Automobile engine manifold air tightness detection device

Abstract

The utility model relates to the technical field of air tightness detection, and especially relates to an automobile engine manifold air tightness detection device comprising a clamping assembly; mounting parts are symmetrically arranged on one side of the top end of the test box, supporting shafts are rotationally arranged in inner holes of the mounting parts, an operation table is arranged on the supporting shafts, the clamping assembly is arranged on the operation table, the engine manifold is fixed to the operation table through the pressurizing assembly, and a cavity of the test box is filled with test liquid. The engine manifold completely enters the test liquid during testing; the pressurizing assembly is arranged on the operation table, and the pressurizing assembly is used for filling the engine manifold with gas; the driving assembly is arranged on the test box, and the driving assembly is used for providing rotation power for the supporting shaft to drive the operation table; the operation procedure is simple, and the shape adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for an automobile engine manifold. Background Art

[0002] With the development of the automotive industry and advancements in technology, the demand for engine performance is becoming increasingly stringent. As a key component connecting the intake system to the cylinders, the airtightness of the engine manifold directly affects the engine's operating efficiency and emissions performance. Therefore, ensuring the airtightness of the engine manifold has become an essential quality control step in the manufacturing process.

[0003] Traditional methods for testing engine manifold air tightness typically include dry and wet testing. While the dry method is simple to use, it often struggles to detect subtle leaks, especially on complex manifold structures. The wet method, on the other hand, requires the manifold to be completely immersed in water and leaks detected by observing for bubbles. While this method improves detection accuracy, it carries challenges such as lengthy preparation time and cumbersome procedures. Furthermore, it can be challenging to perform on complex manifolds. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an automobile engine manifold air tightness detection device with simple operation procedures and strong shape adaptability.

[0005] The utility model discloses an automobile engine manifold air tightness detection device, comprising:

[0006] Clamping assembly;

[0007] The test box has a mounting piece symmetrically arranged on one side of the top of the test box. A support shaft is rotatably arranged in the inner hole of the mounting piece. An operating table is arranged on the support shaft. The clamping assembly is arranged on the operating table. The engine manifold is fixed to the operating table by a pressurizing assembly. The cavity of the test box is filled with test fluid. During testing, the engine manifold is completely immersed in the test fluid.

[0008] A pressurizing assembly is provided on the operating table and is used to fill the engine manifold with gas;

[0009] The drive assembly is arranged on the test box and is used to support the shaft to drive the operating table to provide rotational power.

[0010] Furthermore, the clamping assembly includes multiple groups of cylinders arranged on the operating table, and a pressure plate is provided at the output end of the cylinder, and the pressure plate is arranged on the protective pad through an adjusting assembly.

[0011] Preferably, the adjustment assembly includes a threaded column arranged in the threaded hole of the pressure plate, a protective pad is coaxially arranged at one end of the threaded column, and an adjustment cap is coaxially arranged at the other end of the threaded column.

[0012] Furthermore, the pressurizing component includes an air pump arranged on the test box, a hose is coaxially arranged at the output end of the air pump, the other end of the hose is connected to the guide tube, and the two ends of the guide tube are respectively arranged in the operating table positioning hole and the mounting hole, and the operating table mounting hole is located at the engine manifold positioning clamp.

[0013] Preferably, a sealing gasket is provided on the operating table and is located in the engine manifold clamping area.

[0014] Furthermore, the driving assembly includes a servo motor arranged on the test box, a worm is coaxially arranged on the output end of the servo motor, a worm wheel is coaxially arranged on the support shaft, and the worm wheel and the worm are meshingly connected.

[0015] Preferably, the worm is rotatably disposed in an inner hole of a stabilizing member, and the stabilizing member is disposed on the test box.

[0016] Furthermore, the worm and the worm wheel are both located in the inner cavity of the isolation member, and the isolation member is arranged on the test box.

[0017] Preferably, a plurality of groups of Formosa wheels are provided at the bottom of the test box.

[0018] Furthermore, a drain valve is provided at the bottom of the test box.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present device adopts a full immersion testing method, the engine manifold is completely placed in the test liquid, and the inside of the manifold is inflated by the pressurizing component, which can make any tiny leakage point appear on the liquid surface in the form of bubbles, thereby greatly improving the accuracy and reliability of the detection. The design of the clamping component facilitates the rapid installation and removal of the test piece, simplifying the preparation process; at the same time, the operating table can be rotated through the support shaft under the action of the driving component, so that the engine manifold can be easily immersed in and removed from the test liquid. The device is suitable for various types of automobile engine manifolds. Regardless of the difference in shape or size, it can adapt to different test objects by adjusting the clamping component. Therefore, it has strong versatility and adaptability, simple operation process, and strong shape adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is an axonometric structural diagram of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0023] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0024] Markings in the accompanying drawings: 1. Test box; 2. Mounting part; 3. Support shaft; 4. Operating table; 5. Cylinder; 6. Pressure plate; 7. Protective pad; 8. Threaded column; 9. Adjustment cap; 10. Air pump; 11. Hose; 12. Guide tube; 13. Sealing gasket; 14. Servo motor; 15. Worm; 16. Worm gear; 17. Stabilizer; 18. Isolator; 19. Forma wheel; 20. Drain valve. DETAILED DESCRIPTION

[0025] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] like Figures 1 to 4 As shown, the automobile engine manifold air tightness detection device of the utility model includes:

[0027] Clamping assembly;

[0028] A test box 1 is provided with a mounting member 2 symmetrically disposed on one side of the top of the test box 1. A support shaft 3 is rotatably disposed in the inner hole of the mounting member 2. An operating table 4 is disposed on the support shaft 3. A clamping assembly is disposed on the operating table 4. The engine manifold is fixed to the operating table 4 via a pressurizing assembly. The cavity of the test box 1 is filled with a test fluid. During testing, the engine manifold is completely immersed in the test fluid.

[0029] A pressurizing assembly is provided on the operating table 4 and is used to fill the engine manifold with gas;

[0030] The driving assembly is arranged on the test box 1, and the driving assembly is used to support the shaft 3 to drive the operating table 4 to provide rotational power; this device adopts a full immersion test method, the engine manifold is completely placed in the test liquid, and the inside of the manifold is inflated by the pressurizing assembly, which can make any tiny leakage points appear on the liquid surface in the form of bubbles, thereby greatly improving the accuracy and reliability of the detection. The design of the clamping assembly facilitates the rapid installation and removal of the test piece, simplifying the preparation process; at the same time, the operating table 4 can be rotated by the supporting shaft 3 under the action of the driving assembly, so that the engine manifold is easy to immerse in and remove from the test liquid. The device is suitable for various types of automobile engine manifolds. Regardless of the difference in shape or size, it can adapt to different test objects by adjusting the clamping assembly. Therefore, it has strong versatility and adaptability, simple operation process, and strong shape adaptability.

[0031] like Figures 1 to 4As shown, as a preferred solution, the clamping assembly includes multiple groups of cylinders 5 arranged on the operating table 4, and a pressure plate 6 is provided at the output end of the cylinder 5. A protective pad 7 is provided on the pressure plate 6 through an adjusting assembly. The adjusting assembly includes a threaded column 8 arranged in the threaded hole of the pressure plate 6, and the protective pad 7 is coaxially arranged at one end of the threaded column 8, and an adjusting cap 9 is coaxially provided at the other end of the threaded column 8; by using multiple groups of cylinders 5 to fix the engine manifold, a uniform and strong clamping force can be provided to ensure that the test piece is stable and motionless during the detection process, thereby improving the consistency and accuracy of the test results. A protective pad 7 is provided on the pressure plate 6, which can effectively prevent damage to the surface of the test piece when pressure is applied. The design of the adjusting assembly allows the user to easily adjust the position of the protective pad 7 by rotating the adjusting cap 9 to adapt to engine manifolds of different sizes and shapes. Since the clamping assembly is easy to adjust and quick to install, the entire preparation process becomes simpler and more efficient. The staff can complete the installation and positioning of manifolds of different specifications in a short time, thereby improving work efficiency.

[0032] like Figures 1 to 4 As shown, as a preferred embodiment, the pressurizing component includes an air pump 10 arranged on the test box 1, and a hose 11 is coaxially arranged on the output end of the air pump 10. The other end of the hose 11 is connected to the guide tube 12, and the two ends of the guide tube 12 are respectively arranged in the positioning hole and the mounting hole of the operating table 4. The mounting hole of the operating table 4 is located at the positioning clamp of the engine manifold; the air pump 10 is used as the gas supply source, which can provide a stable and adjustable pressure output. The design of the hose 11 and the guide tube 12 ensures that the gas transmission path is unobstructed and that the gas is stably filled into the engine manifold. The guide tube 12 is directly connected to the positioning clamp of the engine manifold to ensure that the gas can accurately enter the interior of the manifold. The use of the hose 11 increases the flexibility of the layout of the pressurizing component and facilitates installation and adjustment at different positions.

[0033] like Figures 1 to 4 As shown, as a preferred embodiment, a sealing gasket 13 is provided on the operating table 4, located in the engine manifold clamping area. This placement of the sealing gasket 13 in the engine manifold clamping area on the operating table 4 effectively fills the tiny gap between the DUT and the operating table, forming a well-sealed interface. This helps prevent gas leakage from the clamping area during testing, ensuring the accuracy of test results. The sealing gasket 13 is typically made of a soft and somewhat elastic material, providing a cushioning effect on the engine manifold surface when clamping force is applied, preventing scratches or damage that might otherwise be caused by hard contact.

[0034] like Figures 1 to 4As shown, as a preferred solution, the drive assembly includes a servo motor 14 arranged on the test box 1, a worm 15 is coaxially arranged on the output end of the servo motor 14, a worm wheel 16 is coaxially arranged on the support shaft 3, the worm wheel 16 is meshingly connected with the worm 15, the worm 15 is rotatably arranged in the inner hole of the fixing member 17, the fixing member 17 is arranged on the test box 1, the worm 15 and the worm wheel 16 are both located in the inner cavity of the isolation member 18, and the isolation member 18 is arranged on the test box 1; the servo motor 14 is used as the power source, which can provide high-precision position control and speed regulation. Through the meshing transmission of the worm 15 and the worm wheel 16, the rotation angle of the operating table 4 can be accurately controlled to ensure that the engine manifold is immersed in and removed from the test liquid. The worm gear mechanism has a self-locking characteristic, that is, when no external force is applied, the worm wheel will not rotate by itself due to the load. This feature ensures that the operating table 4 can maintain a fixed position even if an unexpected situation occurs during the test. The stabilizing member 17 and the isolating member 18 work together to not only enhance the rigidity of the transmission system, but also effectively isolate the moving parts, preventing the operator from directly contacting the moving parts, thereby improving the safety of the overall operating environment.

[0035] like Figures 1 to 4 As shown, as a preferred embodiment, multiple sets of Forma wheels 19 are provided at the bottom of the test box 1; the multiple sets of Forma wheels 19 provided at the bottom of the test box 1 make the entire detection device easy to move, and the user can easily transfer the device from one position to another as needed, which is suitable for moving between different working areas. The Forma wheels 19 are equipped with a locking mechanism that can fix the wheels when they do not need to be moved to prevent the device from accidentally sliding.

[0036] like Figures 1 to 4 As shown, as a preferred solution, a drain valve 20 is provided at the bottom of the test box 1; the liquid in the test box can be quickly drained through the drain valve 20, reducing the time required for each replacement of the test liquid or cleaning of the equipment, thereby improving the overall work efficiency.

[0037] like Figures 1 to 4 As shown, as a preferred solution, its working process is as follows:

[0038] Place the engine manifold to be tested on the sealing gasket 13 of the operating table 4, adjust the pressure of the cylinder 5 so that the protective gasket 7 on the pressure plate 6 fits tightly against the surface of the engine manifold, providing a uniform and strong clamping force. Adjust the position of the protective gasket 7 by rotating the adjusting cap 9 to adapt to engine manifolds of different shapes and sizes to ensure a good sealing effect. Start the servo motor 14 in the drive assembly, and drive the support shaft 3 to rotate through the meshing transmission of the worm 15 and the worm gear 16, so that the operating table 4 and the engine manifold fixed thereon are steadily immersed in the test liquid. Start the air pump 10 and inflate the interior of the engine manifold through the hose 11 and the guide tube 12. Observe whether there are bubbles on the surface of the test liquid and record the location and number of bubbles to determine whether there is a leak in the engine manifold. For the leak points found, you can use a marking tool to mark them for subsequent repair or further inspection. After the test is completed, start the servo motor 14 again to rotate in the opposite direction, and steadily remove the operating table 4 and the engine manifold from the test liquid.

[0039] The automobile engine manifold air tightness detection device of the present invention has common mechanical installation, connection or setting methods, and any method that can achieve its beneficial effects can be implemented.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Automobile engine manifold air tightness detection device, characterized in that: include: Clamping assembly; A test box, wherein a mounting member is symmetrically provided on one side of the top of the test box, a support shaft is rotatably provided in an inner hole of the mounting member, an operating table is provided on the support shaft, the clamping assembly is provided on the operating table, the engine manifold is fixed to the operating table by a pressurizing assembly, the interior of the test box cavity is filled with a test fluid, and during testing, the engine manifold is completely immersed in the test fluid; A pressurizing assembly, the pressurizing assembly being disposed on an operating table and being used to fill the engine manifold with gas; A drive assembly is provided on the test box and is used to support the shaft to drive the operating table to provide rotational power.

2. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: The clamping assembly includes multiple groups of cylinders arranged on the operating table, and the output ends of the cylinders are provided with pressure plates, and the pressure plates are arranged on the protection pads through the adjustment assembly.

3. The automobile engine manifold air tightness detection device according to claim 2, characterized in that: The adjustment component includes a threaded column arranged in the threaded hole of the pressure plate, the protection pad is coaxially arranged at one end of the threaded column, and the other end of the threaded column is coaxially provided with an adjustment cap.

4. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: The pressurizing component includes an air pump arranged on the test box, a hose is coaxially arranged at the output end of the air pump, the other end of the hose is connected to the guide pipe, and the two ends of the guide pipe are respectively arranged in the operating table positioning hole and the mounting hole, and the operating table mounting hole is located at the engine manifold positioning clamp.

5. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: A sealing gasket is provided on the operating table and is located in the engine manifold clamping area.

6. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: The driving assembly includes a servo motor arranged on the test box, a worm is coaxially arranged on the output end of the servo motor, a worm wheel is coaxially arranged on the support shaft, and the worm wheel is meshingly connected with the worm.

7. The automobile engine manifold air tightness detection device according to claim 6, characterized in that: The worm is rotatably arranged in the inner hole of the stabilizing member, and the stabilizing member is arranged on the test box.

8. The automobile engine manifold air tightness detection device according to claim 6, characterized in that: The worm and the worm wheel are both located in the inner cavity of the isolation member, and the isolation member is arranged on the test box.

9. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: A plurality of groups of Forma wheels are arranged at the bottom of the test box.

10. The automobile engine manifold air tightness detection device according to claim 1, characterized in that: A drain valve is provided at the bottom of the test box.

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