spraying assembly for spraying glue onto PCBA; a workbench located below the glue spraying assembly; A lifting assembly disposed on the workbench for carrying the PCBA, having a standby position and a deviation correction position higher than the standby position; A deviation correction component is arranged on the workbench, and the deviation correction component can operably clamp and release the PCBA and perform rotational deviation correction on the PCBA; The blocking member has a blocking position for blocking the PCBA at a working station and a avoiding position higher than the blocking position; when the blocking member blocks the PCBA at the working station, the lifting assembly lifts the PCBA to a deviation correction position, and the deviation correction assembly clamps the PCBA for rotation correction; The blocking position of the blocking member is adjustable, and the blocking position is configured such that: when the blocking member blocks the PCBA at the working station, the rotation center of the PCBA coincides with the center of the PCBA when the deviation correction assembly performs rotation correction on the PCBA; the blocking member can be manipulated to move along a first direction to change its blocking position, and the first direction is parallel to the conveying direction of the PCBA; The deviation-correcting assembly comprises: two clamping plates respectively clamped on both sides of the PCBA; the sides of the clamping plates facing the PCBA are provided with inclined surfaces for guiding the PCBA to move upward.

2. The PCBA packaging device according to claim 1, characterized in that: The blocking member is fixedly connected to one side of the glue spraying assembly. The glue spraying assembly can move along the first direction and a second direction. The second direction is perpendicular to the first direction and parallel to a horizontal plane.

3. The PCBA packaging device according to claim 2, characterized in that: A blocking portion is provided above the inclined surface; the blocking portion is a blocking shield, and its thickness is less than 0.5 mm.

4. The PCBA packaging device according to claim 3, characterized in that: The blocking width of the blocking portion is within 5 mm.

5. The PCBA packaging device according to claim 2, characterized in that: The PCBA packaging device further includes: A first driving member connected to the deviation-correcting assembly, used to drive the deviation-correcting assembly to rotate; A second driving member connected to the blocking member, used to drive the blocking member to move up and down; a fixed end of the second driving member is fixedly disposed on the glue spraying assembly; The third driving member connected to the glue spraying assembly is used to drive the glue spraying assembly to move along the first direction and the second direction.

6. The PCBA packaging device according to claim 5, characterized in that: There are two first driving members, which are respectively connected to the two clamping plates and are used to drive the two clamping plates to rotate simultaneously.

7. The PCBA packaging device according to claim 6, characterized in that: The PCBA packaging device also includes a camera arranged on the workbench; after the lifting assembly lifts the PCBA to the deviation correction position and the deviation correction assembly clamps the PCBA, the camera can take a picture of the PCBA to obtain the deviation angle of the PCBA, and the first driving member can drive the deviation correction assembly to rotate according to the deviation angle.

8. A PCBA packaging method, characterized in that: The PCBA packaging method uses the PCBA packaging device as described in any one of claims 1 to 7, and the PCBA packaging method includes the following steps: Position the PCBA block at the work station; Lifting the PCBA located at the working station to a deviation correction position; Control the correction component to clamp the PCBA for rotation correction; The PCBA is subjected to spray packaging.

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