A pipelined vision inspection apparatus

Abstract

The utility model belongs to visual inspection technical field especially relates to a kind of flow line type visual inspection equipment, including machine table, conveying belt component includes rack and the conveying belt being set on the rack;Lower light source component includes the mounting sheet metal fixed on the rack in the inside of conveying belt, and lower light source is fixedly connected on the mounting sheet metal;Upper light source component includes support, and upper light source is fixedly connected on the support;Photographing component includes the camera of flying and photoelectric inductor fixedly connected on rack in the support;Material poking component includes two supporting legs fixedly connected on the machine table, no rod air cylinder is erected on the supporting leg, and material poking plate is fixedly connected on the slider of no rod air cylinder;Industrial computer controls the material poking component, camera of flying and conveying belt component and processes the image obtained by photographing.The utility model can efficiently and accurately detect a variety of products, meet the batch production demand and can automatically sort out detection unqualified.

Description

Technical Field

[0001] This utility model belongs to the field of visual inspection technology, and in particular relates to a production line type visual inspection device. Background Technology

[0002] In modern industrial production, product quality inspection is a crucial step in ensuring product quality. Currently, for detecting short shipments, over-shipments, and defects, traditional inspection methods mostly rely on manual visual inspection or relatively simple mechanical inspection equipment. Manual inspection is not only inefficient and unable to meet the rapid inspection needs of mass production, but it is also susceptible to the subjective factors and fatigue of the inspectors, easily leading to missed or false detections, resulting in inconsistent product quality.

[0003] Some existing automated inspection equipment has relatively limited functions. For example, Chinese utility model patent CN222220347U discloses a visual inspection device, including a cabinet. An X-axis drive device is installed on the upper part of the cabinet, and a Y-axis drive device is installed at the drive end of the X-axis drive device. A light-shielding box is installed on the upper part of the cabinet and on one side of the X-axis drive device. A workpiece inspection station is installed inside the light-shielding box, and a CCD camera is installed behind the workpiece inspection station inside the light-shielding box. The CCD camera can transmit the image data of the workpiece to a display screen. This patented product can achieve automated control when inspecting workpieces, and also provides video viewing, which makes it more intuitive to see whether the product is good or bad, and facilitates selection. In addition, this patent has an automatic comparison program, which can assist manual identification and speed up the inspection efficiency. Good products are automatically classified by a robotic arm, which can pick out defective products.

[0004] The aforementioned existing technologies cannot achieve product visual inspection in an assembly line manner, nor can they simultaneously meet different inspection needs (such as products that require backlighting inspection and products that require direct illumination inspection). They also have certain limitations in inspection speed, making it difficult to adapt to diverse and large-scale industrial production scenarios. They cannot effectively guarantee high-quality product output and cannot automatically sort out defective products. Utility Model Content

[0005] To address at least one technical problem in the existing technology, this application provides a streamlined visual inspection device that can efficiently and accurately inspect a variety of products, meet the needs of mass production, and automatically sort out unqualified products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A streamlined visual inspection device includes a machine base and further includes: Conveyor belt assembly: includes a frame fixedly connected to the machine base and a conveyor belt disposed on the frame; Lower light source assembly: a mounting sheet metal fixed on the frame inside the conveyor belt, and a lower light source fixedly connected to the mounting sheet metal; Upper light source assembly: includes a bracket fixed to the upper surface of the machine base and an upper light source fixedly connected to the bracket; The camera assembly includes a drone camera fixed on the bracket and a photoelectric sensor fixedly connected to a frame below the drone camera. Material feeding assembly: includes two legs fixedly connected to the upper surface of the machine platform, a rodless cylinder horizontally mounted on the legs, and a material feeding plate fixedly connected to the slider of the rodless cylinder; Industrial control computer: controls the material feeding assembly, the flying camera and the conveyor belt assembly, and processes the images obtained by taking pictures.

[0007] Preferably, the system further includes a guide assembly, which includes a fixing block fixedly connected to the frame, a clamping block detachably fixedly connected to the fixing block, a support rod horizontally fixedly inserted between the fixing block and the clamping block and extending above the conveyor belt, and a guide plate fixedly connected to the support rod above the conveyor belt.

[0008] Preferably, the feeding plate includes a connecting plate vertically fixedly connected to the slider of the rodless cylinder, and a pushing plate vertically fixedly connected to the connecting plate; an oblong connecting plate adjustment through hole is provided on the connecting plate in the vertical direction, and a fastening bolt passes through the adjustment through hole of the connecting plate and is fixedly connected to the slider of the rodless cylinder.

[0009] Preferably, the bracket includes a column vertically fixedly connected to the upper surface of the machine platform, a support plate fixedly connected to the column, and a connecting sheet metal fixedly connected to the support plate. The upper light source is fixedly embedded in the connecting sheet metal. The upper light source is a surface light source with a clearance through hole in the middle, and the flying camera is positioned above the clearance through hole.

[0010] Preferably, a support sheet metal is fixedly connected to the support plate on the column above the upper light source, and the flying camera is fixedly connected to the support sheet metal.

[0011] Preferably, a waist-shaped adjustment through hole is provided on the support sheet metal along its length direction, and a fastening bolt passes through the adjustment through hole and is fixedly connected to the corresponding support plate.

[0012] Preferably, the support plate is slidably sleeved on the column, and the horizontally arranged locking bolt is threaded inside the support plate and abuts against the column to fix the support plate on the column.

[0013] Preferably, the connecting sheet metal has an adjustment through hole along the length of the support plate, and the fastening bolt passes through the adjustment through hole and is fixedly connected to the corresponding support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the dual-light source configuration (a lower light source installed in the middle and an upper light source on the inner side of the conveyor belt, respectively), enables the equipment to adapt to products with different testing requirements, greatly improving its versatility and applicability, and allowing for wide application in the testing of various types of products. Secondly, the combination of a photoelectric sensor and a flying camera allows for precise sensing and triggering of images the instant a product passes under the camera, avoiding potential delays or missed detections in traditional testing methods, significantly improving testing speed and accuracy. Furthermore, the material feeding mechanism automatically feeds non-compliant (NG) products or trays to the edge of the production line, facilitating subsequent sorting by personnel, reducing manual workload, and further improving overall testing efficiency. Through these designs, this invention effectively improves the efficiency and quality of product testing, reduces production costs, and meets the needs of modern industrial mass production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the structure after removing the cover in an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the connection structure of the conveyor belt assembly and guide assembly according to an embodiment of the present utility model.

[0018] Figure 4 for Figure 3 A schematic diagram of the structure after the conveyor belt is removed.

[0019] Figure 5 This is a schematic diagram of the structure of the guide component according to an embodiment of the present utility model.

[0020] Figure 6 This is a schematic diagram of the material feeding assembly according to an embodiment of the present invention.

[0021] Figure 7 This is a partial structural diagram of the upper light source component and the photographing component according to an embodiment of the present utility model.

[0022] In the diagram: 1. Machine base; 11. Machine cover; 12. Support frame; 13. Workbench; 14. Inspection station. 2. Conveyor belt assembly; 21. Frame; 22. Rotating shaft; 23. Conveyor belt. 3. Lower light source assembly; 31. Mounting sheet metal; 311. Sheet metal through hole; 32. Lower light source. 4. Upper light source assembly; 41. Upper light source; 411. Clearance through hole; 42. Fixed base; 43. Column; 44. Support plate; 45. Locking bolt; 46. Connecting sheet metal; 461. Connecting sheet metal adjustment through hole; 47. Supporting sheet metal; 471. Supporting sheet metal adjustment through hole. 5. Photography components, 51. Flying camera, 52. Photoelectric sensor. 6. Material feeding assembly; 61. Support leg; 62. Rodless cylinder; 63. Material feeding plate; 631. Connecting plate; 6311. Adjustment through hole of connecting plate; 632. Push plate. 7. Industrial control computer, 8. Guide assembly; 81. Fixing block; 82. Clamping block; 83. Support rod; 84. Guide plate; 85. Locking bolt. 9. Material tray. Detailed Implementation

[0023] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0025] See appendix Figure 1 , 2 As shown, a production line-type visual inspection device includes a machine base 1, a conveyor belt assembly 2, a lower light source assembly 3, an upper light source assembly 4, an image capture assembly 5, a material feeding assembly 6, an industrial control computer 7, a guide assembly 8, a machine cover 11, and a material tray 9 for placing products. The machine base 1 includes a frame-type support frame 12 and a worktable 13 horizontally fixedly connected to the upper end of the support frame 12.

[0026] See Figure 3As shown, the conveyor belt assembly 2 is disposed on the upper end of the worktable 13 for conveying products or trays 9. The conveyor belt assembly 2 is prior art, which includes two parallel frames 21 fixedly connected to the upper surface of the worktable 13. The frames 21 are profile structures. Rotating shafts 22 are rotatably connected at the ends of the two frames 21. A conveyor belt 23 is sleeved on the two rotating shafts 22 and rotates with the rotating shafts 22. In addition, it also includes a drive motor (not shown in the figure), which drives the rotating shafts 22 to rotate, thereby driving the conveyor belt 23 to convey products forward.

[0027] It should be noted that the tray 9 is not an essential component in this embodiment. The product to be tested can be placed directly on the conveyor belt 23 for transport (this method is suitable for products that require backlighting for testing), or the product to be tested can be placed in the placement slot within the tray 9 (this method is suitable for products that require direct illumination for testing), and the tray 9 can be transported by the conveyor belt. The tray 9 can be specifically designed according to the shape and size of the product, and it is existing technology.

[0028] See Figure 5 As shown, the guide assembly 8 is mounted on the frame 21 at the feed inlet of the conveyor belt assembly 2, and is used to guide the product or tray 9.

[0029] The guide assembly 8 includes a fixing block 81 fixedly connected to the frame 21, a clamping block 82 detachably fixedly connected to the fixing block 81 by bolts, a support rod 83 horizontally fixedly inserted between the fixing block 81 and the clamping block 82 and extending above the conveyor belt 23, and a guide plate 84 welded to the support rod 83 above the conveyor belt 23.

[0030] Specifically, since the frame 21 is a profile structure, the fixing block 81 is detachably and fixedly connected to the frame 21 via existing connectors. A curved groove is formed on the end face of the fixing block 81 opposite to the clamping block 82. The support rod 83 is embedded in this curved groove. The locking bolt 85 passes through the clamping block 82 and is threaded into the fixing block 81, thereby fixing the support rod 83 between the fixing block 81 and the clamping block 82. When it is necessary to adjust the length of the guide plate 84 extending above the conveyor belt 23, loosen the locking bolt 85, pull the support rod 83 back and forth to the desired position, and then tighten the locking bolt 85.

[0031] The guide plate 84 has an inverted U-shaped structure. In order to improve the stability of the guide plate 84 in guiding the product and the tray 9, two sets of fixing blocks 81, clamping blocks 82, support rods 83 and locking bolts 85 are provided.

[0032] See Figure 4As shown, the lower light source assembly 3 includes a mounting sheet metal 31 fixed to the inner end face of the two frames 21. A sheet metal through hole 311 is provided on the mounting sheet metal 31, and the lower light source 32 is fixedly embedded in the sheet metal through hole 311 by bolts. The lower light source 32 is a conventional surface light source. The lower light source 32 is located inside the conveyor belt 23 and faces upwards. When the lower light source 32 is turned on, it can illuminate the product located on the conveyor belt 23 from below, so that the photographing assembly 5 can take pictures of the product.

[0033] See Figure 2 , 7 As shown, the upper light source assembly 4 includes a bracket fixed to the upper surface of the worktable 13 and an upper light source 41 fixedly connected to the bracket. The upper light source 41 is an existing surface light source.

[0034] Specifically, the support includes six fixed bases 42 that are bolted to the upper surface of the workbench 13. The six fixed bases 42 are arranged symmetrically on both sides of the conveyor belt assembly 2.

[0035] A column 43 is fixedly inserted into each fixed base 42, and a support plate 44 is fixedly connected to the column 43. Specifically, the support plate 44 has a through hole, and the horizontally positioned support plate 44 can be slidably fitted onto the column 43, thereby facilitating the adjustment of the height of the support plate 44. To facilitate fixing the support plate 44 to the column 43, a horizontally positioned locking bolt 45 is threaded into the support plate 44 and abuts against the column 43 to fix the support plate 44 to the column 43. A connecting sheet metal 46 is bolted to the support plate 44. The upper light source 41 is bolted and embedded in the connecting sheet metal 46, which can be a flat plate structure. Since the photographing component 5 is located above the upper light source 41, in order to avoid the upper light source 41 blocking the photographing component 5, in this embodiment, the upper light source 41 is a surface light source with a clearance through hole 411 in the middle, and the flying camera 51 of the photographing component 5 is located above the clearance through hole 411.

[0036] Furthermore, in order to facilitate the adjustment of the relative position of the connecting sheet metal 46 on the support plate 44, thereby adjusting the relative position of the upper light source 41 and the photographing component 5, in this embodiment, a connecting sheet metal adjustment through hole 461 is provided on the connecting sheet metal 46 along the length direction of the support plate 44, and a fastening bolt (not shown in the figure) passes through the connecting sheet metal adjustment through hole 461 and is fixedly connected to the corresponding support plate 44.

[0037] The camera assembly 5 includes a drone camera 51 fixed on a bracket and a photoelectric sensor 52 fixedly connected to a frame 12 below the drone camera 51.

[0038] Specifically, a support plate 44 is also provided on the column 43 located in the middle position above the upper light source 41. A support sheet metal 47 is fixedly connected to the support plate 44, and the flying camera 51 is fixedly connected to the support sheet metal 47. A waist-shaped support sheet metal adjustment through hole 471 is opened on the support sheet metal 47 along its length direction. Fastening bolts are inserted into the support sheet metal adjustment through hole 471 and threaded to the corresponding support plate 44 to fix the support sheet metal 47 to the support plate 44. It should be noted that the support plate 44 that fixes the support sheet metal 47 has the same structure as the support plate 44 that fixes the sheet metal 46, and both include locking bolts 45 that are correspondingly provided on the support plate 44.

[0039] See Figure 4 As shown, the area below the aerial camera 51 is designated as inspection station 14. A connecting plate (not shown) is bolted to the frame 21 at inspection station 14. The photoelectric sensor 52 is positioned facing the inside of the conveyor belt 23 and is fixedly mounted on the connecting plate. When a product or tray 9 is conveyed to inspection station 14, the photoelectric sensor 52 is triggered, and the industrial control computer 7 controls the conveyor belt 23 to stop rotating and controls the aerial camera 51 to take a picture of the product to be inspected.

[0040] See Figure 2 , 6 As shown, this embodiment also includes a material feeding component 6, which can feed products or trays 9 that are detected as non-conforming (NG) towards the edge of the conveyor belt 23 to distinguish qualified products and remind operators to remove non-conforming products.

[0041] The feeding assembly 6 includes two support legs 61 bolted to the upper surfaces of the worktables 13 on both sides of the conveyor belt assembly 2, a rodless cylinder 62 horizontally mounted on the support legs 61, and a feeding plate 63 fixedly connected to the slider of the rodless cylinder 62. The feeding plate 63 includes a connecting plate 631 vertically fixedly connected to the slider of the rodless cylinder 62, and a pusher plate 632 integrally formed and vertically fixedly connected to the connecting plate 631. A waist-shaped adjusting through hole 6311 is provided vertically on the connecting plate 631, and a fastening bolt (not shown in the drawing) passes through the adjusting through hole 6311 and is fixedly connected to the slider of the rodless cylinder 62. Through this structure, the distance between the pusher plate 632 and the upper surface of the conveyor belt 23 can be adjusted.

[0042] See Figure 1As shown, this embodiment also includes a cover 11, which is an existing mechanism. The cover 11 is detachably and fixedly mounted on the upper surface of the workbench 13. The upper light source assembly 4, the photographing assembly 5, and the material feeding assembly 6 are disposed inside the cover 11. The industrial control computer 7 is fixed to the outside of the cover 11 via a boom. The industrial control computer 7 is existing technology; it is used to connect and control the conveyor belt assembly 2, the lower light source assembly 3, the upper light source assembly 4, the photographing assembly 5, and the material feeding assembly 6, and to recognize the images captured by the flying camera 51 to inspect the products.

[0043] The working principle and process of this embodiment are as follows: First, the operator or existing robotic arm places the product to be inspected or the tray 9 containing the product onto the conveyor belt 23, which then moves the product or tray forward. When the product or tray moves to the inspection station 14, i.e., enters the sensing area of ​​the photoelectric sensor 52, the photoelectric sensor 52 detects the presence of the product or tray, triggering the flying camera 51 to take a picture and simultaneously transmitting the trigger signal to the industrial control computer 7. The product image information captured by the flying camera 51 is then transmitted to the industrial control computer 7, which uses a preset detection algorithm to analyze and process the image to determine if the product has problems such as short shipments, over-shipments, or defects. When the judgment result is that the product is unqualified, the industrial control computer 7 controls the slider of the rodless cylinder 62 to slide, thereby driving the material-pushing plate 63 to push the product or tray towards the edge of the conveyor belt 23, after which the rodless cylinder 62 returns to its initial position. Finally, the personnel at the end of the conveyor belt 23 collect the products and place the qualified (OK) and unqualified (NG) products separately according to their positions, completing the entire inspection process.

[0044] It should be noted that the connection and control principle between the industrial control computer 7 and the conveyor belt assembly 2, the lower light source assembly 3, the upper light source assembly 4, the photographing assembly 5, the material feeding assembly 6, etc., as well as the process of the industrial control computer 7 recognizing the photographed images, are all existing technologies. As long as the above process can be achieved, it is acceptable. In addition, there are also necessary components such as solenoid valves and air sources that cooperate with the rodless cylinder 62. These are all existing technologies and will not be described in detail here.

[0045] 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. A streamlined visual inspection device, comprising a machine base, characterized in that: Also includes: Conveyor belt assembly: includes a frame fixedly connected to the machine base and a conveyor belt disposed on the frame; Lower light source assembly: includes a mounting sheet metal fixed on the frame inside the conveyor belt, and a lower light source fixedly connected to the mounting sheet metal; Upper light source assembly: includes a bracket fixed to the upper surface of the machine base and an upper light source fixedly connected to the bracket; The camera assembly includes a drone camera fixed on the bracket and a photoelectric sensor fixedly connected to a frame below the drone camera. Material feeding assembly: includes two legs fixedly connected to the upper surface of the machine platform, a rodless cylinder horizontally mounted on the legs, and a material feeding plate fixedly connected to the slider of the rodless cylinder; Industrial control computer: controls the material feeding assembly, the flying camera and the conveyor belt assembly, and processes the images obtained by taking pictures.

2. The assembly line type visual inspection equipment according to claim 1, characterized in that: It also includes a guide assembly, which includes a fixing block fixedly connected to the frame, a clamping block detachably fixedly connected to the fixing block, a support rod horizontally fixedly inserted between the fixing block and the clamping block and extending above the conveyor belt, and a guide plate fixedly connected to the support rod above the conveyor belt.

3. The automated visual inspection equipment according to claim 1, characterized in that: The feeding plate includes a connecting plate vertically fixed to the slider of the rodless cylinder, and a pushing plate vertically fixed to the connecting plate; an oblong connecting plate adjustment through hole is provided on the connecting plate in the vertical direction, and a fastening bolt passes through the adjustment through hole of the connecting plate and is fixedly connected to the slider of the rodless cylinder.

4. The assembly line type visual inspection equipment according to claim 1, characterized in that: The bracket includes a column vertically fixedly connected to the upper surface of the machine platform, a support plate fixedly connected to the column, and a connecting sheet metal fixedly connected to the support plate. The upper light source is fixedly embedded in the connecting sheet metal. The upper light source is a surface light source with a clearance through hole in the middle. The flying camera is set above the clearance through hole.

5. The assembly line type visual inspection device according to claim 4, characterized in that: A support sheet metal is fixedly connected to the support plate on the column above the light source, and the flying camera is fixedly connected to the support sheet metal.

6. The assembly line type visual inspection device according to claim 5, characterized in that: An oblong adjustment through hole is provided on the support sheet metal along its length direction, and a fastening bolt passes through the adjustment through hole and is fixedly connected to the corresponding support plate.

7. A streamlined visual inspection device according to any one of claims 4-6, characterized in that: The support plate is slidably sleeved on the column, and the horizontally arranged locking bolt is threaded inside the support plate and abuts against the column to fix the support plate on the column.

8. The automated visual inspection equipment according to claim 7, characterized in that: An adjustment through hole is provided on the connecting sheet metal along the length of the support plate, and a fastening bolt passes through the adjustment through hole and is fixedly connected to the corresponding support plate.

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