Multi-light-source auxiliary PCB (Printed Circuit Board) defect detection device

Abstract

The utility model relates to the field of PCB detection, and discloses a multi-light-source-assisted PCB defect detection device which comprises a device shell and a door body hinged to a notch of the device shell, supporting feet are installed at the four corners of the lower surface of the device shell, a sliding plate is slidably connected into the device shell, and a light source is installed in the sliding plate. A plurality of fixed plates are distributed on one side of the upper surface of the sliding plate at equal intervals, a fixed plate is fixedly connected to the side, away from the fixed plates, of the upper surface of the sliding plate, a plurality of guide rods penetrate through the fixed plate at equal intervals, and if a transverse rod is pulled through external force to drive the guide rods to transversely move, the movable plates synchronously move on the upper surface of the sliding plate in an attached mode, so that a PCB is conveniently placed; when the PCB is detected, a plurality of limiting springs in a compressed state rebound to drive the movable plate to reset, so that the PCB is clamped and limited, a rotating column does not need to be twisted for multiple times in the whole process, the placement and the limiting of the plurality of PCBs before detection can be completed only by controlling a cross rod, and the operation process is simplified.

Description

Technical Field

[0001] The present application relates to the field of PCB board detection, and in particular to a multi-light source assisted PCB board defect detection device. Background Art

[0002] Automatic optical inspection systems have been widely used in the PCB inspection industry to detect PCB defects by using the captured images.

[0003] However, it is found in the actual operation process that the above-mentioned existing technology has the following problems in the process of clamping the PCB board: when detecting multiple PCB boards, it is necessary to first remove the already detected PCB board before replacing the PCB board. However, the PCB board in the existing technology is fixed between two limit blocks. As a result, when in use, it is necessary to sequentially turn a plurality of rotating columns for limiting to change the distance between the limit blocks in order to control the tightness of the PCB board, and the limiting method is too cumbersome, increasing the operation time of the staff. Utility Model Content

[0004] In order to solve the problem that in the prior art, it is necessary to sequentially turn a plurality of rotating columns for limiting to change the distance between the limit blocks, and the limiting method is too cumbersome, increasing the operation time of the staff, the present application provides a multi-light source assisted PCB board defect detection device. The multi-light source assisted PCB board defect detection device provided by the present application adopts the following technical solutions:

[0005] A multi-light source assisted PCB board defect detection device includes a device housing and a door body hinged at the notch of the device housing. Four corners of the lower surface of the device housing are each provided with a support leg. A slide plate is slidably connected inside the device housing. A plurality of fixed plates are equidistantly distributed on one side of the upper surface of the slide plate. A fixed plate is fixedly connected to the side of the upper surface of the slide plate away from the fixed plates. A plurality of guide rods penetrate through the fixed plate at equal intervals. A cross bar is fixedly connected to the outer ends of the plurality of guide rods together. A plurality of moving plates are elastically connected to the outer side of the fixed plate, and the plurality of moving plates are fixedly connected to the ends of the corresponding guide rods in sequence.

[0006] Preferably, a plurality of limiting springs are elastically connected between the plurality of moving plates and the fixed plate, and the plurality of limiting springs are sequentially sleeved on the outer sides of the corresponding guide rods.

[0007] Preferably, slide rails are installed on both sides of the inner wall of the device housing. A support plate is slidably connected between the two slide rails, and the upper surface of the support plate is fixedly connected to the lower surface of the slide plate.

[0008] Preferably, a U-shaped pull rod is installed at the lower edge of one side of the slide plate, which is convenient for the user to apply an external force to control the slide plate.

[0009] Preferably, several of the fixed plates and several of the moving plates form a group in pairs, and the distribution positions of a group of fixed plates and moving plates are opposite to each other.

[0010] In summary, the present application includes the following beneficial technical effects:

[0011] By pulling the cross bar with an external force, driving multiple guide rods to move horizontally, enabling multiple moving plates to move synchronously and fit on the upper surface of the sliding plate, facilitating the placement of the PCB board. Cooperating with the rebound of multiple limiting springs in a compressed state, driving the moving plates to reset, thereby clamping and limiting the placed PCB board. The entire process does not require repeatedly turning the rotating column. Only by controlling the cross bar, the placement and limitation before the detection of multiple PCB boards can be completed, simplifying the operation process and reducing the operation time of the staff. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the main body of the detection device according to the embodiment of the application;

[0013] Figure 2 is a schematic structural diagram of the internal details of the device housing according to the embodiment of the application;

[0014] Figure 3 is the Figure 2 schematic structural diagram of the enlarged details at A according to the embodiment of the application;

[0015] Figure 4 is a schematic structural diagram of the details above the sliding plate according to the embodiment of the application.

[0016] Description of the reference numerals: 1, device housing; 2, support feet; 3, fixed plate; 4, sliding plate; 5, U-shaped pull rod; 6, cross bar; 7, door body; 8, moving plate; 9, fixed plate; 10, slide rail; 11, support plate; 12, limiting spring; 13, guide rod. Detailed Embodiments

[0017] The following further Figures 1-4 describes the present application in detail with reference to the

[0018] The embodiment of the present application discloses a multi-light source assisted PCB board defect detection device. Refer to Figure 1 and Figure 2 and Figure 3 and Figure 4, A multi-light source assisted PCB board defect detection device, which includes a device housing 1 and a door body 7 hinged at the notch of the device housing 1. At the four corners of the lower surface of the device housing 1, feet 2 are installed. Through the door body 7, it is convenient to close the opening on one side of the device housing 1 to avoid external light interference during detection. Inside the device housing 1, a CCD detection mechanism is installed. The CCD image sensor of the machine vision product converts the image signal and transmits it to the image processing system. The image system performs various operations on these signals, extracts the features of the target, and realizes the detection of the PCB. The above-mentioned related technologies are existing mature technologies and will not be elaborated too much in this application document;

[0019] Inside the device housing 1, a slide plate 4 is slidably connected. On one side of the upper surface of the slide plate 4, a number of fixed plates 3 are equidistantly distributed. On the side of the upper surface of the slide plate 4 away from the fixed plates 3, a fixed plate 9 is fixedly connected. A number of guide rods 13 penetrate through the fixed plate 9 equidistantly. At the outer ends of the number of guide rods 13, a cross bar 6 is fixedly connected together. On the outer side of the fixed plate 9, a number of moving plates 8 are elastically connected, and the number of moving plates 8 are fixedly connected to the ends of the corresponding guide rods 13 in sequence. Through the cross bar 6, it is convenient to control the movement of a number of guide rods 13 simultaneously by an external force. Then, the guide rods 13 drive the moving plates 8 at their ends to move on the upper surface of the slide plate 4, changing the distance between the fixed plates 3 and the moving plates 8, and realizing the limitation of the PCB board.

[0020] Refer to Figure 4 , In this device, a number of limiting springs 12 are elastically connected between the number of moving plates 8 and the fixed plate 9, and the number of limiting springs 12 are sequentially sleeved on the corresponding guide rods 13. Through the guide rods 13, it is avoided that the limiting springs 12 are deformed and misaligned, ensuring the stable lateral movement of the moving plates 8, so that the moving plates 8 can elastically move on one side of the fixed plate 9, facilitating the cooperation with the fixed plates 3 to realize the limitation of the PCB board.

[0021] Refer to Figure 1 And Figure 2 As well as Figure 3 , On both sides of the inner wall of the device housing 1, slide rails 10 are installed. Between the two slide rails 10, a support plate 11 is slidably connected together, and the upper surface of the support plate 11 is fixedly connected to the lower surface of the slide plate 4. The device housing 1 moves between the two slide rails 10 at both ends, providing support under the slide plate 4 while ensuring the stable movement of the slide plate 4 inside the device housing 1.

[0022] Refer to Figure 4 , In this device, a U-shaped pull rod 5 is installed at the lower edge of one side of the slide plate 4. Through the U-shaped pull rod 5, it is convenient for the user to apply an external force to control the slide plate 4 and pull the slide plate 4 to move inside the device housing 1.

[0023] Refer to Figure 4In the device, a plurality of fixed plates 3 and a plurality of movable plates 8 are grouped in pairs, and a group of fixed plates 3 and movable plates 8 are arranged in relative positions, so that the fixed plates 3 and movable plates 8 of the same group can limit the PCB board, and it is convenient to enter the internal part of the device housing 1 for subsequent inspection.

[0024] The implementation principle of a multi-light source assisted PCB board defect detection device in the embodiment of the present application is:

[0025] When in use, the cross bar 6 is pulled by external force, and then the cross bar 6 drives the multiple guide rods 13 to move horizontally, and then the multiple guide rods 13 move to drive the multiple movable plates 8 to move in contact with the upper surface of the slide plate 4, and at the same time, the multiple limit springs 12 are in a compressed state, and then the PCB board to be tested can be placed between each group of fixed plates 3 and movable plates 8 in turn. When the placement is completed, the external force control of the cross bar 6 can be released. At this time, the multiple limit springs 12 in the compressed state rebound, driving the movable plate 8 to reset, thereby clamping and limiting the PCB board.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-light-source assisted PCB board defect detection device, comprising a device housing (1) and a door body (7) hinged at the notch of the device housing (1). Four corners of the lower surface of the device housing (1) are each provided with a support leg (2), and it is characterized in that: A slide plate (4) is slidably connected inside the device housing (1). On one side of the upper surface of the slide plate (4), a number of fixed plates (3) are equidistantly distributed. On the side of the upper surface of the slide plate (4) away from the fixed plates (3), a fixed plate (9) is fixedly connected. A number of guide rods (13) penetrate through the fixed plate (9) equidistantly. At the outer ends of the number of guide rods (13), a cross bar (6) is fixedly connected together. On one side of the outside of the fixed plate (9), a number of moving plates (8) are elastically connected, and the number of moving plates (8) are fixedly connected to the ends of the corresponding guide rods (13) in sequence.

2. The multi-light-source assisted PCB board defect detection device according to claim 1, wherein: A number of limiting springs (12) are elastically connected between the number of moving plates (8) and the fixed plate (9), and the number of limiting springs (12) are sleeved on the outside of the corresponding guide rods (13) in sequence.

3. A multi-light-source assisted PCB board defect detection device according to claim 1, characterized in that: Sliding rails (10) are installed on both sides of the inner wall of the device housing (1). A support plate (11) is slidably arranged between the outside of the two sliding rails (10), and the upper surface of the support plate (11) is fixedly connected to the lower surface of the slide plate (4).

4. A multi-light-source assisted PCB board defect detection device according to claim 1, characterized in that: A U-shaped pull rod (5) is installed at the lower edge of one side of the slide plate (4), which is convenient for the user to apply an external force to control the slide plate (4).

5. A multi-light-source assisted PCB board defect detection device according to claim 1, characterized in that: The number of fixed plates (3) and the number of moving plates (8) form a group in pairs, and the distribution positions of a group of fixed plates (3) and moving plates (8) are opposite.

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