Nixie tube detection device and detection method based on machine vision

Abstract

The invention discloses a nixie tube detection device and method based on machine vision, and relates to the technical field of nixie tube detection.The nixie tube detection device comprises a base, lifting frames are fixedly connected to the two sides of the base, an adjusting circular track is fixedly connected to the lifting frames, and a first external connection frame is fixedly connected to the outer side wall, facing downwards, of the adjusting circular track. According to the nixie tube detection device and detection method based on machine vision, when the nixie tube is detected, firstly, one side of the nixie tube is subjected to vacuum adsorption through the alternate clamping mechanism, and the exposed side of the nixie tube is subjected to image acquisition through the image acquisition module; then one side of the nixie tube after image acquisition is completed is subjected to vacuum adsorption through the alternate clamping mechanism, the first shielded part is exposed, and the image acquisition module performs image acquisition on the nixie tube, so that the alternate clamping mechanism realizes vacuum adsorption on different side surfaces of the nixie tube in the rotation process of the image acquisition module; and thus, the integrity of the image acquisition data is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of digital tube detection, and in particular to a digital tube detection device and a detection method based on machine vision. Background Art

[0002] A Nixie tube, also known as a Nixie tube, is an electronic device that displays numbers and other information. The glass tube contains a wire mesh anode and multiple cathodes. Most Nixie tubes have cathodes shaped like numbers. After production, Nixie tubes require comprehensive testing.

[0003] During use, the existing machine vision-based inspection device clamps the two ends of the digital tube through a clamping mechanism, and then uses the image acquisition module to take a comprehensive photo and analyze the digital tube. However, the clamping mechanism clamps the two ends of the digital tube, thereby blocking the clamping parts of the two ends of the digital tube, making it impossible to achieve comprehensive image acquisition of the digital tube, reducing the integrity of the image acquisition, resulting in errors in the inspection results, and reducing the use value of the machine vision-based inspection device. Summary of the Invention

[0004] The present invention discloses a digital tube detection device based on machine vision, which aims to solve the technical problem that the existing machine vision detection device clamps the two ends of the digital tube through a clamping mechanism during use, and then uses an image acquisition module to perform all-round photographing and analysis of the digital tube. However, the clamping mechanism clamps the two ends of the digital tube, thereby causing the clamping parts at the two ends of the digital tube to be blocked, making it impossible to achieve all-round image acquisition of the digital tube, reducing the integrity of the image acquisition, and causing errors in the detection results.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] By providing a rotating clamping mechanism, when inspecting a digital tube, first, vacuum adsorption is performed on one side of the digital tube by the rotating clamping mechanism, and the image acquisition module acquires an image of the exposed side of the digital tube. Then, vacuum adsorption is performed on the side of the digital tube after image acquisition is completed by the rotating clamping mechanism, and the initially blocked part is exposed, and the image acquisition module acquires an image of it, thereby ensuring that the rotating clamping mechanism realizes vacuum adsorption on different sides of the digital tube during the rotation of the image acquisition module, thereby ensuring the integrity of the image acquisition data and improving the accuracy of the digital tube inspection results.

[0008] In a preferred solution, one end of the external frame is fixedly connected to a fixed frame, and both ends of one side of the fixed frame are fixedly connected to fixed columns, a semicircular adjustment rail is fixedly connected to the ends of the two fixed columns, one side of the fixed frame is fixedly connected to a forward and reverse motor, the output shaft of the forward and reverse motor is fixedly connected to the forward and reverse shaft through a coupling, the outer side wall of the forward and reverse shaft is fixedly connected to a mounting rod, and the side of the mounting rod facing the iron block 2 is fixedly connected to the electromagnet 2, and the electromagnet 2 is in contact with the iron block 2.

[0009] In a preferred solution, the semicircular adjustment rail is fixedly connected to a bent frame on one side close to the vertical connecting rail, and a hydraulic cylinder 2 is fixedly connected to one side of the bent frame, and the output end of the hydraulic cylinder 2 is fixedly connected to one side of the vertical connecting rail. The semicircular adjustment rail is fixedly connected to a removal rail on the other side close to the vertical connecting rail, and a removal slider is fixedly connected to one side of the vertical connecting rail, and the movable slider is slidably connected to the inside of the removal rail.

[0010] In a preferred solution, one side of the adjustment ring rail is fixedly connected to an external frame 2, and one end of the external frame 2 is fixedly connected to a motor frame, the interior of the motor frame is fixedly connected to a drive motor 1, the output shaft of the drive motor 1 is fixedly connected to the drive shaft through a coupling, the outer side wall of the drive shaft is fixedly connected to a rotating connecting rod, one end of the rotating connecting rod is fixedly connected to an adjustment slider, and the adjustment slider is slidably connected to the interior of the adjustment ring rail.

[0011] In a preferred solution, one side of the adjustment slider is fixedly connected to an adjustment frame, and a fine-tuning distance mechanism is provided on the side of the adjustment frame facing the center point of the adjustment ring rail, the fine-tuning distance mechanism includes an adjustment cylinder frame, the adjustment cylinder frame is fixedly connected to the bottom of the adjustment frame, the outer side wall of the adjustment cylinder frame is fixedly connected to a bonding block, the bottom of the bonding block is fixedly connected to a distance sensor, and the top of the bonding block is fixedly connected to an image analysis module.

[0012] In a preferred solution, the top inner wall of the adjusting cylinder frame is fixedly connected to two hydraulic cylinders 1, and the output ends of the two hydraulic cylinders 1 are fixedly connected to the same mounting seat, a mounting groove is provided at the bottom of the mounting seat, an image acquisition module is fixedly connected inside the mounting groove, a fine-tuning cavity is provided at the top of the mounting seat, an intermediate through-shaft is inserted inside the fine-tuning cavity, the top of the intermediate through-shaft is fixedly connected to the top inner wall of the adjusting cylinder frame, the outer side wall of the intermediate through-shaft is fixedly connected to a shock-absorbing airbag, an air hole is provided at the top of the shock-absorbing airbag, an air pipe is fixedly connected inside the air hole, and the outer side wall of the air pipe is connected to an air valve through a flange.

[0013] By providing a fine-tuning distance mechanism, the distance between the image acquisition module and the digital tube is in a continuously changing state during the rotation process of the image acquisition module. When the distance between the two is monitored by the distance sensor, if the distance is lengthened, the hydraulic cylinder is adjusted to drive the mounting base to move toward a position close to the digital tube, thereby ensuring that the image clarity captured by the image acquisition module is optimal. After the image is captured, the image analysis module can complete the image analysis more accurately, thereby obtaining accurate information on the digital tube detection.

[0014] In a preferred embodiment, the outer side wall of the middle through shaft is provided with multiple groups of shock-absorbing spring rods, and one end of each group of shock-absorbing spring rods is fixedly connected to the same shock-absorbing frame, and a groove is provided on the shock-absorbing frame. The shock-absorbing frame is located inside the groove and is connected to a contact roller at equal distances through a bearing, and the contact roller is in contact with the inner side wall of the fine-tuning cavity.

[0015] In a preferred solution, one side of the adjustment frame is fixedly connected to a docking rod, and the side of the docking rod near the bottom end is fixedly connected to a hydraulic cylinder three, the output end of the hydraulic cylinder three is provided with a regular cleaning mechanism, the regular cleaning mechanism includes a pushing frame, the pushing frame is fixedly connected to the output end of the hydraulic cylinder three, the bottom of the pushing frame is fixedly connected to a driving motor two, the output shaft of the driving motor two is fixedly connected to a rotating shaft through a coupling, the top of the rotating shaft is fixedly connected to a jet cylinder, and the top of the jet cylinder is provided with a jet hole.

[0016] In a preferred embodiment, the outer side wall of the air jet is fixedly connected to a rotating frame, and a plurality of groups of bristles are provided on the top of the rotating frame. The outer side wall of each bristle is fixedly connected to the same integration rod, one side of the integration rod is fixedly connected to an elastic rod, one end of the elastic rod is fixedly connected to the top of the rotating frame, the top of the rotating frame is fixedly connected to an air compressor, and the air delivery end of the air compressor is connected to the inside of the air jet through a pipeline.

[0017] By setting up a regular cleaning mechanism, after the image acquisition module has been used for a period of time, the hydraulic cylinder three is adjusted to drive the jet barrel on the regular cleaning mechanism to move to the lens of the image acquisition module, and the air compressor is started. The air compressor introduces compressed gas into the jet barrel and sprays it out through the jet hole, thereby blowing away the dust attached to the lens. During the process of the compressed gas being blown out, it disperses to the surroundings, and the dispersed compressed gas pushes each bristle to spread from the middle to the periphery, and the drive motor two is started. The drive motor two drives the gradually dispersed bristles to complete the efficient cleaning of the lens. The two cooperate to realize the cleaning process of the image acquisition module lens, ensuring that the image acquisition module can clearly perform image acquisition of the digital tube.

[0018] The method for detecting a digital tube based on machine vision uses the digital tube detection device based on machine vision as described above, and includes the following steps:

[0019] Step 1: First, perform unilateral adsorption and clamping of the digital tube, place it on the fixed vacuum suction cup at one end, and adsorb it through the fixed vacuum suction cup. Then start the forward and reverse motors to drive each dynamic vacuum suction cup to move to the end of the semicircular adjustment rail. The electromagnet 2 is powered off and the electromagnet 1 is powered on. Then, each dynamic vacuum suction cup is driven to the vertical connecting rail. The fixed vacuum suction cup and the dynamic vacuum suction cup cooperate to achieve stable adsorption of the digital tube.

[0020] Step 2: After one-side adsorption and clamping, start the drive motor 1, which drives the image acquisition module to move to the other side of the digital tube that is not clamped. The image acquisition module starts working. After the drive motor 1 drives the image acquisition module to rotate 180 degrees, it starts to clamp the other side of the digital tube.

[0021] Step 3: Electromagnet 1 is powered off, electromagnet 2 is powered on, and the other electromagnet 1 is powered on. The forward and reverse motors drive each dynamic vacuum suction cup to move to the other end of the digital tube, and then the fixed vacuum suction cup at the other end is powered on to adsorb the other side of the digital tube. The fixed vacuum suction cup at the original end is powered off, and the hydraulic cylinder 2 is adjusted to drive the vertical connecting rail to move away from the digital tube, thereby exposing the side of the digital tube that was originally adsorbed and blocked. When the drive motor 1 continues to drive the image acquisition module to rotate 180°, the full-range shooting and acquisition of the digital tube is completed, and the image analysis module analyzes the image feedback from the image acquisition module to obtain the digital tube detection result.

[0022] As can be seen from the above, the digital tube detection device based on machine vision provided by the present invention has the following characteristics: when performing digital tube detection, first, vacuum adsorption is performed on one side of the digital tube through the rotating clamping mechanism, and the image acquisition module performs image acquisition on the exposed side of the digital tube. Then, vacuum adsorption is performed on the side of the digital tube after image acquisition is completed through the rotating clamping mechanism, and the initially blocked part is exposed, and the image acquisition module performs image acquisition on it, thereby ensuring that during the rotation of the image acquisition module, the rotating clamping mechanism realizes vacuum adsorption on different sides of the digital tube, thereby ensuring the integrity of the image acquisition data and improving the accuracy of the digital tube detection results. Technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the digital tube detection device based on machine vision proposed in the present invention.

[0024] Figure 2 This is a top view of the overall structure of the digital tube detection device based on machine vision proposed by the present invention.

[0025] Figure 3 This is a schematic diagram of the rotating clamping mechanism of the digital tube detection device based on machine vision proposed by the present invention.

[0026] Figure 4 This is a cross-sectional view of the semicircular adjustment rail structure of the digital tube detection device based on machine vision proposed by the present invention.

[0027] Figure 5 for Figure 4 Schematic diagram of the planar structure.

[0028] Figure 6 This is a schematic diagram of the combined structure of the adjustment ring rail and adjustment frame of the digital tube detection device based on machine vision proposed by the present invention.

[0029] Figure 7 This is a schematic diagram of the combined structure of the fine-tuning mechanism and the regular cleaning mechanism of the digital tube detection device based on machine vision proposed by the present invention.

[0030] Figure 8 This is a schematic diagram of the fine-tuning mechanism of the digital tube detection device based on machine vision proposed by the present invention.

[0031] Figure 9 This is a disassembled diagram of the mounting base, shock-absorbing frame and shock-absorbing airbag structure of the machine vision-based digital tube detection device proposed in the present invention.

[0032] Figure 10 This is a schematic diagram of the periodic cleaning mechanism of the digital tube detection device based on machine vision proposed in the present invention.

[0033] Figure 11This is a cross-sectional view of the air jet and rotating frame structure of the machine vision-based digital tube detection device proposed by the present invention.

[0034] In the figure: 1, base; 2, external frame 1; 3, lifting frame; 4, external frame 2; 5, motor frame; 6, driving motor 1; 7, rotating connecting rod; 8, adjustment frame; 9, fine-tuning mechanism; 901, adjustment cylinder frame; 902, image acquisition module; 903, mounting base; 904, shock-absorbing frame; 905, shock-absorbing airbag; 906, hydraulic cylinder 1; 907, air pipe; 908, air valve; 909, Contact roller; 910, middle through shaft; 911, shock-absorbing spring rod; 912, fine-tuning chamber; 10, adjusting ring rail; 11, rotating clamping mechanism; 1101, semicircular adjusting rail; 1102, vertical connecting rail; 1103, fixed block; 1104, hydraulic cylinder 2; 1105, fixed vacuum suction cup; 1106, forward and reverse axis; 1107, forward and reverse motor; 1108, bending frame; 1109, fixed Fixed frame; 1110, iron block one; 1111, dynamic vacuum suction cup; 1112, connecting block; 1113, fixed column; 1114, removal rail; 1115, electromagnet one; 1116, connecting rope; 1117, rotating slider; 1118, removal slider; 1119, electromagnet two; 1120, iron block two; 1121, mounting rod; 12, driving shaft; 13, docking rod; 14, adjusting slider; 15, image analysis module; 16, distance sensor; 17, fitting block; 18, hydraulic cylinder three; 19, regular cleaning mechanism; 1901, pushing frame; 1902, driving motor two; 1903, rotating frame; 1904, jet tube; 1905, jet hole; 1906, bristles; 1907, air compressor; 1908, integrating rod; 1909, elastic rod; 1910, rotating axis. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] The digital tube detection device based on machine vision disclosed in the present invention is mainly applied to the existing digital tube detection device based on machine vision. During use, the two ends of the digital tube are clamped by a clamping mechanism, and then the digital tube is photographed and analyzed in all directions through an image acquisition module. However, the clamping mechanism clamps the two ends of the digital tube, thereby causing the clamping parts at both ends of the digital tube to be blocked, making it impossible to achieve all-round image acquisition of the digital tube, reducing the integrity of the image acquisition, and leading to scenarios in which errors exist in the detection results.

[0037] Reference Figures 1-11The digital tube detection device based on machine vision includes a base 1, a lifting frame 3 is fixedly connected to both sides of the base 1, and an adjustment ring rail 10 is fixedly connected to the lifting frame 3, and the outer side wall of the adjustment ring rail 10 facing downward is fixedly connected to an external frame 2, and the external frame 2 is provided with a rotation clamping mechanism 11, and the rotation clamping mechanism 11 includes a semicircular adjustment rail 1101, and the inner sliding connection of the semicircular adjustment rail 1101 is three rotation sliders 1117, and the outer side walls of the three rotation sliders 1117 facing the center point of the semicircular adjustment rail 1101 are fixedly connected to a connecting block 1112, and the three connecting blocks 1112 are fixedly connected to dynamic vacuum Suction cup 1111, the two connecting blocks 1112 at both ends are fixedly connected to iron block 1110 on their facing sides, the connecting block 1112 in the middle is fixedly connected to iron block 2 1120 on one side, and the same connecting rope 1116 is fixedly connected between each two adjacent rotating sliders 1117, vertical connecting rails 1102 are placed at both ends of the top of the semicircular adjustment rail 1101, and the two vertical connecting rails 1102 are fixedly connected to the inside near the top with a fixed block 1103, one side of the fixed block 1103 is fixedly connected to a fixed vacuum suction cup 1105, and the bottom of the fixed block 1103 is fixedly connected to an electromagnet 1115.

[0038] In a specific application scenario, when clamping the digital tube, it is placed on the fixed vacuum suction cup 1105 at one end, and is adsorbed by the fixed vacuum suction cup 1105. Then, the forward and reverse motors 1107 are started to drive each dynamic vacuum suction cup 1111 to move to the end of the semicircular adjustment rail 1101. The electromagnet 2 1119 is powered off, and the electromagnet 1 1115 is powered on. Then, each dynamic vacuum suction cup 1111 is driven to the vertical connecting rail 1102. The fixed vacuum suction cup 1105 and the dynamic vacuum suction cup 1111 cooperate to achieve stable adsorption of the digital tube. When the image acquisition on one side of the digital tube is completed, the electromagnet 1119 is powered on. 115 is powered off, electromagnet 2 1119 is powered on, and another electromagnet 1 1115 is powered on. The forward and reverse motors 1107 drive each dynamic vacuum suction cup 1111 to move to the other end of the digital tube, and then the fixed vacuum suction cup 1105 at the other end is powered on to adsorb the other side of the digital tube. The fixed vacuum suction cup 1105 at the original end is powered off, and the hydraulic cylinder 2 1104 is adjusted to drive the vertical connecting rail 1102 to move away from the digital tube, thereby exposing the side of the digital tube that was originally adsorbed and blocked, and cooperating with the rotating image acquisition module 902 to realize all-round image acquisition of the digital tube, ensuring the accuracy of the detection results.

[0039] It should be noted that during the process of clamping the two sides of the digital tube, the vertical connecting rail 1102 in an unused state is driven by the hydraulic cylinder 2 1104 to move in the direction away from the digital tube, thereby avoiding the vertical connecting rail 1102 blocking the collected part of the digital tube and causing incomplete digital tube image collection data.

[0040] Reference Figure 1-Figure 5 In a preferred embodiment, one end of the external frame is fixedly connected to a fixing frame 1109, and both ends of one side of the fixing frame 1109 are fixedly connected to fixing columns 1113, the semicircular adjustment rail 1101 is fixedly connected to the ends of the two fixing columns 1113, one side of the fixing frame 1109 is fixedly connected to a forward and reverse motor 1107, the output shaft of the forward and reverse motor 1107 is fixedly connected to a forward and reverse shaft 1106 through a coupling, the outer side wall of the forward and reverse shaft 1106 is fixedly connected to a mounting rod 1121, and the side of the mounting rod 1121 facing the iron block 1120 is fixedly connected to the electromagnet 1121. 119, electromagnet 2 1119 is in contact with iron block 2 1120, and the side of the semicircular adjustment rail 1101 close to the vertical connecting rail 1102 is fixedly connected with a bent frame 1108, and one side of the bent frame 1108 is fixedly connected with hydraulic cylinder 2 1104, and the output end of hydraulic cylinder 2 1104 is fixedly connected to one side of the vertical connecting rail 1102, and the other side of the semicircular adjustment rail 1101 close to the vertical connecting rail 1102 is fixedly connected with a removal rail 1114, and one side of the vertical connecting rail 1102 is fixedly connected with a removal slider 1118, and the movable slider is slidably connected to the inside of the removal rail 1114.

[0041] Reference Figure 1 、 Figure 2 and Figure 6 In a preferred embodiment, one side of the adjustment ring rail 10 is fixedly connected to an external frame 2 4, and one end of the external frame 2 4 is fixedly connected to a motor frame 5, the interior of the motor frame 5 is fixedly connected to a drive motor 1 6, and the output shaft of the drive motor 1 6 is fixedly connected to a drive shaft 12 through a coupling, and the outer side wall of the drive shaft 12 is fixedly connected to a rotating connecting rod 7, and one end of the rotating connecting rod 7 is fixedly connected to an adjusting slider 14, and the adjusting slider 14 is slidably connected to the interior of the adjustment ring rail 10.

[0042] Reference Figure 1 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9In a preferred embodiment, one side of the adjusting slider 14 is fixedly connected to an adjusting frame 8, and the side of the adjusting frame 8 facing the center point of the adjusting ring rail 10 is provided with a fine-tuning distance mechanism 9, and the fine-tuning distance mechanism 9 includes an adjusting cylinder frame 901, and the adjusting cylinder frame 901 is fixedly connected to the bottom of the adjusting frame 8, and the outer wall of the adjusting cylinder frame 901 is fixedly connected to a fitting block 17, and the bottom of the fitting block 17 is fixedly connected to a distance sensor 16, and the top of the fitting block 17 is fixedly connected to an image analysis module 15, and the top inner wall of the adjusting cylinder frame 901 is fixedly connected to two hydraulic cylinders 906, and the output ends of the two hydraulic cylinders 906 are fixedly connected to the same mounting seat 903, and a mounting groove is provided at the bottom of the mounting seat 903, and the interior of the mounting groove is fixedly connected to the image acquisition module 902, and the mounting seat A fine-tuning cavity 912 is provided at the top of 903, and an intermediate through-shaft 910 is inserted into the interior of the fine-tuning cavity 912. The top of the intermediate through-shaft 910 is fixedly connected to the top inner wall of the adjusting cylinder frame 901, and the outer wall of the intermediate through-shaft 910 is fixedly connected to a shock-absorbing airbag 905. An air hole is provided at the top of the shock-absorbing airbag 905, and an air pipe 907 is fixedly connected to the inside of the air hole. The outer wall of the air pipe 907 is connected to an air valve 908 through a flange, and a plurality of groups of shock-absorbing spring rods 911 are provided on the outer wall of the intermediate through-shaft 910, and one end of each group of shock-absorbing spring rods 911 is fixedly connected to the same shock-absorbing frame 904. A groove is provided on the shock-absorbing frame 904, and the shock-absorbing frame 904 is located inside the groove and is equidistantly connected to a contact roller 909 through a bearing. The contact roller 909 is in contact with the inner wall of the fine-tuning cavity 912.

[0043] Specifically, during the rotation of the image acquisition module 902, the distance between it and the digital tube is in a state of continuous change. When the distance between the two is monitored by the distance sensor 16, if the distance is lengthened, the hydraulic cylinder 1 906 is adjusted to drive the mounting base 903 to move toward a position close to the digital tube, thereby ensuring that the image clarity captured by the image acquisition module 902 is optimal. After the image is captured, the image analysis module 15 can complete the image analysis more accurately, and thus obtain accurate information on the digital tube detection.

[0044] It should be noted that during the fine-tuning of the distance of the image acquisition module 902, the mounting seat 903 passes through the intermediate through-shaft 910. During the passage, the shock-absorbing spring rod 911 weakens the vibration generated during the fine-tuning process. At the same time, the shock-absorbing airbag 905 that contacts and squeezes each shock-absorbing frame 904 completes secondary shock-absorbing weakening, ensuring the stability of the image acquisition module 902 during the fine-tuning process and avoiding shaking that causes blurred image acquisition.

[0045] Reference Figure 1 、 Figure 7 、 Figure 10 and Figure 11In a preferred embodiment, one side of the adjustment frame 8 is fixedly connected to a docking rod 13, and the side of the docking rod 13 near the bottom end is fixedly connected to a hydraulic cylinder 3 18, and the output end of the hydraulic cylinder 3 18 is provided with a regular cleaning mechanism 19, and the regular cleaning mechanism 19 includes a pushing frame 1901, and the pushing frame 1901 is fixedly connected to the output end of the hydraulic cylinder 3 18, and the bottom of the pushing frame 1901 is fixedly connected to a driving motor 2 1902, and the output shaft of the driving motor 2 1902 is fixedly connected to a rotating shaft 1910 through a coupling, and the top of the rotating shaft 1910 is fixedly connected to a jet nozzle 1904 An air hole 1905 is provided at the top of the air jet cylinder 1904, and the outer wall of the air jet cylinder 1904 is fixedly connected to a rotating frame 1903, and a plurality of groups of bristles 1906 are provided on the top of the rotating frame 1903, and the outer wall of each bristle 1906 is fixedly connected to the same integration rod 1908, and one side of the integration rod 1908 is fixedly connected to an elastic rod 1909, and one end of the elastic rod 1909 is fixedly connected to the top of the rotating frame 1903, and the top of the rotating frame 1903 is fixedly connected to an air compressor 1907, and the air delivery end of the air compressor 1907 is connected to the inside of the air jet cylinder 1904 through a pipeline.

[0046] Specifically, after the image acquisition module 902 has been used for a period of time, the hydraulic cylinder 3 18 is adjusted to drive the jet cylinder 1904 on the regular cleaning mechanism 19 to move to the lens of the image acquisition module 902, and the air compressor 1907 is started. The air compressor 1907 introduces compressed gas into the jet cylinder 1904 and sprays it through the jet hole 1905, thereby blowing away the dust attached to the lens. During the expansion of the compressed gas, it disperses to the surroundings, and the dispersed compressed gas pushes each bristle 1906 to expand from the middle to the periphery. The drive motor 2 1902 is started, and the drive motor 2 1902 drives the gradually dispersed bristles 1906 to complete efficient cleaning of the lens. The two cooperate to realize the cleaning process of the lens of the image acquisition module 902, ensuring that the image acquisition module 902 can clearly perform image acquisition of the digital tube.

[0047] The method for detecting a digital tube based on machine vision uses the digital tube detection device based on machine vision as described above, and includes the following steps:

[0048] Step 1: First, perform unilateral adsorption and clamping of the digital tube, place it on the fixed vacuum suction cup 1105 at one end, and adsorb it through the fixed vacuum suction cup 1105. Then start the forward and reverse motor 1107 to drive each dynamic vacuum suction cup 1111 to move to the end of the semicircular adjustment rail 1101. The electromagnet 2 1119 is powered off, and the electromagnet 1 1115 is powered on. Then, each dynamic vacuum suction cup 1111 is driven to the vertical connecting rail 1102. The fixed vacuum suction cup 1105 and the dynamic vacuum suction cup 1111 cooperate to achieve stable adsorption of the digital tube.

[0049] Step 2: After one-side adsorption and clamping, start the drive motor 16, which drives the image acquisition module 902 to move to the other side of the digital tube that is not clamped. The image acquisition module 902 starts working. After the drive motor 16 drives the image acquisition module 902 to rotate 180 degrees, it starts to clamp the other side of the digital tube.

[0050] Step 3: Electromagnet 1 1115 is powered off, electromagnet 2 1119 is powered on, and another electromagnet 1115 is powered on. The forward and reverse motors 1107 drive each dynamic vacuum suction cup 1111 to move to the other end of the digital tube, and then the fixed vacuum suction cup 1105 at the other end is powered on to adsorb the other side of the digital tube. The fixed vacuum suction cup 1105 at the original end is powered off, and the hydraulic cylinder 2 1104 is adjusted to drive the vertical connecting rail 1102 to move away from the digital tube, thereby exposing the side of the digital tube that was originally adsorbed and blocked. When the drive motor 1 6 continues to drive the image acquisition module 902 to rotate 180°, the full-dimensional shooting and acquisition of the digital tube is completed, and the image analysis module 15 analyzes the image feedback from the image acquisition module 902 to obtain the digital tube detection result.

[0051] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A digital tube detection device based on machine vision, comprising a base (1), characterized in that: The base (1) is fixedly connected to a lifting frame (3) on both sides, and the lifting frame (3) is fixedly connected to an adjustment ring rail (10), and the outer side wall of the adjustment ring rail (10) facing downward is fixedly connected to an external frame (2), and the external frame (2) is provided with a rotating clamping mechanism (11), and the rotating clamping mechanism (11) includes a semicircular adjustment rail (1101), and the inner sliding connection of the semicircular adjustment rail (1101) is connected to three rotating sliders (1117), and the outer side walls of the three rotating sliders (1117) facing the center point of the semicircular adjustment rail (1101) are fixedly connected to a connecting block (1112), and the three connecting blocks (1112) are fixedly connected to a dynamic vacuum suction cup (1111), The two connecting blocks (1112) at the two ends are fixedly connected to the opposite sides thereof with an iron block 1 (1110), the connecting block (1112) at the middle is fixedly connected to the iron block 2 (1120) on one side thereof, and a same connecting rope (1116) is fixedly connected between each two adjacent rotating sliders (1117). Vertical connecting rails (1102) are placed at both ends of the top of the semicircular adjustment rail (1101), and the two vertical connecting rails (1102) are fixedly connected to the inside near the top with a fixed block (1103), one side of the fixed block (1103) is fixedly connected to a fixed vacuum suction cup (1105), and the bottom of the fixed block (1103) is fixedly connected to an electromagnet 1 (1115).

2. The digital tube detection device based on machine vision according to claim 1 is characterized in that: One end of the external frame is fixedly connected to a fixing frame (1109), and both ends of one side of the fixing frame (1109) are fixedly connected to fixing columns (1113), a semicircular adjustment rail (1101) is fixedly connected to the ends of two fixing columns (1113), one side of the fixing frame (1109) is fixedly connected to a forward and reverse motor (1107), an output shaft of the forward and reverse motor (1107) is fixedly connected to a forward and reverse shaft (1106) via a coupling, an outer side wall of the forward and reverse shaft (1106) is fixedly connected to a mounting rod (1121), a side of the mounting rod (1121) facing the second iron block (1120) is fixedly connected to a second electromagnet (1119), and the second electromagnet (1119) is in contact with the second iron block (1120).

3. The digital tube detection device based on machine vision according to claim 2 is characterized in that: The semicircular adjustment rail (1101) is fixedly connected to a bending frame (1108) on one side close to the vertical connecting rail (1102), and a hydraulic cylinder 2 (1104) is fixedly connected to one side of the bending frame (1108), and the output end of the hydraulic cylinder 2 (1104) is fixedly connected to one side of the vertical connecting rail (1102). The semicircular adjustment rail (1101) is fixedly connected to a removal rail (1114) on the other side close to the vertical connecting rail (1102), and a removal slider (1118) is fixedly connected to one side of the vertical connecting rail (1102), and the movable slider is slidably connected to the inside of the removal rail (1114).

4. The digital tube detection device based on machine vision according to claim 3 is characterized in that: One side of the adjustment ring rail (10) is fixedly connected to an external frame 2 (4), and one end of the external frame 2 (4) is fixedly connected to a motor frame (5), the interior of the motor frame (5) is fixedly connected to a drive motor 1 (6), the output shaft of the drive motor 1 (6) is fixedly connected to a drive shaft (12) via a coupling, the outer side wall of the drive shaft (12) is fixedly connected to a rotating connecting rod (7), one end of the rotating connecting rod (7) is fixedly connected to an adjustment slider (14), and the adjustment slider (14) is slidably connected to the interior of the adjustment ring rail (10).

5. The digital tube detection device based on machine vision according to claim 4 is characterized in that: An adjustment frame (8) is fixedly connected to one side of the adjustment slider (14), and a fine-tuning distance adjustment mechanism (9) is provided on the side of the adjustment frame (8) facing the center point of the adjustment ring track (10), the fine-tuning distance adjustment mechanism (9) comprises an adjustment cylinder frame (901), the adjustment cylinder frame (901) is fixedly connected to the bottom of the adjustment frame (8), an outer side wall of the adjustment cylinder frame (901) is fixedly connected to a bonding block (17), a distance sensor (16) is fixedly connected to the bottom of the bonding block (17), and an image analysis module (15) is fixedly connected to the top of the bonding block (17).

6. The digital tube detection device based on machine vision according to claim 5, characterized in that: The top inner wall of the adjusting cylinder frame (901) is fixedly connected to two hydraulic cylinders (906), and the output ends of the two hydraulic cylinders (906) are fixedly connected to the same mounting seat (903). The bottom of the mounting seat (903) is provided with a mounting groove, and the interior of the mounting groove is fixedly connected to the image acquisition module (902). The top of the mounting seat (903) is provided with a fine-tuning cavity (912), and the interior of the fine-tuning cavity (912) is plugged with an intermediate through-shaft (910), and the top of the intermediate through-shaft (910) is fixedly connected to the top inner wall of the adjusting cylinder frame (901), and the outer wall of the intermediate through-shaft (910) is fixedly connected to a shock-absorbing airbag (905), and the top of the shock-absorbing airbag (905) is provided with an air hole, and the interior of the air hole is fixedly connected to an air pipe (907), and the outer wall of the air pipe (907) is connected to an air valve (908) via a flange.

7. The digital tube detection device based on machine vision according to claim 6, characterized in that: The outer side wall of the middle through shaft (910) is provided with a plurality of groups of shock absorbing spring rods (911), and one end of each group of shock absorbing spring rods (911) is fixedly connected to the same shock absorbing frame (904), a groove is formed on the shock absorbing frame (904), and the shock absorbing frame (904) is located inside the groove and is connected to contact rollers (909) at equal distances through bearings, and the contact rollers (909) are in contact with the inner side wall of the fine adjustment cavity (912).

8. The digital tube detection device based on machine vision according to claim 7, characterized in that: A docking rod (13) is fixedly connected to one side of the adjustment frame (8), and a hydraulic cylinder three (18) is fixedly connected to one side of the docking rod (13) near the bottom end. The output end of the hydraulic cylinder three (18) is provided with a regular cleaning mechanism (19). The regular cleaning mechanism (19) comprises a pushing frame (1901), the pushing frame (1901) is fixedly connected to the output end of the hydraulic cylinder three (18), the bottom of the pushing frame (1901) is fixedly connected to a driving motor two (1902), the output shaft of the driving motor two (1902) is fixedly connected to a rotating shaft (1910) via a coupling, the top of the rotating shaft (1910) is fixedly connected to a jet tube (1904), and the top of the jet tube (1904) is provided with a jet hole (1905).

9. The digital tube detection device based on machine vision according to claim 8, characterized in that: The outer wall of the air jet cylinder (1904) is fixedly connected to a rotating frame (1903), and a plurality of groups of bristles (1906) are provided on the top of the rotating frame (1903), and the outer wall of each bristle (1906) is fixedly connected to the same integration rod (1908), one side of the integration rod (1908) is fixedly connected to an elastic rod (1909), one end of the elastic rod (1909) is fixedly connected to the top of the rotating frame (1903), and the top of the rotating frame (1903) is fixedly connected to an air compressor (1907), and the air delivery end of the air compressor (1907) is connected to the inside of the air jet cylinder (1904) through a pipeline.

10. A method for detecting a digital tube based on machine vision, using the digital tube detection device based on machine vision as claimed in claim 9, characterized in that: The following steps are involved: Step 1: First, the digital tube is unilaterally adsorbed and clamped, and is placed on a fixed vacuum suction cup (1105) at one end, and adsorbed by the fixed vacuum suction cup (1105), and then the forward and reverse motor (1107) is started to drive each dynamic vacuum suction cup (1111) to move to the end of the semicircular adjustment rail (1101), the electromagnet 2 (1119) is powered off, and the electromagnet 1 (1115) is powered on, so that each dynamic vacuum suction cup (1111) is driven to the vertical connecting rail (1102), and the fixed vacuum suction cup (1105) and the dynamic vacuum suction cup (1111) cooperate to achieve stable adsorption of the digital tube; Step 2: After the single-side adsorption clamping, start the driving motor 1 (6), the driving motor 1 (6) drives the image acquisition module (902) to move to the other side of the digital tube that is not clamped, and the image acquisition module (902) starts to work. After the driving motor 1 (6) drives the image acquisition module (902) to rotate 180 degrees, the other side of the digital tube starts to be clamped; Step 3: The electromagnet 1 (1115) is powered off, the electromagnet 2 (1119) is powered on, and the other electromagnet 1 (1115) is powered on. The forward and reverse motors (1107) drive the moving vacuum suction cups (1111) to move to the other end of the digital tube. Then, the fixed vacuum suction cup (1105) at the other end is powered on to adsorb the other side of the digital tube. The fixed vacuum suction cup (1105) at the original end is powered off. The hydraulic cylinder 2 (1104) is adjusted to drive the vertical connecting rail (1102) to move away from the digital tube, thereby exposing the side of the digital tube that was initially adsorbed and blocked. When the driving motor 1 (6) continues to drive the image acquisition module (902) to rotate 180 degrees, the digital tube is fully photographed and collected. The image analysis module (15) analyzes the image feedback from the image acquisition module (902) to obtain the digital tube detection result.

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