Novel automatic optical detector image acquisition and control device

Abstract

The utility model provides a novel image acquisition and control device of an automatic optical detector, which relates to the technical field of optical detection and comprises a photoelectric conversion photographing system, a lighting system, a control system and a main frame. According to the device, the high-quality high-end CMOS camera is adopted, the device has higher imaging resolution and better image quality, the detection rate of defective defects is greatly improved, a camera adjusting mechanism is flexible, the position of the camera is convenient to adjust, a detected object is shot from different angles by designing the top main camera and the four side view cameras, and the detection accuracy of the detected object is improved. A light source is composed of red, green, blue, white and ultraviolet lamps, a light source control circuit board is arranged, the light source can be switched according to actual application, meanwhile, modular design is adopted on the whole, large-scale batch production is facilitated, the production efficiency is high, the production cost is greatly reduced, and the delivery time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a novel image acquisition and control device for an automatic optical detection machine. Background Art

[0002] The hardware system of AOI equipment includes four parts: working platform, imaging system, image processing system and electrical system. The image acquisition system of AOI mainly includes three parts: photoelectric conversion photography system, lighting system and control system. The photoelectric conversion photography system refers to the photodiode device and the imaging system matched with it, which is the eye to obtain the image. The photoelectric converter can be divided into CCD (charge coupling diode) and CMOS (complementary metal oxide semiconductor conductor). The lighting system generally uses coaxial light source, which is basically red, green and blue light source. The control system is generally controlled by computer program.

[0003] Different customers have different application requirements. Equipment manufacturers need to customize different CMOS cameras, different lenses, different light source systems and different control programs for different customers. The result of customization is that a lot of manpower needs to be invested in product development, the manufacturing cost is high, the delivery time is long and the efficiency is low, which is not conducive to mass production. Utility Model Content

[0004] The utility model mainly provides a new automatic optical inspection machine image acquisition and control device which can effectively reduce manufacturing costs, shorten long delivery time and low efficiency, and is conducive to batch production.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a new type of automatic optical inspection machine image acquisition and control device, including a photoelectric conversion photography system, a lighting system, a control system and a main frame, wherein the photoelectric conversion photography system, the lighting system and the control system are arranged on the main frame, the photoelectric conversion photography system is composed of a control system, a top camera system and a side camera system, the control system includes a camera control system, and the lighting system is composed of a top light source, a coaxial circular light source, an ultraviolet emitting light source, an ultraviolet light source driver, a light source protection cover, a light source control board and a protective shell.

[0006] Preferably, the top camera system is composed of a camera and lens module and a mounting bracket. The top camera system is fixed to the outer surface of the main frame by bolts. The top camera system adopts a high-quality high-end CMOS camera with higher imaging resolution and better image quality, which greatly improves the detection rate of bad defects.

[0007] Preferably, the side camera system is composed of four side cameras and lens modules, four reflectors and a bracket module; the side camera system is fixed to the main frame by bolts, and the reflector is fixed to the inner surface wall of the main frame by bolts. Since the side camera system is composed of four side cameras and corresponding lens modules, it can capture images from different directions, which greatly improves the image capture effect; and after reflecting the light source through the reflector, the surface light intensity of the product to be inspected can be greatly increased, thereby improving the image capture effect; the side camera system is installed near the middle of the main frame, and the reflector is installed near the middle inside the main frame by bolts.

[0008] Preferably, the camera control system is composed of a USB HUB and a fixed bracket, and the fixed bracket in the camera control system is connected to the outer surface of the main frame near the middle position. The camera control system is composed of a USB HUB and a fixed bracket, so that the camera is connected to the HUB through a data cable, and the HUB is connected to the image data acquisition card of the computer host through another data cable, thereby completing data transmission.

[0009] Preferably, the top light source is composed of a PCBA board of an LED light source, a fixing bracket and a diffusion plate. The top light source is fixed to the main frame by bolts. The top light source has a high light intensity and is mainly used to illuminate the object to be detected and provide sufficient lighting conditions for it.

[0010] Preferably, the coaxial annular light source is composed of multiple LED light sources and a PCBA board. The coaxial annular light source is fixed on the main frame by bolts. The coaxial annular light source mainly consists of red, green, blue and white LED light sources, and can provide different lighting effects according to different needs.

[0011] Preferably, the ultraviolet emitting light source and the ultraviolet light source driver are connected by a cable, the coaxial circular light source and the ultraviolet emitting light source are both mounted on the main frame by bolts, the light source protection cover is mounted on the main frame by bolts, the light source control board and the protective shell are mounted on external equipment, the ultraviolet light source driver is mainly used to control the ultraviolet emitting light source to emit the ultraviolet light source after startup, which can further meet higher user needs, and by installing the light source protection cover on the outside of the coaxial circular light source and the ultraviolet emitting light source, the internal light source can be effectively protected and the heat dissipation of the light source can be prevented, and it has a good light gathering effect, the light source control board is mainly used to switch different light sources, and is arranged inside the protective shell, so it is not easily affected by impact.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, a high-quality high-end CMOS camera is used in the device, which has higher imaging resolution and better image quality, greatly improves the detection rate of bad defects, and a flexible camera adjustment mechanism facilitates the position adjustment of the camera. By designing a top main camera and four side-view cameras, the object to be tested can be photographed from different angles to improve the defect detection rate. 3D images can also be generated. The light source consists of red, green, blue, white and ultraviolet lights, and is equipped with a light source control circuit board. The light source can be switched according to actual applications. At the same time, the overall modular design is adopted, which is convenient for large-scale batch production, has high production efficiency, and greatly reduces production costs and delivery time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a novel automatic optical inspection machine image acquisition and control device is proposed for the utility model;

[0015] Figure 2 Another perspective view of a novel automatic optical inspection machine image acquisition and control device proposed by the utility model;

[0016] Figure 3 A schematic diagram of the top light source structure of a novel automatic optical inspection machine image acquisition and control device is proposed for the utility model;

[0017] Figure 4 The utility model proposes a schematic diagram of the structure of a coaxial annular light source of a novel automatic optical inspection machine image acquisition and control device;

[0018] Figure 5 The utility model proposes a schematic diagram of the structure of a light source protection cover of a novel automatic optical inspection machine image acquisition and control device;

[0019] Figure 6 A schematic diagram of the control system structure of a novel automatic optical inspection machine image acquisition and control device is proposed for the utility model;

[0020] Figure 7 A schematic diagram of the top camera system structure of a novel automatic optical inspection machine image acquisition and control device is provided for the utility model;

[0021] Figure 8 The utility model proposes a schematic diagram of the structure of a side camera system of a novel automatic optical inspection machine image acquisition and control device;

[0022] Fig. 9 A schematic diagram of the protective shell structure of a novel automatic optical inspection machine image acquisition and control device is proposed for the utility model;

[0023] Fig.10The utility model proposes a schematic diagram of the structure of a light source control board of a novel automatic optical inspection machine image acquisition and control device;

[0024] Fig.11 A schematic diagram of the reflector structure of a novel automatic optical inspection machine image acquisition and control device is provided for the utility model;

[0025] Fig.12 The utility model proposes a schematic diagram of the structure of a UV light source driver of a novel automatic optical inspection machine image acquisition and control device;

[0026] Fig.13 The utility model provides a schematic diagram of the structure of an ultraviolet emission light source of a novel automatic optical inspection machine image acquisition and control device.

[0027] Legend: 1. Main frame; 2. Top light source; 3. Coaxial circular light source; 4. Light source protection cover; 5. Control system; 6. Top camera system; 7. Side camera system; 8. Protective shell; 9. Light source control board; 10. Reflector; 11. UV light source driver; 12. UV emitting light source. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0030] See also Figure 1-Figure 13 The utility model provides a technical solution: a new type of automatic optical inspection machine image acquisition and control device, including a photoelectric conversion photography system, a lighting system, a control system and a main frame 1, the photoelectric conversion photography system, the lighting system and the control system are arranged on the main frame 1, the photoelectric conversion photography system is composed of a control system 5, a top camera system 6 and a side camera system 7, the control system includes a camera control system 5, the lighting system is composed of a top light source 2, a coaxial circular light source 3, an ultraviolet emitting light source 12, an ultraviolet light source driver 11, a light source protection cover 4, a light source control board 9 and a protective shell 8.

[0031] like Figure 1 , Figure 2 and Figure 7As shown, the top camera system 6 is composed of a camera and lens module and a mounting bracket. The top camera system 6 is fixed to the outer surface of the main frame 1 by bolts. The top camera system 6 adopts a high-quality high-end CMOS camera with higher imaging resolution and better image quality, which greatly improves the detection rate of bad defects.

[0032] like Figure 1 , Figure 2 , Figure 8 and Fig.11 As shown, the side camera system 7 is composed of four side cameras and lens modules, four reflectors 10 and a bracket module. The side camera system 7 is fixed to the main frame 1 by bolts, and the reflector 10 is fixed to the inner surface wall of the main frame 1 by bolts. Since the side camera system 7 is composed of four side cameras and corresponding lens modules, it can collect images from different directions, which greatly improves the image collection effect. After the light source is reflected by the reflector 10, the surface light intensity of the product to be inspected can be greatly increased, thereby improving the image collection effect. The side camera system 7 is installed near the middle of the main frame 1, and the reflector 10 is installed near the middle inside the main frame 1 by bolts.

[0033] like Figure 1 , Figure 2 and Figure 6 As shown, the camera control system 5 is composed of a USB HUB and a fixed bracket. The fixed bracket in the camera control system 5 is connected to the outer surface of the main frame 1 near the middle. The camera control system 5 is composed of a USB HUB and a fixed bracket, so that the camera is connected to the HUB through a data cable, and the HUB is connected to the image data acquisition card of the computer host through another data cable, thereby completing data transmission.

[0034] like Figure 1-Figure 3 As shown, the top light source 2 is composed of a PCBA board of an LED light source, a fixing bracket and a diffusion plate. The top light source 2 is fixed to the main frame 1 by bolts. The top light source 2 has a high light intensity and is mainly used to illuminate the object to be detected and provide sufficient lighting conditions for it.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the coaxial annular light source 3 is composed of multiple LED light sources and a PCBA board. The coaxial annular light source 3 is fixed on the main frame 1 by bolts. The coaxial annular light source 3 mainly consists of red, green, blue and white LED light sources, and can provide different lighting effects according to different needs.

[0036] like Figure 1-Figure 5 , Fig. 9 , Fig.10 , Fig.12 and Fig.13 As shown, the ultraviolet emitting light source 12 and the ultraviolet light source driver 11 are connected by cables, the coaxial annular light source 3 and the ultraviolet emitting light source 12 are both mounted on the main frame 1 by bolts, the light source protection cover 4 is mounted on the main frame 1 by bolts, the light source control board 9 and the protective shell 8 are mounted on external equipment, the ultraviolet light source driver 11 is mainly used to control the ultraviolet emitting light source 12 to emit ultraviolet light after startup, which can further meet higher user needs, and by installing the light source protection cover 4 outside the coaxial annular light source 3 and the ultraviolet emitting light source 12, the internal light source can be effectively protected and the heat dissipation of the light source can be prevented, and it has a good light gathering effect, the light source control board 9 is mainly used to switch different light sources, and is arranged inside the protective shell 8, so it is not easily affected by impact.

[0037] The use method and working principle of this device: This device is an optical detection device with an efficient image acquisition system suitable for AOI. When in use, the focal length and field of view can be flexibly adjusted through the four groups of side cameras in the top camera system 6 and the side camera system 7, and different lenses can be selected according to user needs. At the same time, the design of the coaxial circular light source 3 provides four different light sources of red, green, blue and white, and cooperates with the ultraviolet light source provided by the ultraviolet emission light source 12 to meet most image acquisition needs, and when in use, the light source brightness can be flexibly controlled through the light source control board 9. On this basis, the main camera in the top camera system 6 and the four side cameras in the side camera system 7 can shoot the object under test from different angles, thereby improving the defect detection rate. At the same time, the auxiliary light source of the main camera is red light. Red, green, blue and white are designed at a special angle and are coaxially distributed, which can better play the wavelength characteristics of different light sources and assist the camera to generate clear images. The four ultraviolet light sources are at a special angle and are mainly used for defect detection of three-proof glue coating. The above detection method is mainly based on the actual use needs of the user.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A novel automatic optical inspection machine image acquisition and control device, comprising a photoelectric conversion photography system, a lighting system, a control system and a main frame (1), characterized in that: The photoelectric conversion photography system, the lighting system and the control system are arranged on the main frame (1); the photoelectric conversion photography system is composed of a control system (5), a top camera system (6) and a side camera system (7); the control system includes a camera control system (5); and the lighting system is composed of a top light source (2), a coaxial annular light source (3), an ultraviolet emitting light source (12), an ultraviolet light source driver (11), a light source protection cover (4), a light source control board (9) and a protective shell (8).

2. The new automatic optical inspection machine image acquisition and control device according to claim 1 is characterized in that: The top camera system (6) is composed of a camera and lens module and a mounting bracket, and the top camera system (6) is fixed to the outer surface of the main frame (1) by bolts.

3. The new automatic optical inspection machine image acquisition and control device according to claim 2 is characterized in that: The side camera system (7) is composed of four side cameras and a lens module, four reflectors (10) and a bracket module. The side camera system (7) is fixed to the main frame (1) by bolts, and the reflector (10) is fixed to the inner wall of the main frame (1) by bolts.

4. The new automatic optical inspection machine image acquisition and control device according to claim 3 is characterized by: The camera control system (5) is composed of a USB HUB and a fixing bracket. The fixing bracket in the camera control system (5) is connected to the outer surface of the main frame (1) at a position close to the middle.

5. The new automatic optical inspection machine image acquisition and control device according to claim 4 is characterized in that: The top light source (2) is composed of a PCBA board of an LED light source, a fixing bracket and a diffusion plate, and the top light source (2) is fixed to the main frame (1) by means of bolts.

6. The new automatic optical inspection machine image acquisition and control device according to claim 5 is characterized by: The coaxial annular light source (3) is composed of a plurality of LED light sources and a PCBA board, and the coaxial annular light source (3) is fixedly mounted on the main frame (1) by means of bolts.

7. The new automatic optical inspection machine image acquisition and control device according to claim 6 is characterized by: The ultraviolet emitting light source (12) and the ultraviolet light source driver (11) are connected via a cable, the coaxial annular light source (3) and the ultraviolet emitting light source (12) are both mounted on the main frame (1) via bolts, the light source protection cover (4) is mounted on the main frame (1) via bolts, and the light source control panel (9) and the protection shell (8) are mounted on external equipment.

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