Electromechanical detection device with adjusting structure

Abstract

The invention belongs to the technical field of electromechanical detection, and particularly relates to an electromechanical detection device with an adjusting structure, which comprises a base, a bracket, a first cylinder, a longitudinal moving mechanism, a second moving mechanism, a third moving mechanism, a fourth moving mechanism, a fourth moving mechanism, a fifth moving mechanism and a sixth moving mechanism, and is characterized in that the bracket is fixedly arranged at the top of the base, and the first cylinder is fixedly arranged at the top of the bracket; a box body is arranged at the bottom of the longitudinal moving mechanism, and a plurality of evenly-distributed second air cylinders are fixedly arranged in the box body. The device is provided with a clamping force adjusting structure, so that the damage such as indentation and depression of the to-be-detected cylinder body caused by too large clamping force is effectively avoided; meanwhile, the use frequency of the detected sealing ring can be accurately counted, replacement is automatically reminded when the specified frequency is reached, and the accuracy and reliability of detection work are ensured; in addition, the comparison detection cylinder is additionally arranged, the reason of an air leakage source can be accurately judged, the accuracy and effectiveness of a detection result are improved, and the quality and safety of import and export commodities are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of electromechanical detection, and in particular relates to an electromechanical detection device with an adjustment structure. Background Art

[0002] At a time when the automobile industry is booming, international trade is frequent. Automobile engines are the core components of automobiles, and cylinders are one of the core components of engines. Accurate detection of their quality and performance is crucial in the process of foreign trade transportation. Customs is shouldering the responsibility of ensuring the quality and safety of imported and exported goods. When customs detects automobile engines, electromechanical detection devices are indispensable tools.

[0003] The traditional electromechanical detection device includes a detection piston and a detection sealing ring. For example, the announcement number: CN220187950U discloses an engine cylinder gas leakage detection machine. When the existing electromechanical detection device performs the cylinder air tightness detection task, it is necessary to clamp and fix the engine cylinder to ensure the stability and accuracy of the detection process. However, most of the existing clamping devices adopt a fixed clamping force design, which cannot be flexibly adjusted according to cylinders of different models and materials. If the clamping force is too large, it may cause indentations and depressions on the surface of the cylinder, affecting the appearance quality of the cylinder; in addition, during the air tightness detection process, due to the complexity of the detection process and the variability of the detection environment, the sealing ring is prone to damage. Once the sealing ring is damaged such as cracks, peeling, hardening, etc., the gas will leak from the weak seal. When leakage occurs, it is difficult for customs personnel to determine whether the source of the leakage is scratches, strains and other defects on the inner wall of the cylinder itself, or damage to the sealing ring, resulting in deviations in the detection results, which cannot truly reflect the air tightness of the cylinder and cannot guarantee the quality and safety of imported and exported goods.

[0004] To this end, an electromechanical detection device with an adjustment structure is proposed. Summary of the invention

[0005] The object of the present invention is to provide an electromechanical detection device with an adjustment structure in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solution: an electromechanical detection device with an adjustment structure, comprising a base, a bracket and a first cylinder, wherein the bracket is fixedly arranged on the top of the base, the first cylinder is fixedly arranged on the top of the bracket, and further comprising:

[0007] A longitudinal moving mechanism is fixedly arranged at the moving end of the first cylinder, a box is arranged at the bottom of the longitudinal moving mechanism, a plurality of evenly distributed second cylinders are fixedly arranged inside the box, a detection rod is fixedly arranged at the moving end of the plurality of second cylinders, a detection piston is fixedly arranged at the lower end of the plurality of detection rods, a detection sealing ring is clamped on the circumferential wall of the plurality of detection pistons, and a shell is fixedly arranged at the bottom of the box and on one side of the plurality of detection rods;

[0008] A pressure sheet, arranged on one side of the inner part of the detection sealing ring;

[0009] An air leakage detection mechanism is arranged on the rod wall of the detection rod, and the air leakage detection mechanism is located above the detection piston;

[0010] A counting mechanism is disposed inside the housing and is used to count the number of times the detection sealing ring is used;

[0011] A gas leakage alarm mechanism is arranged inside the housing;

[0012] A test cylinder is fixedly arranged on the top of the base, and the test cylinder is arranged corresponding to the positions of the plurality of test pistons;

[0013] Two self-adjusting clamping mechanisms are symmetrically fixedly arranged on the top of the base, and the self-adjusting clamping mechanisms are located on one side of the inspection cylinder;

[0014] A PLC controller is fixedly arranged on the side wall of the bracket, and the first cylinder, the longitudinal moving mechanism, the second cylinder, the pressure sheet, the air leakage detection mechanism, the counting mechanism, the air leakage alarm mechanism and the self-adjusting clamping mechanism are all electrically connected to the PLC controller.

[0015] Preferably, the longitudinal moving mechanism includes a longitudinal slide rail fixedly arranged on the moving end of the first cylinder, a longitudinal slider is arranged inside the longitudinal slide rail, the bottom of the longitudinal slider is fixedly connected to the top of the box body, a motor is fixedly arranged on the inner wall of one end of the longitudinal slide rail, a screw is fixedly arranged on the output end of the motor, the longitudinal slider is threadedly connected to the screw, and travel switches are fixedly arranged on both sides of the interior of the longitudinal slide rail, and the trigger head of the travel switch can be arranged in contact with the side wall of the longitudinal slider.

[0016] Preferably, a slot is provided on one side of the surface of the detection sealing ring, and a positioning frame is fixedly provided inside the slot, and the pressure sheet is fixedly installed inside the positioning frame.

[0017] Preferably, the air leakage detection mechanism includes a fixed plate fixedly arranged on the detection rod, the lower surface of the fixed plate is provided with an annular mounting groove, and an elastic blowing film is fixedly arranged inside the annular mounting groove, and a first pressure sensor is fixedly embedded at the bottom of the detection piston.

[0018] Preferably, the counting mechanism includes an electromagnetic block fixedly arranged on the top inner wall of the shell, and a permanent magnet block is provided below the electromagnetic block, a first spring is fixedly arranged between the bottom of the permanent magnet block and the bottom inner wall of the shell, two sliding rods symmetrically fixedly arranged on the bottom inner wall of the shell and slidably connected to the permanent magnet block, a first mounting seat is fixedly arranged on the side wall of the permanent magnet block, a touch rod is vertically slidably provided inside the first mounting seat, a second spring is fixedly arranged between the lower end of the touch rod and the bottom of the first mounting seat, a touch switch is fixedly arranged on the inner side wall of the shell and at a position corresponding to the position of the touch rod, and a pulse counter is fixedly arranged inside the shell.

[0019] Preferably, the air leakage alarm mechanism includes an alarm indicator light fixedly arranged on the bottom of the shell, a second mounting seat is fixedly arranged on the side wall of the permanent magnet block, a touch head is fixedly arranged on the top of the second mounting seat, and an alarm trigger switch is fixedly arranged on the inner wall of the shell at a position corresponding to the position of the touch head.

[0020] Preferably, the self-adjusting clamping mechanism includes a support plate fixedly arranged on the top of the base, a third cylinder is fixedly arranged on the side wall of the support plate, a clamping plate is fixedly arranged on the movable end of the third cylinder, and a second pressure sensor is fixedly embedded on the side of the clamping plate.

[0021] Preferably, a same vacuum cleaner plate is provided on the top between the two clamping plates, a fourth cylinder is fixedly provided on one side of the two clamping plates, the movable ends of the two fourth cylinders are fixedly connected to the side walls of the vacuum cleaner plate, the vacuum cleaner plate adopts a hollow structure, and a plurality of evenly distributed vacuum cleaner holes are provided on the lower surface of the vacuum cleaner plate, a dust sensor is fixedly provided on the lower surface of the vacuum cleaner plate and on one side of the plurality of vacuum cleaner holes, a vacuum pump is fixedly provided on one side of the top of the base, and a soft vacuum cleaner pipe is fixedly provided between the suction end of the vacuum pump and the vacuum cleaner plate.

[0022] Preferably, a positioning groove is provided on the top of the base and between the two self-adjusting clamping mechanisms, and the cylinder to be inspected can be placed inside the positioning groove.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the self-adjusting clamping mechanism, the second pressure sensor is used to monitor the extrusion force between the clamping plate and the cylinder body to be tested in real time. When the preset threshold is reached, the PLC controller stops the action of the third cylinder, effectively avoiding damage such as indentation and dents to the cylinder body to be tested due to excessive clamping force, ensuring that the appearance quality of the cylinder body to be tested is not affected, improving the reliability and safety of the detection process, and reducing the cost of the cylinder body to be tested.

[0025] 2. Through the dust sensor, when the cylinder to be inspected is clamped and fixed, the PLC controller will automatically control the action of the third cylinder to move the vacuum cleaning plate to the top of the cylinder to be inspected and close to the cylinder opening of the cylinder to be inspected. At this time, the dust sensor can detect the cleanliness inside the cylinder. If there are dust impurities inside the cylinder of the cylinder to be inspected, the dust sensor will feedback an electrical signal to the PLC controller, and then the PLC controller will turn on the vacuum pump. The vacuum pump can suck out the internal gas of the soft dust suction tube and the vacuum cleaning plate, so that the inside of the vacuum cleaning plate is in a negative pressure state. The vacuum cleaning plate can suck out the dust impurities inside the cylinder of the cylinder to be inspected, thereby ensuring the accuracy of subsequent inspections.

[0026] 3. Through the set pressure sheet, when the detection seal ring is inserted into the cylinder with the detection piston, its side wall is in close contact with the inner wall of the cylinder, causing the pressure sheet to be deformed under pressure. In the same circuit connected to it, the current of the electromagnetic block decreases accordingly, and the magnetic field strength of the electromagnetic block weakens, and the repulsive force of the electromagnetic block on the permanent magnet block decreases, so that the permanent magnet block moves upward under the elastic force of the first spring. The movement of the permanent magnet block drives the touch rod on one side to contact the touch switch, triggering the touch switch to send a pulse signal to the pulse counter. The pulse counter completes a counting operation and feeds back the counting result to the PLC controller, which is finally presented on the controller display, realizing accurate statistics of the number of times the detection seal ring is used. Once the number reaches the preset value, the system will automatically remind the customs personnel to replace the detection seal ring in time to ensure the accuracy and reliability of the detection work.

[0027] 4. Through the elastic blowing film, when the sealing ring is damaged and leaking, the elastic blowing film will deform to change the relevant circuit parameters and trigger the alarm indicator, so that the customs personnel can quickly locate the damaged sealing ring; and when there is a problem with the inner wall of the cylinder, the circuit change caused by the same leakage can enable the customs personnel to accurately record the unqualified position, which greatly improves the accuracy and effectiveness of the test results, avoids delays in detection due to the inability to determine the source of the leak, and effectively saves the time cost of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereoscopic diagram of an electromechanical detection device with an adjustment structure provided by the present invention;

[0029] Figure 2 The present invention provides an electromechanical detection device with an adjustment structure. Figure 1 A schematic diagram of the front structure of

[0030] Figure 3 The present invention provides an electromechanical detection device with an adjustment structure. Figure 2 A schematic diagram of the side structure of

[0031] Figure 4 The present invention provides an electromechanical detection device with an adjustment structure. Figure 3 Schematic diagram of the structure of the longitudinal moving mechanism;

[0032] Figure 5 The present invention provides an electromechanical detection device with an adjustment structure. Figure 1 A three-dimensional diagram of the middle detection rod, detection piston and detection sealing ring;

[0033] Figure 6 The present invention provides an electromechanical detection device with an adjustment structure. Figure 5 A top view of the seal ring in the inspection;

[0034] Figure 7 The present invention provides an electromechanical detection device with an adjustment structure. Figure 2 Schematic diagram of the internal structure of the middle shell;

[0035] Figure 8 The present invention provides an electromechanical detection device with an adjustment structure. Figure 1 A bottom perspective view of the medium vacuum cleaning panel.

[0036] In the figure: 1 base, 2 bracket, 3 first cylinder, 4 longitudinal moving mechanism, 41 longitudinal slide rail, 42 longitudinal slider, 43 motor, 44 screw, 45 travel switch, 5 box, 6 second cylinder, 7 detection rod, 8 detection piston, 9 detection seal ring, 10 shell, 11 pressure sheet, 12 leakage detection mechanism, 121 fixed plate, 122 annular mounting groove, 123 elastic blowing film, 124 first pressure sensor, 13 counting mechanism, 131 electromagnetic block, 132 permanent magnet block, 133 first spring, 134 slide rod, 135 first mounting seat, 136 touch Touch rod, 137 second spring, 138 touch switch, 139 pulse counter, 14 air leakage alarm mechanism, 141 alarm indicator light, 142 second mounting seat, 143 touch head, 144 alarm trigger switch, 15 inspection cylinder, 16 self-adjusting clamping mechanism, 161 support plate, 162 third cylinder, 163 clamping plate, 164 second pressure sensor, 17 PLC controller, 18 slot, 19 positioning frame, 20 vacuum suction plate, 21 fourth cylinder, 22 vacuum suction hole, 23 dust sensor, 24 vacuum pump, 25 soft suction tube, 26 positioning groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0038] like Figure 1-Figure 8 As shown, an electromechanical detection device with an adjustment structure includes a base 1, a bracket 2 and a first cylinder 3, wherein the bracket 2 is fixedly arranged on the top of the base 1, and the first cylinder 3 is fixedly arranged on the top of the bracket 2, and further includes:

[0039] The longitudinal moving mechanism 4 is fixedly arranged at the moving end of the first cylinder 3. The longitudinal moving mechanism 4 includes a longitudinal slide rail 41 fixedly arranged on the moving end of the first cylinder 3. A longitudinal slider 42 is arranged inside the longitudinal slide rail 41. The bottom of the longitudinal slider 42 is fixedly connected to the top of the box body 5. A motor 43 is fixedly arranged on the inner wall of one end of the longitudinal slide rail 41. A screw 44 is fixedly arranged at the output end of the motor 43. The longitudinal slider 42 is threadedly connected to the screw 44. Travel switches 45 are fixedly arranged on both sides of the interior of the longitudinal slide rail 41, and the trigger head of the travel switch 45 can be arranged in contact with the side wall of the longitudinal slider 42. The motor 43 can drive the screw 44 to rotate synchronously when it works, so that the longitudinal slider 42 moves inside the longitudinal slide rail 41. When the longitudinal slider 42 moves to the left or right, it will contact the travel switches 45 on both sides respectively. The travel switch 45 can limit the moving distance of the longitudinal slider 42, thereby improving the accuracy of the movement.

[0040] A box body 5 is provided at the bottom of the longitudinal moving mechanism 4, and a plurality of evenly distributed second cylinders 6 are fixedly provided inside the box body 5. Detection rods 7 are fixedly provided at the moving ends of the plurality of second cylinders 6, and detection pistons 8 are fixedly provided at the lower ends of the plurality of detection rods 7. Detection sealing rings 9 are clamped on the circumferential walls of the plurality of detection pistons 8. A shell 10 is fixedly provided at the bottom of the box body 5 and on one side of the plurality of detection rods 7.

[0041] The pressure sheet 11 is arranged on one side of the inner part of the detection sealing ring 9. A slot 18 is opened on one side of the surface of the detection sealing ring 9, and a positioning frame 19 is fixedly arranged inside the slot 18. The pressure sheet 11 is fixedly installed inside the positioning frame 19 to prevent it from being displaced due to slight vibration of the detection sealing ring 9, thereby avoiding poor contact and signal fluctuations caused by position changes. During installation, the positioning frame 19 is accurately placed at the predetermined slot 18 position inside the detection sealing ring 9 to ensure that the positioning frame 19 and the detection sealing ring 9 are tightly matched and accurately positioned. Some auxiliary tools such as positioning pins, guide sleeves, etc. can be used to ensure the positioning accuracy, and then the pressure sheet 11 is stably placed on the positioning frame 19. Note that the direction and position of the pressure sheet 11 must meet the design requirements so that it can accurately feel the pressure and produce corresponding deformation when the detection sealing ring 9 is squeezed; if the damaged detection sealing ring 9 needs to be replaced, first remove the pressure sheet 11 from the inside of the positioning frame 19, and then reinstall it on the new detection sealing ring 9 for continued use.

[0042] The air leakage detection mechanism 12 is arranged on the rod wall of the detection rod 7, and the air leakage detection mechanism 12 is located above the detection piston 8. The air leakage detection mechanism 12 includes a fixed plate 121 fixedly arranged on the detection rod 7. The lower surface of the fixed plate 121 is provided with an annular mounting groove 122, and the inside of the annular mounting groove 122 is fixedly provided with an elastic blowing film 123. A first pressure sensor 124 is fixedly embedded at the bottom of the detection piston 8. The discharged gas is high-pressure gas with fast speed and high intensity. The gas will blow toward the elastic blowing film 123, causing the elastic blowing film 123 to deform, and the current passing through the electromagnetic block 131 is controlled by changing the resistance value.

[0043] The counting mechanism 13 is arranged inside the housing 10, and the counting mechanism 13 is used to count the number of times the detection sealing ring 9 is used. The counting mechanism 13 includes an electromagnetic block 131 fixedly arranged on the top inner wall of the housing 10, and a permanent magnet block 132 is arranged below the electromagnetic block 131. A first spring 133 is fixedly arranged between the bottom of the permanent magnet block 132 and the bottom inner wall of the housing 10. Two sliding rods 134 slidably connected to the permanent magnet block 132 are symmetrically fixed on the bottom inner wall of the housing 10. A first mounting seat 135 is fixedly arranged on the side wall of the permanent magnet block 132. A touch rod 136 is vertically slidably arranged inside the first mounting seat 135. The touch rod 136 is A second spring 137 is fixedly provided between the lower end of the rod 136 and the bottom of the first mounting seat 135, a touch switch 138 is fixedly provided on the inner wall of the shell 10 and at a position corresponding to the position of the touch rod 136, and a pulse counter 139 is fixedly provided inside the shell 10. When the internal current of the electromagnetic block 131 changes, the magnetic field generated by the electromagnetic block 131 and the magnetic field effect of the permanent magnet block 132 will also change, so that the degree to which the permanent magnet block 132 overcomes the squeezing of the first spring 133 is also different. When the magnetic field effect of the electromagnetic block 131 on the permanent magnet block 132 is reduced to a certain extent, the touch rod 136 will contact the touch switch 138.

[0044] The air leakage alarm mechanism 14 is arranged inside the shell 10. The air leakage alarm mechanism 14 includes an alarm indicator light 141 fixedly arranged at the bottom of the shell 10. A second mounting seat 142 is fixedly arranged on the side wall of the permanent magnet block 132. A touch head 143 is fixedly arranged on the top of the second mounting seat 142. An alarm trigger switch 144 is fixedly arranged on the inner wall of the shell 10 and corresponding to the position of the touch head 143. When the permanent magnet block 132 is continuously pushed upward by the first spring 133, the touch head 143 contacts the alarm trigger switch 144.

[0045] The inspection cylinder 15 is fixedly disposed on the top of the base 1 , and the inspection cylinder 15 and the plurality of detection pistons 8 are disposed at positions corresponding to each other.

[0046] Two self-adjusting clamping mechanisms 16 are symmetrically fixed on the top of the base 1, and the self-adjusting clamping mechanisms 16 are located on one side of the inspection cylinder 15. A positioning groove 26 is provided on the top of the base 1 and between the two self-adjusting clamping mechanisms 16, and the cylinder to be inspected can be placed inside the positioning groove 26. The positioning groove 26 can position and place the cylinder to be inspected. The self-adjusting clamping mechanism 16 includes a support plate 161 fixedly provided on the top of the base 1, and a third cylinder 162 is fixedly provided on the side wall of the support plate 161. A clamping plate 163 is fixedly provided on the moving end of the third cylinder 162, and a second pressure sensor 164 is fixedly embedded on the side of the clamping plate 163. When the third cylinder 162 is extended, it can drive the clamping plate 163 to contact the side wall of the cylinder to be inspected. When the third cylinder 162 continues to extend, the extrusion pressure between the clamping plate 163 and the cylinder to be inspected gradually increases. At this time, the second pressure sensor 164 can detect the size of the extrusion pressure in real time.

[0047] A vacuum cleaning plate 20 is provided on the top between the two clamping plates 163, and a fourth cylinder 21 is fixedly provided on one side of the two clamping plates 163. The movable ends of the two fourth cylinders 21 are fixedly connected to the side walls of the vacuum cleaning plate 20. The vacuum cleaning plate 20 adopts a hollow structure, and a plurality of evenly distributed vacuum cleaning holes 22 are opened on the lower surface of the vacuum cleaning plate 20. A dust sensor 23 is fixedly provided on the lower surface of the vacuum cleaning plate 20 and on one side of the plurality of vacuum cleaning holes 22. A vacuum pump 24 is fixedly provided on one side of the top of the base 1, and a soft suction pipe 25 is fixedly provided between the suction end of the vacuum pump 24 and the vacuum cleaning plate 20. The fourth cylinder 21 can drive the vacuum cleaning plate 20 to move, and the vacuum pump 24 can suck out the internal gas of the soft suction pipe 25 and the vacuum cleaning plate 20, so that the interior of the vacuum cleaning plate 20 is in a negative pressure state. Under the high negative pressure suction state, the vacuum cleaning plate 20 can suck out the dust and impurities inside the cylinder of the cylinder body to be detected.

[0048] The PLC controller 17 is fixedly mounted on the side wall of the bracket 2 , and the first cylinder 3 , the longitudinal moving mechanism 4 , the second cylinder 6 , the pressure sheet 11 , the air leakage detection mechanism 12 , the counting mechanism 13 , the air leakage alarm mechanism 14 and the self-adjusting clamping mechanism 16 are all electrically connected to the PLC controller 17 .

[0049] The operating principle of the present invention is described as follows: the customs personnel shall first carefully inspect the appearance of the engine cylinder body to check whether there is obvious physical damage on its surface, such as cracks, holes, deformation, etc. If found, detailed records shall be made. If no obvious physical damage is found on the surface, the cylinder body to be inspected shall be placed inside the positioning groove 26, and then the PLC controller 17 shall be manually operated to control the third cylinder 162 on both sides to work. When the third cylinder 162 is extended, it can drive the clamping plate 163 to contact the side wall of the cylinder body to be inspected. When the third cylinder 162 continues to extend, The extrusion force between the clamping plate 163 and the cylinder body to be tested gradually increases. At this time, the second pressure sensor 164 can detect the size of the extrusion force in real time. When the electrical signal corresponding to the extrusion force detected by the second pressure sensor 164 is transmitted to the PLC controller 17, and the signal reaches the threshold value set in the PLC controller 17, the second pressure sensor 164 will feed back an electrical signal to the PLC controller 17, so that the PLC controller 17 stops the action of the third cylinder 162, thereby being able to adjust the clamping force of the cylinder body to be tested, avoiding the phenomenon of causing indentations and depressions and affecting the appearance quality;

[0050] After the cylinder to be inspected is clamped and fixed, the PLC controller 17 automatically controls the fourth cylinder 21 to move, so that the vacuum cleaning plate 20 moves to the top of the cylinder to be inspected and close to the cylinder opening of the cylinder to be inspected. At this time, the dust sensor 23 can detect the cleanliness of the inside of the cylinder [the dust sensor 23 adopts an optical sensor. When light is irradiated into the inside of the cylinder, if there are dust impurities, the reflection and scattering of the light will change. The cleanliness of the inside of the cylinder is judged by detecting the changes in parameters such as the intensity and angle of the reflected light and the scattered light]. If there are dust impurities inside the cylinder of the cylinder to be inspected, the dust sensor 23 will send a signal to the PLC controller 17. The C controller 17 feeds back an electrical signal, and then the PLC controller 17 turns on the vacuum pump 24 to work. The vacuum pump 24 can suck out the internal gas of the soft dust suction pipe 25 and the vacuum dust suction plate 20, so that the interior of the vacuum dust suction plate 20 is in a negative pressure state. The vacuum dust suction plate 20 can suck out the dust and impurities inside the cylinder of the cylinder body to be detected. Until the dust and impurities are sucked out, the PLC controller 17 stops the vacuum pump 24 and controls the fourth cylinder 21 to move, so that the vacuum dust suction plate 20 is moved away from the top of the cylinder body to be detected. If there is no dust and impurities inside the cylinder of the cylinder body to be detected, the PLC controller 17 does not need to turn on the vacuum pump 24 to work;

[0051] After the cylinder of the cylinder body to be inspected is cleaned, the PLC controller 17 will immediately control the motor 43 to work, and the motor 43 can drive the screw 44 to rotate synchronously, so that the longitudinal slider 42 moves inside the longitudinal slide rail 41, thereby driving the detection rod 7, the detection piston 8 and the detection sealing ring 9 at the bottom of the box body 5 to move toward the direction of the inspection cylinder body 15, until the detection rod 7, the detection piston 8 and the detection sealing ring 9 move to the top of the inspection cylinder body 15, at this time, the longitudinal slider 42 contacts with the travel switch 45 on one side, so that the trigger head of the travel switch 45 is squeezed, and the travel switch 45 is triggered. Feedback an electrical signal to the PLC controller 17, so that the PLC controller 17 immediately stops the motor 43, and then the PLC controller 17 controls the first cylinder 3 to extend, and the first cylinder 3 pushes the multiple groups of detection rods 7, the detection piston 8 and the detection sealing ring 9 upward to move, so that the detection rod 7, the detection piston 8 and the detection sealing ring 9 are inserted into the cylinder of the inspection cylinder body 15 for detecting the seal. The air tightness of the sealing ring 9 is tested [because the cylinder inner wall of the test cylinder 15 is intact and the air tightness of the cylinder is intact, when the test sealing ring 9 is inserted into the inside of the cylinder, if the test sealing ring 9 is not damaged, there will be no leakage. This is the test control group. If the test sealing ring 9 is damaged due to cracks, peeling, hardening, etc., there will be leakage. At this time, the customs personnel will replace the test sealing ring 9 and use it to test the cylinder to be tested]. During the insertion process of the test rod 7, the test piston 8 and the test sealing ring 9, the internal gas at the cylinder position of the cylinder to be tested is continuously compressed. At this time, the detection value of the first pressure sensor 124 gradually increases. If there are small cracks, holes, deformation and other defects on the inner wall of the cylinder, there will be leakage between the test sealing ring 9 and the inner wall of the cylinder, thereby causing the internal air pressure of the cylinder of the cylinder to be tested to decrease. At this time, the detection value of the first pressure sensor 124 will decrease, so that it can be judged whether the air tightness of the cylinder to be tested is qualified;

[0052] When the detection seal ring 9 is inserted into the cylinder along with the detection piston 8, the side wall of the detection seal ring 9 will contact the inner wall of the cylinder, so that the detection seal ring 9 and the pressure sheet 11 inside it are squeezed and deformed. When the pressure sheet 11 is deformed, its own resistance value will increase. [The pressure sheet 11 is made of semiconductor material. When it is not under pressure, the carriers inside it are in a relatively stable state of motion in the lattice, and the resistance value remains at a certain level. When it is deformed under pressure, the lattice structure will be distorted. This distortion will cause the mobility of the carriers to decrease, which increases its own resistance value. The detection rod 7, the detection piston 8 and the detection seal ring 9 are in During the movement, the flowing gas will also cause the pressure sheet 11 to produce a slight deformation. Compared with the high-pressure gas, this slight deformation can be ignored. The resistance value increases, and the circuit current decreases. The changed current signal is amplified by the amplifier circuit and sent to the PLC controller 17. The PLC controller 17 then controls the current passed to the electromagnetic block 131 to decrease, so that the magnetic field strength of the electromagnetic block 131 itself is reduced, and the repulsive force of the electromagnetic block 131 on the permanent magnet block 132 is weakened. [According to Ampere's molecular current hypothesis, there are molecular currents inside the magnet, and these molecular currents are equivalent to tiny magnets. In the permanent magnet block 132, the orientations of these molecular currents are relatively orderly, making it magnetic as a whole. The magnetic field generated by the electromagnetic block 131 interacts with the magnetic field of the permanent magnet block 132. When the directions of the magnetic fields of the two are the same, according to the interaction law between magnetic poles, the same magnetic poles repel each other, and the electromagnetic block 131 will generate a repulsive force on the permanent magnet block 132, resulting in a decrease in the degree to which the permanent magnet block 132 overcomes the squeezing of the first spring 133, thereby increasing the distance that the first spring 133 pushes the permanent magnet block 132 upward, and the permanent magnet block 132 will also drive the touch rod 136 on one side to contact the touch switch 138, and the touch switch 13 After being triggered, 8 will send a pulse signal to the pulse counter 139, so that the pulse counter 139 generates a counting action, and the pulse counter 139 then feeds back an electrical signal to the PLC controller 17, and displays the counting result on the display of the PLC controller 17, so that the number of times the detection seal ring 9 is used can be counted. If the number of times the detection seal ring 9 is used reaches a certain number, the customs personnel will be reminded to replace the detection seal ring 9 to ensure the detection effect. After the new detection seal ring 9 is replaced, the customs personnel can operate the PLC controller 17 to restart the pulse counter 139 and return it to zero;

[0053] When the leaked compressed gas is discharged upward through the damaged part of the detection sealing ring 9, the discharged gas will blow to the elastic blowing film 123, causing the elastic blowing film 123 to deform [due to the squeezing effect of the detection piston 8 and the detection sealing ring 9, the gas discharged from the cylinder is fast and strong, so the elastic blowing film 123 can be greatly deformed], and the elastic blowing film 123's own resistance value increases [the elastic blowing film 123 is a material composed of a polymer and a conductive filler. When it is deformed by the external force of high-pressure gas, its internal microstructure will change significantly. The stretching or bending of the elastic blowing film 123 will cause the distance between the conductive fillers to increase, and the connection between the conductive particles that were originally in contact with each other or close to each other will become loose or even disconnected, thereby hindering the flow of electrons and causing the resistance to increase]. The resistance value increases, the circuit current decreases, and the changed current signal is amplified in proportion by the amplifier circuit and sent to the PL C controller 17, and then the PLC controller 17 controls the current passed to the electromagnetic block 131 to further decrease, and the repulsive force of the electromagnetic block 131 on the permanent magnet block 132 is further weakened, so that the distance that the permanent magnet block 132 is pushed upward by the first spring 133 is further increased, until the touch head 143 contacts the alarm trigger switch 144 [the touch rod 136 on the other side of the permanent magnet block 132 contacts the touch switch 138 first, which will make the touch rod 136 overcome the elastic force of the second spring 137 and slide, so as to avoid the touch switch 138 hindering the permanent magnet block 132 from continuing to move upward]. At this time, the alarm trigger switch 144 will feedback an electrical signal to the PLC controller 17, and the PLC controller 17 controls the alarm indicator light 141 to light up, which is used to remind the customs personnel that the detection seal ring 9 is damaged. Since the alarm indicator light 141 is set on one side of each detection seal ring 9, the customs personnel can correspondingly determine the position of the damaged detection seal ring 9;

[0054] After the inspection of the sealing ring 9 to be tested is completed, the customs personnel manually operate the PLC controller 17, so that the PLC controller 17 controls the retraction of the first cylinder 3, and controls the motor 43 to rotate in the opposite direction, driving the detection rod 7, the detection piston 8 and the detection sealing ring 9 to move to the top of the cylinder body to be tested and then stop. Then the PLC controller 17 immediately controls the first cylinder 3 to extend, so that multiple groups of detection rods 7, detection pistons 8 and detection sealing rings 9 are inserted into the cylinder of the cylinder body to be tested. During the insertion process, the counting mechanism 13 will count the number of times the detection sealing ring 9 is used. If there are scratches, strains and other defects on the inner wall of the cylinder of the cylinder body to be tested, it will cause air leakage between the detection sealing ring 9 and the inner wall of the cylinder of the cylinder body to be tested. The leaked gas will blow to the elastic blowing film 123, and then the cylinder at the corresponding position will be alarmed by the air leakage alarm mechanism 14. An alarm is sounded to remind the customs personnel that the air tightness of the cylinder here is unqualified. The customs personnel note the position of the cylinder to be tested that is unqualified and manually operate the PLC controller 17 to retract the first cylinder 3 and move multiple groups of detection rods 7, detection pistons 8 and detection sealing rings 9 out of the interior of the cylinder to be tested [Before the test begins, the sealing performance of the detection sealing ring 9 is first tested to ensure that the cylinder to be tested is tested when the detection sealing ring 9 is not damaged, eliminating the influence of the damage of the detection sealing ring 9 on the test result]. At the same time, the PLC controller 17 is operated to control the retraction of the second cylinder 6 corresponding to the cylinder inner wall that is not damaged. The second cylinder 6 drives the corresponding detection rod 7, detection piston 8 and detection sealing ring 9 to move upward, while the detection rod 7, detection piston 8 and detection sealing ring 9 corresponding to the cylinder inner wall that is damaged remain unchanged;

[0055] When the cylinder air tightness test of the cylinder body to be tested is completed, the customs personnel operate the PLC controller 17 to move the detection rod 7, the detection piston 8 and the detection sealing ring 9 to the top of the test cylinder body 15 again, and insert the detection rod 7, the detection piston 8 and the detection sealing ring 9 above the damaged cylinder inner wall into the cylinder of the test cylinder body 15, and perform a final side test on the sealing of the detection sealing ring 9, thereby ensuring the result of the air tightness test of the cylinder body to be tested [such a design is to reduce the number of times the detection sealing ring 9 is used at other positions and reduce the loss of the material of the detection sealing ring 9]. After the test is completed, the detection rod 7, the detection piston 8 and the detection sealing ring 9 are moved upward and the cylinder body to be tested is taken out from the self-adjusting clamping mechanism 16 [if leakage occurs in the last test, it means that the detection sealing ring 9 is damaged in the previous test process. The customs personnel can rework and retest to avoid inaccurate air tightness test results of the cylinder body to be tested, but the probability of this happening is small, because the difference between the two is only that the detection sealing ring 9 is squeezed one more time].

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromechanical detection device with an adjustment structure, comprising a base (1), a bracket (2) and a first cylinder (3), wherein the bracket (2) is fixedly arranged on the top of the base (1), and the first cylinder (3) is fixedly arranged on the top of the bracket (2), characterized in that: Also includes: A longitudinal moving mechanism (4) is fixedly arranged at the moving end of the first cylinder (3); a box (5) is arranged at the bottom of the longitudinal moving mechanism (4); a plurality of evenly distributed second cylinders (6) are fixedly arranged inside the box (5); a detection rod (7) is fixedly arranged at the moving end of each of the plurality of second cylinders (6); a detection piston (8) is fixedly arranged at the lower end of each of the plurality of detection rods (7); a detection sealing ring (9) is clamped on the circumferential wall of each of the plurality of detection pistons (8); a shell (10) is fixedly arranged at the bottom of the box (5) and on one side of each of the plurality of detection rods (7); A pressure sheet (11) is arranged on one side of the inner part of the detection sealing ring (9); An air leakage detection mechanism (12) is arranged on the rod wall of the detection rod (7); A counting mechanism (13) is arranged inside the housing (10); A gas leakage alarm mechanism (14) is arranged inside the housing (10); An inspection cylinder (15) is fixedly arranged on the top of the base (1); Two self-adjusting clamping mechanisms (16) are symmetrically fixedly arranged on the top of the base (1); A PLC controller (17) is fixedly arranged on the side wall of the bracket (2); the first cylinder (3), the longitudinal moving mechanism (4), the second cylinder (6), the pressure sheet (11), the air leakage detection mechanism (12), the counting mechanism (13), the air leakage alarm mechanism (14) and the self-adjusting clamping mechanism (16) are all electrically connected to the PLC controller (17).

2. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: The longitudinal moving mechanism (4) comprises a longitudinal slide rail (41) fixedly arranged on the moving end of the first cylinder (3), a longitudinal slider (42) being arranged inside the longitudinal slide rail (41), the bottom of the longitudinal slider (42) being fixedly connected to the top of the box (5), a motor (43) being fixedly arranged on the inner wall of one end of the longitudinal slide rail (41), a screw rod (44) being fixedly arranged at the output end of the motor (43), the longitudinal slider (42) being threadedly connected to the screw rod (44), and travel switches (45) being fixedly arranged on both sides of the interior of the longitudinal slide rail (41), and a trigger head of the travel switch (45) being arranged in contact with the side wall of the longitudinal slider (42).

3. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: A slot (18) is provided on one side of the surface of the detection sealing ring (9), and a positioning frame (19) is fixedly provided inside the slot (18), and the pressure sheet (11) is fixedly installed inside the positioning frame (19).

4. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: The air leakage detection mechanism (12) comprises a fixed plate (121) fixedly arranged on the detection rod (7), an annular mounting groove (122) is provided on the lower surface of the fixed plate (121), and an elastic blowing film (123) is fixedly arranged inside the annular mounting groove (122), and a first pressure sensor (124) is fixedly embedded at the bottom of the detection piston (8).

5. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: The counting mechanism (13) comprises an electromagnetic block (131) fixedly arranged on the top inner wall of the housing (10), and a permanent magnet block (132) is arranged below the electromagnetic block (131), a first spring (133) is fixedly arranged between the bottom of the permanent magnet block (132) and the bottom inner wall of the housing (10), and two sliding rods (134) slidably connected to the permanent magnet block (132) are symmetrically fixedly arranged on the bottom inner wall of the housing (10), and the permanent magnet block (132) A first mounting seat (135) is fixedly provided on the side wall of the housing (10); a touch rod (136) is vertically slidably provided inside the first mounting seat (135); a second spring (137) is fixedly provided between the lower end of the touch rod (136) and the bottom of the first mounting seat (135); a touch switch (138) is fixedly provided on the inner side wall of the housing (10) at a position corresponding to the position of the touch rod (136); and a pulse counter (139) is fixedly provided inside the housing (10).

6. The electromechanical detection device with an adjustment structure according to claim 5, characterized in that: The gas leakage alarm mechanism (14) comprises an alarm indicator light (141) fixedly arranged at the bottom of the shell (10); a second mounting seat (142) is fixedly arranged on the side wall of the permanent magnet block (132); a touch head (143) is fixedly arranged on the top of the second mounting seat (142); and an alarm trigger switch (144) is fixedly arranged on the inner side wall of the shell (10) at a position corresponding to the position of the touch head (143).

7. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: The self-adjusting clamping mechanism (16) comprises a support plate (161) fixedly arranged on the top of the base (1), a third cylinder (162) being fixedly arranged on the side wall of the support plate (161), a clamping plate (163) being fixedly arranged on the movable end of the third cylinder (162), and a second pressure sensor (164) being fixedly embedded on the side surface of the clamping plate (163).

8. The electromechanical detection device with an adjustment structure according to claim 7, characterized in that: A vacuum cleaning plate (20) is provided at the top between the two clamping plates (163), a fourth cylinder (21) is fixedly provided on one side of the two clamping plates (163), the movable ends of the two fourth cylinders (21) are fixedly connected to the side wall of the vacuum cleaning plate (20), the vacuum cleaning plate (20) adopts a hollow structure, and a plurality of evenly distributed vacuum cleaning holes (22) are opened on the lower surface of the vacuum cleaning plate (20), a dust sensor (23) is fixedly provided on the lower surface of the vacuum cleaning plate (20) and on one side of the plurality of vacuum cleaning holes (22), a vacuum pump (24) is fixedly provided on one side of the top of the base (1), and a soft dust cleaning pipe (25) is fixedly provided between the suction end of the vacuum pump (24) and the vacuum cleaning plate (20).

9. The electromechanical detection device with an adjustment structure according to claim 1, characterized in that: A positioning groove (26) is provided at the top of the base (1) and between the two self-adjusting clamping mechanisms (16), and a cylinder to be inspected can be placed inside the positioning groove (26).

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