Grabbing device for power-on detection of PCBA (Printed Circuit Board Assembly) board

Abstract

The invention discloses a grabbing device for power-on detection of a PCBA board, and relates to the technical field of PCBA board production, and the grabbing device comprises a support frame, one side of which is provided with a rotating frame; each grabbing assembly comprises an adjusting unit and a grabbing unit, and the multiple grabbing assemblies are installed on one side of the rotating frame at equal intervals through a set of adjusting frames; the connecting box is installed on the upper side of the supporting frame and located on the moving path of each grabbing assembly, and a cleaning module and a cleaning assembly are installed on the two sides of the interior of the connecting box correspondingly; and the identification module is mounted at the top in the connecting box. According to the PCBA board grabbing device, through the multiple adjusting frames and the grabbing assemblies, PCBA boards can be continuously grabbed and transferred when the number of the PCBA boards is large, so that the working efficiency of equipment can be improved, and during grabbing, the grabbing assemblies are matched with the adjusting frames, and the positions and angles of the PCBA boards can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of PCBA board production, and in particular to a grabbing device for electrical detection on a PCBA board. Background Art

[0002] In the manufacturing process of modern electronic products, printed circuit board assemblies (PCBAs) are key core components. With the miniaturization and complexity of electronic devices, the functionality and reliability requirements of PCBAs are constantly increasing. In order to ensure that the PCBA meets the design requirements before it is put into use, strict power-on testing is usually required, that is, by powering on the components and electrical connections on the circuit board to verify its electrical performance and functional integrity.

[0003] After searching, a Chinese patent (publication number: CN220641615U) discloses a PCBA board grabbing device, which includes a control base, and a grabbing mechanism is fixedly connected to the upper end of the control base. The grabbing mechanism includes a second motor, a transmission shaft, a protective shell, an extension rod, a first electric push rod, a second electric push rod, a connecting plate, an electric rotating shaft, a clamping plate, a protective pad and a shovel plate. The upper end of the control base is fixedly connected to the protective shell, the output shaft of the second motor is fixedly connected to the transmission shaft through a coupling, and the upper end outer wall of the transmission shaft is fixedly connected to the extension rod.

[0004] During the power-on detection process, how to efficiently and accurately grab the PCBA from the conveyor belt or tray and accurately position it on the detection equipment is one of the key links to achieve detection automation, and how to improve the detection quality and efficiency is also one of the research and development directions. Therefore, the present invention proposes a grabbing device for PCBA board power-on detection. Summary of the invention

[0005] The object of the present invention is to provide a grabbing device for PCBA board power-on detection to solve the problems mentioned in the above background technology.

[0006] The present invention can be implemented by the following technical scheme: a grabbing device for PCBA board power-on detection, comprising a support frame, a rotating frame is installed on one side of the support frame, a plurality of equally spaced adjustment frames are installed on the outer side of the output end of the rotating frame, a grabbing assembly is installed on one end of each adjustment frame facing away from the rotating frame, and each adjustment frame is provided with a moving part for X-axis and Y-axis on a plane, which is used to adjust the position of the PCBA board after the grabbing assembly grabs it, so as to facilitate subsequent power-on detection;

[0007] A connection box is installed on the upper side of the support frame, and the connection box is located on the moving path of each grabbing component. When each grabbing component rotates based on the corresponding adjustment frame and the support frame, it passes through the connection box;

[0008] Each of the grabbing components includes an adjustment unit, and a grabbing unit is installed at the output end of the adjustment unit, and the grabbing unit is used to grab and move the PCBA board;

[0009] Among them, the adjustment unit includes height adjustment and angle adjustment. The height adjustment is used to adjust the position height of the grabbing unit. When the grabbing unit moves to the upper side of the conveying equipment for conveying the PCBA board and the upper side of the power-on detection equipment, the height of the grabbing unit is adjusted to facilitate the grabbing and placement of the PCBA board;

[0010] A cleaning module is installed inside the connection box, a cleaning component is installed on one side of the cleaning module inside the connection box, and an identification module is installed on the top of the connection box;

[0011] After the grabbing assembly moves the PCBA board into the connection box, the grabbing unit in the grabbing assembly adjusts the front of the PCBA board to face the identification module, wherein the front of the PCBA board is a side that is set upward when it is on the power-on detection device, and at this time, the plane where the PCBA board is located is parallel to the plane when it is in the power-on detection device;

[0012] The identification module identifies the position of the PCBA board, obtains real-time position data, and compares it with the preset position data. When there is a difference between the real-time position data and the preset position data, the adjustment data is generated, and the two groups of moving parts in the adjustment frame adjust the position of the grabbing component based on the adjustment data;

[0013] At the same time, the recognition module recognizes impurities on the front of the PCBA board. When impurities exist on the PCBA board, the cleaning module cleans the PCBA board.

[0014] A further technical improvement of the present invention is that the adjustment unit comprises a lifting drive frame, the lifting drive frame is used to be connected to the output end of the adjustment frame, and the output end of the lifting drive frame is installed with a first rotating assembly;

[0015] The lifting drive frame is used to adjust the height of the grabbing unit in the adjustment unit;

[0016] The first rotating assembly is used for adjusting the angle of the grabbing unit in the adjusting unit, and the first rotating assembly is based on the rotation of the output end of the rotating frame.

[0017] A further technical improvement of the present invention is that the grabbing unit comprises a connecting assembly, both sides of the connecting assembly are equipped with stroke cylinders, and the output ends of the two groups of stroke cylinders are equipped with a second rotating assembly;

[0018] The output ends of the two sets of second rotating components are coaxially arranged, and an assembly frame is installed between them;

[0019] A plurality of clamping units are installed on the side of the assembly frame;

[0020] After each clamping unit is started synchronously, the PCBA board is grabbed;

[0021] After the corresponding grabbing assembly enters the connection box, the grabbing unit is first in a state where the PCBA board is facing downward, and then the stroke cylinder adjusts the height of the assembly frame to expand the distance between the grabbing unit and the connection assembly to make room for the PCBA board to rotate. Finally, each second rotating assembly is started to drive the PCBA board to rotate 180°, turning the PCBA board to a state where the front is facing the identification module.

[0022] A further technical improvement of the present invention is that: the cleaning assembly includes a swing assembly, a frame and an adhesion assembly, the swing assembly is connected to the connection box, and the output end of the swing assembly is connected to one side of the frame, the other side of the frame is rotationally connected to the connection box, and the position where the frame is rotationally connected to the connection box is axially arranged with the output end of the swing assembly;

[0023] After the swing assembly is started, the frame is swung.

[0024] A further technical improvement of the present invention is that a storage mechanism is installed at the top end of the frame, a steering roller is installed at the bottom end of the swing assembly, and two sets of adjacent positioning rollers are installed between the storage mechanism and the steering roller inside the swing assembly.

[0025] A further technical improvement of the present invention is that: the storage mechanism includes two groups of winding units, one end of the adhesive component is connected to one group of winding units, and then the adhesive component passes between the two groups of positioning rollers, the two groups of positioning rollers limit the adhesive component, and then the adhesive component bypasses the outside of the steering roller to change direction, and finally passes the side of the group of positioning rollers facing away from the identification module and is connected to the second group of winding units;

[0026] The two groups of winding units adjust the position of the adhesion component toward the cleaning module by rotating.

[0027] A further technical improvement of the present invention is that: notches are provided on both sides of the connection box, and the notches are located in the moving path of the grabbing assembly;

[0028] Shielding plates are installed on the upper sides of the two groups of notches inside the connection box through lifting cylinders;

[0029] After the grabbing assembly enters the connection box, two sets of lifting cylinders drive the shielding plates to descend to cover the two sets of notches.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention uses multiple adjustment racks and grabbing components to continuously grab and transfer PCBA boards when there are a large number of PCBA boards, thereby improving the working efficiency of the equipment. When grabbing, the grabbing components cooperate with the adjustment racks to adjust the position and angle of the PCBA boards. When transferring to different equipment, they can be quickly matched, thereby improving the overall processing efficiency of the PCBA boards.

[0032] In addition, after the PCBA board is grabbed, the angle thereof can be easily adjusted without blocking the PCBA board. When position detection and cleanliness detection are subsequently performed, the recognition module has better recognition quality for the PCBA board, thereby improving the power-on detection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0034] Figure 1 It is a front view of the present invention;

[0035] Figure 2 is a side sectional view of the grab assembly of the present invention;

[0036] Figure 3 is a top view of the assembly frame of the present invention;

[0037] Figure 4 It is a side sectional view of the connection box in the present invention;

[0038] Figure 5 It is a schematic diagram of the structure of the cleaning component in the present invention;

[0039] Figure 6 It is a schematic diagram of the connection between the adjustment frame and the grabbing assembly in the present invention.

[0040] In the figure: 1. support frame; 2. rotating frame; 3. adjustment frame; 4. grabbing assembly; 5. connecting box; 6. cleaning assembly; 7. identification module; 8. cleaning module; 9. notch; 10. lifting cylinder; 11. shielding plate; 41. lifting drive frame; 42. first rotating assembly; 43. connecting assembly; 44. stroke cylinder; 45. second rotating assembly; 46. assembly frame; 47. clamping unit; 61. swing assembly; 62. frame; 63. storage mechanism; 64. positioning roller; 65. steering roller; 66. adhesion assembly. DETAILED DESCRIPTION

[0041] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0042] See also Figure 1-6 As shown, the present invention provides a grabbing device for PCBA board power-on detection, comprising a support frame 1, a rotating frame 2 is installed on one side of the support frame 1, four groups of equally spaced adjustment frames 3 are installed on the outer side of the output end of the rotating frame 2, and a grabbing component 4 is installed on one end of each adjustment frame 3 facing away from the rotating frame 2;

[0043] In this embodiment, the transport device and the power-on detection device for transporting the PCBA board are respectively located on both sides of the gripping device, and the transport device transports the PCBA board in a front-upward posture, and after the detection station in the power-on detection device is assembled with the PCBA board, the PCBA board is also in a front-upward position;

[0044] When the transport equipment is transporting the PCBA board, the side of the PCBA board to be inspected is set upward;

[0045] See also Figure 6 As shown, each adjustment frame 3 is provided with a moving part for the X-axis and the Y-axis on the plane, which is used to adjust the position of the PCBA board after the grabbing assembly 4 grabs it, so as to facilitate the subsequent power-on detection;

[0046] A connection box 5 is installed on the upper side of the support frame 1. The connection box 5 is located on the moving path of each grab assembly 4. When each grab assembly 4 rotates based on the corresponding adjustment frame 3 and the support frame 1, it passes through the connection box 5.

[0047] Each grabbing assembly 4 includes an adjusting unit, and a grabbing unit is installed at the output end of the adjusting unit, and the grabbing unit is used to grab and move the PCBA board;

[0048] Among them, the adjustment unit includes height adjustment and angle adjustment. The height adjustment is used to adjust the position height of the grabbing unit. When the grabbing unit moves to the upper side of the conveying equipment for conveying the PCBA board and the upper side of the power-on detection equipment, the height of the grabbing unit is adjusted to facilitate the grabbing and placement of the PCBA board;

[0049] A cleaning module 8 is installed inside the connection box 5, and a cleaning assembly 6 is installed on one side of the cleaning module 8 inside the connection box 5, and an identification module 7 is installed on the top of the connection box 5;

[0050] After the grabbing assembly 4 moves the PCBA board into the connection box 5, the grabbing unit in the grabbing assembly 4 adjusts the front of the PCBA board to face the identification module 7, wherein the front of the PCBA board is a side that is set upward when it is located on the power-on detection device, and at this time, the plane where the PCBA board is located is parallel to the plane when it is located in the power-on detection device;

[0051] The identification module 7 identifies the position of the PCBA board, obtains the real-time position data, and compares it with the preset position data. When there is a difference between the real-time position data and the preset position data, the adjustment data is generated, and the two groups of moving parts in the adjustment frame 3 adjust the position of the grabbing component 4 based on the adjustment data;

[0052] In this embodiment, the identification module 7 uses any mature algorithm and model in the prior art to identify the position of the PCBA board. It establishes a virtual coordinate system and sets preset position data in the virtual coordinate system. After subsequently identifying the real-time position data of the PCBA board, it makes adjustments based on the data difference between the real-time position data of the PCBA board and the preset position data. Because the horizontal position of the PCBA board at the identification position is parallel to its horizontal position in the power-on detection device, when adjusting the position in the identification module 7, the adjustment direction is parallel to the moving direction of the transport device and perpendicular to the moving direction of the transport device. After the corresponding adjustment frame 3 is rotated to one side of the power-on detection device, the preset moving distance of the corresponding adjustment frame 3 is corrected based on the difference value of the corresponding direction in the data difference. After the correction, the PCBA board can be placed on the power-on detection device through the grabbing component 4.

[0053] At the same time, the recognition module 7 recognizes impurities on the front side of the PCBA board. When impurities exist on the PCBA board, the cleaning module 8 cleans the PCBA board.

[0054] See also Figure 2-3 As shown, the adjustment unit includes a lifting drive frame 41, the lifting drive frame 41 is used to be connected to the output end of the adjustment frame 3, and the output end of the lifting drive frame 41 is installed with a first rotating component 42;

[0055] The lifting drive frame 41 is used to adjust the height of the grabbing unit in the adjustment unit;

[0056] The first rotating assembly 42 is used for adjusting the angle of the grabbing unit in the adjusting unit, and the first rotating assembly 42 is based on the rotation of the output end of the rotating frame 2 .

[0057] The grabbing unit includes a connecting assembly 43, and stroke cylinders 44 are installed on both sides of the connecting assembly 43, and second rotating assemblies 45 are installed on the output ends of the two sets of stroke cylinders 44;

[0058] The output ends of the two sets of second rotating components 45 are coaxially arranged, and an assembly frame 46 is installed between them;

[0059] A plurality of clamping units 47 are mounted on the side of the assembly frame 46;

[0060] After each clamping unit 47 is started synchronously, the PCBA board is grabbed;

[0061] After the corresponding grabbing assembly 4 enters the connection box 5, the grabbing unit is first in a state with the PCBA board facing downward, and then the stroke cylinder 44 adjusts the height of the assembly frame 46 to expand the distance between it and the connection assembly 43 to make room for the PCBA board to rotate. Finally, each second rotating assembly 45 is started to drive the PCBA board to rotate 180°, turning the PCBA board to a state where the front is facing the identification module 7.

[0062] See also Figure 4-5 As shown, notches 9 are provided on both sides of the connection box 5, and the notches 9 are located in the moving path of the grabbing assembly 4;

[0063] Inside the connection box 5, shielding plates 11 are installed on the upper sides of the two groups of notches 9 through lifting cylinders 10;

[0064] After the grabbing assembly 4 enters the connection box 5, the two sets of lifting cylinders 10 drive the shielding plates 11 to descend, covering the two sets of notches 9;

[0065] In addition, a fill light module is installed on one side of the two sets of shielding plates 11 facing the inside of the connection box 5, which is used to provide light when the recognition module 7 recognizes the PCBA board, thereby improving the recognition quality of the recognition module 7;

[0066] When performing impurity identification, the fill light module in the shielding plate 11 performs illumination with various intensities and colors. After the recognition module 7 collects images of the PCBA board, it sequentially performs image processing, enhancement-image segmentation, feature extraction-impurity identification and classification-result output steps to identify whether there are impurities on the PCBA board that affect power-on detection. Specifically, a convolutional neural network algorithm can be used for identification;

[0067] The cleaning assembly 6 includes a swing assembly 61, a frame 62 and an adhesion assembly 66. The swing assembly 61 is connected to the connection box 5, and the output end of the swing assembly 61 is connected to one side of the frame 62. The other side of the frame 62 is rotatably connected to the connection box 5. The position where the frame 62 is rotatably connected to the connection box 5 is axially arranged with the output end of the swing assembly 61.

[0068] After the swing assembly 61 is started, the frame 62 is swung.

[0069] A storage mechanism 63 is installed at the top end of the frame 62, a steering roller 65 is installed at the bottom end of the swing assembly 61, and two sets of adjacent positioning rollers 64 are installed between the storage mechanism 63 and the steering roller 65 in the swing assembly 61;

[0070] The storage mechanism 63 includes two groups of winding units. One end of the adhesive component 66 is connected to one group of winding units, and then the adhesive component 66 passes between the two groups of positioning rollers 64. The two groups of positioning rollers 64 limit the adhesive component 66. Then the adhesive component 66 bypasses the outer side of the steering roller 65 to change direction. Finally, after passing the side of the group of positioning rollers 64 facing away from the identification module 7, it is connected to the second group of winding units.

[0071] The two groups of winding units adjust the adhesion assembly 66 toward the cleaning module 8 by rotating;

[0072] In this embodiment, the adhesive component 66 is provided with a single-sided adhesive surface, and its adhesive surface is arranged toward the cleaning module 8;

[0073] The portion of the frame 62 where the two groups of positioning rollers 64 are located is arched toward the side facing away from the cleaning module 8. After the cleaning component 6 swings to the side corresponding to the grabbing component 4, the grabbing component 4 is located inside the arched area of ​​the frame 62, and the adhesive component 66 covers one end of the corresponding grabbing component 4 to increase the area covered by the adhesive component 66 when the cleaning module 8 cleans the PCBA board grabbed by the grabbing component 4.

[0074] When the present invention is used:

[0075] A set of adjustment frames 3 rotates with the rotating frame 2. After it rotates to one side of the transport equipment, two sets of moving parts in the adjustment frame 3 are started to move the corresponding grabbing assembly 4 to the top of the transport equipment. Then the grabbing assembly 4 moves a set of PCBA boards to the lower side of the grabbing assembly 4. The first rotating assembly 42 in the grabbing assembly 4 adjusts the connecting assembly 43 to make the assembly frame 46 parallel to the PCBA board. Then the lifting drive frame 41 is started to drive the connecting assembly 43 to descend. Then each clamping unit 47 is started to clamp the PCBA board.

[0076] Then the rotating frame 2 is started, and the grabbing assembly 4 passes through the notches 9 on both sides of the connecting box 5 and rotates into the connecting box 5;

[0077] When the grabbing assembly 4 just enters the connection box 5, the first rotating assembly 42 adjusts the connection assembly 43 to face away from the identification module 7, and then the stroke cylinder 44 and the second rotating assembly 45 are started to flip the assembly frame 46 and the PCBA board so that the front of the PCBA board faces the identification module 7. Since the assembly frame 46 is frame-shaped, the PCBA board is less blocked;

[0078] The identification module 7 identifies whether the position of the PCBA board is offset and whether there are impurities;

[0079] During position identification, if there is position offset, the corresponding grabbing component 4 is adjusted by adjusting the frame 3. If there are impurities, after the position adjustment, the swinging component 61 swings the frame 62 to one end of the grabbing component 4. Then the cleaning module 8 is started to blow air to the PCBA board grabbed by the grabbing component 4 to clean it. The air blowing direction is toward the cleaning component 6. The cleaning component 6 collects the cleaned impurities through the adhesion component 66. During the collection, the two sets of winding units in the storage mechanism 63 rotate to adjust the position of the adhesion component 66.

[0080] During cleaning, the cleaning component 6 and the baffle plate 11 in the connection box 5 are reset, the assembly frame 46 is reset, and the front of the PCBA board is rotated back to the direction facing the connection component 43. The rotating frame 2 drives the corresponding grabbing component 4 to rotate again through the adjusting frame 3 until the grabbing component 4 is rotated to one side of the power-on detection device, and the first rotating component 42 rotates the connection component 43 to adjust the PCBA board to a state parallel to the power-on detection device. Then the adjusting frame 3 is started to move the grabbing component 4 to the upper side of the detection station in the power-on detection device, and then the stroke cylinder 44 is started to lower the assembly frame 46 and each clamping unit 47, and then each clamping unit 47 is unfolded to place the PCBA board in the detection station. Then the adjusting frame 3 and the grabbing component 4 are reset, and based on the rotating frame 2 rotating back to one side of the transport equipment, a new group of PCBA boards are grabbed.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A grabbing device for PCBA board power-on detection, characterized in that: include: A support frame (1) having a rotating frame (2) mounted on one side thereof; A gripping assembly (4) comprising an adjustment unit and a gripping unit, and a plurality of the gripping assemblies (4) are equidistantly mounted on one side of the rotating frame (2) via a set of adjustment frames (3); A connection box (5) is installed on the upper side of the support frame (1) and is located on the moving path of each grabbing assembly (4), and a cleaning module (8) and a cleaning assembly (6) are installed on both sides of the connection box (5); An identification module (7) is installed on the top of the connection box (5); After the grabbing assembly (4) moves the PCBA board into the connection box (5), the grabbing unit in the grabbing assembly (4) adjusts the front side of the PCBA board to face the identification module (7); The identification module (7) identifies the position and impurities of the PCBA board, obtains real-time position data and determines whether there are impurities on the PCBA board; The adjustment frame (3) adjusts the position of the grabbing component (4) based on adjustment data obtained after comparing the real-time position data with the preset position data; The cleaning module (8) cleans the PCBA board after determining that there are impurities on the PCBA board.

2. A grabbing device for PCBA board power-on detection according to claim 1, characterized in that: The adjustment unit comprises a lifting drive frame (41), and a first rotating assembly (42) is installed at the output end of the lifting drive frame (41).

3. A grabbing device for PCBA board power-on detection according to claim 2, characterized in that: The grabbing unit comprises a connecting assembly (43), both sides of the connecting assembly (43) are equipped with stroke cylinders (44), and the output ends of the two groups of stroke cylinders (44) are equipped with second rotating assemblies (45); The output ends of the two sets of second rotating components (45) are coaxially arranged, and an assembly frame (46) is installed between them; A plurality of clamping units (47) are installed on the side of the assembly frame (46).

4. A grabbing device for PCBA board power-on detection according to claim 1, characterized in that: The cleaning assembly (6) comprises a swing assembly (61), a frame (62) and an adhesion assembly (66); the swing assembly (61) is connected to the connection box (5), and the output end of the swing assembly (61) is connected to one side of the frame (62); the other side of the frame (62) is rotationally connected to the connection box (5), and the position where the frame (62) is rotationally connected to the connection box (5) is axially arranged with the output end of the swing assembly (61).

5. A grabbing device for PCBA on-board power-on detection according to claim 4, characterized in that: A storage mechanism (63) is installed at the top end of the frame (62), a steering roller (65) is installed at the bottom end of the swing assembly (61), and two groups of adjacent positioning rollers (64) are installed between the storage mechanism (63) and the steering roller (65) inside the swing assembly (61).

6. A grabbing device for PCBA board power-on detection according to claim 5, characterized in that: The storage mechanism (63) comprises two groups of winding units; One end of the adhesive component (66) is connected to a group of winding units, and then the adhesive component (66) passes between two groups of positioning rollers (64), then bypasses the outside of the steering roller (65) to change direction, and finally passes from the side of a group of positioning rollers (64) facing away from the identification module (7) and is connected to the second group of winding units.

7. A grabbing device for PCBA board power-on detection according to claim 1, characterized in that: The connection box (5) is provided with notches (9) on both sides, and the notches (9) are located in the moving path of the grabbing component (4); Shielding plates (11) are installed on the upper sides of the two groups of notches (9) inside the connection box (5) via lifting cylinders (10).

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