Pump head and pump core steel belt structure detection device and system

Abstract

The present invention relates to the field of shape detection technology, and discloses a pump head pump core steel belt structure detection device and system, including a base, a frame is slidably mounted on the top of the base, and transport components are provided at both ends of the frame, and the transport components include rotating wheels, and the outer side of the rotating wheels is meshed and connected with a steel belt; a first detection component and a second detection component are respectively provided on the frame, the first detection component includes a first detection camera, a second detection camera, and a third detection camera, and the second detection component includes a fourth detection camera and a fifth detection camera; the present invention transports the pump head pump core through double steel belts, so that the top and bottom of the pump head pump core can be exposed, and the top and bottom can be detected; when the steel belt is used for transportation, the steel belt can be ultra-thin, reducing the shielding of the pump head pump core by the thickness of the steel belt itself, thereby improving the accuracy of the results.

Description

Technical Field

[0001] The present invention belongs to the technical field of shape detection, and in particular relates to a device and system for detecting the steel strip structure of a pump head and pump core. Background Art

[0002] The traditional inspection method for the pump head and pump core of micro pumps mainly relies on manual work. Long hours of work can easily lead to problems such as eye fatigue or mental exhaustion. The high intensity of work makes it difficult for workers to maintain a high level of mental concentration, resulting in a decrease in the efficiency and quality of the inspection process, and unqualified products are easily circulated.

[0003] Patent publication number CN113049602A discloses a lotion pump cover defect detection machine based on machine vision detection technology, in which the feeding mechanism, the heart wheel segmentation mechanism, the bottom surface detection mechanism, the bottom surface defect defective product unloading mechanism, the conveyor belt conveying mechanism, the side detection mechanism, the side defect defective product unloading mechanism and the good product unloading mechanism are reasonably arranged, occupying a small space, and can realize the orderly segmentation of the pump cover and the all-round side and bottom surface detection, accurately detect the defects on the surface of the lotion pump cover, automatically identify the good and defective products, and sort them out, thereby realizing the fully automatic detection of the surface defects of the lotion pump cover, improving production efficiency and the quality of detection; under the heart wheel segmentation mechanism The bottom surface inspection mechanism is installed on the side of the pump cap, which reduces the length of the conveyor belt conveyor mechanism of the lotion pump cap defect inspection machine while ensuring the camera's shooting effect, saving space. The ring-shaped auxiliary light source combined with the bottom surface inspection camera ensures uniform illumination of the bottom surface of the pump cap, improving image quality. Three sets of strip light sources are arranged around the side inspection station, providing 360° coverage of the pump cap side. Combined with the three sets of side inspection cameras, 360° coverage of the pump cap side is achieved, ensuring uniform illumination of the pump cap side, improving image quality. The heart wheel segmentation mechanism can segment eight pump caps per revolution, enabling rapid inspection of pump caps and meeting the needs of actual industrial production. Among them, while ensuring the consistency of the speed of the conveyor belt conveyor mechanism and the heart wheel segmentation mechanism, the motor speed can be adjusted according to the needs to achieve a balance between inspection speed and inspection stability of the visual inspection machine.

[0004] However, this technical solution still has at least the following defects: in this solution, the pump cover is directly transported by the conveyor belt, and the contact surface between the pump cover and the conveyor belt cannot be photographed or inspected. In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a pump head and pump core steel belt structure detection device and system, which transports the pump head and pump core by double steel belts, so that the top and bottom of the pump head and pump core can be exposed, and the top and bottom can be inspected; when the steel belt is used for transportation, the steel belt can be ultra-thin, reducing the obstruction of the pump head and pump core by the thickness of the steel belt itself, thereby improving the accuracy of the results.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A pump head and pump core steel belt structure detection device includes a base, a frame is slidably mounted on the top of the base, and a transport assembly is provided at both ends of the frame. The transport assembly includes a rotating wheel, and a steel belt is meshed and connected to the outer side of the rotating wheel. The transport assembly drives the steel belt to transport the pump head and pump core through the rotating wheel;

[0008] The frame is respectively provided with a first detection component and a second detection component, the first detection component includes a first detection camera, a second detection camera, and a third detection camera, the second detection component includes a fourth detection camera and a fifth detection camera, the first detection component is used to detect the side shape of the pump head and pump core, and the second detection component is used to detect the top and bottom shapes of the pump head and pump core.

[0009] As a preferred embodiment of the present invention, the frame and its connecting parts are each provided with two symmetrically distributed ones, and a mounting plate is fixedly installed at both ends of each frame, one end of the rotating wheel is rotatably connected to the mounting plate, a driving mechanism is fixedly installed on one side of the mounting plate, and the output end of the driving mechanism is fixedly connected to the rotating wheel.

[0010] As a preferred embodiment of the present invention, a bracket is installed on the top of each of the racks, a guide wheel is installed on the top of the bracket, and a supporting wheel is installed on the side of the bracket, and the supporting wheel is engaged with the steel belt. A pushing mechanism and a mounting bracket are fixedly installed at one end of the racks on both sides, respectively. The first detection camera, the second detection camera, and the third detection camera are installed on the pushing mechanism, and the fourth detection camera and the fifth detection camera are fixedly installed on the mounting bracket. The detection direction of the fourth detection camera is opposite to that of the fifth detection camera.

[0011] As a preferred embodiment of the present invention, a screening assembly is arranged between the two mounting plates located at the same end, and the screening assembly includes a power mechanism. The two sides of the power mechanism are movably connected to the mounting plates on both sides through plug rods, and the top of the power mechanism is in contact with the rotating wheel. A guide plate is installed at one end of the power mechanism, and the screening assembly controls the guide plate to rotate to different angles through the power mechanism.

[0012] As a preferred embodiment of the present invention, an adjustment mechanism is installed on the top of the base, and the adjustment mechanism includes an adjusting handwheel and a screw rod. A sleeve is installed on the outside of the screw rod, one end of the screw rod and one end of the sleeve are respectively connected to the two frames, and the adjusting handwheel drives the screw rod to rotate to control the distance between the two frames.

[0013] A pump head and pump core steel strip structure detection system, comprising an adjustment unit, a detection unit and a sorting unit;

[0014] The adjustment unit is used to adjust the distance between the first detection camera, the second detection camera and the third detection camera;

[0015] The detection unit is used to detect the images acquired by the first detection component and the second detection component, and perform feature matching;

[0016] The sorting unit is used to sort the pump heads and pump cores according to the detection results of the detection unit.

[0017] As a preferred embodiment of the present invention, the adjustment unit includes a speed acquisition strategy, which includes respectively acquiring the moving speeds V1 and V2 of the two steel belts, and acquiring the radius R of the cross section where the pump head and pump core contact the steel belts, thereby obtaining the speed V=(V1+V2) / 2 of the pump head and pump core following the steel belt, and the angular velocity ω=|(V1-V2) / 2R| of the pump head and pump core's rotation;

[0018] The adjustment unit also includes a position correction strategy, which obtains the distances between the first detection camera, the second detection camera, and the third detection camera based on the pump head pump core movement speed V and the pump head pump core rotation angular speed ω obtained by the speed acquisition strategy. The position correction strategy also includes rotating the pump head pump core at an angle α=2π / 3+2nπ when the pump head pump core moves to the second detection camera, and rotating the pump head pump core at an angle β=π / 3+2mπ when the pump head pump core moves to the third detection camera, wherein n represents the number of full circles rotated when the pump head pump core moves to the second detection camera, and m represents the number of full circles rotated when the pump head pump core moves to the third detection camera. Both n and m are natural numbers, and m is greater than n. Based on this, the time t1 when the pump head pump core moves from the first detection camera to the second detection camera is obtained;

[0019] t1=(2π / 3+2nπ) / |(V1-V2) / 2R|;

[0020] The time t2 when the pump head and pump core move from the first detection camera to the third detection camera;

[0021] t2=(π / 3+2mπ) / |(V1-V2) / 2R|;

[0022] The position correction strategy further includes obtaining a distance S1 between the first detection camera and the second detection camera based on the time taken for the pump head pump core to travel from the first detection camera to the second detection camera and the third detection camera;

[0023] S1=(2π / 3+2nπ)(V1+V2) / |(V1-V2) / R|;

[0024] The distance S2 between the second detection camera and the third detection camera;

[0025] S2=[-π / 3+2(mn)π](V1+V2) / |((V1-V2) / R|;

[0026] The position correction strategy also includes controlling the driving mechanism based on S1 and S2 to drive the second detection camera and the third detection camera to move, so that the pump head and pump core are in three different orientations when passing by, to represent that the detection component detects the three different orientations of the pump head and pump core.

[0027] As a preferred embodiment of the present invention, the detection unit includes a side detection strategy, which includes acquiring a real-time side image when the pump head and pump core move to the first detection camera, the second detection camera, and the third detection camera, and extracting side real-time feature information based on the real-time side image. The detection unit is configured with a standard side image and side standard feature information, and performs feature matching on the extracted side real-time feature information and the side standard feature information, and establishes a side feature binary image based on the result of the feature matching;

[0028] The detection unit also includes an end detection strategy, which includes obtaining a real-time top image and a real-time bottom image through the fourth detection camera and the fifth detection camera when the pump head and pump core move to the fourth detection camera, and extracting the top real-time feature information and the bottom real-time feature information. The detection unit is configured with a standard top image and top standard feature information and a standard bottom image and bottom standard feature information, and performs feature comparison on the extracted top real-time feature information and the top standard feature information, and performs feature comparison on the extracted bottom real-time feature information and the bottom standard feature information, and establishes a top feature binary image and a bottom feature binary image respectively according to the results of feature matching.

[0029] As a preferred embodiment of the present invention, the detection unit also includes a result evaluation strategy, which is configured with a standard evaluation value, characterizing that the pump head and pump core are in a qualified state. The result evaluation strategy includes, after the third detection camera acquires the real-time side image, executing an evaluation procedure on the side feature binary image, the top feature binary image, and the bottom feature binary image, wherein the evaluation procedure includes acquiring the area of the difference area in the side feature binary image, the top feature binary image, and the bottom feature binary image, and calculating the ratio of the area in the difference area to the total area to obtain an actual evaluation value, and comparing the actual evaluation value with the standard evaluation value;

[0030] When the evaluation values of the side feature binary image, the top feature binary image, and the bottom feature binary image are all less than the standard evaluation values, it indicates that the pump head and pump core are qualified and a qualified instruction is generated; otherwise, it indicates that the pump head and pump core are unqualified and an unqualified instruction is generated.

[0031] As a preferred embodiment of the present invention, the sorting unit includes a delay calculation strategy, which includes obtaining the horizontal distance X between the third detection camera and the screening assembly, and calculating the time T = 2X / (V1 + V2) for the pump head and pump core to move from the third detection camera to the screening assembly based on the movement speed of the pump head and pump core;

[0032] The sorting unit further includes a delayed sorting strategy, wherein the delayed sorting strategy includes an instruction control power mechanism generated based on the result evaluation strategy;

[0033] When a qualified instruction is received, the delayed sorting strategy is to control the rotation of the guide plate through the power mechanism after a time T, and the qualified pump heads and pump cores are sorted into the qualified area;

[0034] When an unqualified instruction is received, the delayed sorting strategy is to control the guide plate to rotate in the opposite direction through the power mechanism after a time T, so that the unqualified pump head and pump core are sorted into the unqualified area.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The present invention uses double steel belts to transport the pump head and pump core, so that the top and bottom of the pump head and pump core can be exposed, and the top and bottom can be inspected;

[0037] The present invention uses a steel belt for transportation, and the steel belt can be ultra-thin, which reduces the shielding of the pump head and pump core by the thickness of the steel belt itself, thereby improving the accuracy of the results;

[0038] The present invention combines the device with the system and utilizes the system to control the overall operation of the device, which is simple to operate, saves manpower, and is convenient for debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of a pump head and pump core steel belt structure detection device of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0041] Figure 3 This is a schematic diagram of the transverse cross-sectional structure of a pump head and pump core steel strip structure detection device of the present invention;

[0042] Figure 4 This is a schematic structural diagram of the second detection component of the present invention;

[0043] Figure 5 This is a schematic diagram of the power mechanism structure of the present invention;

[0044] Figure 6 This is a standard side view of the pump head and pump core of the present invention;

[0045] Figure 7 This is a standard top image of the pump head and pump core of the present invention;

[0046] Figure 8 This is the standard bottom image of the pump head and pump core of the present invention;

[0047] Figure 9 This is a schematic diagram of the process flow of the adjustment unit of the present invention;

[0048] Figure 10 This is a schematic diagram of the detection unit process of the present invention;

[0049] Figure 11 This is a flow chart of the result evaluation strategy of the present invention;

[0050] Figure 12 Schematic diagram of the separation unit process of the present invention.

[0051] Reference numerals:

[0052] 001. Base; 002. Frame; 003. Adjustment mechanism; 004. Mounting plate; 005. Rotating wheel; 006. Driving mechanism; 007. Steel belt; 008. Bracket; 009. Guide wheel; 010. Supporting wheel; 011. First detection camera; 012. Second detection camera; 013. Third detection camera; 014. Pushing mechanism; 015. Fourth detection camera; 016. Fifth detection camera; 017. Mounting bracket; 018. Power mechanism; 019. Guide plate. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0054] Example 1

[0055] like Figures 1 to 5 As shown, a pump head and pump core steel belt structure detection device includes a base 001, a frame 002 is slidably mounted on the top of the base 001, and a transport assembly is provided at both ends of the frame 002. The transport assembly includes a rotating wheel 005, and a steel belt 007 is meshed and connected to the outer side of the rotating wheel 005. The transport assembly drives the steel belt 007 to transport the pump head and pump core through the rotating wheel 005;

[0056] A first detection component and a second detection component are respectively provided on the frame 002. The first detection component includes a first detection camera 011, a second detection camera 012, and a third detection camera 013. The second detection component includes a fourth detection camera 015 and a fifth detection camera 016. The first detection component is used to detect the side shape of the pump head and pump core, and the second detection component is used to detect the top and bottom shapes of the pump head and pump core.

[0057] like Figure 1 、 Figure 3 As shown, in a specific embodiment, the frame 002 and its connecting components are each provided with two symmetrically distributed ones, and each frame 002 is fixedly mounted with a mounting plate 004 at both ends. One end of the rotating wheel 005 is rotatably connected to the mounting plate 004. A drive mechanism 006 is fixedly mounted on one side of the mounting plate 004. The output end of the drive mechanism 006 is fixedly connected to the rotating wheel 005. The drive mechanism 006 consists of a servo motor and a reducer. In this configuration, the servo motor drives the rotating wheel 005 through the reducer, and the rotating wheel 005 drives the steel belt 007 to rotate, and the steel belt 007 drives the pump head and pump core to move.

[0058] like Figure 1 、 Figure 3 、 Figure 4 As shown, further, a bracket 008 is installed on the top of each rack 002, a guide wheel 009 is installed on the top of the bracket 008, and a supporting wheel 010 is installed on the side of the bracket 008, and the supporting wheel 010 is engaged with the steel belt 007. A pushing mechanism 014 and a mounting bracket 017 are fixedly installed at one end of the racks 002 on both sides, and the first detection camera 011, the second detection camera 012, and the third detection camera 013 are installed on the pushing mechanism 014, and the fourth detection camera 015 and the fifth detection camera 016 are fixedly installed on the mounting bracket 017. The detection directions of the fourth detection camera 015 and the fifth detection camera 016 are opposite, and the pushing mechanism 014 adopts an electric slide rail to drive the first detection camera 011, the second detection camera 012 and the third detection camera 013 to move. In this configuration, the guide wheel 009 is used to correct the running direction of the steel belt 007 to prevent it from deviating and falling off from the rotating wheel 005, and the support wheel 010 is used to support the steel belt 007 to prevent it from bending due to its own gravity.

[0059] Example 2

[0060] like Figure 5As shown, in a specific embodiment, a screening assembly is provided between two mounting plates 004 at the same end. The screening assembly includes a power mechanism 018. Both sides of the power mechanism 018 are movably connected to the mounting plates 004 on both sides by plug rods. The top of the power mechanism 018 is in contact with the rotating wheel 005. A guide plate 019 is installed at one end of the power mechanism 018. The screening assembly controls the guide plate 019 to rotate to different angles through the power mechanism 018. The power mechanism 018 is composed of a servo motor and a base plate. In this configuration, when the pump head pump core passes the inspection, the power mechanism 018 drives the guide plate 019 to rotate to one side when the pump head pump core moves to the screening assembly, and causes the falling pump head pump core to slide along the guide plate 019 to one side. When the pump head pump core fails the inspection, the power mechanism 018 drives the guide plate 019 to rotate to the other side when the pump head pump core moves to the screening assembly, and causes the falling pump head pump core to slide along the guide plate 019 to the other side, thereby achieving screening of the pump head pump core.

[0061] like Figure 1 、 Figure 2 As shown, an adjustment mechanism 003 is mounted on the top of base 001. This mechanism comprises an adjustment handwheel and a screw, with a sleeve mounted on the outside of the screw. One end of the screw and one end of the sleeve are respectively connected to two frames 002. The adjustment handwheel rotates the screw to control the distance between the two frames 002. In this setup, the adjustment handwheel is rotated according to the size of the pump head and pump core, allowing adjustment mechanism 003 to control the movement of the two frames 002 and drive the steel belts 007 on both sides to precisely clamp the pump head and pump core.

[0062] Example 3

[0063] like Figures 6 to 12 As shown, a pump head and pump core steel strip structure detection system includes an adjustment unit, a detection unit and a sorting unit;

[0064] The adjustment unit is used to adjust the distance between the first detection camera 011, the second detection camera 012 and the third detection camera 013;

[0065] The detection unit is used to detect the images acquired by the first detection component and the second detection component and perform feature matching;

[0066] The sorting unit is used to sort the pump heads and pump cores according to the detection results of the detection unit.

[0067] The adjustment unit includes a speed acquisition strategy, which includes respectively acquiring the moving speeds V1 and V2 of the two steel belts 007 and the radius R of the cross section where the pump head pump core contacts the steel belt 007, thereby obtaining the speed V=(V1+V2) / 2 of the pump head pump core following the steel belt 007 and the angular velocity ω=|(V1-V2) / 2R| of the pump head pump core's rotation.

[0068] The adjustment unit also includes a position correction strategy. The position correction strategy obtains the distances between the first detection camera 011, the second detection camera 012, and the third detection camera 013 based on the pump head pump core movement speed V and the pump head pump core rotation angular speed ω obtained by the speed acquisition strategy. The position correction strategy also includes when the pump head pump core moves to the second detection camera 012, the rotation angle α=2π / 3+2nπ, and when it moves to the third detection camera 013, the rotation angle β=π / 3+2mπ, wherein n represents the number of full circles rotated when the pump head pump core moves to the second detection camera 012, and m represents the number of full circles rotated when the pump head pump core moves to the third detection camera 013. Both n and m are natural numbers, and m is greater than n. Based on this, the time t1 when the pump head pump core moves from the first detection camera 011 to the second detection camera 012 is obtained;

[0069] t1=(2π / 3+2nπ) / |(V1-V2) / 2R|;

[0070] Time t2 when the pump head and pump core move from the first detection camera 011 to the third detection camera 013;

[0071] t2=(π / 3+2mπ) / |(V1-V2) / 2R|;

[0072] The position correction strategy further includes obtaining the distance S1 between the first detection camera 011 and the second detection camera 012 based on the time taken for the pump head pump core to travel from the first detection camera 011 to the second detection camera 012 and the third detection camera 013;

[0073] S1=(2π / 3+2nπ)(V1+V2) / |(V1-V2) / R|;

[0074] The distance S2 between the second detection camera 012 and the third detection camera 013;

[0075] S2=[-π / 3+2(mn)π](V1+V2) / |((V1-V2) / R|;

[0076] The position correction strategy also includes controlling the driving mechanism 014 based on S1 and S2 to drive the second detection camera 012 and the third detection camera 013 to move, so that the pump head and pump core are in three different positions when passing by, to represent the detection component to detect the three different positions of the pump head and pump core, and by adjusting the speed of the two steel belts 007 to make S1 and S2 follow the changes to meet the requirements of different detection speeds.

[0077] The detection unit includes a side detection strategy, which includes acquiring a real-time side image when the pump head and pump core move to the first detection camera 011, the second detection camera 012, and the third detection camera 013, and extracting real-time side feature information based on the real-time side image. The detection unit is configured with a standard side image and standard side feature information, and performs feature matching on the extracted real-time side feature information and the standard side feature information, and establishes a side feature binary image based on the feature matching result;

[0078] The detection unit also includes an end detection strategy, which includes obtaining a real-time top image and a real-time bottom image through the fourth detection camera 015 and the fifth detection camera 016 when the pump head and pump core move to the fourth detection camera 015, and extracting top real-time feature information and bottom real-time feature information. The detection unit is configured with a standard top image and top standard feature information and a standard bottom image and bottom standard feature information, and performs feature comparison between the extracted top real-time feature information and the top standard feature information, and performs feature comparison between the extracted bottom real-time feature information and the bottom standard feature information, and establishes a top feature binary image and a bottom feature binary image according to the feature matching results.

[0079] The first detection component and the second detection component are both equipped with fill lights to fill light on the pump head and pump core when acquiring images;

[0080] Feature information includes edge information, corner information and texture information;

[0081] The side feature binary image, the top feature binary image, and the bottom feature binary image include black areas and white areas, wherein the black areas represent identical areas, and the white areas represent different areas.

[0082] The detection unit also includes a result evaluation strategy, which is configured with a standard evaluation value, indicating that the pump head and pump core are in a qualified state. The result evaluation strategy includes, after the third detection camera 013 obtains the real-time side image, executing an evaluation procedure on the side feature binary image, the top feature binary image, and the bottom feature binary image. The evaluation procedure includes obtaining the area of the difference area in the side feature binary image, the top feature binary image, and the bottom feature binary image, and calculating the ratio of the area in the difference area to the total area to obtain an actual evaluation value, and comparing the actual evaluation value with the standard evaluation value;

[0083] When the evaluation values of the side feature binary image, the top feature binary image, and the bottom feature binary image are all less than the standard evaluation values, it indicates that the pump head and pump core are qualified and a qualified instruction is generated; otherwise, it indicates that the pump head and pump core are unqualified and an unqualified instruction is generated.

[0084] The sorting unit includes a delay calculation strategy, which includes obtaining a horizontal distance X between the third detection camera 013 and the screening assembly, and calculating the time T = 2X / (V1 + V2) for the pump head and pump core to move from the third detection camera 013 to the screening assembly based on the movement speed of the pump head and pump core;

[0085] The sorting unit also includes a delayed sorting strategy, which includes an instruction control power mechanism 018 generated based on the result evaluation strategy;

[0086] When a qualified instruction is received, the delayed sorting strategy is to control the guide plate 019 to rotate through the power mechanism 018 after a time T, and the qualified pump heads and pump cores are sorted into the qualified area;

[0087] When an unqualified instruction is received, the delayed sorting strategy is to control the guide plate 019 to rotate in the opposite direction through the power mechanism 018 after a time T, so that the unqualified pump head and pump core are sorted into the unqualified area.

[0088] The implementation principle of the pump head pump core steel belt structure detection device and system of the present embodiment is as follows: before use, rotate the adjustment hand wheel according to the size of the pump head pump core, so that the adjustment mechanism 003 controls the movement of the two frames 002, and drives the steel belts 007 on both sides to just clamp the pump head pump core. At this time, start the driving mechanism 006, and the driving mechanism 006 drives the rotating wheel 005 to rotate, and the rotating wheel 005 drives the steel belt 007 to rotate, and the steel belt 007 drives the pump head pump core to move. Since the rotation speeds of the two driving mechanisms 006 are different, the rotation speeds of the two steel belts 007 are different. In the process of transporting the pump head pump core, the steel belt 007 causes the pump head pump core to rotate due to the speed difference. When the pump head pump core passes through the first detection component and the second detection component, the first detection component The fourth inspection camera 015 and the fifth inspection camera 016 in the second inspection component inspect the top and bottom of the pump head pump core, and the first inspection camera 011, the second inspection camera 012 and the third inspection camera 013 inspect the sides of the pump head pump core at different angles. When the pump head pump core passes the inspection, the power mechanism 018 drives the guide plate 019 to rotate to one side when the pump head pump core moves to the screening component, and causes the fallen pump head pump core to slide to one side along the guide plate 019. When the pump head pump core fails the inspection, the power mechanism 018 drives the guide plate 019 to rotate to the other side when the pump head pump core moves to the screening component, and causes the fallen pump head pump core to slide to the other side along the guide plate 019, thereby realizing screening of the pump head pump core.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pump head pump core steel belt structure detection system, applied to a pump head pump core steel belt structure detection device, the pump head pump core steel belt structure detection device comprising a base (001), a frame (002) being slidably mounted on the top of the base (001), a transport assembly being provided at both ends of the frame (002), the transport assembly comprising a rotating wheel (005), a steel belt (007) being meshedly connected to the outer side of the rotating wheel (005), and the transport assembly driving the steel belt (007) to transport the pump head pump core via the rotating wheel (005); The frame (002) is provided with a first detection component and a second detection component, respectively. The first detection component includes a first detection camera (011), a second detection camera (012), and a third detection camera (013). The second detection component includes a fourth detection camera (015) and a fifth detection camera (016). The first detection component is used to detect the side shape of the pump head and pump core, and the second detection component is used to detect the top and bottom shapes of the pump head and pump core. A bracket (008) is installed on the top of each of the racks (002), a guide wheel (009) is installed on the top of the bracket (008), a supporting wheel (010) is installed on the side of the bracket (008), and the supporting wheel (010) is engaged with the steel belt (007). A pushing mechanism (014) and a mounting bracket (017) are fixedly installed on one end of the racks (002) on both sides, respectively. The first detection camera (011), the second detection camera (012), and the third detection camera (013) are installed on the pushing mechanism (014), and the fourth detection camera (015) and the fifth detection camera (016) are fixedly installed on the mounting bracket (017). The detection directions of the fourth detection camera (015) and the fifth detection camera (016) are opposite; It is characterized by: The pump head and pump core steel strip structure detection system includes an adjustment unit, a detection unit and a sorting unit; The adjustment unit is used to adjust the distance between the first detection camera (011), the second detection camera (012), and the third detection camera (013); The detection unit is used to detect the images acquired by the first detection component and the second detection component, and perform feature matching; The sorting unit is used to sort the pump heads and pump cores according to the detection results of the detection unit; The adjustment unit includes a speed acquisition strategy, which includes respectively acquiring the moving speeds V1 and V2 of the two steel belts (007), and acquiring the radius R of the cross section where the pump head pump core and the steel belt (007) are in contact, and obtaining the speed V=(V1+V2) / 2 at which the pump head pump core moves following the steel belt (007), and the angular velocity ω=|(V1-V2) / 2R| of the pump head pump core's rotation; The adjustment unit further includes a position correction strategy, wherein the position correction strategy obtains the distances between the first detection camera (011), the second detection camera (012), and the third detection camera (013) based on the pump head pump core movement speed V and the pump head pump core rotation angular speed ω obtained by the speed acquisition strategy, and the position correction strategy further includes rotating the pump head pump core at an angle α=2π / 3+2nπ when the pump head pump core moves to the second detection camera (012), and rotating the pump head pump core at an angle β=π / 3+2mπ when the pump head pump core moves to the third detection camera (013), wherein n represents the number of full circles rotated when the pump head pump core moves to the second detection camera (012), and m represents the number of full circles rotated when the pump head pump core moves to the third detection camera (013), and based on this, the time t1 when the pump head pump core moves from the first detection camera (011) to the second detection camera (012) is obtained; t1=(2π / 3+2nπ) / |(V1-V2) / 2R|, Time t2 when the pump head and pump core move from the first detection camera (011) to the third detection camera (013); t2=(π / 3+2mπ) / |(V1-V2) / 2R|, The position correction strategy further includes obtaining a distance S1 between the first detection camera (011) and the second detection camera (012) based on the time it takes for the pump head pump core to travel from the first detection camera (011) to the second detection camera (012) and the third detection camera (013); S1=(2π / 3+2nπ)(V1+V2) / |(V1-V2) / R|, A distance S2 between the second detection camera (012) and the third detection camera (013); S2=[-π / 3+2(mn)π](V1+V2) / |((V1-V2) / R|; The position correction strategy further includes controlling the driving mechanism (014) based on S1 and S2 to drive the second detection camera (012) and the third detection camera (013) to move, so that the pump head and pump core are in three different orientations when passing by, so as to represent that the detection component detects the pump head and pump core in three different orientations; The frame (002) and its connecting parts are both provided with two symmetrically distributed ones, and a mounting plate (004) is fixedly mounted on both ends of each frame (002), one end of the rotating wheel (005) is rotatably connected to the mounting plate (004), and a driving mechanism (006) is fixedly mounted on one side of the mounting plate (004), and an output end of the driving mechanism (006) is fixedly connected to the rotating wheel (005).

2. A pump head and pump core steel strip structure detection system according to claim 1, characterized in that: A screening assembly is provided between the two mounting plates (004) located at the same end. The screening assembly comprises a power mechanism (018). Both sides of the power mechanism (018) are movably connected to the mounting plates (004) on both sides through plug rods. The top of the power mechanism (018) is in contact with the rotating wheel (005). A guide plate (019) is installed at one end of the power mechanism (018). The screening assembly controls the guide plate (019) to rotate to different angles through the power mechanism (018).

3. A pump head and pump core steel strip structure detection system according to claim 1, characterized in that: An adjustment mechanism (003) is installed on the top of the base (001), and the adjustment mechanism (003) includes an adjustment handwheel and a screw rod. A sleeve is installed on the outside of the screw rod. One end of the screw rod and one end of the sleeve are respectively connected to the two frames (002). The adjustment handwheel drives the screw rod to rotate to control the distance between the two frames (002).

4. A pump head and pump core steel strip structure detection system according to claim 3, characterized in that: The detection unit includes a side detection strategy, which includes acquiring a real-time side image when the pump head and pump core move to the first detection camera (011), the second detection camera (012), and the third detection camera (013), and extracting side real-time feature information based on the real-time side image. The detection unit is configured with a standard side image and side standard feature information, and performs feature matching on the extracted side real-time feature information and the side standard feature information, and establishes a side feature binary image based on the result of the feature matching; The detection unit also includes an end detection strategy, which includes obtaining a real-time top image and a real-time bottom image through the fourth detection camera (015) and the fifth detection camera (016) when the pump head and pump core move to the fourth detection camera (015), and extracting top real-time feature information and bottom real-time feature information. The detection unit is configured with a standard top image and top standard feature information and a standard bottom image and bottom standard feature information, and performs feature comparison between the extracted top real-time feature information and the top standard feature information, and performs feature comparison between the extracted bottom real-time feature information and the bottom standard feature information, and establishes a top feature binary image and a bottom feature binary image respectively according to the result of feature matching.

5. A pump head and pump core steel strip structure detection system according to claim 4, characterized in that: The detection unit also includes a result evaluation strategy, the result evaluation strategy is configured with a standard evaluation value, which characterizes that the pump head and pump core are in a qualified state, the result evaluation strategy includes executing an evaluation program on the side feature binary image, the top feature binary image, and the bottom feature binary image after the third detection camera (013) acquires a real-time side image, the evaluation program includes acquiring the area of the difference area in the side feature binary image, the top feature binary image, and the bottom feature binary image, and calculating the ratio of the area in the difference area to the total area to obtain an actual evaluation value, and comparing the actual evaluation value with the standard evaluation value; When the evaluation values of the side feature binary image, the top feature binary image, and the bottom feature binary image are all less than the standard evaluation values, it indicates that the pump head and pump core are qualified and a qualified instruction is generated; otherwise, it indicates that the pump head and pump core are unqualified and an unqualified instruction is generated.

6. A pump head and pump core steel strip structure detection system according to claim 5, characterized in that: The sorting unit includes a delay calculation strategy, which includes obtaining a horizontal distance X between the third detection camera (013) and the screening component, and calculating the time T = 2X / (V1 + V2) for the pump head and pump core to move from the third detection camera (013) to the screening component based on the moving speed of the pump head and pump core; The sorting unit further includes a delayed sorting strategy, wherein the delayed sorting strategy includes an instruction control power mechanism (018) generated based on the result evaluation strategy; When a qualified instruction is received, the delayed sorting strategy is to control the guide plate (019) to rotate through the power mechanism (018) after a time T, so that the qualified pump head and pump core are sorted into the qualified area; When an unqualified instruction is received, the delayed sorting strategy is to control the guide plate (019) to rotate in the opposite direction through the power mechanism (018) after a time T, so that the unqualified pump head and pump core are sorted into the unqualified area.

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