Automatic sealing mechanism for air tightness detection

Abstract

The utility model discloses an automatic plugging mechanism for air tightness detection, including device body, device body includes base, workstation, main dustproof frame, sealing device, plugging device, the workpiece of detection and press tightly plugging sensor detection device, workstation installs at the top of base, main dustproof frame installs at the top of workstation, sealing device installs in the left -hand end inside main dustproof frame, plugging device installs in the right -hand end inside main dustproof frame, the workpiece of detection installs at the top center of workstation and is located between sealing device and plugging device, main dustproof frame inside is equipped with fixed plate, press tightly plugging sensor detection device installs on fixed plate. This kind of device has eliminated artificial error greatly, has improved the operation efficiency of air tightness detection significantly, and more through the design of multiple interface synchronous plugging, accurate guide structure and real -time monitoring function, has guaranteed the consistency and plugging accuracy of each interface seal, has improved the reliability of air tightness detection result greatly finally.

Description

Technical Field

[0001] This utility model relates to the field of workpiece airtightness testing technology, specifically an automatic sealing mechanism for airtightness testing. Background Technology

[0002] An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, and electric motors. Internal combustion engines, for example, typically convert chemical energy into mechanical energy. The term "engine" can refer to both the power-generating device and the entire machine including the power unit (e.g., gasoline engine, aircraft engine). Engines originated in England, so the concept of an engine also originates from English, where it originally meant "a mechanical device that generates power."

[0003] Existing engine processing equipment typically involves manual sealing operations for airtightness testing of engine workpieces. This method is inefficient, prone to human error, and often has multiple air passage interfaces that need to be sealed. Existing equipment may not be able to seal multiple interfaces simultaneously and accurately, resulting in inconsistent seals during airtightness testing and affecting the reliability of the test results.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic sealing mechanism for airtightness testing, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic sealing mechanism for airtightness testing, comprising a device body, the device body including a base, a worktable, a main dustproof frame, a sealing device, a sealing device, a workpiece to be tested, and a pressure sealing sensor detection device. The worktable is mounted on the top of the base, the main dustproof frame is mounted on the top of the worktable, the sealing device is mounted inside the left end of the main dustproof frame, the sealing device is mounted inside the right end of the main dustproof frame, the workpiece to be tested is mounted at the center of the top of the worktable and located between the sealing device and the sealing device, a fixing plate is installed inside the main dustproof frame, and the pressure sealing sensor detection device is mounted on the fixing plate; the sealing device includes a first fixing frame, a detection medium mounting plate, a first hydraulic rod, and a sealing gas flow transmission head, the detection medium mounting plate is located inside the first fixing frame, the first hydraulic rod is mounted inside the first fixing frame, the drive end of the first hydraulic rod is connected to the detection medium mounting plate, and three sealing gas flow transmission heads are provided, all three of which are mounted inside the detection medium mounting plate.

[0009] Preferably, the sealing device includes a second fixing frame, a second hydraulic rod, a sealing plate, and sealing heads. The sealing plate is located inside the second fixing frame, the second hydraulic rod is installed inside the second fixing frame, the driving end of the second hydraulic rod is connected to the outer end of the sealing plate, and there are three sealing heads, all of which are installed inside the sealing plate.

[0010] Preferably, the compression and sealing sensor detection device includes an upper hydraulic column, an upper pressure plate, a detection sensor, and a guide rod. The upper hydraulic column is installed on the top of the fixed plate, the upper pressure plate is located below the fixed plate, the bottom drive end of the upper hydraulic column is connected to the top of the upper pressure plate, a plurality of detection sensors are provided and all of the detection sensors are installed at the bottom of the upper pressure plate, and a set of guide rods are provided and a set of guide rods are respectively installed on the top of the upper pressure plate.

[0011] Preferably, the top of the fixing plate is provided with a set of sliding sleeves distributed symmetrically, and a set of guide rods respectively pass through a set of sliding sleeves.

[0012] (III) Beneficial Effects

[0013] This utility model provides an automatic sealing mechanism for airtightness testing. It has the following beneficial effects:

[0014] This solution presents a fully automated system for airtightness testing, comprising an automatic sealing mechanism, a sealing device, and a pressure sealing sensor detection device. This system completely replaces manual operation, significantly improving the efficiency of airtightness testing and eliminating human error. Utilizing three gas flow transmission heads in the sealing device and three sealing heads in the sealing device, synchronous hydraulic rods drive multiple gas path interfaces to achieve precise and synchronized sealing, ensuring consistent sealing across all interfaces and preventing differences in sealing from affecting test results. Simultaneously, the pressure sealing sensor detection device uses a hydraulic column to drive an upper pressure plate, with a guide structure consisting of a guide rod and a sliding sleeve to ensure sealing accuracy. Furthermore, several detection sensors at the bottom of the upper pressure plate (such as pressure sensors, flow meters, or helium mass spectrometers, which monitor changes in internal pressure or the flow / concentration of leaking media to determine if the workpiece is leaking; if the pressure drops too quickly or the leakage exceeds the limit, the airtightness is deemed unqualified) monitor the sealing status in real time, further ensuring testing reliability. This system comprehensively solves the problems of low efficiency, large errors, and inconsistent sealing across multiple interfaces inherent in existing technologies, providing an efficient, accurate, and reliable automated solution for airtightness testing of engine workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sealing device of this utility model;

[0017] Figure 3 This is a schematic diagram of the sealing device of this utility model.

[0018] In the diagram, 1. Device body; 2. Base; 3. Workbench; 4. Main dustproof frame; 5. Sealing device; 6. Blocking device; 7. Workpiece to be tested; 8. Pressing and blocking sensor detection device; 9. Fixing plate; 10. First fixing frame; 11. Detection medium mounting plate; 12. First hydraulic rod; 13. Blocking gas flow transmission head; 14. Second fixing frame; 15. Second hydraulic rod; 16. Blocking plate; 17. Blocking head; 18. Upper hydraulic column; 19. Upper pressure plate; 20. Detection sensor; 21. Guide rod; 22. Sliding sleeve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution:

[0021] Example 1

[0022] To address the aforementioned problems: existing engine processing equipment typically relies on manual sealing operations for airtightness testing of engine workpieces, which is inefficient, prone to human error, and often has multiple air passage interfaces that need to be sealed. Existing equipment may not be able to seal multiple interfaces simultaneously and accurately, leading to inconsistent sealing during airtightness testing and affecting the reliability of the test results.

[0023] The solution is as follows: An automatic sealing mechanism for airtightness testing includes a device body 1. The device body 1 includes a base 2, a worktable 3, a main dustproof frame 4, a sealing device 5, a sealing device 6, a workpiece to be tested 7, and a pressing and sealing sensor detection device 8. The worktable 3 is installed on top of the base 2, the main dustproof frame 4 is installed on top of the worktable 3, the sealing device 5 is installed inside the main dustproof frame 4 at the left end, the sealing device 6 is installed inside the main dustproof frame 4 at the right end, and the workpiece to be tested 7 is installed at the center of the top of the worktable 3, located between the sealing device 5 and the sealing device 6. 4. An internal fixing plate 9 is installed. The compression sealing sensor detection device 8 is installed on the fixing plate 9. The sealing device 6 includes a first fixing frame 10, a detection medium mounting plate 11, a first hydraulic rod 12, and a sealing gas flow transmission head 13. The detection medium mounting plate 11 is located inside the first fixing frame 10. The first hydraulic rod 12 is installed inside the first fixing frame 10. The driving end of the first hydraulic rod 12 is connected to the detection medium mounting plate 11. There are three sealing gas flow transmission heads 13. All three sealing gas flow transmission heads 13 are installed inside the detection medium mounting plate 11.

[0024] Analysis of the above: The first hydraulic rod 12 drives the detection medium mounting plate 11 to move inside the first fixed frame 10, causing the three sealing gas flow transmission heads 13 to approach and align with the corresponding gas path interface of the workpiece 7 to be tested, thus achieving sealing while transmitting the detection medium; after the workpiece 7 is in place, the first hydraulic rod 12 extends, pushing the detection medium mounting plate 11 and the sealing gas flow transmission heads 13 to precisely align with the workpiece's gas path interface; after the test is completed, the first hydraulic rod 12 retracts, causing the components to reset; through the first hydraulic rod 12, automated sealing is achieved, and the three sealing gas flow transmission heads 13 can simultaneously seal multiple interfaces, improving efficiency while avoiding human error and ensuring the stability of the detection medium transmission.

[0025] Example 2:

[0026] Please see Figure 1-3The present invention provides a technical solution based on Embodiment 1: the sealing device 5 includes a second fixing frame 14, a second hydraulic rod 15, a sealing plate 16 and a sealing head 17. The sealing plate 16 is located inside the second fixing frame 14. The second hydraulic rod 15 is installed inside the second fixing frame 14. The driving end of the second hydraulic rod 15 is connected to the outer end of the sealing plate 16. There are three sealing heads 17, and all three sealing heads 17 are installed inside the sealing plate 16.

[0027] Analysis of the above: The second hydraulic rod 15 drives the sealing plate 16 to move inside the second fixed frame 14, so that the three sealing heads 17 approach and seal the other side of the air passage interface of the workpiece 7 to be tested; after the workpiece 7 to be tested is in place, the second hydraulic rod 15 extends, pushing the sealing plate 16 and the sealing heads 17 to seal with the workpiece interface; after the test is completed, the second hydraulic rod 15 retracts and resets; the second hydraulic rod 15 realizes automatic sealing, and the three sealing heads 17 simultaneously seal multiple interfaces, which, together with the sealing device 6, ensures the consistency of the sealing of each interface, thereby ensuring the reliability of the airtightness test results and solving the problem of inconsistent sealing of multiple interfaces in the prior art.

[0028] Example 3:

[0029] Please see Figure 1-3 This utility model provides a technical solution based on Embodiment 1: The pressing and sealing sensor detection device 8 includes an upper hydraulic column 18, an upper pressure plate 19, a detection sensor 20, and a guide rod 21. The upper hydraulic column 18 is installed on the top of the fixed plate 9, and the upper pressure plate 19 is located below the fixed plate 9. The bottom driving end of the upper hydraulic column 18 is connected to the top of the upper pressure plate 19. There are several detection sensors 20, and all of the detection sensors 20 are installed on the bottom of the upper pressure plate 19. There is a set of guide rods 21, and a set of guide rods 21 are respectively installed on the top of the upper pressure plate 19.

[0030] Analysis of the above: The upper hydraulic column 18 drives the upper pressure plate 19 to move up and down. Several detection sensors 20 at the bottom of the upper pressure plate 19 monitor the sealing status in real time. The guide rod 21 provides guidance for the movement of the upper pressure plate 19 to ensure its accuracy. When the sealing device 5 and the sealing device 6 perform sealing, the upper hydraulic column 18 drives the upper pressure plate 19 to move downward to assist in pressing the workpiece. At the same time, the detection sensors 20 monitor whether the sealing is in place. After the detection is completed, the upper hydraulic column 18 drives the upper pressure plate 19 to reset upward. The upper hydraulic column 18 realizes the automation of pressing, the detection sensors 20 provide real-time feedback on the sealing status to ensure the accuracy of sealing, and the guide rod 21 ensures the stability of the movement of the upper pressure plate 19, further improving the reliability of airtightness detection.

[0031] Example 4:

[0032] Please see Figure 1-3The present invention provides a technical solution based on Embodiment 1: the top of the fixed plate 9 is provided with a set of sliding sleeves 22 distributed in a symmetrical manner, and a set of guide rods 21 respectively pass through a set of sliding sleeves 22.

[0033] Analysis of the above content: The guide rod 21 passes through the sliding sleeve 22 to guide the up and down movement of the upper pressure plate 19 and prevent it from deviating; when the upper pressure plate 19 moves up and down, the guide rod 21 slides synchronously in the sliding sleeve 22; in cooperation with the guide rod 21, the guiding accuracy of the movement of the upper pressure plate 19 is further enhanced, ensuring the accuracy of the pressing and detection actions, and improving the stability and reliability of the entire device.

[0034] Working principle: During operation, the workpiece 7 to be tested is precisely placed at the top center of the workbench 3, between the sealing device 5 and the plugging device 6. The entire mechanism then starts the automated operation process: In the sealing device 5, the second hydraulic rod 15, which is fixedly supported by the second fixed frame 14, precisely drives the plugging plate 16 to move towards the workpiece side, causing the three plugging heads 17 installed on the inner side of the plugging plate 16 to simultaneously fit against the multi-airway interface on the left side of the workpiece, achieving a reliable seal. At the same time, the first hydraulic rod 12 on the first fixed frame 10 of the plugging device 6 synchronously drives the detection medium mounting plate 11 to move, so that the three plugging gas flow transmission heads 13 on the plate precisely connect to the corresponding airway interface on the right side of the workpiece. While completing the plugging, the detection medium is stably transmitted, effectively avoiding the problem of asynchronous plugging of multiple interfaces during manual operation. To further ensure sealing accuracy and detection reliability, the pressing and sealing sensor detection device 8 installed on the fixed plate 9 inside the main dustproof frame 4 is activated simultaneously. The upper hydraulic column 18 drives the upper pressure plate 19 to move down smoothly, which not only helps to press the workpiece 7 to be tested to prevent its displacement, but also monitors the sealing status of each interface in real time through several detection sensors 20 at the bottom of the upper pressure plate 19, and promptly provides feedback on whether the sealing is in place. A set of guide rods 21 installed on the top of the upper pressure plate 19 cooperates with a set of symmetrical sliding sleeves 22 on the fixed plate 9 to provide precise guidance for the movement of the upper pressure plate 19, completely eliminating the phenomenon of deviation. The entire process, through the coordinated operation of various components, achieves fully automated operation from workpiece positioning, synchronous sealing and plugging of multiple interfaces, clamping and fixing to status monitoring. It not only completely replaces the traditional manual plugging operation, greatly eliminating human error and significantly improving the efficiency of airtightness testing, but also ensures the consistency and accuracy of sealing of each interface through the synchronous plugging design of multiple interfaces, precise guiding structure and real-time monitoring function. Ultimately, it greatly improves the reliability of airtightness test results and successfully solves the core problems of low efficiency of manual operation, inconsistent sealing of multiple interfaces and unstable test results in the existing technology.

[0035] The present invention comprises: 1. Device body; 2. Base; 3. Workbench; 4. Main dustproof frame; 5. Sealing device; 6. Blocking device; 7. Workpiece to be tested; 8. Pressing and blocking sensor detection device; 9. Fixing plate; 10. First fixing frame; 11. Detection medium mounting plate; 12. First hydraulic rod; 13. Blocking gas flow transmission head; 14. Second fixing frame; 15. Second hydraulic rod; 16. Blocking plate; 17. Blocking head; 18. Upper hydraulic column; 19. Upper pressure plate; 20. Detection sensor; 21. Guide rod; 22. Sliding sleeve. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional methods. As demonstrated by the experimental method, the problem solved by this utility model is that existing engine processing equipment generally relies on manual sealing operations for airtightness testing of engine workpieces. This is inefficient, prone to human error, and the engine workpiece often has multiple air passage interfaces that need to be sealed. Existing equipment may not be able to seal multiple interfaces simultaneously and accurately, resulting in inconsistent sealing during airtightness testing and affecting the reliability of the test results. This utility model, through the combination of the above-mentioned components, can significantly eliminate human error and significantly improve the efficiency of airtightness testing. Furthermore, through the multi-interface synchronous sealing design, precise guiding structure, and real-time monitoring function, it ensures the consistency and accuracy of sealing of each interface, ultimately greatly improving the reliability of airtightness test results.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic sealing mechanism for airtightness testing, characterized in that: The device includes a main body (1), which includes a base (2), a workbench (3), a main dustproof frame (4), a sealing device (5), a plugging device (6), a workpiece to be tested (7), and a pressing and plugging sensor detection device (8). The workbench (3) is installed on the top of the base (2), the main dustproof frame (4) is installed on the top of the workbench (3), the sealing device (5) is installed on the left side inside the main dustproof frame (4), the plugging device (6) is installed on the right side inside the main dustproof frame (4), the workpiece to be tested (7) is installed at the center of the top of the workbench (3) and is located between the sealing device (5) and the plugging device (6). A fixing plate (9) is installed inside the main dustproof frame (4), and the pressing and plugging sensor detection device (8) is installed on the fixing plate (9). The sealing device (6) includes a first fixed frame (10), a detection medium mounting plate (11), a first hydraulic rod (12), and a sealing gas flow transmission head (13). The detection medium mounting plate (11) is located inside the first fixed frame (10). The first hydraulic rod (12) is installed inside the first fixed frame (10). The driving end of the first hydraulic rod (12) is connected to the detection medium mounting plate (11). There are three sealing gas flow transmission heads (13), and all three sealing gas flow transmission heads (13) are installed inside the detection medium mounting plate (11).

2. The automatic sealing mechanism for airtightness testing according to claim 1, characterized in that: The sealing device (5) includes a second fixing frame (14), a second hydraulic rod (15), a sealing plate (16), and a sealing head (17). The sealing plate (16) is located inside the second fixing frame (14). The second hydraulic rod (15) is installed inside the second fixing frame (14). The driving end of the second hydraulic rod (15) is connected to the outer end of the sealing plate (16). There are three sealing heads (17), and all three sealing heads (17) are installed inside the sealing plate (16).

3. The automatic sealing mechanism for airtightness testing according to claim 1, characterized in that: The compression sealing sensor detection device (8) includes an upper hydraulic column (18), an upper pressure plate (19), a detection sensor (20), and a guide rod (21). The upper hydraulic column (18) is installed on the top of the fixed plate (9), and the upper pressure plate (19) is located below the fixed plate (9). The bottom drive end of the upper hydraulic column (18) is connected to the top of the upper pressure plate (19). There are several detection sensors (20), and all of the detection sensors (20) are installed at the bottom of the upper pressure plate (19). There is a set of guide rods (21), and a set of guide rods (21) are installed on the top of the upper pressure plate (19).

4. The automatic sealing mechanism for airtightness testing according to claim 3, characterized in that: The top of the fixed plate (9) is provided with a set of sliding sleeves (22) distributed symmetrically, and a set of guide rods (21) pass through a set of sliding sleeves (22).

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