Aluminum alloy shell pressure testing machine and method

Abstract

The invention relates to the technical field of pressure testing, and particularly discloses an aluminum alloy shell pressure testing machine and method. Comprising a rack, a workbench, a sealing mechanism and a pressure testing mechanism. The workbench is provided with a tool plate. The sealing mechanism comprises a sealing unit; the pressure test mechanism is arranged at the top of the tool plate; the pressure test mechanism further comprises a plurality of pressure test pipes communicated with the pressure test medium storage cabin, and the plurality of pressure test pipes penetrate through a first sealing plate arranged on the plurality of pressure test pipes and can extend into the shell; a pressure test medium is extracted from the pressure test medium storage cabin through the hydraulic pump and is conveyed into the shell through the pressure test pipe for pressure test operation; wherein the tool plate is further provided with a plurality of detachable first filling blocks and sealing rings, and the first filling blocks are used for filling an inner cavity of the shell. The effective volume of the inner cavity of the shell is reduced by the filling block, the pressurizing and discharging time is obviously shortened, the pressure test efficiency is improved, and the test cost is fundamentally reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure testing, and particularly to a pressure testing machine and method for aluminum alloy shells. Background Art

[0002] In the production and inspection processes of aluminum alloy shells and other types of container workpieces, pressure testing is a crucial link, which plays a decisive role in ensuring the quality and safety of products. Generally, pressure testing is divided into two types: pneumatic testing and hydraulic testing. The main purposes of these two tests are to detect the sealing performance, pressure resistance, and structural integrity of the shell. When using conventional pressure testing equipment for testing, the internal space of the shell will be completely filled with a pressure testing medium, which can be a liquid or a gas, and then pressure will be applied to the shell for testing. For shells with a large internal cavity, the pressure testing process requires a large amount of medium. Especially when using expensive or special pressure testing media, such as hydraulic oil, inert gas, etc., this will significantly increase the cost of the test. A larger pressure testing space takes longer to be completely filled with the medium, which not only prolongs the pressure testing cycle but also correspondingly reduces the production efficiency. After the test, the recovery or discharge of the pressure testing medium becomes a problem. Especially for oil or chemical test liquids, the treatment process is quite complex and may cause environmental pollution. In addition, the hydraulic pump needs to run for a long time to maintain the pressure testing state, which not only results in additional energy consumption but also increases the wear of the equipment.

[0003] In order to reduce the consumption of the pressure testing medium, the industry mainly establishes a medium storage and recycling system to recover and reuse the pressure testing medium after the test. However, this method still needs to handle a large amount of medium, and it is difficult to completely avoid waste for high-pressure or special media (such as inert gas); or precisely control the injection amount of the pressure testing medium according to the volume of the shell to reduce unnecessary waste, but for shells with a large internal space, it is still impossible to avoid a large amount of medium consumption.

[0004] In the patent "A pressure testing device for a flowmeter housing" (the authorized announcement number is CN221405124U, hereinafter referred to as the prior art 1), a housing pressure testing device is disclosed. In the prior art 1, a pressure testing device is used to conduct a pressure test on the flowmeter housing, covering key components such as a load-bearing seat, a bottom plate, screw holes, a pressure testing mechanism, a limiting component, a pressure gauge, and a housing body. Once the housing body is placed on the load-bearing seat, power is supplied to the electric push rod B through the power supply, and its output end pushes the limiting arc plate to move. Once the inner end of the limiting arc plate is in close contact with the outer side of the housing body, the power supply to the electric push rod B is stopped. Subsequently, the power supply switches to supply power to the electric push rod A, and its output end drives the test pressing plate to move, thereby causing the relative sliding of the guide post and the U-shaped plate, and at the same time, the limiting plate performs the limiting function. After the test pressing plate contacts the upper end of the housing body, pressure is continuously applied until the housing body is deformed. At this time, the pressure sensor transmits the pressure value to the pressure gauge for easy recording. However, this pressure testing device needs to completely fill the internal space of the housing with the pressure testing medium before applying the pressure test, which will result in a large amount of use of the pressure testing medium. Especially for large-sized housings, it not only increases the consumption of the medium but also prolongs the pressure testing cycle. In addition, after the test is completed, the recovery and treatment of the medium also pose challenges. Especially for oil or harmful chemical media, improper treatment may cause environmental pollution. Therefore, although this pressure testing device realizes automated testing to a certain extent, it still needs to be improved in terms of medium consumption and environmental protection. Summary of the Invention

[0005] In view of this, the embodiments of the present invention provide an aluminum alloy housing pressure testing machine and method to solve the problem that the existing pressure testing machine needs to completely fill the internal space of the housing with the pressure testing medium and then can apply pressure for testing during pressure testing, resulting in a large amount of use of the pressure testing medium and a long filling time.

[0006] In the first aspect, the embodiments of the present invention provide an aluminum alloy housing pressure testing machine, including a frame, a workbench, a sealing mechanism, and a pressure testing mechanism arranged on the frame; a tooling plate for placing the housing is further arranged on the workbench; the sealing mechanism includes a plurality of sealing units arranged on the workbench for sealing the opening on the housing; a sealing ring for sealing the bottom of the housing is arranged on the tooling plate; the pressure testing mechanism is arranged on the top of the tooling plate and a pressure testing medium storage chamber is further arranged on the frame; the pressure testing mechanism further includes a plurality of pressure testing pipes communicated with the storage chamber of the pressure testing medium; a first sealing plate for sealing the top of the housing is further arranged through the plurality of pressure testing pipes; the pressure testing medium is extracted from the pressure testing medium storage chamber by a hydraulic pump and is transported to the inside of the housing through the pressure testing pipes for pressure testing operations.

[0007] Preferably, it further includes a conveying mechanism arranged on the workbench;

[0008] The conveying mechanism is arranged on the workbench through the connection of a guide rail and a slider;

[0009] The conveying mechanism is driven by a conveying air cylinder arranged on the workbench; the piston rod of the conveying air cylinder is connected with the conveying mechanism through a connecting plate;

[0010] The tooling plate is arranged on the bearing plate of the conveying mechanism.

[0011] Preferably, a plurality of the sealing units are arranged around the conveying mechanism on the periphery of the tooling plate;

[0012] The sealing unit includes a bracket and a sealing air cylinder arranged on the bracket, and a sealing member for sealing the housing is arranged on the piston rod of the sealing air cylinder.

[0013] Preferably, a lifting mechanism is further arranged on the workbench;

[0014] The lifting mechanism includes a top plate fixed on the frame and a plurality of guiding columns arranged on the top plate;

[0015] The lifting mechanism further includes a lifting plate that moves based on the guiding columns through a guide sleeve;

[0016] A lifting air cylinder is further arranged on the top plate, and the piston rod of the lifting air cylinder is connected with the lifting plate.

[0017] Preferably, a plurality of the pressure test pipes are all arranged on the lifting plate and communicated with the storage cabin through pipes arranged on the lifting plate.

[0018] Preferably, a plurality of detachable first filling blocks are further arranged on the tooling plate;

[0019] A second filling block that is detachably arranged is further arranged on the first sealing plate;

[0020] A pipe channel through which the pressure test pipe passes is arranged on the second filling block, and a sealing arrangement is made between the pressure test pipe and the pipe channel;

[0021] Both the first filling block and the second filling block are used to fill the inner cavity of the housing.

[0022] Preferably, a plurality of limiting rods are further arranged on the lifting plate;

[0023] The limiting rods are arranged between the workbench and the lifting plate.

[0024] In a second aspect, a method for pressure testing an aluminum alloy housing is provided, including:

[0025] Placing the housing on an aluminum alloy housing pressure testing machine as described above;

[0026] Place the housing on the pressure testing machine;

[0027] Start the pressure testing machine to allow the pressure testing mechanism to fill the housing with a pressure testing medium;

[0028] Monitor the pressure data inside the housing to complete the pressure test.

[0029] Preferably, placing the housing on the pressure testing machine includes:

[0030] Place the housing on the tooling plate and fill the inner cavity of the housing through the first filling block and the second filling block;

[0031] Seal all the openings on the housing through the sealing mechanism;

[0032] Drive the first sealing plate to seal the top of the housing through the lifting mechanism;

[0033] Check the sealing effect.

[0034] Preferably, starting the pressure testing machine to allow the pressure testing mechanism to fill the housing with a pressure testing medium includes:

[0035] Slowly fill the pressure testing medium to the initial pressure and check for any obvious leaks;

[0036] Gradually increase the pressure and reach the target pressure;

[0037] When the pressure reaches the set value, ensure that the housing is in a stable pressure-bearing state for the expected pressure testing duration;

[0038] Gradually release the pressure inside the housing.

[0039] A pressure testing machine and method for an aluminum alloy housing provided by the present invention have the following beneficial effects:

[0040] During the pressure test of the present invention, filling blocks are used to reduce the pressure testing space inside the housing through physical filling, thereby reducing the usage amount of the pressure testing medium. Since the filling blocks occupy a part of the space inside the housing, the volume of the medium that needs to be filled is significantly reduced, fundamentally reducing the test cost. And the filling blocks reduce the effective volume of the pressure testing cavity, significantly shortening the pressurization and discharge time, improving the pressure testing efficiency. After reducing the medium volume, the running time and power consumption of the hydraulic pump are reduced, enhancing the energy-saving performance of the equipment; the detachable filling block design enables the pressure testing equipment to adapt to housings of different sizes without replacing the entire set of pressure testing devices, improving the versatility of the test equipment. After the pressure test, the remaining amount of the medium is reduced, making the discharge and recovery more convenient. Description of the Drawings

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, and all of these are within the protection scope of the present invention.

[0042] Figure 1 is a schematic structural diagram of an aluminum alloy shell testing press;

[0043] Figure 2 is a schematic structural diagram of the lifting mechanism and the shell part;

[0044] Figure 3 is a three-dimensional structural diagram of the lifting mechanism and the shell part;

[0045] Figure 4 is a schematic installation structure diagram of the tooling plate and the shell;

[0046] Figure 5 is a schematic installation structure diagram of the tooling plate and the first filling block;

[0047] Figure 6 is a schematic installation structure diagram of the tooling plate and the sealing ring;

[0048] Figure 7 is a schematic installation structure diagram of the lifting mechanism and the sealing unit;

[0049] Parts and numbers in the figure:

[0050] 100 - shell;

[0051] 200 - frame, 210 - workbench;

[0052] 310 - sealing unit, 311 - bracket, 312 - first type of bracket, 313 - second type of bracket, 314 - sealing cylinder, 315 - seal, 316 - first sealing plate, 317 - sealing ring, 318 - second sealing plate, 319 - third sealing plate;

[0053] 410 - pressure test pipe;

[0054] 500 - conveying mechanism, 510 - receiving plate, 521 - guide rail, 522 - slider, 523 - conveying cylinder, 524 - connecting plate;

[0055] 600 - lifting mechanism, 610 - top plate, 621 - guiding column, 622 - guide sleeve, 630 - lifting plate, 631 - limiting rod, 632 - pressing rod, 633 - damping block, 634 - spring, 640 - lifting cylinder;

[0056] 710 - first filling block, 720 - second filling block;

[0057] 810 - Tooling plate, 811 - Locating pin seat, 820 - Limiting part. Specific embodiments

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article, or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article, or device including the said elements. If there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present invention.

[0059] Embodiment 1

[0060] Please refer to Figure 1 , an aluminum alloy housing 100 testing press provided by an embodiment of the present invention includes a frame 200 and a workbench 210, a sealing mechanism, and a pressure testing mechanism provided on the frame 200; the sealing mechanism and the pressure testing mechanism are installed through the frame 200 to achieve sealing of the housing 100, so that the pressure testing operation can be carried out normally.

[0061] Furthermore, a tooling plate 810 for placing the housing 100 is further provided on the workbench 210; the sealing mechanism includes a plurality of sealing units 310 provided on the workbench 210 for sealing the openings on the housing 100; the sealing units 310 are arranged around the workbench 210 in a detachable manner, and each sealing unit 310 is connected to the workbench 210 through fasteners such as bolts, so as to facilitate quick replacement or adjustment according to the different sizes or shapes of the housing 100.

[0062] The tooling plate 810 is also provided with a positioning pin seat 811 for accurately positioning the housing 100. The positioning pin seat 811 is detachably arranged with the tooling plate 810 to adapt to different models of the housing 100. The tooling plate 810 is also used to ensure that the housing 100 does not shift during the pressure test, guaranteeing the accuracy and safety of the pressure test.

[0063] The pressure test mechanism is arranged on the top of the tooling plate 810, and a pressure test medium storage tank is also provided on the frame 200; the pressure test mechanism further includes a number of pressure test pipes 410 communicated with the storage tank of the pressure test medium. The pressure test medium is pumped from the storage tank of the pressure test medium by a hydraulic pump and is transported through the pressure test pipes 410 to the inside of the housing 100 for pressure test operations.

[0064] Furthermore, the sealing mechanism can also be provided with a first sealing plate 316 adapted to the opening at the top of the housing 100 on a number of the pressure test pipes 410; when the pressure test mechanism needs to conduct a pressure test, the pressure test structure is combined with the housing 100, and the opening at the top of the housing 100 is sealed through the setting of the first sealing plate 316.

[0065] Furthermore, the first sealing plate 316 is adapted to the opening at the top of the housing 100 and can be arranged at a position corresponding to the opening of the housing 100; the pressure test pipes 410 are installed at different positions and in different numbers; a number of the pressure test pipes 410 pass through the first sealing plate 316 arranged on the number of the pressure test pipes 410 and can extend into the housing 100.

[0066] During the pressure test operation, the first sealing plate 316 can effectively prevent the leakage of the pressure test medium, ensuring the sealing of the pressure test environment. In addition, the design of the pressure test pipes 410 enables the pressure test medium to enter the housing 100 evenly and quickly, improving the pressure test efficiency. At the same time, the hydraulic pump, as the power source, can stably and accurately control the conveying pressure and flow rate of the pressure test medium, thus meeting the requirements of different housings 100 for pressure tests. After the pressure test is completed, the pressure test mechanism can also quickly release the pressure test medium in the housing 100, facilitating the subsequent removal and cleaning of the housing 100.

[0067] In this embodiment, a number of detachable first filling blocks 710 and sealing rings 317 are specially designed and installed on the tooling plate 810. The function of these first filling blocks 710 is to effectively fill the inner cavity of the housing 100 to ensure the reasonable utilization and management of the internal space of the housing 100 during the pressure test and can also reduce the consumption of the pressure test medium.

[0068] In traditional pressure test equipment, in order to reduce the consumption of the pressure test medium, the following several methods are mainly adopted in the industry:

[0069] Medium circulation system: By establishing a medium storage and circulation recovery system, the pressure test medium is recovered and reused after the test.

[0070] However, this method still requires handling a large amount of medium, and it is difficult to completely avoid waste for high-pressure or special media (such as inert gases).

[0071] Gas-liquid composite pressure test: During the pressure test, gas is first used for pre-filling, and then liquid is injected for the pressure test to reduce the amount of liquid used. However, this method is difficult to control and may affect the test accuracy.

[0072] Quantitative pressure test: The injection amount of the pressure test medium is accurately controlled according to the volume of the housing 100 to reduce unnecessary waste. However, for the housing 100 with a large internal space, a large amount of medium consumption still cannot be avoided.

[0073] During the pressure test of this embodiment, a physical filling method is adopted, and filling blocks are used to significantly reduce the pressure test space inside the housing 100. This innovative method directly leads to a significant reduction in the amount of pressure test medium used. Since the filling blocks occupy a part of the space inside the housing 100, the volume of the pressure test medium to be filled is correspondingly greatly reduced, which fundamentally reduces the cost of the test.

[0074] In addition, since the use of the filling blocks reduces the effective volume of the pressure test chamber, the charging and discharging times are significantly shortened, and the pressure test efficiency is significantly improved. By reducing the volume of the pressure test medium, the running time and power consumption of the hydraulic pump are also reduced, thereby improving the energy saving of the equipment.

[0075] During the pressure test, the physical filling method of the filling blocks not only reduces the space inside the housing 100, but also this method of reducing the pressure test space directly leads to a significant reduction in the amount of pressure test medium used. Since the filling blocks occupy a part of the space inside the housing 100, the volume of the pressure test medium to be filled is correspondingly greatly reduced, which fundamentally reduces the cost of the test.

[0076] In addition, since the use of the filling blocks reduces the effective volume of the pressure test chamber, the charging and discharging times are significantly shortened, and the pressure test efficiency is significantly improved. By reducing the volume of the pressure test medium, the running time and power consumption of the hydraulic pump are also reduced, thereby improving the energy saving of the equipment.

[0077] Moreover, the detachable filler block design enables the pressure testing equipment to flexibly adapt to shells 100 of different sizes without replacing the entire set of pressure testing devices, thus improving the versatility and flexibility of the testing equipment. After the pressure test, due to the reduction in the volume of the medium, the remaining amount of the medium also decreases, making the discharge and recovery processes more convenient and further enhancing the efficiency and environmental friendliness of the entire pressure testing process.

[0078] When using this tooling plate 810 to conduct a sealing test on the shell 100, first, the shell 100 to be tested needs to be accurately placed at the designated position on the tooling plate 810 through the positioning function of the positioning pin seat 811. Subsequently, the edge part of the shell 100 is tightly sealed using the pre-set sealing ring 317 on the tooling plate 810. Next, operate the sealing cylinder 314 in the sealing unit 310 to push the sealing member 315 forward until the sealing member 315 is in close contact with the opening of the shell body of the shell 100 and achieves effective abutting sealing. Immediately afterwards, the pressure testing mechanism above the shell 100 is precisely brought into contact and cooperation with the shell 100 to ensure that the first sealing plate 316 on the pressure testing mechanism is closely attached to the corresponding part of the shell 100, thereby completing the sealing work on the top opening of the shell 100. At this time, the pressure testing pipe 410 will pass through the first sealing plate 316 and extend into the internal space of the shell 100. Finally, start the pressure testing mechanism, inject the pressure testing medium into the interior of the shell 100, and start the pressure test to inspect the sealing performance and structural strength of the shell 100.

[0079] Furthermore, in order to seal the openings on different said shells 100, a second sealing plate 318 can also be provided on the said tooling plate 810, and a third sealing plate 319 and other sealing plates for sealing the openings of the shell 100 can also be provided on the pressure testing pipe 410. The number, position, and size of the sealing plates can all be adjusted. The sealing plates provided on the pressure testing pipe 410 are in a sealed connection with the said sealing plates to prevent leakage of the pressure testing medium. And the design of these sealing plates enables the pressure testing equipment to flexibly adapt to the openings of shells 100 of different shapes and sizes, further enhancing the versatility and adaptability of the equipment. By adjusting the number, position, and size of the sealing plates, accurate and effective sealing of different shells 100 can be ensured, thereby improving the accuracy and reliability of the pressure testing results. In addition, the sealed connection design between the sealing plates not only prevents leakage of the pressure testing medium but also ensures the safety and stability during the pressure testing process.

[0080] Furthermore, several said sealing units 310 are arranged around the conveying mechanism 500 on the periphery of the tooling plate 810 and are detachably arranged with the workbench 210, enabling the sealing position to be adjusted to adapt to different shell 100 structures.

[0081] The sealing unit 310 includes a bracket 311 and a sealing cylinder 314 disposed on the bracket 311 to adjust the installation height and position of the sealing cylinder 314, so as to achieve the effect of adapting to the opening on the housing 100. A sealing member 315 for sealing the housing 100 is provided on the piston rod of the sealing cylinder 314; when it is necessary to seal the opening on the housing 100, the piston rod is driven by the sealing cylinder 314, so that the sealing member 315 abuts against the opening of the housing 100 to achieve the sealing of the opening.

[0082] Further, the bracket 311 includes a first type of bracket 312 and a second type of bracket 313; both the first type of bracket 312 and the second type of bracket 313 are installation parts of the sealing unit 310. The first type of bracket 312 is used for the independent installation of the sealing unit 310, while the second type of bracket 313 is used for the installation of multiple sealing units 310.

[0083] Further, in actual sealing operations, a sealing substance such as a sealing ring 317 is first provided in a circle at the place where the housing 100 or workpiece to be pressure-tested has an opening. When the opening on the housing 100 or workpiece abuts against the sealing unit 310 or the sealing plate for sealing, the sealing member 315 or the sealing ring 317 on the sealing unit 310 or the sealing plate will abut against the sealing component on the housing 100 or workpiece, achieving better sealing effect and preventing the pressure-testing medium from leaking.

[0084] Further, in order to achieve more accurate pressure testing of the pressure-testing mechanism and more stable sealing of the housing 100, a lifting mechanism 600 is further included and disposed on the workbench 210; through the movement of the lifting mechanism 600, the pressure-testing mechanism is moved closer to or away from the housing 100, and an additional pressing force can also be provided during pressure testing, so that the sealing effect is better.

[0085] The lifting mechanism 600 includes a top plate 610 fixed to the frame 200 and a number of guiding columns 621 provided on the top plate 610; the lifting mechanism 600 further includes a lifting plate 630 that moves along the guiding columns 621 through a guide sleeve 622; a lifting cylinder 640 is also provided on the top plate 610, and the piston rod of the lifting cylinder 640 is connected to the lifting plate 630. When lifting, the piston rod of the lifting cylinder 640 will extend or retract, thereby driving the lifting plate 630 to move up and down along the guiding columns 621. This design ensures the stability and accuracy of the lifting plate 630 during movement, enabling the pressure testing mechanism to accurately approach or move away from the housing 100 to achieve precise pressure testing operations. At the same time, during the lifting process of the lifting plate 630, it can also maintain the smoothness of its movement through the cooperation of the guide sleeve 622 and the guiding columns 621, avoiding unnecessary shaking or deviation during the pressure testing process, and further improving the accuracy and safety of the pressure testing.

[0086] Further, a number of the pressure testing pipes 410 are all provided on the lifting plate 630 and are communicated with the storage chamber through pipes provided on the lifting plate 630.

[0087] Further, a pressing rod 632 is also provided on the lifting plate 630 between the position where the housing 100 is provided. After the lifting mechanism 600 descends, the pressing rod 632 is abutted against the housing 100 to ensure the fixed position of the housing 100 and prevent the housing 100 from moving or tilting during the pressure testing process. The design of the pressing rod 632 enhances the stability of the pressure testing process, ensures that the pressure testing medium can be evenly and accurately applied to the housing 100, thereby improving the reliability and accuracy of the pressure testing results. In addition, the abutment of the pressing rod 632 against the housing 100 can also reduce the leakage risk during the pressure testing process to a certain extent and ensure the smooth progress of the pressure testing process.

[0088] A damping block 633 and a spring 634 are also provided on the pressing rod 632 to avoid excessive impact force generated when the pressing rod 632 abuts against the housing 100 and cause damage to the housing 100. The damping block 633 can effectively absorb the impact energy, while the spring 634 can buffer the impact force of the pressing rod 632 to a certain extent, making the pressing process smoother and softer. This design not only protects the integrity of the housing 100 but also ensures the continuity and safety of the pressure testing process, avoiding pressure testing failures or equipment damage caused by improper operation. At the same time, the combined use of the damping block 633 and the spring 634 also improves the adaptability and flexibility of the pressing rod 632, enabling the pressure testing equipment to adapt to housings 100 of different sizes and shapes, and further expanding the application range of the pressure testing equipment.

[0089] Furthermore, a second filling block 720 is detachably arranged on the first sealing plate 316 to seal the opening part at the bottom of the housing 100; it can also be adjusted according to different housings 100, including the quantity, position or size, etc.

[0090] A pipe channel through which the pressure test pipe 410 passes is arranged on the second filling block 720, and a sealed setting is provided between the pressure test pipe 410 and the pipe channel.

[0091] This design enables the pressure test pipe 410 to move synchronously with the lifting of the lifting plate 630, so as to ensure that the pressure test medium can be accurately conveyed into the housing 100 for pressure testing. At the same time, the pipeline design on the lifting plate 630 also ensures the stability and continuity of the pressure test medium during the conveying process, avoiding the occurrence of medium leakage or interruption, and further improving the efficiency and reliability of the pressure test.

[0092] The detachable setting of the second filling block 720 provides greater flexibility and applicability. According to the shapes and sizes of different housings 100, users can choose second filling blocks 720 with different quantities, positions or sizes for installation to ensure perfect sealing of the opening part at the bottom of the housing 100. This design not only improves the versatility of the pressure test equipment, but also greatly reduces the operation difficulty and cost of users.

[0093] Furthermore, a plurality of limiting rods 631 are also arranged on the lifting plate 630, and the limiting rods 631 are arranged between the workbench 210 and the lifting plate 630. In order to prevent the lifting mechanism 600 from driving the pressure test mechanism and the sealing plate to exceed the expected stroke, by arranging a plurality of limiting rods 631 on the lifting plate 630, when the lifting mechanism 600 may exceed the expected stroke, the limiting rods 631 will abut against the workbench 210 to forcibly limit the movement of the lifting mechanism 600. This design not only effectively prevents the problems of equipment damage or inaccurate pressure testing caused by excessive stroke, but also ensures the safety and stability of the entire pressure test process. The setting positions and quantities of the limiting rods 631 can also be reasonably adjusted according to specific pressure test requirements and equipment structures to meet the requirements under different pressure test scenarios. At the same time, the abutting manner between the limiting rods 631 and the workbench 210 has also been carefully designed, such as using damping blocks 633, rubber blocks, etc., to ensure the stability and reliability during abutting and avoid the equipment shaking or poor pressure test effect caused by improper abutting. This limiting design not only improves the overall performance of the pressure test equipment, but also provides a more convenient and safe pressure test experience for users.

[0094] Embodiment 2

[0095] Please refer to Figure 1, an embodiment of the present invention provides a conveying mechanism 500 for an aluminum alloy housing 100 testing press to achieve automatic loading or unloading of the housing 100 on a tooling plate 810.

[0096] Since the housing 100 itself has a certain mass, when manually placed at the pressure testing position, there may be deviations in placement due to weight issues, which may even cause damage to the tooling plate 810 or even the testing press. Therefore, the conveying mechanism 500 can automatically convey the housing 100 to the designated pressure testing position, which not only improves work efficiency but also avoids errors and damages caused by improper manual operation. The conveying mechanism 500 accurately positions the housing 100 on the tooling plate 810 to ensure stability and accuracy during the pressure testing process.

[0097] The conveying mechanism 500 is arranged on the workbench 210 through the connection of a guide rail 521 and a slider 522. At least a pair of the slide rails are arranged on both sides of the workbench 210; the slider 522 is arranged at the bottom of the receiving plate 510, and the receiving plate 510 is displaced based on the workbench 210 through the cooperation of the slider 522 and the guide rail 521; the conveying mechanism 500 is driven by a conveying cylinder 523 arranged on the workbench 210; the piston rod of the conveying cylinder 523 is connected to the conveying mechanism 500 through a connecting plate 524; and the tooling plate 810 is arranged on the receiving plate 510 of the conveying mechanism 500, so as to realize the movement of the housing 100 on the tooling plate 810; when pressure testing is required, the conveying mechanism 500 conveys the housing 100 to the pressure testing position; when the pressure testing is completed, the conveying mechanism 500 sends out the housing 100 again.

[0098] In addition, in order to ensure the smoothness and precision of the conveying process, a limiting member 820 is also arranged on the workbench 210. The limiting member 820 adopts a buffer limiting damper with the model MA600. The limiting member 820 is arranged at one end of the receiving plate 510. When the receiving plate 510 is about to exceed the limit position, the limiting member 820 limits the receiving plate 510, and the buffer limiting damper can also reduce the impact force at the moment of contact to protect the receiving plate 510, the tooling plate 810 and the housing 100 from damage. This design not only enhances the durability of the equipment but also further improves the reliability and safety of the pressure testing process. At the same time, the precise control of the limiting member 820 ensures the position accuracy of the housing 100 during the conveying process, laying a solid foundation for the subsequent pressure testing work.

[0099] Embodiment 3

[0100] Please refer to Figure 1, an embodiment of the present invention provides a pressure test method for an aluminum alloy housing 100. The pressure test method in this embodiment performs a pressure test operation through a pressure tester for an aluminum alloy housing 100 as described in Embodiment 1 and Embodiment 2.

[0101] A pressure test method for an aluminum alloy housing 100 includes:

[0102] Place the housing 100 on the tooling plate 810 of the pressure tester for an aluminum alloy housing 100 as described above. When installing the housing 100, first set a positioning pin seat 811 on the tooling plate 810 to position and install the housing 100.

[0103] Seal all openings on the housing 100 through a sealing mechanism; drive the first sealing plate 316 to seal the top of the housing 100 through a lifting mechanism 600.

[0104] After the housing 100 is placed on the tooling plate 810, its edge contacts the sealing ring 317 on the tooling plate 810 to achieve sealing; the openings on the side of the housing 100 are sealed in a butt-joint manner through a plurality of sealing units 310 and the second sealing plate 318. Since the first filling block 710 is arranged on the tooling plate 810, the first filling of the inner cavity is completed after the housing 100 is placed on the tooling plate 810.

[0105] Then drive the lifting plate 630 to move towards the housing 100 through the lifting mechanism 600, so that the first sealing plate 316 and the third sealing plate 319 complete the sealing of the housing 100, and the pressure test pipe 410 also enters the interior of the housing 100; make the first filling block 710 and the second filling block 720 fill the inner cavity of the housing 100; make preparations for the pressure test.

[0106] Check the sealing effect;

[0107] Generally, the soapy water leak detection method can be adopted

[0108] 1. Preparation work

[0109] Sealing treatment: First, ensure that all interfaces, seals 315 and joints of the housing 100 are correctly installed and sealed;

[0110] Connect the air pressure source: Connect the sealed housing 100 to the air pressure source and equip it with a pressure gauge for real-time monitoring.

[0111] 2. Inflation and stabilization

[0112] Inflation: Slowly fill the housing 100 with the test gas (usually air or ammonia gas) until the internal pressure reaches the predetermined test pressure (e.g., 0.2 MPa or the pressure set according to actual requirements).

[0113] Stable observation: Keep for a period of time (usually 3 minutes), observe whether the reading of the pressure gauge is stable, and ensure that the internal gas is evenly distributed. Apply soapy water.

[0114] Prepare soapy water: Prepare the soapy water solution.

[0115] Even application: Use a sprayer or brush to evenly apply the soapy water to all sealing interfaces and joints and observe the generation of bubbles.

[0116] Detect leakage points: After applying the soapy water, carefully observe whether there are bubbles at each sealing point.

[0117] If bubbles appear, it indicates that there is gas leakage at this part, and the seal may not be in place or the seal 315 is defective.

[0118] If no bubbles are generated and the pressure remains stable, it indicates that the sealing effect is good. After the detection is completed, release the test gas and prepare for the pressure test operation.

[0119] Start the pressure tester to fill the housing 100 with the pressure test medium by the pressure test mechanism.

[0120] Slowly fill the pressure test medium to the initial pressure and check for obvious leakage.

[0121] Gradually increase the pressure and reach the target pressure.

[0122] When the pressure reaches the set value, ensure that the housing 100 is in a stable pressure-bearing state for the expected pressure test duration.

[0123] Gradually release the internal pressure of the housing 100.

[0124] During the pressure test, it is necessary to closely monitor the change of the pressure gauge reading and the overall condition of the housing 100. In the initial pressure filling stage, observe whether there is an obvious pressure drop or abnormal leakage, which can initially judge the sealing performance of the housing 100. As the pressure gradually increases, it is necessary to check each sealing part again to ensure that it can still maintain a good sealing state under higher pressure. At the same time, observe whether there is deformation or abnormal noise in the housing 100 to evaluate its pressure-bearing capacity. When the pressure reaches the set value, maintain a stable pressure-bearing state for a period of time, which helps to further test the strength and sealing performance of the housing 100. During this period, the reading of the pressure gauge should be continuously monitored to ensure that the pressure remains stable. After the pressure test is completed, gradually release the pressure inside the housing 100 to avoid sudden pressure relief causing damage to the housing 100. At the same time, check whether there are cracks or deformations on the surface of the housing 100 due to the pressure test to comprehensively evaluate its quality.

[0125] Monitor the pressure data in the housing 100 to complete the pressure test.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aluminum alloy shell pressure testing machine, comprising a frame (200), a workbench (210) arranged on the frame (200), a sealing mechanism and a pressure testing mechanism; characterized in that: The workbench (210) is also provided with a tooling plate (810) for placing the shell (100); The sealing mechanism comprises a plurality of sealing units (310) arranged on the workbench (210) for sealing the openings on the shell (100); a sealing ring (317) for sealing the bottom of the shell is arranged on the tooling plate (810); The pressure test mechanism is arranged on the top of the tooling plate (810) and a pressure test medium storage chamber is also arranged on the frame (200); the pressure test mechanism also includes a plurality of pressure test tubes (410) connected to the pressure test medium storage chamber; a first sealing plate (316) for sealing the top of the shell is also arranged through the plurality of pressure test tubes; The pressure test medium is extracted from the pressure test medium storage chamber by a hydraulic pump and transported to the housing (100) through the pressure test pipe (410) for pressure test operation.

2. The aluminum alloy housing pressure testing machine according to claim 1, characterized in that: It also includes a conveying mechanism (500) disposed on the workbench (210); The conveying mechanism (500) is arranged on the workbench (210) through the connection between the guide rail (521) and the slider (522); The conveying mechanism (500) is driven by a conveying cylinder (523) disposed on the workbench (210); a piston rod of the conveying cylinder (523) is connected to the conveying mechanism (500) via a connecting plate (524); The tooling plate (810) is arranged on the receiving plate (510) of the conveying mechanism (500).

3. The aluminum alloy housing pressure testing machine according to claim 2, characterized in that: A plurality of sealing units (310) are arranged around the conveying mechanism (500) and on the periphery of the tooling plate (810); The sealing unit (310) comprises a bracket (311) and a sealing cylinder (314) arranged on the bracket (311), and a sealing member (315) for sealing the housing (100) is provided on the piston rod of the sealing cylinder (314).

4. The aluminum alloy housing pressure testing machine according to claim 1, characterized in that: It also includes a lifting mechanism (600) disposed on the workbench (210); The lifting mechanism (600) comprises a top plate (610) fixed on the frame (200) and a plurality of guide columns (621) arranged on the top plate (610); The lifting mechanism (600) further comprises a lifting plate (630) that moves based on the guide column (621) via a guide sleeve (622); A lifting cylinder (640) is also provided on the top plate (610), and a piston rod of the lifting cylinder (640) is connected to the lifting plate (630).

5. The aluminum alloy housing pressure testing machine according to claim 4, characterized in that: The plurality of tubes (410) are all arranged on the lifting plate (630) and are connected to the storage cabin via a pipeline arranged on the lifting plate (630).

6. The aluminum alloy housing pressure testing machine according to claim 1, characterized in that: The tooling plate (810) is also provided with a plurality of detachable first filling blocks (710); The first sealing plate (316) is also provided with a detachable second filling block (720); The second filling block (720) is provided with a tube channel through which the pressure test tube (410) passes, and the pressure test tube (410) and the tube channel are sealed. The first filling block (710) and the second filling block (720) are both used to fill the inner cavity of the shell (100).

7. The aluminum alloy housing pressure testing machine according to claim 4, characterized in that: The lifting plate (630) is also provided with a plurality of limiting rods (631); The limiting rod (631) is arranged between the workbench (210) and the lifting plate (630).

8. A pressure testing method for an aluminum alloy shell, characterized in that: include: Placing the shell (100) on an aluminum alloy shell press tester as claimed in any one of claims 1 to 7; placing the housing (100) on a pressure testing machine; Starting the pressure test machine to allow the pressure test mechanism to fill the housing (100) with a pressure test medium; The pressure data in the housing (100) is monitored to complete the pressure test.

9. The aluminum alloy shell pressure testing method according to claim 8, characterized in that: Placing the housing (100) on a pressure testing machine comprises: Placing the shell (100) on the tooling plate (810), and filling the inner cavity of the shell (100) with the first filling block (710) and the second filling block (720); Sealing all openings on the housing (100) using a sealing mechanism; The first sealing plate (316) is driven by a lifting mechanism (600) to seal the top of the housing (100); Check the sealing effect.

10. The aluminum alloy shell pressure testing method according to claim 8, characterized in that: The starting of the pressure test machine to enable the pressure test mechanism to fill the housing (100) with a pressure test medium comprises: Slowly fill the pressure test medium to the initial pressure and check for obvious leakage; Gradually increase the pressure and reach the target pressure; When the pressure reaches the set value, the housing (100) is ensured to be in a stable pressure state for a predetermined pressure test time; The internal pressure of the housing (100) is gradually released.

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