PCBA packaging device and PCBA deviation correction packaging method

Abstract

The present application discloses a PCBA packaging device and a PCBA deviation correction 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 arranged on the workbench for carrying the PCBA; the lifting assembly has a standby position and a deviation correction position higher than the standby position; a deviation correction assembly arranged on the workbench, which can clamp and release the PCBA in an operable manner; a first driving member connected to the deviation correction assembly, which is used to drive the deviation correction assembly to rotate; when the lifting assembly lifts the PCBA to the deviation correction position, the deviation correction assembly can clamp the PCBA for rotational deviation correction. The PCBA packaging device and PCBA deviation correction packaging method provided in this specification can quickly and reliably adjust the angle of the PCBA before packaging to avoid PCBA deviation.

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 deviation correction 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 main deep-seated reasons for the above problems are: first, the PCBA is released again after clamping, and the PCBA will be released and slightly moved after the clamping plate is withdrawn; second, in order to avoid spraying interference, the PCBA will be lifted again to the spraying height position after releasing the PCBA. In the lifting process, the PCBA will inevitably be slightly moved again. When the displacement is superimposed, the overall spray packaging will still produce a large disadvantage.

[0006] In view of the above problems found in the research, an object of the present invention is to provide a PCBA packaging device and a PCBA deviation correction packaging method, which can quickly and reliably adjust the angle of the PCBA before packaging to avoid PCBA deviation.

[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 is arranged on the workbench for carrying the PCBA; the lifting assembly has 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 be operated to clamp and release the PCBA; the deviation correction component comprises: two clamping plates for clamping the two sides of the PCBA respectively; the side of the clamping plate facing the PCBA is provided with an inclined surface for guiding the PCBA to move upward;

[0012] The first driving member connected to the deflection correction component is used to drive the deflection correction component to rotate; when the lifting component lifts the PCBA to the deflection correction position, the deflection correction component can clamp the PCBA for rotational deflection correction; when the deflection correction component clamps the PCBA, the glue spraying component moves back and forth in the horizontal direction with a constant height position, and sprays UV glue to the target glue spraying area of ​​the PCBA.

[0013] 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.

[0014] 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.

[0015] As a preferred embodiment, one of the two clamping plates is an active clamping plate, which is driven by the first driving member; the other is a passive clamping plate, which is rotated by the active clamping plate; 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.

[0016] As a preferred embodiment, the number of the first driving member is one, which is connected to one of the clamping plates and is used to drive one of the clamping plates to rotate; the other clamping plate is connected to a first elastic member; the two clamping plates clamp the PCBA inward and when the first driving member drives one of the clamping plates to rotate, the other clamping plate can rotate along with it.

[0017] 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.

[0018] As a preferred implementation, an inclined surface for guiding is provided above the side of the clamping plate facing the PCBA, and a blocking portion is provided above the inclined surface.

[0019] As a preferred embodiment, a conveying assembly is provided on the workbench for conveying the PCBA to a work station; the lifting assembly and the deviation correction assembly respectively lift and rotate the PCBA located at the work station for deviation correction.

[0020] As a preferred embodiment, the conveying assembly includes two conveyor belts extending along a first direction, and two carrier frames relatively supporting the conveyor belts; one of the carrier frames is fixedly arranged on the workbench, and the other carrier frame is movably arranged on the workbench and can move along a second direction; the second direction is perpendicular to the first direction; the lifting assembly is arranged between the two carrier frames, and at least part of the correction assembly is located above the carrier frames.

[0021] 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.

[0022] As a preferred embodiment, the clamping plate is provided with a top column at one end away from the carrier in the second direction, and the PCBA packaging device also includes a cam that continuously contacts the side of the top column, and the cam rotates around a fixed axis to make the two clamping plates approach or move away from each other; the cam is connected to a second driving member for driving the cam to rotate; the carrier is fixedly connected to a connecting plate on the side away from the conveyor belt, and a photoelectric sensor for sensing the position of the clamping plate is provided on the connecting plate, and a photoelectric sensing sheet that cooperates with the photoelectric sensor is provided on the cam, and the photoelectric sensing sheet rotates around the fixed axis together with the cam.

[0023] As a preferred embodiment, the PCBA packaging device further includes:

[0024] a third driving member for driving the lifting assembly to switch between the standby position and the deviation correcting position;

[0025] a fourth driving member for driving one of the carriers to move in the second direction;

[0026] A controller electrically connected to the first drive member, the second drive member, the third drive member, the fourth 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 and the camera, and receive images taken by the camera.

[0027] The embodiment of the present specification also provides a PCBA deflection correction packaging method, the PCBA deflection correction packaging method uses any of the above PCBA packaging devices, and the PCBA deflection correction packaging method includes the following steps:

[0028] Transfer PCBA to the workstation;

[0029] Lifting the PCBA transferred to the work station to a deviation correction position;

[0030] Control the correction component to clamp the PCBA for rotation correction;

[0031] The PCBA is subjected to spray packaging.

[0032] Beneficial Effects

[0033] The PCBA packaging device provided in this embodiment is provided with a lifting component and a correction component on the workbench. When the lifting component lifts the PCBA to the correction position, the correction component 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 component 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 component performs rotation correction on the PCBA, it still clamps the PCBA, and there is no secondary lifting of the PCBA. When the glue spraying component performs spray packaging on the PCBA, the correction component clamps the PCBA to ensure that the angle of the PCBA is fixed and no deviation occurs, thereby ensuring high packaging accuracy.

[0034] 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.

[0035] 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.

[0036] 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

[0037] 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.

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a PCBA packaging device provided in this embodiment;

[0039] Figure 2 for Figure 1 A schematic diagram of a related structure on a carrier frame;

[0040] Figure 3 for Figure 2 An enlarged schematic diagram of the structure after the clamping plate and the connecting plate are removed;

[0041] Figure 4A schematic diagram of the structure of a clamping plate provided in this embodiment;

[0042] Figure 5 The following is a flowchart of the steps of a PCBA deviation correction packaging method provided in this embodiment.

[0043] Description of reference numerals:

[0044] 1. Workbench; 2. Carrying frame; 21. Connecting plate; 3. Conveyor belt; 4. Lifting assembly; 5. Correction assembly; 51. Clamping plate; 511. Inclined surface; 512. Blocking part; 52. First groove; 53. Cam; 54. Photoelectric sensing sheet; 55. Photoelectric sensor; 6. First driving member; 7. Second driving member; 8. Third driving member; 9. Fourth driving member; 10. Work station; 11. Rotating platform; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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.

[0048] See also Figures 1 to 4 The embodiment of the present application provides a PCBA packaging device, including a glue spraying assembly (not shown), a workbench 1 , a lifting assembly 4 , a deviation correcting assembly 5 and a first driving member 6 .

[0049] Among them, the glue spraying assembly 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 assembly can be above 200PPI, and preferably the spraying accuracy can be above 300PPI. The workbench 1 is located below the glue spraying assembly. The lifting assembly 4 is arranged on the workbench 1, and is used to carry the PCBA. The lifting assembly 4 has a standby position and a correction position higher than the standby position. The correction assembly 5 is arranged on the workbench 1, and the correction assembly 5 can clamp and release the PCBA in an operable manner. The first driving member 6 is connected to the correction assembly 5, and is used to drive the correction assembly 5 to rotate. When the lifting assembly 4 lifts the PCBA to the correction position, the correction assembly 5 can clamp the PCBA for rotation correction. The glue spraying assembly sprays the target glue spraying area of ​​the PCBA in the state where the correction assembly 5 clamps the PCBA. The correction assembly 5 still maintains the clamping state of the PCBA after rotating and correcting the PCBA, and releases the PCBA after the spraying is completed. The glue spraying component sprays UV glue with a viscosity of 2-80 cP (at 40-50° C.) onto the PCBA.

[0050] When the correction component 5 clamps the PCBA, the glue spraying component 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 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 of this embodiment does not change according to the glue spraying area, and it still maintains horizontal reciprocating movement at a certain height position.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] During the glue spraying process, the glue spraying assembly is positioned above the highest electronic component, and the distance between the glue spraying assembly and the highest electronic component is controlled to be less than 2 mm. Furthermore, the distance between the glue spraying assembly and the highest electronic component is controlled to be less than 1 mm.

[0055] In order to avoid interference between the electronic components on the PCBA and the moving path of the glue spraying assembly, the glue (glue droplets) will drift, and the distance between the glue spraying assembly and the PCBA should not be too large. The glue spraying assembly 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 speed damage is also fast, which is prone to drifting problems. To avoid this problem, the distance between the glue spraying assembly and the highest electronic component is controlled to be less than 2mm, or even within 1mm.

[0056] During the glue spraying process, the relative height between the glue spraying component and the PCBA remains unchanged. During the glue spraying process, the glue spraying component 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.

[0057] The PCBA packaging device provided in this embodiment is provided with a lifting component 4 and a correction component 5 on the workbench 1. When the lifting component 4 lifts the PCBA to the correction position, the correction component 5 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 component 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 component 5 performs rotation correction on the PCBA, it still clamps the PCBA. When the glue spraying component performs spray packaging on the PCBA, the correction component 5 clamps the PCBA to ensure that the angle of the PCBA is fixed and no deviation occurs, thereby ensuring high packaging accuracy.

[0058] In this embodiment, the PCBA packaging device further includes a camera (not shown) disposed on the workbench 1. After the lifting assembly 4 lifts the PCBA to the deviation correction position and the deviation correction assembly 5 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 6 can drive the deviation correction assembly 5 to rotate according to the deviation angle.

[0059] 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 6 drives the correction component 5 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.

[0060] 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.

[0061] In this embodiment, a conveying assembly is provided on the workbench 1, and the conveying assembly is used to convey the PCBA to the work station 10. The lifting assembly 4 and the deviation correction assembly 5 can lift and rotate the PCBA located at the work station 10 for deviation correction, that is, the deviation correction assembly 5 and the lifting assembly 4 are both arranged at the work station 10.

[0062] Specifically, the conveying assembly includes two conveyor belts 3 extending along a first direction X, and two carriers 2 that bear the conveyor belts 3 relative to each other. One of the carriers 2 is fixed on the workbench 1, and the other carrier 2 is movably disposed on the workbench 1 and can move along a second direction Y to change the distance between the fixed carrier 2, so that the PCBA packaging device can be applied to PCBAs of different widths. The lifting assembly 4 is disposed between the two carriers 2, and at least part of the deviation correction assembly 5 is located above the carrier 2.

[0063] 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.

[0064] In this embodiment, the deviation correction component 5 includes two clamping plates 51 respectively arranged on both sides of the lifting component 4. The opposite sides of the two clamping plates 51 are used to clamp and adjust the angle of the PCBA. When the lifting component 4 is in the deviation correction position, the two clamping plates 51 can clamp the PCBA on the lifting component 4 inwardly, and the distance between the two clamping plates 51 is equal to the width of the PCBA. One of the two clamping plates 51 is an active clamping plate, which is driven by the first driving member 6; the other is a passive clamping plate, which is rotated by the active clamping plate.

[0065] Specifically, Figure 3As shown, a rotating platform 11 is provided on the side of the carrier 2 facing away from the conveyor belt 3, and the clamping plate 51 is fixedly mounted on the rotating platform 11. The rotating axis of the rotating platform 11 extends in the vertical direction, and the rotating platform 11 is connected to the moving end of the first driving member 6. The first driving member 6 can drive the rotating platform 11 to rotate in the vertical direction, thereby driving the clamping plate 51 to rotate in the vertical direction.

[0066] In one embodiment, the number of the first driving member 6 is one, which is connected to one of the clamping plates 51 and is used to drive one of the clamping plates 51 (active clamping plate) to rotate. The other clamping plate 51 (passive clamping plate) is connected to a first elastic member. When the two clamping plates 51 clamp the PCBA inward and the first driving member 6 drives one of the clamping plates 51 to rotate, the other clamping plate 51 can rotate together. This embodiment only requires one first driving member 6 to drive the two clamping plates 51 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 51 can rotate with the clamping plate 51 connected to the first driving member 6.

[0067] In another embodiment, there are two first driving members 6, which are respectively connected to the two clamping plates 51, and are used to simultaneously drive the two clamping plates 51 to rotate. The two first driving members 6 move synchronously, so that the two clamping plates 51 rotate simultaneously, which can improve the correction efficiency.

[0068] Preferably, the line connecting the rotation centers of the two clamping plates 51 extends along the second direction Y, and when the two clamping plates 51 clamp the PCBA, the line connecting the rotation centers of the two clamping plates 51 passes through the center of the PCBA, thereby ensuring that when the PCBA is rotationally corrected, the PCBA can rotate around its own center, making it easy to quickly adjust the PCBA to the correct position, thereby further improving the correction efficiency.

[0069] like Figure 4 As shown, a guiding inclined surface 511 is provided on the upper side of the clamping plate 51 facing the PCBA, and the inclined surface 511 guides the PCBA to move upward to avoid the clamping position of the PCBA being too low to achieve accurate spraying of the glue-sprayed component. By providing the inclined surface 511, it can be ensured that the PCBA is located at the uppermost clamping position when clamping the PCBA, and then the glue-spraying component will not be interfered by the position of the clamping plate 51 when spraying glue.

[0070] A blocking portion 512 is provided above the inclined surface 511. The distance between the two inclined surfaces 511 of the two clamping plates 51 gradually increases from bottom to top, so that the PCBA can move upward along the inclined surface 511. As the two clamping plates 51 continue to approach, the side of the PCBA first contacts the inclined surface 511, and then can move upward along the inclined surface 511, and finally be blocked by the blocking portion 512. At this time, the two clamping plates 51 are relatively still, so as to achieve the clamping and fixing of the PCBA, and avoid the problem that the clamping position of the PCBA is too low, causing the spray glue assembly to interfere with the position of the clamping plate 51. In the clamped state, the PCBA is guided upward by the inclined surface 511 until it contacts and blocks the blocking portion 512, thereby clamping and fixing the position of the PCBA.

[0071] Preferably, a first groove 52 is provided between the blocking portion 512 and the inclined surface 511, and the thickness of the first groove 52 may be equal to the thickness of the PCBA. The inclined surface 511 is used for guidance, and the side of the PCBA finally contacts the first groove 52, which can ensure that the clamping plate 51 clamps and fixes the PCBA. The blocking portion 512 is a blocking shield, and its thickness is less than 0.5 mm, and the shielding width is within 5 mm.

[0072] In this embodiment, when the lifting assembly 4 is in the deviation correction position, the PCBA is aligned on the horizontal plane with the inclined surface 511. Preferably, the thickness of the clamping plate 51 is greater than the thickness of the PCBA to ensure a better deviation adjustment effect.

[0073] Specifically, the lifting assembly 4 includes two lifting members respectively located inside the carrier 2. When the lifting assembly 4 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 3, and the distance between the two clamping plates 51 is greater than the width of the PCBA. When the lifting assembly 4 is located at the deviation correction position, the top surface of the lifting member is higher than the top surface of the conveyor belt 3.

[0074] In this embodiment, a top column (not shown) is provided at one end of the clamping plate 51 away from the supporting frame 2 in the second direction Y. Figure 3 As shown, the PCBA packaging device also includes a cam 53 that is in continuous contact with the side of the top column. The cam 53 rotates around the fixed axis to make the two clamping plates 51 approach or move away from each other. Taking the distance from the fixed axis to the side of the cam 53 as the radius of the side, the cam 53 has a first side with the smallest radius and a second side with the largest radius. The fixed axis of the cam 53 remains stationary relative to the carrier 2, and a second elastic member extending along the second direction Y is provided between the clamping plate 51 and the carrier 2. When the first side of the cam 53 contacts the top column, the second elastic member is in a natural state, and the distance between the two clamping plates 51 is the largest; when the cam 53 rotates to the second side to contact the top column, the second elastic member is compressed, and the two clamping plates 51 move inward to clamp the PCBA.

[0075] In this embodiment, the cam 53 is connected to a second driving member 7 for driving the cam 53 to rotate. The cam 53 is first located at a position where the first side edge contacts the top column. When a PCBA is located at the working station 10, the second driving member 7 drives the cam 53 to rotate so that the second side edge contacts the top column, and the two clamping plates 51 are close to clamp the PCBA.

[0076] like Figure 3 As shown, a connecting plate 21 is fixedly connected to the side of the carrier 2 away from the conveyor belt 3. A photoelectric sensor 55 for sensing the position of the clamping plate 51 is provided on the connecting plate 21. A photoelectric sensing sheet 54 cooperating with the photoelectric sensor 55 is provided on the cam 53. The photoelectric sensing sheet 54 rotates around the fixed axis together with the cam 53. The photoelectric sensor 55 is provided with a second groove. The photoelectric sensing sheet 54 can extend into the second groove to cooperate with the photoelectric sensor 55 for sensing. The photoelectric sensor 55 is electrically connected to the second driving member 7. When the lifting assembly 4 is in the standby position, the first side edge of the cam 53 contacts the top column, and the photoelectric sensing sheet 54 is located outside the second groove of the photoelectric sensor 55. When the clamping plate 51 needs to clamp the PCBA, the second driving member 7 drives the cam 53 to rotate. During the rotation of the cam 53, when the second side edge contacts the top column, the clamping plate 51 clamps the PCBA (at this time, the photoelectric sensing sheet 54 enters the second groove of the photoelectric sensor 55).

[0077] like Figure 1 and Figure 2 As shown, the PCBA packaging device further includes a third driving member 8 for driving the lifting assembly 4 to switch between the standby position and the deviation correction position. The workbench 1 can be arranged on the support frame. The workbench 1 can also be provided with a fourth driving member 9 for driving one of the carriers 2 to move in the second direction Y. In this embodiment, the first driving member 6, the second driving member 7, the third driving member 8 and the fourth driving member 9 can all be motors, or a suitable driving member type can be set as required.

[0078] In this embodiment, the PCBA packaging device may further include a controller (not shown) electrically connected to the first driving member 6, the second driving member 7, the third driving member 8, the fourth driving member 9 and the camera respectively. The controller is used to control the start and stop of the first driving member 6, the second driving member 7, the third driving member 8, the fourth driving member 9 and the camera, and receive images taken by the camera.

[0079] In a specific application scenario, the conveyor belt 3 is used to convey the PCBA to the work station 10, and the controller controls the third driving member 8 to start, and the third driving member 8 drives the lifting assembly 4 to move from the standby position to the deviation correction position, so that the PCBA is lifted, and then the third driving member 8 is shut down. Then the second driving member 7 is controlled to start, and the driving cam 53 is rotated to make the two clamping plates 51 approach each other. After clamping the PCBA on the lifting assembly 4 at the deviation correction position, the second driving member 7 is shut down. Then the third driving member 8 can be controlled to start at the same time to move the lifting assembly 4 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 6 is controlled to start, and the clamping plate 51 is driven to rotate according to the offset angle, and then the first driving member 6 is shut down. Then the component to be sprayed is controlled to perform the spraying and packaging task. After spraying is completed, the third driving member 8 is controlled to start, and the third driving member 8 drives the lifting assembly 4 to move from the standby position to the deviation correction position, and the second driving member 7 is controlled to start, and the driving cam 53 rotates to make the two clamping plates 51 move away from each other, so that the clamping plates 51 release the PCBA. Then the third driving member 8 drives the lifting assembly 4 to move from the deviation correction position to the standby position, and the conveyor belt 3 conveys the packaged PCBA located at the working station 10 to the next station, and conveys the next PCBA to be packaged to the working station 10, and the above operation is performed again.

[0080] like Figure 5 As shown, the embodiment of the present application also provides a PCBA deviation correction packaging method, comprising the following steps:

[0081] Step S10: moving the PCBA to the working station 10;

[0082] Step S20: lifting the PCBA transferred to the working station 10 to a deviation correction position;

[0083] Step S30: Control the deviation correction component 5 to clamp the PCBA for rotation correction;

[0084] Step S40: performing spray packaging on the PCBA.

[0085] The PCBA deviation correction 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.

[0086] In this embodiment, after the PCBA is transferred to the work station 10, it can be lifted to the correction position by the lifting component 4. At this time, the correction component 5 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 component 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 component 5 performs rotation correction on the PCBA, it still clamps the PCBA. When the glue spraying component performs spray packaging on the PCBA, the correction component 5 clamps the PCBA to ensure that the angle of the PCBA is fixed and no deviation occurs, thereby ensuring high packaging accuracy.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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; The workbench is provided with a conveying component for conveying the PCBA to a work station; A lifting assembly disposed on the workbench for carrying the PCBA; the lifting assembly has a standby position and a deviation correction position higher than the standby position; A deviation-correcting component disposed on the workbench, the deviation-correcting component can manipulably clamp and release the PCBA; The lifting component and the deviation-correcting component respectively lift and rotate the PCBA located at the working station for deviation correction; The deviation correction assembly comprises: two clamping plates for clamping the two sides of the PCBA respectively; the side of the clamping plate facing the PCBA is provided with an inclined surface for guiding the PCBA to move upward; a blocking part is provided above the inclined surface; the blocking part is a blocking shield, and its thickness is less than 0.5 mm; The first driving member connected to the deflection correction component is used to drive the deflection correction component to rotate; when the lifting component lifts the PCBA to the deflection correction position, the deflection correction component can clamp the PCBA for rotational deflection correction; when the deflection correction component clamps the PCBA, the glue spraying component moves back and forth in the horizontal direction with a constant height position, and sprays UV glue to the target glue spraying area of ​​the PCBA; 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.

2. The PCBA packaging device according to claim 1, characterized in that: One of the two clamping plates is an active clamping plate, which is driven by the first driving member; the other is a passive clamping plate, which is rotated by the active clamping plate; when the lifting assembly is located at the deviation correction position, the two clamping plates can clamp the PCBA on the lifting assembly inwardly, and the distance between the two clamping plates is equal to the width of the PCBA.

3. The PCBA packaging device according to claim 1, characterized in that: The number of the first driving member is one, which is connected to one of the clamping plates and is used to drive one of the clamping plates to rotate; the other clamping plate is connected to a first elastic member; the two clamping plates clamp the PCBA inwardly and when the first driving member drives one of the clamping plates to rotate, the other clamping plate can rotate along with it.

4. The PCBA packaging device according to claim 1, 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.

5. The PCBA packaging device according to claim 1, characterized in that: The conveying assembly includes two conveyor belts extending along a first direction, and two carrier frames relatively supporting the conveyor belts; one of the carrier frames is fixedly arranged on the workbench, and the other carrier frame is movably arranged on the workbench and can move along a second direction; the second direction is perpendicular to the first direction; the lifting assembly is arranged between the two carrier frames, and at least part of the correction assembly is located above the carrier frames.

6. The PCBA packaging device according to claim 5, characterized in that: 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 deviation correction position, the top surface of the lifting member is higher than the top surface of the conveyor belt.

7. The PCBA packaging device according to claim 6, characterized in that: A top column is provided at one end of the clamping plate away from the carrier in the second direction, and the PCBA packaging device also includes a cam that is continuously in contact with the side of the top column, and the cam rotates around a fixed axis to make the two clamping plates approach or move away from each other; the cam is connected to a second driving member for driving the cam to rotate; a connecting plate is fixedly connected to the side of the carrier away from the conveyor belt, and a photoelectric sensor for sensing the position of the clamping plate is provided on the connecting plate, and a photoelectric sensing sheet that cooperates with the photoelectric sensor is provided on the cam, and the photoelectric sensing sheet rotates around the fixed axis together with the cam.

8. The PCBA packaging device according to claim 7, characterized in that: The PCBA packaging device further includes: a third driving member for driving the lifting assembly to switch between the standby position and the deviation correcting position; a fourth driving member for driving one of the carriers to move in the second direction; A controller electrically connected to the first drive member, the second drive member, the third drive member, the fourth 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 and the camera, and receive images taken by the camera.

9. A PCBA deviation correction packaging method, characterized in that: The PCBA deflection correction packaging method uses the PCBA packaging device as described in any one of claims 1 to 8, and the PCBA deflection correction packaging method includes the following steps: Transfer PCBA to the workstation; Lifting the PCBA transferred to the work 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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