Rotary leak detection equipment

Abstract

The invention relates to rotary leak detection equipment, and relates to the technical field of industrial detection, the rotary leak detection equipment comprises a rotary detection device for double-station alternate detection and a water injection device, the rotary detection device comprises a rotating assembly, two mounting assemblies symmetrically mounted on two sides of the rotating assembly, and a driving assembly, the mounting assemblies are located in the circumferential direction of a rotating shaft of the rotating assembly, and two detection stations are correspondingly arranged on the two mounting assemblies; the water injection device comprises a water circulation assembly which is used for conveying water in the detected workpiece on the lower detection station to the to-be-detected workpiece on the upper detection station. The method has the effects of shortening the detection preparation time and improving the detection efficiency.

Description

Technical Field

[0001] This invention relates to the field of industrial testing technology, and in particular to a rotary leak detection device. Background Technology

[0002] Leakage testing is a crucial step in the entire industrial production process (R&D, mass production, quality control, and operation and maintenance). Its core purpose is to verify the leak-proof capability of the workpiece to ensure product quality, operational safety, performance stability, and resource efficiency.

[0003] Current testing methods typically involve sealing the through holes of the workpiece to create an internal seal, then injecting water into the workpiece and observing whether water seeps out from the seal to test the workpiece's airtightness.

[0004] However, in the existing testing methods, after a workpiece is tested, all the water needs to be poured out, a new workpiece needs to be installed, and water needs to be injected back into the workpiece to continue the testing process, which makes the testing time long and the testing efficiency low. Summary of the Invention

[0005] To shorten detection time and improve detection efficiency, this invention provides a rotary leak detection device.

[0006] The present invention provides a rotary leak detection device, which adopts the following technical solution: A rotary leak detection device includes a rotary detection device with dual-station alternating detection and a water injection device connected to the rotary detection device for delivering water into the workpiece to be tested. The rotary detection device includes a rotating assembly that drives the workpiece to rotate, two mounting assemblies symmetrically mounted on both sides of the rotating assembly for placing the workpiece to form a sealed state, and a drive assembly connected to the rotating assembly to provide driving force. The mounting assemblies are located circumferentially on the axis of rotation of the rotating assembly, and two detection stations are correspondingly provided on the two mounting assemblies. The water injection device includes a water circulation component for circulating water from the tested workpiece to the workpiece to be tested, and a water replenishment component for supplying water to the workpiece to be tested. The water replenishment component is connected to an external water supply device.

[0007] By adopting the above technical solution, the workpiece is sealed and placed on the upper mounting component. The external water supply device is activated to inject water into the workpiece through the water replenishment component. The drive component is activated to drive the rotating component to rotate, thereby rotating the workpiece. The water inside the workpiece fully submerges the sealing area. The sealing area is observed for leakage to perform a sealing test. After the test is completed, the drive component drives the workpiece to rotate 180° to rotate the lower testing station to the upper one. A new workpiece is placed in the upper testing station. The water circulation component is activated to transfer the water in the lower tested workpiece to the upper workpiece. This realizes the recycling of water inside the tested workpiece. There is no need to drain the water from the tested workpiece and then inject water into the workpiece to be tested, which shortens the test preparation time and improves the test efficiency.

[0008] Optionally, the rotating assembly includes a support frame for providing support force and a rotating seat rotatably mounted on the support frame for mounting the mounting assembly. The rotating seat is connected to the drive assembly and rotates along the support frame under the drive of the drive assembly.

[0009] By adopting the above technical solution, the drive assembly drives the rotating seat to rotate along the support frame. During the inspection process, the tilt angle of the workpiece can be adjusted so that the water inside the workpiece can fully immerse the different sealing inspection points, thereby improving the inspection effect. At the same time, the rotation of the rotating seat allows for the use of two mounting components to form workpieces that can be used alternately, thereby improving work efficiency.

[0010] Optionally, the mounting assembly includes a mounting base plate for placing the workpiece, a positioning post mounted on the mounting base plate for limiting the workpiece, a sealing gasket mounted on the mounting base plate for sealing the open end of the workpiece, a rotary pressing cylinder for driving the workpiece to press against the mounting base plate, and a sealing component for pressing against and covering the side holes of the workpiece to seal the side holes. The mounting base plate is fixedly mounted on both sides of the rotating seat.

[0011] By adopting the above technical solution, the workpiece is placed with its opening facing down in the inspection station on the mounting base plate. The workpiece opening fits against the sealing gasket to achieve initial sealing. The positioning column limits the workpiece. The rotating pressing cylinder is activated to fix the workpiece. The clamping cylinder is activated to drive the sealing head to seal the side holes of the workpiece, thus achieving sealing inside the workpiece.

[0012] Optionally, the water circulation assembly includes a bidirectional conveying component installed in the rotating seat for pumping water, an adjusting component installed in the mounting base and connected to one end of the bidirectional conveying component, and an abutting component communicating with the adjusting component and abutting against the inner wall of the workpiece. The bidirectional conveying component, the adjusting component, and the abutting component form a complete water path to convey water from the workpiece after testing to the workpiece to be tested. The abutting component includes a telescopic abutting tube with one end retractable, a limiting protective sleeve installed on the outside of the telescopic abutting tube to limit the telescopic abutting tube's telescopic direction of extension, and a second spring sleeved on the circumferential outside of the telescopic abutting tube and located between the telescopic abutting tube and the limiting protective sleeve to drive the telescopic abutting tube to press against the inner wall of the workpiece. One end of the telescopic abutting tube is connected to the adjusting component, and the other end of the telescopic abutting tube abuts against the inner wall of the workpiece, with a water passage opening at its edge for water to flow through.

[0013] By adopting the above technical solution, during the workpiece placement process, the inner wall of the workpiece abuts against one end of the telescopic abutment tube and continues to compress the telescopic abutment tube as the workpiece is placed. The second spring drives the telescopic abutment tube to always abut against the inner wall of the workpiece. When the water circulation component transfers the water in the workpiece after testing to the workpiece to be tested, the water flows into the telescopic abutment tube through the water passage opening on the side of the telescopic abutment tube below, so that the water at the lower water level in the workpiece can be transported by the water circulation component.

[0014] Optionally, the adjusting component includes a rotating disk rotatably mounted in the mounting base plate to connect the bidirectional conveying component with the telescopic abutment pipe, a steel ball disposed on the circumferential outer side of the rotating disk, and a first spring that drives the steel ball to abut against the rotating disk. The rotating disk is uniformly provided with a plurality of slots for the steel ball to abut and be fixed.

[0015] By adopting the above technical solution, the rotating disk rotates, the steel ball compresses the first spring and moves from one slot to another to continue to limit the movement. The rotating disk drives the telescopic abutment pipe to move to the designated cavity position inside the workpiece, so that the water circulation component can fully transport water to different cavities inside the workpiece when pumping water, while avoiding damage to the workpiece caused by the rotation of the rotating disk under natural conditions.

[0016] Optionally, the rotating base has a water inlet passage for supplying water to the workpiece to be inspected. The water inlet passage has two outlets that extend towards the mounting base and are used for water supply. The water replenishment assembly includes a water guide slip ring connected to the rotating base to reduce the rotation of the water inlet passage with the rotating base, a one-way water blocking column located at the outlet to restrict the direction of water flow, a snap ring installed at the outlet of the water inlet passage to cooperate with the one-way water blocking column to block the water inlet passage, and a one-way valve installed at the outlet of the water inlet passage to restrict the one-way flow of water to the workpiece to be inspected. The mounting base has a water replenishment tank connected to the water inlet passage and used to uniformly deliver water to the inside of the workpiece to be inspected. The water guide slip ring is connected to an external water supply device.

[0017] By adopting the above technical solution, the one-way water-blocking column moves downward along the limiting component under the action of gravity, and cooperates with the sealing ring to abut and seal the lower snap-fit ​​ring. There is a gap between the one-way water-blocking column and the upper snap-fit ​​ring to allow water to flow through. When the external water supply equipment is activated, water passes through the water guide slip ring, the water inlet passage, the upper snap-fit ​​ring, and the upper one-way valve in sequence into the water replenishment tank of the mounting base plate, and flows along the water replenishment tank to various areas inside the workpiece to complete the water injection. The water guide slip ring is designed to prevent the external water supply equipment from getting tangled when it rotates with the rotating seat at the water supply connection part. The one-way water-blocking column ensures that the water flow always enters the upper workpiece through the gap between the one-way water-blocking column and the upper snap-fit ​​ring for detection. The one-way valve prevents water inside the workpiece from flowing back into the water inlet passage.

[0018] Optionally, it also includes a drying device for drying the workpiece after inspection, the drying device including a blower assembly that blows hot air to remove residual water and an arc-shaped adjustment assembly connected to the blower assembly to drive it to move around the rotating inspection device. The arc-shaped adjustment assembly includes a movable component connected to the blowing assembly to drive its movement, and an arc-shaped track surrounding the outer side of the axis of the rotation detection device and allowing the movable component to move.

[0019] By adopting the above technical solution, the moving component is activated to drive the blower assembly to move along the arc-shaped track, thereby adjusting the orientation of the blower assembly and improving the drying effect of the blower assembly.

[0020] Optionally, the blowing assembly includes an air outlet connected to an external ventilation device to deliver hot air and a linear module that drives the air outlet to move horizontally back and forth. The two ends of the linear module are respectively connected to the moving component and follow it to move around the rotating detection device.

[0021] By adopting the above technical solution, the external ventilation equipment is activated to spray hot air through the air outlet to the inspection station below, so as to dry the inside of the workpiece after inspection and avoid residual water from damaging the workpiece.

[0022] Optionally, a discharge device for automatically unloading the detected workpiece is also provided below the rotary detection device. The discharge device includes a lifting component that drives the workpiece to move in the vertical direction and a pushing component that pushes the workpiece on the lifting component horizontally for unloading. The lifting assembly includes a support plate for supporting the workpiece after inspection, a suction cup disposed on the side of the support plate near the workpiece after inspection for fixing the workpiece after inspection, and a lifting cylinder for driving the support plate to move in the vertical direction. The suction cup is connected to an external air extraction device.

[0023] By adopting the above technical solution, the lifting cylinder is activated to move the support plate and suction cup upward. When the suction cup is attached to the end face of the workpiece after inspection, the external air extraction device is activated to extract the air in the suction cup so that the suction cup is attached to the workpiece and fixed. Then the lifting cylinder is activated to move the workpiece downward to be attached to the pushing component. The workpiece can be transferred stably, and the air outlet can be used to dry the workpiece better.

[0024] Optionally, the pushing assembly includes a pusher plate that pushes the workpiece from the side to move it horizontally, a pusher cylinder connected to the pusher plate to drive it to move horizontally, and a sliding frame that supports the workpiece sliding off the support plate for unloading.

[0025] By adopting the above technical solution, after drying, the pusher cylinder is activated to drive the pusher plate to fit against the side wall of the workpiece, and the operation continues to move the workpiece along the sliding frame to unload it, thus realizing automated unloading and reducing labor costs.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. After the upper workpiece is inspected, the drive component rotates the workpiece 180° to move the lower inspection station to the upper one. The new workpiece is placed in the upper inspection station, and the water circulation component is activated to transfer the water in the lower workpiece to the upper workpiece. This realizes the recycling of water inside the inspected workpiece. There is no need to drain the water from the inspected workpiece and then inject water into the workpiece to be inspected, which shortens the preparation time for inspection and improves the inspection efficiency. 2. After the workpiece is placed, the second spring pushes one end of the telescopic abutment tube to move toward the workpiece so that the end of the telescopic abutment tube abuts against the inner wall of the workpiece. The side water passage notch of the telescopic abutment tube is used for water flow, so that the peristaltic pump can pump the water at the lower water level in the workpiece below when delivering water, reducing the water residue inside the workpiece after inspection, thereby reducing the amount of water replenishment and reducing the difficulty of drying. 3. During the inspection process, if water seepage occurs at the through-hole of the workpiece, the moving component is activated to move the air blowing assembly to the seepage point. The air blowing assembly is then activated to dry the water. Observation continues. If water seepage continues, it indicates insufficient sealing. If water seepage stops, it indicates that the water is residue from the previous inspection. After the inspection is completed, the water inside the workpiece is transferred to the workpiece to be inspected. The moving component is then activated to move the air blowing assembly along the arc track to one side to avoid the seepage. The lifting assembly is activated to move the workpiece down onto the pushing assembly. The external ventilation equipment is activated to spray hot air through the air outlet to dry the inside of the workpiece. The above steps improve the accuracy of the inspection, avoid misjudgment caused by residual moisture, and allow for drying of the inspected workpiece to prevent damage from residual moisture. Attached Figure Description

[0027] Figure 1This is a structural schematic diagram of a rotary leak detection device according to this application; Figure 2 This is a partial structural diagram of a rotary leak detection device according to this application. Figure 1 ; Figure 3 This is a partial structural diagram of a rotary leak detection device according to this application. Figure 2 ; Figure 4 This is a partial cross-sectional view of a rotary leak detection device according to this application. Figure 1 ; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial cross-sectional view of a rotary leak detection device according to this application. Figure 2 ; Figure 7 yes Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the drying device and unloading device of this application; Figure 9 yes Figure 8 Enlarged view of point C in the middle; Figure 10 This is a cross-sectional view of a rotary leak detection device according to this application.

[0028] The parts referred to by the numbers in the above attached figures are as follows: 1. Rotary detection device; 11. Drive assembly; 111. First motor; 112. Gear set; 12. Rotating assembly; 121. Rotating seat; 1211. Water inlet passage; 122. Support frame; 13. Mounting assembly; 131. Mounting base plate; 1311. Water replenishment tank; 132. Positioning column; 133. Sealing gasket; 134. Rotary pressing cylinder; 135. Sealing component; 1351. Pressing cylinder; 1352. Sealing head; 14. Detection station; 2. Water injection device; 21. Water circulation assembly; 211. Bidirectional conveying component; 2111. Peristaltic pump; 212. Adjusting component; 2121. Rotary disc; 2122. Slot; 2123. First spring; 2124. Steel ball; 213. Abutment component; 2131. Telescopic abutment 2132. Water inlet; 2133. Second spring; 2134. Limiting protective sleeve; 22. Water supply assembly; 221. Water guide slip ring; 222. One-way water blocking column; 2221. Limiting component; 223. Sealing ring; 224. Snap-fit ​​ring; 225. One-way valve; 3. Drying device; 31. Arc-shaped adjustment assembly; 311. Arc-shaped track; 3111. Internal gear; 312. Moving part; 3 121. Mounting plate; 3122. Drive gear; 3123. Limit wheel; 3124. Second motor; 32. Blowing assembly; 321. Linear module; 322. Air outlet; 4. Unloading device; 41. Lifting assembly; 411. Lifting cylinder; 412. Support plate; 413. Suction cup; 42. Pushing assembly; 421. Pushing cylinder; 422. Push plate; 423. Sliding frame; 5. Outer frame cover. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This invention discloses a rotary leak detection device.

[0031] Reference Figure 1 and Figure 2 A rotary leak detection device includes a rotary detection unit 1, a water injection unit 2, a drying unit 3, a discharge unit 4, and an outer frame 5. The outer frame 5 is used to install the rotary detection unit 1, the water injection unit 2, the drying unit 3, and the discharge unit 4, and can collect overflowing water to prevent contamination. The rotary detection unit 1 has two detection stations 14 for alternately placing workpieces for detection.

[0032] The workpiece is placed on one of the inspection stations 14 of the rotary inspection device 1 and sealed. Water is injected into the workpiece by the water injection device 2. The rotary inspection device 1 rotates the workpiece so that the water submerges the sealed area. Image recognition technology is used to observe whether there is water seepage at the sealed area. After inspection, the rotary inspection device 1 rotates the workpiece 180 degrees so that the lower inspection station 14 moves to the upper position. At the same time, the inspected workpiece moves to the lower position. The workpiece to be inspected is then placed in the upper inspection station 14 and sealed. Then, the water injection device 2 is activated to transport the water inside the lower inspected workpiece to the upper workpiece to be inspected. Then, the unloading device 4 is activated to move the workpiece vertically downward and simultaneously activates the drying device 3 to dry the inside of the inspected workpiece. After drying, the workpiece is pushed out and the inspection is completed. The above steps are repeated to achieve dual-station alternating inspection, which shortens the inspection time and improves the inspection efficiency. Image recognition technology is existing technology and will not be described in detail here.

[0033] refer to Figure 3 and Figure 6 The rotation detection device 1 includes a drive assembly 11, a rotation assembly 12, and a mounting assembly 13.

[0034] The rotating assembly 12 includes a rotating seat 121 and two support frames 122. The two support frames 122 are fixedly installed inside the bottom of the outer frame 5. The rotating seat 121 is rotatably installed between the two support frames 122. The rotating seat 121 has a water inlet passage 1211 inside for water replenishment and delivery.

[0035] One end of the water inlet passage 1211 is connected to the water injection device 2, and the other end of the water inlet passage 1211 has two water outlets. The two water outlets pass through the rotating seat 121 in the direction close to the mounting base plate 131 for water supply.

[0036] The drive assembly 11 includes a first motor 111 and a gear set 112. The gear set 112 consists of two meshing gears, both of which are rotatably connected to the outer frame 5. The first motor 111 is fixedly installed on the outside of the outer frame 5. The output end of the first motor 111 is fixedly connected to one gear, and the other gear is fixedly connected to one end of the rotating seat 121. The first motor 111 drives the gear to rotate so as to drive the rotating seat 121 to rotate.

[0037] Two mounting components 13 are symmetrically arranged along the rotating base 121. The mounting components 13 include a mounting base plate 131, multiple positioning posts 132, sealing gaskets 133, a rotary pressing cylinder 134, and a sealing component 135. The mounting base plate 131 is fixedly installed on one side of the rotating base 121 to form a detection station 14. The multiple positioning posts 132 are fixedly installed on the mounting base plate 131 to limit the workpiece. The sealing gaskets 133 are fixedly installed on the mounting base plate 131 to seal the opening of the workpiece. The rotary pressing cylinder 134 is fixedly installed on the rotating base 121. The output end of the rotary pressing cylinder 134 is in contact with the workpiece to drive the workpiece to press against the mounting base plate 131.

[0038] A water replenishment groove 1311 is provided on the mounting base plate 131. The water replenishment groove 1311 is arranged in a ring on the surface of the mounting base plate 131 and is connected to the water inlet passage 1211. It is used to uniformly deliver water to the inside of the workpiece to be tested. Since there are multiple non-connected chambers inside the workpiece, it is not possible to rely solely on the water inlet passage 1211 to deliver water to each chamber of the workpiece. The setting of the water replenishment groove 1311 allows water to flow through the water replenishment groove 1311 to each chamber of the workpiece to achieve uniform water replenishment. Different shapes of water replenishment grooves 1311 can be opened for different workpieces to adapt to them.

[0039] The sealing component 135 is provided with multiple holes corresponding to the through holes on the side of the workpiece. The sealing component 135 includes a pressing cylinder 1351 and a sealing head 1352. The sealing head 1352 is fixedly installed at the output end of the pressing cylinder 1351 and, driven by the pressing cylinder 1351, seals the through holes on the side of the workpiece, thereby forming a seal inside the workpiece. The pressing cylinder 1351 is fixedly installed on the rotating seat 121.

[0040] The workpiece is placed with its opening facing down in the inspection station 14 on the mounting base plate 131. The workpiece opening is initially sealed by the sealing gasket 133. The positioning post 132 abuts against the outer wall of the workpiece to limit its movement. First, the rotating pressing cylinder 134 is activated, causing its output end to rotate above the workpiece and then press down to abut against the workpiece surface for fixation. Then, the clamping cylinder 1351 is activated, driving the sealing head 1352 to press against and cover the side hole of the workpiece for sealing, thus achieving an internal seal. Water is then injected into the workpiece through the water injection device 2, and the first electric... Machine 111, the first motor 111 drives the rotating seat 121 to rotate along the support frame 122 through the gear set 112, so that the water inside the workpiece sequentially submerges multiple sealed side holes of the workpiece, and the presence of water seepage is observed simultaneously through image recognition technology. After the inspection is completed, the first motor 111 drives the rotating seat 121 to rotate 180 degrees so that the inspection station 14 on which the workpiece is placed rotates to the lower position, and the lower inspection station 14 rotates to the upper position. The upper inspection station 14 always contains the workpiece to be inspected, and the lower inspection station 14 always contains the workpiece after inspection.

[0041] The rotating seat 121 allows the water inside the workpiece to rotate with the rotating seat 121 to fully immerse the through hole on the side of the workpiece, which facilitates the sealing test at the through hole. At the same time, two testing stations 14 are set on both sides of the rotating seat 121, so that after the workpiece is tested, the unloading of the old workpiece and the loading of the new workpiece can be carried out simultaneously, shortening the test preparation time and improving the test efficiency.

[0042] refer to Figure 4 and Figure 6 The water injection device 2 includes a water circulation component 21 and a water replenishment component 22.

[0043] The water circulation component 21 includes a bidirectional conveying component 211, an adjusting component 212, and an abutting component 213.

[0044] The bidirectional conveying component 211 uses a peristaltic pump 2111. The peristaltic pump 2111 is fixedly installed inside the rotating seat 121 to connect the two detection stations 14 for water conveyance. The peristaltic pump 2111 always pumps water from the lower detected workpiece to the upper workpiece to be detected.

[0045] refer to Figure 5The adjusting component 212 includes a rotating disk 2121, two first springs 2123, and two steel balls 2124. The rotating disk 2121 is rotatably mounted inside the mounting base plate 131. The rotating disk 2121 is hollow inside and has a passage that connects the peristaltic pump 2111 to the abutting component 213. The rotating disk 2121 has a plurality of slots 2122 evenly distributed around its circumference. The two steel balls 2124 are symmetrically arranged on the outer side of the rotating disk 2121 and are located in the slots 2122, abutting against the rotating disk 2121. One end of each of the two first springs 2123 is fixedly connected to the steel ball 2124, and the other end is connected to the mounting base plate 131. The mounting base plate 131 has grooves for accommodating the first springs 2123 and the steel balls 2124.

[0046] In this embodiment, the workpiece has two chambers inside. Before the workpiece is placed on the inspection station 14, the rotating disk 2121 is rotated. The rotating disk 2121 drives the two telescopic abutment pipes 2131 to be located at the corresponding positions of the two chambers of the workpiece. During the rotation, the first spring 2123 pushes the steel ball 2124 to always abut against the slot 2122 on the outside of the rotating disk 2121 and limits it when the rotation stops. The rotation adjustment makes the telescopic abutment pipes 2131 adaptable to workpieces with different chamber positions.

[0047] Two abutment components 213 are provided, both of which are connected to the peristaltic pump 2111 via the rotating disk 2121. Each abutment component 213 includes a telescopic abutment pipe 2131, a second spring 2133, and a limiting protective sleeve 2134. The telescopic abutment pipe 2131 is fixedly installed on the rotating disk 2121, with one end connected to a passage within the rotating disk 2121. The other end of the telescopic abutment pipe 2131 abuts against the inner wall of the workpiece and has multiple circumferentially evenly spaced water passages 2132 for water flow. The telescopic abutment pipe 2131 has a telescopic section, and the limiting protective sleeve 2134 is fitted onto it. The telescopic abutment tube 2131 is used to limit the telescopic direction of telescopic abutment tube 2131 and protect telescopic abutment tube 2131. One end of the limiting protective sleeve 2134 is fixedly connected to the end of telescopic abutment tube 2131 near the inner wall of the workpiece, and the other end of telescopic abutment tube 2131 is slidably connected to telescopic abutment tube 2131. The second spring 2133 is sleeved on the outside of the telescopic section of telescopic abutment tube 2131 and located between telescopic abutment tube 2131 and limiting protective sleeve 2134 to drive telescopic abutment tube 2131 to press against the inner wall of the workpiece.

[0048] Reference Figure 6 and Figure 7The water supply component 22 includes a water guide slip ring 221, a one-way water blocking column 222, two sealing rings 223, two snap-fit ​​rings 224, and two one-way valves 225. The fixed end of the water guide slip ring 221 is fixedly connected to the inner wall of the outer frame 5, and the rotating end of the water guide slip ring 221 is fixedly connected to one end of the rotating seat 121. The water guide slip ring 221 connects the external water supply equipment to the water inlet passage 1211 inside the rotating seat 121. The one-way water blocking column 222 is located at the outlet of the water inlet passage 1211. A limiting member 2221 connected to the one-way water blocking column 222 is installed at the outlet of the water inlet passage 1211 to limit the movement direction of the one-way water blocking column 222. The two sealing rings 223, two snap-fit ​​rings 224, and two one-way valves 225. Rings 223 are fixedly installed at both ends of the one-way water-blocking column 222 near the outlet. Two snap-fit ​​rings 224 are symmetrically fixedly installed at the two outlets of the water inlet passage 1211. The opening of the snap-fit ​​ring 224 gradually narrows from the side near the one-way water-blocking column 222 toward the side away from the one-way water-blocking column 222. The two ends of the one-way water-blocking column 222 are inclined in coordination with the snap-fit ​​rings 224. Two one-way valves 225 are fixedly installed at the two outlets of the water outlet passage and are located outside the snap-fit ​​rings 224. The flow direction of the one-way valves 225 is from inside the water inlet passage 1211 to outside the rotating seat 121. The outlet of the one-way valves 225 is connected to the water replenishment tank 1311.

[0049] After the workpiece is sealed and fixedly installed at the inspection station 14, the one-way water-blocking column 222 moves downward along the limiting member 2221 under the action of gravity, and cooperates with the sealing ring 223 to abut and seal the lower snap ring 224. There is a gap between the one-way water-blocking column 222 and the upper snap ring 224 for water supply. The external water supply equipment is started to send water through the water guide slip ring 221, the water inlet passage 1211, the upper snap ring 224 and the upper one-way valve 225 into the water replenishment tank 1311 of the mounting base plate 131, and flow along the water replenishment tank 1311 to various areas inside the workpiece to complete the water injection.

[0050] After the workpiece is inspected, it is moved to the lower position and a new workpiece is sealed and fixedly installed at the upper inspection station 14. The peristaltic pump 2111 is started. Water in the lower workpiece enters the telescopic abutment pipe 2131 through the water inlet 2132, then enters the peristaltic pump 2111 through the internal passage of the rotating disk 2121, and finally enters the upper workpiece through the upper rotating disk 2121 and the telescopic abutment pipe 2131. When the water in the lower workpiece cannot be completely transferred to the upper workpiece, the external water supply equipment is started and water is replenished to the upper workpiece through the water replenishment component 22.

[0051] After the workpiece is placed in the upper inspection station 14, the second spring 2133 pushes one end of the telescopic abutment pipe 2131 to move towards the workpiece so that the end of the telescopic abutment pipe 2131 abuts against the inner wall of the workpiece. The side water passage notch 2132 of the telescopic abutment pipe 2131 is used for water flow, so that the peristaltic pump 2111 can pump the water at a lower water level in the workpiece below when delivering water. The limiting protective sleeve 2134 is used to limit the telescopic movement direction of the telescopic abutment pipe 2131 and protect the second spring 2133.

[0052] The peristaltic pump 2111, together with the adjusting component 212 and the abutting component 213, delivers water from the inside of the tested workpiece to the inside of the workpiece to be tested. In conjunction with the water replenishment component 22, water is replenished, which shortens the time for water replacement and water injection, realizes the circulation of test water, and reduces the test cost.

[0053] Reference Figure 8 and Figure 9 The drying device 3 includes two arc-shaped adjustment components 31 and a blowing component 32. The two arc-shaped adjustment components 31 are symmetrically arranged, and the axis of symmetry is perpendicular to the rotation axis of the rotating seat 121.

[0054] The arc-shaped adjustment assembly 31 includes an arc-shaped track 311 and a moving part 312.

[0055] The arc-shaped track 311 is a semi-circular shape with the opening facing upward. The arc-shaped track 311 is fixedly installed inside the outer frame 5 and surrounds the outer side of the axis of the rotating detection device 1. The inner side of the arc-shaped track 311 has internal teeth 3111. The moving part 312 is installed on the arc-shaped track 311 and is driven and connected with the internal teeth 3111.

[0056] The moving component 312 includes a mounting plate 3121, a drive gear 3122, multiple limiting wheels 3123, and a second motor 3124. The drive gear 3122 and the limiting wheels 3123 are rotatably mounted on the mounting plate 3121. The multiple limiting wheels 3123 are located on both sides of the arc-shaped track 311 and are connected to the arc-shaped track 311 for limiting and rolling. The drive gear 3122 is meshed with the internal gear 3111. The drive gear 3122 is fixedly connected to the output end of the second motor 3124. The second motor 3124 is mounted on the mounting plate 3121. A blower assembly 32 is fixedly mounted between the mounting plates 3121 of the two arc-shaped adjustment components 31.

[0057] The blower assembly 32 includes a linear module 321 and an air outlet 322. The two ends of the linear module 321 are fixedly installed on two mounting plates 3121 respectively. The driving direction of the linear module 321 is the same as the axial direction of the rotating shaft of the rotating seat 121. The air outlet 322 is fixedly installed on the moving end of the linear module 321. The air outlet direction of the air outlet 322 is set towards the detection station 14. The air outlet 322 is connected to an external ventilation device.

[0058] Reference Figure 10 The unloading device 4 includes a lifting component 41 and a pushing component 42.

[0059] The lifting assembly 41 includes a lifting cylinder 411, a support plate 412, and multiple suction cups 413. The lifting cylinder 411 is fixedly installed inside the bottom of the outer frame cover 5 and located below the inspection station 14. The output end of the lifting cylinder 411 is fixedly connected to the support plate 412. Multiple suction cups 413 are fixedly installed on the support plate 412. The suction cups 413 are connected to external air extraction equipment. The running direction of the lifting cylinder 411 is set vertically.

[0060] The pushing component 42 includes a pushing cylinder 421, a push plate 422, and a sliding frame 423. The pushing cylinder 421 is installed on one side of the lower detection station 14, and the sliding frame 423 is installed on the other side of the detection station 14. Both the pushing cylinder 421 and the sliding frame 423 are fixedly connected to the inner side wall of the outer frame cover 5. The push plate 422 is fixedly installed at the output end of the pushing cylinder 421. The running direction of the pushing cylinder 421 is set horizontally. The upper end surface of the sliding frame 423 is located on the same horizontal plane as the upper end surface of the suction cup 413.

[0061] The outer frame cover 5 has a through groove on the side wall near the sliding frame 423 for the workpiece to pass through. The bottom inner wall of the through groove opening is flush with the placement plane of the sliding frame 423.

[0062] After the water inside the workpiece is transferred to the workpiece to be tested after the inspection is completed, the second motor 3124 is started to drive the drive gear 3122 to rotate. The drive gear 3122 meshes with the internal gear 3111 and moves to one side along the arc track 311 to avoid the workpiece. The lifting cylinder 411 is started to drive the support plate 412 and the suction cup 413 to move so that the suction cup 413 is attached to the lower end of the workpiece. The external air extraction equipment is started, and the suction cup 413 adsorbs and fixes the workpiece. The lifting cylinder 411 is started to drive the workpiece to move down and attach to the sliding frame 423. The external ventilation equipment is started to spray hot air through the air outlet 322 to dry the inside of the workpiece. After drying, the pushing cylinder 421 is started to drive the push plate 422 to abut against the workpiece and continue to drive the workpiece to move along the sliding frame 423. The workpiece first detaches from the suction cup 413 on the support plate 412, and then detaches from the outer frame 5 through the through groove on the sliding frame 423 to complete the unloading. The water that is accidentally spilled falls into the inside of the outer frame 5 for collection.

[0063] The unloading device 4, in conjunction with the drying device 3, first dries the workpiece after inspection to prevent residual water from damaging or contaminating it. The unloading device 4 then unloads the workpiece, achieving automation and reducing labor costs. The bottom of the outer frame 5 is inclined to facilitate the collection of dripping water.

[0064] When testing for sealing performance, if water seepage is observed at the through-hole on the side wall of the workpiece, the second motor 3124 is started to move the air outlet 322 to one side of the workpiece. The linear module 321 is started to move the air outlet 322 to the through-hole facing the workpiece. The external ventilation equipment is started to spray hot air through the air outlet 322 to dry the seepage water. After waiting for a period of time, if water seepage continues, it indicates that the sealing performance at the through-hole is insufficient. If no further water seepage is found, it indicates that the water seepage is water residue on the sealing head 1352 after the last test, and there is no problem with insufficient sealing.

[0065] The drying device 3 assists in the detection process, avoiding the influence of residual water on the sealing head 1352 after the previous detection on the current detection, thus improving the accuracy of the detection and reducing the probability of misjudgment.

[0066] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A rotary leak detection device, characterized in that: It includes a rotary inspection device (1) with alternating dual-station inspection and a water injection device (2) connected to the rotary inspection device (1) for delivering water to the inside of the workpiece to be inspected. The rotary detection device (1) includes a rotary assembly (12) that drives the workpiece to rotate, two mounting assemblies (13) symmetrically mounted on both sides of the rotary assembly (12) for placing the workpiece to form a sealed state, and a drive assembly (11) connected to the rotary assembly (12) to provide driving force. The mounting assemblies (13) are located in the circumferential direction of the rotation axis of the rotary assembly (12), and two detection stations (14) are correspondingly provided on the two mounting assemblies (13). The water injection device (2) includes a water circulation component (21) for circulating water from the workpiece after inspection to the workpiece to be inspected, and a water replenishment component (22) for supplying water to the workpiece to be inspected. The water replenishment component (22) is connected to an external water supply device.

2. The rotary leak detection device according to claim 1, characterized in that: The rotating assembly (12) includes a support frame (122) for providing support force and a rotating seat (121) rotatably mounted on the support frame (122) for mounting the mounting assembly (13). The rotating seat (121) is connected to the driving assembly (11) and rotates along the support frame (122) under the drive of the driving assembly (11).

3. The rotary leak detection device according to claim 2, characterized in that: The mounting assembly (13) includes a mounting base plate (131) for placing the workpiece, a positioning post (132) mounted on the mounting base plate (131) for limiting the workpiece, a sealing gasket (133) mounted on the mounting base plate (131) for sealing the open end of the workpiece, a rotary pressing cylinder (134) for driving the workpiece to press against the mounting base plate (131), and a sealing component (135) for pressing against and covering the side hole of the workpiece to seal the side hole. The mounting base plate (131) is fixedly mounted on both sides of the rotating seat (121).

4. A rotary leak detection device according to claim 3, characterized in that: The water circulation assembly (21) includes a bidirectional conveying component (211) installed in the rotating seat (121) for pumping water, an adjusting component (212) installed in the mounting base plate (131) and connected to one end of the bidirectional conveying component (211), and an abutting component (213) communicating with the adjusting component (212) and abutting against the inner wall of the workpiece. The bidirectional conveying component (211), the adjusting component (212) and the abutting component (213) form a complete water channel to convey water from the workpiece after testing to the workpiece to be tested. The abutting component (213) includes a telescopic abutting tube (2131) that is telescopic at one end, a limiting protective sleeve (2134) installed on the outside of the telescopic abutting tube (2131) to limit the telescopic direction of the telescopic abutting tube (2131), and a second spring (2133) sleeved on the circumferential outside of the telescopic abutting tube (2131) and located between the telescopic abutting tube (2131) and the limiting protective sleeve (2134) to drive the telescopic abutting tube (2131) to press against the inner wall of the workpiece. One end of the telescopic abutting tube (2131) is connected to the adjusting component (212), and the other end of the telescopic abutting tube (2131) abuts against the inner wall of the workpiece and has a water passage opening (2132) on its edge for water to flow through.

5. A rotary leak detection device according to claim 4, characterized in that: The adjusting component (212) includes a rotating disk (2121) rotatably mounted in the mounting base plate (131) to connect the bidirectional conveying component (211) and the telescopic abutment pipe (2131), a steel ball (2124) disposed on the circumferential outer side of the rotating disk (2121), and a first spring (2123) that drives the steel ball (2124) to abut against the rotating disk (2121). The rotating disk (2121) is uniformly provided with a plurality of slots (2122) for the steel ball (2124) to abut and fix.

6. A rotary leak detection device according to claim 3, characterized in that: The rotating base (121) has a water inlet passage (1211) for supplying water to the workpiece to be inspected. The water inlet passage (1211) has two water outlets that pass through the base plate (131) and are used for supplying water. The water replenishment assembly (22) includes a water guide slip ring (221) connected to the rotating base (121) to reduce the rotation of the water inlet passage (121) with the rotating base (121), a one-way water blocking column (222) located at the water outlet to restrict the direction of water flow, and a mounting bracket. A snap ring (224) installed at the outlet of the water inlet passage (1211) in conjunction with the one-way water blocking column (222) to block the water inlet passage (1211) and a one-way valve (225) installed at the outlet of the water inlet passage (1211) to restrict the water flow to the workpiece to be tested in one direction. A water replenishment tank (1311) on the mounting base plate (131) is connected to the water inlet passage (1211) and is used to uniformly transport water to the inside of the workpiece to be tested. The water guide slip ring (221) is connected to the external water supply equipment.

7. A rotary leak detection device according to claim 1, characterized in that: It also includes a drying device (3) for drying the workpiece after inspection. The drying device (3) includes a blower assembly (32) that blows hot air to remove residual water and an arc-shaped adjustment assembly (31) connected to the blower assembly (32) to drive it to move around the rotating inspection device (1). The arc-shaped adjustment assembly (31) includes a moving part (312) connected to the blowing assembly (32) to drive it to move, and an arc-shaped track (311) surrounding the outer side of the axis of the rotation detection device (1) and allowing the moving part (312) to move.

8. A rotary leak detection device according to claim 7, characterized in that: The blowing assembly (32) includes an air outlet (322) connected to an external ventilation device to deliver hot air and a linear module (321) that drives the air outlet (322) to move horizontally back and forth. The two ends of the linear module (321) are respectively connected to the moving component (312) and follow it to move around the rotating detection device (1).

9. A rotary leak detection device according to claim 1, characterized in that: Below the rotary detection device (1) is an unloading device (4) for automatically unloading the detected workpiece. The unloading device (4) includes a lifting component (41) that moves the workpiece in the vertical direction and a pushing component (42) that pushes the workpiece on the lifting component (41) horizontally for unloading. The lifting assembly (41) includes a support plate (412) for supporting the workpiece after inspection, a suction cup (413) disposed on the side of the support plate (412) close to the workpiece after inspection and for fixing the workpiece after inspection, and a lifting cylinder (411) for driving the support plate (412) to move in the vertical direction. The suction cup (413) is connected to an external air extraction device.

10. A rotary leak detection device according to claim 9, characterized in that: The pushing assembly (42) includes a pusher plate (422) that pushes the workpiece from the side to move it horizontally, a pusher cylinder (421) connected to the pusher plate (422) to drive it to move horizontally, and a sliding frame (423) that supports the workpiece detached from the support plate (412) for unloading.

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