High-pressure pump screw detection device based on visual identification

Abstract

The invention relates to a high-pressure pump screw detection device based on visual identification, which comprises a detection platform and an industrial camera, the industrial camera is arranged on the detection platform, the high-pressure pump screw detection device further comprises a rotary clamping device, a lens switching mechanism, a driving mechanism and a controller, and the rotary clamping device comprises a lifting platform and a plurality of rotary clamping discs; the lifting table is slidably connected to the detection platform in the vertical direction, a protection frame is arranged on the detection platform, the multiple rotary clamping discs are rotationally connected to the protection frame, the multiple rotary clamping discs are slidably connected to the protection frame, and the driving mechanism is used for driving the lifting table and the multiple rotary clamping discs to move. The controller controls the lifting table and the rotary clamping disc to move respectively. After the lifting table ascends, the rotary clamping disc moves to clamp the high-pressure pump, and after the lifting table descends, the rotary clamping disc drives the high-pressure pump to rotate. The high-pressure pump can be flexibly clamped and rotated, and an industrial camera can conveniently detect screws on the high-pressure pump from different angles.

Description

Technical Field

[0001] The present invention relates to the field of screw detection devices, and particularly to a high-pressure pump screw detection device based on visual recognition. Background Art

[0002] The high-pressure pump screw detection device based on visual recognition mainly consists of visual imaging, image analysis and processing, a detection platform and a control system. The high-pressure pump is placed at the detection position of the detection platform. The visual imaging system takes pictures of the screws on the high-pressure pump under the trigger of the control system. The captured images are transmitted to the image analysis and processing system.

[0003] The prior art has the following problems: During the detection process, the industrial camera can only take pictures of one orientation at a time. It is necessary to manually adjust the position of the high-pressure pump to take pictures and detect other positions. Moreover, some curved surface positions face down and are not easy to stand on, and manual assistance is required, but it is still easy to cause blurred pictures, resulting in difficulties in detecting the screws on the high-pressure pump in multiple orientations. Summary of the Invention

[0004] In order to facilitate the multi-orientation detection of the screws on the high-pressure pump, the present application provides a high-pressure pump screw detection device based on visual recognition.

[0005] The high-pressure pump screw detection device based on visual recognition provided by the present application adopts the following technical solutions: A high-pressure pump screw detection device based on visual recognition includes a detection platform and an industrial camera. The industrial camera is arranged on the detection platform. It further includes a rotary clamping device for moving the high-pressure pump, a lens switching mechanism for switching the focal length of the lens, a driving mechanism and a controller. The rotary clamping device includes a lifting platform for placing the high-pressure pump and a plurality of rotary clamping disks. The lifting platform is slidably connected to the detection platform in the vertical direction. A protective frame is arranged on the detection platform. A plurality of the rotary clamping disks are respectively rotatably connected to the protective frame along the axial direction perpendicular to the lifting platform, and a plurality of the rotary clamping disks are respectively slidably connected to the protective frame along their rotation directions. The driving mechanism is used to drive the movement of the lifting platform and a plurality of the rotary clamping disks respectively. The controller is used to control the respective movements of the lifting platform and the rotary clamping disks. When the lifting platform rises, two relatively moving rotary clamping disks move to clamp the high-pressure pump. When the lifting platform descends, two relatively moving rotary clamping disks drive the high-pressure pump to rotate.

[0006] By adopting the above technical solution, the detection device integrates a rotary clamping device, a lens switching mechanism, a driving mechanism and a controller, forming a relatively complete high-pressure pump screw detection system, which improves the automation degree and accuracy of detection. The lifting table and the rotary clamping disc of the rotary clamping device cooperate with each other, and can flexibly clamp and rotate the high-pressure pump, facilitating the industrial camera to detect the screws on the high-pressure pump from different angles. The driving mechanism provides power for the movement of the lifting table and the rotary clamping disc, while the controller realizes precise control of their movement, making the detection process proceed orderly.

[0007] Preferably, the lens switching mechanism includes a rotating disc and a plurality of lenses. The rotating disc is rotatably connected to the protective frame. The plurality of lenses are respectively fixedly connected to the rotating disc, and the focal lengths of the plurality of lenses are different. The driving mechanism is also used to drive the rotation of the rotating disc. When the high-pressure pump rotates to different angles facing the industrial camera, the rotating disc rotates different lenses to be coaxial with the industrial camera.

[0008] By adopting the above technical solution, through the lens switching mechanism, it is possible to switch lenses with different focal lengths according to different detection angles and positions of the high-pressure pump, thereby improving the clarity and accuracy of the images captured by the industrial camera and further enhancing the detection effect. When the high-pressure pump rotates to different angles facing the industrial camera, the rotating disc rotates different lenses to be coaxial with the industrial camera, enabling the industrial camera to capture images of the high-pressure pump screws at the optimal focal length, facilitating subsequent visual recognition.

[0009] Preferably, the driving assembly includes a gear ring, a plurality of bevel gears and a connecting shaft. The gear ring is rotatably connected to the protective frame. The inner ring and the outer ring of the gear ring are straight teeth and bevel teeth respectively. The connecting shaft is rotatably connected to the protective frame. Straight-tooth gears are respectively provided at both ends of the connecting shaft. A second gear is provided on the rotating disc. The straight-tooth gears at both ends of the connecting shaft are respectively meshed and connected with the straight teeth on the gear ring and the second gear. The plurality of bevel gears are respectively rotatably connected to the protective frame. The plurality of bevel gears are respectively meshed and connected with the bevel teeth on the gear ring. The plurality of bevel gears respectively correspond to a plurality of rotary clamping discs, and the plurality of bevel gears are used to drive the rotation of the corresponding rotary clamping discs.

[0010] By adopting the above technical solution, the driving assembly adopts a structural design of a gear ring, bevel gears and a connecting shaft, realizing the movement of a driving source to drive the rotating disc and multiple rotary clamping discs at the same time, simplifying the structure of the driving system, reducing the equipment cost and the maintenance difficulty; the inner ring and the outer ring of the gear ring are respectively meshed with the connecting shaft and the bevel gears, and the power is transmitted to the rotating disc through the connecting shaft to realize the switching of the lenses; at the same time, the bevel gears transmit the power to the rotary clamping discs to realize the rotation of the high-pressure pump; this transmission method enables the movements of the rotating disc and the rotary clamping discs to be coordinated with each other, ensuring the smooth progress of the detection process.

[0011] Preferably, connecting rods are coaxially and fixedly connected to several of the rotary clamping disks respectively. The several connecting rods are respectively inserted through and slidably connected to the bevel gears, and the axial cross-sections of the several connecting rods are polygonal.

[0012] By adopting the above technical solution, the connecting rods on the rotary clamping disks are inserted through and slidably connected to the bevel gears, and the axial cross-sections are polygonal, which not only ensures that the rotary clamping disks can rotate with the rotation of the bevel gears, but also can slide in the axial direction to realize the clamping and loosening actions of the high-pressure pump; when it is necessary to clamp the high-pressure pump, the rotary clamping disk can move axially closer to the high-pressure pump; when it is necessary to rotate the high-pressure pump, the rotary clamping disk can rotate with the bevel gear to drive the high-pressure pump to rotate, facilitating detection from different angles.

[0013] Preferably, the driving assembly further includes a first electric cylinder, several second electric cylinders and a first motor. The first electric cylinder is arranged on the detection platform and is used to drive the movement of the lifting table. The several second electric cylinders respectively correspond to the several rotary clamping disks. The several second electric cylinders are respectively arranged on the protective frame. One end of the output shaft of each of the several second electric cylinders is provided with a sliding plate. The end of the connecting rod far from the rotary clamping disk is rotatably connected to the corresponding sliding plate. The first motor is fixedly connected to the detection platform, and one end of the output shaft of the first motor is fixedly connected to the connecting shaft.

[0014] By adopting the above technical solution, the first electric cylinder, the second electric cylinders and the first motor in the driving assembly respectively realize the lifting of the lifting table, the movement of the rotary clamping disks and the rotation of the rotating disk. Each component has a clear division of labor and can realize the precise operation and control of the high-pressure pump; the first electric cylinder drives the movement of the lifting table to control the height position of the high-pressure pump, facilitating the clamping of the high-pressure pump by the rotary clamping disk; the second electric cylinders drive the movement of the rotary clamping disks to realize the clamping and loosening of the high-pressure pump; the first motor drives the ring gear to rotate through the spur gears, thereby driving the rotation of the rotating disk and the rotary clamping disks.

[0015] Preferably, a first profiling surface that can cooperate with the high-pressure pump is provided on the placement table, and a rubber pad is provided on the placement table.

[0016] By adopting the above technical solution, when the high-pressure pump is placed on the placement table, the first profiling surface can guide the high-pressure pump to accurately reach the preset position, enabling the high-pressure pump to be quickly and accurately positioned, preparing for the subsequent detection process. The rubber pad has good elasticity and buffering performance. When the high-pressure pump is placed on the placement table, it can absorb and buffer the impact force, reducing the collision and vibration between the high-pressure pump and the placement table. And it can increase the friction force with the bottom of the high-pressure pump. This further enhances the stability of the high-pressure pump on the placement table.

[0017] Preferably, a second profiling surface that can cooperate with a high-pressure pump is provided on each of several of the rotating clamping disks, and anti-slip patterns are provided on each of the second profiling surfaces.

[0018] By adopting the above technical solution, since the second profiling surface matches the outer shape of the high-pressure pump, it can fit precisely according to the specific shape of the high-pressure pump; enabling the rotating clamping disk to accurately clamp the high-pressure pump, avoiding the shaking or displacement of the high-pressure pump during the detection process due to inaccurate clamping, thereby improving the accuracy and stability of the detection; the presence of the anti-slip patterns significantly increases the friction force between the rotating clamping disk and the surface of the high-pressure pump. When the rotating clamping disk clamps the high-pressure pump, the increase in the friction force can effectively prevent the high-pressure pump from sliding during rotation.

[0019] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention integrates a rotating clamping device, a lens switching mechanism, a driving mechanism, and a controller to form a relatively complete high-pressure pump screw detection system, improving the automation degree and accuracy of detection. The lifting platform and the rotating clamping disk of the rotating clamping device cooperate with each other, enabling the high-pressure pump to be clamped and rotated flexibly, facilitating the industrial camera to detect the screws on the high-pressure pump from different angles. The driving mechanism provides power for the movement of the lifting platform and the rotating clamping disk, while the controller realizes precise control of their movement, making the detection process proceed orderly; 2. The present invention can switch lenses with different focal lengths according to different detection angles and positions of the high-pressure pump through the lens switching mechanism, thereby improving the clarity and accuracy of the images captured by the industrial camera and further enhancing the detection effect. When the high-pressure pump rotates to different angles facing the industrial camera, the rotating disk rotates different lenses to be coaxial with the industrial camera, enabling the industrial camera to capture images of the high-pressure pump screws at the best focal length for subsequent visual recognition; 3. The driving component of the present invention adopts a structural design of a gear ring, bevel gears, and a connecting shaft, realizing the movement of driving the rotating disk and multiple rotating clamping disks with one driving source, simplifying the structure of the driving system, reducing the equipment cost and maintenance difficulty; the inner and outer rings of the gear ring are respectively meshed with the connecting shaft and the bevel gears, and the power is transmitted to the rotating disk through the connecting shaft to realize the switching of the lens; at the same time, the bevel gears transmit the power to the rotating clamping disk to realize the rotation of the high-pressure pump; this transmission method enables the movement of the rotating disk and the rotating clamping disk to be coordinated with each other, ensuring the smooth progress of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0021] Figure 2 is a schematic diagram of the structure of the detection platform of an embodiment of the present application.

[0022] Figure 3 It is a schematic structural diagram of the driving mechanism according to an embodiment of the present application.

[0023] Figure 4 It is a schematic structural diagram of the rotary clamping device according to an embodiment of the present application.

[0024] Figure 5 It is a schematic structural diagram of the lens switching mechanism according to an embodiment of the present application.

[0025] Explanation of reference numerals: 1, detection platform; 2, industrial camera; 3, rotary clamping device; 4, lens switching mechanism; 5, driving mechanism; 6, controller; 8, lifting platform; 9, rotary clamping disc; 10, protective frame; 11, lens; 12, rotating disc; 13, gear ring; 14, bevel gear; 15, connecting shaft; 16, spur gear; 17, second gear; 18, connecting rod; 20, second electric cylinder; 21, first motor; 22, sliding plate; 23, first profiling surface; 24, rubber pad; 25, second profiling surface. Detailed implementation manners

[0026] The following will further elaborate on the present application in conjunction with the attached Figures 1-5 to make the technical solution of the present application easier to understand and master.

[0027] An embodiment of the present application discloses a high-pressure pump screw detection device based on visual recognition.

[0028] Referring to Figure 1 and Figure 2 , a high-pressure pump screw detection device based on visual recognition in this embodiment includes a detection platform 1 and an industrial camera 2. The industrial camera 2 is arranged on the detection platform 1. It further includes a rotary clamping device 3 for moving the high-pressure pump, a lens switching mechanism 4 for switching the focal length of the lens 11, a driving mechanism 5, and a controller 6. The rotary clamping device 3 includes a lifting platform 8 for placing the high-pressure pump and four rotary clamping discs 9. The lifting platform 8 is slidably connected to the detection platform 1 in the vertical direction. A protective frame 10 is fixedly connected to the detection platform 1. The four rotary clamping discs 9 are respectively rotatably connected to the protective frame 10 along the axis direction perpendicular to the lifting platform 8, and the four rotary clamping discs 9 are respectively slidably connected to the protective frame 10 along their rotation directions. The four rotary clamping discs 9 are divided into two groups in pairs. The sliding directions of the two rotary clamping discs 9 in the same group are arranged oppositely. When the two rotary clamping discs 9 in the same group slide simultaneously to abut against the high-pressure pump, the two rotary clamping discs 9 in the same group clamp the high-pressure pump; the driving mechanism 5 is used to drive the movement of the lifting platform 8 and the four rotary clamping discs 9 respectively, and the controller 6 is used to control the respective movements of the lifting platform 8 and the rotary clamping discs 9; when the lifting platform 8 rises, the two relatively moving rotary clamping discs 9 move to clamp the high-pressure pump, and when the lifting platform 8 descends, the two relatively moving rotary clamping discs 9 drive the high-pressure pump to rotate.

[0029] Refer to Figure 1 Good and Figure 2 , the detection device integrates a rotary clamping device 3, a lens 11 switching mechanism 4, a driving mechanism 5 and a controller 6 to form a relatively complete high-pressure pump screw detection system, improving the automation and accuracy of detection. The lifting table 8 and the rotary clamping disk 9 of the rotary clamping device 3 cooperate with each other to be able to clamp and rotate the high-pressure pump flexibly, facilitating the industrial camera 2 to detect the screws on the high-pressure pump from different angles. The driving mechanism 5 provides power for the movement of the lifting table 8 and the rotary clamping disk 9, while the controller 6 realizes precise control of their movement, making the detection process proceed orderly.

[0030] Refer to Figure 3 And Figure 5 , the lens 11 switching mechanism 4 includes a rotating disk 12 and a plurality of lenses 11. The rotating disk 12 is rotatably connected to the protective frame 10 in the vertical direction. The plurality of lenses 11 are respectively fixedly connected to the rotating disk 12. The plurality of lenses 11 are evenly distributed around the central axis of the rotating disk 12, and the focal lengths of the plurality of lenses 11 are different. The driving mechanism 5 is also used to drive the rotation of the rotating disk 12. When the high-pressure pump rotates to different angles facing the industrial camera 2, the rotating disk 12 rotates different lenses 11 to be coaxial with the industrial camera 2. Through the lens 11 switching mechanism 4, different lenses 11 with different focal lengths can be switched according to different detection angles and positions of the high-pressure pump, thereby improving the clarity and accuracy of the images captured by the industrial camera 2 and further enhancing the detection effect. When the high-pressure pump rotates to different angles facing the industrial camera 2, the rotating disk 12 rotates different lenses 11 to be coaxial with the industrial camera 2, enabling the industrial camera 2 to capture images of the high-pressure pump screws at the best focal length for subsequent visual recognition.

[0031] Refer to Figure 3 And Figure 4 , the driving assembly includes a gear ring 13, four bevel gears 14 and a connecting shaft 15. The gear ring 13 is rotatably connected to the protective frame 10. The inner ring of the gear ring 13 is a straight gear tooth and the outer ring is a bevel gear tooth respectively. The connecting shaft 15 is rotatably connected to the protective frame 10. The two ends of the connecting shaft 15 are respectively coaxially and fixedly connected with straight-tooth gears 16. The rotating disk 12 is coaxially and fixedly connected with a second gear 17. The straight-tooth gears 16 at both ends of the connecting shaft 15 are respectively meshed and connected with the straight tooth on the gear ring 13 and the second gear 17. The four bevel gears 14 are respectively rotatably connected to the protective frame 10. The four bevel gears 14 are respectively meshed with the bevel teeth on the gear ring 13. The four bevel gears 14 respectively correspond to the four rotary clamping disks 9. The four bevel gears 14 are used to drive the rotation of the corresponding rotary clamping disks 9.

[0032] Refer to Figure 3 And Figure 4, the drive assembly adopts the structural design of a gear ring 13, bevel gears 14 and a connecting shaft 15, which realizes the movement of a driving source to drive the rotating disk 12 and multiple rotating clamping disks 9 at the same time, simplifies the structure of the drive system, and reduces the equipment cost and maintenance difficulty; the inner and outer rings of the gear ring 13 are respectively meshed with the connecting shaft 15 and the bevel gears 14, and the power is transmitted to the rotating disk 12 through the connecting shaft 15 to realize the switching of the lens 11; at the same time, the bevel gears 14 transmit the power to the rotating clamping disks 9 to realize the rotation of the high-pressure pump; this transmission method enables the movements of the rotating disk 12 and the rotating clamping disks 9 to be coordinated with each other, ensuring the smooth progress of the detection process.

[0033] Refer to Figure 3 and Figure 4 , connecting rods 18 are coaxially and fixedly connected to the four rotating clamping disks 9 respectively. The four connecting rods 18 are respectively inserted and slidably connected to the bevel gears 14 along the axis of the bevel gears 14, and the axial cross-sections of the four connecting rods 18 are polygonally arranged. The connecting rods 18 on the rotating clamping disks 9 are inserted and slidably connected to the bevel gears 14, and the axial cross-sections are polygonally arranged, which not only ensures that the rotating clamping disks 9 can rotate with the rotation of the bevel gears 14, but also can slide in the axial direction to realize the clamping and loosening actions of the high-pressure pump; when the high-pressure pump needs to be clamped, the rotating clamping disks 9 can move axially closer to the high-pressure pump; when the high-pressure pump needs to be rotated, the rotating clamping disks 9 can rotate with the bevel gears 14 to drive the high-pressure pump to rotate, facilitating detection from different angles.

[0034] Refer to Figure 2 and Figure 3, the driving assembly further includes a first electric cylinder, four second electric cylinders 20 and a first motor 21. The first electric cylinder is fixedly connected inside the detection platform 1, and one end of the output shaft of the first electric cylinder is fixedly connected to the lifting platform 8. The first electric cylinder is used to drive the movement of the lifting platform 8. The four second electric cylinders 20 respectively correspond to the four rotating clamping disks 9. The four second electric cylinders 20 are respectively fixedly connected to the protective frame 10. One end of the output shaft of each of the four second electric cylinders 20 is fixedly connected with a sliding plate 22. One end of the connecting rod 18 away from the rotating clamping disk 9 is rotatably connected to the corresponding sliding plate 22. The first motor 21 is fixedly connected to the detection platform 1, and one end of the output shaft of the first motor 21 is coaxially and fixedly connected to the connecting shaft 15. The first electric cylinder, the second electric cylinder 20 and the first motor 21 in the driving assembly respectively realize the lifting of the lifting platform 8, the movement of the rotating clamping disk 9 and the rotation of the rotating disk 12. Each component has a clear division of labor and can realize the precise operation and control of the high-pressure pump. The first electric cylinder drives the movement of the lifting platform 8 to control the height position of the high-pressure pump, facilitating the clamping of the rotating clamping disk 9. The second electric cylinder 20 drives the movement of the rotating clamping disk 9 to realize the clamping and loosening of the high-pressure pump. The first motor 21 drives the gear ring 13 to rotate through the straight-tooth gear 16, thereby driving the rotation of the rotating disk 12 and the rotating clamping disk 9.

[0035] Refer to Figure 2 and Figure 3 , the placement table is provided with a first profiling surface 23 that can cooperate with the high-pressure pump, and a rubber pad 24 is provided on the placement table; each of the four rotating clamping disks 9 is provided with a second profiling surface 25 that can cooperate with the high-pressure pump, and anti-slip patterns are respectively provided on the four second profiling surfaces 25. The first profiling surface 23 on the placement table and the second profiling surface 25 on the rotating clamping disk 9 can better cooperate with the outer shape of the high-pressure pump, improving the clamping stability of the high-pressure pump. The anti-slip patterns on the second profiling surface 25 further enhance the clamping force, preventing the high-pressure pump from sliding during rotation and ensuring the accuracy of detection. The rubber pad 24 has good elasticity and buffering performance. When the high-pressure pump is placed on the placement table, it can absorb and buffer the impact force, reducing the collision and vibration between the high-pressure pump and the placement table. And it can increase the friction force with the bottom of the high-pressure pump. This further enhances the stability of the high-pressure pump on the placement table. The design of the first profiling surface 23 and the second profiling surface 25 enables the high-pressure pump to maintain a stable position and posture during the detection process, and the anti-slip patterns increase the friction force, ensuring that the high-pressure pump does not displace during rotation, so that the industrial camera 2 can accurately capture the image of the high-pressure pump screw.

[0036] Refer to Figures 1-5 , in summary, the following is a summary of the detection sequence of the high-pressure pump screw detection device based on visual recognition, which is developed according to the process steps and technical collaboration logic: S1. Placement and initial positioning of the high-pressure pump: The operator places the high-pressure pump to be detected on the lifting table 8 of the rotary clamping device 3. Since the placing table is provided with a first profiling surface 23 that matches the high-pressure pump, the high-pressure pump can be preliminarily and stably positioned on the lifting table 8.

[0037] S2. Clamping of the high-pressure pump: The controller 6 controls the first electric cylinder to start. The output shaft of the first electric cylinder pushes the lifting table 8 to rise in the vertical direction, so that the high-pressure pump reaches an appropriate height.

[0038] Next, the controller 6 controls the four second electric cylinders 20 to act, and each second electric cylinder 20 corresponds to a rotary clamping disc 9. The two rotary clamping discs 9 in the same group slide relatively along the direction perpendicular to the axis of the lifting table 8 under the drive of the second electric cylinder 20 until the second profiling surfaces 25 on the two rotary clamping discs 9 abut against the high-pressure pump. Since the second profiling surface 25 is provided with anti-slip lines, the clamping force on the high-pressure pump can be enhanced, and the high-pressure pump is stably clamped.

[0039] S3. Initial image shooting and focal length adjustment: The industrial camera 2 starts to work and preliminarily shoots the screws on the high-pressure pump. Before shooting, the first motor 21 in the driving mechanism 5 starts, and the output shaft of the first motor 21 drives the spur gear 16 to rotate. The spur gear 16 meshes with the gear ring 13 to drive the gear ring 13 to rotate.

[0040] When the gear ring 13 rotates, the bevel gears 14 on its outer ring drive the four bevel gears 14 to rotate. The spur gears on the inner ring drive the second gear 17 on the rotating disc 12 to rotate through the spur gears 16 at both ends of the connecting shaft 15, and then the rotating disc 12 rotates. The rotating disc 12 rotates the lens 11 with an appropriate focal length to be coaxial with the industrial camera 2 according to the current position of the high-pressure pump and the detection requirements, and the industrial camera 2 shoots the image of the high-pressure pump screw with the best focal length.

[0041] S4. Multi-angle image shooting: After shooting the image at the initial angle, the controller 6 controls the first electric cylinder to lower the lifting table 8. At this time, the four rotary clamping discs 9 start to rotate driven by the corresponding bevel gears 14. Due to the special connection method of the connecting rod 18 on the rotary clamping disc 9 and the bevel gear 14 (the connecting rod 18 passes through and is slidably connected along the axis of the bevel gear 14, and the axial cross-section is polygonal), the rotary clamping disc 9 drives the high-pressure pump to rotate together.

[0042] During the rotation of the high-pressure pump, every time it rotates to a preset angle, the rotating disc 12 will switch the lens 11 with a different focal length to be coaxial with the industrial camera 2 under the action of the driving mechanism 5, and the industrial camera 2 continuously shoots the images of the high-pressure pump screws at different angles to ensure that the information of the screws can be obtained comprehensively.

[0043] S5. Image Analysis and Judgment of Detection Results: The industrial camera 2 transmits a series of captured images to the connected image processor; the image processor processes and analyzes the images, identifies information such as the position, quantity, and tightening status of the screws, and compares the analysis results with the pre-stored standard images and parameter information; if there are problems such as missing, loose, or incorrectly installed screws, the image processor feeds back the detection results to the controller 6.

[0044] S6. End of Detection and Release of High-Pressure Pump: After completing the image capture and analysis at all preset angles, the controller 6 controls the second electric cylinder 20 to release the clamping of the high-pressure pump by the rotary clamping disc 9.

[0045] The first electric cylinder drives the lifting platform 8 to descend to the initial position, and the operator can remove the detected high-pressure pump from the lifting platform 8.

[0046] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. A high-pressure pump screw detection device based on visual recognition, comprising a detection platform (1) and an industrial camera (2), the industrial camera (2) is arranged on the detection platform (1), and is characterized in that: It also includes a rotary clamping device (3) for moving the high-pressure pump, a lens (11) switching mechanism (4) for switching the focal length of the lens (11), a driving mechanism (5) and a controller (6). The rotary clamping device (3) includes a lifting platform (8) for placing the high-pressure pump and a number of rotary clamping disks (9). The lifting platform (8) is slidably connected to the detection platform (1) in the vertical direction. A protective frame (10) is provided on the detection platform (1). The number of rotary clamping disks (9) are respectively rotatably connected to the protective frame (10) along the direction perpendicular to the axis of the lifting platform (8), and the number of rotary clamping disks (9) are respectively slidably connected to the protective frame (10) along their rotation directions. The driving mechanism (5) is used to drive the movement of the lifting platform (8) and the number of rotary clamping disks (9) respectively. The controller (6) is used to control the respective movements of the lifting platform (8) and the rotary clamping disks (9). When the lifting platform (8) rises, the two relatively moving rotary clamping disks (9) move to clamp the high-pressure pump. When the lifting platform (8) descends, the two relatively moving rotary clamping disks (9) drive the high-pressure pump to rotate.

2. The high-pressure pump screw detection device based on visual recognition according to claim 1, characterized in that: The lens (11) switching mechanism (4) includes a rotating disk (12) and a number of lenses (11). The rotating disk (12) is rotatably connected to the protective frame (10). The number of lenses (11) are respectively fixedly connected to the rotating disk (12), and the focal lengths of the number of lenses (11) are different. The driving mechanism (5) is also used to drive the rotation of the rotating disk (12). When the high-pressure pump rotates to different angles facing the industrial camera (2), the rotating disk (12) rotates different lenses (11) to be coaxial with the industrial camera (2).

3. The screw detection device for high-pressure pumps based on visual recognition according to claim 2, wherein: The driving assembly includes a toothed ring (13), a number of bevel gears (14) and a connecting shaft (15). The toothed ring (13) is rotatably connected to the protective frame (10). The inner and outer circles of the toothed ring (13) are straight teeth and bevel teeth respectively. The connecting shaft (15) is rotatably connected to the protective frame (10). Straight-tooth gears (16) are respectively provided at both ends of the connecting shaft (15). A second gear (17) is provided on the rotating disk (12). The straight-tooth gears (16) at both ends of the connecting shaft (15) are respectively meshed and connected to the straight teeth on the toothed ring (13) and the second gear (17). The number of bevel gears (14) are respectively rotatably connected to the protective frame (10). The number of bevel gears (14) are respectively meshed and connected to the bevel teeth on the toothed ring (13). The number of bevel gears (14) respectively correspond to the number of rotary clamping disks (9). The number of bevel gears (14) are used to drive the rotation of the corresponding rotary clamping disks (9).

4. The screw detection device for high-pressure pumps based on visual recognition according to claim 3, wherein: Connecting rods (18) are respectively coaxially and fixedly connected to the number of rotary clamping disks (9). The number of connecting rods (18) respectively pass through and are slidably connected to the bevel gears (14), and the axial cross-sections of the number of connecting rods (18) are polygonally arranged.

5. The screw detection device for a high-pressure pump based on visual recognition according to claim 4, characterized in that: The driving assembly further includes a first electric cylinder, a plurality of second electric cylinders (20) and a first motor (21). The first electric cylinder is arranged on the detection platform (1), and the first electric cylinder is used to drive the movement of the lifting table (8). The plurality of second electric cylinders (20) respectively correspond to a plurality of rotary clamping discs (9). The plurality of second electric cylinders (20) are respectively arranged on the protective frame (10). One ends of the output shafts of the plurality of second electric cylinders (20) are respectively provided with sliding plates (22). One end of the connecting rod (18) far from the rotary clamping disc (9) is rotatably connected to the corresponding sliding plate (22). The first motor (21) is fixedly connected to the detection platform (1), and one end of the output shaft of the first motor (21) is fixedly connected to the connecting shaft (15).

6. The screw detection device for high-pressure pumps based on visual recognition according to claim 1, characterized in that: The placing table is provided with a first profiling surface (23) that can cooperate with the high-pressure pump, and a rubber pad (24) is provided on the placing table.

7. The screw detection device for high-pressure pumps based on visual recognition according to claim 6, characterized in that: The plurality of rotary clamping discs (9) are respectively provided with second profiling surfaces (25) that can cooperate with the high-pressure pump, and anti-slip patterns are respectively provided on the plurality of second profiling surfaces (25).

Images