Automatic visual inspection equipment with turn-over structure

Abstract

The utility model discloses automatic visual inspection equipment with a turn-over structure, and relates to the technical field of automatic visual inspection, the automatic visual inspection equipment comprises a platform and a limit turn-over assembly, the left and right sides of the platform are symmetrically and vertically provided with device frames, and the center of the top of the platform is provided with a transmission mechanism; the limiting overturning assemblies are installed on the left side and the right side of the conveying mechanism. According to the automatic visual inspection equipment with the turn-over structure, the limiting turn-over assemblies are symmetrically arranged on the left side and the right side of the conveying mechanism, so that on one hand, an image shooting unit can be assisted to limit a material structure, and materials are prevented from shaking and shifting during detection; on the other hand, the material needing visual inspection can be rotated and turned over by utilizing the activity of the structure, so that automatic and flexible inspection is realized, and the illumination assemblies connected to the left and right sides of the image shooting unit can ensure the visual inspection accuracy of the top surface of the material to the maximum extent by utilizing the structural adjustability; and shadow errors in shooting detection are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automated visual inspection, in particular to automated visual inspection equipment with a flip structure. Background Art

[0002] Visual inspection is to use machines to replace human eyes to make measurements and judgments. Visual inspection refers to the process of converting the captured target into image signals through machine vision products (i.e. image capture devices, divided into CMOS and CCD), transmitting them to a dedicated image processing system, and converting them into digital signals based on pixel distribution, brightness, color and other information; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the equipment action on site based on the results of the judgment. It is a valuable mechanism for production, assembly or packaging. It has immeasurable value in detecting defects and preventing defective products from being delivered to consumers.

[0003] Conventional automated visual inspection equipment can only capture images of the top surface of materials on the conveyor mechanism for inspection, but cannot detect the structure of the bottom surface. Manual operation is required to achieve this, which requires additional human assistance for the equipment and makes it difficult to meet the automated inspection process.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an automated visual inspection device with a flip structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an automated visual inspection device with a flip structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automated visual inspection device with a flipping structure, comprising a platform and a limit flipping assembly, wherein device frames are symmetrically and vertically installed on the left and right sides of the platform, and a transmission mechanism is installed in the top center of the platform, the limit flipping assembly is installed on the left and right sides of the transmission mechanism, and a lifting assembly is installed on the top of the transmission mechanism, the limit flipping assembly comprises a hydraulic push rod, a stabilizing pile, a support frame, a pneumatic push rod, an electric rotary shaft and a limit pad, the hydraulic push rod is connected to a stabilizing pile on the side close to the transmission mechanism, and a support frame is installed on the top of the hydraulic push rod, and a pneumatic push rod is horizontally installed in the middle section of the support frame, and an electric rotary shaft is installed at the power output end of the pneumatic push rod, and a limit pad is installed on the surface of the electric rotary shaft away from the pneumatic push rod.

[0007] Furthermore, an image capturing unit is connected to the middle of the lifting assembly, and lighting units are symmetrically installed on the left and right sides of the image capturing unit.

[0008] Further, a "U" - shaped structure is fixedly connected between the platform and the device frame, and the left and right sides of the lifting assembly are respectively fixed to one side of the left and right device frames close to the vertical central axis of the platform.

[0009] Further, the pneumatic push rod, the electric rotary shaft, and the limit backing plate are all on the same horizontal axis, and a " " - shaped structure is connected between the hydraulic push rod, the support frame, and the pneumatic push rod.

[0010] Further, the lifting assembly includes an image acquisition and analysis unit, a lifting frame, and a guiding track. Lifting frames are symmetrically installed on the left and right sides of the image acquisition and analysis unit, and a guiding track is connected to the side of the lifting frame far from the image acquisition and analysis unit.

[0011] Further, the image acquisition and analysis unit, the lifting frame, and the guiding track are connected in an "H" - shaped structure, and the lifting frame and the guiding track are slidably connected to each other.

[0012] Further, the lighting assembly includes a fixed frame, a double - section shaft frame, a connecting frame, and a lighting lamp. A double - section shaft frame is connected to one side of the fixed frame, a connecting frame is connected to the end of the double - section shaft frame far from the fixed frame, and a lighting lamp is installed on the side of the connecting frame far from the double - section shaft frame.

[0013] Further, the lighting assembly is fixedly installed on the side of the image capturing unit through the fixed frame, and the image capturing unit is vertically and fixedly connected to the bottom of the image acquisition and analysis unit.

[0014] The present utility model provides an automated vision inspection device with a turning - over structure, having the following

[0015] Beneficial effects:

[0016] 1. In the present utility model, limit turning - over components are symmetrically installed on the left and right sides of the transmission mechanism. Under the operation of the pneumatic push rod, the limit backing plate at its output end can be pushed towards the side surface of the material in the horizontal direction, so as to fixedly clamp the material on both the left and right sides. Furthermore, to the greatest extent, when the image capturing unit takes pictures and conducts vision inspection, the stability of the material state is ensured, the position shaking is avoided, and the accuracy of capturing the top - surface structure of the material is reduced. In addition, through the telescopic adjustment of the hydraulic push rod in the vertical direction and the axial rotation of the electric rotary shaft in the horizontal direction, the clamped material can be horizontally axially turned over, so as to turn over the material, facilitating the rapid and stable automatic inspection of the bottom - surface of the material. By using the operation of the above - mentioned structure, both the flexibility of the operation of the entire device structure and the automation of the device structure are ensured, thus ensuring the automation during the operation of the device.

[0017] 2. The utility model, through the lifting component connected to the image capture unit, through the operation of the lifting frame, enables the image capture unit connected to the image acquisition and analysis unit to be lifted and lowered in the vertical direction along the surface of the guide track, thereby effectively adjusting the vertical relative distance between the image capture unit and the material, so as to assist the image capture unit in focusing and shooting. By installing lighting components on the left and right sides of the image capture unit, the double-end structure rotation adjustability provided by the double-section shaft frame can make different rotation adjustments to the lighting components to a certain extent, so as to utilize the lighting lamp to illuminate the top surface of the material to the greatest extent from different directions. By utilizing the operation of the above structure, it can be further ensured that the image capture unit can accurately capture the top surface structure of the material, so as to facilitate the image acquisition and analysis unit to compare, analyze and detect the captured image information. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the side view structure of a support body of an automated visual inspection device with a flip structure according to the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a limit flip component of an automated visual inspection device with a flip structure according to the utility model;

[0020] Figure 3 This is a schematic diagram of the lighting assembly structure of an automated visual inspection device with a flip structure according to the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of an electric rotary shaft and a limiting pad of an automated visual inspection device with a flip structure according to the utility model.

[0022] In the figure: 1. platform; 2. device frame; 3. transmission mechanism; 4. limit flip assembly; 401. hydraulic push rod; 402. stabilizing pile; 403. support frame; 404. pneumatic push rod; 405. electric rotary shaft; 406. limit pad; 5. lifting assembly; 501. image acquisition and analysis unit; 502. lifting frame; 503. guide rail; 6. image acquisition unit; 7. lighting assembly; 701. fixing frame; 702. double-section shaft frame; 703. connecting frame; 704. lighting lamp. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figures 1 to 4As shown in the figure, an automated vision inspection device with a turning structure includes a floor 1 and a limit turning assembly 4. On the left and right sides of the floor 1, device frames 2 are symmetrically and vertically installed. In the center of the top of the floor 1, a transmission mechanism 3 is installed. The limit turning assembly 4 is installed on the left and right sides of the transmission mechanism 3. On the top of the transmission mechanism 3, a lifting assembly 5 is erected. The limit turning assembly 4 includes a hydraulic push rod 401, a stabilizing pile 402, a support frame 403, a pneumatic push rod 404, an electric rotating shaft 405, and a limit backing plate 406. On the side of the hydraulic push rod 401 close to the transmission mechanism 3, a stabilizing pile 402 is connected. On the top of the hydraulic push rod 401, a support frame 403 is installed. In the middle section of the support frame 403, a pneumatic push rod 404 is horizontally installed. On the power output end of the pneumatic push rod 404, an electric rotating shaft 405 is installed. On the surface of the electric rotating shaft 405 away from the pneumatic push rod 404, a limit backing plate 406 is installed. The pneumatic push rod 404, the electric rotating shaft 405, and the limit backing plate 406 are all on the same horizontal axis. The hydraulic push rod 401, the support frame 403, and the pneumatic push rod 404 are connected in a "7" - shaped structure. In the middle of the lifting assembly 5, an image acquisition unit 6 is connected. On the left and right sides of the image acquisition unit 6, lighting assemblies 7 are symmetrically installed. The floor 1 and the device frames 2 are fixedly connected in a "凵" - shaped structure. The left and right sides of the lifting assembly 5 are respectively fixed to the sides of the left and right device frames 2 close to the vertical central axis of the floor 1. By operating the pneumatic push rod 404, the limit backing plate 406 at its output end can be pushed horizontally towards the side surface of the material, so as to fixedly clamp the material on both the left and right sides. Thus, to the greatest extent, it can ensure the stability of the material state when the image acquisition unit 6 takes pictures and conducts vision inspection, avoid position shaking, and reduce the influence on the accuracy of capturing the top surface structure of the material. In addition, through the telescopic adjustment of the hydraulic push rod 401 in the vertical direction and the axial rotation of the electric rotating shaft 405 in the horizontal direction, the clamped material can be horizontally axially flipped, so as to realize turning the material over.

[0025] The lifting assembly 5 includes an image acquisition and analysis unit 501, a lifting frame 502 and a guide rail 503. The lifting frames 502 are symmetrically installed on the left and right sides of the image acquisition and analysis unit 501, and the lifting frame 502 is connected to the guide rail 503 on the side away from the image acquisition and analysis unit 501. The image acquisition and analysis unit 501, the lifting frame 502 and the guide rail 503 are connected to each other in an "H"-shaped structure, and the lifting frame 502 and the guide rail 503 are slidably connected to each other. The lighting assembly 7 includes a fixed frame 701, a double-section shaft frame 702, a connecting frame 703 and a lighting lamp 704. One side of the fixed frame 701 is connected to the double-section shaft frame 702, and the end of the double-section shaft frame 702 away from the fixed frame 701 is connected to the connecting frame 703, and the connecting frame 703 is installed away from the side of the double-section shaft frame 702. There is a lighting lamp 704, and the lighting component 7 is fixedly installed on the side of the image capture unit 6 through a fixing frame 701. The image capture unit 6 is vertically fixedly connected to the bottom of the image acquisition and analysis unit 501. Through the lifting component 5 connected to the image capture unit 6 and the operation of the lifting frame 502, the image capture unit 6 connected to the image acquisition and analysis unit 501 can be lifted and lowered in the vertical direction along the surface of the guide track 503, so that the vertical relative distance between the image capture unit 6 and the material can be effectively adjusted to assist the image capture unit 6 in focusing and shooting. By installing the lighting components 7 on the left and right sides of the image capture unit 6, the double-end structure rotation adjustability provided by the double-section axis frame 702 can make different rotation adjustments of the lighting component 7 possible to a certain extent.

[0026] In summary, if Figures 1 to 4 As shown, when the automatic visual inspection equipment with a flip structure is used, the material processed in the upstream equipment is first transported under the operation of the transmission mechanism 3 in the center of the platform 1 until it is transported to the bottom of the image capture unit 6 and the transportation is stopped. Then, under the rotation adjustment of the double-section shaft frame 702 on one side of the fixed frame 701, the lighting lamp 704 on one side of the connecting frame 703 is aligned with the top surface of the material to facilitate subsequent appropriate light illumination;

[0027] At this time, the limit flipping components 4 on the left and right sides of the transmission mechanism 3 start to work together, and the pneumatic push rod 404 in the support frame 403 starts to work, and through the structural extension in the horizontal direction, the electric rotary shaft 405 and the limit pad 406 at its output end are pushed to the side of the material, thereby clamping the material on the left and right and forming a structural positioning;

[0028] Then the lifting assembly 5 installed in the middle of the left and right device frames 2 will drive the image capture unit 6 and the lighting assembly 7 at the bottom thereof to operate and adjust. Under the operation of the lifting frame 502, the image acquisition and analysis unit 501 and the image capture unit 6 at the bottom thereof will slide and rise in the vertical direction along the surface of the guide track 503, thereby adjusting the image capture unit 6 to an appropriate structural height and starting visual inspection. The opening time of the lighting lamp 704 will match the exposure time of the image capture unit 6. After the image capture unit 6 is exposed, scanning and outputting of a frame of image will begin. The image acquisition and analysis unit 501 receives the analog video signal and digitizes it through A / D, or directly receives the digital video data digitized by the image capture unit 6. The image acquisition and analysis unit 501 stores the digital image in the memory of the processor or computer. The processor processes, analyzes and identifies the image to obtain the measurement result or logic control value.

[0029] When visual inspection of the bottom surface of the material is required, the material clamped and limited by the pneumatic push rod 404 and the limit pad 406 will be lifted vertically by the operation of the hydraulic push rod 401. At this time, the electric rotary shaft 405 will operate at the same time to rotate the material axially in the horizontal direction to achieve structural flipping of the material, so as to perform visual inspection again.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An automated visual inspection device with a flip structure, comprising a platform (1) and a limit flip assembly (4), characterized in that: On the left and right sides of the platform (1), device racks (2) are symmetrically and vertically installed, and a transmission mechanism (3) is installed at the center of the top of the platform (1). The limit flipping assembly (4) is installed on the left and right sides of the transmission mechanism (3), and a lifting assembly (5) is erected on the top of the transmission mechanism (3). The limit flipping assembly (4) includes a hydraulic push rod (401), a stabilizing pile (402), a support frame (403), a pneumatic push rod (404), an electric rotary shaft (405), and a limit backing plate (406). On the side of the hydraulic push rod (401) close to the transmission mechanism (3), a stabilizing pile (402) is connected. On the top of the hydraulic push rod (401), a support frame (403) is installed. Horizontally in the middle of the support frame (403), a pneumatic push rod (404) is installed. At the power output end of the pneumatic push rod (404), an electric rotary shaft (405) is installed. On the surface of the electric rotary shaft (405) away from the pneumatic push rod (404), a limit backing plate (406) is installed.

2. The automated visual inspection device with a flip structure according to claim 1, characterized in that: In the middle of the lifting assembly (5), an image acquisition unit (6) is connected, and lighting assemblies (7) are symmetrically installed on the left and right sides of the image acquisition unit (6).

3. The automated visual inspection device with a flip structure according to claim 1, characterized in that: Between the platform (1) and the device rack (2), a "U" - shaped structure is fixedly connected, and the left and right sides of the lifting assembly (5) are respectively fixed to the sides of the left and right device racks (2) close to the vertical central axis of the platform (1).

4. The automated visual inspection device with a flip structure according to claim 1, characterized in that: The pneumatic push rod (404), the electric rotary shaft (405), and the limit backing plate (406) are all on the same horizontal axis, and a "7" - shaped structure is formed by connecting the hydraulic push rod (401), the support frame (403), and the pneumatic push rod (404).

5. The automated visual inspection device with a flip structure according to claim 1, characterized in that: The lifting assembly (5) includes an image acquisition and analysis unit (501), a lifting frame (502), and a guiding track (503). On the left and right sides of the image acquisition and analysis unit (501), lifting frames (502) are symmetrically installed. On the side of the lifting frame (502) away from the image acquisition and analysis unit (501), a guiding track (503) is connected.

6. The automated visual inspection device with a flip structure according to claim 5, characterized in that: The image acquisition and analysis unit (501), the lifting frame (502), and the guiding track (503) are connected in an "H" - shaped structure, and the lifting frame (502) and the guiding track (503) are slidably connected to each other.

7. The automated visual inspection device with a flip structure according to claim 2, characterized in that: The lighting assembly (7) includes a fixing frame (701), a double - section shaft frame (702), a connecting frame (703), and a lighting lamp (704). On one side of the fixing frame (701), a double - section shaft frame (702) is connected. At the end of the double - section shaft frame (702) away from the fixing frame (701), a connecting frame (703) is connected. On the side of the connecting frame (703) away from the double - section shaft frame (702), a lighting lamp (704) is installed.

8. The automated visual inspection device with a flip structure according to claim 7, characterized in that: The lighting assembly (7) is fixedly installed on the side of the image acquisition unit (6) through the fixing frame (701), and the image acquisition unit (6) is vertically and fixedly connected to the bottom of the image acquisition and analysis unit (501).

Images