Circuit board AOI scanning device

Abstract

The utility model provides a circuit board AOI scanning device, which relates to the technical field of circuit board AOI scanning, and comprises a frame, a moving part, a mounting seat, a lead screw, a motor, a guide plate, an angle plate, a clamping plate, a rotating shaft, a gear, a rack, a first clamping groove, an accommodating groove and a scanning part, a vertical plate is arranged on the lower surface of the sliding rail, second clamping grooves are formed in the outer surfaces of the sides, close to each other, of the other end of the corner plate and the lower end of the vertical plate, first magnets are arranged in the first clamping groove of the guide plate and the second clamping groove of the corner plate, and second magnets are arranged in the first clamping groove of the clamping plate and the second clamping groove of the vertical plate. According to the device, after one side of the circuit board is scanned, the circuit board can be overturned in the device, the circuit board does not need to be installed again, time is saved, the working efficiency is greatly improved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board AOI scanning, in particular to a circuit board AOI scanning device. Background Art

[0002] AOI, short for Automatic Optical Inspection, is a measurement method used for new electronic components, mid-to-high-end electromechanical components, rigid-flex boards, and HDI high-density laminates. It is a device based on optical principles to detect common defects encountered in welding production. It is an emerging new testing technology. During automatic inspection, the machine automatically scans the PCB through a camera, collects images, compares the tested solder joints with qualified parameters in the database, and detects defects on the PCB through image processing. Since double-sided PCB circuit boards are more commonly used, during inspection, the staff first places one side of the double-sided PCB circuit board on the machine, and then manually switches to the other side after completing the inspection of that side. This results in low work efficiency and is difficult to meet production needs. Utility Model Content

[0003] The purpose of the present invention is to provide a circuit board AOI scanning device, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: the circuit board AOI scanning device includes a frame, a moving part is symmetrically arranged on the frame, the moving part includes a mounting seat arranged on the side of the frame, a screw is arranged on the mounting seat, and also includes a motor for driving the screw to rotate, and also includes a guide plate, the guide plate is slidably connected to the frame, the upper surface of the guide plate is provided with an angle plate, one end of the angle plate is threadedly connected to the screw, a splint is provided on one side of the guide plate, a rotating shaft is fixedly provided on one side of the splint, a gear is provided at one end of the rotating shaft, the guide plate is located between the gear and the splint, and a gear is provided on the frame that is in contact with the gear. The cooperating rack is connected with the rotating shaft in rotation with the guide plate, and the outer surface of the side where the guide plate and the clamping plate contact each other is symmetrically provided with a first card slot, and a flexible accommodating slot is provided on one side of the clamping plate. It also includes a scanning part, and the two sides of the scanning part are symmetrically provided with slide rails connected to the frame for sliding, and a vertical plate is provided on the lower surface of the slide rail, and the other end of the angle plate and the outer surface of the side where the lower end of the vertical plate is close to each other are provided with a second card slot, and the first card slot of the guide plate and the second card slot of the angle plate are both provided with a first magnet, and the first card slot of the clamping plate and the second card slot of the vertical plate are both provided with a second magnet, and the first magnet and the second magnet attract each other when they are close to each other.

[0005] Preferably, it further comprises a shell for the mask frame, and a light group is provided on the lower surface of the scanning part.

[0006] Preferably, a slope is provided at one end of the rack away from the motor.

[0007] Preferably, the bottom of the receiving tank is sealed.

[0008] Preferably, a notch is provided on the upper side of the accommodating groove.

[0009] The beneficial effects of the utility model are:

[0010] After scanning one side of the circuit board, the device can flip the circuit board inside the device, eliminating the need to reinstall the circuit board, saving time, greatly improving work efficiency, and achieving good results. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the present utility model.

[0012] Figure 2 It is a schematic structural diagram of the interior of the shell of a specific embodiment of the present utility model.

[0013] Figure 3 yes Figure 2 The main view in state.

[0014] Figure 4 yes Figure 2 A three-dimensional image from another angle in the state.

[0015] Figure 5 It is a structural schematic diagram of a guide plate and a clamping plate in a specific embodiment of the present utility model.

[0016] In the figure: 1. frame; 2. mounting base; 3. lead screw; 4. motor; 5. guide plate; 6. angle plate; 7. clamping plate; 8. rotating shaft; 9. gear; 10. rack; 11. receiving groove; 12. scanning part; 13. slide rail; 14. vertical plate; 15. first magnet; 16. second magnet; 17. housing; 18. lamp assembly; 19. circuit board. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-5As shown, a circuit board AOI scanning device includes a frame 1, a moving part is symmetrically arranged on the frame 1, the moving part includes a mounting seat 2 arranged on the side of the frame 1, a lead screw 3 is arranged on the mounting seat 2, and also includes a motor 4 for driving the lead screw 3 to rotate, and also includes a guide plate 5, the guide plate 5 is slidably connected to the frame 1, an upper surface of the guide plate 5 is provided with an angle plate 6, one end of the angle plate 6 is threadedly connected to the lead screw 3, a clamping plate 7 is provided on one side of the guide plate 5, a rotating shaft 8 is fixedly provided on one side of the clamping plate 7, a gear 9 is provided at one end of the rotating shaft 8, the guide plate 5 is located between the gear 9 and the clamping plate 7, a rack 10 is provided on the frame 1 that cooperates with the gear 9, and the rotating shaft 8 rotates with the guide plate 5 Dynamic connection, the outer surface of the side where the guide plate 5 and the clamping plate 7 contact each other is symmetrically provided with a first card groove, and a flexible accommodating groove 11 is provided on one side of the clamping plate 7. It also includes a scanning part 12, and the two sides of the scanning part 12 are symmetrically provided with slide rails 13 slidably connected to the frame 1. The lower surface of the slide rail 13 is provided with a vertical plate 14, and the other end of the angle plate 6 and the lower end of the vertical plate 14 are close to each other. The outer surface of the side is provided with a second card groove, and the first card groove of the guide plate 5 and the second card groove of the angle plate 6 are provided with a first magnet 15, and the first card groove of the clamping plate 7 and the second card groove of the vertical plate 14 are provided with a second magnet 16. The first magnet 15 and the second magnet 16 attract each other when they are close to each other.

[0019] The material of the receiving groove 11 is silicone and is provided on one side of the splint 7. When placing the circuit board 19, the two ends of the circuit board 19 are respectively inserted into the receiving groove 11, and the bottom of the receiving groove 11 is sealed. When one end of the circuit board 19 abuts against the receiving groove 11, it means that the circuit board 19 has reached the installation position. When the circuit board 19 is located between the two receiving grooves 11, the circuit board 19 has an squeezing effect on the receiving groove 11. Through the friction between the receiving groove 11 and the circuit board 19, the circuit board 19 can be stably placed between the two receiving grooves 11. A notch is provided on the upper side of the receiving groove 11 to facilitate the placement of the circuit board 19 into the receiving groove 11.

[0020] When scanning the upper surface of the circuit board 19 clamped between the two receiving grooves 11, it is necessary to move the circuit board 19 to the bottom of the scanning part 12. Specifically, the two motors 4 are controlled to start at the same time. The two motors 4 drive the screw 3 to rotate at the same time. The screw 3 is connected to the angle plate 6 through a thread, driving the guide plate 5 to move linearly along the screw 3. The frame 1 is assembled from profiles and has a track for moving the guide plate 5, which can ensure that the guide plate 5 can only move linearly. When the guide plate 5 moves along the screw 3, the circuit board 19 is driven to move through the clamping plate 7 and the receiving groove 11. Since the first magnet 15 in the guide plate 5 and the second magnet 16 on the clamping plate 7 are magnetically attracted to each other , so the receiving slot 11 will not move, and the upper surface of the circuit board 19 continues to remain upward. When the circuit board 19 moves to the bottom of the scanning unit 12, the motor 4 stops working. At this time, the upper surface of the circuit board 19 is scanned by the scanning unit 12, and the scanned information is compared and processed by the corresponding information processing equipment. Since the scanning unit 12 and the information processing equipment are existing technologies, they are not described here. After the upper surface of the circuit board 19 is scanned, its lower surface needs to be scanned. Specifically, the motor 4 is continued to be controlled to start, driving the guide plate 5 to continue to move along the previous moving direction. Before the guide plate 5 starts to move, the first magnet 1 on the angle plate 6 5 and the second magnet 16 on the vertical plate 14 are in contact and magnetically attracted to each other, then the guide plate 5 starts to move, and the angle plate 6 pushes the scanning part 12 to move. When the gear 9 contacts the rack 10, the gear 9 will rotate, and the gear 9 drives the clamping plate 7 to rotate through the rotating shaft 8, and the clamping plate 7 drives the circuit board 19 to rotate through the two receiving slots 11. When the circuit board 19 flips 180°, the motor 4 stops working. Since the clamping plate 7 and the guide plate 5 have also rotated 180° relative to each other, the first magnet 15 on the guide plate 5 and the second magnet 16 on the clamping plate 7 continue to maintain contact and magnetic attraction, thereby ensuring the stability of the circuit board 19. At this time, under the action of the angle plate 6, the scanning The scanning part 12 is pushed to the top of the circuit board 19. At this time, the other side of the circuit board 19 can be scanned by the scanning part 12, thereby realizing the double-sided scanning of the circuit board 19. After the scanning is completed, the two motors 4 are controlled to reverse, driving the guide plate 5 to reset, and under the magnetic attraction of the first magnet 15 on the angle plate 6 and the second magnet 16 on the vertical plate 14, the scanning part 12 is driven to reset. When the scanning part 12 is in contact with the frame 1, as the angle plate 6 continues to move, the first magnet 15 on the angle plate 6 and the second magnet 16 on the vertical plate 14 are separated. When the guide plate 5 is completely reset, the motor 4 stops working, the circuit board 19 is removed, and a new circuit board 19 is replaced.

[0021] Before scanning the other side of the circuit board 19, it is necessary to control the rotation of the circuit board 19 through the cooperation of the gear 9 and the rack 10. Since one end of the receiving slot 11 is closed, during the rotation of the receiving slot 11, the closed end of the receiving slot 11 is located at the bottom and the open end is located at the top. Therefore, the circuit board 19 located in the receiving slot 11 will not fall out of the receiving slot 11.

[0022] Furthermore, it also includes a shell 17 for the mask frame 1, and a light group 18 is provided on the lower surface of the scanning part 12. The setting of the shell 17 can increase the scanning stability inside the device and reduce external interference. The light group 18 provides supplementary light to the circuit board 19 in the shell.

[0023] Furthermore, a slope is provided at one end of the rack 10 away from the motor 4 to facilitate contact and cooperation between the gear 9 and the rack 10 .

[0024] After scanning one side of the circuit board 19, the device can flip the circuit board 19 inside the device, eliminating the need to reinstall the circuit board 19, saving time, significantly improving work efficiency, and providing good results.

[0025] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A circuit board AOI scanning device, characterized in that: The invention comprises a frame (1), wherein a moving part is symmetrically arranged on the frame (1), wherein the moving part comprises a mounting seat (2) arranged on the side of the frame (1), a lead screw (3) is arranged on the mounting seat (2), a motor (4) for driving the lead screw (3) to rotate, and a guide plate (5), wherein the guide plate (5) is slidably connected to the frame (1), an angle plate (6) is arranged on the upper surface of the guide plate (5), one end of the angle plate (6) is threadedly connected to the lead screw (3), a clamping plate (7) is arranged on one side of the guide plate (5), a rotating shaft (8) is fixedly arranged on one side of the clamping plate (7), a gear (9) is arranged on one end of the rotating shaft (8), the guide plate (5) is located between the gear (9) and the clamping plate (7), a rack (10) matched with the gear (9) is arranged on the frame (1), and the rotating shaft (8) is connected to the guide plate (5). The plate (5) is rotatably connected, and a first card slot is symmetrically provided on the outer surface of the side where the guide plate (5) and the clamping plate (7) contact each other, and a flexible receiving slot (11) is provided on one side of the clamping plate (7), and also includes a scanning part (12), and slide rails (13) symmetrically provided on both sides of the scanning part (12) are slidably connected to the frame (1), and a vertical plate (14) is provided on the lower surface of the slide rail (13), and a second card slot is provided on the outer surface of the side where the other end of the angle plate (6) and the lower end of the vertical plate (14) are close to each other, and a first magnet (15) is provided in the first card slot of the guide plate (5) and the second card slot of the angle plate (6), and a second magnet (16) is provided in the first card slot of the clamping plate (7) and the second card slot of the vertical plate (14), and the first magnet (15) and the second magnet (16) attract each other when they are close to each other.

2. The circuit board AOI scanning device according to claim 1, wherein: It also includes a shell (17) for the mask frame (1), and a light group (18) is provided on the lower surface of the scanning part (12).

3. The circuit board AOI scanning device according to claim 1, wherein: An end of the rack (10) away from the motor (4) is provided with a slope.

4. The circuit board AOI scanning device according to claim 1, wherein: The bottom of the containing tank (11) is sealed.

5. The circuit board AOI scanning device according to claim 1, wherein: A notch is provided on the upper side of the accommodating groove (11).

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