Inspection device for printed circuit board

Abstract

The utility model discloses a printed circuit board inspection device, and particularly relates to the technical field of circuit board inspection, the printed circuit board inspection device comprises a base used for supporting, the base is provided with a positioning inspection assembly, the positioning inspection assembly comprises two transverse plates arranged at the top of the base, and the top of each transverse plate is provided with an inspection bench installed on the base and used for lifting. According to the utility model, the positioning inspection assembly is arranged, and the output end of the electric push rod is recovered to drive the pressing arm to move downwards, so that the rubber block can be pressed on the circuit board to limit the circuit board, the stability of the circuit board during placement is ensured, and inaccurate images caused by shaking during inspection are avoided; the first image acquisition camera is moved to the top of the inspection area to photograph and inspect the mounting position of the component, the output end of the air cylinder drives the second image acquisition camera to extend, the second image acquisition camera inspects the appearance of the circuit board, and the function of diversified inspection of the circuit board is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board inspection, and more specifically, to a printed circuit board inspection device. Background Art

[0002] A printed circuit board inspection device is a device used to inspect the quality of printed circuit boards. It ensures the quality and reliability of PCBs during the production process by inspecting issues such as circuit connection, welding quality, and component installation of the PCB. Among them, it was found through searching that a utility model patent with patent application number CN202020746981.5 discloses a printed circuit board inspection device including a conveyor table, a plurality of elastic pressure rollers arranged above the conveyor table, and an imaging device arranged above two adjacent elastic pressure rollers. The conveyor table is used to convey the printed circuit board; the plane where the elastic pressure roller is located is parallel to the upper surface of the conveyor table, and the printed circuit board can pass between the elastic pressure roller and the conveyor table and be pressed against the conveyor table by the elastic pressure roller. The imaging device is used to collect image information of the printed circuit board;

[0003] When the structure is in use, the printed circuit board is tightly pressed against the conveyor table by the elastic pressure roller, so that the printed circuit board between the elastic pressure rollers is in a flat state, thereby preventing the area to be inspected of the rigid printed circuit board from being affected by the warping of the four corners of the printed circuit board, which is beneficial for the imaging device to collect image information of the area to be inspected of the rigid printed circuit board. However, the structure is not easy to position the circuit board to be inspected when in use, and is prone to shaking, resulting in inaccurate image information during inspection. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a printed circuit board inspection device, aiming to solve the problems raised in the above background technology.

[0005] The utility model is implemented in this way, and the utility model provides the following technical solutions:

[0006] A printed circuit board inspection device comprises a base for support, a positioning inspection assembly is arranged on the base; the positioning inspection assembly comprises two horizontal plates arranged on the top of the base, a test platform installed on the base for lifting is arranged on the top of the horizontal plates, and a test area is arranged on the top of the test platform; electric push rods are arranged at both ends of the horizontal plates, and a pressure arm is arranged at the output end of each of the electric push rods, and a rubber block is arranged at one end of the pressure arm;

[0007] It can be seen that in the above technical solution, the circuit board is placed on the inspection area, and then the pressure arm is driven downward by the output end of the electric push rod, so that the rubber block can press on the circuit board to limit the circuit board, ensuring the stability of the circuit board when it is placed, and avoiding shaking during inspection to cause inaccurate images;

[0008] Optionally, in a possible implementation manner, a vertical pole for support is provided on one side of the top of the base, an external support seat extending to the top of the inspection table is provided on one side of the vertical pole, a hydraulic rod for driving is provided on the external support seat, a connecting frame is provided at the output end of the hydraulic rod, a first image acquisition camera for component installation position inspection is provided at the bottom of the connecting frame, the first image acquisition camera is detachably connected to the connecting frame, two guide rods for guiding are provided on the top of the connecting frame, and the top of each of the guide rods extends to the external support seat and is slidably connected to the external support seat, a cylinder is provided on the vertical pole and at the bottom of the external support seat, the cylinder is arranged obliquely downward, and a second image acquisition camera for circuit board appearance inspection is provided at the output end of the cylinder;

[0009] It can be seen that in the above technical solution, the first image acquisition camera is driven downward by the external support to drive the connecting frame through the guidance of the guide rod, so that the first image acquisition camera is easily moved to the top of the inspection area to take pictures and inspect the installation position of the components. The first image acquisition camera is driven downward by the external support to drive the connecting frame through the guidance of the guide rod, so that the first image acquisition camera is easily moved to the top of the inspection area to take pictures and inspect the installation position of the components.

[0010] Technical effects and advantages of the utility model:

[0011] By setting up a positioning inspection component, compared with the prior art, the overall design is simple and the structure is reasonable. Through the corresponding coordination of various structures, the pressure arm is driven downward by the recovery of the output end of the electric push rod, so that the rubber block can be pressed on the circuit board to limit the circuit board, thereby ensuring the stability of the circuit board when placed, and avoiding shaking during inspection to cause inaccurate images; and the first image acquisition camera is moved to the top of the inspection area to take pictures of the installation position of the components, and the output end of the cylinder drives the extension of the second image acquisition camera, and the second image acquisition camera inspects the appearance of the circuit board, thereby realizing the function of various inspections of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0013] Figure 1 It is the front view of the overall structure of the utility model.

[0014] Figure 2 It is a side view of the overall structure of the utility model.

[0015] Figure 3 It is a front view of the base, horizontal plate, vertical rod and external support seat of the utility model.

[0016] Figure 4 It is the front view of the inspection table and inspection area of ​​the utility model.

[0017] Figure 5 This is a front view of the cylinder and the second image acquisition camera of the utility model.

[0018] Figure 6 This is a front view of the hydraulic rod, guide rod, connecting frame and first image acquisition camera of the utility model.

[0019] In the figure: 1. base; 2. horizontal board; 3. inspection table; 4. inspection area; 5. electric push rod; 6. pressure arm; 7. rubber block; 8. vertical pole; 9. external support; 10. hydraulic rod; 11. connecting frame; 12. first image acquisition camera; 13. guide rod; 14. cylinder; 15. second image acquisition camera. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] As attached Figure 1-6A printed circuit board inspection device shown in the figure, through the positioning inspection component arranged on the base 1, the output end of the electric push rod 5 is recovered to drive the pressure arm 6 to move downward, so that the rubber block 7 can be pressed on the circuit board to limit the circuit board, ensure the stability of the circuit board when placed, avoid shaking during inspection and cause inaccurate images, the first image acquisition camera 12 is moved to the top of the inspection area 4 to take pictures and inspect the installation position of the components, the output end of the cylinder 14 drives the second image acquisition camera 15 to extend, and the second image acquisition camera 15 inspects the appearance of the circuit board, and the specific structure of the component is arranged as follows; the positioning inspection component includes two horizontal plates 2 arranged on the top of the base 1, and the top of the horizontal plate 2 is provided with an inspection table 3 installed on the base 1 for lifting, and the top of the inspection table 3 is provided with an inspection area 4; both ends of the horizontal plate 2 are provided with electric push rods 5, and each electric push rod 5 is provided with a pressure arm 6 at the output end, and a rubber block 7 is provided at one end of the pressure arm 6; a vertical pole 8 for support is provided on one side of the top of the base 1, and an outer bracket 9 extending to the top of the inspection table 3 is provided on one side of the vertical pole 8, and a hydraulic rod 10 for driving is provided on the outer bracket 9, and a connecting frame 11 is provided at the output end of the hydraulic rod 10, and a first image acquisition camera 12 for component installation position inspection is provided at the bottom of the connecting frame 11, and the first image acquisition camera 12 is detachably connected to the connecting frame 11, and two guide rods 13 for guiding are provided on the top of the connecting frame 11, and the top of each guide rod 13 extends to the outer bracket 9 and is slidably connected to the outer bracket 9, and a cylinder 14 is provided on the vertical pole 8 and at the bottom of the outer bracket 9, and the cylinder 14 is arranged obliquely downward, and a second image acquisition camera 15 for circuit board appearance inspection is provided at the output end of the cylinder 14.

[0022] According to the above structure, when in use, the staff installs the device at the designated position, and when inspecting the circuit board, the circuit board is placed on the inspection area 4, and then the pressure arm 6 is driven downward by the output end of the electric push rod 5, so that the rubber block 7 can press on the circuit board to limit the circuit board, ensuring the stability of the circuit board when placed, and avoiding shaking during inspection to cause inaccurate images;

[0023] At the same time, the connecting frame 11 is driven by the external support 9 to move the first image acquisition camera 12 downward under the guidance of the guide rod 13, so that the first image acquisition camera 12 can be easily moved to the top of the inspection area 4 to take pictures of the installation position of the components to check whether the components on the circuit board are installed correctly, accurately positioned, and with correct polarity, etc. When in use, the device can be started by the cylinder 14, and the output end of the cylinder 14 drives the second image acquisition camera 15 to extend. The second image acquisition camera 15 inspects the appearance of the circuit board to check whether the appearance of the circuit board is intact, such as scratches, deformation, damage, etc.

[0024] Different from the prior art, the present application discloses a printed circuit board inspection device, in which the output end of the electric push rod 5 is recovered to drive the pressure arm 6 to move downward, so that the rubber block 7 can be pressed on the circuit board to limit the circuit board, thereby ensuring the stability of the circuit board when placed and avoiding shaking during inspection to cause inaccurate images. The first image acquisition camera 12 is moved to the top of the inspection area 4 to take photos of the component installation position for inspection, and the output end of the cylinder 14 drives the second image acquisition camera 15 to extend, and the second image acquisition camera 15 inspects the appearance of the circuit board.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printed circuit board inspection device, comprising a base (1) for supporting, characterized in that: The base (1) is provided with a positioning inspection component; the positioning inspection component comprises two horizontal plates (2) arranged on the top of the base (1); the top of the horizontal plates (2) is provided with an inspection platform (3) mounted on the base (1) for lifting; the top of the inspection platform (3) is provided with an inspection area (4); both ends of the horizontal plates (2) are provided with electric push rods (5), and the output end of each electric push rod (5) is provided with a pressure arm (6), and one end of the pressure arm (6) is provided with a rubber block (7).

2. The printed circuit board inspection device according to claim 1, characterized in that: A vertical pole (8) for support is provided on one side of the top of the base (1), and an external support seat (9) extending to the top of the inspection table (3) is provided on one side of the vertical pole (8).

3. The printed circuit board inspection device according to claim 2, characterized in that: A hydraulic rod (10) for driving is arranged on the outer bracket (9), and a connecting frame (11) is arranged at the output end of the hydraulic rod (10).

4. The printed circuit board inspection device according to claim 3, characterized in that: A first image acquisition camera (12) for inspecting the installation position of components is arranged at the bottom of the connection frame (11); the first image acquisition camera (12) is detachably connected to the connection frame (11).

5. The printed circuit board inspection device according to claim 3, characterized in that: Two guide rods (13) for guiding are arranged on the top of the connecting frame (11), and the top of each guide rod (13) extends to the outer bracket (9) and is slidably connected to the outer bracket (9).

6. The printed circuit board inspection device according to claim 2, characterized in that: A cylinder (14) is provided on the upright pole (8) and at the bottom of the outer bracket (9); the cylinder (14) is arranged to be tilted downward, and a second image acquisition camera (15) for circuit board appearance inspection is provided at the output end of the cylinder (14).

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