Rapid detection device for circuit of printed circuit board

Abstract

The utility model relates to the technical field of printed circuit board line detection, in particular to a rapid printed circuit board line detection device which comprises a supporting mechanism used for supporting the whole device, and the supporting mechanism comprises two supporting frames and a conveying belt installed between the two supporting frames. The supporting mechanism is provided with a detection mechanism which is used for carrying out optical detection on two sides of the circuit simultaneously. According to the utility model, through the arrangement of the detection mechanism, the device can record and detect lines on the two sides of the circuit board at the same time, the circuit board fixed by the plurality of semicircular clamping rods is driven to move through the conveyor belt, and the center line position of the circuit board is compared through the center line plate; the circuit board is located at the center position when moving to the position between the two optical recorders, the recording effect of the circuit board is guaranteed, the optical detectors conduct comparative analysis on obtained images and pre-stored standard images through the connecting lines, and the detection efficiency of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board circuit testing technology, specifically a rapid testing device for printed circuit board circuits. Background Technology

[0002] A printed circuit board (PCB) is an assembly board with conductive patterns formed on an insulating substrate. It is mainly used for the mechanical support and electrical connection of electronic components. To ensure product quality and reliability, both sides of the PCB are usually inspected after production. In current technology, most PCBs are inspected on one side first, and then the entire PCB is flipped over to inspect the other side. This process is cumbersome and greatly reduces the efficiency of PCB inspection. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rapid testing device for printed circuit board lines, which has the advantages of being able to simultaneously test both sides of the circuit board and having high testing efficiency, thus solving the problem of the cumbersome process of requiring the circuit board to be flipped over twice for testing in existing technologies.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A rapid testing device for printed circuit board lines includes a support mechanism for supporting the entire device. The support mechanism includes two support frames and a conveyor belt installed between the two support frames. The support mechanism is equipped with a testing mechanism for simultaneous optical inspection of both sides of the circuit. The testing mechanism includes a fixing plate fixedly connected to the top of the two support frames. A connecting plate is fixedly connected to the top of the two fixing plates. An optical inspection instrument is mounted on the top of the connecting plate. Optical recorders for photographing and recording both sides of the circuit board are mounted on opposite sides of the two fixing plates. A connecting line is installed between the two optical recorders and the optical inspection instrument. Two center line plates are fixedly connected to opposite sides of each of the two fixing plates. The conveyor belt is equipped with multiple fixing components for fixing circuit boards of different specifications.

[0006] Preferably, the fixing assembly includes a base plate mounted on the conveyor belt, a fixing rod fixedly connected to the base plate, a bidirectional screw rotatably connected to the base plate, a support plate threadedly connected to each of the two threaded sections of the bidirectional screw, a semi-circular clamping rod fixedly connected to each of the two support plates on opposite sides, and a top plate fixedly connected to the top of the fixing rod.

[0007] Preferably, the top plate is rotatably connected to the other end of the bidirectional screw, both support plates are slidably connected to the fixed rod, and a micro motor for driving the bidirectional screw is installed inside the bottom plate.

[0008] Preferably, the horizontal centerline of the distance between the bottom plate and the top plate is the same as the horizontal centerline of the centerline plate.

[0009] Preferably, the distance between the bottom of the conveyor belt and the ground is greater than the distance between the top of the conveyor belt and the bottom of the connecting plate.

[0010] Preferably, anti-slip pads are installed on the side of each of the semi-circular clamps closest to the circuit board.

[0011] By employing the above technical solution, this utility model provides a rapid testing device for printed circuit board lines, which has at least the following beneficial effects:

[0012] 1. This utility model enables the device to simultaneously record and detect the circuitry on both sides of a circuit board by setting up a detection mechanism. The circuit board, which is fixed by multiple semi-circular clamps, is moved by a conveyor belt. The center line plate compares the center line position of the circuit board, ensuring that the circuit board is centered when it moves between two optical recorders, thus guaranteeing the recording effect of the circuit board. The optical detector compares and analyzes the acquired image with the pre-stored standard image through the connecting line, which greatly improves the detection efficiency of the device.

[0013] 2. This utility model enables the device to fix circuit boards of different specifications by setting a fixing component. The micro motor drives the bidirectional screw to rotate, which makes it easy to adjust the distance between the two support plates, thus improving the applicability of the device. At the same time, since the support plates are adjusted synchronously, the center line of the circuit board held and fixed by multiple semi-circular clamps is always located at the center line plate, ensuring the recording effect of the optical recorder. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the testing mechanism of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the testing mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fixing component of this utility model.

[0019] Figure label:

[0020] 1. Support mechanism; 101. Support frame; 102. Conveyor belt; 2. Detection mechanism; 201. Fixing plate; 202. Connecting plate; 203. Optical detector; 204. Optical recorder; 205. Connecting line; 206. Center plate; 207. Fixing assembly; 2071. Base plate; 2072. Bidirectional screw; 2073. Fixing rod; 2074. Support plate; 2075. Semi-circular clamping rod; 2076. Top plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To ensure product quality and reliability, it is usually necessary to inspect both sides of the PCB board after production. In the existing technology, most methods first inspect one side of the PCB board, and then flip the PCB board over to inspect the other side. This process is cumbersome and greatly reduces the inspection efficiency of the PCB board. The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a rapid inspection device for printed circuit board lines.

[0023] Example 1:

[0024] To improve the efficiency of circuit board circuit testing, combined with... Figures 1-4 As shown, a rapid testing device for printed circuit board lines is proposed. A support mechanism 1 is set to support the entire device. A testing mechanism 2 is set on the support mechanism 1. The testing mechanism 2 is used to perform optical testing on both sides of the circuit at the same time.

[0025] To simultaneously inspect the double-sided circuitry of a circuit board, an inspection mechanism 2 is proposed. This mechanism comprises two support frames 101 with fixed plates 201 fixedly connected to their tops. Connecting plates 202 are fixedly connected to the tops of the two fixed plates 201, and an optical inspection instrument 203 is mounted on the top of the connecting plates 202. Optical recorders 204 for photographing and recording both sides of the circuit board are mounted on opposite sides of the two fixed plates 201. Connecting lines 205 are installed between each optical recorder 204 and the optical inspection instrument 203. Two centerline plates 206 are fixedly connected to opposite sides of each of the two fixed plates 201. Multiple fixing components 207 are provided on the conveyor belt 102 to fix circuit boards of different specifications. 02 drives the circuit boards within multiple fixed components 207 to move. Multiple centerline plates 206 are used to easily compare the centerline position of the circuit boards, ensuring that the circuit boards always move along the center plate. This ensures the recording effect of the two optical recorders 204 on the double-sided circuits of the circuit boards. After the two optical recorders 204 have finished recording the images, the optical inspection instrument 203 compares and analyzes the acquired images with the pre-stored standard images through the connecting line 205. The optical inspection instrument 203 can quickly and accurately detect various defects on the surface of the circuit boards, such as short circuits, open circuits, component offsets, and missing parts. It has a fast detection speed, high accuracy, and good repeatability, and can achieve 24-hour uninterrupted detection, which greatly improves the detection efficiency and reliability.

[0026] Example 2:

[0027] Based on Embodiment 1, the technical solution proposed in Embodiment 1 is used to solve the problem that the process of converting and detecting the two sides of the circuit board in the prior art is cumbersome and greatly reduces the detection efficiency of the PCB board. However, in order to ensure the applicability of the device, the device should be able to fix circuit boards of different specifications.

[0028] In order for the device to effectively fix circuit boards of different specifications, combined with Figure 1 and Figure 4As shown, a fixing component 207 is proposed. A base plate 2071 is installed on the conveyor belt 102. A fixing rod 2073 is fixedly connected to the base plate 2071. A bidirectional screw 2072 is rotatably connected to the base plate 2071. Support plates 2074 are threadedly connected to both threaded sections of the bidirectional screw 2072. Semicircular clamping rods 2075 are fixedly connected to opposite sides of the two support plates 2074. Anti-slip pads are installed on the side of the multiple semicircular clamping rods 2075 near the circuit board to ensure the stability of the circuit board when clamped and fixed. A top plate 2076 is fixedly connected to the top of the fixing rod 2073. The top plate 2076 is rotatably connected to the other end of the bidirectional screw 2072. Both support plates 2074 are connected to the fixing rod 2073. The two plates are slidably connected. A micro motor for driving the bidirectional screw 2072 is installed in the base plate 2071. The horizontal center line of the distance between the base plate 2071 and the top plate 2076 is the same as the horizontal center line of the center plate 206. The micro motor drives the bidirectional screw 2072 to rotate, so that the two support plates 2074 can move relative to each other along the fixing rod 2073. This allows the distance between them to be easily adjusted, thereby clamping and fixing circuit boards of different specifications and improving the applicability of the device. At the same time, since the support plates 2074 are adjusted synchronously relative to each other, the center line of the circuit board clamped and fixed by multiple semi-circular clamping rods 2075 is always located at the center plate 206, further ensuring the recording effect of the optical recorder 204.

[0029] To support the entire device, a support mechanism 1 is proposed, which consists of two support frames 101 and a conveyor belt 102 installed between the two support frames 101. The two support frames 101 connect and fix multiple mechanisms together, and the conveyor belt 102 ensures that the circuit board can be continuously tested. The distance between the bottom of the conveyor belt 102 and the ground is greater than the distance between the top of the conveyor belt 102 and the bottom of the connecting plate 202, so that the conveyor belt 102 can transport materials stably.

[0030] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid testing device for printed circuit board lines, comprising a support mechanism (1) for supporting the entire device, the support mechanism (1) comprising two support frames (101) and a conveyor belt (102) installed between the two support frames (101), characterized in that: The support mechanism (1) is provided with a detection mechanism (2) for simultaneous optical detection of both sides of the circuit. The testing mechanism (2) includes a fixed plate (201) fixedly connected to the top of two support frames (101), a connecting plate (202) fixedly connected to the top of the two fixed plates (201), an optical detector (203) installed on the top of the connecting plate (202), an optical recorder (204) for taking pictures and recording both sides of the circuit board is installed on the opposite side of the two fixed plates (201), a connecting line (205) is installed between the two optical recorders (204) and the optical detector (203), two center line plates (206) are fixedly connected to the opposite side of the two fixed plates (201), and a plurality of fixing components (207) for fixing circuit boards of different specifications are provided on the conveyor belt (102).

2. The rapid testing device for printed circuit board lines according to claim 1, characterized in that: The fixing component (207) includes a base plate (2071) mounted on the conveyor belt (102), a fixing rod (2073) fixedly connected to the base plate (2071), a bidirectional screw (2072) rotatably connected to the base plate (2071), a support plate (2074) threadedly connected to each of the two threaded sections of the bidirectional screw (2072), a semi-circular clamping rod (2075) fixedly connected to each of the two support plates (2074) on opposite sides, and a top plate (2076) fixedly connected to the top of the fixing rod (2073).

3. The rapid testing device for printed circuit board lines according to claim 2, characterized in that: The top plate (2076) is rotatably connected to the other end of the bidirectional screw (2072), and both support plates (2074) are slidably connected to the fixed rod (2073). A micro motor for driving the bidirectional screw (2072) is installed inside the bottom plate (2071).

4. The rapid testing device for printed circuit board lines according to claim 2, characterized in that: The horizontal centerline of the distance between the bottom plate (2071) and the top plate (2076) is the same as the horizontal centerline of the centerline plate (206).

5. The rapid testing device for printed circuit board lines according to claim 1, characterized in that: The distance between the bottom of the conveyor belt (102) and the ground is greater than the distance between the top of the conveyor belt (102) and the bottom of the connecting plate (202).

6. The rapid testing device for printed circuit board lines according to claim 2, characterized in that: Anti-slip pads are installed on the side of each of the semi-circular clamps (2075) near the circuit board.

Images