Product surface automatic photographing detection equipment based on machine vision

Abstract

The utility model relates to the technical field of automobile part production devices, and particularly discloses a product surface automatic photographing detection device based on machine vision. The supporting part is located in the shooting area and used for placing the cover plate; the first image acquisition component and the planar light source are carried on the mechanical arm, are positioned above the workbench and are used for acquiring image information of the upper side of the cover plate; the second image acquisition part and the linear light source are arranged in the workbench and are used for acquiring image information of the lower side of the cover plate; the processing terminal is electrically connected with the first image acquisition assembly and the second image acquisition assembly and is used for comparing the image information of the cover plate; according to the utility model, image information acquisition work of the upper side and the lower side of the cover plate can be automatically completed, image information comparison work can be completed, the manual labor amount of workers is reduced, and the detection efficiency of the cover plate is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts production equipment, and in particular to an automated photographic inspection device for product surfaces based on machine vision. Background Technology

[0002] After the radar and laser cover plate on the roof of a new energy vehicle is produced, it is still necessary to check whether all the components on the cover plate are installed completely.

[0003] In current production, it is common practice to manually take photos of the cover plate surface from different angles using a handheld camera. The camera is then used to visually inspect whether any clips on the cover plate are missing, and whether the positioning posts, positioning plates, insert nuts, and foam are intact and undamaged, or broken. The photos are then archived to ensure that each cover plate meets production requirements and guarantees product quality.

[0004] However, such inspection work relies too heavily on visual inspection, resulting in excessive manual labor, increased labor costs for the factory, and low inspection efficiency for the cover plates. Utility Model Content

[0005] In view of the above problems, this utility model provides an automated product surface photographic inspection device based on machine vision, the purpose of which is to reduce manual labor and improve the inspection efficiency of cover plates.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] An automated product surface imaging inspection device based on machine vision is provided, comprising: a worktable with an imaging area set on the worktable; a support component located within the imaging area for placing a cover plate; a first image acquisition component and a surface light source mounted on a robotic arm above the worktable for acquiring image information of the upper side of the cover plate; a second image acquisition component and a linear light source located inside the worktable for acquiring image information of the lower side of the cover plate; and a processing terminal electrically connected to the first and second image acquisition components for comparing the image information of the cover plate.

[0008] Furthermore, the support component includes: a first support component and a first telescopic component; wherein, the first support component is slidably mounted on the worktable and can reciprocate in the horizontal direction, the main body of the first telescopic component is disposed on the worktable, the piston rod of the first telescopic component is connected to the first support component, and the piston rod of the first telescopic component performs telescopic movement, which can drive the first support component into / out of the shooting area; the support component also includes: a second support component and a second telescopic component; wherein, the second support component is vertically mounted on the worktable and can reciprocate in the vertical direction, the main body of the second telescopic component is disposed on the worktable, the piston rod of the second telescopic component is drively connected to the second support component, and the piston rod of the second telescopic component performs telescopic movement, which can drive the second support component into / out of the shooting area.

[0009] Furthermore, the device also includes: a support plate slidably disposed within the worktable, with the piston rod of the second telescopic component connected to the support plate; a sliding sleeve disposed on the support plate; a sliding rod installed vertically, one end of which is connected to the second support component, and the other end of which is slidably disposed within the sliding sleeve; a guide plate vertically disposed within the worktable; a guide groove inclined at a fixed angle to the horizontal plane and formed on the guide plate; and a guide shaft, one end of which is fixedly connected to the second support component, and the other end of which is slidably placed within the guide groove.

[0010] Furthermore, the device also includes a support plate, one end of which is connected to a second support component, and the other end of which is connected to a guide shaft.

[0011] Furthermore, two first image acquisition components are installed on the robotic arm, with the shooting direction of the two first image acquisition components set vertically, and a surface light source is installed between the two first image acquisition components.

[0012] Furthermore, along the length of the cover plate, three second image acquisition components are arranged inside the worktable, and two linear light sources are symmetrically installed on both sides of each second image acquisition component.

[0013] Furthermore, the device also includes a light shield that can cover the workbench.

[0014] The beneficial effects of this invention are as follows: The robotic arm can drive the first image acquisition component to move, capturing image information from different angles of the cover plate and transmitting it to the processing terminal. This allows for complete image acquisition of the arched upper surface of the cover plate, ensuring the accuracy of subsequent image comparison. By setting a second image acquisition component, image information can be acquired from the lower side of the cover plate for subsequent image comparison. Using this invention, image acquisition of both the upper and lower sides of the cover plate can be automatically completed, image comparison can be performed, and the determination of whether the cover plate meets production requirements can be automatically completed. This reduces the manual labor required by workers, effectively lowers factory labor costs, and improves the efficiency of cover plate inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the testing equipment provided in the embodiments of this application.

[0016] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0017] Figure 3 This is a schematic diagram of the internal installation structure of the workbench provided in an embodiment of this application.

[0018] Figure 4 for Figure 3 A magnified view of part B in the diagram.

[0019] The components include: 1. Workbench; 21. First image acquisition component; 22. Second image acquisition component; 23. Surface light source; 24. Linear light source; 31. First support component; 32. Second support component; 41. First telescopic component; 42. Second telescopic component; 51. Bearing plate; 52. Sliding sleeve; 53. Sliding rod; 54. Guide plate; 55. Guide groove; 56. Guide shaft; 57. Support plate; 6. Robotic arm; 7. Light shield. Detailed Implementation

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1As shown in the figure, this application discloses an automated product surface imaging inspection device based on machine vision, including: a workbench 1 with an imaging area set on the workbench 1; a support component located within the imaging area for placing a cover plate; a first image acquisition component 21 and a surface light source 23 mounted on a robotic arm 6 above the workbench 1 for acquiring image information of the upper side of the cover plate; a second image acquisition component 22 and a linear light source 24 located inside the workbench 1 for acquiring image information of the lower side of the cover plate; and a processing terminal electrically connected to the first and second image acquisition components for comparing the image information of the cover plate.

[0022] In this invention, the robotic arm 6 can drive the first image acquisition component 21 to move, capture image information of the cover plate from different angles, and transmit it to the processing terminal. This allows for complete image acquisition of the arched upper surface of the cover plate, ensuring the accuracy of subsequent image information comparison. By setting the second image acquisition component 22, image information can be acquired of the lower side of the cover plate for subsequent image information comparison.

[0023] It is worth mentioning that the processing terminal can be a PC as the processing platform. The processing terminal stores image information of the cover plate that meets the production standards. The image comparison processing is performed based on the PC processing platform. The collected image information is compared with the image information stored in the processing terminal, and the analysis results are output to output devices such as monitors so that the staff can know the analysis results.

[0024] By using this invention, image information can be automatically collected from the upper and lower sides of the cover plate, image information can be compared, and the determination of whether the cover plate meets production requirements can be automatically completed. This reduces the amount of manual labor required by workers, effectively reduces the factory's labor costs, and improves the efficiency of cover plate inspection.

[0025] It is worth mentioning that both the first image acquisition unit 21 and the second image acquisition unit 22 can be CCD industrial cameras; the robotic arm 6 can be a six-axis industrial robot, and automated operation can be achieved through PLC programming language.

[0026] Reference Figure 3As shown, the support components include: a first support component 31 and a first telescopic component 41; wherein, the first support component 31 is slidably mounted on the worktable 1 and can reciprocate in the horizontal direction; the main body of the first telescopic component 41 is disposed on the worktable 1; the piston rod of the first telescopic component 41 is connected to the first support component 31; the piston rod of the first telescopic component 41 performs telescopic movement, which can drive the first support component 31 into / out of the shooting area; the support components also include: a second support component 32 and a second telescopic component 42; wherein, the second support component 32 is vertically mounted on the worktable 1 and can reciprocate in the vertical direction; the main body of the second telescopic component 42 is disposed on the worktable 1; the piston rod of the second telescopic component 42 is connected to the second support component 32; the piston rod of the second telescopic component 42 performs telescopic movement, which can drive the second support component 32 into / out of the shooting area.

[0027] In this embodiment, a plurality of positioning blocks are respectively provided on the first support component 31 and the second support component 32, and the first support component 31 and the second support component 32 respectively meet the positioning requirements of two different types of cover plates; in addition, a slide rail is provided on the worktable 1, the first support component 31 is slidably disposed on the slide rail, and the piston rod of the first telescopic component 41 is installed parallel to the slide rail.

[0028] By using this utility model, the first support component 31 and the second support component 32 can be alternately placed in the shooting area, and the first support component 31 and the second support component 32 can be flexibly switched in the shooting area, so that different models of cover plates can be positioned on the first support component 31 or the second support component 32, which can meet the shooting and testing needs of different models of cover plates and increase the applicability of this utility model.

[0029] Specifically, the device also includes: a support plate 51, slidably disposed within the worktable 1, with the piston rod of the second telescopic component 42 connected to the support plate 51; a sliding sleeve 52 disposed on the support plate 51; a sliding rod 53 installed vertically, one end of which is connected to the second support component 32, and the other end of which is slidably disposed within the sliding sleeve 52; a guide plate 54 installed vertically within the worktable 1; a guide groove 55 inclined at a fixed angle to the horizontal plane and formed on the guide plate 54; and a guide shaft 56, one end of which is fixedly connected to the second support component 32, and the other end of which is slidably placed within the guide groove 55.

[0030] Specifically, the device also includes a support plate 57, one end of which is connected to the second support component 32, and the other end of which is connected to the guide shaft 56.

[0031] In actual operation, the piston rod of the second telescopic component 42 extends, which can drive the bearing plate 51 to slide in the horizontal direction; simultaneously, under the guidance of the guide groove 55, the guide shaft 56 gradually moves upward, which can push the second support component 32 until the second support component 32 is moved into the shooting area for the cover plate to be tested to be placed.

[0032] In this utility model, when the first support member 31 is used to place the cover plate to be tested, the second support member 32 is placed on one side of the second image acquisition member 22, which can leave the area below the first support member 31 empty, ensuring that the second image acquisition member 22 can perform complete image acquisition work; when the second support member 32 is used to place the cover plate to be tested, the first support member 31 is placed on one side of the first support member 31, ensuring that the first image acquisition member 21 can perform complete image acquisition work.

[0033] In this embodiment, both the first telescopic component 41 and the second telescopic component 42 can be selected as hydraulic cylinders / pneumatic cylinders or electric push rods.

[0034] Reference Figure 2 As shown, two first image acquisition components 21 are installed on the robotic arm 6. The shooting directions of the two first image acquisition components 21 are set vertically, and a surface light source 23 is installed between the two first image acquisition components 21.

[0035] Reference Figure 4 As shown, along the length of the cover plate, three second image acquisition components 22 are arranged inside the worktable 1, and two linear light sources 24 are symmetrically installed on both sides of each second image acquisition component 22.

[0036] It is worth mentioning that the surface light source 23 is composed of several LEDs arranged in a matrix array, and the linear light source 24 is composed of several LEDs arranged in a straight line array.

[0037] Preferably, the device further includes a light shield 7, which can cover the workbench 1 to reduce the interference of external light on image acquisition.

[0038] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A machine vision-based automatic photographing detection device for product surface, characterized in that, The utility model relates to a kind of image information acquisition device for cover plate, including: Workbench (1), shooting area is provided on workbench (1); Supporting component is in shooting area, for cover plate to place; First image acquisition component (21) and facial light source (23), are carried on mechanical arm (6), in the above of workbench (1), for the image information of acquisition cover plate upside; Second image acquisition component (22) and linear light source (24), are set to the inside of workbench (1), for the image information of acquisition cover plate downside; Processing terminal, electrically connected first image acquisition component and second image acquisition component, for comparing the image information of cover plate.

2. The machine vision based automated product surface photographing and detecting device according to claim 1, wherein, Supporting component includes: first supporting component (31) and first telescopic component (41);Wherein, first supporting component (31) is slidably installed on workbench (1), can reciprocate slide along horizontal direction, the main body of first telescopic component (41) is set to workbench (1), piston rod of first telescopic component (41) is connected first supporting component (31), piston rod of first telescopic component (41) does telescopic motion, can drive first supporting component (31) enter / exit shooting area; Supporting component also includes: second supporting component (32) and second telescopic component (42);Wherein, second supporting component (32) is liftably installed on workbench (1), can reciprocate motion in vertical direction, the main body of second telescopic component (42) is set to workbench (1), piston rod of second telescopic component (42) is drivingly connected second supporting component (32), piston rod of second telescopic component (42) does telescopic motion, can drive second supporting component (32) enter / exit shooting area.

3. The machine vision-based automated photographic detection apparatus for product surface according to claim 2, wherein, Also including: Bearing plate (51), slidably set in workbench (1), piston rod of second telescopic component (42) is connected bearing plate (51); Sliding sleeve (52), is set to bearing plate (51); Slide rod (53), is installed along vertical direction, one end of slide rod (53) is connected second supporting component (32), the other end of slide rod (53) is slidably set in sliding sleeve (52); Guide plate (54), is installed vertically in workbench (1); Guide groove (55), is fixed angle obliquely to horizontal plane, is opened in guide plate (54); Guide shaft (56), one end of guide shaft (56) is fixedly connected second supporting component (32), the other end of guide shaft (56) is slidably placed in guide groove (55).

4. The machine vision based automated product surface photographing and detecting device according to claim 3, characterized in that, Also including: Supporting plate (57), one end of supporting plate (57) is connected second supporting component (32), the other end of supporting plate (57) is connected guide shaft (56).

5. The machine vision-based automated product surface photographing and detecting device according to claim 1, wherein, Two first image acquisition components (21) are installed on mechanical arm (6), the shooting direction of two first image acquisition components (21) is vertically set, and facial light source (23) is installed between two first image acquisition components (21).

6. The machine vision-based automated product surface photographing and detecting device according to claim 1, wherein, Three second image acquisition components (22) are set in workbench (1) along the length direction of cover plate, two linear light sources (24) are symmetrically installed on the two sides of each second image acquisition component (22).

7. The machine vision-based automated product surface photographing and detecting device according to claim 1, wherein, Also including: Light shield (7), can cage workbench (1).

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