PCB board detection fixing device

Abstract

The utility model discloses a kind of PCB detection fixing device, two electromagnets can respectively magnetically attract adsorption PCB board two ferromagnetic material plates of opposite two sides after working, camera is installed in the top between two vertical moving assemblies;X-ray detection equipment is installed in the other two sides between two vertical moving assemblies;By horizontal moving assembly, vertical moving assembly can adjust the horizontal and vertical position of electromagnet, then magnetically attract PCB board after approaching PCB board, and shift to working position, by rotating motor can be respectively towards top camera with the front and back of PCB board to carry out optical detection, by rotating motor can adjust the posture of PCB board as vertical, so that X-ray detection equipment carries out X-ray detection;By using electromagnet adsorption ferromagnetic material plate on PCB board, the rapid fixing and unloading of PCB board are realized, and the working efficiency of PCB detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a PCB board testing and fixing device. Background Technology

[0002] PCB board inspection and fixing devices are key tooling in electronic manufacturing, primarily used for the precise fixing and support of PCB boards. Existing PCB board inspection technologies mainly include Automated Optical Inspection (AOI), which uses a high-resolution camera to capture images of the PCB from different angles (typically including the top and multiple side angles). Image processing algorithms then compare these images with "gold standard" (standard board) or Gerber data to identify defects such as missing components, misaligned parts, misalignment, polarity reversal, bridging, and cold solder joints. It is applied from bare board circuit inspection to post-soldering inspection of PCBAs. Automated X-ray Inspection (AXI) utilizes X-rays to penetrate the PCB. Different materials (such as metal solder, copper, and plastic components) absorb X-rays to varying degrees, creating grayscale images. This clearly shows hidden solder joints, such as the soldering quality of BGA (Ball Grid Array) and CSP (Chip Scale Package). It is applied for inspecting BGA solder joint voids, bridging, desoldering, internal chip defects, and the internal layer structure of the PCB. Existing technologies lack a fixture for inspection that can coordinately fix the PCB and complete automatic optical and X-ray inspections at a single station.

[0003] Therefore, it is necessary to develop a PCB board inspection and fixing device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to design a PCB board inspection and fixing device to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions: PCB board inspection and fixing device, including: Two ferromagnetic material plates; the two ferromagnetic material plates are respectively mounted on two opposite side walls of the PCB board; Two horizontal moving components; the two horizontal moving components are mounted in the same plane and their moving directions are on the same straight line; Two vertical moving components; both vertical moving components are set vertically and are parallel to each other. The lower ends of the two vertical moving components are respectively fixedly installed on the moving parts of the two horizontal moving components; a camera is installed at the top between the two vertical moving components; an X-ray detection device is installed on the other two sides between the two vertical moving components. Two rotary motors; the bottoms of the two rotary motors are respectively fixedly mounted on the moving parts of two vertical moving components; Two electromagnets; the fixed parts of the two electromagnets are connected to the shafts of two rotating motors, respectively. The active parts of the two electromagnets are magnetically connected to two ferromagnetic plates, respectively.

[0006] The beneficial effects of this utility model are as follows: In this application, two horizontal moving components can be used to adjust the horizontal position of two vertical moving components, and two vertical moving components can be used to adjust the vertical position of two electromagnets and two rotary motors. After the two electromagnets are activated, they can magnetically attract two ferromagnetic material plates on opposite sides of the PCB board. The camera is installed at the top between the two vertical moving components; the X-ray inspection equipment is installed on the other two sides between the two vertical moving components. The horizontal and vertical moving components can adjust the horizontal and vertical positions of the electromagnets, and then, after approaching the PCB board, they magnetically lift the PCB board and transfer it to the working position. The rotary motors can be used to face the front and back of the PCB board toward the top camera for optical inspection, and the rotation of the rotary motors can be used to adjust the posture of the PCB board to vertical so that the X-ray inspection equipment can perform X-ray inspection. By using electromagnets to attract the ferromagnetic material plates on the PCB board, the PCB board can be quickly fixed and removed, and the work efficiency of PCB board inspection is improved. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the PCB board structure in this utility model; Figure 3 This is a schematic diagram of the vertical moving component and the horizontal moving component in this utility model; Figure 4 This is a schematic diagram of the PCB board testing process in this utility model.

[0008] Labels in the diagram: 1. PCB board; 2. Ferromagnetic material board; 3. Screw; 4. Electromagnet; 5. Rotary motor; 6. Vertical moving assembly; 7. Horizontal moving assembly; 8. First mounting plate; 9. First motor; 10. First rotating seat; 11. First screw; 12. First slider; 13. Guide rod; 14. Second mounting plate; 15. Second motor; 16. Second rotating seat; 17. Third rotating seat; 18. Second screw; 19. Second slider; 20. Slide; 21. Camera; 22. X-ray inspection equipment. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0010] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0011] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0012] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0013] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0014] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0016] like Figure 1 and 2As shown in Figure 4, the PCB board inspection and fixing device includes: Two ferromagnetic material plates 2; the two ferromagnetic material plates 2 are respectively mounted on two opposite side walls of PCB board 1; Two horizontal moving components 7; the two horizontal moving components 7 are installed in the same plane and their moving directions are on the same straight line; Two vertical moving components 6; both vertical moving components 6 are vertically arranged and parallel to each other, and the lower ends of the two vertical moving components 6 are respectively fixedly installed on the moving parts of the two horizontal moving components 7; a camera 21 is installed on the top between the two vertical moving components 6; an X-ray detection device 22 is installed on the other two sides between the two vertical moving components 6. Two rotary motors 5; the bottoms of the two rotary motors 5 are respectively fixedly mounted on the moving parts of the two vertical moving components 6; Two electromagnets 4; the fixed parts of the two electromagnets 4 are respectively connected to the rotating shafts of two rotary motors 5. The active parts of the two electromagnets 4 are respectively magnetically connected to two ferromagnetic material plates 2. Figure 4 The X-ray inspection device 22 contains a vertical moving component 6 and a horizontal moving component 7. The horizontal axis of the X-ray inspection device 22 is perpendicular to the line connecting the centers of the two vertical moving components 6.

[0017] like Figure 2 As shown, the ferromagnetic material plate 2 is connected to the PCB board 1 by screws 3.

[0018] like Figure 2 As shown, the ferromagnetic material plate 2 is formed into an L-shaped plate structure. The ferromagnetic material plate 2 includes a horizontal plate and a vertical plate. Two countersunk holes are opened on both the horizontal plate and the vertical plate. Correspondingly, two first screw holes are opened horizontally on the side wall of the PCB board 1, and two second screw holes are opened on the upper part of the PCB board 1 near the side wall. Two screws 3 pass through the two countersunk holes on the horizontal plate and are screwed into the two second screw holes. The other two screws 3 pass through the two countersunk holes on the vertical plate and are screwed into the two first screw holes.

[0019] like Figure 3As shown, the vertical moving assembly 6 includes a first mounting plate 8, a first motor 9, a first rotating base 10, a first screw 11, a first slider 12, and a guide rod 13. The first mounting plate 8 is vertically arranged. The first motor 9 and the first rotating base 10 are respectively mounted on the upper and lower ends of one side of the first mounting plate 8. The shaft of the first motor 9 is connected to the first end of the first screw 11, and the second end of the first screw 11 is rotatably mounted inside the first rotating base 10. The first slider 12 has a third screw hole and a first through hole installed parallel to each other. The first screw 11 is threaded into the third screw hole. After the guide rod 13 passes through the first through hole, its two ends are respectively connected to the housing of the first motor 9 and the first rotating base 10. It should be noted that the first motor 9 of the vertical moving assembly 6 works synchronously to keep the PCB board 1 horizontal at all times.

[0020] like Figure 3 As shown, the first screw 11 is parallel to the guide rod 13.

[0021] like Figure 3 As shown, the bottom of the first slider 12 is slidably placed on the side wall of the first mounting plate 8.

[0022] like Figure 3 As shown, the horizontal moving assembly 7 includes a second mounting plate 14, a second motor 15, a second rotating seat 16, a third rotating seat 17, a second screw 18, and a second slider 19. The second mounting plate 14 is horizontally fixed in position. The second rotating seat 16, the third rotating seat 17, and the second motor 15 are all mounted on the second mounting plate 14. The second rotating seat 16 and the second motor 15 are located at the first end of the second mounting plate 14, and the third rotating seat 17 is located at the second end of the second mounting plate 14. The second rotating seat 16 is located between the second motor 15 and the third rotating seat 17. The two ends of the second screw 18 are rotatably mounted in the second rotating seat 16 and the third rotating seat 17, respectively. The shaft of the second motor 15 is connected to one end of the second screw 18. The lower end of the second slider 19 forms a groove 20. The second slider 19 slides with the second mounting plate 14 through the groove 20. The second slider 19 has a fourth screw hole, and the second screw 18 is threaded into the fourth screw hole. The upper end of the second slider 19 is connected to the first motor 9. It is important to note that the second motors 15 of the two horizontal moving components 7 should work synchronously.

[0023] like Figure 3 As shown, the second screw 18 is perpendicular to the first screw 11.

[0024] Working principle: During operation, the horizontal moving assembly 7 works as follows: the rotation of the shaft of the second motor 15 drives the second screw 18 to rotate. Because the second screw 18 is threadedly engaged with the second slider 19, and the second slider 19 is circumferentially anti-rotating with the second mounting plate 14, the second slider 19 slides along the second mounting plate 14. The vertical moving assembly 6 works as follows: the rotation of the shaft of the first motor 9 drives the first screw 11 to rotate. Because the first screw 11 is threadedly engaged with the first slider 12, and the first slider 12 is circumferentially anti-rotating because it is engaged with the parallel first screw 11 and guide rod 13, the first slider 12 slides along the first mounting plate 8. Since the first motor 9 is placed on the second slider 19, the movement of the second slider 19 drives the entire vertical moving assembly 6. For horizontal movement, since the rotary motor 5 is placed on the first slider 12, the movement of the first slider 12 drives the electromagnet 4 and the rotary motor 5 to move vertically. When it is necessary to clamp and fix the PCB board 1, the two vertical moving components 6 first open and then move down to the PCB board 1. Then, the vertical moving components 6 move downwards, driving the electromagnet 4 and the rotary motor 5 to move vertically to both sides of the PCB board 1. Then, the two horizontal moving components 7 move the two vertical moving components 6 closer together until the two energized electromagnets 4 attract the ferromagnetic material plates 2 at both ends of the PCB board 1, completing the fixation. Then, according to the shooting requirements of the camera 21 and the X-ray inspection equipment 22, the vertical position of the PCB board 1 is adjusted by the vertical moving components 6, and the angle of the PCB board 1 is adjusted by the rotary motor 5. After the inspection is completed, the vertical moving components 6 move down, the two horizontal moving components 7 move the vertical moving components 6 to both sides, and the electromagnets 4 are de-energized, thus completing the release of the PCB board 1.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A PCB board inspection and fixing device, characterized in that, include: Two ferromagnetic material plates; Two ferromagnetic material plates are respectively mounted on two opposite side walls of the PCB board; Two horizontal moving components; the two horizontal moving components are mounted in the same plane and their moving directions are on the same straight line; Two vertical moving components; both vertical moving components are set vertically and are parallel to each other. The lower ends of the two vertical moving components are respectively fixedly installed on the moving parts of the two horizontal moving components; a camera is installed at the top between the two vertical moving components; an X-ray detection device is installed on the other two sides between the two vertical moving components. Two rotary motors; the bottoms of the two rotary motors are respectively fixedly mounted on the moving parts of two vertical moving components; Two electromagnets; the fixed parts of the two electromagnets are connected to the shafts of two rotating motors, and the active parts of the two electromagnets are magnetically connected to two ferromagnetic material plates.

2. The PCB board inspection and fixing device according to claim 1, characterized in that, The ferromagnetic material board is connected to the PCB board by screws.

3. The PCB board inspection and fixing device according to claim 2, characterized in that, The ferromagnetic material board is formed into an L-shaped plate structure, including a horizontal plate and a vertical plate. Two countersunk holes are opened on both the horizontal plate and the vertical plate. Correspondingly, two first screw holes are opened horizontally on the side wall of the PCB board, and two second screw holes are opened on the upper part of the PCB board near the side wall. Two screws pass through the two countersunk holes on the horizontal plate and are screwed into the two second screw holes. The other two screws pass through the two countersunk holes on the vertical plate and are screwed into the two first screw holes.

4. The PCB board inspection and fixing device according to claim 1, characterized in that, The vertical moving assembly includes a first mounting plate, a first motor, a first rotating seat, a first screw, a first slider, and a guide rod. The first mounting plate is vertically arranged. The first motor and the first rotating seat are respectively mounted on the upper and lower ends of one side of the first mounting plate. The rotating shaft of the first motor is connected to the first end of the first screw. The second end of the first screw is rotatably mounted in the first rotating seat. The first slider has a third screw hole and a first through hole installed parallel to each other. The first screw is threaded into the third screw hole. After the guide rod passes through the first through hole, both ends of the guide rod are connected to the housing of the first motor and the first rotating seat, respectively.

5. The PCB board inspection and fixing device according to claim 4, characterized in that, The first screw is parallel to the guide rod.

6. The PCB board inspection and fixing device according to claim 4, characterized in that, The bottom of the first slider is slidably placed on the side wall of the first mounting plate.

7. The PCB board inspection and fixing device according to claim 4, characterized in that, The horizontal moving assembly includes a second mounting plate, a second motor, a second rotating seat, a third rotating seat, a second screw, and a second slider. The second mounting plate is horizontally fixed in position. The second rotating seat, the third rotating seat, and the second motor are all mounted on the second mounting plate. The second rotating seat and the second motor are located at the first end of the second mounting plate, and the third rotating seat is located at the second end of the second mounting plate. The second rotating seat is positioned between the second motor and the third rotating seat. The two ends of the second screw are rotatably mounted in the second rotating seat and the third rotating seat, respectively. The shaft of the second motor is connected to one end of the second screw. The lower end of the second slider has a sliding groove, through which the second slider slides in cooperation with the second mounting plate. The second slider has a fourth threaded hole, and the second screw is threaded into the fourth threaded hole. The upper end of the second slider is connected to the first motor.

8. The PCB board inspection and fixing device according to claim 7, characterized in that, The second screw is perpendicular to the first screw.

Images