Prism appearance detection mechanism

Abstract

The utility model relates to a prism appearance detection mechanism in the field of detection mechanisms, which comprises a machine frame, a conveying platform and a visual detection assembly are arranged on the machine frame, a prism detection assembly is further arranged on the machine frame, the prism detection assembly comprises a detection box body, an industrial camera and a prism group, and a visual detection cavity is arranged in the detection box body. The industrial cameras and the prism sets are arranged on the side wall of the detection box body, the number of the prism sets is the same as that of the industrial cameras, the prism sets and the industrial cameras are distributed and symmetrical around the axis of the detection box body, lenses of the industrial cameras are aligned with the prism sets, and a conveying channel is arranged at the end, close to the conveying platform, of the detection box body. The two ends of the conveying channel extend to the side wall of the detection box body and are provided with the channel openings for the products to enter and leave the visual detection cavity, and a single camera can realize multi-angle shooting through the prism group, so that the space is effectively saved, the information collection speed is increased, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection mechanisms, in particular to a prism appearance detection mechanism. Background Art

[0002] Visual inspection is an automated product inspection process that utilizes computer vision technology and artificial intelligence algorithms. Machine vision products, such as CMOS and CCD cameras, convert captured objects into image signals, which are then transmitted to a dedicated image processing system. This system converts these image signals into digitized signals based on information such as pixel distribution, brightness, and color. It then performs various calculations to extract object features, such as area, quantity, location, and length. Finally, based on preset tolerances and other conditions, the system outputs results, such as size, angle, number, pass / fail, presence / absence, etc., enabling automated identification.

[0003] The visual inspection architecture includes the following components: Lighting is a crucial factor affecting the input of machine vision systems, directly impacting the quality of input data and application effectiveness. Commonly used visible light sources include incandescent, fluorescent, mercury, and sodium lamps. Lighting systems can be categorized by illumination method, including backlighting, frontlighting, structured light, and stroboscopic lighting. Cameras can be categorized as standard-resolution digital cameras or analog cameras. Different resolutions, such as line scan CCDs, area array CCDs, and monochrome and color cameras, are selected based on the specific application. Image detection software is used to process and analyze captured images to extract target features and make judgments.

[0004] When performing appearance inspection on capacitors used in electronic products, the camera is usually aimed directly at the surface of the product. To improve the accuracy and quality of the inspection, multiple cameras are used to photograph the product from different angles. However, the existing structural space is limited and too many cameras cannot be installed. The camera lens cannot fully capture the full angle field of view of the product, resulting in blind spots. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a prism appearance detection mechanism, which can effectively solve the technical problem of blind spots when photographing the product surface.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A prism appearance inspection mechanism includes a frame, which is used to be installed on the entire machine body. The frame is provided with a conveying platform and a visual inspection component. The conveying platform is used to transport the product to be inspected. The product enters the visual inspection component through the conveying platform, thereby completing the appearance inspection. The frame is also provided with a prism inspection component, including an inspection box, an industrial camera and a prism group. A visual inspection cavity is provided in the inspection box. The industrial camera and the prism group are arranged on the side wall of the inspection box. There are more than two industrial cameras. The number of prism groups is the same as that of industrial cameras. The prism group and the industrial camera are distributed and symmetrical around the axis of the inspection box. The lens of the industrial camera faces the prism group. A conveying channel is provided at one end of the inspection box close to the conveying platform. The conveying channel is in the same direction as the conveying platform. Both ends of the conveying channel extend to the side walls of the inspection box and are provided with channel openings for products to enter and leave the visual inspection cavity.

[0008] Furthermore, the box body is composed of a circular light source and a cylindrical light cover, the delivery channel is arranged on the bottom surface of the cylindrical light cover, the circular light source is arranged at one end of the cylindrical light cover away from the delivery channel, and the circular light source irradiates toward the delivery channel.

[0009] Furthermore, the industrial camera is arranged on the outside of the detection box through a camera bracket, and a detection window is provided on the side wall of the detection box. The industrial camera can capture images in the visual detection cavity through the detection window.

[0010] Furthermore, the conveying platform includes a support plate, a driving wheel, a driven wheel, a transmission belt and a driving motor. The support plate, the driving wheel, the driven wheel, the transmission belt and the driving motor are each provided with two and symmetrical to each other. The driving wheel and the driven wheel are respectively provided at both ends of the support plate. The transmission belt is provided on the side walls of the support plate, the driving wheel and the driven wheel. The driving motor is connected to the driving wheel, and the support plate is connected to the frame. The surfaces of the two transmission belts are in contact, and the output shafts of the two driving motors rotate in opposite directions, so that the product can be clamped by the two transmission belts for movement.

[0011] Furthermore, the visual inspection component includes an electric lifting device and an industrial camera. The electric lifting device is installed on the frame, and the industrial camera is set on the electric lifting device. The electric lifting device can drive the industrial camera close to or away from the conveying platform.

[0012] Furthermore, the visual inspection component also includes a fill light, the light of the fill light is irradiated on the conveying platform, and a window hole is provided in the middle of the fill light, and the industrial camera can photograph the products on the conveying platform through the window hole.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: a prism group is provided in the visual inspection chamber, and the camera lens is aligned with and shoots the image mapped by the prism group. When the product enters the middle of the visual inspection chamber, the prism group can map images of the product at multiple angles. A single camera can achieve multi-angle shooting through the prism group, effectively saving space, and increasing the speed of information collection and improving the efficiency of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is an exploded view of the structure of the prism detection component in the utility model;

[0016] Figure 3 This is a bottom view of the prism detection assembly in the present invention;

[0017] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0018] Figure 5 It is a three-dimensional schematic diagram of the conveying platform in the utility model;

[0019] Figure 6 It is a three-dimensional schematic diagram of the visual detection component of the feeding area in the present invention;

[0020] Figure 7 It is a three-dimensional schematic diagram of the visual detection component of the discharge area of the utility model;

[0021] Numbers in the figure: 1-frame, 2-conveyor platform, 201-support plate, 202-driving wheel, 203-driven wheel, 204-transmission belt, 205-drive motor, 3-visual inspection component, 301-electric lifting device, 302-fill light, 4-prism inspection component, 401-camera bracket, 402-industrial camera, 403-prism group, 404-channel opening, 405-window hole, 406-circular light source, 407-cylindrical light dome, 5-product, 6-feeding area, 7-discharging area. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following combination Figure 1-Figure 7A prism appearance detection mechanism of the utility model is described in detail:

[0024] A prism appearance inspection mechanism includes a frame 1, which is used to be installed on the entire machine body. A conveying platform 2 and a visual inspection component 3 are provided on the frame 1. The two ends of the conveying platform 2 are respectively a discharge area 7 and a feed area 6. The conveying platform 2 is used to transport the product 5 to be inspected. The product 5 enters the visual inspection component 3 through the conveying platform 2, thereby completing the appearance inspection. The conveying platform 2 includes a support plate 201, a driving wheel 202, a driven wheel 203, a transmission belt 204 and a drive motor 205. The support plate 201, the driving wheel 202, the driven wheel 203, the transmission belt 204 and the drive motor 205 There are two driving wheels 203, transmission belts 204 and drive motors 205, which are symmetrical to each other. The driving wheel 202 and the driven wheel 203 are respectively arranged at the two ends of the support plate 201. The transmission belt 204 is arranged on the side walls of the support plate 201, the driving wheel 202 and the driven wheel 203. The drive motor 205 is connected to the driving wheel 202, and the support plate 201 is connected to the frame 1. The surfaces of the two transmission belts 204 are in contact, and the output shafts of the two drive motors 205 rotate in opposite directions, so that the product 5 can be clamped by the two transmission belts 204 for movement.

[0025] The frame 1 is also provided with a prism detection component 4, which includes a detection box, an industrial camera 402 and a prism group 403. A visual detection cavity is provided in the detection box. The industrial camera 402 and the prism group 403 are arranged on the side wall of the detection box. There are more than two industrial cameras 402. The number of prism groups 403 is the same as that of industrial cameras 402. The prism group 403 and the industrial camera 402 are distributed and symmetrically around the axis of the detection box. The lens of the industrial camera 402 is aligned with the prism group 403. A conveying channel is provided at one end of the detection box close to the conveying platform 2. The conveying channel is in the same direction as the conveying platform 2. Both ends of the conveying channel extend to the side wall of the detection box and are provided with channel openings 404 for the product 5 to enter and leave the visual detection cavity. The box is composed of a circular light source 406 and a cylindrical light cover 407. The conveying channel is arranged on the bottom surface of the cylindrical light cover 407. The circular light source 406 is arranged at the end of the cylindrical light cover 407 away from the conveying channel. The circular light source 406 shines toward the conveying channel to improve the clarity of the image, thereby improving the quality of detection. The industrial camera 402 is arranged on the outside of the detection box through the camera bracket 401. The side wall of the detection box is provided with a detection window. The industrial camera 402 can capture the image in the visual detection cavity through the detection window. The position of the industrial camera 402 can be adjusted through the camera bracket 401 to ensure that the industrial camera 402 can capture the picture on the prism group 403.

[0026] The visual inspection component 3 includes an electric lifting device 301 and an industrial camera 402. The electric lifting device 301 is installed on the frame 1, and the industrial camera 402 is arranged on the electric lifting device 301. The electric lifting device 301 can drive the industrial camera 402 to approach or move away from the conveying platform 2. There are two groups of visual inspection components 3. The two groups of visual inspection components 3 are respectively arranged in the feeding area 6 and the discharging area 7 of the conveying platform 2. The visual inspection component 3 near one end of the discharging area 7 of the conveying platform 2 is provided with a fill light 302. The light of the fill light 302 is irradiated on the conveying platform 2. A window hole 405 is provided in the middle of the fill light 302. The industrial camera 402 can shoot the product 5 on the conveying platform 2 through the window hole 405.

[0027] A prism appearance inspection mechanism of this embodiment is provided with a prism group 403 in a visual inspection chamber. The lens of the camera is aimed at and shoots the image mapped by the prism group 403. When the product 5 enters the middle of the visual inspection chamber, the prism group 403 can map images of the product 5 at multiple angles. A single camera can achieve multi-angle shooting through the prism group 403, which effectively saves space, increases the speed of information collection, and improves the efficiency of inspection.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A prism appearance inspection mechanism, comprising a frame for mounting on a machine body, a conveying platform and a visual inspection component disposed on the frame, the conveying platform for transporting inspected products, the products passing through the conveying platform into the visual inspection component, thereby completing appearance inspection, characterized in that: The frame is also provided with a prism detection component, including a detection box, an industrial camera and a prism group. A visual detection cavity is provided in the detection box. The industrial camera and the prism group are arranged on the side wall of the detection box. There are more than two industrial cameras. The number of prism groups is the same as that of industrial cameras. The prism group and the industrial camera are distributed and symmetrical around the axis of the detection box. The lens of the industrial camera faces the prism group. A conveying channel is provided at one end of the detection box close to the conveying platform. The conveying channel is in the same direction as the conveying platform. Both ends of the conveying channel extend to the side wall of the detection box and are provided with channel openings for products to enter and leave the visual detection cavity.

2. The prism appearance detection mechanism according to claim 1, characterized in that: The box body is composed of a circular light source and a cylindrical light cover. The delivery channel is arranged on the bottom surface of the cylindrical light cover. The circular light source is arranged at one end of the cylindrical light cover away from the delivery channel. The circular light source irradiates toward the delivery channel.

3. The prism appearance detection mechanism according to claim 1, characterized in that: The industrial camera is arranged on the outside of the detection box through a camera bracket. The side wall of the detection box is provided with a detection window. The industrial camera can capture images in the visual detection cavity through the detection window.

4. A prism appearance inspection mechanism according to any one of claims 1 to 3, characterized in that: The conveying platform includes a support plate, a driving wheel, a driven wheel, a transmission belt and a driving motor. The support plate, the driving wheel, the driven wheel, the transmission belt and the driving motor are each provided with two and symmetrical to each other. The driving wheel and the driven wheel are respectively arranged at both ends of the support plate. The transmission belt is arranged on the side walls of the support plate, the driving wheel and the driven wheel. The driving motor is connected to the driving wheel, and the support plate is connected to the frame. The surfaces of the two transmission belts are in contact, and the output shafts of the two driving motors rotate in opposite directions, so that the product can be clamped by the two transmission belts for movement.

5. A prism appearance inspection mechanism according to any one of claims 1 to 3, characterized in that: The visual inspection component includes an electric lifting device and an industrial camera. The electric lifting device is installed on the frame, and the industrial camera is set on the electric lifting device. The electric lifting device can drive the industrial camera to approach or move away from the conveying platform.

6. The prism appearance detection mechanism according to claim 5, characterized in that: The visual inspection component also includes a fill light, the light of the fill light is irradiated on the conveying platform, and a window hole is provided in the middle of the fill light, and the industrial camera can shoot the products on the conveying platform through the window hole.

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