Plate image acquisition equipment of plate detection system

Abstract

The utility model discloses plate image acquisition equipment of a plate detection system, which comprises an equipment main frame and a base bracket, a working bin is arranged at the upper part of the equipment main frame, the base bracket penetrates through the lower part of the equipment main frame, a conveying belt for conveying plates is fixedly arranged on the base bracket, and the working bin is arranged above the conveying belt; a first camera assembly used for shooting images of the front side faces of the plates and a second camera assembly used for shooting images of the rear side faces of the plates are sequentially and fixedly arranged in the working bin in the plate conveying direction from front to back, and a first light source assembly used for supplementing light to the front side faces of the plates during shooting is fixedly arranged beside the first camera assembly. A first camera assembly is fixedly installed beside the first light source assembly, a second camera assembly is fixedly installed beside the second camera assembly, a second light source assembly is fixedly installed beside the second camera assembly and used for supplementing light to the rear side faces of the plates during shooting, and the first camera assembly, the first light source, the second camera assembly and the second light source assembly are connected with the equipment main frame through camera supports. The working efficiency is high.

Description

Technical Field

[0001] This utility model belongs to the field of visual inspection technology, and particularly relates to board material inspection technology, specifically an image acquisition device for a board material inspection system. Background Technology

[0002] The development and maturation of random machine vision inspection technology has made the detection of board dimensions and defects through machine vision a growing trend in the field of board inspection technology. Traditional board inspection techniques involve inspecting both the front and back surfaces of the board. However, since boards have a hexahedral structure, defects may exist on each surface. Traditional inspection machines can only perform two-sided inspection and cannot observe all six surfaces. Patent CN107966102A discloses a six-sided inspection device for board production. This device uses CCD cameras positioned at corresponding positions on the front, back, top, bottom, left, and right sides of the board to acquire images of all six surfaces, and then calculates the board's contour parameters. However, this patent uses a static inspection method. When inspecting the top and bottom surfaces of the board, conveyor belts 1-5 stop running, and the board remains stationary. This means that when the CCD cameras on the top, bottom, left, and right sides are fixed in the middle of the belt conveyor, the image acquisition range of the CCD cameras is limited because the distance and relative position between the CCD cameras and the board are fixed. When the board is long, the images acquired by the CCD cameras cannot cover the entire surface of the board, creating blind spots and making the obtained parameters prone to deviation. Chinese patent CN 112362667 A discloses an improved six-sided inspection device for board production. This device uses a four-sided rotating inspection mechanism to drive the camera to achieve single-camera inspection of four surfaces of the board, thereby reducing costs. Both of these devices inspect the board while it is static, resulting in low inspection efficiency and failing to meet the requirements for board inspection. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that current equipment tests sheet metal in a static state, resulting in low testing efficiency and failing to meet the requirements for sheet metal testing.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a board image acquisition device for a board inspection system, comprising a main frame and a base bracket. The main frame has a working chamber at its upper part, and the base bracket extends through the lower part of the main frame. A conveyor belt for conveying boards is fixedly mounted on the base bracket. The working chamber is located above the conveyor belt. A first camera assembly for capturing images of the front side of the board and a second camera assembly for capturing images of the rear side of the board are fixedly mounted sequentially in the working chamber along the board conveying direction. A first light source assembly for supplementing light to the front side of the board during shooting is fixedly mounted next to the first camera assembly, and a second light source assembly for supplementing light to the rear side of the board during shooting is fixedly mounted next to the second camera assembly. The first camera assembly and the first light source assembly are connected to the main frame of the device through a first camera bracket, and the second camera assembly and the second light source assembly are connected to the main frame of the device through a second camera bracket.

[0005] Furthermore, a linear module and a motor driving the linear module 1 are fixedly installed on the main frame of the equipment in the working chamber. The moving part of the linear module can move horizontally along the width direction of the plate and is fixedly connected to a third camera assembly for taking pictures of one side of the plate through a third camera bracket. The third camera bracket is connected to the third light source assembly through a first light source bracket.

[0006] Furthermore, a fourth camera assembly for photographing the other side of the plate is connected to the fixed part on one side of the conveyor belt via a fourth camera bracket, and the fourth camera bracket is connected to the fourth light source assembly via a second light source bracket.

[0007] Furthermore, a fifth camera assembly for capturing images of the top surface of the board is connected to the top of the main frame of the equipment in the working chamber via a fifth camera bracket, and a fifth light source assembly for supplementing light to the top surface of the board during shooting is fixedly connected next to the fifth camera assembly via a hanging arm.

[0008] Compared with the prior art, the beneficial effects of this utility model are: when the board is fed into the board image acquisition device by the conveyor belt, the camera component can acquire board image information while the board is in motion, and can achieve acquisition from multiple directions, and transmit the acquired image information to the computer system for analysis, to detect the size and defects of the board. This equipment is easy to assemble, adaptable to the detection of boards of different sizes and models, and has high working efficiency. Attached Figure Description

[0009] Figure 1 The figure shown is an overall structural diagram of this utility model.

[0010] Figure 2 The diagram shown is a structural diagram of the main equipment of this utility model.

[0011] Figure 3 The diagram shown is an internal structural diagram of the main equipment of this utility model.

[0012] Figure 4 The diagram shown is a partial structural diagram of the present invention.

[0013] Figure 5 The diagram shows the installation of the first camera assembly and the second camera assembly of this utility model.

[0014] Figure 6 The figure shown is an installation diagram of the third camera assembly of this utility model.

[0015] Figure 7 The figure shown is an installation diagram of the fourth camera assembly of this utility model.

[0016] The equipment includes: main frame 1, working chamber 1-2, linear module 1-3, base bracket 1-4, conveyor belt 1-5, second camera assembly 2, first camera assembly 3, third camera assembly 4-1, third light source assembly 4-11, third camera bracket 4-12, first light source bracket 4-13, fourth camera assembly 4-2, fourth light source assembly 4-21, fourth camera bracket 4-22, second light source bracket 4-23, fifth camera assembly 5, fifth light source assembly 5-1, auxiliary frame 6, support leg assembly 6-1, touch screen hanging box 7, and touch screen 8. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication between two components. In this embodiment, the directions such as "upper," "lower," "left," "right," "front," and "rear" mentioned are understood according to the accompanying drawings or the actual working posture of the equipment. The definitions of "first," "second," etc., are not indicative of quantities, but are used to distinguish different components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0018] Existing board inspection equipment detects boards in a static state, resulting in low inspection efficiency and failing to meet the requirements for board inspection efficiency. This embodiment aims to provide a board inspection image acquisition device and board inspection system to solve the problem of low board inspection efficiency.

[0019] Example 1, Reference Figures 1-7A sheet metal image acquisition device for a sheet metal inspection system includes a main frame 1 and a base bracket 1-4. The main frame 1 is constructed from steel metal parts of various shapes, serving to install and support equipment components. The upper part of the main frame 1 has a working chamber 1-2, which is enclosed by sheet metal parts. The working chamber is used to install equipment components and provide space for sheet metal inspection. The lower part of the main frame 1 has a clearance channel, through which the base bracket 1-4 passes. A conveyor belt 1-5 for conveying sheet metal is fixedly mounted on the base bracket 1-4. The working chamber 1-2 is located above the conveyor belt 1-5. The sheet metal is sequentially fixed within the working chamber 1-2 along the sheet metal conveying direction. The device includes a first camera assembly 3 for capturing images of the front side of the board and a second camera assembly 2 for capturing images of the rear side of the board. A first light source assembly for providing supplemental lighting to the front side of the board during shooting is fixed next to the first camera assembly 3, and a second light source assembly for providing supplemental lighting to the rear side of the board during shooting is fixed next to the second camera assembly 2. The first camera assembly 3 and the first light source assembly are connected to the main frame 1 of the device via a first camera bracket, and the second camera assembly 2 and the second light source assembly are connected to the main frame 1 of the device via a second camera bracket. Preferably, the first camera assembly 3 and the first light source assembly are integrated into one device, and the second camera assembly 2 and the second light source assembly are also integrated into one device, both using camera assemblies with built-in light sources, which simplifies the structure and increases the level of intelligence. Figure 5 The fixing structure of the first camera assembly 3 is as follows: a connecting rod is fixedly installed on the front side of the main frame 1 of the equipment along the left and right direction. Two first camera brackets are installed on the same connecting rod, and the first camera assembly 3 is installed on each first camera bracket. Similarly, the fixing mechanism of the second camera assembly 2 is the same as that of the first camera assembly 3, that is, a connecting rod is fixedly installed on the rear side of the main frame 1 of the equipment along the left and right direction. Two second camera brackets are installed on the same connecting rod, and the second camera assembly 2 is installed on each second camera bracket. This structure can photograph and inspect larger-sized plates.

[0020] In order to install electrical control equipment and place computer equipment, this utility model also includes an auxiliary frame 6. The left and right sides of the main frame 1 of the equipment are respectively fixedly connected to an auxiliary frame 6. The bottom of the auxiliary frame 6 is provided with a support foot assembly 6-1. The auxiliary frame 6 adopts a square compartment structure and has an installation compartment inside. The installation compartment is used to install electrical control equipment and computer equipment. The auxiliary frame 6 can assist the main frame of the equipment in supporting the equipment and play a role in reinforcement. At the same time, it can install and place various expensive equipment, which is highly practical.

[0021] The auxiliary frame 6 is connected to a touch screen hanging box 7 that rotates horizontally along the vertical central axis. The touch screen hanging box 7 is equipped with a touch screen 8 for system operation. The touch screen hanging box 7 can rotate horizontally at a certain angle. When the operating angle of the touch screen is not good, the orientation of the touch screen can be adjusted by adjusting the angle of the touch screen hanging box 7, which facilitates the operation of the touch screen. This structure is highly flexible.

[0022] In Embodiment 1, after the board is fed into the board image acquisition device by the conveyor belt, the first camera assembly 3 and the second camera assembly 2 respectively capture images of the front and rear sides of the board, and transmit the acquired image information to the computer system for analysis to detect the size and defects of the board.

[0023] Example 2: Based on Example 1, the board image acquisition device further includes the following structure: A linear module 1-3 and a motor driving the linear module 1-3 are fixedly mounted on the main frame 1 within the working chamber 1-2. Specifically, the main frame 1 uses a boom to fix the linear module 1-3. The moving part of the linear module 1-3 can move horizontally along the width of the board and is fixedly connected to a third camera assembly 4-1 for capturing images of one side of the board via a third camera bracket 4-12. The third camera bracket 4-12 is connected to a third light source assembly 4-11 via a first light source bracket 4-13. The third light source assembly 4-11 provides supplementary lighting to the side of the board during shooting to assist the camera assembly in acquiring image information.

[0024] The linear module is an automation upgrade unit following linear guides, linear motion modules, and ball screw linear transmission mechanisms. It can realize the linear motion of the load through the combination of various units, making the automation of light loads more flexible and the positioning more accurate. The linear module is a well-known technology and will not be elaborated here.

[0025] After the board is conveyed into the board image acquisition device, the first camera assembly 3, the second camera assembly 2, and the third camera assembly 4-1 respectively capture images of the front side, rear side, and left side of the board (based on the orientation shown in the figure), and transmit the acquired image information to the computer system for analysis to detect the size and defects of the board. When the width of the board changes, the computer system adjusts the position of the third camera assembly 4-1 according to the width of the board to maintain the optimal shooting distance between the third camera assembly 4-1 and the left side of the board, ensuring that side images can be acquired and the shooting effect is good.

[0026] Preferably, to achieve image acquisition of the right side of the board, this embodiment further includes the following structure: a fourth camera assembly 4-2 for capturing the other side of the board is connected to the fixed part on one side of the conveyor belt 1-5 via a fourth camera bracket 4-22, with the orientation shown in the image as the reference point for capturing the image of the right side of the board. The fourth camera bracket 4-22 is connected to a fourth light source assembly 4-21 via a second light source bracket 4-23. The fourth light source assembly 4-21 provides supplementary lighting to the side of the board during shooting to cooperate with the camera assembly in acquiring image information.

[0027] After the board is fed into the board image acquisition device by the conveyor belt, the first camera assembly 3, the second camera assembly 2, the third camera assembly 4-1 and the fourth camera assembly 4-2 respectively capture the front side image, the rear side image, the left side image and the right side image of the board (based on the orientation on the figure), and transmit the acquired image information to the computer system for analysis to detect the size and defects of the board.

[0028] Example 3: Based on Example 1 or Example 2, the board image acquisition device is further provided with the following structure: the top of the main frame 1 of the device in the working chamber 1-2 is fixedly connected to the fifth camera component 5 for taking pictures of the top surface of the board through the fifth camera bracket, and the fifth light source component 5-1 for supplementing the top surface of the board with light during shooting is fixedly connected to the fifth camera component 5 by a hanging arm.

[0029] After the board is fed into the board image acquisition device by the conveyor belt, the first camera assembly 3, the second camera assembly 2, the third camera assembly 4-1, the fourth camera assembly 4-2 and the fifth camera assembly 5 respectively capture the front side image, the rear side image, the left side image, the right side image and the top surface image of the board (based on the orientation on the figure), and transmit the acquired image information to the computer system for analysis to detect the size and defects of the board.

[0030] In this embodiment, the conveyor belt 4 mainly consists of a belt body, idlers, a motor, and a fixed frame. The idlers are fixed in the fixed frame, the motor drives the idlers to rotate, and the idlers drive the belt body to move. The conveyor belt is existing technology and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this template.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A board image acquisition device for a board inspection system, characterized in that, The device includes a main frame (1) and a base bracket (1-4). The main frame (1) has a working chamber (1-2) on its upper part. The base bracket (1-4) passes through the lower part of the main frame (1). A conveyor belt (1-5) is fixedly provided on the base bracket (1-4). The working chamber (1-2) is located above the conveyor belt (1-5). The lower part of the working chamber (1-2) is fixedly provided with a first camera assembly (3) for taking pictures of the front side of the board and a second camera assembly (2) for taking pictures of the rear side of the board along the board conveying direction. A first light source assembly for supplementing light to the front side of the board during shooting is fixedly provided next to the first camera assembly (3). A second light source assembly for supplementing light to the rear side of the board during shooting is fixedly provided next to the second camera assembly (2). The first camera assembly (3) and the first light source assembly are connected to the main frame (1) of the device through a first camera bracket. The second camera assembly (2) and the second light source assembly are connected to the main frame (1) of the device through a second camera bracket.

2. The board image acquisition device of the board inspection system as described in claim 1, characterized in that, The working chamber (1-2) is fixedly equipped with a linear module (1-3) and a motor that drives the linear module (1-3). The moving part of the linear module (1-3) can move horizontally along the width direction of the plate and is fixedly connected to a third camera assembly (4-1) for taking pictures of one side of the plate through a third camera bracket (4-12). The third camera bracket (4-12) is connected to the third light source assembly (4-11) through a first light source bracket (4-13).

3. The board image acquisition device of the board inspection system as described in claim 2, characterized in that, A fourth camera assembly (4-2) for taking images of the other side of the plate is connected to a fixed part on one side of the conveyor belt (1-5) via a fourth camera bracket (4-22). The fourth camera bracket (4-22) is connected to the fourth light source assembly (4-21) via a second light source bracket (4-23).

4. The plate image acquisition device of the plate inspection system as described in any one of claims 1-3, characterized in that, The top of the work chamber (1-2) is connected to a fifth camera assembly (5) for taking pictures of the top surface of the board through a fifth camera bracket. Next to the fifth camera assembly (5), a fifth light source assembly (5-1) for supplementing light to the top surface of the board during shooting is fixedly connected by a hanging arm.

5. The plate image acquisition device of the plate inspection system as described in any one of claims 1-3, characterized in that, It also includes an auxiliary frame (6), with the left and right sides of the main frame (1) of the equipment respectively fixedly connected to an auxiliary frame (6). The bottom of the auxiliary frame (6) is provided with a support foot assembly (6-1). The auxiliary frame (6) adopts a square chamber structure and has a chamber installed inside.

6. The board image acquisition device of the board inspection system as described in claim 5, characterized in that, The auxiliary frame (6) is connected to a touch screen hanging box (7) that rotates horizontally along the central axis in the vertical direction, and the touch screen hanging box (7) is equipped with a touch screen (8).

7. The board image acquisition device of the board inspection system as described in claim 4, characterized in that, It also includes an auxiliary frame (6), with the left and right sides of the main frame (1) of the equipment respectively fixedly connected to an auxiliary frame (6). The bottom of the auxiliary frame (6) is provided with a support foot assembly (6-1). The auxiliary frame (6) adopts a square chamber structure and has a chamber installed inside.

8. The plate image acquisition device of the plate inspection system as described in claims 1-3, characterized in that, The device includes a connecting rod, one connecting rod is fixedly installed on the front side of the main frame (1) of the device along the left and right direction, and two first camera brackets are installed on the same connecting rod, and a first camera assembly (3) is installed on each first camera bracket; the other connecting rod is fixedly installed on the rear side of the main frame (1) of the device along the left and right direction, and two second camera brackets are installed on the same connecting rod, and a second camera assembly (2) is installed on each second camera bracket.

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