Insulator airtightness detection device and method thereof

Abstract

The invention discloses an insulator air tightness detection device and method, and relates to the technical field of insulator air tightness detection.The insulator air tightness detection device structurally comprises a workbench, a support is fixedly connected to the top of the workbench, a central control system is fixedly connected to one side of the front face of the workbench, and a hydraulic cylinder is fixedly installed at the top of the support; a hydraulic rod is fixedly connected to the output end of the hydraulic cylinder, a sealing shell is arranged at the bottom end of the hydraulic rod, a printing mechanism is arranged on the surface of the sealing shell, and a detection table is arranged on the bottom side of the sealing shell. According to the insulator airtightness detection device and method, labels can be printed on the insulators which are detected to be unqualified, confusion and re-detection are avoided, automatic taking and placing of the multiple insulators are achieved, and the detection efficiency of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of insulator airtightness detection, and specifically provides an insulator airtightness detection device and method therefor. Background Art

[0002] Insulators are key devices in the power system used to support and fix live conductors and ensure insulation between them and grounding components. They are widely used in power transmission lines, substations, electrical equipment and other fields. Their main function is to prevent current leakage and ensure the safe operation of the power system. The airtightness of insulators is the basic guarantee for their electrical performance, mechanical performance and environmental adaptability. Insufficient airtightness will directly lead to insulation deterioration, equipment corrosion, increased short-circuit risk, and even cause systematic safety accidents. Strict airtightness design and detection are the cornerstones of the safe and stable operation of the power system. Therefore, it is necessary to conduct airtightness detection on insulators before leaving the factory.

[0003] Insulator airtightness detection is the core link to ensure the long-term safe and stable operation of power equipment. It is mainly used to detect whether there are gas leakage or seal failure problems in insulators (such as composite insulators, porcelain insulators, etc.). Through standardized airtightness detection, faults caused by seal failure of insulators can be effectively prevented, and the reliable operation of the power system can be guaranteed. Through strict detection, a decline in insulation performance, equipment damage and even safety accidents caused by seal failure can be effectively prevented. At the same time, the life-cycle cost can be reduced, meeting the requirements of industry specifications. For the fields of high-voltage power transmission, new energy (such as wind power, photovoltaic) and industrial electrical equipment, the importance of airtightness detection is particularly prominent.

[0004] For existing insulator airtightness detection devices and methods, after the device finishes detecting the insulators, it is still necessary to manually take them out and classify them, which reduces the detection efficiency of the device. In addition, unqualified insulators are not marked, and it is easy to get confused when taking and placing insulators, resulting in that the staff cannot identify whether the insulators are qualified in the first time and need to re-detect the insulators, thus reducing the detection efficiency. Summary of the Invention

[0005] (1) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides an insulator airtightness detection device and method therefor, which solve the problems that after the device finishes detecting the insulators, it is still necessary to manually take them out and classify them, reducing the detection efficiency of the device, and that unqualified insulators are not marked, and it is easy to get confused when taking and placing insulators, resulting in that the staff cannot identify whether the insulators are qualified in the first time and need to re-detect the insulators, thus reducing the detection efficiency.

[0006] (2) Technical Solutions To achieve the above object, the present invention is realized through the following technical solutions: An insulator airtightness detection device and method, including a workbench, a bracket is fixedly connected to the top of the workbench, a central control system is fixedly connected to one side of the front of the workbench, a hydraulic cylinder is fixedly installed on the top of the bracket, the output end of the hydraulic cylinder is fixedly connected to a hydraulic rod, a sealing shell is arranged at the bottom end of the hydraulic rod, a printing mechanism is arranged on the surface of the sealing shell, a detection table is arranged at the bottom side of the sealing shell, the number of the sealing shell and the detection table are both correspondingly provided with a plurality of, a screening and feeding mechanism is jointly arranged between the plurality of detection tables and the workbench, an insulator body is placed on the top of the detection table, a sealing detection mechanism is jointly arranged between the sealing shell and the detection table. By the printing mechanism, an unqualified label is printed on the surface of the insulator body detected as unqualified, and no label is printed on the surface of the insulator body detected as qualified. Through the screening and feeding mechanism, the insulator bodies detected as qualified or unqualified are screened and fed into different screening slots, and then the detected insulators are conveyed out through the conveyor belt therein, which can distinguish the qualified and unqualified insulator bodies, prevent people from confusing them and re-detecting them later, improve the detection efficiency of the device, and through the screening and feeding mechanism, automatic screening and feeding can be realized, liberating the hands of the staff and improving the efficiency of the device; The printing mechanism includes an ink cartridge, the ink cartridge is fixedly connected to the top of the sealing shell, an ink delivery pipe is connected to the bottom end of the ink cartridge, and the bottom end of the ink delivery pipe passes through the top wall of the sealing shell and is fixedly connected to a printing block; The screening and feeding mechanism includes a U-shaped plate, the U-shaped plate is fixedly connected to the top of the workbench, a rotating shaft is fixedly connected to the inner side of the U-shaped plate, connecting pieces are fixedly connected to both sides of the bottom of the detection table, one of the connecting pieces is rotatably connected to the surface of the rotating shaft, and the bottom of the other connecting piece is rotatably connected to a first electric telescopic rod, the bottom end of the first electric telescopic rod is fixedly connected to the top of the workbench, and a photoelectric sensor is fixedly connected to the front of the detection table.

[0007] Preferably, the printing mechanism further includes a moving plate, the moving plate is fixedly connected to the top of the printing block, and second electric telescopic rods are jointly fixedly connected between the top sides of the moving plate and the inner top wall of the sealing shell. The second electric telescopic rod drives the printing block to move downward until the bottom of the printing block touches the insulator body and prints an unqualified label on it, and then the second electric telescopic rod moves upward to return to its original position, so that the unqualified insulator body can be printed with a label, which is convenient to distinguish the unqualified insulator body and avoid confusion of the detected products.

[0008] Preferably, a feeding tube is connected to one side of the top of the ink cartridge, and a sealing plug is plugged at the top end of the feeding tube. Through the feeding tube, ink can be added to the ink cartridge to prevent the ink in the ink cartridge from running out and affecting printing. After the addition is completed, the sealing plug is plugged at the top end of the feeding tube to prevent the ink from spilling out of the ink cartridge.

[0009] Preferably, the sealing detection mechanism includes an air pump, which is fixedly connected to the top of the workbench. The output end of the air pump is connected to an air pipe, and one end of the air pipe penetrates through the inner wall of multiple detection platforms. A branch pipe is fixedly connected to the top of the air pipe. The air pump conveys gas through the air pipe and then conveys the gas to the inside of each insulator body through the branch pipe. By inflating the inside of the insulator body, it is observed whether the insulator body leaks air to judge the sealing performance of the insulator body.

[0010] Preferably, a placement groove is formed at the top of the detection platform, and the insulator body is placed inside the placement groove. The top end of the branch pipe penetrates through the inner wall of the detection platform and extends to the inside of the insulator body. A first sealing ring is fixedly connected inside the placement groove, and a second sealing ring is fixedly connected between the branch pipe and the detection platform. Through the setting of the first sealing ring, the edge of the insulator body can be sealed, and through the setting of the second sealing ring, the gap between the branch pipe and the detection platform can be sealed. Therefore, through the setting of the first sealing ring and the second sealing ring, a closed space can be formed inside the insulator body, which is convenient for conveying gas inside for detection.

[0011] Preferably, a first air pressure sensor is fixedly connected inside the placement groove, and a second air pressure sensor is fixedly connected inside the sealing shell. Through the first air pressure sensor, the air pressure inside the insulator body can be monitored, and through the second air pressure sensor, the air pressure inside the sealing shell can be monitored, which is convenient for judging whether the gas inside the insulator body enters the inside of the sealing shell, so as to monitor the gas flow situation in real time, judge the sealing performance of the insulator, and further judge whether the insulator detection is qualified.

[0012] Preferably, the sealing detection mechanism further includes a through hole, which is formed at the bottom of the sealing shell. A third sealing ring is fixedly connected to the bottom of the sealing shell, and the third sealing ring is located outside the through hole. The third sealing ring can be used to seal the gap between the sealing shell and the detection platform, prevent external air from entering the inside of the sealing shell, ensure the sealing performance inside the sealing shell, and improve the accuracy of the detection result of the device.

[0013] Preferably, a pressing rod is slidably connected to the surface of the sealing shell. The number of the pressing rods is set to be multiple, and the multiple pressing rods are symmetrically distributed about the center. Limiting plates are fixedly connected to both ends of the pressing rod. A pressing spring is sleeved outside the pressing rod, and the pressing spring is located inside the sealing shell. The hydraulic rod drives the sealing shell to move downward until the limiting plate at the bottom of the pressing rod just abuts against the edge of the insulator body. And through the pressing action of the pressing spring, the pressing rod drives the limiting plate at the bottom to firmly press the insulator body, so that the insulator body can be firmly fixed and can be pressed against the first sealing ring, improving the sealing performance inside the insulator body.

[0014] Preferably, screening grooves are formed on both sides of the top of the workbench. The number of the screening grooves is set to be two. A conveyor belt is fixedly installed inside the two screening grooves. A baffle is arranged on one side of the top of the screening groove, and the baffle is fixedly connected to the top of the workbench. An outlet plate is fixedly connected to one side of the workbench, and the outlet plate is located at the output ports of the two screening grooves. An electronic slide rail is fixedly connected to one side of the bottom of the bracket, and a manipulator is slidably connected to the bottom of the electronic slide rail. The detected insulator bodies are respectively put into the screening grooves on both sides according to whether they are qualified. Then the insulator bodies are conveyed out through the conveyor belt and are processed by using the outlet plate device. The baffle can reduce the probability of the insulator body falling out of the inside of the screening groove.

[0015] An insulator airtightness detection method includes the following steps: S1. The manipulator places the insulator on the detection table, and then the hydraulic rod drives the sealing shell to move downward to fix and seal the insulator. S2. The air pump increases the air pressure inside the sealed insulator. The second air pressure sensor monitors the air pressure inside the sealing shell. If the air pressure inside the sealing shell increases, the insulator is detected as unqualified. If the air pressure inside the sealing shell remains unchanged, the insulator is detected as qualified. S3. The printing mechanism prints an unqualified label on the detected unqualified insulator, and then the qualified insulator does not need to be printed with a label. S4. The first electric telescopic rod is started to move upward to push the insulator printed with the unqualified label into the screening groove on one side. The first electric telescopic rod is started to move downward to push the qualified insulator into the screening groove on the other side. The conveyor belt transports the insulators in the two screening grooves out and classifies them for processing.

[0016] (3) Beneficial effects The present invention provides an insulator airtightness detection device and method. It has the following beneficial effects: (1). The insulator airtightness detection device and its method can change the inclination position of the detection table by the up-and-down movement of the first electric telescopic rod after detecting the insulator, so as to be able to place the insulators on the detection table at different positions, realizing the automatic removal of the insulators, saving manpower, and being able to print labels on the unqualified insulators through the printing mechanism, which is convenient for distinguishing whether the insulators are qualified, not easy to be confused, and there is no need to detect again, improving the detection efficiency of the device.

[0017] (2). The insulator airtightness detection device and its method can realize the continuous automatic loading of the insulators to be detected and the automatic unloading of the already detected insulators through the settings of the manipulator, photoelectric sensor, first electric telescopic rod and rotating shaft, etc., improving the automation degree of the device during operation, and multiple insulators can be detected simultaneously through multiple detection tables, realizing the detection efficiency of the device.

[0018] (3). The insulator airtightness detection device and its method can respectively monitor the air pressure inside the insulator and the air pressure inside the sealing shell through the settings of the first air pressure sensor and the second air pressure sensor. Instead of using the traditional method to make the insulator in a vacuum environment, only need to judge according to the change of the air pressure environment outside the insulator, canceling the requirement of the insulator for the vacuum environment, and the detection environment is easier to create.

[0019] (4). The insulator airtightness detection device and its method can improve the sealing performance inside the sealing shell and the sealing performance of the internal space of the insulator through the settings of the first sealing ring, the second sealing ring and the third sealing ring, overall improving the sealing performance of the device during detection, preventing air leakage from causing inaccurate detection results, and improving the accuracy of the detection results of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the surface of the workbench of the present invention; Figure 3 is the structural schematic diagram of the printing mechanism of the present invention; Figure 4 is the structural schematic diagram of the screening and placing mechanism of the present invention; Figure 5 is the overall structural schematic diagram of the seal detection mechanism of the present invention; Figure 6 is the front sectional view of the detection table of the present invention; Figure 7 is the bottom structural schematic diagram of the sealing shell of the present invention; Figure 8 of the present invention Figure 7Enlarged view of part A Figure 9 The structural schematic diagram of the insulator body of the present invention during airtightness detection.

[0021] In the figure: 1, workbench; 2, bracket; 3, central control system; 4, hydraulic cylinder; 5, hydraulic rod; 6, sealing shell; 7, printing mechanism; 71, ink cartridge; 72, ink delivery pipe; 73, printing block; 74, moving plate; 75, second electric telescopic rod; 76, feeding pipe; 77, sealing plug; 8, detection table; 9, screening and feeding mechanism; 91, U-shaped plate; 92, rotating shaft; 93, connecting member; 94, first electric telescopic rod; 95, photoelectric sensor; 10, insulator body; 11, sealing detection mechanism; 1101, air pump; 1102, air pipe; 1103, branch pipe; 1104, placement groove; 1105, first sealing ring; 1106, second sealing ring; 1107, first air pressure sensor; 1108, second air pressure sensor; 1109, through hole; 1110, third sealing ring; 1111,tightening rod; 1112, limiting plate; 1113, tightening spring; 12, screening groove; 13, conveyor belt; 14, baffle; 15, discharge plate; 16,e lectronic slide rail; 17, manipulator. Specific embodiments

[0022] Next will combine with the attached drawings in the embodiments of the present invention, and clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0023] Refer to Figure 1-9, the present invention provides a technical solution: an insulator airtightness detection device, the structure of which includes a workbench 1, a bracket 2 is fixedly connected to the top of the workbench 1, a central control system 3 is fixedly connected to one side of the front of the workbench 1, a hydraulic cylinder 4 is fixedly installed on the top of the bracket 2, the output end of the hydraulic cylinder 4 is fixedly connected to a hydraulic rod 5, a sealing shell 6 is arranged at the bottom end of the hydraulic rod 5, a printing mechanism 7 is arranged on the surface of the sealing shell 6, a detection table 8 is arranged at the bottom side of the sealing shell 6, the number of the sealing shell 6 and the detection table 8 are both correspondingly provided with a plurality of, a screening and feeding mechanism 9 is jointly arranged between the plurality of detection tables 8 and the workbench 1, an insulator body 10 is placed on the top of the detection table 8, a sealing detection mechanism 11 is jointly arranged between the sealing shell 6 and the detection table 8, a manipulator 17 places the insulator body 10 to be detected on the detection table 8, then the hydraulic rod 5 moves downward through the hydraulic cylinder 4, and at the same time the sealing shell 6 moves downward accordingly. The sealing shell 6 fixes and seals the insulator body 10 on the detection table 8, then the insulator body 10 is detected through the sealing detection mechanism 11, the surface of the insulator body 10 detected as unqualified is printed with an unqualified label through the printing mechanism 7, the surface of the insulator body 10 detected as qualified is not printed with a label, the insulator body 10 detected as qualified or unqualified is screened and fed into different screening slots 12 through the screening and feeding mechanism 9, and then the detected insulators are conveyed out through the conveyor belt 13 therein; The printing mechanism 7 includes an ink cartridge 71, the ink cartridge 71 is fixedly connected to the top of the sealing shell 6, the bottom end of the ink cartridge 71 is pipe-connected with an ink delivery pipe 72, and the bottom end of the ink delivery pipe 72 passes through the top wall of the sealing shell 6 and is fixedly connected to a printing block 73; The screening and feeding mechanism 9 includes a U-shaped plate 91, the U-shaped plate 91 is fixedly connected to the top of the workbench 1, a rotating shaft 92 is fixedly connected to the inner side of the U-shaped plate 91, connecting pieces 93 are fixedly connected to both sides of the bottom of the detection table 8, one of the connecting pieces 93 is rotatably connected to the surface of the rotating shaft 92, the bottom of the other connecting piece 93 is rotatably connected to the bottom end of a first electric telescopic rod 94, the bottom end of the first electric telescopic rod 94 is fixedly connected to the top of the workbench 1, and a photoelectric sensor 95 is fixedly connected to the front of the detection table 8.

[0024] Among them, the printing mechanism 7 further includes a moving plate 74. The moving plate 74 is fixedly connected to the top of the printing block 73. Between the two sides of the top of the moving plate 74 and the inner top wall of the sealing shell 6, a second electric telescopic rod 75 is fixedly connected. When an unqualified insulator body 10 is detected, the printing mechanism 7 prints an unqualified label on its surface. First, ink is added to the inside of the ink cartridge 71, and then the ink enters the inside of the printing block 73 through the ink delivery tube 72. The second electric telescopic rod 75 drives the printing block 73 to move downward until the bottom of the printing block 73 touches the insulator body 10 and prints an unqualified label on it. Then the second electric telescopic rod 75 moves upward to return to its original position, so that an unqualified label can be printed on the detected insulator body 10.

[0025] Among them, one side of the top of the ink cartridge 71 is connected to a feeding tube 76 through a pipe. The top end of the feeding tube 76 is plugged with a sealing plug 77. Through the feeding tube 76, ink can be added to the ink cartridge 71 to prevent the ink in the ink cartridge 71 from running out and affecting printing. After the addition is completed, the sealing plug 77 is plugged at the top end of the feeding tube 76 to prevent the ink from spilling out of the ink cartridge 71.

[0026] Among them, the sealing detection mechanism 11 includes an air pump 1101. The air pump 1101 is fixedly connected to the top of the workbench 1. The output end of the air pump 1101 is connected to an air pipe 1102 through a pipe. One end of the air pipe 1102 penetrates the inner walls of a plurality of detection platforms 8. A branch pipe 1103 is fixedly connected to the top of the air pipe 1102. The air pump 1101 is started to work. The air pump 1101 conveys gas through the air pipe 1102, and then conveys the gas to the inside of each insulator body 10 through the branch pipe 1103. Then, the air pressure inside the insulator is monitored by a first air pressure sensor 1107, and the air pressure inside the sealing shell 6 is monitored by a second air pressure sensor 1108. When it is detected that the air pressure value inside the sealing shell 6 increases, it means that the insulator body 10 leaks air and the sealing performance of the insulator is unqualified. When the second air pressure sensor 1108 monitors that the air pressure inside the sealing shell 6 remains unchanged, it means that the surface of the insulator body 10 does not leak air and the sealing performance detection of the insulator body 10 is qualified.

[0027] Among them, a placement groove 1104 is formed at the top of the detection table 8. The insulator body 10 is placed inside the placement groove 1104. The top end of the branch pipe 1103 passes through the inner wall of the detection table 8 and extends into the insulator body 10. A first sealing ring 1105 is fixedly connected inside the placement groove 1104. A second sealing ring 1106 is fixedly connected between the branch pipe 1103 and the detection table 8. Through the arrangement of the first sealing ring 1105, the edge of the insulator body 10 can be sealed. Through the arrangement of the second sealing ring 1106, the gap between the branch pipe 1103 and the detection table 8 can be sealed. Thus, through the arrangements of the first sealing ring 1105 and the second sealing ring 1106, a closed space can be formed inside the insulator body 10, which is convenient for conveying gas into the interior for detection.

[0028] Among them, a first air pressure sensor 1107 is fixedly connected inside the placement groove 1104, and a second air pressure sensor 1108 is fixedly connected inside the sealing shell 6. Through the first air pressure sensor 1107, the air pressure inside the insulator body 10 can be monitored to prevent the detected insulator from being damaged due to excessive air pressure. And through the second air pressure sensor 1108, the air pressure inside the sealing shell 6 can be monitored to facilitate judging whether the gas inside the insulator body 10 enters the sealing shell 6. If the insulator leaks air, the gas inside the insulator enters the sealing shell 6, so that the second air pressure sensor 1108 monitors an increase in the air pressure inside the sealing shell 6. If the insulator does not leak air, the gas inside the insulator does not enter the sealing shell 6, so that the second air pressure sensor 1108 monitors that the air pressure inside the sealing shell 6 remains unchanged. Based on this, the sealing performance of the insulator can be judged, and further whether the insulator detection is qualified can be judged.

[0029] Among them, the seal detection mechanism 11 further includes a through hole 1109. The through hole 1109 is formed at the bottom of the sealing shell 6. A third sealing ring 1110 is fixedly connected to the bottom of the sealing shell 6. The third sealing ring 1110 is located outside the through hole 1109. When the hydraulic rod 5 drives the sealing shell 6 to move downward, the through hole 1109 is located directly above the insulator body 10. Thus, the insulator can pass through the through hole 1109 and enter the sealing shell 6 until the bottom of the sealing shell 6 abuts against the surface of the detection table 8. And by using the third sealing ring 1110, the gap between the sealing shell 6 and the detection table 8 can be sealed to prevent external air from entering the sealing shell 6, ensuring the sealing performance inside the sealing shell 6 and improving the accuracy of the detection result of the device.

[0030] Among them, a pressing rod 1111 is slidably connected to the surface of the sealing shell 6. The number of pressing rods 1111 is set to be multiple, and the multiple pressing rods 1111 are symmetrically distributed about the center. Limiting plates 1112 are fixedly connected to both ends of the pressing rod 1111. A pressing spring 1113 is sleeved outside the pressing rod 1111. The pressing spring 1113 is located inside the sealing shell 6. The hydraulic rod 5 drives the sealing shell 6 to move downward until the limiting plate 1112 at the bottom of the pressing rod 1111 just abuts against the edge of the insulator body 10. And through the pressing action of the pressing spring 1113, the pressing rod 1111 drives the limiting plate 1112 at the bottom to firmly press the insulator body 10, so that the insulator body 10 can be firmly fixed, and it can be pressed against the first sealing ring 1105, improving the sealing performance inside the insulator body 10.

[0031] Among them, screening grooves 12 are formed on both sides of the top of the workbench 1. The number of screening grooves 12 is set to be two. A conveyor belt 13 is fixedly installed inside the two screening grooves 12. A baffle 14 is arranged on one side of the top of the screening groove 12. The baffle 14 is fixedly connected to the top of the workbench 1. An outlet plate 15 is fixedly connected to one side of the workbench 1. The outlet plate 15 is located at the output ports of the two screening grooves 12. An electronic slide rail 16 is fixedly connected to one side of the bottom of the support 2. A manipulator 17 is slidably connected to the bottom of the electronic slide rail 16. The detected insulator bodies 10 are respectively put into the screening grooves 12 on both sides according to whether they are qualified. Then the insulator bodies 10 are conveyed out through the conveyor belt 13 and processed by using the outlet plate 15. The baffle 14 can reduce the probability of the insulator body 10 falling out of the inside of the screening groove 12.

[0032] An insulator airtightness detection method includes the following steps: S1. The manipulator 17 is used to place the insulator on the detection table 8. Then the hydraulic rod 5 drives the sealing shell 6 to move downward to fix and seal the insulator. S2. The air pump 1101 is used to increase the air pressure inside the sealed insulator. The second air pressure sensor 1108 is used to monitor the air pressure inside the sealing shell 6. If the air pressure inside the sealing shell 6 increases, the insulator is detected as unqualified. If the air pressure inside the sealing shell 6 remains unchanged, the insulator is detected as qualified. S3. The printing mechanism 7 is used to print an unqualified label on the detected unqualified insulator. Then the qualified insulators do not need to be printed with labels. S4. The first electric telescopic rod 94 is started to move upward to push the insulator printed with the unqualified label into the screening groove 12 on one side. The first electric telescopic rod 94 is started to move downward to push the qualified insulators into the screening groove 12 on the other side. The insulators in the two screening grooves 12 are transported out and classified for processing through the conveyor belt 13.

[0033] Working principle: The insulator body 10 to be detected outside the device is placed in the placement groove 1104 on the detection table 8 by the manipulator 17. Then, the hydraulic cylinder 4 is started to make the hydraulic rod 5 move downward, so that the sealing shell 6 moves downward until the abutting rod 1111 abuts against the edge of the insulator body 10. Then, the air pump 1101 is started to work. The air pump 1101 transports gas through the air pipe 1102 to the branch pipe 1103, and the gas in the branch pipe 1103 enters the inside of the insulator body 10. At the same time, the first air pressure sensor 1107 and the second air pressure sensor 1108 transmit signals to the central control system 3. The central control system 3 makes a judgment and issues corresponding signals according to the changes in each air pressure and the speed of change. If the sealing performance of the insulator body 10 is qualified, it is monitored by the first air pressure sensor 1107 that the air pressure increase rate inside the insulator body 10 is relatively fast, and it is monitored by the second air pressure sensor 1108 that the air pressure inside the sealing shell 6 does not change. Then, the central control system 3 controls the sealing shell 6 to move upward to the original position, and controls the first electric telescopic rod 94 to move downward. Then, the detection table 8 tilts to one side and drops the qualified insulator body 10 into the screening groove 12 on one side. If the sealing performance of the insulator body 10 is unqualified, it is monitored by the first air pressure sensor 1107 that the air pressure increase rate inside the insulator body 10 is relatively slow, and it is monitored by the second air pressure sensor 1108 that the air pressure inside the sealing shell 6 increases. Then, the central control system 3 first controls the second electric telescopic rod 75 to move downward, so that the printing block 73 moves downward and prints an unqualified label on the unqualified insulator body 10. After that, the second electric telescopic rod 75 returns to the original position. Then, it controls the sealing shell 6 to move upward to the original position. Finally, it controls the first electric telescopic rod 94 to move upward. The first electric telescopic rod 94 drives the detection table 8 to tilt to the other side and drops the unqualified insulator body 10 into the screening groove 12 on the other side. Finally, the screened and classified insulator bodies 10 are all transported out of the device through the conveyor belt 13 in the screening groove 12 and centrally processed. When the manipulator 17 places the insulator body 10 into the detection table 8, first, the photoelectric sensor 95 monitors the placement groove 1104. When it is detected that the placement groove 1104 is empty, the central control system 3 controls the manipulator 17 to move on the electronic slide rail 16 and continue to pick up and place the insulator body 10 into this placement groove 1104.

[0034] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulator airtightness detection device, characterized in that, It includes a workbench (1), a bracket (2) is fixedly connected to the top of the workbench (1), a central control system (3) is fixedly connected to one side of the front of the workbench (1), a hydraulic cylinder (4) is fixedly installed on the top of the bracket (2), the output end of the hydraulic cylinder (4) is fixedly connected to a hydraulic rod (5), a sealing shell (6) is arranged at the bottom end of the hydraulic rod (5), a printing mechanism (7) is arranged on the surface of the sealing shell (6), an inspection table (8) is arranged at the bottom side of the sealing shell (6), the number of the sealing shells (6) and the inspection tables (8) is correspondingly provided with a plurality of, a screening and feeding mechanism (9) is jointly arranged between the plurality of inspection tables (8) and the workbench (1), an insulator body (10) is placed on the top of the inspection table (8), and a sealing detection mechanism (11) is jointly arranged between the sealing shell (6) and the inspection table (8); The printing mechanism (7) includes an ink cartridge (71), the ink cartridge (71) is fixedly connected to the top of the sealing shell (6), an ink delivery pipe (72) is connected to the bottom end of the ink cartridge (71), and the bottom end of the ink delivery pipe (72) passes through the top wall of the sealing shell (6) and is fixedly connected to a printing block (73); The screening and feeding mechanism (9) includes a U-shaped plate (91), the U-shaped plate (91) is fixedly connected to the top of the workbench (1), a rotating shaft (92) is fixedly connected to the inner side of the U-shaped plate (91), connecting pieces (93) are fixedly connected to both sides of the bottom of the inspection table (8), one of the connecting pieces (93) is rotatably connected to the surface of the rotating shaft (92), the bottom of the other connecting piece (93) is rotatably connected to a first electric telescopic rod (94), the bottom end of the first electric telescopic rod (94) is fixedly connected to the top of the workbench (1), and a photoelectric sensor (95) is fixedly connected to the front of the inspection table (8).

2. The airtightness detection device for an insulator according to claim 1, wherein: The printing mechanism (7) further includes a moving plate (74), the moving plate (74) is fixedly connected to the top of the printing block (73), and second electric telescopic rods (75) are jointly fixedly connected between the two sides of the top of the moving plate (74) and the inner top wall of the sealing shell (6).

3. An insulator airtightness detection device according to claim 1, characterized in that: A feeding pipe (76) is connected to one side of the top of the ink cartridge (71), and a sealing plug (77) is plugged at the top end of the feeding pipe (76).

4. An insulator airtightness detection device according to claim 1, characterized in that: The sealing detection mechanism (11) includes an air pump (1101), the air pump (1101) is fixedly connected to the top of the workbench (1), the output end of the air pump (1101) is connected to an air pipe (1102), one end of the air pipe (1102) penetrates through the inner walls of a plurality of inspection tables (8), and a branch pipe (1103) is fixedly connected to the top of the air pipe (1102).

5. An insulator airtightness detection device according to claim 4, characterized in that: A placement groove (1104) is formed at the top of the inspection table (8), the insulator body (10) is placed inside the placement groove (1104), the top end of the branch pipe (1103) passes through the inner wall of the inspection table (8) and extends into the insulator body (10), a first sealing ring (1105) is fixedly connected inside the placement groove (1104), and a second sealing ring (1106) is fixedly connected between the branch pipe (1103) and the inspection table (8).

6. The airtightness detection device for an insulator according to claim 5, wherein: A first air pressure sensor (1107) is fixedly connected inside the placement groove (1104), and a second air pressure sensor (1108) is fixedly connected inside the sealing shell (6).

7. An insulator airtightness detection device according to claim 1, characterized in that: The sealing detection mechanism (11) further includes a through hole (1109), the through hole (1109) is formed at the bottom of the sealing shell (6), a third sealing ring (1110) is fixedly connected to the bottom of the sealing shell (6), and the third sealing ring (1110) is located outside the through hole (1109).

8. An insulator airtightness detection device according to claim 1, characterized in that: A pressing rod (1111) is slidably connected to the surface of the sealing shell (6), the number of the pressing rods (1111) is set to be multiple, the multiple pressing rods (1111) are symmetrically distributed about the center, limiting plates (1112) are fixedly connected to both ends of the pressing rod (1111), a pressing spring (1113) is sleeved outside the pressing rod (1111), and the pressing spring (1113) is located inside the sealing shell (6).

9. An insulator airtightness detection device according to claim 1, characterized in that: Screening grooves (12) are formed on both sides of the top of the workbench (1), the number of the screening grooves (12) is set to be two, a conveyor belt (13) is fixedly installed inside the two screening grooves (12), a baffle (14) is arranged on one side of the top of the screening groove (12), the baffle (14) is fixedly connected to the top of the workbench (1), a discharge plate (15) is fixedly connected to one side of the workbench (1), the discharge plate (15) is located at the output ports of the two screening grooves (12), and an electronic slide rail (16) is fixedly connected to one side of the bottom of the support (2), and a manipulator (17) is slidably connected to the bottom of the electronic slide rail (16).

10. A method for detecting the air tightness of an insulator according to any one of claims 1-9, characterized in that, Including the following steps: S1. Place the insulator on the inspection table through the manipulator (17), and then the hydraulic rod (5) drives the sealing shell (6) to move downward to fix and seal the insulator; S2. Increase the air pressure inside the sealed insulator through the air pump (1101), and use the second air pressure sensor (1108) to monitor the air pressure inside the sealing shell (6). If the air pressure inside the sealing shell (6) increases, the insulator is detected as unqualified. If the air pressure inside the sealing shell (6) remains unchanged, the insulator is detected as qualified; S3. Print an unqualified label on the detected unqualified insulator through the printing mechanism, and then the qualified insulators do not need to be printed with labels; S4. Start the first electric telescopic rod (94) to move upward, push the insulators with unqualified labels to the screening trough (12) on one side, start the first electric telescopic rod (94) to move downward, push the qualified insulators to the screening trough (12) on the other side, and transport the insulators in the two screening troughs (12) out through the conveyor belt (13) for classification and processing.

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