An optical inspection device for the appearance of battery casings in new energy vehicles

Abstract

This utility model discloses an optical inspection device for the appearance of battery outer casings of new energy vehicles, including a safety fence set on the ground. Inside the safety fence are a product adsorption mechanism, a transfer and calibration platform detection position mechanism, and a visual imaging mechanism. The transfer and calibration platform detection position mechanism is located between the product adsorption mechanism and the visual imaging mechanism. This utility model employs visual inspection to achieve automated inspection, eliminating the need for manual inspection. The transfer and calibration platform detection position mechanism is used to adjust the position of the battery outer casing. This mechanism can be adjusted in three axes, allowing for imaging of the top and side surfaces. The product adsorption mechanism and the visual imaging mechanism utilize two six-axis robots working together to photograph other areas, eliminating blind spots during imaging and enabling visual inspection of battery outer casings of different sizes, thus enhancing adaptability.

Description

Technical Field

[0001] This utility model relates to the field of automatic optical inspection equipment technology, specifically to an optical inspection device for the appearance of the outer casing of new energy vehicle batteries. Background Technology

[0002] In the production and assembly process of battery boxes in the new energy vehicle industry, there are many appearance defects caused by assembly and handling. The main forms of defects caused during the production and assembly of new energy vehicle battery boxes include dents, scratches, peeling, exposed white material, and burns. Because there are many models of new energy vehicles, the styles and dimensions of new energy vehicle battery boxes also vary greatly, especially the size and appearance of bus battery boxes and passenger car battery boxes differ greatly. This necessitates that optical inspection equipment for the appearance of new energy vehicle battery boxes must have extremely high compatibility. Therefore, in order to meet the needs of the client, this utility model designs a set of optical inspection equipment for the appearance of new energy vehicle battery boxes.

[0003] Currently, the main methods for inspecting battery boxes in the new energy vehicle industry are: after the battery boxes are produced and removed from the production line, manual offline inspection of the appearance of the battery boxes is carried out. This method is very labor-intensive, especially for bus battery boxes, which can be up to 3 meters long * 1.3 meters wide * 0.3 meters high. Manual inspection is time-consuming and labor-intensive, and the risk of missed inspections and misjudgments is also very high. Automated inspection lines are also used to inspect the appearance through visual photography. However, the size and appearance of battery boxes vary greatly, and automated inspection lines have poor adaptability and cannot inspect various types of battery boxes.

[0004] To address these issues, we propose an optical inspection device for the appearance of new energy vehicle battery casings. Utility Model Content

[0005] The purpose of this invention is to provide an optical inspection device for the appearance of the outer casing of new energy vehicle batteries, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an optical inspection device for the appearance of a new energy vehicle battery casing, comprising a safety fence, the safety fence being set on the ground, and a product adsorption mechanism, a transfer and correction platform detection position mechanism, and a visual imaging mechanism being arranged inside the safety fence. The transfer and correction platform detection position mechanism is located between the product adsorption mechanism and the visual imaging mechanism. The transfer and correction platform detection position mechanism includes a lifting and unloading platform, the lifting and unloading platform being placed on the ground, and an XY direction servo correction module being fixedly connected to the top surface of the lifting and unloading platform. The safety fence is provided with a loading position mechanism, an OK product bin unloading mechanism, and an NG product bin unloading mechanism on three sides near the product adsorption mechanism.

[0007] Preferably, the product adsorption mechanism includes a first six-axis robot, the end of which is fixed to a product vacuum adsorption fixture, and the first six-axis robot is fixed to the ground.

[0008] Preferably, two electrical control cabinets and a host computer are installed on the outside of the safety fence, a touch screen is fixedly connected to one side of the safety fence, and multiple tri-color lights are fixedly connected to the top surface of the safety fence.

[0009] Preferably, the feeding mechanism includes a feeding port located below the side wall of the safety fence, a feeding trolley placed inside the feeding port, a feeding safety light curtain fixed inside the feeding port, and a feeding request / completion button fixed to one side of the feeding port.

[0010] Preferably, the OKBIN product unloading mechanism includes an OKBIN product unloading port located below the side wall of the safety fence, an OKBIN product unloading trolley placed inside the OKBIN product unloading port, an OKBIN product unloading safety light curtain fixed inside the OKBIN product unloading port, and an OKBIN product unloading request / completion button fixed to one side of the OKBIN product unloading port.

[0011] Preferably, the NG product unloading mechanism includes an NG product unloading port located below the side wall of the safety fence, an NG product unloading trolley placed inside the NG product unloading port, an NG product unloading safety light curtain fixed inside the NG product unloading port, and an NG product unloading request / completion button fixed to one side of the NG product unloading port.

[0012] Preferably, the visual imaging mechanism includes a second six-axis robot, with an imaging camera fixedly attached to the end of the second six-axis robot, and a camera lens light source also fixedly attached to the end of the second six-axis robot, and the second six-axis robot is fixed to the ground.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention employs visual inspection to achieve automated inspection, eliminating the need for manual inspection. It utilizes a transfer and calibration platform detection mechanism to adjust the position of the battery casing. This mechanism can be adjusted in three axes, allowing for photographing of the top and side surfaces. The product adsorption mechanism and visual imaging mechanism employ two six-axis robots working together to photograph other locations, eliminating blind spots during imaging and enabling visual inspection of battery casings of different sizes, thus enhancing adaptability. Attached Figure Description

[0015] Figure 1 These are schematic diagrams of the main body structure in the first and second embodiments of this utility model;

[0016] Figure 2 These are schematic diagrams of the structure of a portion of the main body in the first and second embodiments of this utility model;

[0017] Figure 3 These are schematic diagrams of a portion of the safety fence in the first and second embodiments of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the product adsorption mechanism in the second embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the detection position mechanism of the transfer and correction platform in the second embodiment of this utility model;

[0020] Figure 6 This is a schematic diagram of the visual imaging mechanism in the second embodiment of this utility model.

[0021] In the diagram: 1. Safety fence; 2. Product adsorption mechanism; 3. Transfer and calibration platform detection mechanism; 4. Vision photography mechanism; 5. Electrical control cabinet; 6. Host computer; 11. Loading mechanism; 12. OK product bin unloading mechanism; 13. NG product bin unloading mechanism; 14. Touch screen; 15. Tri-color light; 111. Loading port; 112. Loading trolley; 113. Loading safety light curtain; 114. Loading request / complete button; 121. OK product bin unloading port; 122. OK product bin unloading trolley; 123. 1. OK / BIN product unloading safety light curtain; 124. OK / BIN product unloading request / complete button; 131. NG / BIN product unloading port; 132. NG / BIN product unloading trolley; 133. NG / BIN product unloading safety light curtain; 134. NG / BIN product unloading request / complete button; 21. First six-axis robot; 22. Product vacuum adsorption fixture; 31. Lifting and unloading platform; 32. XY direction servo correction module; 41. Second six-axis robot; 42. Imaging camera; 43. Camera lens light source. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figure 1-3This utility model provides a technical solution: an optical inspection device for the appearance of new energy vehicle battery outer casing, including a safety fence 1, which is set on the ground. Inside the safety fence 1 are a product adsorption mechanism 2, a transfer and correction platform detection position mechanism 3, and a visual imaging mechanism 4. The transfer and correction platform detection position mechanism 3 is located between the product adsorption mechanism 2 and the visual imaging mechanism 4. The transfer and correction platform detection position mechanism 3 includes a lifting and unloading platform 31, which is placed on the ground. An XY direction servo correction module 32 is fixedly connected to the top surface of the lifting and unloading platform 31. The safety fence 1 is close to... The product adsorption mechanism 2 is equipped with a loading mechanism 11, an OK product bin unloading mechanism 12, and an NG product bin unloading mechanism 13 on three sides. The transfer and calibration platform detection mechanism 3 is used to adjust the position of the battery outer box. The transfer and calibration platform detection mechanism 3 can be adjusted in three-axis directions, so that the top and side positions can be photographed. The product adsorption mechanism 2 and the vision photography mechanism 4 use two six-axis robots to take pictures, which can capture other positions. This eliminates blind spots when taking pictures and can photograph battery outer boxes of different sizes for visual inspection, making it more adaptable. Example

[0024] Please see Figure 1-6 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The product adsorption mechanism 2 includes a first six-axis robot 21. The end of the first six-axis robot 21 is fixed to a product vacuum adsorption fixture 22. The first six-axis robot 21 is fixed to the ground. The product adsorption mechanism 2 uses the product vacuum adsorption fixture 22 to adsorb the product and uses the first six-axis robot 21 to adjust its position.

[0025] Two electrical control cabinets 5 and a host computer 6 are installed on the outside of the safety fence 1. A touch screen 14 is fixed on one side of the safety fence 1, and multiple tri-color lights 15 are fixed on the top surface of the safety fence 1.

[0026] The loading mechanism 11 includes a loading port 111 located below the side wall of the safety fence 1. A loading trolley 112 is placed inside the loading port 111. A loading safety light curtain 113 is fixed inside the loading port 111. A loading request / completion button 114 is fixed to one side of the loading port 111.

[0027] OKBIN product unloading mechanism 12 includes an OKBIN product unloading port 121 located below the side wall of safety fence 1. An OKBIN product unloading trolley 122 is placed inside the OKBIN product unloading port 121. An OKBIN product unloading safety light curtain 123 is fixed inside the OKBIN product unloading port 121. An OKBIN product unloading request / completion button 124 is fixed to one side of the OKBIN product unloading port 121.

[0028] The NG product unloading mechanism 13 includes an NG product unloading port 131 located below the side wall of the safety fence 1. An NG product unloading trolley 132 is placed inside the NG product unloading port 131. An NG product unloading safety light curtain 133 is fixed inside the NG product unloading port 131. An NG product unloading request / completion button 134 is fixed to one side of the NG product unloading port 131.

[0029] The visual imaging mechanism 4 includes a second six-axis robot 41, with an imaging camera 42 fixed to the end of the second six-axis robot 41 and a camera lens light source 43 also fixed to the end of the second six-axis robot 41. The second six-axis robot 41 is fixed to the ground. The visual imaging mechanism 4 uses the imaging camera 42 to take pictures of the product, and the second six-axis robot 41 is used to adjust the position of the imaging camera 42.

[0030] In use, the operator presses the loading request / complete button 114 in the loading mechanism 11 to disable the loading safety light curtain 113. After pushing the loading trolley 112 filled with battery outer casings into the loading port 111, the operator presses the loading request / complete button 114 again, thus opening the loading safety light curtain 113. Then, the first six-axis robot 21 in the product adsorption mechanism 2 uses the product vacuum adsorption fixture 22 to pick up one battery outer casing from the loading trolley 112 and place it onto the lifting and unloading platform 31 in the transfer and calibration platform detection mechanism 3. The lifting and unloading platform 31 and the XY direction servo calibration module 32 calibrate the XYZ dimensions of the product. After completion, the second six-axis robot in the vision imaging mechanism 4... Robot 41, equipped with imaging camera 42, takes pictures of the top surface and all other photo-capturing surfaces of the battery outer casing. Then, the product vacuum adsorption fixture 22 in the product adsorption mechanism 2 picks up the battery outer casing from the transfer and calibration platform detection mechanism 3 for adsorption and positioning. Combined with the visual imaging mechanism 4, pictures are taken. During the imaging process, two six-axis robots work in tandem. After completion, the data is transmitted in real-time to the host computer 6. The software AI algorithm analyzes and determines whether the battery outer casing's appearance is OK or NG. The inspected battery outer casings are then sorted and placed into designated BINs. OK products are adsorbed by the product adsorption mechanism 2 and placed into the OK product BIN unloading cart 122 in the OK product BIN unloading mechanism 12. NG products are unloaded by the product... The adsorption mechanism 2 adsorbs and places the NG product bins into the NG product unloading cart 132 of the OK product unloading mechanism 12 or the NG product unloading mechanism 13. When the OK product unloading cart 122 or the NG product unloading cart 132 of the OK product unloading mechanism 12 is full of products, the operator presses the OK product unloading request / complete button 124 of the OK product unloading mechanism 12 or the NG product unloading mechanism 13, which will disable the OK product unloading safety light curtain 123 or the NG product unloading safety light curtain 133. This allows the OK product bins filled with products to be unloaded. The product unloading trolley 122 or the NG product unloading trolley 132 is pushed out. Then, the operator puts an empty OK product unloading trolley 122 or an empty NG product unloading trolley 132 into the OK product unloading port 121 or the NG product unloading port 131. After completion, the operator presses the OK product unloading request / complete button 124 in the OK product unloading mechanism 12 or the NG product unloading request / complete button 134 in the NG product unloading mechanism 13 to open the OK product unloading safety light curtain 123 or the NG product unloading safety light curtain 133, and continues the unloading action. This cycle is repeated and the equipment continues to run for testing.This invention employs visual inspection to achieve automated inspection, eliminating the need for manual inspection. It utilizes a transfer and calibration platform detection mechanism 3 to adjust the position of the battery casing. This mechanism 3 can be adjusted in three axes, allowing for photographing of the top and side surfaces. The product adsorption mechanism 2 and the visual imaging mechanism 4 employ two six-axis robots working together to photograph other areas, eliminating blind spots and enabling visual inspection of battery casings of different sizes, thus enhancing adaptability.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical inspection device for the appearance of battery casings of new energy vehicles, comprising a safety fence (1), characterized in that: The safety fence (1) is set on the ground. Inside the safety fence (1) are a product adsorption mechanism (2), a transfer correction platform detection position mechanism (3), and a visual imaging mechanism (4). The transfer correction platform detection position mechanism (3) is located between the product adsorption mechanism (2) and the visual imaging mechanism (4). The transfer correction platform detection position mechanism (3) includes a lifting and unloading platform (31). The lifting and unloading platform (31) is placed on the ground. The top surface of the lifting and unloading platform (31) is fixed with an XY direction servo correction module (32). The safety fence (1) is provided with a loading position mechanism (11), an OK product BIN product unloading mechanism (12), and an NG product BIN product unloading mechanism (13) on three sides near the product adsorption mechanism (2).

2. The optical inspection equipment for the appearance of battery outer casings of new energy vehicles according to claim 1, characterized in that: The product adsorption mechanism (2) includes a first six-axis robot (21), the end of which is fixed to a product vacuum adsorption fixture (22), and the first six-axis robot (21) is fixed to the ground.

3. The optical inspection equipment for the appearance of new energy vehicle battery outer casing according to claim 1, characterized in that: Two electrical control cabinets (5) and a host computer (6) are installed on the outside of the safety fence (1). A touch screen (14) is fixed on one side of the safety fence (1), and multiple tri-color lights (15) are fixed on the top surface of the safety fence (1).

4. The optical inspection equipment for the appearance of new energy vehicle battery outer casing according to claim 1, characterized in that: The loading mechanism (11) includes a loading port (111) located below the side wall of the safety fence (1), a loading trolley (112) is placed inside the loading port (111), a loading safety light curtain (113) is fixed inside the loading port (111), and a loading request / completion button (114) is fixed on one side of the loading port (111).

5. The optical inspection equipment for the appearance of new energy vehicle battery outer casing according to claim 1, characterized in that: The OKBIN product unloading mechanism (12) includes an OKBIN product unloading port (121) located below the side wall of the safety fence (1). An OKBIN product unloading trolley (122) is placed inside the OKBIN product unloading port (121). An OKBIN product unloading safety light curtain (123) is fixed inside the OKBIN product unloading port (121). An OKBIN product unloading request / completion button (124) is fixed on one side of the OKBIN product unloading port (121).

6. The optical inspection equipment for the appearance of new energy vehicle battery outer casing according to claim 1, characterized in that: The NG product BIN product unloading mechanism (13) includes an NG product BIN product unloading port (131) located below the side wall of the safety fence (1). An NG product BIN product unloading trolley (132) is placed inside the NG product BIN product unloading port (131). An NG product BIN product unloading safety light curtain (133) is fixed inside the NG product BIN product unloading port (131). An NG product BIN product unloading request / completion button (134) is fixed on one side of the NG product BIN product unloading port (131).

7. The optical inspection equipment for the appearance of new energy vehicle battery outer casing according to claim 1, characterized in that: The visual imaging mechanism (4) includes a second six-axis robot (41), an imaging camera (42) is fixedly attached to the end of the second six-axis robot (41), a camera lens light source (43) is also fixedly attached to the end of the second six-axis robot (41), and the second six-axis robot (41) is fixedly attached to the ground.

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