Aluminum alloy casting leak detection device

Abstract

The present invention relates to the technical field of casting detection, and specifically to a leakage detection device for aluminum alloy castings, comprising a rotating base, a pushing and plugging device, a circulating infusion device, an outer wall cleaning device and a detection marking device; the rotating base is used to limit the bottom of the casting and can drive the casting to rotate; the circulating infusion device is arranged at the bottom of the rotating base, and the circulating infusion device is used to transport detection liquid to the rotating base; the pushing and plugging device is arranged at the top of the rotating base, and the pushing and plugging device is used to limit and plug the top of the casting; the outer wall cleaning device is installed on the pushing and plugging device, and the outer wall cleaning device is used to clean the outer wall of the casting; a plurality of detection marking devices are provided and installed on the rotating base, and the detection marking device is used to automatically detect the outer wall of the casting. The present invention can effectively improve the accuracy of detection and improve work efficiency at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of casting detection, in particular to a leakage detection device for aluminum alloy castings. Background Art

[0002] After the production of aluminum castings is completed, they need to be tested for leaks before they can be put into use. At present, when testing for leaks in aluminum castings, they are placed in a water tank, which is filled with water. In order to fix the aluminum castings, a mounting seat is usually set in the water tank to observe whether it leaks. After the test is completed, the water in the water tank is drained, and this process is repeated. The water in the water tank cannot be reused, and a large amount of water resources will be consumed in the long run. Not only is the utilization rate of water resources extremely low, but the cost of leak detection for the company is also high. Moreover, due to the extremely small gaps in the aluminum castings, it is difficult to observe the air saturation on the surface with the naked eye, and the leak detection accuracy is low. It is necessary to wait for the bubbles to come out naturally, which takes a long time and is inefficient.

[0003] Chinese patent CN116818206A discloses a leak detection device for aluminum alloy castings, including a water tank, a movable opening is provided at the upper end of the water tank, a support plate is provided at the movable opening, a plurality of lifting components are fixedly connected between the support plate and the inner bottom wall of the water tank, a plurality of limit rings are fixedly connected at the upper end of the support plate, and an aluminum alloy casting body is detachably mounted on the limit ring. The present invention arranges a circulating water tank below the water tank, and through the cooperation of the sensing component and the water pump, water is recycled, water resources are saved, and the water in the water tank is replenished in time, which is convenient to use; by filling the aluminum alloy casting body with gas to increase the pressure, the aluminum alloy casting body with a leak can quickly generate bubbles in the water, the phenomenon is obvious, and the efficiency is high.

[0004] During the air tightness test of aluminum alloy castings by the above device, although the generation of bubbles can indicate that there is a leak in the casting, the location of the bubbles does not directly correspond to the specific location of the leak. This makes it difficult for maintenance personnel to directly locate the leak point, increasing the difficulty of maintenance. No marking function: The device is not designed to directly mark the leak area, so it is necessary to detect and locate the leak point again during the subsequent maintenance process, which increases the complexity of the overall workflow and affects work efficiency. At the same time, the process of observing the generation of bubbles may need to be done manually, which not only increases labor costs, but may also lead to inaccurate observations or omissions. Summary of the invention

[0005] In view of the above problems, a leak detection device for aluminum alloy castings is provided, which can effectively improve the detection accuracy and work efficiency by cooperating with a rotating base, a pushing sealing device, a circulating infusion device, an outer wall cleaning device and a detection marking device.

[0006] In order to solve the problems of the prior art, the present invention provides a leak detection device for aluminum alloy castings, comprising a rotating base, a pushing and sealing device, a circulating infusion device, an outer wall cleaning device and a detection marking device; the rotating base is used to limit the placement of the bottom of the casting and can drive the casting to rotate; the circulating infusion device is arranged at the bottom of the rotating base, and the circulating infusion device is used to transport detection liquid to the rotating base; the pushing and sealing device is arranged at the top of the rotating base, and the pushing and sealing device is used to limit and seal the top of the casting; the outer wall cleaning device is installed on the pushing and sealing device, and the outer wall cleaning device is used to clean the outer wall of the casting; a plurality of detection marking devices are provided and installed on the rotating base, and the detection marking device is used to automatically detect the outer wall of the casting.

[0007] Preferably, the rotating base includes a mounting base plate, on which a plurality of first rotating mounting seats are mounted, on which a limiting placement seat for limiting the bottom of the casting is mounted, and the bottom of the mounting base plate also includes a synchronous driving device for driving the plurality of first rotating mounting seats to rotate.

[0008] Preferably, a rotating mounting tube is provided at the axial position of the first rotating mounting seat, a three-way control valve is provided at the bottom of the rotating mounting tube, and a threaded joint for installing a limit placement seat is provided at the top of the rotating mounting tube.

[0009] Preferably, a first spiral connection hole is provided at the axial center position of the position limiting placement seat, a position limiting placement groove is provided at the top of the position limiting placement seat, and a conical guide groove is also provided at the axial center position of the position limiting placement groove.

[0010] Preferably, the pushing and sealing device includes a limit mounting frame installed on the mounting base plate, a lifting push plate is installed on the limit mounting frame, a plurality of second rotating mounting seats are installed on the lifting push plate, and a docking sealing device is installed on each of the second rotating mounting seats, and the docking sealing device is used to limit and seal the top of the casting.

[0011] Preferably, a second spiral connection hole is provided at the axial center position of the docking sealing device, a liquid level sensor is provided inside the docking sealing device, and a rotating guide wheel is installed at the bottom of the docking sealing device.

[0012] Preferably, the circulating infusion device includes a filter storage tank installed at the bottom of the installation base plate, an inclined filter plate is provided inside the filter storage tank, an infusion pump is installed on the side of the filter storage tank, and the output end of the infusion pump is connected to the three-way control valve.

[0013] Preferably, the outer wall cleaning device comprises a lifting mounting plate installed below the lifting push plate, and a plurality of annular cleaning tools for cleaning the surface of the casting are installed on the lifting mounting plate, and the outer walls of the annular cleaning tools are provided with snap-fitting protrusions.

[0014] Preferably, a plurality of annular mounting grooves are installed on the lifting mounting plate, a plurality of T-shaped slots are arranged inside the annular mounting groove, the T-shaped slots are used to limit the clamping protrusions of the annular cleaning tool, a clamping mounting ring is installed inside the annular mounting groove, a plurality of clamping push blocks are arranged on the clamping mounting ring, the clamping push blocks are arranged inside the T-shaped slot, and a pushing spring is also installed between the clamping mounting ring and the annular mounting groove.

[0015] Preferably, the detection and marking device includes a ball screw slide installed, the ball screw slide is installed with a marking nozzle, and the detection and marking device also includes a detection camera for detecting the surface of the casting.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The casting to be inspected is placed on the rotating base by the staff or the mechanical arm, and the push-blocking device moves downward from the top of the rotating base to limit and block the top of the casting. A closed space is formed inside the casting for subsequent liquid detection, and the circulating infusion device starts to work to deliver the detection liquid to the rotating base. The detection liquid enters the casting through the base and fills the internal space of the casting. While the detection liquid fills the inside of the casting, the outer wall cleaning device starts to work to clean the outer wall of the casting. During the detection, the rotating base will also drive the fixed casting to rotate at a uniform speed. When the casting rotates, it will drive the outer wall of the casting to pass through the detection marking device, so that the detection marking device can fully detect the outer wall of the casting. If there is a leak in the casting, the detection marking device will record the location of the leak and may notify the staff through sound and light signals or other methods. At the same time, the leaking area is marked to facilitate the maintenance personnel to quickly repair and handle. After the casting is inspected, the rotating base will deliver the detection inside the internal casting to the circulating infusion device for easy recycling. The device can effectively improve the accuracy of the detection and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a leak detection device for aluminum alloy castings Figure 1 .

[0019] Figure 2 A three-dimensional diagram of a leak detection device for aluminum alloy castings Figure 2 .

[0020] Figure 3 The present invention is a plan cross-sectional view of a leak detection device for an aluminum alloy casting.

[0021] Figure 4 A three-dimensional diagram of the rotating base in a leak detection device for an aluminum alloy casting Figure 1 .

[0022] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0023] Figure 6 A three-dimensional diagram of the rotating base in a leak detection device for an aluminum alloy casting Figure 2 .

[0024] Figure 7 A three-dimensional diagram of a push-on plugging device and an outer wall cleaning device in a leak detection device for an aluminum alloy casting Figure 1 .

[0025] Figure 8 A three-dimensional diagram of a push-on plugging device and an outer wall cleaning device in a leak detection device for an aluminum alloy casting Figure 2 .

[0026] Fig. 9 The present invention is a planar cross-sectional stereoscopic diagram of a butt plugging device in a leak detection device for an aluminum alloy casting.

[0027] Fig.10 The present invention is an exploded view of the partial structure of the outer wall cleaning device in the leak detection device of the aluminum alloy casting.

[0028] Fig.11 The invention is a three-dimensional schematic diagram of a detection marking device in a leak detection device for an aluminum alloy casting.

[0029] The numbers in the figure are:

[0030] 1. Rotating base; 11. Mounting base plate; 12. First rotating mounting seat; 121. Rotating mounting pipe; 122. Three-way control valve; 13. Position limiting seat; 131. First spiral connection hole; 132. Position limiting slot; 133. Conical guide slot; 14. Motor bracket; 15. Rotating driver; 16. Driving gear; 17. Driven gear; 2. Pushing and plugging device; 21. Position limiting mounting frame; 22. Lifting and lowering push plate; 23. First linear driver; 24. Second rotating mounting seat; 25. Docking plugging device; 251. Second spiral connection hole; 252. Liquid level sensor; 253 , rotating guide wheel; 254, guide fan blades; 3, circulating infusion device; 31, filter storage tank; 33, inclined filter plate; 32, infusion pump; 4, outer wall cleaning device; 41, lifting mounting plate; 411, T-shaped slot; 412, annular mounting slot; 413, snap-on mounting ring; 4131, snap-on push block; 414, push spring; 42, annular cleaning tool; 421, snap-on protrusion; 422, cleaning surface; 43, second linear drive; 5, detection and marking device; 51, ball screw slide; 52, marking nozzle; 53, detection camera; 54, lighting; 6, casting. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figures 1 to 11 As shown, a leak detection device for aluminum alloy castings includes a rotating base 1, a pushing and sealing device 2, a circulating infusion device 3, an outer wall cleaning device 4 and a detection marking device 5; the rotating base 1 is used to limit the bottom of the casting 6 and can drive the casting 6 to rotate; the circulating infusion device 3 is arranged at the bottom of the rotating base 1, and the circulating infusion device 3 is used to transport the detection liquid to the rotating base 1; the pushing and sealing device 2 is arranged at the top of the rotating base 1, and the pushing and sealing device 2 is used to limit and seal the top of the casting 6; the outer wall cleaning device 4 is installed on the pushing and sealing device 2, and the outer wall cleaning device 4 is used to clean the outer wall of the casting 6; a plurality of detection marking devices 5 are provided and installed on the rotating base 1, and the detection marking device 5 is used to automatically detect the outer wall of the casting 6.

[0033] The push-and-block device 2 is connected to the gas pipeline. When the casting 6 needs to be inspected, the casting 6 to be inspected is placed on the rotating base 1 by a worker or a mechanical arm. The design of the rotating base 1 can ensure that the bottom of the casting 6 is stably limited and supported. The push-and-block device 2 moves downward from the top of the rotating base 1 to limit and block the top of the casting 6. A closed space is formed inside the casting 6 to facilitate subsequent liquid testing. The circulating infusion device 3 starts working to deliver the testing liquid to the rotating base 1. The testing liquid enters the casting 6 through the base and fills the internal space of the casting 6. While the testing liquid fills the inside of the casting 6, the outer wall cleaning device 4 starts working to clean the outer wall of the casting 6. This is to ensure that the detection marking device 5 can accurately detect any detection liquid leaking from the casting 6. During the detection, the rotating base 1 will also drive the fixed casting 6 to rotate at a uniform speed. When the casting 6 rotates, it will drive the outer wall of the casting 6 to pass through the detection marking device 5, so that the detection marking device 5 can fully detect the outer wall of the casting 6. If there is a leak in the casting 6, the detection marking device 5 will record the location of the leak and may notify the staff through sound and light signals or other methods. At the same time, the leaking area will be marked to facilitate maintenance personnel to quickly repair and handle. After the detection of the casting 6 is completed, the rotating base 1 will convey the detection inside the internal casting 6 to the circulating infusion device 3 for recycling. At the same time, the gas pipeline will convey airflow to the pushing and plugging device 2. The airflow passes through the pushing and plugging device 2 and enters the interior of the casting 6. The airflow enters the interior of the casting 6 to quickly discharge the detection liquid, and the airflow will also air-dry the inner wall of the casting 6. It can effectively improve the accuracy of detection and improve work efficiency.

[0034] See also Figures 1 to 4As shown, the rotating base 1 includes a mounting base plate 11, on which a plurality of first rotating mounting seats 12 are mounted, on which a limiting placement seat 13 for limiting the bottom of the casting 6 is mounted, and the bottom of the mounting base plate 11 also includes a synchronous driving device for driving the plurality of first rotating mounting seats 12 to rotate.

[0035] The synchronous drive device includes a motor bracket 14 installed at the bottom of the mounting base 11, a rotation driver 15 is installed on the motor bracket 14, and a driving gear 16 is installed at the output end of the rotation driver 15. The synchronous drive device also includes a plurality of driven gears 17 evenly distributed at the bottom of the first rotating mounting seat 12, and the driven gears 17 are meshed with the driving gears 16.

[0036] The aluminum alloy casting 6 to be tested is placed on the limit placement seat 13 of the rotating base 1 by a staff member or a mechanical arm. The pushing and blocking device 2 moves downward from the top to press the top of the casting 6 to limit and block it. When the casting 6 is pressed, the casting 6 will also make the casting 6 and the limit placement seat 13 seal and fit, so that a closed space is formed inside the casting 6. The circulating infusion device 3 starts to work and delivers the test liquid to the first rotating mounting seat 12. The test liquid enters the casting 6 through the base and fills the internal space of the casting 6. The outer wall cleaning device 4 starts to work and cleans the outer wall of the casting 6 to ensure that the detection marking device 5 can detect accurately. When the rotary driver 15 is started, the rotary driver 15 will drive the driving gear 16 to rotate synchronously. Through the meshing of the driving gear 16 and the driven gear 17, the driven gear 17 drives multiple first rotating mounting seats 12 to rotate synchronously. When the first rotating mounting seats 12 rotate, the limit placement seats 13 will be driven to rotate accordingly. When the limit placement seats 13 rotate, the casting 6 will be driven to rotate synchronously, which is convenient for the detection and marking device 5 to comprehensively detect the outer wall of the casting 6.

[0037] See also Figures 4 to 6 As shown, a rotating installation tube 121 is provided at the axial center position of the first rotating installation seat 12, a three-way control valve 122 is provided at the bottom of the rotating installation tube 121, and a threaded joint for installing the limit placement seat 13 is provided at the top of the rotating installation tube 121.

[0038] The limit placement seat 13 is connected to the top of the rotating installation tube 121 through a threaded joint to ensure that the casting 6 is stably and accurately positioned on the leak detection device, and the circulating infusion device 3 starts to work, and the flow of the liquid is controlled by the three-way control valve 122 to transport the detection liquid from the bottom of the rotating installation tube 121 to the inside of the casting 6 to fill the internal space of the casting 6. The three-way control valve 122 plays a key role in this process, ensuring that the detection liquid can smoothly enter the casting 6, and the flow direction can be conveniently closed or switched after the detection is completed, so as to achieve effective control of the use of the detection liquid.

[0039] See also Figure 4 and Figure 5 As shown, a first spiral connection hole 131 is provided at the axial center position of the limiting placement seat 13 , a limiting placement groove 132 is provided at the top of the limiting placement seat 13 , and a conical guide groove 133 is further provided at the axial center position of the limiting placement groove 132 .

[0040] The limit placement seat 13 is connected to the threaded joint at the top of the rotating installation tube 121 through the first spiral connection hole 131 at the axial position of the limit placement seat 13, ensuring that the casting 6 is stably and accurately positioned on the leak detection device. The limit placement groove 132 at the top of the limit placement seat 13 is used to stably place the casting 6. After the casting 6 is tested by the detection liquid, when the three-way control valve 122 switches the flow direction to discharge the detection liquid inside the casting 6, the conical guide groove 133 at the axial position of the limit placement seat 13 is used to guide the detection liquid to quickly converge and discharge, so as to avoid the detection liquid remaining in the limit placement groove 132 at the top of the limit placement seat 13.

[0041] See also Figure 1 , Figure 7 and Figure 8 As shown, the pushing and sealing device 2 includes a limiting mounting frame 21 installed on the mounting base plate 11, a lifting push plate 22 is installed on the limiting mounting frame 21, a plurality of second rotating mounting seats 24 are installed on the lifting push plate 22, and a docking sealing device 25 is installed on each of the second rotating mounting seats 24. The docking sealing device 25 is used to limit and seal the top of the casting 6.

[0042] The push-and-block device 2 further comprises a first linear drive 23 for driving the lifting and lowering push plate 22 to move upward and downward. The second rotating mounting seat 24 has the same structure as the first rotating mounting seat 12, and the second rotating mounting seat 24 is connected to the gas pipeline.

[0043] Before the test begins, the staff or the mechanical arm places the aluminum alloy casting 6 to be tested on the limit placement seat 13 of the rotating base 1. Then, the pushing and plugging device 2 starts working. The first linear drive 23 drives the lifting push plate 22 to move downward, driving the second rotating mounting seat 24 and the docking plugging device 25 to descend together. When the docking plugging device 25 contacts the top of the casting 6, they will fit tightly to form a seal. Since the second rotating mounting seat 24 has the same structure as the first rotating mounting seat 12, when the casting 6 needs to rotate during the test, the docking plugging device 25 can also rotate synchronously therewith to ensure that the sealing effect is not affected. After the pushing and plugging device 2 completes the plugging of the top of the casting 6, the circulating infusion device 3 starts working to transport the detection liquid into the inside of the casting 6. The detection liquid enters the inside of the casting 6 through the base and fills the internal space of the casting 6. At the same time, the outer wall cleaning device 4 starts working to clean the outer wall of the casting 6 to ensure that the detection marking device 5 can accurately detect. The rotary drive 15 is started, driving the casting 6 and the docking plugging device 25 to rotate synchronously, so that the detection marking device 5 can comprehensively detect the outer wall of the casting 6 to ensure that no possible leakage points are missed. When the casting 6 is inspected, the flow direction is switched by the three-way control valve 122 to discharge the detection liquid inside the casting 6. At the same time, the second rotating mounting seat 24 is opened to allow the gas pipeline to transport airflow to the docking plugging device 25, and the docking plugging device 25 then transports the airflow to the interior of the casting 6. The airflow entering the interior of the casting 6 will quickly discharge the detection liquid. At the same time, the airflow will also dry the inner wall of the casting 6, effectively preventing the detection liquid from remaining on the surface of the casting 6.

[0044] See also Figure 7 and Fig. 9 As shown, a second spiral connection hole 251 is provided at the axial center position of the docking sealing device 25 , a liquid level sensor 252 is provided inside the docking sealing device 25 , and a rotating guide wheel 253 is installed at the bottom of the docking sealing device 25 .

[0045] A guide cavity is provided inside the rotating guide wheel 253 , and a plurality of guide blades 254 are provided at the flow opening of the rotating guide wheel 253 .

[0046] The butt plugging device 25 is designed to match the top shape of the casting 6 so as to fit closely and limit the top of the casting 6. The second spiral connection hole 251 is used to be spirally connected with the second rotating mounting seat 24, and the liquid level sensor 252 inside the butt plugging device 25 can detect the position of the test liquid inside the casting 6.

[0047] During the test, the first linear drive 23 drives the lifting push plate 22 to descend, so that the docking plugging device 25 completely blocks the top of the casting 6. Then, the circulating infusion device 3 starts to deliver the test liquid to the inside of the casting 6. After the test liquid enters the inside of the casting 6, the liquid level sensor 252 can effectively determine whether the test liquid enters the designated area. At the same time, the outer wall cleaning device 4 starts to work to clean the outer wall of the casting 6 to ensure that the detection marking device 5 can accurately detect. The rotary drive 15 is started, driving the casting 6 and the docking plugging device 25 to rotate synchronously, so that the detection marking device 5 can comprehensively detect the outer wall of the casting 6 to ensure that no possible leakage points are missed. When the casting 6 is inspected, the flow direction is switched by the three-way control valve 122 to discharge the detection liquid inside the casting 6. The second rotating mounting seat 24 is opened at the same time, so that the gas pipeline conveys airflow to the inside of the docking plugging device 25. The docking plugging device 25 conveys the incoming airflow to the guide cavity inside the rotating guide wheel 253. The guide cavity will diffuse the airflow evenly and allow the airflow to enter the interior of the casting 6 from the gap between the guide blades 254. The guide blades 254 can effectively guide the airflow to spirally diffuse. When the airflow enters the interior of the casting 6, air pressure will be formed to quickly discharge the detection liquid. At the same time, the spirally diffused airflow can effectively make the detection liquid attached to the inner wall of the casting 6 fall quickly, effectively improving the drainage effect and reducing the loss of the detection liquid.

[0048] See also Figures 1 to 3 As shown, the circulating infusion device 3 includes a filter storage tank 31 installed at the bottom of the installation base plate 11, an inclined filter plate 33 is provided inside the filter storage tank 31, an infusion pump 32 is installed on the side of the filter storage tank 31, and the output end of the infusion pump 32 is connected to the three-way control valve 122.

[0049] When it is necessary to deliver the detection liquid to the inside of the casting 6, the infusion pump 32 starts working and extracts the liquid from the filter storage tank 31. The infusion pump 32 delivers the detection liquid to the three-way control valve 122, and the three-way control valve 122 guides the liquid to the target position for infusion according to the instruction. After the detection liquid enters the inside of the casting 6, the liquid level sensor 252 can effectively determine whether the detection liquid enters the designated area. At the same time, the outer wall cleaning device 4 starts working to clean the outer wall of the casting 6 to ensure that the detection marking device 5 can accurately detect. The rotary drive 15 starts, driving the casting 6 and the docking plugging device 25 to rotate synchronously, so that the detection marking device 5 can fully detect the outer wall of the casting 6 to ensure that no possible leakage points are missed. When the casting 6 is detected, the detection liquid inside the casting 6 is discharged by switching the flow direction through the three-way control valve 122, and the discharged detection liquid will be re-introduced into the filter storage tank 31. The internal inclined filter plate 33 will filter the discharged detection liquid, thereby removing impurities and particles therein for easy recycling.

[0050] See also Figure 7 and Figure 8 As shown, the outer wall cleaning device 4 includes a lifting installation plate 41 installed below the lifting push plate 22, and a plurality of annular cleaning tools 42 for cleaning the surface of the casting 6 are installed on the lifting installation plate 41. The outer wall of the annular cleaning tool 42 is provided with a snap-on protrusion 421.

[0051] The outer wall cleaning device 4 also includes a second linear drive 43 for driving the lifting mounting plate 41 to move. The inner wall of the annular cleaning tool 42 is provided with a cleaning surface 422 for cleaning the casting 6, and the outer wall of the annular cleaning tool 42 is provided with a clamping protrusion 421.

[0052] The annular cleaning tool 42 is the core component of the outer wall cleaning device 4, and is designed to fit closely and clean the surface of the casting 6. The inner wall of each annular cleaning tool 42 is provided with a cleaning surface 422, which directly contacts the outer wall of the casting 6 and removes impurities, oxides or other attachments on the surface of the casting 6 by moving. The outer wall of the annular cleaning tool 42 is provided with a snap-on protrusion 421, which is used to facilitate the fixing of the annular cleaning tool 42 on the lifting mounting plate 41.

[0053] When it is necessary to clean the casting 6 fixed between the rotating base 1 and the pushing and plugging device 2, start the second linear drive 43, drive the lifting and lowering mounting plate 41 to move downward, so that the annular cleaning tool 42 is closely fitted to the outer wall of the casting 6. As needed, move the annular cleaning tool 42 so that its cleaning surface 422 cleans the surface of the casting 6. After the cleaning is completed, the second linear drive 43 drives the lifting and lowering mounting plate 41 to move upward again, and the annular cleaning tool 42 is separated from the casting 6. The above steps can be repeated to clean different parts of the casting 6 until the cleaning requirements are met. Through the lifting and lowering action of the lifting and lowering mounting plate 41 and the rotation or movement of the annular cleaning tool 42, the outer wall of the casting 6 is fully cleaned. The cleaning efficiency is improved and the cleaning quality is guaranteed.

[0054] See also Figures 7 to 10 As shown, a plurality of annular mounting grooves 412 are installed on the lifting mounting plate 41, and a plurality of T-shaped slots 411 are arranged inside the annular mounting groove 412. The T-shaped slots 411 are used to limit the snap-fitting protrusions 421 of the annular cleaning tool 42, and a snap-fitting mounting ring 413 is installed inside the annular mounting groove 412. The snap-fitting mounting ring 413 is provided with a plurality of snap-fitting push blocks 4131. The snap-fitting push blocks 4131 are arranged inside the T-shaped slots 411, and a pushing spring 414 is also installed between the snap-fitting mounting ring 413 and the annular mounting groove 412.

[0055] The shape of the T-shaped slot 411 matches the clamping protrusion 421 on the annular cleaning tool 42. When the annular cleaning tool 42 needs to be installed on the lifting mounting plate 41, the clamping protrusion 421 can be accurately inserted into the T-shaped slot 411, thereby realizing the preliminary positioning of the cleaning tool. In order to further improve the stability and reliability of the annular cleaning tool 42 on the lifting mounting plate 41, a clamping mounting ring 413 is also installed inside the annular mounting slot 412. The clamping mounting ring 413 is provided with a plurality of clamping push blocks 4131, which can be adjusted inside the T-shaped slot 411. When the clamping mounting ring 413 is pushed or rotated, the clamping push block 4131 can move along the side of the T-shaped slot 411, thereby tightly clamping the clamping protrusion 421, realizing the firm installation of the annular cleaning tool 42. In order to facilitate the operation and adjustment of the clamping mounting ring 413, a push spring 414 is also installed between the clamping mounting ring 413 and the annular mounting slot 412. The push spring 414 can provide a certain preload force, so that the clamping push block 4131 maintains an initial push state when not subjected to external force. When the annular cleaning tool 42 needs to be installed or removed, the push spring 414 can be compressed or released by operating the clamping mounting ring 413, thereby changing the position of the clamping push block 4131 in the T-shaped slot 411, and realizing the rapid installation and removal of the annular cleaning tool 42.

[0056] See also Figure 2 and Fig.11 As shown, the detection and marking device 5 includes a ball screw slide 51 installed, the ball screw slide 51 is installed with a marking nozzle 52, and the detection and marking device 5 also includes a detection camera 53 for detecting the surface of the casting 6.

[0057] An illumination lamp 54 is also installed beside the detection camera 53 .

[0058] During the working process, the detection camera 53 will continuously capture images of the surface of the casting 6 and transmit the images to the processing unit for analysis. When the processing unit finds that the casting 6 has a problem of leakage of the detection liquid, it will issue instructions to the ball screw slide 51 and the marking nozzle 52 to move them to the corresponding positions for marking. At the same time, the lighting lamp 54 will provide sufficient light to ensure that the camera can accurately capture the image of the surface of the casting 6. The entire detection and marking process is automated and intelligent, greatly improving the accuracy and efficiency of detection.

[0059] Specific working principle:

[0060] The push-and-block device 2 is connected to the gas pipeline. When the casting 6 needs to be inspected, the casting 6 to be inspected is placed on the rotating base 1 by a worker or a mechanical arm. The design of the rotating base 1 can ensure that the bottom of the casting 6 is stably limited and supported. Then the push-and-block device 2 moves downward from the top of the rotating base 1 to limit and block the top of the casting 6. A closed space is formed inside the casting 6 to facilitate subsequent liquid testing. The circulating infusion device 3 starts working to deliver the testing liquid to the rotating base 1. The testing liquid enters the casting 6 through the base and fills the internal space of the casting 6. While the testing liquid fills the inside of the casting 6, the outer wall cleaning device 4 starts working to clean the outer wall of the casting 6. This is to ensure that the detection marking device 5 can accurately detect any detection liquid leaking from the casting 6. During the detection, the rotating base 1 will also drive the fixed casting 6 to rotate at a uniform speed. When the casting 6 rotates, it will drive the outer wall of the casting 6 to pass through the detection marking device 5, so that the detection marking device 5 can fully detect the outer wall of the casting 6. If there is a leak in the casting 6, the detection marking device 5 will record the location of the leak and may notify the staff through sound and light signals or other methods. At the same time, the leaking area will be marked to facilitate maintenance personnel to quickly repair and handle. After the detection of the casting 6 is completed, the rotating base 1 will convey the detection inside the internal casting 6 to the circulating infusion device 3 for recycling. At the same time, the gas pipeline will convey airflow to the pushing and plugging device 2. The airflow passes through the pushing and plugging device 2 and enters the interior of the casting 6. The airflow enters the interior of the casting 6 to quickly discharge the detection liquid, and the airflow will also air-dry the inner wall of the casting 6. It can effectively improve the accuracy of detection and improve work efficiency.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A leak detection device for aluminum alloy castings, characterized in that: It comprises a rotating base (1), a pushing and blocking device (2), a circulating infusion device (3), an outer wall cleaning device (4) and a detection marking device (5); The rotating base (1) is used to limit the bottom of the casting (6) and can drive the casting (6) to rotate; The circulating infusion device (3) is arranged at the bottom of the rotating base (1), and the circulating infusion device (3) is used to transport the detection liquid to the rotating base (1); The push-and-block device (2) is arranged on the top of the rotating base (1), and is used to limit and block the top of the casting (6); The outer wall cleaning device (4) is installed on the pushing and blocking device (2), and the outer wall cleaning device (4) is used to clean the outer wall of the casting (6); A plurality of detection marking devices (5) are provided and mounted on the rotating base (1), and the detection marking devices (5) are used to automatically detect the outer wall of the casting (6); The push-and-plug device (2) comprises a limit mounting frame (21) mounted on the mounting base plate (11), a lifting push plate (22) mounted on the limit mounting frame (21), a plurality of second rotating mounting seats (24) mounted on the lifting push plate (22), and a docking plugging tool (25) mounted on each of the second rotating mounting seats (24), the docking plugging tool (25) being used for limiting and plugging the top of the casting (6); A second spiral connection hole (251) is provided at the axial center position of the docking sealing tool (25), a liquid level sensor (252) is provided inside the docking sealing tool (25), and a rotating guide wheel (253) is installed at the bottom of the docking sealing tool (25); The circulating infusion device (3) comprises a filtering liquid storage box (31) mounted at the bottom of the mounting base plate (11), an inclined filtering plate (33) being provided inside the filtering liquid storage box (31), an infusion pump (32) being installed on the side of the filtering liquid storage box (31), and an output end of the infusion pump (32) being connected to a three-way control valve (122); The outer wall cleaning device (4) comprises a lifting installation plate (41) installed below the lifting push plate (22), a plurality of annular cleaning tools (42) for cleaning the surface of the casting (6) are installed on the lifting installation plate (41), and the outer wall of the annular cleaning tool (42) is provided with a clamping protrusion (421); A plurality of annular mounting grooves (412) are installed on the lifting mounting plate (41), a plurality of T-shaped slots (411) are arranged inside the annular mounting groove (412), the T-shaped slots (411) are used to limit and clamp the clamping protrusions (421) of the annular cleaning tool (42), a clamping mounting ring (413) is installed inside the annular mounting groove (412), a plurality of clamping push blocks (4131) are arranged on the clamping mounting ring (413), the clamping push blocks (4131) are arranged inside the T-shaped slots (411), and a pushing spring (414) is also installed between the clamping mounting ring (413) and the annular mounting groove (412).

2. The aluminum alloy casting leak detection device according to claim 1, characterized in that: The rotating base (1) comprises a mounting base plate (11), a plurality of first rotating mounting seats (12) are mounted on the mounting base plate (11), a limiting placement seat (13) for limiting the placement of the bottom of the casting (6) is mounted on the first rotating mounting seats (12), and the bottom of the mounting base plate (11) also comprises a synchronous driving device for driving the plurality of first rotating mounting seats (12) to rotate.

3. The leak detection device for aluminum alloy castings according to claim 2, characterized in that: A rotating installation tube (121) is provided at the axis center position of the first rotating installation seat (12), a three-way control valve (122) is provided at the bottom of the rotating installation tube (121), and a threaded joint for installing a limit placement seat (13) is provided at the top of the rotating installation tube (121).

4. The leak detection device for aluminum alloy castings according to claim 3, characterized in that: A first spiral connection hole (131) is provided at the axial center position of the position limiting placement seat (13), a position limiting placement groove (132) is provided at the top of the position limiting placement seat (13), and a conical guide groove (133) is also provided at the axial center position of the position limiting placement groove (132).

5. The leak detection device for aluminum alloy castings according to claim 2, characterized in that: The detection and marking device (5) comprises a ball screw slide (51) mounted thereon, the ball screw slide (51) being mounted on a marking nozzle (52), and the detection and marking device (5) further comprises a detection camera (53) for detecting the surface of the casting (6).

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